CN105090197B - Parts on shaft location structure - Google Patents
Parts on shaft location structure Download PDFInfo
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- CN105090197B CN105090197B CN201510551729.2A CN201510551729A CN105090197B CN 105090197 B CN105090197 B CN 105090197B CN 201510551729 A CN201510551729 A CN 201510551729A CN 105090197 B CN105090197 B CN 105090197B
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- key pin
- jackscrew
- parts
- wire hole
- top wire
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- 238000003825 pressing Methods 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 3
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- 230000005540 biological transmission Effects 0.000 description 30
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- 238000005516 engineering process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
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- Engineering & Computer Science (AREA)
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- Pulleys (AREA)
Abstract
The invention discloses a kind of parts on shaft location structure, including：First part first end location division；First the second end of part location division, the second end of the first part location division is provided with the second key pin groove including the corresponding end of first part second, and a key pin for being matched with the second key pin groove, and the key pin holds out against first the second end of part；The circumferentially positioned portion of second part, the circumferentially positioned cage structure of the second part is to be provided with the keyway with key pins in its hub bore；Second part axial positioning and locking portion, the second part axial positioning and locking portion, which is included on the second part keyway position, is radially provided with top wire hole, and matches somebody with somebody the jackscrew for merging compression key pin with the top wire hole.According to the present invention, with the stronger stationkeeping ability of plyability.
Description
Technical field
The present invention relates to a kind of parts on shaft location structure.
Background technology
The structure design of axle（Refer to《Mechanical design handbook》- Machine Components and Parts Design-shafting chapters and sections）Depending on axle by
The type and size of load situation, the arrangement and fixed form of parts on shaft, and bearing, the blank of axle, manufacture and assembly technology
And installation, traffic condition.
Wherein, the fixation of parts on shaft or connecting mode, different with the effect of part.Positioning of the parts on shaft on axle is related to
And the content of two aspects, one is parts on shaft axial fixing structure（Axially position and fixation）, another is parts on shaft week
To fixed structure（It is circumferentially positioned and fixed）.
In general, on the one hand the fixation of parts on shaft and connecting mode are realized using axle self structure, on the other hand need
Other parts on shaft or assisted fasteners are coordinated to realize.Such as shaft shoulder and collar, are the basic structure for realizing axially position,
This structure positioning is accurate, and can bear larger axial force, in order to realize fixation of the part on axle, in addition it is also necessary to from the shaft shoulder
Or the relative side of collar holds out against part and realizes fixation.
Generally, for example the positioning and fixation to a gear on gear shaft, on the one hand realize gear for example, by the shaft shoulder
Axially position, the circumferentially positioned of gear is on the other hand realized by key, then again for example, by axle sleeve coordinate such as bearing in
Circle, and the axial positioning structure of bearing are realized from other end locking gear.This kind of structure is most commonly seen, but overall structure is relative
Complexity, axial part is relatively more, and interrelated, is influenceed larger by expanding with heat and contract with cold.
For another example locked by the type of interference and coordinate the shaft shoulder to realize that the axial and circumferential of part are positioned simultaneously and fixed, structure letter
It is single but larger to the intensity effect of axle.
Mechanical industry is the technical field earlier that starts to walk, and existing thousands of years history, the standardization of its basic parts is remote
Far lead over other technologies field.The location structure of axial part is generally such as mechanical design handbook institute regulation, existing
Break through that existing location structure is extremely difficult under conditions of technology extreme enrichment, it is rarely seen to there is new parts on shaft location structure to go out
It is existing.Several years carry out only a small number of location structures and occurred, the interference fit joint for example realized using expansion set.
The content of the invention
In view of this, it is an object of the invention to provide a kind of stronger new parts on shaft location structure of plyability.
