EP1698436B1 - Device for inserting and extracting a rearwardly closed wheel bearing - Google Patents
Device for inserting and extracting a rearwardly closed wheel bearing Download PDFInfo
- Publication number
- EP1698436B1 EP1698436B1 EP06003914A EP06003914A EP1698436B1 EP 1698436 B1 EP1698436 B1 EP 1698436B1 EP 06003914 A EP06003914 A EP 06003914A EP 06003914 A EP06003914 A EP 06003914A EP 1698436 B1 EP1698436 B1 EP 1698436B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressing
- plate
- bearing
- axially
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
- Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
- Y10T29/53857—Central screw, work-engagers around screw
- Y10T29/53861—Work-engager arms along or parallel to screw
- Y10T29/53865—Work-engager arms along or parallel to screw with arm connecting engaging means
Definitions
- the invention relates to a device for extracting and pressing a receivable in a bearing bore of a bearing housing of an axle body wheel bearing, according to the preamble of patent claim 1 ..
- DE 93 15 919.6 U1 known to use a so-called perforated disc, which on Wheel flange of Radflanschnabe outside is attachable.
- a suitable pressing device which in the subject matter of DE 93 15 919.6 U1 is designed as a spindle drive, as well as different, on the wheel bearing or on the Achsbauteil supporting pressure plates, centering or support plates can be exchanged with said device, the Radflanschnabe and the wheel bearing of an axle of a motor vehicle.
- a supporting plate which is U-shaped.
- This support plate has a U-shaped recess, with which the support plate between the wheel flange of Radflanschnabe and the Achsbauteil or the bearing housing of Achsbauteils can be introduced, so that this support plate is axially supported when pulling the Radflanschnabe from the associated wheel bearing on the bearing housing.
- a pull spindle is used for pressing, which extends axially through the wheel hub.
- axle components with Radflanschnaben and wheel bearings
- a brake disc is arranged, which is therefore in the assembled state between the wheel flange and the wheel to be mounted later of a motor vehicle.
- axle components are provided with radially projecting mounting eyes for a brake caliper to which a caliper in the peripheral region of the brake disc is fixedly mounted.
- this device has a support plate which is stationary and releasably connectable at the distance to the axle body on the wheel flange axially opposite side of the axle body with the mounting eyes or the bearing eyes. Further, the support plate is provided with a support member, with which the support plate with a steering lever or another, radially projecting component of the axle body is fixedly engageable engaged.
- This support plate serves as an abutment for a pressing device, which is formed from a hydraulic cylinder.
- This hydraulic cylinder is fixedly connected via tie bolts with the hub flange. To pull out and to press in, the hydraulic cylinder on a press rod, which axially projects through the wheel hub during pressing and axially supported on the support plate.
- the invention has the object, a device of the generic type such that the replacement of closed Radflanschnaben and / or closed wheel bearings is easy and safe to carry out.
- the inventive design a device is provided with which it is possible in a simple and safe way to replace closed hubs or closed wheel bearings.
- the guide plate can be U-shaped, wherein the support flange extends over approximately 180 ° and can be brought over this angular range, on the one hand, on the rear side with the wheel hub flange and on the other hand with the outer bearing ring of the wheel bearing.
- the recess of the pressure plate or the guide plate is formed with its support flange in their radial dimensions such that the support flange in the inserted between the hub and the bearing housing state extends radially inwardly to the "outer ring" of the wheel bearing.
- it can be brought into pressure contact, in particular for pressing the wheel bearing directly to the wheel bearing, so that the wheel bearing can be pressed without any damage in the bearing housing.
- the extraction takes place by direct train of the pressure plate or guide plate with its support flange or the guide plate itself, depending on the design of the wheel hub, on the radially projecting hub flange.
- the support flange of the guide plate is provided in the region of its radial inner edge with an axially projecting support web, with which the wheel bearing sunk into the bearing housing is pressed.
- the thickness of the support flange is adapted with its support web to the inside width of the intermediate space between the hub flange and the bearing housing such that after pressing the wheel bearing, the guide plate are moved with its support flange against the press-in towards the Radnabenflansches and taken out of the space can.
- the guide plate according to claim 3 may be associated with a holding plate which is removably attached to the guide plate.
- This holding plate also has an approximately semicircular recess, which is bounded radially by a support flange. With the support flange, the retaining plate is inserted into the space between the hub flange of the wheel hub and the bearing housing of the axle body so that the support flange is axially supported during the extraction process back on the hub flange and the press-fitting on the wheel bearing. That During operation, the wheel hub is fully received in front of the guide plate and the retaining plate.
- the wheel hub with the on the Radflanschnabe initially engaged with the guide plate, so that the guide plate is arranged with its support flange between the outer bearing ring of the wheel bearing and the hub flange.
- the retaining plate is fixedly connected to the guide plate, for example by screw, connected, so that the retaining plate with its support flange between the outer bearing of the wheel bearing and the Radnabenflansch passes.
- the support flange of the holding plate in the region of its radial inner edge with an axially projecting Be provided support bar, so that even with the retaining plate, the wheel bearing can be sunk into the bearing housing sunk.
- the design of the support web corresponds to the configuration of the support web of the guide plate.
- the pressing device has a support plate which is fastened by support rods fixed to the bearing eyes of the axle and that the pressing device has an axially adjustable to the support plate pressing rod, which with the press plate axially fixed coupled can be coupled.
- the pressing plate moves relative to the pressing device or relative to the support plate and thus also relative to the axle in the axial direction, so that depending on the direction of activation of the pressing device on the press plate optionally pulled on Radnabenflansch or pressed onto the wheel bearing.
- the device according to the invention can also be used directly on the vehicle. If such an insert on the vehicle is not desired, then the press plate can also be used in conjunction with a stationary press, which can be attached correspondingly to the axle body.
- a coupling bridge is provided which is axially fixedly coupled during the pressing process with the press rod. Consequently, this coupling bridge moves along with the pressing rod so that, inevitably, the pressing plate is also moved in one or the other pulling or pressing direction.
- This coupling bridge can be like a bar in a simple form be formed, the length of which is greater than the diameter of the hub flange, so that the coupling bridge is mechanically coupled in a simple manner with the pressing process "behind" the hub flange arranged pressing plate.
- the press plate protrudes beyond the wheel hub flange at least partially in the radial direction.
- beam-shaped coupling bridge may also be formed plate-shaped or in any other suitable form.
- the press rod is part of a hydraulic cylinder, which is axially fixed interchangeable with the support plate in engagement and that the press rod has an adjusting thread, via which the press rod is axially adjustably received in an axially adjustable pressing piston of the hydraulic cylinder.
- the pressing device is adaptable to different dimensions of the axle body by the axial adjustability of the press rod in the plunger of the hydraulic cylinder.
- the press rod can be coupled with the coupling bridge extremely simple.
- the pressing rod for pressing the wheel hub together with the wheel bearing with its adjusting thread with coupling bridge can be brought into train connection.
- the coupling bridge itself may be provided with an internal thread into which the adjusting thread of the press rod can be screwed.
- the press rod is put through a corresponding through hole of the coupling bridge and "a backside" a pull nut is screwed onto the adjusting thread.
- this internal thread of the coupling bridge for the production of the train connection is part of a tension sleeve, which is arranged in a recess of the coupling bridge and is supported axially during the Auspressvorganges on an inner end wall of the recess.
- the tension sleeve is held axially adjustable and non-rotatable via radially projecting into the recess of the coupling bridge in the coupling pin and that the coupling pins engage in adjusting slots of the tension sleeve radially. Due to the axial adjustability of the tension sleeve is adjustable with the threads of their internal threads on the threads of the adjusting thread of the press rod.
- an automatic axial alignment of the threads of the internal thread of the tension sleeve is achieved in the axial displacement of the press rod with its adjusting thread on the threads of the press rod.
- the axial compression spring is axially supported axially on a sealing cover detachably screwed on the outside of the coupling bridge in the region of the depression.
- the press rod with the coupling bridge for pressing the wheel bearing in a simple manner can be brought into pressure connection.
- This printhead can be provided with an external hexagon according to claim 13, so that the pressing rod is axially adjustable in the pressing piston of the hydraulic cylinder in a simple manner.
- the guide plate and the retaining plate are preferably screwed together in their attached to the wheel hub state.
- the attachment of the wheel hub is considerably simplified together with the wheel bearing for pressing.
- the pressure plate is provided with two guide holes, via which the pressure plate is guided concentrically to the bearing housing and the wheel hub on two of the support rods axially adjustable.
- To mount the wheel hub is inserted into the guide plate and moved against the bearing housing until the seated on the Radflanschnabe wheel bearing is in contact with the bearing bore of the bearing housing.
- the retaining plate can be attached to the wheel hub and bolted to the guide plate. Due to this guidance of the guide plate on the fixedly connected to the axle support rods thus the wheel hub is automatically aligned together with the wheel bearing concentric with the bearing bore, so that tilting during the subsequent press-in is safely excluded.
- the hydraulic cylinder is designed as a single-acting hollow piston cylinder and is provided at its two axial ends with coupling elements, with which the hydraulic cylinder for selectively applying tensile or compressive forces to the support plate in different orientations into engagement can be brought.
- coupling thread or snap closures can be provided.
- a quick release may be a usable in a corresponding receiving bore of the support plate clutch cylinder, which is secured via transverse spigot or on the back in a radial groove of the clutch cylinder usable U-shaped locking plates in the receiving bore.
- the device according to the invention is suitable for pulling and pressing wheel bearings, which are secured by means of conventional securing rings or else via a so-called locking collar or securing ring in the bearing housing.
- a ratchet or safety ring is pressed tightly onto the outer ring of the bearing and engages with radially resilient protruding securing tongues in a circumferential groove of the bearing bore of the bearing housing.
- Such backup or locking rings are used in recent times, since a fully automatic assembly line assembly of the wheel hub is made possible together with the wheel bearing in the bearing housing.
- Fig. 1 shows a pressing device 1 of the device according to the invention.
- This pressing device 1 consists in the present embodiment of a support plate 2, which has a central internal thread 3 has.
- This internal thread 3 is used for interchangeable receiving a hydraulic cylinder 4, which is designed as a so-called hollow piston cylinder and has an axially movable plunger 5.
- the pressing piston 5 is provided with an axially adjustable pressing rod 6, which is provided in its one end portion with a driving hexagon 7.
- This drive hexagon 7 axially opposite the press rod 6 has a print head 8, which is formed radially widened and is provided with key surfaces 38.
- this has, for example, in each case a coupling thread 9 and 10 in its two end regions.
- a coupling thread can also be provided as a quick release coupling cylinder as coupling elements, which can be used in a corresponding receiving bore of the support plate.
- a quick release coupling cylinder as coupling elements, which can be used in a corresponding receiving bore of the support plate.
- the clutch cylinder in the receiving bore may be provided radially or tangentially to the coupling cylinder extending into the receiving bore into projecting securing pin.
- the receiving bore in the inserted state, completely protrude and be provided with a circumferential groove, in which, for example, a U-shaped locking plate for locking the clutch cylinder can be inserted.
- the rear coupling thread 9 is formed smaller in diameter than the internal thread 3 of the support plate 2
- an adapter piece 11 is provided for coupling the coupling thread 9 of the hydraulic cylinder 4 with the internal thread 3 of the support plate 2, which has an external thread 12, with which the adapter piece 11 in the internal thread 3 of Support plate 2 can be screwed.
