CN103032560B - Novel double-braking rim driving device - Google Patents
Novel double-braking rim driving device Download PDFInfo
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- CN103032560B CN103032560B CN201210526230.2A CN201210526230A CN103032560B CN 103032560 B CN103032560 B CN 103032560B CN 201210526230 A CN201210526230 A CN 201210526230A CN 103032560 B CN103032560 B CN 103032560B
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Abstract
The invention discloses a novel double-braking rim driving device, and relates to a double-braking device for tire parking braking and driving braking. The novel double-braking rim driving device comprises a supporting base, a hydraulic motor, a planetary gear speed reducer, a parking brake, a driving brake and the like, wherein a plurality of groups of movable friction sheets of the driving brake are respectively embedded into splines arranged outside an inner gear shell of the planetary gear speed reducer; a plurality of groups of steel sheets are simultaneously connected onto a connecting rod in series; and a rubber ring is arranged between each steel sheet and each movable friction sheet, which are adjacent. The braking on the inner gear shell is directly carried out so that the braking is more reliable and safer; elastic auxiliary steel sheets of the rubber rings and the movable friction sheets are completely separated, so that movement failure is prevented from happening; the driving brake is additionally provided with a cooling circulating system, so that heat generated by the driving braking can be eliminated, parts are prevented from being damaged at a high temperature, and the service life is prolonged; and the improved rim driving device also has the advantages of compact structure, high working efficiency, large transmission torque and the like.
Description
Technical field
The present invention relates to a kind of wheel hub drive, the wheel hub drive of the especially two braking of band.
Background technique
At present, traditional wheel hub drive is generally be made up of supporting base, supporting sleeve, oil hydraulic motor, multi-stage planetary gear speed reducer, internal-gear shell, Parking Brake etc., Parking Brake just can only work after tire stops, and when tire be in normally travel time, because the speed of travel of wheel type drive device is very fast, therefore on tire, other single raise shoe type Service Brake or dish-style Service Brake again must realize running braking function, this Service Brake is normally directly arranged on multi-stage planetary gear speed reducer vertically.So, the tire that originally installing space is limited more seems awkward, this not only reduce drive unit working efficiency, affect transmitting torque, and affect operational safety.
Disclosed China Patent No. be 201110436587.7 " Multifunctional mining construction mechanical wheel walking driving device " be a kind of wheel hub drive simultaneously possessing parking braking function and running braking function, its Service Brake is mainly made up of piston, shell, many group steel discs and many group movable friction plates etc., and be directly installed on outside supporting sleeve and internal-gear shell, supporting sleeve is connected and fixed by screw and internal-gear shell again, therefore total shortens on axial dimension, solves the problem that above-mentioned tire installing space is little.But, many groups steel disc and many group movable friction plates of this Service Brake are mainly arranged on outside supporting sleeve, especially many group movable friction plates are installed in the outer set spline of supporting sleeve, many group steel discs are compressed with many group movable friction plates with tight supporting sleeve of stopping by piston during work, and then reach tight internal-gear shell of stopping to form the object of braking, in this braking process, due to the driving link that internal-gear shell is as driving supporting sleeve to rotate, therefore tight supporting sleeve of directly stopping can cause the moment of torsion be connected between supporting sleeve with internal-gear shell to increase, and cannot reach good braking effect.
Simultaneously, in technological scheme disclosed by above-mentioned patent, many groups steel disc and many group movable friction plates directly carry out alternately, and corresponding cooling unit is not possessed yet on this Service Brake, therefore in braking process, because the hydraulic oil sometimes between steel disc and movable friction plate can exist sticking phenomenon, and under the impact of the factor such as friction high temperature deformation between steel disc and movable friction plate, when Service Brake is at brake off, the phenomenon that cannot throw off completely is often there is between adjacent steel disc and movable friction plate, cause the braking failure of Service Brake, and bring potential safety hazard.And Service Brake does not possess cooling unit, its amount of heat produced when service brake also can cause damage to each component.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defect of prior art and provides a kind of compact structure, and service brake is reliable, safety, the wheel hub drive of the two braking of band of long service life.