The technical solution adopted by the present invention is：
In foundation some embodiments of the present invention, a kind of parts on shaft location structure, including：
First part first end location division；
First the second end of part location division, the second end of the first part location division is provided with including the corresponding end of first part second
Second key pin groove, and a key pin for being matched with the second key pin groove, the key pin hold out against first the second end of part；
The circumferentially positioned portion of second part, the circumferentially positioned cage structure of the second part is to be provided with and key pins in its hub bore
Keyway；
Second part axial positioning and locking portion, the second part axial positioning and locking portion is included in where the second part keyway
Top wire hole is radially provided with position, and matches somebody with somebody the jackscrew for merging compression key pin with the top wire hole.
In certain embodiments, the second part axial positioning and locking portion has also additionally arranged auxiliary tight lock part, the auxiliary lock
Tight portion includes the auxiliary top wire hole set with the top wire hole on the axis for axis symmetry of axle, and with aiding in top wire hole cooperation
Aid in jackscrew.
Alternatively, the auxiliary tight lock part also includes the RADIAL for being opened in the second part and the axis vertical take-off of the jackscrew
On a pair of assistant reinforcement top wire holes and corresponding assistant reinforcement jackscrew；
Two assistant reinforcement jackscrew coaxial lines, and its axis intersects with the axis of jackscrew, so that two assistant reinforcement jackscrews are
It is opposed on two parts.
Alternatively, first part is bearing, and correspondingly, the first part first end location division includes：
Bore；
The cylindricality gabarit of set type jump ring, the interior card bearing, and the set type jump ring constitutes shaft hole matching with the bore, and
Mouth is caught in provided with flange in the bearing of cylindricality gabarit, so that, flange cooperatively forms axially position with bore outer rim；
Correspondingly, key pin holds the inner ring of bearing.
Alternatively, the bore includes the bearing support part formed in respective holder and seals the upper of bearing support part from upside
Capping.
Alternatively, the bearing support part is the U-type groove being made up of the semi-cylindrical of bottom and the facade on top, its neutral surface
Height it is equal with the radius of semi-cylindrical；
Correspondingly, upper capping is tangent with set type jump ring for plate pressing plate.
Alternatively, the center of the pressing plate is provided with for the centre bore of tight sleeve type jump ring and the top coordinated with centre bore
Tight screw.
Alternatively, the second part one end adjacent with the first part is the second part first end, and the other end is the second part
Second end；
The first key pin groove is being provided with where second the second end of part on the axle of side, is coordinating corresponding key pin to be used for the 3rd part
It is circumferentially positioned；
Realized and determined using sleeve or the 3rd part the hub portion prominent to the second part between 3rd part and the second part
Position.
Alternatively, the 3rd part is different from one end of the second part using jump ring positioning.
Foundation some embodiments of the present invention, a kind of parts on shaft location structure, including：
First part first end location division；
First the second end of part location division, the second end of the first part location division includes the second key axially through whole axle
Cotter way, and a key pin for being matched with the second key pin groove, the key pin hold out against first the second end of part；
The circumferentially positioned portion of second part, the circumferentially positioned cage structure of the second part is to be provided with and key pins in its hub bore
Keyway；
Second part axial positioning and locking portion, the second part axial positioning and locking portion is included in where the second part keyway
Top wire hole is radially provided with position, and matches somebody with somebody the jackscrew for merging compression key pin with the top wire hole.
According to the present invention, the locating assembly of key pin and key constitutes driving key while one part of progress is circumferentially positioned,
Backing pin is constituted again, so as to carry out axially position to another part；The locking of key pin is realized by jackscrew again and realized to one
Part axial is locked, while the jackscrew is locked to the formation of another part again.Based on this, location structure uses compound function,
Not only make location structure compacter, and reliability of positioning is not also reduced.
Brief description of the drawings
Fig. 1 is the parts on shaft location structure according to the present invention in the assembling structure schematic diagram being driven on module.
Fig. 2 is axial component assembly structural representation.
Fig. 3 is parts on shaft one-sided configuration incomplete decomposing schematic diagram.