- the adapter piece 11 has a radially expanded stop collar 13 in its front end region.
- the adapter piece 11 is provided with a corresponding internal thread 14.
- the hydraulic cylinder 4 via the adapter piece 11 fixed and interchangeable with the support plate 2 is engageable.
- the hollow cylinder designed as a hydraulic cylinder 4 is acting unilaterally, so that when activated the plunger 5 at the in Fig. 1 shown orientation of the hydraulic cylinder 4 is adjusted in the direction of arrow 15.
- an adjustment of the press rod 6 is effected in the direction of the arrow 15, so that with this corresponding tensile forces can be applied.
- the press rod 6 is formed in the present embodiment as a threaded rod and accordingly has an adjusting thread 16, via which the pressing rod 6 is variable relative to the pressing piston 5 axially adjustable.
- the adjusting thread 16 extends in the present embodiment of the pressing rod 6 over its entire axial length between the driving hexagon 7 and the radially expanded print head eighth
- Fig. 1 is further recognizable that in the present embodiment, a total of three support rods 17, 18 and 19 are provided.
- Each of these support rods 17, 18 and 19 has the support plate 2 towards the front side in each case an internal thread 20, 21 and 22, via which the support rods 17, 18 and 19 are fixed and detachably connected to the support plate 2.
- the support plate 2 is correspondingly provided with three through holes 23, 24 and 25. Through these through holes 23, 24 and 25 corresponding mounting screws 26 are plugged through and accordingly with the internal threads 20, 21 and 22 of the respectively associated support rod 17, 18 and 19 engageable.
- the support rods may also be provided with axially projecting threaded pins, which can be inserted through the through holes 23, 24 and 25 of the support plate 2 and fastened to the support plate 2 via corresponding mounting nuts.
- the two cylindrically shaped support rods 17 and 18 in their, the internal threads 20 and 21 opposite end portion are each frontally provided with a second internal thread 27 and 28, in each of which a fastening screw 29 can be screwed.
- a fastening screw 29 can be screwed.
- the two support rods 17 and 18 are each fixedly connected to the mounting flange of an axle body. This will be explained in more detail below.
- axially projecting threaded pins can alternatively be provided, which can either be screwed into corresponding threads of the bearing eyes of an axle body or can be fastened to the bearing eyes via mounting nuts.
- the third support rod 19 is provided in its, the internal thread 22 opposite end portion, with a mounting head 30, which has two mutually parallel mounting surfaces 31 and 32 in the present embodiment.
- this with its mounting head 30 with one of its two mounting surfaces 31 or 32 for example, on the bearing eye of a steering lever of an axle body attachable, as will be explained in more detail below.
- a retaining screw 33 is provided in the present embodiment, which is plugged through the bearing eye of the steering lever and provided for screwing into an internal thread 34 of the mounting head 30 with a corresponding threaded pin 35.
- the retaining screw 33 in its, the threaded pin 35 opposite end portion, a radially enlarged cylinder portion 36, which serves for manually screwing the retaining screw 33 into the internal thread 34 of the mounting head 30.
- a drive shaft 37 is provided in the axial extension of the cylinder portion 36, via which the retaining screw 33 can be tightened by means of a suitable key tool.
- the pressing rod 6 is optionally, depending on the orientation of the hydraulic cylinder 4, with a coupling bridge 40 in tensile or pressure connection can be brought.
- This coupling bridge 40 is made Fig. 2 visible in perspective. It can be seen that this coupling bridge has a central through-bore 41, which is provided to the pressing rod 6 with a radially enlarged recess 42. With this recess 42, the coupling bridge 40 with the print head 8 of the press rod 6 is made Fig. 1 can be brought in pressure connection.
- FIG. 2 can be seen in dashed lines that the through hole 41 is provided on its, the recess 42 axially opposite side, with a second, radially enlarged, greater than the recess 42 formed recess 43.
- This recess 43 is formed deeper in the axial length than the front recess 42 and serves to receive a tension sleeve 44th
- This tension sleeve 44 can be used with little play and axially adjustable in the recess 43.
- the tension sleeve 44 For coupling with the adjusting thread 16 the compression rod 6, the tension sleeve 44 has a corresponding internal thread 45.
- two grub screws 46 are provided in the present embodiment, which can be screwed through corresponding opening into the recess 43, radially to the recess 43 extending through hole 47.
- the grub screws 46 each have a coupling pin 48, with which the grub screws 46 in correspondingly arranged in the tension sleeve 44 longitudinal slots 49 are engageable. These longitudinal slots 49 are limited in their axial extent and thus limit the axial maximum possible travel of the tension sleeve 44 in the recess 43.
- sealing cover 51 is provided for holding the tension sleeve 44 in the recess 43.
- the through hole 50 is used in operation to carry out the push rod 6 with its drive hexagon 7 in its the sleeve 44 screwed state.
- a corresponding Axialdruckfeder 53 is provided in order to press the tension sleeve 44 against the inner end wall 52 of the recess 43 resiliently yielding.
- a screwing of the adjusting thread 16 of the press rod 6 in the internal thread 45 of the tension sleeve 44 allows in a simple manner.
- the compression rod 6 with its adjusting thread 16 does not have to be axially adjusted to the axial position of the tension sleeve 44 with its internal thread 45.
- two mounting screws 54 are provided in the present embodiment, which by two through holes 55 of the closure lid 51st can be plugged in and screwed into two internal threads 56 of the coupling bridge 40 accordingly.
- the coupling bridge 40 is formed like a bar in the present embodiment and extends from its central through hole 41 laterally symmetrical to the through hole 41.
- the coupling bridge 40 is provided with a through hole 59 and 60, respectively which in each case a connecting screw 61 and 62 can be inserted therethrough.
- a pressing plate 65 is fixedly connected to the coupling bridge 40.
- two spacer sleeves 66 and 67 are provided in the present embodiment, through which the two connecting screws 61 and 62 can be inserted therethrough.
- this exemplified coupling bridge 40 may also be a plate-shaped or otherwise kind of coupling device may be provided, which finds place between the support rods 17, 18 and 19 and allows a coupling of the compression rod 6 with the pressure plate 65.
- the pressure plate 65 consists of a guide plate 68 and a releasably connectable to this plate 69.
- two connecting screws 70 and 71 are provided in the present embodiment, which through corresponding through holes 72 and 73 of the support plate 69 plugged through and into two correspondingly assigned internal thread 74 and 75 of the guide plate 68 are screwed, as in Fig. 2 is shown by way of example.
- the guide plate 68 and the holding plate 69 each have a corresponding internal thread 76 and 77, respectively.
- the guide plate 68 has an approximately semicircular recess 80 towards the holding plate 69.
- the holding plate 69 is also provided to the guide plate 68 with a semicircular recess 81.
- the two recesses 80 and 81 form a circular opening.
- the guide plate 68 and the holding plate 69 in the radial vicinity of their recesses 80 and 81 have a smaller thickness.
- the guide plate 68 and the holding plate 69 form the coupling bridge 40 toward a flat support surface 82 and 83, via which the guide plate 68 and the support plate 69 are supported at the rear of the wheel hub flange of a wheel hub during the extraction process of a wheel bearing.
- the radial surrounding regions of the two semicircular or U-shaped recesses 80 and 81 form a kind of support flange 84 and 85, respectively in the radially inner region with an axially to each front end face 86 and 87 of the guide plate 68 and the holding plate 69 projecting, annular support bar 88 and 89 are provided. Accordingly, close radially outwardly to the two support webs 88 and 89 circular arc extending depressions 90 and 91 at.
- the guide plate 68 has two through holes 92 and 93, over which the guide plate 68 and thus the fixedly mounted on the guide plate 68 retaining plate 69 is axially adjustably guided on the two support rods 17 and 18, as further below is explained.
- Fig. 3 schematically shows an axle body 100, as used for example in motor vehicles.
- This axle body 100 has a central bearing housing 101, which forms a central bearing bore 102.
- a bearing block 105 provided with two transverse bores 103 and 104 is provided in the upper end region of the axle body 100 in the present exemplary embodiment.
- this has a rearwardly arranged bearing web 106 with a corresponding receiving bore 107, via which the axle body 100 can be coupled, for example, with the ball joint of a transverse link of a motor vehicle axle.
- the bearing block 105 is usually used to couple the axle body 100 with a shock absorber.
- the axle body 100 has a laterally projecting articulation lever 108, which is provided at its outer end with a bearing eye 109.
- This bearing eye 109 has for coupling with other axle components of a motor vehicle axle in the illustrated embodiment, a corresponding through hole 110.
- Fig. 3 it is off Fig. 3 can be seen that the axle body 100 is provided on its side opposite the linkage lever 108 side with two mounting eyes 111 and 112, which in turn are provided with corresponding mounting holes 113 and 114.
- mounting eyelets serve 111 and 112, as in Fig. 3 are shown by way of example, for mounting a brake caliper on the axle body 100.
- the pressing device 1 With these mounting eyes 111, 112, the pressing device 1 is off Fig. 1 via its two support rods 17 and 18 fixed to the axle body 100 mountable.
- the third support rod 19 with its mounting head 30 is in turn fixedly coupled to the bearing eye 109 of the coupling lever 108.
- the pressing device 1 with its support plate 2 and the hydraulic cylinder 4 is fixedly mounted on the support rods 17, 18 and 19 on the axle body 100 and on its bearing lugs 109, 111 and 112 fixed.
- FIG. 3 in a perspective view of a wheel hub 115 on which a wheel bearing 116 is fixedly arranged.
- the wheel hub 115 forms a radially enlarged wheel hub flange 117 in the region of its end protruding from the wheel bearing 116.
- This wheel hub flange 117 serves to receive a brake disk and a wheel of the motor vehicle during normal operation of a motor vehicle, for which purpose this wheel hub flange 117 is provided with a plurality of internal threads 118 is.
- the wheel hub 115 is rotatably mounted in the bearing housing 101 of the axle body 100 in the normal operation of the motor vehicle via the wheel bearing 116.
- the wheel bearing 116 is pressed into the bearing bore 102 of the bearing housing 101.
- Such a ready assembled state the wheel hub 115 in the bearing housing 101 of the axle body 100 shows Fig. 4 in a side view IV Fig. 3 ,
- Fig. 4 How out Fig. 4 can be seen is in this mounted state between the outer end face surface 119 (see also Fig. 3 ) of the bearing housing 101 and the hub flange 117, a gap 120 is formed, which extends radially to the flange 116 received in the wheel bearing 121. It can be seen that the flange hub 121 has a significantly smaller diameter than the wheel bearing 116 and the bearing housing 101.
- Fig. 4 indicated by the dashed line 122, that the wheel bearing 116 is axially recessed in the illustrated operating position, that is arranged offset back to the end face 119 of the bearing housing 101.
- the peculiarity of the wheel hub 115 and the wheel bearing 116 is in this embodiment, that the hub 115 has no central through hole. Furthermore, the wheel bearing 116 is closed by a closure lid, not shown in detail in the drawing. Because of this particular embodiment of this axle construction, it is now not possible to remove the wheel bearing 116 from the bearing housing 101 by means of a pulling spindle projecting through the wheel hub 116.
- a pressing of the wheel bearing 116 via the hub 115 is also not possible with the conventional devices, since there would be a danger in this press-fitting process that the wheel bearing 116 would be damaged by the extremely high axial pressing forces. Especially for this extraction or pressing the device of the invention is provided.