Technical problem of the present invention is achieved through the following technical solutions:
With a wheel hub drive for two braking, comprise the supporting base be arranged on vehicle frame, be provided with oil hydraulic motor in this supporting base, supporting base one end is provided with plane table thermoconductivity meter; Described plane table thermoconductivity meter comprises coupling shaft, primary centre wheel, two-stage planetary reduction mechanism, internal-gear shell and cover plate; Described coupling shaft moves as axial reciprocating, is provided with the spline connecting sleeve doing to be in transmission connection between this coupling shaft input end and output shaft of oil hydraulic motor, and coupling shaft is provided with the primary centre wheel be in transmission connection; Described two-stage planetary reduction mechanism takes turns with primary centre respectively, the ring gear of internal-gear shell is meshed, and this internal-gear shell is provided with wheel hub; Described cover plate is connected in internal-gear shell, and is enclosed in internal-gear shell by coupling shaft, primary centre wheel and two-stage planetary reduction mechanism; Be provided with the supporting sleeve of stuffing box gland dress outside described supporting base, this supporting sleeve is connected with internal-gear shell, is provided with the bearing of the supporting that rotates between supporting sleeve and supporting base; Parking Brake is provided with between described supporting base and spline connecting sleeve; Service Brake is provided with outside described supporting sleeve and internal-gear shell, this Service Brake comprises piston, shell, many group steel discs and organizes movable friction plate more, this shell is connected on supporting base by support plate, described shell, between piston and internal-gear shell formed brake chamber, be provided with many groups steel disc alternately and organize movable friction plate vertically in this brake chamber more, the while of many groups steel disc on the connecting rod installed vertically in brake chamber in tandem, many group movable friction plates are inlaid in the spline set by outside internal-gear shell respectively; Rubber ring is equipped with between described every adjacent steel disc and movable friction plate; Described Service Brake is also provided with cooling recirculation system, and this cooling recirculation system comprises the hot oil outlet being arranged on cold oil import in support plate and arranging in the enclosure, also comprises and is arranged on piston, support plate, grease chamber between supporting base and supporting sleeve; Described cold oil import is communicated with grease chamber through the logical oil-gap between piston with support plate; Described grease chamber is communicated with brake chamber through the logical oil-gap between piston with supporting sleeve, and this brake chamber is connected with hot oil outlet; Described supporting sleeve and internal-gear shell are respectively equipped with the oil through that multiple correspondence communicates, this oil through is connected with grease chamber, chamber of braking respectively.
Described supporting sleeve and internal-gear shell being respectively equipped with the oil through that correspondence communicates is 8 ~ 12, and the oil through on this supporting sleeve is communicated with grease chamber, and the oil through in this internal-gear shell is communicated with brake chamber by multiple aperture.
Described coupling shaft output terminal is provided with Manual release device, this Manual release device comprises the disengagement axle do axial reciprocating movement, this disengagement axle one end is connected on coupling shaft output terminal, the other end stretches out cover plate and exposes, seal ring is provided with between disengagement axle and cover plate, throw off outer shaft sleeve and Returnning spring is housed, these Returnning spring two ends difference pushing tow is on the outer shoulder of throwing off axle and cover plate.
The piston sleeve dress of described Service Brake is arranged on outside supporting sleeve, and moves as axial reciprocating, is provided with the spring groove of multiple outward opening, all arranges goring push spring in each spring groove in this piston; Described body seal suit is arranged on outside piston and internal-gear shell, forms oil pocket between this shell and piston, is also provided with and is communicated with oil pocket and extraneous oil transportation channel respectively in shell; This support plate contacts with the goring push spring exposed junction in described spring groove.
Described Parking Brake comprises the fixed cover be sleeved on outside spline connecting sleeve, wet type brake block group and piston sleeve; Described fixing interplanting axially locating is installed, and is provided with the bearing of the supporting that rotates between this fixed cover and spline connecting sleeve; Described wet type brake block group is arranged between fixed cover and piston sleeve; Described piston sleeve and the intercropping of supporting base seal installs, and is also formed with oil pocket between the two, and in supporting base, be provided with the oil transportation channel being communicated with oil pocket and the external world respectively; Be provided with the spring groove of outward opening in described piston sleeve, and goring push spring is set in described spring groove; Described piston sleeve side is provided with the fixed plate that axially locating is installed, and this fixed plate contacts with the goring push spring exposed junction in spring groove.