Fig. 4 is parts on shaft one-sided configuration assembling structure schematic diagram.
Fig. 5 is parts on shaft unilateral assembling structure schematic diagram on support.
In figure：1. servo motor, 2. supports, 3. transmission wheels, 4. bracing pieces, 5. power transmission shafts, 6. synchronous pulleys, 7. is synchronous
Band, 8. bearing assemblies, 9. key pins.
21. screw, 22. unthreaded holes, 23. pressing plates, 24. bore, 25. screwed holes.
51. the first key pin groove, 52. second key pin grooves, 53. jump-ring slots.
61. top wire hole, 62. hub bores, 63. keyways, 64. top wire holes.
81. bearing, 82. sets of type jump rings, 83. bearing inner races.
Embodiment
It should be appreciated that on shafting and its structure design, unless specifically stated otherwise, in the present invention, axially, radially and circumferentially
The referential based on " axle ".It is readily apparent that " axle " here should be " axle " in parts on shaft.
In addition to the location structure for the axle that the present invention is specialized, parts on shaft axial fixing structure and method, parts on shaft
Circumferentially fixed structures and methods can use known locations structures and methods.
It should be appreciated that parts on shaft is in addition to driving member, such as gear, belt wheel, friction pulley, it should also include for example propping up
Support member, such as bearing, therefore, determining for other parts on shaft in addition to driving member can also be applied to according to embodiments of the invention
Position and fixation.
In the application shown in Fig. 1, it is that the axle in a kind of transmission modular structure of underloading, figure is power transmission shaft 5, has four
Parts on shaft mainly has the bearing assembly 8 shown in synchronous pulley 6, transmission wheel 3 and Fig. 2 in bar, figure, is carried out as example on axle
The description of part positioning structure, it is foreseeable, based on this, it can apply to the parts on shaft positioning with similar positioning method
In.
First, refer in Figure of description 1, Fig. 1, the simple loading analysis of parts on shaft：
It is the power biography that the synchronous pulley connected on the output shaft of servo motor 1 constitutes synchronous belt drive mechanism first
Pass, synchronous pulley needs that axial float can not be produced on the power transmission shaft installed, and needs to transmit certain torque, naturally,
Corresponding power transmission shaft needs to overcome certain moment of torsion and moment of flexure, and corresponding power transmission shaft is needed with certain antitorque and anti-in other words
Cut ability 5.Therefore, it should reduce and the strength and stiffness of power transmission shaft 5 are slackened.
The positioning method of other synchronous pulleys 6 is essentially identical.
Installation site of the bearing assembly 8 on power transmission shaft 5 is commonly referred to as axle journal according to Machine Design specification, and bearing needs can
The two ends positioning leaned on, because its inner ring and power transmission shaft 5 are generally using being interference fitted, its stiction between power transmission shaft 5 is remote
More than the kinetic force of friction of bearing moving part, thus without the concern for it is circumferentially positioned the problem of.
Also include the transmission wheel 3 of underloading in structure shown in Fig. 1, it is needed to carry out two ends positioning and circumferentially positioned.
The characteristics of in Fig. 1 is that it is closer that parts on shaft is leaned on, so as to according to the present invention, possess compound public keeper
The positioning for positioning still three parts of technical conditions, either two parts.
In general, the driving parts of parts on shaft, such as synchronous pulley 6 are the parts that position is guaranteed, and such as axle
Bearing assembly 8 is then the part for ensureing other parts positional precision.Therefore, bearing assembly 8 is defined as into the first part, it is possible to understand that
For be other parts assembling basis.
Referring to Figure of description 1-5, the first positioning method is first described.
Figure axis bearing assembly 8 constitutes the first part, and bearing positions its one end in the inner part and typically uses the shaft shoulder or collar
Positioning, in some implementations it is also possible to being positioned using such as axle sleeve.