- Fig. 5 shows a perspective view of the axle 100 mounted in the wheel hub 115, which with its in Fig. 5 non-visible wheel bearing 116 rotatably mounted in the bearing housing 101 is.
- the wheel hub 115 has in this mounted position with its hub flange 117 at an axial distance from the front end ring surface 119 (shown in dashed lines) of the wheel bearing housing 101.
- the pressure plate 65 is now initially used with its guide plate 68 radially.
- the guide plate 68 comes with its support surface 82 flat against the back of the wheel hub flange 117 to the plant.
- the holding plate 69 can be mounted on this.
- the guide plate 68 diametrically opposite also in the intermediate space 120 between the wheel hub 117 and the end face 119 of the bearing housing 101 radially inserted.
- both the semicircular recess 80 of the guide plate 68 and the semicircular recess 81 of the holding plate 69 are selected so that the flange hub 121 (FIG. Fig. 4 ) is received with play in the formed by these two recesses 80 and 81 through hole. That is, the pressure plate 65 arranged in the intermediate space 120 is freely rotatable both relative to the bearing eye 101 and relative to the wheel hub flange 117, as is particularly clear Fig. 6 is apparent.
- the pressing plate 65 with the through holes 92 and 93 is adjusted about the rotation axis 125 of the wheel hub 115 in its angular position such that the through hole 92 coaxial with the mounting eye 111 and the through hole 93 is aligned coaxially with the bearing eye 112 of the axle body 100, as is apparent from Fig. 6 is recognizable. It is off Fig. 6 Further, it can be seen that the holding plate 69 is fixedly connected to the guide plate 68 via the two connecting screws 70 and 71, so that the guide plate 68 together with the holding plate 69 forms a stable, uniform pressure plate 65.
- the support rod 19 can be brought with its mounting head 30 with the bearing eye 109 of the axle 100 in connection.
- the mounting head 30 is placed, for example, with its lower mounting surface 32 on the bearing eye 109 and the retaining screw 33 through the Fig. 3 apparent through hole 110 of the bearing eye 109 inserted through and brought into engagement with the internal thread 34 of the bearing head 30.
- the support plate 2 with the support rods 17, 18 and 19 on their axis of the body 100 opposite sides can be fastened.
- the mounting screws 26 are provided, as is made Fig. 7 is apparent.
- the retaining screw 33 can now be tightened so that the support rods 17, 18 and 19 together with the support plate 2 and the axle 100 a fixed Form unity.
- the approximately triangular shape of the holding plate 69 is selected such as in particular Fig. 7 It can be seen that the retaining plate 69 can not collide with the support rod 19.
- the retaining plate 69 after loosening or removing the two connecting screws 70 and 71 are removed from the axle body 100, which will be explained again later.
- the hydraulic cylinder 4 is brought via the adapter piece 11 with the support plate 2 in connection.
- the hydraulic cylinder 4 is formed in the present embodiment as a single-acting hollow piston cylinder, and is used in his in the Fig. 7 to 10 Selected orientation for removing the seated on the wheel hub 115, from Fig. 3 apparent wheel bearing 116 as a pulling device.
- the press rod 6 extends through its adjusting thread 16 and its drive hexagon 7, the support plate 2 to the wheel bearing 115 out.
- the coupling bridge 40 with the connecting screws 61 and 62 and the two spacers 66 and 67 is made Fig. 2 intended.
- the arrangement of the support rod 17, 18 and 19 is chosen so that the coupling bridge 40 with its through hole 41 coaxial with the axis of rotation 125 extending between the support plate 2 and the hub 115 can be used.
- FIG. 8 a perspective partial section, in which the sake of clarity, the support plate 2 with the hydraulic cylinder 4 is not shown and the support rods 17 and 19 shown in section.
- Fig. 8 In this case, the adjusting thread 16 of the pressing rod 6 and the driving hexagon 7 can be seen in the perspective partial section.
- the press rod 6 By turning the press rod 6 via its print head 8 or its outer hexagon 38 in the direction of the arrow 126, the press rod 6 engages with its adjusting thread 16 with the internal thread 45 of the tension sleeve 44 inserted into the coupling bridge 40.
- the tension sleeve 44 is not explicitly shown. Since the threads of the adjusting thread 16 do not generally coincide axially with the threads of the internal thread 45 of the tension sleeve 44, the tension sleeve 44 is received axially adjustably in the coupling bridge 40.
- Fig. 9 a vertical cross section through the coupling bridge 40th
- the tension sleeve 44 is inserted into the recess 43 of the coupling bridge 40.
- the tension sleeve 44 has a radial play for the recess 43, so that it is axially adjustable.
- the two grub screws 46 are in the corresponding, radially extending through threads 47 of the coupling bridge 40 screwed in and project radially into the recess 43 of the coupling bridge 40 inside.
- the two coupling pins 48 of the grub screws 46 engage in the diametrically opposed longitudinal slots 49 of the tension sleeve 44.
- the longitudinal slots 49 are arranged and have such an axial length that the tension sleeve 44 from the in Fig. 9 shown starting position in the direction of arrow 126 is limited adjustable.
- this lies flat against the end wall 52 formed by the depression 43.
- the tension sleeve 44 is held by the Axialdruckfeder 52.
- the recess 43 is secured in this mounted state of the tension sleeve 44 by the externally mounted on the coupling bridge 40 closure lid 51.
- the two connecting screws 70 and 71 (in Fig. 1 only one recognizable) removable. Thereafter, the holding plate 69 after also the connecting screw 62 has been released, be removed from the wheel hub 115.
- the shape of the holding plate 69, as it is made Fig. 10 can be seen, selected such that the holding plate 69 between the two tie rods 18 and 19 can be removed down. None of the tie rods 18 or 19 must be removed for this removal of the retaining plate 69.
- the wheel hub 115 can now be removed together with the wheel bearing 116 from the guide plate 68. Subsequently, the wheel hub 115 is provided with a new wheel bearing and is again pressed into the bearing housing 101 of the axle body 100 by means of the device according to the invention.
- Fig. 12 shows by way of example this intervention, wherein in Fig. 12 a partial section XII - XII Fig. 11 is shown, which runs in the parting plane of the guide plate 68 and the holding plate 69.
- Fig. 11 It can be seen that the hydraulic cylinder 4 is mounted on the support plate 2 in the orientation rotated by 180 °. For this purpose, it is screwed with its external thread 10 in the support plate 2. As mentioned above, here also another suitable connection, in particular a quick release, between the hydraulic cylinder 4 and the support plate 2 may be provided. By this rotation of the press rod 6, the print head 8 with the recess 42 of the coupling bridge 40 can be brought into engagement. Upon activation of the hydraulic cylinder 4 whose is in Fig. 11 unrecognizable pressure piston adjusted together with the press rod 6 in the direction of arrow 126, thereby causing a corresponding adjusting movement of the coupling bridge 40 is effected. Is the retaining plate 69 (in Fig. 11 not shown) mounted on the guide plate 68, the wheel hub 115 is pressed together with the wheel bearing 116 in the bearing housing 101 of the axle body 100 by this adjusting movement.
- Fig. 12 shows, as already mentioned above, the starting position before pressing out Fig. 11 in partial section. It can be seen that the wheel bearing 116 is arranged directly in front of the bearing bore 102 of the bearing housing 101.
- the guide plate 68 can be attached to the bearing housing together with the holding plate 69 and the received wheel hub 115 with the wheel bearing 116 by hand.
- the wheel bearing 116 remains in its position on the bearing housing 101 position.
- Fig. 12 recognizable that the print head 8 of the press rod 6 is received in the radially enlarged recess 42 of the coupling bridge 40. Also are in Fig. 12 the two bearing lugs 111 and 112 of the axle body 100 can be seen, on which the two support rods 17 and 18 are fixedly mounted by means of the fastening screws 29. Furthermore, the support rods 17 and 18 are fixedly mounted on the support plate 2 via the mounting screws 26. Also is off Fig. 12 recognizable that the hydraulic cylinder 4 is screwed via its coupling thread 10 directly into the internal thread 3 of the support plate 2.
- This device according to the invention can advantageously be used in cases in which no pull or push rod can be inserted through the wheel hub 115 or through the wheel bearing 116.
- the support rods 17, 18 and 19 are provided in particular in an advantageous manner, via which the support plate 2 axially fixed on the axle can be fixed, as this particular Fig. 7 is recognizable. Due to this configuration, it is possible in a simple manner via the pressure plate 65 consisting of the guide plate 68 and the holding plate 69, the Remove wheel hub 115 together with the wheel bearing 116 from the bearing housing 101 of the axle body 100 and also press again.
- a recessed arrangement of the wheel bearing 116 in the bearing housing 101 can be achieved. If a countersunk arrangement is not provided, a guide plate and a holding plate can also be provided which have a flat support flange 84 or 85 without the axially projecting support webs 88 and 89, respectively.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Braking Arrangements (AREA)
- Automatic Assembly (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Ausziehen und Einpressen eines in einer Lagerbohrung eines Lagergehäuses eines Achskörpers aufnehmbaren Radlagers, gemäß dem Oberbegriff des Patentanspruchs 1..The invention relates to a device for extracting and pressing a receivable in a bearing bore of a bearing housing of an axle body wheel bearing, according to the preamble of patent claim 1 ..
Vorrichtungen zum Ausziehen und/oder Einpressen von Radlagern sind schon seit langem bekannt. Als Beispiel seien hier die Druckschriften
All diesen Vorrichtungen der genannten Druckschriften ist gemeinsam, daß diese mehrere unterschiedlich gestaltete Druckplatten oder Zentrierscheiben aufweisen, um unterschiedliche Montage- und/oder Demontagevorgänge an unterschiedlich gestalteten Achskörpern zum Austauschen von Radflanschnaben und/oder Radlagern vornehmen zu können. Insoweit wird auf die genannten Druckschriften verwiesen.All these devices of the cited documents have in common that they have several differently shaped printing plates or centering to make different assembly and / or disassembly operations on differently shaped axle bodies for exchanging Radflanschnaben and / or wheel bearings. In that regard, reference is made to the cited documents.
Zur Montage und Demontage ist es beispielsweise aus
Insbesondere zum Austauschen der Radflanschnabe zeigt beispielsweise die
Beim herkömmlichen Aufbau solcher Achsbauteile mit Radflanschnaben und Radlagern ist in der Regel vorgesehen, daß außenseitig auf dem Radflansch eine Bremsscheibe angeordnet ist, welche demzufolge im fertig montierten Zustand zwischen dem Radflansch und dem später zu montierenden Rad eines Kraftfahrzeuges liegt. Des Weiteren sind solche Achsbauteile mit radial vorstehenden Montageaugen für einen Bremssattel versehen, an welchen ein Bremssattel im Umfangsbereich der Bremsscheibe feststehend montierbar ist.In the conventional construction of such axle components with Radflanschnaben and wheel bearings is usually provided that the outside of the wheel flange, a brake disc is arranged, which is therefore in the assembled state between the wheel flange and the wheel to be mounted later of a motor vehicle. Furthermore, such axle components are provided with radially projecting mounting eyes for a brake caliper to which a caliper in the peripheral region of the brake disc is fixedly mounted.