The heavily loaded floating seal ring forming stuffing box gland assembling structure is provided with between described supporting base and supporting sleeve.
The heavily loaded floating seal ring forming stuffing box gland assembling structure is provided with between described shell and internal-gear shell.
Compared with prior art, the present invention is mainly designed with spline outside the internal-gear shell of plane table thermoconductivity meter, then many groups of Service Brake movable friction plate is inlaid in this spline respectively, organize steel disc then simultaneously in tandem on the connecting rod installed vertically more, and be equipped with rubber ring between every adjacent steel disc and movable friction plate, move to the axial reciprocating realizing piston when utilizing the elastic force of the oil-filled of oil pocket or goring push spring, many group steel discs and many group movable friction plates just can be made to be squeezed or to loosen, thus reach service brake or the walking object of tire, owing to being directly brake internal-gear shell, therefore braking is more reliable, and assist the disengagement completely between steel disc and movable friction plate by the elastic force of rubber ring, can also avoid causing action to lose efficacy, this Service Brake also has additional cooling recirculation system, can be used for the amount of heat produced when eliminating service brake, component are avoided to damage under hot operation, increase the service life, the overall axial dimension of wheel hub drive after improvement is shorter, structure is compacter, therefore working efficiency is higher, transmitting torque increases, be particularly suitable for using in the tire that installing space is limited drives.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention.
Fig. 2 is the braking state sectional structure enlarged view (oil through is not analysed and observe) of Service Brake.
Fig. 3 is the non-braking state sectional structure enlarged view (oil through is analysed and observe) of Service Brake.
Fig. 4 is the sectional structure enlarged view of Parking Brake.
Fig. 5 is the sectional structure enlarged view of Manual release device.
Embodiment
To elaborate again to the embodiment of the present invention by above-mentioned accompanying drawing below.
As shown in Fig. 1 ~ Fig. 5, 1. oil hydraulic motor, 2. supporting base, 3. heavily loaded floating seal ring, 4. support plate, 5. Service Brake, 51. pistons, 52. shells, 53. connecting rods, 54. mounting plates, 55. steel discs, 56. movable friction plates, 57. rubber rings, 58. internal-gear shell, 6. cooling recirculation system, 61. cold oil imports, 62. logical oil-gaps, 63. grease chambeies, 64. hot oil outlets, 65. oil throughs, 7. cover plate, 8. Manual release device, 81. throw off axle, 82. Returnning springs, 83. cappings, 9. Parking Brake, 91. collars, 92. fixed plates, 93. piston sleeves, 94. wet type brake block groups, 95. fixed covers, 96. bearings, 10. oil pocket, 11. two-stage planetary reduction mechanisms, 12. primary centre wheels, 13. coupling shafts, 14. spline connecting sleeves, 15. oil transportation channels, 16. supporting sleeves, 17. goring push springs.
The wheel hub drive of the two braking of band, as shown in Figure 1, it relates to a kind of two braking device for tire parking braking and service brake, and its structure is mainly made up of supporting base 2, oil hydraulic motor 1, plane table thermoconductivity meter, Parking Brake 9 and Service Brake 5 etc.