It should be appreciated that inner side refers to Figure of description 1 here, the direction towards the inner space of support 2 is interior, otherwise is
Outside.
The inside one end of bearing assembly orientates first end as, and outside one end orientates the second end as, and the end of bearing second is general
Positioned using bearing (ball) cover, and bearing (ball) cover is typically bolted on support 2.
In certain embodiments, the inner first end in other words of bearing 81 can be using conventional positioning method, such as axle
Shoulder, collar or sleeve, the structure are easier to realize using such as multi-diameter shaft, will not be repeated here.
In the structure shown in Fig. 3, the location structure at the outer end of bearing 81 the second end in other words can be in more clearly
Reveal and.In Fig. 3, power transmission shaft 5 is an optical axis, the inner side positioning of bearing 81 is not considered, referring initially to its outside, i.e. the second end.In figure
Power transmission shaft 5 is in the outside of bearing（With support 2 for referential inside and outside）Be provided with the second key pin groove 52, and one be matched with this second
The key pin 9 of key pin groove 52, the key pin 9 now constitutes backing pin and holds out against the inner ring of bearing 81.
As it was previously stated, generally using interference fit joint between bearing 81 and power transmission shaft 5, itself there is certain linking intensity.
The key pin groove 52 of key pin 9 and second generally also uses interference fit joint, with certain retaining ability.
Different from the Flat dey joint in machine driving, double round end flat keys and corresponding keyway in Flat dey joint（Straight trough）'s
Surrounding is interference fit relation.In the structure shown in Fig. 3, the cooperation of the key pin groove 52 of key pin 9 and second is mainly two sides
Face, certain space can be all reserved at the two ends of key pin 9, and the assembling free degree of bearing 81 is very big.
In Fig. 3-Fig. 5, the part adjacent with bearing is synchronous pulley 6, and synchronous pulley needs the double fixed of axial and circumferential
Position.
The general structure of synchronous pulley 6 is to carry a wheel hub or a dish made in one piece, and wheel hub contains one
Individual hub bore 62.Synchronous pulley 6 is generally coupled using driving key with power transmission shaft 5, and therefore, its hub bore 62 is additionally provided with a keyway
63。
In general, the width of the wheel hub of synchronous pulley 6 and the wheel body of synchronous pulley 6（In parts on shaft, axially limited
Measure as width, such as the facewidth in gear is typical example）Identical, in some applications, the width of its wheel hub compares wheel body
Width is big, can typically be used as the part being axially located.
Synchronous pulley 6 is as the second part, and its circumferentially positioned cage structure is to be provided with the key with the cooperation of key pin 9 in its hub bore 62
Groove 63, so that, key pin 9 is positioned as backing pin to the outer end of bearing 81, and constitutes week to synchronous pulley 6 as driving key
To positioning.
Second part can also use simple positioning and locking side using compound axial positioning structure in some embodiments
Formula.As in Figure 3-5, synchronous pulley 6 is provided with the top wire hole 61 of radial direction, especially in the position where its keyway 63, based on this
Structure, when jackscrew 64 is tightened, jackscrew 64 can be pressed on key pin 9, so as to form locking, utilize frictional force formation axially position
And locking.
In addition, jackscrew 64 has also further locked key pin 9 simultaneously.
In order to clearly show that jackscrew 64 in figure, employ different ratios and show jackscrew 64, jackscrew 64 is adopted with top wire hole 61
With 2:1 ratio is drawn.
Because synchronous pulley 6 is mainly used to transmit torque, adaptable, the balance that power transmission shaft 5 provides synchronous pulley 6
Torque is mainly moment of torsion.Also contain turning torque simultaneously, be also moment of torsion.Therefore, synchronous pulley 6 is realized circumferential fixed by key pin 9
Position.
In addition the axiality between synchronous pulley 6 and power transmission shaft 5 requires not high, and therefore, single jackscrew 64 meets it
The technical requirements that circumferentially positioned and axially position is locked.