Aus der
Dazu weist diese Vorrichtung eine Stützplatte auf, die im Abstand zum Achskörper auf der dem Radflansch axial gegenüberliegenden Seite des Achskörpers mit den Montageaugen oder den Lageraugen feststehend und lösbar verbindbar ist. Weiter ist die Stützplatte mit einem Stützelement versehen, mit welchem die Stützplatte mit einem Lenkhebel oder einem anderen, radial vorstehenden Bauteil des Achskörpers feststehend in Eingriff bringbar ist. Diese Stützplatte dient als Widerlager für eine Pressvorrichtung, welche aus einem Hydraulikzylinder gebildet wird. Dieser Hydraulikzylinder ist über Zugbolzen mit dem Radnabenflansch feststehend verbindbar. Zum Ausziehen und zum Einpressen weist der Hydraulikzylinder eine Pressstange auf, welche beim Pressvorgang die Radnabe axial durchragt und sich an der Stützplatte axial abstützt.For this purpose, this device has a support plate which is stationary and releasably connectable at the distance to the axle body on the wheel flange axially opposite side of the axle body with the mounting eyes or the bearing eyes. Further, the support plate is provided with a support member, with which the support plate with a steering lever or another, radially projecting component of the axle body is fixedly engageable engaged. This support plate serves as an abutment for a pressing device, which is formed from a hydraulic cylinder. This hydraulic cylinder is fixedly connected via tie bolts with the hub flange. To pull out and to press in, the hydraulic cylinder on a press rod, which axially projects through the wheel hub during pressing and axially supported on the support plate.
Mit den genannten Vorrichtungen ist somit die Durchführung von Reparaturarbeiten bei Achskonstruktionen nicht durchführbar, bei welchen die Radnabe oder das Radlager geschlossen sind. Bei solchen Achskonstruktionen ist demzufolge die Pressstange eines Hydraulikzylinders oder eine Zugspindel nicht durch die Radnabe hindurch führbar, so dass diese nicht entsprechend axial auf der gegenüberliegenden Seite des Radlagers abgestützt werden kann. Insbesondere wäre das Einpressen des Radlagers in das Lagergehäuse nur durch direkten Druck auf die Radnabe möglich, sofern die bekannten Vorrichtungen überhaupt am Achskörper angesetzt werden könnten, wodurch die Gefahr einer Beschädigung des Radlagers bestünde.With the above devices, the implementation of repair work on axle structures is thus not feasible, in which the wheel hub or the wheel bearing are closed. Consequently, in such axle designs, the press rod of a hydraulic cylinder or a pull spindle can not be guided through the wheel hub, so that it can not be supported correspondingly axially on the opposite side of the wheel bearing. In particular, the press-fitting of the wheel bearing into the bearing housing would be possible only by direct pressure on the wheel hub, provided that the known devices could ever be attached to the axle body, whereby the risk of damage to the wheel bearing would exist.
Demzufolge liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der gattungsgemäßen Art derart auszugestalten, dass das Austauschen von geschlossenen Radflanschnaben und/oder geschlossenen Radlagern einfach und sicher durchführbar ist.Accordingly, the invention has the object, a device of the generic type such that the replacement of closed Radflanschnaben and / or closed wheel bearings is easy and safe to carry out.
Die Aufgabe wird erfindungsgemäß durch die Kombination der Merkmale des Anspruchs 1 gelöst.The object is achieved by the combination of the features of claim 1.
Durch die erfindungsgemäße Ausgestaltung wird eine Vorrichtung zur Verfügung gestellt, mit welcher es in einfacher und sicherer Weise möglich ist, geschlossene Radnaben oder auch geschlossenen Radlager auszutauschen. Die Führungsplatte kann dabei U-förmig ausgebildet sein, wobei sich der Stützflansch über etwa 180° erstreckt und über diesen Winkelbereich einerseits rückseitig mit dem Radnabenflansch und andererseits mit dem äußeren Lagerring des Radlagers in Eingriff bringbar ist.The inventive design, a device is provided with which it is possible in a simple and safe way to replace closed hubs or closed wheel bearings. The guide plate can be U-shaped, wherein the support flange extends over approximately 180 ° and can be brought over this angular range, on the one hand, on the rear side with the wheel hub flange and on the other hand with the outer bearing ring of the wheel bearing.
Dazu ist die Aussparung der Pressplatte bzw. der Führungsplatte mit ihrem Stützflansch in ihren radialen Abmessungen derart ausgebildet, dass der Stützflansch im zwischen der Radnabe und dem Lagergehäuse eingesetzten Zustand radial nach innen bis zum "Außenring" des Radlagers reicht. Damit kann er insbesondere zum Einpressen des Radlagers direkt mit dem Radlager in Druckkontakt gebracht werden, so dass das Radlager ohne jegliche Beschädigung in das Lagergehäuse eingepresst werden kann. Das Ausziehen erfolgt durch direkten Zug der Pressplatte bzw. Führungsplatte mit ihrem Stützflansch bzw. der Führungsplatte selbst, je nach Ausgestaltung der Radnabe, am radial vorstehenden Radnabenflansch.For this purpose, the recess of the pressure plate or the guide plate is formed with its support flange in their radial dimensions such that the support flange in the inserted between the hub and the bearing housing state extends radially inwardly to the "outer ring" of the wheel bearing. Thus, it can be brought into pressure contact, in particular for pressing the wheel bearing directly to the wheel bearing, so that the wheel bearing can be pressed without any damage in the bearing housing. The extraction takes place by direct train of the pressure plate or guide plate with its support flange or the guide plate itself, depending on the design of the wheel hub, on the radially projecting hub flange.
Gemäß Anspruch 2 kann vorgesehen sein, dass der Stützflansch der Führungsplatte im Bereich seiner radialen Innenkante mit einem axial vorstehenden Stützsteg versehen ist, mit welchem das Radlager versenkt in das Lagergehäuse einpressbar ist. Dabei ist die Dicke des Stützflansches mit seinem Stützsteges an die lichte Weite des Zwischenraumes zwischen dem Radnabenflansch und dem Lagergehäuses derart angepasst, dass nach dem Einpressen des Radlagers die Führungsplatte mit ihrem Stützflansch entgegen der Einpressrichtung in Richtung des Radnabenflansches bewegt werden und aus dem Zwischenraum herausgenommen werden kann.According to
Zur Erhöhung der Stabilität der Pressplatte kann der Führungsplatte gemäß Anspruch 3 eine Halteplatte zugeordnet sein, welche an der Führungsplatte abnehmbar befestigt ist. Diese Halteplatte weist dabei ebenfalls eine etwa halbkreisförmige Aussparung auf, welche durch einen Stützflansch radial begrenzt ist. Mit dem Stützflansch ist die Halteplatte in den Zwischenraum zwischen dem Radnabenflansch der Radnabe und dem Lagergehäuse des Achskörpers derart einschiebbar ist, dass sich der Stützflansch beim Ausziehvorgang rückseitig am Radnabenflansch und beim Einpressvorgang am Radlager axial abstützt. D.h. im Betrieb wird die Radnabe vor der Führungsplatte und der Halteplatte vollständig aufgenommen. Zum Einpressen des Radlagers wird die Radnabe mit dem auf der Radflanschnabe zunächst mit der Führungsplatte in Eingriff gebracht, so dass die Führungsplatte mit ihrem Stützflansch zwischen dem äußeren Lagerring des Radlagers und dem Radnabenflansch angeordnet ist. Anschließend wird die Halteplatte feststehend mit der Führungsplatte, beispielsweise durch Schraubverbindungen, verbunden, so dass auch die Halteplatte mit ihrem Stützflansch zwischen den äußeren Lagering des Radlagers und den Radnabenflansch gelangt. Beim einpressen sind so äußerst hohe Presskräfte auf den Lagerring konzentrisch aufbringbar, so dass ein Verkanten oder dgl. des Radlagers beim Einpressen sicher ausgeschlossen ist.To increase the stability of the press plate, the guide plate according to
Gemäß Anspruch 4 kann auch der Stützflansch der Halteplatte im Bereich seiner radialen Innenkante mit einem axial vorstehenden Stützsteg versehen sein, so dass auch mit der Halteplatte das Radlager versenkt in das Lagergehäuse eingepresst werden kann. Die Ausgestaltung des Stützsteges entspricht dabei der Ausgestaltung der Stützsteges der Führungsplatte.According to
Zum Aufbringe der notwendigen Zugkräfte bzw. Presskräfte ist erfindungsgemäß des Weiteren gemäß Anspruch 5 vorgesehen, dass die Presseinrichtung eine Stützplatte aufweist, welche über Stützstangen feststehend an den Lageraugen des Achskörper befestigbar ist und, dass die Presseinrichtung eine axial zur Stützplatte verstellbare Pressstange aufweist, welche mit der Pressplatte axial feststehend koppelbar ist. Bei Aktivierung der Presseinrichtung bewegt sich die Pressplatte relativ zur Presseinrichtung bzw. relativ zur Stützplatte und damit auch relativ zum Achskörper in axialer Richtung, so dass je nach Aktivierungsrichtung der Presseinrichtung über die Pressplatte wahlweise am Radnabenflansch gezogen oder auf das Radlager gedrückt werden kann. Durch diese Ausgestaltung ist die erfindungsgemäße Vorrichtung auch direkt am Fahrzeug einsetzbar. Ist ein solcher Einsatz am Fahrzeug nicht gewünscht, so kann die Pressplatte auch in Verbindung mit einer ortsfesten Presse eingesetzt werden, welche entsprechend am Achskörper ansetzbar ist.To apply the necessary tensile forces or pressing forces according to the invention further provided according to
Weitere vorteilhafte Ausgestaltungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments of the invention can be found in the further subclaims.