Described supporting base 2 is installed on vehicle frame (not shown) by screw, it is the tapered sleeve structure of a hollow, with left end shown in Fig. 1, Fig. 4 be big uncork end, right-hand member is little opening end, and load oil hydraulic motor 1 from supporting base 2 left end, this oil hydraulic motor adopts variable high-speed oil hydraulic motor, and it realizes the velocity variations of tire on different road surface by high low speed switching; Supporting base 2 right-hand member arranges plane table thermoconductivity meter, this plane table thermoconductivity meter mainly comprises horizontally disposed coupling shaft 13, primary centre wheel 12, two-stage planetary reduction mechanism 11, internal-gear shell 58 and cover plate 7, wherein, coupling shaft 13 can move as axial reciprocating, be provided with the spline connecting sleeve 14 doing to be in transmission connection between this coupling shaft input end and output shaft of oil hydraulic motor 1, therefore output shaft rotation can drive coupling shaft 13 to make synchronous axial system; Coupling shaft 13 is provided with the primary centre wheel 12 that key connects, and two-stage planetary reduction mechanism 11 takes turns 12 respectively with primary centre, the ring gear of internal-gear shell 58 is meshed, and this internal-gear shell has been connected by screw wheel hub (not shown); Coupling shaft 13 output terminal is provided with Manual release device 8; Described cover plate 7 is connected by screw the right-hand member in internal-gear shell 58, and is enclosed in internal-gear shell 58 coupling shaft 13, primary centre wheel 12 and two-stage planetary reduction mechanism 11 to protect.
The power transmission process of this plane table thermoconductivity meter is: oil hydraulic motor 1 starts and drives coupling shaft 13 synchronous axial system by output shaft, spline connecting sleeve 14, and then power is passed to after slowing down in internal-gear shell 58 through primary centre wheel 12, two-stage planetary reduction mechanism 11 successively, and drive internal-gear shell and be arranged on the hub rotation in internal-gear shell, thus realize the motion of tire.
Described Manual release device 8 as shown in Figure 5, comprise the disengagement axle 81 that a level is installed, this disengagement axle left end is connected to coupling shaft 13 output terminal, therefore drive coupling shaft to move as axial reciprocating by throwing off axle, disengagement axle 81 right-hand member stretches out cover plate 7 and exposes, can be used for operating, be also provided with screw connection capping 83 on the cover board and throw off axle to protect; Seal ring is provided with to carry out throwing off the motion seal of axle between disengagement axle 81 and cover plate 7, throw off outside axle and be provided with outer shoulder, also be set with Returnning spring 82, these Returnning spring two ends difference pushing tow is on the outer shoulder of throwing off axle 81 and cover plate 7, drive the axial reciprocating of coupling shaft 13 to move by the compression of Returnning spring 82 and elastic reset to operate disengagement axle 81 during work, thus realize the walking drag function of this wheel hub drive.This Manual release device simplicity of design is practical, operational reliability is higher and be easy to realize.
Parking Brake 9 is provided with between described supporting base 2 and spline connecting sleeve 14, it is a kind of Wet-type multi-disc Parking Brake, can be used for braking when tire stops, this Parking Brake as shown in Figure 4, mainly comprises the fixed cover 95 be sleeved on outside spline connecting sleeve 14, wet type brake block group 94 and piston sleeve 93.Wherein, realize axially locating install on the right side of fixed cover 95 by the collar 91 be arranged in supporting base 2, namely fixed cover 95 cannot be done axially to move right, and is also provided with bearing 96 and supports to rotate between this fixed cover and spline connecting sleeve 14, described wet type brake block group 94 is arranged between fixed cover 95 and piston sleeve 93, plays the stall braking action of spline connecting sleeve 14, do to seal by seal ring between described piston sleeve 93 and supporting base 2 and install, also be formed with oil pocket 10 between simultaneously, and in supporting base 2, be provided with the oil transportation channel 15 that can be communicated with oil pocket and the external world respectively, multiple opening spring groove is left provided with at piston sleeve 93 left end, goring push spring 17 is provided with in each spring groove, on the left of piston sleeve, be provided with fixed plate 92 simultaneously, realize axially locating by the collar 91 be arranged in supporting base 2 on the left of this fixed plate to install, namely fixed plate 92 cannot be done axially to left movement, and expose on the left of the goring push spring 17 of above-mentioned spring groove and contact on fixed plate 92, therefore by precompression that the elastic force of goring push spring can make piston sleeve 93 possess an axis to move right.