What is ensured first required for synchronous pulley 6 is transmission accuracy, and above-mentioned axiality is natural, and the higher the better, but realizes high-precision
The cost of the axiality of degree is unsuitable excessive.
In certain embodiments, clearly show that out and held out against with the corresponding jackscrew 64 of the second key pin groove 52, jackscrew 64 in figure
During key pin 9, the stress of synchronous pulley 6 and cause key pin side synchronous pulley 6 and power transmission shaft 5 fit clearance it is relatively large, relatively
Side fit clearance it is relatively small, so as to cause coaxiality error to become big.
Therefore, also having auxiliary top wire hole as the synchronous pulley 6 of the second part side relative with key pin 9（Do not show in figure
Go out）, the auxiliary top wire hole and top wire hole 61 set on the axis for axis symmetry of power transmission shaft 5, can be formed relative equilibrium to passing
Moving axis 5 is held out against, so as to ensure the axiality of power transmission shaft 5 and synchronous pulley 6.
Auxiliary jackscrew and jackscrew 64 can realize the stubborn solid of equilibrant force using torque spanner.
It is not only to ensure the axiality that synchronous pulley 6 coordinates with power transmission shaft 5 to aid in the contraposition of jackscrew and jackscrew 64 to coordinate,
And the Double Tops silk structure that contraposition is set can provide more preferably linking intensity.
It is visible in Fig. 4 and Fig. 5, outside the top wire hole 61 indicated, and previously described auxiliary top wire hole, also contain
Other top wire holes in the axis side of top wire hole 61.It is strong that other top wire hole and jackscrew joined together further enhancing connection
Degree, is called assistant reinforcement top wire hole, jackscrew joined together is referred to as assistant reinforcement jackscrew.
Visible in Fig. 4 and Fig. 5, the axis of assistant reinforcement jackscrew is vertical with the axis of jackscrew 64.
Thus, four jackscrews could be formed with the circumferential and axial locking of effect.
The contraposition of two assistant reinforcement jackscrews is set, so that axis is identical, in order to obtain preferable stress condition, two assistant reinforcements
The axis of jackscrew intersects with the axis of jackscrew 64.
By said structure, compound positioning and latch-up structure are employed to parts on shaft, be parts on shaft positioning and
Locking provides new technique direction.
Parts on shaft species and specification are relatively more, and on applicable object best in the present embodiment, preferably one end has
There is the part of good location base, one end of such as part is positioned using the shaft shoulder, then as the first part using this
Positioning method in embodiment has preferable locating effect.Such as positioning between multiple gears on gear shaft is except using
Outside the shaft shoulder, collar and sleeve, can also using it is heretofore described and location structure.
As Figure 1-5, the part being positioned based on is bearing 81, for bearing 81, is carried in certain embodiments
For a kind of specific location structure, it coordinates support 2 to realize positioning using annex.
In the structure shown in Fig. 5, provided with a bore 24, for installing bearing assembly 8.Bore 24, in machinery, one
As refer exclusively to bearing saddle bore（Bearing seat hole）, operating basis, the installation position with bearing precision cooperation are provided for bearing
Put.
In these embodiments, bearing 81 is not directly installed in bore 24, but one set type jump ring 82 of existing set, set
Type jump ring 82 is the external member of a tubular, the outer ring for the inward flange holding bearing 81 that its bottom is formed by in-flanges, and oral area is then
Outward flange with flanging formation.
Based on the said structure of set type jump ring 82, set is embedded with the bearing 81, forms the structure for being analogous to bearing saddle bore.
The inner cylinder of set type jump ring needs to be engaged with the cylinder of the outer ring of bearing 81, thus, the body of set type jump ring 82 is cylindrical structure, because
And it has the gabarit of cylindricality, the gabarit constitutes shaft hole matching structure with the bore 24.