So kann gemäß Anspruch 6 vorgesehen sein, dass zur Axialverstellung der Pressplatte eine Kupplungsbrücke vorgesehen ist, welche während des Pressvorganges axial feststehend mit der Pressstange gekoppelt ist. Diese Kupplungsbrücke bewegt sich folglich mit der Pressstange mit, so dass zwangsläufig auch die Pressplatte in die eine oder andere Zug- oder Pressrichtung bewegt wird. Diese Kupplungsbrücke kann dabei in einer einfachen Form etwa balkenartig ausgebildet sein, wobei deren Länge größer ist als der Durchmesser des Radnabenflansches, so dass die Kupplungsbrücke in einfacher Weise mit der beim Pressvorgang "hinter" dem Radnabenflansch angeordneten Pressplatte mechanisch koppelbar ist. Die Pressplatte überragt dabei den Radnabenflansch zumindest bereichsweise in radialer Richtung. Anstatt balkenförmig kann die Kupplungsbrücke auch plattenförmig oder in einer anderen geeigneten Form ausgebildet sein.Thus, it can be provided according to
Gemäß Anspruch 7 kann vorgesehen sein, dass die Pressstange Teil eines Hydraulikzylinders ist, welcher axial feststehend mit der Stützplatte auswechselbar in eingriff steht und, dass die Pressstange ein Stellgewinde aufweist, über welches die Pressstange in einem axial verstellbaren Presskolben des Hydraulikzylinders axial verstellbar aufgenommen ist. Durch diese Ausgestaltung sind äußerst hohe Presskräfte mit der erfindungsgemäßen Vorrichtung aufbringbar. Weiter ist die Presseinrichtung durch die axiale Verstellbarkeit der Pressstange im Presskolben des Hydraulikzylinders an unterschiedliche Dimensionen des Achskörpers anpassbar.According to
Durch die Ausgestaltung gemäßen Anspruch 8 ist die Pressstange äußerst einfach mit der Kupplungsbrücke koppelbar. Dazu ist vorgesehen, dass die Pressstange zum Auspressen der Radnabe zusammen mit dem Radlager mit ihrem Stellgewinde mit Kupplungsbrücke in Zugverbindung bringbar ist. Für diese Zugverbindung kann die Kupplungsbrücke selbst mit einem Innengewinde versehen sein, in welches das Stellgewinde der Pressstange einschraubbar ist. Andererseits kann auch vorgesehen sein, dass die Presstange durch eine entsprechende Durchgangsbohrung der Kupplungsbrücke hindurch gestellt wird und "rückseitig" eine Zugmutter auf das Stellgewinde aufgeschraubt wird.Due to the design according to
Ist ein Innengewinde vorgesehen, so kann gemäß Anspruch 9 vorgesehen sein, dass dieses Innengewinde der Kupplungsbrücke zur Herstellung der Zugverbindung Teil einer Zughülse ist, welche in einer Einsenkung der Kupplungsbrücke angeordnet ist und sich während des Auspressvorganges axial an einer inneren Stirnringwand der Einsenkung abstützt. Durch diese Ausgestaltung ist ein Einschrauben der Pressstange in das Innengewinde äußerst einfach durchführbar, ohne dass eine zusätzliche Axialverstellung des Presskolbens erforderlich ist.If an internal thread is provided, it can be provided according to
Dazu kann gemäß Anspruch 10 weiter vorgesehen sein, dass die Zughülse über radial in die Einsenkung der Kupplungsbrücke hinein ragende Kupplungszapfen axial verstellbar und unverdrehbar gehalten ist und, dass die Kupplungszapfen in Stellschlitze der Zughülse radial eingreifen. Durch die axiale Verstellbarkeit ist die Zughülse mit den Gewindegängen ihres Innengewinden auf die Gewindegänge des Stellgewindes der Pressstange einstellbar.For this purpose may be further provided according to
Durch die gemäß Anspruch 11 vorgesehene Axialdruckfeder wird bei der Axialverstellung der Pressstange mit ihrem Stellgewinde eine automatische axiale Ausrichtung der Gewindegänge des Innengewindes der Zughülse auf die Gewindegänge der Pressstange erreicht. Dabei stützt sich die Axialdruckfeder axial an einem im Bereich der Einsenkung außenseitig auf die Kupplungsbrücke abnehmbar aufgeschraubten Verschlussdeckel axial ab.By provided in accordance with
Durch den gemäß Anspruch 12 in Endbereich der Pressstange vorgesehenen Druckkopf aufweist, ist die Pressstange mit der Kupplungsbrücke zum Einpressen des Radlagers in einfacher Weise in Druckverbindung bringbar.By having according to claim 12 provided in the end region of the press rod printhead, the press rod with the coupling bridge for pressing the wheel bearing in a simple manner can be brought into pressure connection.
Dieser Druckkopf kann gemäß Anspruch 13 mit einem Außensechskant versehen sein, so dass die Pressstange in einfacher Weise axial im Presskolben des Hydraulikzylinders verstellbar ist.This printhead can be provided with an external hexagon according to
Zur feststehenden Kopplung der aus der Führungsplatte und der Halteplatte bestehenden Pressplatte mit der Kupplungsbrücke sind gemäß Anspruch 14 Distanzhülsen sowie Verbindungsschrauben vorgesehen. Dabei sind die Führungsplatte und die Halteplatte in ihrem an der Radnabe angesetzten Zustand vorzugsweise miteinander verschraubt.For fixed coupling of the existing of the guide plate and the holding plate pressing plate with the coupling bridge spacers and connecting screws are provided according to
Durch die Ausgestaltung gemäß Anspruch 15 wird das Ansetzen der Radnabe zusammen mit dem Radlager zum Einpressen erheblich vereinfacht. Dazu ist vorgesehen, dass die Pressplatte mit zwei Führungsbohrungen versehen ist, über welche die Pressplatte konzentrisch zum Lagergehäuse und zur Radnabe an zwei der Stützstangen axial verstellbar geführt ist. Zur Montage wird die Radnabe in die Führungsplatte eingesetzt und gegen das Lagergehäuse verschoben, bis das auf der Radflanschnabe sitzende Radlager mit der Lagerbohrung des Lagergehäuses in Kontakt steht. Anschließend oder vorab kann die Halteplatte an der Radnabe angesetzt und mit der Führungsplatte verschraubt werden. Aufgrund dieser Führung der Führungsplatte an den mit dem Achskörper feststehend verbundenen Stützstangen wird somit die Radnabe zusammen mit dem Radlager automatisch konzentrisch zur Lagerbohrung ausgerichtet, so dass ein Verkanten beim nachfolgenden Einpressvorgang sicher ausgeschlossen ist.Due to the embodiment according to
Durch die Ausgestaltung gemäß Anspruch 14 wird eine kostengünstige Presseinrichtung mit geringem Gewicht zur Verfügung gestellt, wodurch die Handhabung erheblich erleichtert wird. Dazu ist vorgesehen, dass der Hydraulikzylinder als einfach wirkender Hohlkolbenzylinder ausgebildet und an seinen beiden axialen Enden mit Kupplungselementen versehen ist, mit welchen der Hydraulikzylinder zum wahlweisen Aufbringen von Zug- oder Druckkräften mit der Stützplatte in unterschiedlichen Orientierungen in Eingriff bringbar ist.Due to the configuration according to claim 14 a cost-effective pressing device is provided with low weight, whereby the handling is greatly facilitated. For this purpose, it is provided that the hydraulic cylinder is designed as a single-acting hollow piston cylinder and is provided at its two axial ends with coupling elements, with which the hydraulic cylinder for selectively applying tensile or compressive forces to the support plate in different orientations into engagement can be brought.
Als Kupplungselemente können hier Kupplungsgewinde oder auch Schnellverschlüsse vorgesehen sein. Bei einem solchen Schnellverschluss kann es sich um einen in eine entsprechende Aufnahmebohrung der Stützplatte einsetzbaren Kupplungszylinder handeln, welcher über quer verlaufende Steckzapfen oder über rückseitig in eine Radialnut des Kupplungszylinders einsetzbare U-förmige Sicherungsbleche in der Aufnahmebohrung gesichert ist.As coupling elements here coupling thread or snap closures can be provided. In such a quick release may be a usable in a corresponding receiving bore of the support plate clutch cylinder, which is secured via transverse spigot or on the back in a radial groove of the clutch cylinder usable U-shaped locking plates in the receiving bore.
Die erfindungsgemäße Vorrichtung ist zum Ausziehen und zum Einpressen von Radlagern geeignet, die über herkömmliche Sicherungsringe oder auch über einen sogenannten Sperrkranz oder Sicherungskranz im Lagergehäuse gesichert sind. Ein Sperrkranz oder Sicherungskranz ist dabei auf den Außenring des Lager festsitzend aufgepresst und greift mit radial federelastisch vorstehenden Sicherungszungen in eine umlaufende Nut der Lagerbohrung des Lagergehäuses ein. Solche Sicherungs- oder Sperrkränze kommen in neuerer Zeit zum Einsatz, da hier eine vollautomatische Fließbandmontage der Radnabe zusammen mit dem Radlager im Lagergehäuse ermöglicht wird.The device according to the invention is suitable for pulling and pressing wheel bearings, which are secured by means of conventional securing rings or else via a so-called locking collar or securing ring in the bearing housing. A ratchet or safety ring is pressed tightly onto the outer ring of the bearing and engages with radially resilient protruding securing tongues in a circumferential groove of the bearing bore of the bearing housing. Such backup or locking rings are used in recent times, since a fully automatic assembly line assembly of the wheel hub is made possible together with the wheel bearing in the bearing housing.
Anhand der Zeichnung wird nachfolgend ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigt:
- Fig. 1
- eine perspektivische Explosionsdarstellung einer Presseinrichtung der erfindungsgemäßen Vorrichtung;
- Fig. 2
- eine perspektivische Explosionsdarstellung einer Kupplungsvorrichtung zusammen mit einer Pressplatte;
- Fig. 3
- eine perspektivische Explosionsdarstellung eines Achskörpers zusammen mit einer Radnabe und einem Radlager;
- Fig. 4
- eine Seitenansicht IV des Achskörpers mit montierter Radnabe;
- Fig. 5
- eine perspektivische Darstellung des Achskörpers mit montierter Radnabe und der Pressplatte aus
Fig. 2 ; - Fig. 6
- die Darstellung aus
Fig. 5 mit der zwischen der Radnabe und dem Achskörper angeordneten Pressplatte; - Fig. 7
- eine perspektivische Darstellung eines Achskörper mit daran montierter Presseinrichtung sowie einer mit der Radnabe in Eingriff stehender Pressplatte;
- Fig. 8
- einen perspektivischen Aufbruch eines Teils der Presseinrichtung sowie einer mit der Pressplatte gekoppelten Kupplungsbrücke;
- Fig. 9
- einen Querschnitt durch die Kupplungsbrücke, in welche eine Zughülse axial verstellbar eingesetzt ist;
- Fig. 10
- eine perspektivische Darstellung der kompletten am Achskörper und an der Radnabe angesetzten erfindungsgemäßen Vorrichtung unmittelbar nach dem Auspressen des Radlagers;
- Fig. 11
- eine perspektivische Darstellung der am Achskörper angesetzten Pressvorrichtung zusammen mit der an der Radnabe angesetzten Führungsplatte vor dem Einpressvorgang;
- Fig. 12
- einen Schnitt XII - XII auf
Fig. 11 der erfindungsgemäßen Vorrichtung unmittelbar vor dem Einpressvorgang; - Fig. 13
- die Schnittdarstellung aus
Fig. 12 nach dem vollständigen Einpressen des Radlagers in das Lagergehäuse des Achskörpers.
- Fig. 1
- an exploded perspective view of a pressing device of the device according to the invention;
- Fig. 2
- an exploded perspective view of a coupling device together with a pressure plate;
- Fig. 3
- an exploded perspective view of an axle body together with a wheel hub and a wheel bearing;
- Fig. 4
- a side view IV of the axle body with mounted wheel hub;
- Fig. 5
- a perspective view of the axle body with mounted wheel hub and the press plate
Fig. 2 ; - Fig. 6
- the presentation
Fig. 5 with the pressure plate arranged between the wheel hub and the axle body; - Fig. 7
- a perspective view of an axle body mounted thereon with pressing device and a standing with the wheel engaging pressure plate;
- Fig. 8
- a perspective break-up of a part of the pressing device as well as a coupling bridge coupled to the pressing plate;
- Fig. 9
- a cross section through the coupling bridge, in which a pulling sleeve is inserted axially adjustable;
- Fig. 10
- a perspective view of the complete attached to the axle and the wheel hub device according to the invention immediately after the pressing out of the wheel bearing;
- Fig. 11
- a perspective view of the attached to the axle body pressing device together with the attached to the wheel guide plate before the press-fitting;
- Fig. 12
- a section XII - XII on
Fig. 11 the device according to the invention immediately before the press-fitting process; - Fig. 13
- the sectional view
Fig. 12 after completely pressing the wheel bearing into the bearing housing of the axle body.