Described Parking Brake 9 working method is: when tire stops needing original place parking braking, promote piston sleeve 93 by multiple goring push spring 17 to do axially to move right, and then pushing tow extrudes the wet type brake block group 94 be arranged between piston sleeve 93 and fixed cover 95, and by this wet type brake block group, spline connecting sleeve 14 is braked; When removing parking braking, only need by the oil transportation channel 15 in supporting base 2 to input hydraulic pressure oil in the oil pocket 10 between piston sleeve 93 and supporting base 2, the elastic force making piston sleeve 93 overcome goring push spring 17 under the promotion of hydraulic oil is done axially to be moved to the left, relieve the pushing tow extruding of wet type brake block group 94, now this wheel hub drive can realize motion.
Be provided with supporting sleeve 16 outside described supporting base 2, this supporting sleeve is connected with internal-gear shell 58, thus with the intercropping synchronous axial system of internal-gear shell; The heavily loaded floating seal ring 3 that a pair contamination resistance is stronger is provided with between supporting sleeve 16 and supporting base 2, the suit movable sealing structure between supporting sleeve and supporting base can be formed, this movable sealing structure can adapt to the walking of tire under different kinds of roads situation, and improves working life; Meanwhile, between supporting sleeve 16 and supporting base 2, be also provided with a pair large tapered roller bearing, the weight of tire and stressedly by this, tapered roller bearing and supporting base 2 to be passed on vehicle frame.
Service Brake 5 is provided with outside described supporting sleeve 16 and internal-gear shell 58, this Service Brake can carry out combining to realize trailer function with Manual release device 8, after operation Manual release device 8 drives coupling shaft 13 to throw off, remove the braking of Service Brake 5, tire can by dragging walking.
Described Service Brake is as Fig. 2, shown in Fig. 3, mainly comprise the piston 51 be arranged on outside supporting sleeve 16, and stuffing box gland fills the shell 52 be arranged on outside piston and internal-gear shell 58, and shell realizes sealing by being arranged between the mounting plate 54 of shell right-hand member and internal-gear shell 58, and be also provided with the heavily loaded floating seal ring 3 that a pair contamination resistance is stronger between mounting plate 54 and internal-gear shell 58, it can form the suit movable sealing structure between mounting plate and internal-gear shell, this movable sealing structure can adapt to the walking of tire under different kinds of roads situation, and improve working life, shell 52 is also connected with supporting base 2 by support plate 4.
Described piston 51 left end is provided with multiple opening spring groove left, goring push spring 17 is provided with in each spring groove, the left end that this goring push spring exposes all contacts on support plate 4, therefore by precompression that the elastic force of goring push spring can make piston 51 possess an axis to move right; Be formed with oil pocket 10 between described piston and shell 52, and in shell, be also provided with the oil transportation channel 15 that can be communicated with oil pocket and the external world respectively.
Described shell 52, piston 51 right-hand member, brake chamber is jointly formed between mounting plate 54 and internal-gear shell 58, the connecting rod 53 installed vertically is provided with in this brake chamber, the two ends of connecting rod are separately fixed on shell 52 and mounting plate 54, in brake chamber, be also provided with many groups steel disc 55 alternately and many group movable friction plates 56 simultaneously, this many groups steel disc is simultaneously in tandem on connecting rod 53, this many groups movable friction plate is then corresponding to be respectively inlaid in the outer set spline of internal-gear shell 58, after many groups steel disc 55 alternately and many group movable friction plates 56 are in place in brake chamber, the steel disc of high order end or movable friction plate contact with piston 51 right-hand member of the elastic force pushing tow by goring push spring 17.The mounting structure of above-mentioned this Service Brake 5 can shorten the axial installation dimension of wheel hub drive to greatest extent, and the convenient tire limited at installing space is rationally placed.
