CN112721626A - Commercial vehicle transmission shaft intermediate bearing assembly and machining process - Google Patents
Commercial vehicle transmission shaft intermediate bearing assembly and machining process Download PDFInfo
- 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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- Prior art keywords
- bearing
- limiting
- commercial vehicle
- seat
- transmission shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000003754 machining Methods 0.000 title claims description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
Landscapes
- 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
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. A commercial vehicle transmission shaft intermediate support assembly is characterized by comprising a support seat (1), a buffer disc (2), a bearing seat (3) and a deep groove ball bearing (4); the supporting seat (1), the buffer disc (2) and the bearing seat (3) are of an integrated structure; 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-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 (4) is arranged between the bearing seat (3) and the deep groove ball bearing (4).
2. The commercial vehicle transmission shaft intermediate support assembly according to claim 1, wherein the inner diameter of the bearing seat (3) is provided with a limit step, the outer ring of the deep groove ball bearing (4) is provided with a limit groove, and the limit mechanism is arranged in the limit step and the limit groove.
3. The intermediate support assembly for the transmission shaft of the commercial vehicle as claimed in claim 2, wherein the number of the limiting mechanisms is two, and the two limiting mechanisms are arranged in bilateral symmetry.
4. The commercial vehicle transmission shaft intermediate bearing assembly according to claim 3, wherein 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 spring (6).
5. A commercial vehicle propeller shaft intermediate bearing assembly according to claim 1, characterised in that the damping disk (2) is provided with a number of damping grooves (7).
6. The intermediate bearing assembly of a transmission shaft of a commercial vehicle according to claim 5, characterized in that the shock absorption grooves (7) are four in four directions, namely, up, down, left and right, along the circumference of the buffer disc (2).
7. The intermediate bearing assembly for the transmission shaft of the commercial vehicle as claimed in claim 1, wherein the material of the support base (1) is aluminum alloy.
8. The intermediate bearing assembly for a propeller shaft of a commercial vehicle according to claim 1, wherein the material of the cushion disk (2) is polyurethane.
9. The intermediate bearing assembly for the transmission shaft of a commercial vehicle according to claim 1, characterized in that the bearing seat (3) is made of steel.
10. A processing technology for a middle support assembly of a transmission shaft of a commercial vehicle is characterized in that 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 limiting steps which are bilaterally symmetrical 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.
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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112721626A true CN112721626A (en) | 2021-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110149611.2A Pending CN112721626A (en) | 2021-02-03 | 2021-02-03 | Commercial vehicle transmission shaft intermediate bearing assembly and machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112721626A (en) |
Citations (9)
| 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 | Middle supporting structure of automobile transmission shaft and automobile |
-
2021
- 2021-02-03 CN CN202110149611.2A patent/CN112721626A/en active Pending
Patent Citations (9)
| 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 | Middle supporting structure of automobile transmission shaft and automobile |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
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| RJ01 | Rejection of invention patent application after publication |