The oral area of set type jump ring 82 is formed with outward flange, when the body of set type jump ring 82 coordinates with bore 24, outward flange
More than the radial dimension of bore 24, so as to without the movement of the normal direction other end, form axially position.
In the structure shown in Fig. 3, it is seen that, key pin 9 holds the inner ring of bearing 81, and inner ring belongs to quiet part, passes through key
Pin 9 holds positioning, and in axial locking.
On the composition of bearing saddle bore, a circular hole can be simply configured to, and is directly opened on the wall of support 2
Go out.
In certain embodiments, to adapt to heavily loaded condition, the position where bore 24 needs to strengthen, and widens bore
24, so that more than the thickness of the side wall of support 2, the prominent part with side wall sets reinforcement.
In the application for adapting to heavy duty, bore 24 is configured to circular hole, and two parts above and below being divided into, and is partly each half
Circle structure, up and down two parts by bolts assemblies together.Wherein, below part is directly processed on support 2, on
The part in face constitutes cap, for example, by foregoing bolt connection, in favor of maintenance.
In the application of some underloadings, such as in the system of transmission wheel 3 shown in Fig. 1, bore 24 is processed to a kind of structure
Relatively easy form, so that the bore 24 includes forming the bearing support part in respective holder 2 and seals bearing block from upside
The upper capping in portion.
Wherein, the bearing support part is the U-type groove being made up of the semi-cylindrical of bottom and the facade on top, its neutral surface
Height is equal with the radius of semi-cylindrical.
So correspondingly, upper capping is tangent with set type jump ring 82 for plate pressing plate 23, as shown in figure 5, pressing plate 23
It is arranged on by screw 21 on support 2, forms the reliable fixation to bearing assembly 8.Screw 21 is larger using comparing in figure
Ratio is drawn, clearly to react assembling structure.
Further, in order to improve fixed reliability, the center of the pressing plate 23 is provided with for tight sleeve type jump ring 82
Centre bore（Not shown in figure）And the Top fastening screw coordinated with centre bore（Not shown in figure）, so as to assemble pressing plate 23
Afterwards, Top fastening screw is tightened, relatively reliable fixation is formed.
Also include a key pin groove, i.e. the first key pin groove 51, thus, it is possible to synchronous pulley 6 in the structure shown in Fig. 3
Axially position is carried out, and the first key pin groove 51 is also used as the circumferentially positioned part of the 3rd part, such as biography shown in Fig. 1
Send wheel 3.Thus the first key pin groove 51 is that key pin joined together constitutes double acting keeper.
Two key pin grooves, i.e. the first key pin groove 51 and the second key pin groove 52 can be set with tandem, beneficial to processing and assembling.
In certain embodiments, the first key pin groove 51 and the second key pin groove 52 can be avoided to transmission using shifting to install
The local strength of axle 5 weakens excessive.
In certain embodiments, it is prominent to the second part using sleeve or the 3rd part between the 3rd part and the second part
Realize positioning in the hub portion gone out.
In the structure shown in Fig. 3, the shaft end of power transmission shaft 5 is also provided with jump-ring slot 53, jump ring can be used to be formed to the 3rd
The axially position of transmission wheel 3 and locking in part, that is, figure.
In certain embodiments, key pin groove can only open one, and power transmission shaft 5 axially through, it is adaptable to underloading
In, have to power transmission shaft 5 and slackened than larger intensity, but there is greater flexibility for the assembling of parts on shaft.