This Service Brake 5 is adopt Normally closed type spring braking in design, the multidisc structure of hydraulic pressure release, its working method is: when normally off as shown in Figure 2, positive pressure to be passed to many groups steel disc 55 alternately and movable friction plate 56 by piston 51 by the goring push spring 17 of cylinder type, wherein many group steel discs are fixed on shell 52 by connecting rod 53, many groups movable friction plate 56 is delivered on bead seat by the spline in internal-gear shell 58 by braking force, the service brake state of tire can be kept by organizing the frictional force produced between steel disc 55 and many group movable friction plates 56 more, when hydraulic oil is entered in oil pocket 10 by oil transportation channel 15, and the elastic force making piston 51 overcome goring push spring 17 is as shown in Figure 3 done axially to be moved to the left, and has unclamped the positive pressure between steel disc 55 and movable friction plate 56, has also just relieved the braking state of tire, simultaneously, when braking when walking, the hydraulic oil in oil pocket 10 is led back to fuel tank rapidly by oil transportation channel 15, piston 51 is done axially to move right under the elastic force effect of goring push spring 17, and compress rapidly many group steel discs 55 and many group movable friction plates 56, from and the walking braking of tire can be realized.
Also need between described every adjacent steel disc 55 and movable friction plate 56 to arrange " O " type rubber ring 57, it can ensure the complete brake off that Service Brake 5 is safety quick, this is because the hydraulic oil sometimes between steel disc 55 and movable friction plate 56 can exist sticking phenomenon, and under the impact of the factor such as steel disc 55 and movable friction plate 56 distortion, hydraulic pressure release makes piston 51 do axially to be moved to the left and removes when extruding the pushing tow of many group steel discs 55 and many group movable friction plates 56, but can not ensure throw off completely between steel disc 55 and movable friction plate 56, will causing break part during such wheel tyre walking, local friction is overheated even sinters, damage, so that product failure, and between every adjacent steel disc 55 and movable friction plate 56, all placed " O " type rubber ring 57, when effectively can ensure piston 51 brake off, elastic force by " O " type rubber ring 57 assists the disengagement completely between steel disc 55 and movable friction plate 56.
Simultaneously, due to wheel hub drive longevity of service, as installed space is little, frictional heating when adding service brake between steel disc 55 and movable friction plate 56, easily cause device inside to produce amount of heat to be difficult to be pulled away, cause the quick aging of some Sealings, inefficacy, and the burning of parts thereof, to damage.In order to solve the problem that this has a strong impact on wheel hub drive operational safety, therefore cooling recirculation system 6 is configured with especially on Service Brake, it with heat exchange principle band walking apparatus internal heat, and takes away the dirt such as particle, impurity that Service Brake weares and teares mainly through the periodic duty of cold oil.
Described cooling recirculation system 6 as shown in Figure 3, it comprises the cold oil import 61 be arranged in support plate 4 and the hot oil outlet 64 be arranged in shell 52, also comprise and be arranged on piston 51, support plate 4, grease chamber 63 between supporting base 2 and supporting sleeve 16, and between piston 51 and support plate 4, logical oil-gap 62 is equipped with between piston 51 and supporting sleeve 16, cold oil import 61 is connected with grease chamber 63 mainly through the logical oil-gap 62 between piston 51 with support plate 4, and grease chamber is connected with brake chamber mainly through the logical oil-gap 62 between piston 51 with supporting sleeve 16, and chamber of braking is connected with hot oil outlet 64, simultaneously, supporting sleeve 16 and internal-gear shell 58 are respectively equipped with the oil through 65 of 8 ~ 12 circumference uniform distributions, in supporting sleeve 16 and internal-gear shell 58, oil through 65 quantity of design is identical and one_to_one corresponding communicates, and the oil through 65 on supporting sleeve 16 is also directly communicated with grease chamber 63, the oil through in internal-gear shell 58 is communicated with brake chamber by multiple aperture.
The working procedure of cooling recirculation system 6 according to Fig. 2, Fig. 3 arrow shown in, cold oil enters grease chamber 63 through cold oil import 61, logical oil-gap 62, cold oil one tunnel in this grease chamber directly enters brake chamber through logical oil-gap 62, the oil through 65 of another road on supporting sleeve 16 and internal-gear shell 58 also enters brake chamber, then by the gap between each steel disc 55 and movable friction plate 56, finally the deep fat with heat is taken out of whole wheel hub drive from hot oil outlet 64.Can find out, " O " type rubber ring 57 between steel disc 55 and movable friction plate 56 increases disengagement stroke, reduce pressure loss when cold oil rinses, this flush loop effectively ensure that braking reliability, the Security of whole wheel hub drive, also extends working life.
