CN112721626A - Commercial vehicle transmission shaft intermediate bearing assembly and machining process - Google Patents

Commercial vehicle transmission shaft intermediate bearing assembly and machining process Download PDF

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Publication number
CN112721626A
CN112721626A CN202110149611.2A CN202110149611A CN112721626A CN 112721626 A CN112721626 A CN 112721626A CN 202110149611 A CN202110149611 A CN 202110149611A CN 112721626 A CN112721626 A CN 112721626A
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China
Prior art keywords
bearing
seat
limit
commercial vehicle
deep groove
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Pending
Application number
CN202110149611.2A
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Chinese (zh)
Inventor
公彦军
李萌芳
郭旺喜
高蕊
傅运军
张玉辛
管伟强
李江辉
周毅展
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Sinotruk Jinan Power Co Ltd
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Sinotruk Jinan Power Co Ltd
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Priority to CN202110149611.2A priority Critical patent/CN112721626A/en
Publication of CN112721626A publication Critical patent/CN112721626A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/22Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24Arrangements of mountings for shafting

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)

Abstract

The invention provides a middle support assembly of a transmission shaft of a commercial vehicle and a processing technology, wherein the support assembly comprises a support seat, a buffer disc, a bearing seat and a deep groove ball bearing; the supporting seat, the buffer disc and the bearing seat are of an integrated structure; the inner diameter of the bearing seat and the outer diameter of the outer ring of the deep groove ball bearing are both arc-surface structures and form a joint bearing structure, and a limiting mechanism for limiting the rotation of the outer ring of the deep groove ball bearing is arranged between the bearing seat and the deep groove ball bearing and can compensate the influence of assembly errors on the intermediate support assembly.