Claims (8)
1. a kind of parts on shaft location structure, it is characterised in that including：
First part first end location division；
First the second end of part location division, the second end of the first part location division is provided with second including the corresponding end of first part second
Key pin groove（52）, and one be matched with the second key pin groove（52）Key pin（9）, the key pin（9）Hold out against first the second end of part；
The circumferentially positioned portion of second part, the circumferentially positioned cage structure of the second part is in its hub bore（62）It is provided with and key pin（9）Match somebody with somebody
The keyway of conjunction（63）；
Second part axial positioning and locking portion, the second part axial positioning and locking portion is included in the second part keyway（63）Place
Top wire hole is radially provided with position（61）, and with the top wire hole（61）Key pin is compressed with merging（9）Jackscrew（64）；
The second part axial positioning and locking portion has also additionally arranged auxiliary tight lock part, and the auxiliary tight lock part includes and the top wire hole
（61）The auxiliary top wire hole that axis for axis symmetry on axle is set, and the auxiliary jackscrew coordinated with auxiliary top wire hole；
The auxiliary tight lock part also includes being opened in the second part and the jackscrew（64）Axis vertical take-off RADIAL on one
To assistant reinforcement top wire hole and corresponding assistant reinforcement jackscrew；
Two assistant reinforcement jackscrew coaxial lines, and its axis and jackscrew（64）Axis intersect so that two assistant reinforcement jackscrews are the
It is opposed on two parts；
Wherein, the second part is synchronous pulley.
2. parts on shaft location structure according to claim 1, it is characterised in that first part is bearing（81）,
Correspondingly, the first part first end location division includes：
Bore（24）；
Set type jump ring（82）, the interior card bearing（81）, and the set type jump ring（82）Cylindricality gabarit and the bore（24）Structure
Into shaft hole matching, and in the bearing of cylindricality gabarit（81）Mouth is caught in provided with flange, so that, flange cooperatively forms axle with bore outer rim
To positioning；
Correspondingly, key pin（9）Hold bearing（81）Inner ring.
3. parts on shaft location structure according to claim 2, it is characterised in that the bore（24）Including being formed in phase
Answer support（2）On bearing support part and the upper capping of bearing support part is sealed from upside.
4. parts on shaft location structure according to claim 3, it is characterised in that the bearing support part is by the half of bottom
The U-type groove that the facade on the face of cylinder and top is constituted, the height of its neutral surface is equal with the radius of semi-cylindrical；
Correspondingly, upper capping is plate pressing plate（23）And with set type jump ring（82）It is tangent.
5. parts on shaft location structure according to claim 4, it is characterised in that the pressing plate（23）Center be provided with use
In tight sleeve type jump ring（82）Centre bore and with centre bore coordinate Top fastening screw.
6. parts on shaft location structure according to claim 1, it is characterised in that the second part is adjacent with the first part
One end is the second part first end, and the other end is second the second end of part；
Where second the second end of part the first key pin groove is being provided with the axle of side（51）, coordinate corresponding key pin to be used for the 3rd part
It is circumferentially positioned；
Positioning is realized using sleeve or the 3rd part the hub portion prominent to the second part between 3rd part and the second part.
7. parts on shaft location structure according to claim 6, it is characterised in that the 3rd part is different from the second part
One end is positioned using jump ring.