The present invention, under the prerequisite meeting normal need of work, can shorten the installing space size in tire to greatest extent, improves wheel tyre walking passing capacity.Wherein, Parking Brake 9 and Service Brake 5 gather together and constitute an entirety with plane table thermoconductivity meter, this makes, and axial dimension shortens, overall structure is compacter, multiple functional, working efficiency is high, variable speed controllable, transmitting torque improve operational safety greatly, also, therefore be particularly suitable for using in tire drives, and the built-in multidisc brake structure that Service Brake 5 adopts has advantages such as safeguarding simply, the life-span is long, cost is low, variable speed controllable, synthetic competitive advantages are obvious.Small and exquisite Manual release device 8 is set and can also realizes drag function of walking, avoid also needing in traditional design scheme adopting oil hydraulic motor 1 first to be realized by clutch, the mode that arrives multi-stage planetary gear speed reducer again, act of operation is simple, decreases the bulk of installation too.
Claims (7)
1. a wheel hub drive for the two braking of band, comprise the supporting base (2) be arranged on vehicle frame, be provided with oil hydraulic motor (1) in this supporting base, supporting base one end is provided with plane table thermoconductivity meter, described plane table thermoconductivity meter comprises coupling shaft (13), primary centre wheel (12), two-stage planetary reduction mechanism (11), internal-gear shell (58) and cover plate (7), described coupling shaft (13) moves as axial reciprocating, is provided with the spline connecting sleeve (14) doing to be in transmission connection between the output shaft of this coupling shaft input end and oil hydraulic motor (1), and coupling shaft (13) is provided with primary centre wheel (12) be in transmission connection, described two-stage planetary reduction mechanism (11) takes turns (12) respectively with primary centre, the ring gear of internal-gear shell (58) is meshed, and (58) are provided with wheel hub to this internal-gear shell, described cover plate (7) is connected in internal-gear shell (58), and is enclosed in internal-gear shell (58) by coupling shaft (13), primary centre wheel (12) and two-stage planetary reduction mechanism (11), be provided with the supporting sleeve (16) of stuffing box gland dress outside described supporting base (2), this supporting sleeve is connected with internal-gear shell (58), is provided with the bearing rotating and support between supporting sleeve (16) and supporting base (2), Parking Brake (9) is provided with between described supporting base (2) and spline connecting sleeve (14), Service Brake (5) is provided with outside described supporting sleeve (16) and internal-gear shell (58), this Service Brake comprises piston (51), shell (52), organize steel disc (55) more and organize movable friction plate (56) more, this shell (52) is connected on supporting base (2) by support plate (4), described shell (52), brake chamber is formed between piston (51) and internal-gear shell (58), be provided with many groups steel disc (55) alternately and organize movable friction plate (56) vertically in this brake chamber more, organize steel disc (55) simultaneously on the connecting rod (53) installed vertically in brake chamber in tandem more, organize movable friction plate (56) is inlaid in the set spline of internal-gear shell (58) outward respectively, it is characterized in that:
A, between described every adjacent steel disc (55) and movable friction plate (56), be equipped with rubber ring (57);
B, described Service Brake (5) are also provided with cooling recirculation system (6), this cooling recirculation system comprises the cold oil import (61) be arranged in support plate (4) and the hot oil outlet (64) be arranged in shell (52), also comprises and is arranged on piston (51), support plate (4), grease chamber (63) between supporting base (2) and supporting sleeve (16); Described cold oil import (61), grease chamber (63) are connected with brake chamber, and this brake chamber is connected with hot oil outlet (64) again; Described supporting sleeve (16) and internal-gear shell (58) are respectively equipped with the oil through (65) that multiple correspondence communicates, this oil through is connected with grease chamber (63), chamber of braking respectively.
2. the wheel hub drive of the two braking of band according to claim 1, it is characterized in that described supporting sleeve (16) and internal-gear shell (58) are respectively equipped with the oil through (65) that correspondence communicates is 8 ~ 12, oil through (65) on this supporting sleeve (16) is communicated with grease chamber (63), and the oil through (65) in this internal-gear shell (58) is communicated with brake chamber by multiple aperture.