Description

Commercial vehicle transmission shaft intermediate bearing assembly and machining process
Technical Field
The invention relates to the technical field of a bearing assembly, in particular to a middle bearing assembly of a transmission shaft of a commercial vehicle and a processing technology, which is used for transmission shafts of trucks, dumpers and partial special vehicles.
Background
Due to the long wheel base of the truck, the dump truck and part of special vehicles, in order to improve the critical rotating speed of the transmission shaft, avoid resonance and consider the requirement of overall arrangement of the whole vehicle, 2 to 3 transmission shafts are generally arranged, and at the moment, an intermediate support assembly is required to be added. Due to the influence of matching design errors, manufacturing machining errors and assembly errors of the whole vehicle, the intermediate support assembly is often subjected to additional moment after being installed on the whole vehicle, so that abnormal abrasion is caused.
Disclosure of Invention
The invention aims to provide a middle bearing assembly of a transmission shaft of a commercial vehicle and a machining process, and solves the problem that the performance of the middle bearing assembly is influenced by matching design errors, manufacturing errors and assembly errors of the whole vehicle.
In order to achieve the purpose, the invention provides the following technical scheme: the invention provides a middle bearing assembly of a transmission shaft of a commercial vehicle, which comprises a supporting seat, a buffer disc, a bearing seat and a deep groove ball bearing, wherein the supporting seat is arranged on the middle bearing assembly; the supporting seat, the buffer disc and the bearing seat are of an integrated structure; the inner diameter of the bearing seat and the outer diameter of the outer ring of the deep groove ball bearing are both arc surface structures and form a joint bearing structure, and a limiting mechanism for limiting the rotation of the outer ring of the deep groove ball bearing is arranged between the bearing seat and the deep groove ball bearing.
As a further improvement of the technical scheme, the inner diameter of the bearing seat is provided with a limiting step, the outer ring of the deep groove ball bearing is provided with a limiting groove, and the limiting mechanism is arranged in the limiting step and the limiting groove.
As a further improvement of the technical scheme, the number of the limiting mechanisms is two, and the two limiting mechanisms are arranged in a bilateral symmetry mode.
As a further improvement of the above technical scheme, the limiting mechanism comprises a limiting steel ball and a limiting spring; the limiting steel balls are arranged at two ends of the limiting spring.
As a further improvement of the technical scheme, a plurality of damping grooves are arranged on the buffer disc.
As a further improvement of the above technical solution, four damping grooves are arranged along four directions of the circumference of the buffer disc.
As a further improvement of the technical scheme, the support seat is made of aluminum alloy.
As a further improvement of the technical scheme, the buffer disc is made of polyurethane.
As a further improvement of the technical scheme, the bearing seat is made of steel.
The invention provides a processing technology of a middle support assembly of a transmission shaft of a commercial vehicle, wherein a supporting seat and a bearing seat are respectively and independently processed, and the inner diameter of the bearing seat is ground into an arc surface and two bilaterally symmetrical limiting steps are machined; the supporting seat and the bearing seat are integrally vulcanized and molded with the polyurethane material of the buffer disc after being manufactured; and grinding the outer diameter of the outer ring of the deep groove ball bearing into a cambered surface, machining two limiting grooves which are bilaterally symmetrical, and assembling the deep groove ball bearing with the supporting seat, the buffer disc and the bearing seat vulcanization assembly after a limiting spring and two limiting steel balls are placed into each limiting groove.
Compared with the prior art, the invention has the beneficial effects that: the joint bearing structure formed by the inner diameter of the steel bearing seat and the outer diameter of the outer ring of the deep groove ball bearing can compensate the influence of assembly errors on the middle supporting assembly, and the limiting mechanism can limit the outer ring of the deep groove ball bearing to only swing and cannot rotate in the circumferential direction.
Drawings
FIG. 1 is a front view, partially in section, of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a partial cutaway isometric view of the present invention;
FIG. 4 is a left side elevational view, in full section, of the present invention;
fig. 5 is a top view of the present invention.
Reference numerals: the device comprises a support seat 1, a buffer disc 2, a bearing seat 3, a deep groove ball bearing 4, a limiting steel ball 5, a limiting spring 6 and a damping groove 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5 together, on one hand, the invention discloses a middle support assembly of a transmission shaft of a commercial vehicle, which comprises a support seat 1, a buffer disc 2, a bearing seat 3, a deep groove ball bearing 4 and a limiting mechanism; the supporting seat 1, the buffer disc 2 and the bearing seat 3 are of an integrated structure, and the supporting seat 1, the buffer disc 2 and the bearing seat 3 are vulcanized into a whole when being integrally formed, wherein the supporting seat 1 is made of aluminum alloy, and the supporting seat 1 is made of aluminum alloy, so that the weight of the assembly can be reduced; the buffer disc 2 is made of polyurethane, and the corrosion resistance and the high resilience of the buffer disc 2 can be improved by adopting the polyurethane; the bearing seat 3 is made of steel.
As a further improvement of the technical scheme, the inner diameter of the bearing seat 3 and the outer diameter of the outer ring of the deep groove ball bearing 4 are both arc structures and form a joint bearing structure, and after the middle support assembly is installed on the whole vehicle, the deep groove ball bearing 4 can swing freely to compensate the influence of assembly errors on the middle support assembly, so that abnormal abrasion caused by additional moment on the buffer disc 2 is avoided.
As a further improvement of the above technical solution, a limiting mechanism is arranged between the bearing seat 3 and the deep groove ball bearing 4 for limiting the rotation of the outer ring of the deep groove ball bearing 4, wherein a limiting step is arranged on the inner diameter of the bearing seat 3, a limiting groove is arranged on the outer ring of the deep groove ball bearing 4, and the limiting mechanism is arranged in the limiting step and the limiting groove.