Zur Kopplung des Hydraulikzylinders 4 mit der Stützplatte 2 weist dieser in seinen beiden Endbereichen beispielsweise jeweils ein Kupplungsgewinde 9 bzw. 10 auf.For coupling the
Anstatt solcher Kupplungsgewinde können als Kupplungselemente auch Kupplungszylinder als Schnellverschluss vorgesehen sein, welche in eine entsprechende Aufnahmebohrung der Stützplatte einsetzbar sind. Zur Sicherung des Kupplungszylinders in der Aufnahmebohrung können radial oder tangential zum Kupplungszylinder verlaufende in die Aufnahmebohrung hinein ragende Sicherungszapfen vorgesehen sein. Auch kann der Kupplungszylinder im eingesetzten zustand die Aufnahmebohrung vollständig durchragen und mit einer umlaufenden Nut versehen sein, in welche beispielsweise ein U-förmiges Sicherungsblech zur Arretierung des Kupplungszylinders einschiebbar ist. Diese Ausführungsvarianten sind in der Zeichnung nicht dargestellt.Instead of such a coupling thread can also be provided as a quick release coupling cylinder as coupling elements, which can be used in a corresponding receiving bore of the support plate. To secure the clutch cylinder in the receiving bore may be provided radially or tangentially to the coupling cylinder extending into the receiving bore into projecting securing pin. Also, the clutch cylinder in the inserted state, the receiving bore completely protrude and be provided with a circumferential groove, in which, for example, a U-shaped locking plate for locking the clutch cylinder can be inserted. These embodiments are not shown in the drawing.
Da beim vorliegenden Ausführungsbeispiel das hintere Kupplungsgewinde 9 im Durchmesser kleiner ausgebildet ist als das Innengewinde 3 der Stützplatte 2, ist zur Kopplung des Kupplungsgewindes 9 des Hydraulikzylinders 4 mit dem Innengewinde 3 der Stützplatte 2 ein Adapterstück 11 vorgesehen, welches ein Außengewinde 12 aufweist, mit welchem das Adapterstück 11 in das Innengewinde 3 der Stützplatte 2 einschraubbar ist. Zur Begrenzung der Einschraubtiefe weist das Adapterstück 11 in seinem vorderen Endbereich einen radial erweiterten Anschlagbund 13 auf. Zum Einschrauben des Kupplungsgewindes 9 des Hydraulikzylinders 4 ist das Adapterstück 11 mit einem entsprechenden Innengewinde 14 versehen.Since in the present embodiment, the
Es ist leicht vorstellbar, dass der Hydraulikzylinder 4 über das Adapterstück 11 feststehend und auswechselbar mit der Stützplatte 2 in Eingriff bringbar ist. Dabei ist der als Hohlkolbenzylinder ausgebildete Hydraulikzylinder 4 einseitig wirkend, so dass bei dessen Aktivierung der Presskolben 5 bei der in
Die Pressstange 6 ist beim vorliegenden Ausführungsbeispiel als Gewindestange ausgebildet und weist dementsprechend ein Stellgewinde 16 auf, über welches die Pressstange 6 variabel relativ zum Presskolben 5 axial verstellbar ist. Das Stellgewinde 16 erstreckt sich beim vorliegenden Ausführungsbeispiel der Pressstange 6 über deren gesamte axiale Länge zwischen dem Antriebssechskant 7 sowie dem radial erweiterten Druckkopf 8.The
Aus
Alternativ zu dieser Ausgestaltung können die Stützstangen auch mit axial vorstehenden Gewindezapfen versehen sein, welche durch die Durchgangsbohrungen 23, 24 und 25 der Stützplatte 2 hindurch steckbar und über entsprechende Montagemuttern befestigbar an der Stützplatte 2 sind.As an alternative to this embodiment, the support rods may also be provided with axially projecting threaded pins, which can be inserted through the through
Des Weiteren ist erkennbar, dass die beiden zylindrisch ausgebildeten Stützstangen 17 und 18 in ihrem, den Innengewinden 20 und 21 gegenüberliegenden Endbereich stirnseitig jeweils mit einem zweiten Innengewinde 27 bzw. 28 versehen sind, in welche jeweils eine Befestigungsschraube 29 einschraubbar ist. Über diese Innengewinde 27 und 28 sowie die Befestigungsschrauben 29 sind die beiden Stützstangen 17 und 18 jeweils mit dem Montageflansch eines Achskörpers feststehend verbindbar. Dies wird weiter unten noch näher erläutert.Furthermore, it can be seen that the two cylindrically shaped
Auch hier können alternativ axial vorstehende Gewindezapfen vorgesehen sein, die entweder in entsprechende Gewinde der Lageraugen eines Achskörpers einschraubbar oder über Montagemuttern an den Lageraugen befestigbar sind.Here as well, axially projecting threaded pins can alternatively be provided, which can either be screwed into corresponding threads of the bearing eyes of an axle body or can be fastened to the bearing eyes via mounting nuts.
Die dritte Stützstange 19 ist in ihrem, dem Innengewinde 22 gegenüberliegenden Endbereich, mit einem Montagekopf 30 versehen, welcher beim vorliegenden Ausführungsbeispiel zwei parallel zueinander verlaufende Montageflächen 31 bzw. 32 aufweist. Je nach Ausrichtung der Stützstange 19 ist diese mit ihrem Montagekopf 30 wahlweise mit einer seiner beiden Montageflächen 31 oder 32 beispielsweise auf dem Lagerauge eines Lenkhebels eines Achskörpers ansetzbar, wie weiter unten noch näher erläutert wird.The
Zur feststehenden Montage des Montagekopfes 30 an diesem Lagerauge des Lenkhebels ist beim vorliegenden Ausführungsbeispiel eine Halteschraube 33 vorgesehen, welche durch das Lagerauge des Lenkhebels hindurch steckbar und zum Einschrauben in ein Innengewinde 34 des Montagekopfes 30 mit einem entsprechenden Gewindezapfen 35 versehen ist. Dabei weist die Halteschraube 33 in ihrem, dem Gewindezapfen 35 gegenüberliegenden Endbereich, einen radial erweiterten Zylinderabschnitt 36 auf, welcher zum manuellen Eindrehen der Halteschraube 33 in das Innengewinde 34 des Montagekopfes 30 dient. Um die Halteschraube 33 fest anziehen zu können, ist in axialer Verlängerung zum Zylinderabschnitt 36 ein Antriebssechskant 37 vorgesehen, über welchen die Halteschraube 33 mittels eines geeigneten Schlüsselwerkzeuges angezogen werden kann.For fixed mounting of the mounting
Die Pressstange 6 ist wahlweise, je nach Orientierung des Hydraulikzylinders 4, mit einer Kupplungsbrücke 40 in Zug- oder Druckverbindung bringbar. Diese Kupplungsbrücke 40 ist aus
Weiter ist aus
Diese Zughülse 44 ist mit geringem Spiel und axial verstellbar in die Einsenkung 43 einsetzbar. Zur Kopplung mit dem Stellgewinde 16 der Pressstange 6 weist die Zughülse 44 ein entsprechendes Innengewinde 45 auf. Zur unverdrehbaren Halterung der Zughülse 44 in der Einsenkung 43 sind beim vorliegenden Ausführungsbeispiel zwei Madenschrauben 46 vorgesehen, welche durch entsprechende, in die Einsenkung 43 mündende, radial zur Einsenkung 43 verlaufenden Durchgangsgewinde 47 einschraubbar sind.This
Die Madenschrauben 46 weisen jeweils einen Kupplungszapfen 48 auf, mit welchem die Madenschrauben 46 in entsprechend in der Zughülse 44 angeordnete Längsschlitze 49 in Eingriff bringbar sind. Diese Längsschlitze 49 sind in ihrer axialen Ausdehnung begrenzt und begrenzen somit den axial maximal möglichen Stellweg der Zughülse 44 in der Einsenkung 43. Zur Halterung der Zughülse 44 in der Einsenkung 43 ist ein mit einer Durchgangsbohrung 50 versehener Verschlussdeckel 51 vorgesehen.The grub screws 46 each have a
Die Durchgangsbohrung 50 dient im Betrieb zur Durchführung der Druckstange 6 mit ihrem Antriebssechskant 7 in ihrem die Zughülse 44 eingeschraubten Zustand. Um die Zughülse 44 gegen die innere Stirnringwand 52 der Einsenkung 43 federelastisch nachgiebig zu drücken, ist eine entsprechende Axialdruckfeder 53 vorgesehen. Durch diese federelastisch axial verschiebbare und unverdrehbare Lagerung der Zughülse 44 in der Einsenkung 43 der Kupplungsbrücke 40 wird ein Einschrauben des Stellgewindes 16 der Pressstange 6 in das Innengewinde 45 der Zughülse 44 in einfacher Weise ermöglicht. Insbesondere muß hierzu aufgrund der axialen Verschiebbarkeit der Zughülse 44 die Pressstange 6 mit ihrem Stellgewinde 16 nicht axial auf die axiale Position der Zughülse 44 mit ihrem Innengewinde 45 eingestellt werden.The through
Zur feststehenden Montage des Verschlussdeckels 51 sind beim vorliegenden Ausführungsbeispiel zwei Montageschrauben 54 vorgesehen, welche durch zwei Durchgangsbohrungen 55 des Verschlussdeckels 51 hindurch steckbar und entsprechend in zwei Innengewinde 56 der Kupplungsbrücke 40 einschraubbar sind.For fixed mounting of the
Wie aus
Mittels dieser Verbindungsschrauben 61 und 62 ist eine Pressplatte 65 feststehend mit der Kupplungsbrücke 40 verbindbar. Zur Festlegung eines definierten axialen Abstandes der Pressplatte 65 zur Kupplungsbrücke 40 sind beim vorliegenden Ausführungsbeispiel zwei Distanzhülsen 66 und 67 vorgesehen, durch welche die beiden Verbindungsschrauben 61 und 62 hindurch steckbar sind.By means of these connecting
Anstatt dieser beispielhaft dargestellten Kupplungsbrücke 40 kann auch eine plattenförmige oder auch anders geartete Kupplungseinrichtung vorgesehen sein, welche zwischen den Stützstangen 17, 18 und 19 Platz findet und eine Kopplung der Pressstange 6 mit der Pressplatte 65 ermöglicht.Instead of this exemplified
Die Pressplatte 65 besteht beim vorliegenden Ausführungsbeispiel aus einer Führungsplatte 68 und einer mit dieser lösbar verbindbaren Halteplatte 69. Zur lösbaren Verbindung der Führungsplatte 68 und der Halteplatte 69 sind beim vorliegenden Ausführungsbeispiel zwei Verbindungsschrauben 70 und 71 vorgesehen, welche durch entsprechende Durchgangsbohrungen 72 und 73 der Halteplatte 69 hindurch steckbar und in zwei entsprechend zugeordnete Innengewinde 74 bzw. 75 der Führungsplatte 68 einschraubbar sind, wie dies in
Zur Befestigung der Kupplungsbrücke 40 über die beiden Verbindungsschrauben 61 und 62 weisen die Führungsplatte 68 und die Halteplatte 69 jeweils ein entsprechendes Innengewinde 76 bzw. 77 auf.For fastening the
Des Weiteren ist aus
Des Weiteren ist aus
Beim vorliegenden Ausführungsbeispiel bilden die radialen Umgebungsbereiche der beiden halbkreisförmigen oder U-förmigen Aussparungen 80 und 81 eine Art Stützflansch 84 bzw. 85, welche jeweils im radial inneren Bereich mit einem axial zur jeweils vorderen Stirnfläche 86 bzw. 87 der Führungsplatte 68 bzw. der Halteplatte 69 vorstehenden, kreisringförmigen Stützsteg 88 bzw. 89 versehen sind. Dementsprechend schließen sich radial nach außen an die beiden Stützstege 88 und 89 kreisbogenförmig verlaufende Vertiefungen 90 bzw. 91 an.In the present embodiment, the radial surrounding regions of the two semicircular or