3. the wheel hub drive of the two braking of band according to claim 1, it is characterized in that described coupling shaft (13) output terminal is provided with Manual release device (8), this Manual release device comprises the disengagement axle (81) do axial reciprocating movement, this disengagement axle one end is connected on coupling shaft (13) output terminal, the other end stretches out cover plate (7) and exposes, seal ring is provided with between disengagement axle (81) and cover plate (7), throw off outside axle (81) and be set with Returnning spring (82), these Returnning spring two ends difference pushing tow is on the outer shoulder of throwing off axle (81) and cover plate (7).
4. the wheel hub drive of the two braking of band according to claim 1, it is characterized in that piston (51) suit of described Service Brake (5) is arranged on supporting sleeve (16) outward, and move as axial reciprocating, be provided with the spring groove of multiple outward opening in this piston (51), goring push spring (17) is all set in each spring groove; Described shell (52) stuffing box gland dress is arranged on piston (51) and internal-gear shell (58) outward, form oil pocket (10) between this shell (52) and piston (51), be also provided with in shell (52) and be communicated with oil pocket (10) and extraneous oil transportation channel (15) respectively; This support plate (4) contacts with goring push spring (17) exposed junction in described spring groove.
5. the wheel hub drive of the two braking of band according to claim 1, is characterized in that described Parking Brake (9) comprises and is sleeved on spline connecting sleeve (14) fixed cover outward (95), wet type brake block group (94) and piston sleeve (93); Described fixed cover (95) is made axially locating and is installed, the bearing (96) that being provided with between this fixed cover and spline connecting sleeve (14) rotates supports; Described wet type brake block group (94) is arranged between fixed cover (95) and piston sleeve (93); The intercropping of described piston sleeve and supporting base (2) seals installs, and is also formed with oil pocket (10) between the two, and in supporting base (2), be provided with the oil transportation channel (15) being communicated with oil pocket (10) and the external world respectively; Be provided with the spring groove of outward opening in described piston sleeve (93), and goring push spring (17) is set in described spring groove; Described piston sleeve (93) side is provided with the fixed plate (92) that axially locating is installed, and this fixed plate contacts with goring push spring (17) exposed junction in spring groove.
6. the wheel hub drive of the two braking of band according to claim 1, is characterized in that being provided with the heavily loaded floating seal ring (3) forming stuffing box gland assembling structure between described supporting base (2) and supporting sleeve (16).
7. the wheel hub drive of the two braking of the band according to any one of claim 1 ~ 6, is characterized in that being provided with the heavily loaded floating seal ring (3) forming stuffing box gland assembling structure between described shell (52) and internal-gear shell (58).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210526230.2A CN103032560B (en) | 2012-12-10 | 2012-12-10 | Novel double-braking rim driving device |
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| CN201210526230.2A CN103032560B (en) | 2012-12-10 | 2012-12-10 | Novel double-braking rim driving device |
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| CN103032560A CN103032560A (en) | 2013-04-10 |
| CN103032560B true CN103032560B (en) | 2015-06-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103277242B (en) * | 2013-04-16 | 2015-06-10 | 意宁液压股份有限公司 | Hand-operated stepless variable plunger hydraulic motor |
| CN103307123A (en) * | 2013-06-27 | 2013-09-18 | 江苏赫夫特齿轮制造有限公司 | Hydraulic motor driven splined coupling planetary structure |
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| CN106555838B (en) * | 2016-12-01 | 2019-03-05 | 徐州科源液压股份有限公司 | Double brake hoisting speed reducer |
| CN106564824B (en) * | 2016-12-29 | 2019-02-19 | 意宁液压股份有限公司 | Man-riding winch with dual brake |
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| CN110369977B (en) * | 2019-07-25 | 2021-12-07 | 浙江耐磨达科技有限公司 | Machining process of disc type brake lining |
| CN110541929B (en) * | 2019-08-29 | 2024-04-30 | 上海布拓传动系统设备有限公司 | Dual-functional hub reduction gear with service braking and parking braking are as an organic whole |
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