As a further improvement of the technical scheme, the number of the limiting mechanisms is two, and the two limiting mechanisms are arranged in a bilateral symmetry manner; the limiting mechanism comprises a limiting steel ball 5 and a limiting spring 6; the limiting steel balls 5 are arranged at two ends of the limiting springs 6, the outer ring of the deep groove ball bearing 4 can only swing under the action of the limiting steel balls 5 and the limiting springs 6 in the working process, and the rotation of the outer ring of the deep groove ball bearing 4 can be limited due to the fact that the outer ring can not rotate circumferentially.
As a further improvement of the above technical solution, a plurality of damping grooves 7 are provided on the buffer disc 2, four damping grooves 7 are provided along four directions of the circumference of the buffer disc 2, and the damping grooves 7 play a role in damping.
The invention discloses a processing technology of a commercial vehicle transmission shaft intermediate support assembly, wherein a supporting seat and a bearing seat are respectively and independently processed, and the inner diameter of the bearing seat needs to be ground into an arc surface and two bilaterally symmetrical limiting steps are machined; the supporting seat and the bearing seat are vulcanized and molded together with the polyurethane material of the buffer disc into a whole after being manufactured; and grinding the outer diameter of the outer ring of the deep groove ball bearing into a cambered surface, machining two limiting grooves which are bilaterally symmetrical, and assembling the deep groove ball bearing with the supporting seat, the buffer disc and the bearing seat vulcanization assembly after a limiting spring and two limiting steel balls are placed into each limiting groove.
In conclusion, the joint bearing structure formed by the inner diameter of the steel bearing seat and the outer diameter of the outer ring of the deep groove ball bearing can compensate the influence of assembly errors on the middle bearing assembly, and the limiting spring and the limiting steel ball can limit the outer ring of the deep groove ball bearing to only swing and not to circumferentially rotate.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1.一种商用车传动轴中间支承总成,其特征在于,包括支撑座(1)、缓冲盘(2)、轴承座(3)和深沟球轴承(4);所述支撑座(1)、缓冲盘(2)和轴承座(3)为一体结构;所述轴承座(3)的内径和深沟球轴承(4)的外圈外径均为弧面结构并形成关节轴承结构,所述轴承座(3)和深沟球轴承(4)之间设置有限制所述深沟球轴承(4)外圈转动的限位机构。1. A commercial vehicle drive shaft intermediate support assembly, characterized in that it comprises a support seat (1), a buffer disk (2), a bearing seat (3) and a deep groove ball bearing (4); the support seat (1) ), the buffer disc (2) and the bearing seat (3) are integrated; the inner diameter of the bearing seat (3) and the outer diameter of the outer ring of the deep groove ball bearing (4) are both arc structures and form a joint bearing structure, A limiting mechanism for restricting the rotation of the outer ring of the deep groove ball bearing (4) is arranged between the bearing seat (3) and the deep groove ball bearing (4). 2.根据权利要求1所述的一种商用车传动轴中间支承总成,其特征在于,所述轴承座(3)的内径设置有限位台阶,所述深沟球轴承(4)的外圈设置有限位凹槽,所述限位机构设置于所述限位台阶和限位凹槽内。2 . The intermediate support assembly of a commercial vehicle transmission shaft according to claim 1 , wherein the inner diameter of the bearing seat ( 3 ) is provided with a limiting step, and the outer ring of the deep groove ball bearing ( 4 ) has a limit step. 3 . A limit groove is provided, and the limit mechanism is arranged in the limit step and the limit groove. 3.根据权利要求2所述的一种商用车传动轴中间支承总成,其特征在于,所述限位机构设置有两个,两个限位机构左右对称设置。3 . The intermediate support assembly for a drive shaft of a commercial vehicle according to claim 2 , wherein there are two limiting mechanisms, and the two limiting mechanisms are arranged symmetrically from left to right. 4 . 4.根据权利要求3所述的一种商用车传动轴中间支承总成,其特征在于,所述限位机构包括限位钢球(5)和限位弹簧(6);所述限位钢球(5)设置于所述限位弹簧(6)的两端。4. A commercial vehicle drive shaft intermediate support assembly according to claim 3, wherein the limit mechanism comprises a limit steel ball (5) and a limit spring (6); the limit steel The balls (5) are arranged at both ends of the limit spring (6). 5.根据权利要求1所述的一种商用车传动轴中间支承总成,其特征在于,所述缓冲盘(2)上设置有若干个减震槽(7)。5 . The intermediate support assembly of a commercial vehicle transmission shaft according to claim 1 , wherein a plurality of shock-absorbing grooves ( 7 ) are provided on the buffer plate ( 2 ). 6 . 6.根据权利要求5所述的一种商用车传动轴中间支承总成,其特征在于,所述减震槽(7)沿所述缓冲盘(2)的周圈上下左右四个方向设置有四个。6 . The intermediate support assembly of a commercial vehicle transmission shaft according to claim 5 , wherein the shock-absorbing groove ( 7 ) is provided along the circumference of the buffer disc ( 2 ) in four directions: up, down, left, and right. 7 . four. 7.根据权利要求1所述的一种商用车传动轴中间支承总成,其特征在于,所述支撑座(1)的材质为铝合金。7 . The intermediate support assembly of a commercial vehicle transmission shaft according to claim 1 , wherein the material of the support seat ( 1 ) is aluminum alloy. 8 . 8.根据权利要求1所述的一种商用车传动轴中间支承总成,其特征在于,所述缓冲盘(2)的材质为聚氨酯。8 . The intermediate support assembly of a commercial vehicle transmission shaft according to claim 1 , wherein the buffer disc ( 2 ) is made of polyurethane. 9 . 9.根据权利要求1所述的一种商用车传动轴中间支承总成,其特征在于,所述轴承座(3)为钢材质。9 . The intermediate support assembly of a commercial vehicle drive shaft according to claim 1 , wherein the bearing seat ( 3 ) is made of steel. 10 . 10.一种商用车传动轴中间支承总成的加工工艺,其特征在于,支撑座和轴承座分别单独加工,轴承座内径磨削为弧面并机加工左右对称两个限位台阶;支撑座和轴承座完成制造后与缓冲盘的聚氨酯材料硫化成型为一体;深沟球轴承外圈外径磨削为弧面并机加工左右对称两个限位凹槽,每个限位凹槽中放入一个限位弹簧和两个限位钢球后,将深沟球轴承与支撑座、缓冲盘和轴承座硫化总成装配。10. A processing technology for the intermediate support assembly of a commercial vehicle drive shaft, characterized in that the support seat and the bearing seat are processed separately, the inner diameter of the bearing seat is ground into an arc surface and two limit steps are machined symmetrically on the left and right; the support seat The outer diameter of the outer ring of the deep groove ball bearing is ground into an arc surface and two limit grooves are machined symmetrically on the left and right, and each limit groove is placed in the After inserting a limit spring and two limit steel balls, assemble the deep groove ball bearing with the support seat, buffer disc and bearing seat vulcanized assembly.
CN202110149611.2A 2021-02-03 2021-02-03 Commercial vehicle transmission shaft intermediate bearing assembly and machining process Pending CN112721626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110149611.2A CN112721626A (en) 2021-02-03 2021-02-03 Commercial vehicle transmission shaft intermediate bearing assembly and machining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110149611.2A CN112721626A (en) 2021-02-03 2021-02-03 Commercial vehicle transmission shaft intermediate bearing assembly and machining process