Im Betrieb, d.h. im zwischen einer Radnabe und dem auf der Radnabe angeordneten Radlager angesetzten Zustand der Führungsplatte 68 und der Halteplatte 69 stützen sich die beiden Stützstege 88 und 89 axial am äußeren Lagerring eines Radlagers ab. Durch die zurückversetzte Anordnung der Vertiefungen 90 und 91 ist somit ein Radlager versenkt in das Lagergehäuse eines Achskörpers einpressbar, bis die Führungsplatte 68 und die Halteplatte 69 mit ihren Vertiefungen 90 und 91 flächig auf der äußeren Stirnringfläche des Lagergehäuses anliegen.During operation, ie in between a wheel hub and the arranged on the wheel hub wheel bearing state of the
Zur definierten Führung der Pressplatte 65 weist die Führungsplatte 68 zwei Durchgangsbohrungen 92 und 93 auf, über welche die Führungsplatte 68 und somit die an der Führungsplatte 68 festsitzend montierte Halteplatte 69 axial verstellbar an den beiden Stützstangen 17 und 18 geführt wird, wie weiter unten noch näher erläutert wird.For defined guidance of the
Weiter ist aus
Des Weiteren ist aus
Mit diesen Montageaugen 111, 112 ist die Presseinrichtung 1 aus
Des Weiteren zeigt
Die Radnabe 115 ist im normalen Betrieb des Kraftfahrzeuges über des Radlager 116 drehbar im Lagergehäuse 101 des Achskörpers 100 gelagert. Dazu ist das Radlager 116 in die Lagerbohrung 102 des Lagergehäuses 101 eingepresst. Einen solchen fertig montierten Zustand der Radnabe 115 im Lagergehäuse 101 des Achskörpers 100 zeigt
Wie aus
Die Besonderheit der Radnabe 115 und des Radlager 116 ist bei diesem Ausführungsbeispiel, dass die Radnabe 115 keine zentrale Durchgangsbohrung aufweist. Des Weiteren ist das Radlager 116 durch einen in der Zeichnung nicht näher dargestellten Verschlußdeckel rückseitig geschlossen. Aufgrund dieser besonderen Ausgestaltung dieser Achskonstruktion ist es nun nicht möglich das Radlager 116 mittels einer die Radnabe 116 durchragenden Zugspindel aus dem Lagergehäuse 101 auszuziehen.The peculiarity of the
Ein Einpressen des Radlagers 116 über die Radnabe 115 ist ebenfalls mit den herkömmlichen Vorrichtungen nicht möglich, da bei diesem Einpressvorgang die Gefahr bestünde, dass das Radlager 116 durch die äußerst hohen axialen Presskräfte beschädigt werden würde. Speziell für dieses Ausziehen bzw. Einpressen ist die erfindungsgemäße Vorrichtung vorgesehen.A pressing of the wheel bearing 116 via the
In den aus
Die Abmessungen sowohl der halbkreisförmigen Aussparung 80 der Führungsplatte 68 sowie der halbkreisförmigen Aussparung 81 der Halteplatte 69 sind dabei so gewählt, dass die Flanschnabe 121 (
Als nächstes wird die Pressplatte 65 mit den Durchgangsbohrungen 92 und 93 um die Drehachse 125 der Radnabe 115 in ihrer Winkelstellung derart eingestellt, dass die Durchgangsbohrung 92 koaxial zum Montageauge 111 und die Durchgangsbohrung 93 koaxial zum Lagerauge 112 des Achskörpers 100 ausgerichtet ist, wie dies aus
Nachdem die aus der Führungsplatte 68 und der Halteplatte 69 bestehende Pressplatte 65 im Zwischenraum 120 zwischen dem Radnabenflansch 117 und der äußeren Stirnringfläche 119 des Lagergehäuses 101 angesetzt ist, wie dies aus
Anschließend kann die Stützstange 19 mit ihrem Montagekopf 30 mit dem Lagerauge 109 des Achskörpers 100 in Verbindung gebracht werden. Dazu wird der Montagekopf 30 beispielsweise mit seiner unteren Montagefläche 32 auf das Lagerauge 109 aufgesetzt und die Halteschraube 33 durch die aus
Nach der festsitzenden Montage der Stützplatte 2 an den drei Stützstangen 17, 18 und 19 kann nun die Halteschraube 33 fest angezogen werden, so dass die Stützstangen 17, 18 und 19 zusammen mit der Stützplatte 2 und dem Achskörper 100 eine feststehende Einheit bilden. Dabei ist die etwa dreieckige Formgebung der Halteplatte 69 derart gewählt, wie dies insbesondere aus
Nachdem nun die Stützplatte 2 feststehend mit den Stützstangen 17, 18 und 19 in Verbindung gebracht wurde, wird nun der Hydraulikzylinder 4 über das Adapterstück 11 mit der Stützplatte 2 in Verbindung gebracht. In der in
D.h., dass bei Aktivierung des Hydraulikzylinders 4 dessen Presskolben 5 in Richtung des Pfeiles 15 bewegt wird. Dabei durchragt die Pressstange 6 mit ihrem Stellgewinde 16 und ihrem Antriebssechskant 7 die Stützplatte 2 zum Radlager 115 hin. Um nun Zugkräfte auf die Pressplatte 65 aufbringen zu können, ist die Kupplungsbrücke 40 mit den Verbindungsschrauben 61 und 62 sowie den beiden Distanzhülsen 66 und 67 aus
Hierzu zeigt
In ihrem in
Durch Drehen der Pressstange 6 über ihren Druckkopf 8 bzw. dessen Außensechskant 38 in Richtung des Pfeiles 126 gelangt die Pressstange 6 mit ihrem Stellgewinde 16 mit dem Innengewinde 45 der in die Kupplungsbrücke 40 eingesetzten Zughülse 44 in Eingriff. Hierbei ist in
Aus
Es ist erkennbar, dass die Längsschlitze 49 derart angeordnet sind und eine derartige axiale Länge aufweisen, dass die Zughülse 44 aus der in
Wird nun die Pressstange 6 mit ihrem Stellgewinde 16 in Richtung des Pfeiles 126 durch die Durchgangsbohrung 41 der Kupplungsbrücke 40 hindurch geschraubt, so gelangt sie nach einem entsprechenden Stellweg mit ihrem Stellgewinde in den axialen Bereich des Innengewindes 45 der Zughülse 44. Da in der Regel die Gewindegänge des Stellgewindes 16 nicht mit den Gewindegängen des Innengewindes 45 in axialer Richtung übereinstimmen, wird nun bei weiterer Zustellbewegung der Pressstange 16 die Zughülse 44 in Richtung des Pfeiles 126 verschoben, bis die Gewindegänge des Stellgewindes 16 der Pressstange 6 mit den Gewindegängen des Innengewindes 45 der Zughülse 44 in axiale Übereinstimmung gelangen. Anschließend wird bei weiterer Drehung der Pressstange 6 in Richtung des Pfeiles 126 das Stellgewinde 16 in das Innengewinde 45 der Zughülse 44 eingeschraubt.Now, if the
Dabei kann vorgesehen sein, dass die Pressstange 6 durch die Zughülse 44, die Axialdruckfeder 53 sowie durch die Durchgangsbohrung 50 des Verschlußdeckels 51 in die in
Damit steht nun die Pressstange 6 über ihr Stellgewinde 16 und der Zughülse 44 mit der Kupplungsbrücke 40 in axialer Zugverbindung, so dass bei weiterer Aktivierung des Hydraulikzylinders 4 die Kupplungsbrücke 40 und damit auch die Pressplatte 65 in Richtung der Pfeiles 15 gezogen wird. Bei dieser Stellbewegung gleitet die Führungsplatte 68 entlang der beiden Stützstangen 17 und 18, wobei bei dieser Stellbewegung in Richtung des Pfeiles 15 gleichzeitig die mit der Pressplatte 65 in Eingriff stehende Radnabe 115 zusammen mit dem in den
Das Ende dieses Ausziehvorganges ist in
Nun sind die beiden Verbindungsschrauben 70 und 71 (in
Nachdem die Halteplatte 69 entfernt wurde, kann nun die Radnabe 115 zusammen mit dem Radlager 116 aus der Führungsplatte 68 entnommen werden. Anschließend wird die Radnabe 115 mit einem neuen Radlager versehen und ist wieder in das Lagergehäuse 101 des Achskörpers 100 mittels der erfindungsgemäßen Vorrichtung einpressbar.After the retaining
Dazu wird zunächst die Radnabe 115 mit dem Radlager 116 mit der Führungsplatte 68 in Eingriff gebracht, wie dies aus
Weiter ist aus
Des Weiteren ist aus
Es ist nun leicht vorstellbar, dass bei Aktivierung des Hydraulikzylinders 4 dessen Presskolben 5 in Richtung des Pfeiles 126 verstellt wird, so dass dadurch über die Führungsplatte 68 und die in
Durch diese Ausgestaltung des Stützsteges 88 bzw. des Stützsteges 89 ist das Radlager 116 versenkt in der Lagerbohrung 102 des Lagergehäuses 101 des Achskörpers 100 einpressbar, wie dies aus
Es wird deutlich, dass das Radlager 116 zusammen mit der Radnabe 115, wie beschrieben, in einfachster Weise durch die erfindungsgemäße Vorrichtung austauschbar ist.It is clear that the
Diese erfindungsgemäße Vorrichtung ist in vorteilhafter Weise in den Fällen einsetzbar, in welchen keine Zug- oder Druckstange durch die Radnabe 115 hindurch bzw. durch das Radlager 116 hindurch steckbar ist. Dazu sind insbesondere in vorteilhafter Weise die Stützstangen 17, 18 und 19 vorgesehen, über welche die Stützplatte 2 axial feststehend am Achskörper festlegbar ist, wie dies insbesondere aus
Aufgrund der beiden Stützstege 88 und 89 der Stützflansche 84 und 85 der Führungsplatte 68 sowie der Halteplatte 69 ist eine versenkte Anordnung des Radlagers 116 im Lagergehäuse 101 erreichbar. Ist eine versenkte Anordnung nicht vorgesehen, so können auch eine Führungsplatte und eine Halteplatte vorgesehen sein, welche einen ebenen Stützflansch 84 bzw. 85 ohne die axial vorstehenden Stützstege 88 bzw. 89 aufweisen.Due to the two
Claims (16)
- Device for extracting and pressing in a wheel bearing (116) which can be mounted in a bearing bore (102) of a bearing housing (101) of an axle body, by means of which wheel bearing a wheel hub (115) comprising a wheel hub flange (117) is mounted securely rotatably and axially in the bearing housing (101), the device consisting of a pressing device (1) and a pressing plate (65), which by means of a support flange (84, 85) can be arranged in an intermediate space (120) between the wheel hub flange (117) of the wheel hub (115) and the bearing housing (101) of the axial body (100), wherein the axial body (100) is provided with a plurality of bearing eyes (109, 111, 112), which are used to mount additional axle components or a brake calliper, characterised in that the pressing device (1) can be fixed onto the axle body (100) and in that the pressing plate (65) can be adjusted by means of the pressing device (1) and forms a guide plate (68), which comprises an approximately semi-circular recess (80), which is radially delimited by the support flange (84) and in that the guide plate (68) with its support flange (84) can be pushed into the intermediate space (120) between the wheel hub flange (117) of the wheel hub (115) and the bearing housing (101) of the axle body (100) such that the support flange (84) during the extraction process is supported axially at the rear on the wheel hub flange(117) and during the pressing in process on the wheel bearing (116).