8. a kind of parts on shaft location structure, it is characterised in that including：
First part first end location division；
First the second end of part location division, the second end of the first part location division includes the second key pin groove axially through whole axle
（52）, and one be matched with the second key pin groove（52）Key pin（9）, the key pin（9）Hold out against first the second end of part；
The circumferentially positioned portion of second part, the circumferentially positioned cage structure of the second part is in its hub bore（62）It is provided with and key pin（9）Match somebody with somebody
The keyway of conjunction（63）；
Second part axial positioning and locking portion, the second part axial positioning and locking portion is included in the second part keyway（63）Place
Top wire hole is radially provided with position（61）, and with the top wire hole（61）Key pin is compressed with merging（9）Jackscrew（64）；
The second part axial positioning and locking portion has also additionally arranged auxiliary tight lock part, and the auxiliary tight lock part includes and the top wire hole
（61）The auxiliary top wire hole that axis for axis symmetry on axle is set, and the auxiliary jackscrew coordinated with auxiliary top wire hole；
The auxiliary tight lock part also includes being opened in the second part and the jackscrew（64）Axis vertical take-off RADIAL on one
To assistant reinforcement top wire hole and corresponding assistant reinforcement jackscrew；
Two assistant reinforcement jackscrew coaxial lines, and its axis and jackscrew（64）Axis intersect so that two assistant reinforcement jackscrews are the
It is opposed on two parts；
Second part is synchronous pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551729.2A CN105090197B (en) | 2015-09-02 | 2015-09-02 | Parts on shaft location structure |
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| CN201510551729.2A CN105090197B (en) | 2015-09-02 | 2015-09-02 | Parts on shaft location structure |
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| CN112211904B (en) * | 2019-07-09 | 2022-04-19 | 大族激光科技产业集团股份有限公司 | Linear bearing and tubular linear motor |
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| GB516078A (en) * | 1938-06-20 | 1939-12-21 | Courtaulds Ltd | Improvements in and relating to fixing attachments on rods, tubes, rollers and the like |
| FR2351307A1 (en) * | 1976-05-12 | 1977-12-09 | Claret Andre | Axial retainer for ball bearing outer race - has disc with three equally spaced arms bent to fit into keyways in housing |
| JPH0449372Y2 (en) * | 1985-05-23 | 1992-11-20 | ||
| CN2458547Y (en) * | 2000-12-26 | 2001-11-07 | 古煌秀 | Wind wheel duct structure for split-type cold/hot air conditioner |
| CN2813146Y (en) * | 2005-05-25 | 2006-09-06 | 吉素琴 | Universal coupling for straightener |
| KR20080082259A (en) * | 2007-03-08 | 2008-09-11 | 세메스 주식회사 | Fastening structure of shaft with bearing |
| EP2412528B2 (en) * | 2010-07-28 | 2019-05-01 | Felix Böttcher GmbH & Co. KG | Method for repairing a cylinder and cylinder |
| CN201780864U (en) * | 2010-08-31 | 2011-03-30 | 平高集团有限公司 | Electronic hollow coil current transformer |
| CN201891701U (en) * | 2010-11-10 | 2011-07-06 | 上海邦浦实业集团有限公司 | Novel positioning structure of shaft sleeve |
| CN201973035U (en) * | 2010-12-29 | 2011-09-14 | 德清新明辉电光源有限公司 | Transmission shaft for bubble blowing machine |
| KR101197135B1 (en) * | 2011-01-31 | 2012-11-07 | 효림산업 주식회사 | Crimping center bearing assembly and manufacture method of crimping cemter bearing assembly |
| DE102011076107A1 (en) * | 2011-03-31 | 2012-10-04 | Aktiebolaget Skf | bearing arrangement |
| CN202484256U (en) * | 2011-12-26 | 2012-10-10 | 中国重汽集团济南动力有限公司 | Spindle assembly for double-intermediate shaft transmission |
| DE212012000267U1 (en) * | 2012-03-30 | 2014-11-25 | Nsk Ltd. | Rolling device |
| CN102730093A (en) * | 2012-06-21 | 2012-10-17 | 西安交通大学 | Transmission mechanism of robot |
| CN102720767A (en) * | 2012-06-29 | 2012-10-10 | 无锡杰思物流设备有限公司 | Mounting structure of roller bearing |
| CN203297368U (en) * | 2013-04-25 | 2013-11-20 | 黄金全 | Bearing block |
| US9003922B2 (en) * | 2013-08-13 | 2015-04-14 | K-Tor LLC | Quick release coupling for the crank of a bicycle drive train |
| CN204199349U (en) * | 2014-10-23 | 2015-03-11 | 国机重工（洛阳）有限公司 | A kind of Electric bulldozer power assembly structure |
| CN204357964U (en) * | 2014-12-19 | 2015-05-27 | 郑州中联收获机械有限公司 | A kind of key connects wheel hub |
| CN204942201U (en) * | 2015-09-02 | 2016-01-06 | 山东华芯富创电子科技有限公司 | Parts on shaft position structure |
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