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CN112721626A true CN112721626A (en) 2021-04-30

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872252A (en) * 1956-12-10 1961-07-05 Borg Warner Bearing positioning mechanism for propeller shaft
JP2004019726A (en) * 2002-06-13 2004-01-22 Ntn Corp Reverse input cutoff clutch
CN202623929U (en) * 2012-07-02 2012-12-26 中国重汽集团济南动力有限公司 Intermediate driving shaft bearing assembly for heavy truck
CN202827146U (en) * 2012-09-03 2013-03-27 中国重汽集团济南动力有限公司 Intermediate transmission shaft assembly for heavy-duty car
CN104328536A (en) * 2014-11-02 2015-02-04 经纬纺织机械股份有限公司 Anti-inversion device for transmission of middle roller and rear roller on spinning frame
CN204458981U (en) * 2015-02-13 2015-07-08 湖北省丹江口丹传汽车传动轴有限公司 A kind of vehicle driving shaft assembly intermediate support beam
CN205930273U (en) * 2016-08-26 2017-02-08 东风商用车有限公司 Fixed intermediate support structure
CN107457650A (en) * 2017-09-26 2017-12-12 无锡正大轴承机械制造股份有限公司 A kind of bearing outer ring chuck
CN212195092U (en) * 2020-04-26 2020-12-22 江铃控股有限公司 Intermediate support structure of automobile transmission shaft and automobile

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872252A (en) * 1956-12-10 1961-07-05 Borg Warner Bearing positioning mechanism for propeller shaft
JP2004019726A (en) * 2002-06-13 2004-01-22 Ntn Corp Reverse input cutoff clutch
CN202623929U (en) * 2012-07-02 2012-12-26 中国重汽集团济南动力有限公司 Intermediate driving shaft bearing assembly for heavy truck
CN202827146U (en) * 2012-09-03 2013-03-27 中国重汽集团济南动力有限公司 Intermediate transmission shaft assembly for heavy-duty car
CN104328536A (en) * 2014-11-02 2015-02-04 经纬纺织机械股份有限公司 Anti-inversion device for transmission of middle roller and rear roller on spinning frame
CN204458981U (en) * 2015-02-13 2015-07-08 湖北省丹江口丹传汽车传动轴有限公司 A kind of vehicle driving shaft assembly intermediate support beam
CN205930273U (en) * 2016-08-26 2017-02-08 东风商用车有限公司 Fixed intermediate support structure
CN107457650A (en) * 2017-09-26 2017-12-12 无锡正大轴承机械制造股份有限公司 A kind of bearing outer ring chuck
CN212195092U (en) * 2020-04-26 2020-12-22 江铃控股有限公司 Intermediate support structure of automobile transmission shaft and automobile

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Application publication date: 20210430