- Device according to claim 1, characterised in that the support flange (84) of the guide plate (68) is provided in the region of its radial inner edge with an axially projecting support web (88), by means of which the wheel bearing (116) can be pressed into the bearing housing (101) in a recessed manner.
- Device according to claim 1 or 2, characterised in that a holding plate (69) is assigned to the guide plate (68), which holding plate is secured detachably onto the guide plate (68) and in that the holding plate (68) comprises an approximately semi-circular recess (85), which is radially delimited by a support flange (85) and
in that the holding plate (69) with its support flange (85) can be pushed into the intermediate space (120) between the wheel hub flange (117) of the wheel hub (115) and the bearing housing (101) of the axle body (100), such that the support flange (85) is supported axially on the wheel hub flange (117) on the rear side during the extraction operation and is supported axially on the wheel bearing (116) during the pressing in process. - Device according to claim 3, characterised in that the support flange (85) of the holding plate (69) is provided in the region of its radial inner edge with an axially projecting support web (89), by means of which the wheel bearing (116) can be pressed into the bearing housing (101) in a recessed manner.
- Device according to any one of claims 1 to 4, characterised in that the pressing device (1) comprises a support plate (2), which can be secured stationarily to the bearing eyes (109, 111,112) of the axle body (100) by means of support rods (17, 18, 19), and in that the pressing device (1) comprises a pressing rod (6) which is adjustable axially in relation to the support plate (2) and which can be coupled to the pressing plate (65) in an axially fixed manner.
- Device according to any one of claims 1 to 5, characterised in that a coupling bridge (40), which is coupled to the pressing rod (6) in an axially fixed manner for extracting and pressing in the wheel bearing (116), is provided for the axial adjustment of the pressing plate (65).
- Device according to claim 6, characterised in that the pressing rod (6) is part of a hydraulic cylinder (4), which is in engagement in an axially fixed replaceable manner to the support plate (2) and in that the pressing rod (6) comprises an adjusting thread (16), by means of which the pressing rod (6) is mounted axially adjustably in an axially adjustable pressing piston (5) of the hydraulic cylinder.
- Device according to claim 7, characterised in that the pressing rod (6) can be brought into pulling connection with the coupling bridge (40) with its adjusting thread (16) to extract the wheel hub (115) together with the wheel bearing (116).
- Device according to claim 8, characterised in that to establish the pulling connection, the coupling bridge (40) comprises an internal thread (45), which is part of a pulling sleeve (44), which is arranged in a recess (43) of the coupling bridge (40) and is axially supported on an inner front ring wall (52) of the recess (43) during the extraction process.
- Device according to claim 9, characterised in that the pulling sleeve (44) is held axially adjustably and non-rotatably by means of coupling pins (48) protruding radially into the recess (43) of the coupling bridge (40), and in that the coupling pins (48) engage radially in adjusting slots (49) of the pulling sleeve (44).
- Device according to claim 8 or 9, characterised in that the pulling sleeve (44) in the recess (43) is pressed against the front ring wall (52) by an axial compression spring (53), and in that the axial compression spring (53) is axially supported on a closing cover (51) which is screwed detachably on the outside of the coupling bridge (40) in the area of the recess (43).
- Device according to any one of claims 5 to 11, characterised in that said pressing rod (6) in its one end section comprises a pressing head (8), by means of which the pressing rod (6) can be brought into pressing connection with the coupling bridge (40) for pressing in the wheel bearing (116).
- Device according to claim 12, characterised in that the pressing head (8) is provided with an external hexagon (38).
- Device according to any one of claims 3 to 13, characterised in that spacer sleeves (66, 67) as well as connecting screws (61, 62) are provided for the fixed coupling of the pressing plate (65) comprising the guide plate (68) and the holding plate (69) with the coupling bridge (40).
- Device according to any one of claims 5 to 14, characterised in that the pressing plate (68) is provided with two guide bores (92, 93), by means of which the pressing plate (65) is guided concentrically to the bearing housing (101) and the wheel hub (115) on two of the support rods (17, 18) in an axially adjustable manner.
- Device according to any one of claims 7 to 15, characterised in that the hydraulic cylinder (4) is designed in the form of a hollow piston cylinder (4) and is provided at both axial ends with coupling elements (9, 10), by means of which the hydraulic cylinder (4) can be brought into fixed engagement with the support plate (2) in different orientations to apply either pulling or pushing forces as desired.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200520003450 DE202005003450U1 (en) | 2005-03-04 | 2005-03-04 | Device for removing and pressing in a wheel bearing at the rear |
Publications (2)
Publication Number | Publication Date |
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EP1698436A1 EP1698436A1 (en) | 2006-09-06 |
EP1698436B1 true EP1698436B1 (en) | 2011-08-10 |
Family
ID=34609840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP06003914A Not-in-force EP1698436B1 (en) | 2005-03-04 | 2006-02-27 | Device for inserting and extracting a rearwardly closed wheel bearing |
Country Status (6)
Country | Link |
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US (1) | US20060196029A1 (en) |
EP (1) | EP1698436B1 (en) |
AT (1) | ATE519568T1 (en) |
BR (1) | BRPI0600706A (en) |
DE (1) | DE202005003450U1 (en) |
ES (1) | ES2370505T3 (en) |
Families Citing this family (29)
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DE202005014292U1 (en) * | 2005-09-10 | 2005-12-15 | Klann-Spezial-Werkzeugbau-Gmbh | Wheel flange hub removing device, has supporting device exhibiting support traverse with two arms, at which support unit including support foot is arranged in displaceable manner, and support lip inserted between flange and bearing housing |
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DE202011005562U1 (en) | 2011-04-21 | 2011-10-26 | Klann-Spezial-Werkzeugbau-Gmbh | Wheel tool |
US20150083981A1 (en) * | 2013-09-25 | 2015-03-26 | Ronald D. Kruger | Concentric slave cylinder removal tool |
US20150121675A1 (en) * | 2013-11-04 | 2015-05-07 | Joseph Richard Campoli | Axle hub puller |
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DE102014117403A1 (en) | 2014-11-27 | 2016-06-02 | Tkr Spezialwerkzeuge Gmbh | Mobile hydraulic tool |
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USD965425S1 (en) * | 2022-01-10 | 2022-10-04 | Ernest Doughty | Diesel head bracket |
CN115008192B (en) * | 2022-07-27 | 2023-11-28 | 青岛新松机器人自动化有限公司 | Automatic assembly system of calliper parking subassembly |
CN115338811A (en) * | 2022-08-31 | 2022-11-15 | 大唐湘潭发电有限责任公司 | Shaft coupling dismouting device |
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US2288906A (en) * | 1938-10-06 | 1942-07-07 | Owatonna Tool Co | Extracting tool |
US3599311A (en) * | 1969-03-06 | 1971-08-17 | John B Ellis | Device for pulling a removable mechanism from a lock |
BE790247A (en) * | 1972-01-07 | 1973-02-15 | Samuel Moore & Cy | Connection fixing device |
US4257163A (en) * | 1979-04-27 | 1981-03-24 | Wolfgang Bauer | Automotive service tool |
DE3530983C1 (en) * | 1985-08-30 | 1987-01-22 | Horst Klann | Device for pressing in and pulling out bearings or sleeves, in particular for axle bearings and / or wheel flange hubs on motor vehicles |
DE3730017C1 (en) * | 1987-09-08 | 1989-01-26 | Horst Klann | Device for pressing in and pulling out bearings or sleeves, in particular for axle bearings and / or wheel flange hubs on motor vehicles |
JPH0445817Y2 (en) * | 1988-09-09 | 1992-10-28 | ||
US4965921A (en) * | 1989-09-05 | 1990-10-30 | Priest Gordon W | Flanged axle shaft pulling assist device |
SE9100004L (en) * | 1991-01-02 | 1992-03-09 | Boerje Sjoebom | bearing puller |
US5317793A (en) * | 1991-03-29 | 1994-06-07 | The Boeing Company | Apparatus for installing bushings concentrically in a bore |
US5165169A (en) * | 1991-10-31 | 1992-11-24 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Bearing servicing tool |
US6324740B1 (en) * | 1999-12-30 | 2001-12-04 | Richard E. Siedler | Universal joint disassembly tool |
DE10018799A1 (en) * | 2000-04-15 | 2001-10-25 | Volkswagen Ag | Assembly unit for mounting wheel bearing hub unit incorporates threaded spindle, support pipe, pressure plate, outer ring, and centering piece |
US6389668B1 (en) * | 2000-09-19 | 2002-05-21 | Cherng-Bin Hwang | Tool kit for mounting/detaching an iron sleeve to/from a chassis |
JP3567125B2 (en) * | 2000-10-16 | 2004-09-22 | 日本ピラー工業株式会社 | Inner ring press fitting jig for resin pipe |
DE20106519U1 (en) * | 2001-04-14 | 2001-07-12 | Klann Tools Ltd., Oxfordshire | Tool for replacing wheel bearings |
JP2003048022A (en) * | 2001-08-02 | 2003-02-18 | Honda Motor Co Ltd | Dimpling device |
US6574846B1 (en) * | 2001-10-04 | 2003-06-10 | Hsin Fa Kang | Tool set for replacing brake pads of disc braking systems |
DE20206000U1 (en) * | 2002-04-16 | 2002-08-14 | Klann Tools Ltd., Oxfordshire | Device for exchanging a wheel flange hub and a wheel bearing |
DE60209975T2 (en) * | 2002-10-07 | 2006-12-28 | Chen, Yu-Lin | Clamping device for removing bearing rings |
DE20219954U1 (en) * | 2002-12-24 | 2003-03-06 | Klann-Spezial-Werkzeugbau-GmbH, 78166 Donaueschingen | Squeezing device for eccentric ball joints |
CH696160A5 (en) * | 2003-05-15 | 2007-01-31 | Rego Fix Ag | Pressing device. |
DE20313682U1 (en) * | 2003-09-01 | 2003-11-13 | Paschke, Uwe, Dipl.-Wirtsch.-Ing., 30974 Wennigsen | Two-part shell tool for removal automotive wheel bearing links to vehicle hydraulic brake system |
US7263765B1 (en) * | 2004-05-17 | 2007-09-04 | Smith Thomas F | Marine bearing alignment and insertion tool |
-
2005
- 2005-03-04 DE DE200520003450 patent/DE202005003450U1/en not_active Expired - Lifetime
-
2006
- 2006-02-27 AT AT06003914T patent/ATE519568T1/en active
- 2006-02-27 ES ES06003914T patent/ES2370505T3/en active Active
- 2006-02-27 EP EP06003914A patent/EP1698436B1/en not_active Not-in-force
- 2006-03-03 US US11/367,799 patent/US20060196029A1/en not_active Abandoned
- 2006-03-06 BR BRPI0600706-6A patent/BRPI0600706A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1698436A1 (en) | 2006-09-06 |
ES2370505T3 (en) | 2011-12-19 |
BRPI0600706A (en) | 2006-11-07 |
ATE519568T1 (en) | 2011-08-15 |
DE202005003450U1 (en) | 2005-05-19 |
US20060196029A1 (en) | 2006-09-07 |
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