CN220581647U - Novel bearing arrangement structure - Google Patents
Novel bearing arrangement structure Download PDFInfo
- Publication number
- CN220581647U CN220581647U CN202322090386.7U CN202322090386U CN220581647U CN 220581647 U CN220581647 U CN 220581647U CN 202322090386 U CN202322090386 U CN 202322090386U CN 220581647 U CN220581647 U CN 220581647U
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- China
- Prior art keywords
- gear
- shaft
- driving gear
- speed reducer
- bearing
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
The utility model relates to a novel bearing arrangement structure, which comprises a speed reducer shell and a two-shaft shafting assembly, wherein one end of the speed reducer shell is integrally arranged with a gear shaft and a motor shell, the other end of the speed reducer shell is connected with a speed reducer cover through a bolt, the two-shaft shafting assembly is arranged at the integrated position of the speed reducer shell and the motor shell and is coaxial with the gear shaft, a driven gear and a driving gear are arranged on the two shafts, the driving gear is integrally designed at the end parts of the two shafts, a bearing unit is arranged in the driving gear, and the gear shaft is assembled with the driving gear in a bearing inner hole installation mode; the utility model adopts the mode of assembling the gear shaft in the bearing inner hole, saves the axial arrangement space and solves the problems of difficult adjustment of bearing play and the like.
Description
Technical Field
The utility model belongs to the technical field of electric drive axles of commercial vehicles, and particularly relates to a novel bearing arrangement structure.
Background
The two sides of the gear shaft of the conventional electric drive axle are provided with double tapered roller bearings, so that the space requirement for bearing arrangement is large, and the high integration is not facilitated. The traditional electric drive axle tapered roller bearing is difficult to adjust bearing clearance assembly.
Therefore, there is an urgent need to design a novel bearing arrangement structure to solve the above-mentioned problems.
Disclosure of Invention
In view of the problems in the prior art, it is an object of the present utility model to provide a novel bearing arrangement.
The technical scheme adopted for solving the technical problems is as follows: the novel bearing arrangement structure comprises a speed reducer shell, a motor shell and a two-shaft system assembly, wherein the speed reducer shell, a gear shaft and the motor shell are of an integrated structure;
the two shafts of the two-shaft system assembly are provided with a driven gear and a driving gear, the driving gear is arranged at the end part of the first end of the two shafts, the driving gear is provided with a central hole, the aperture of the driving gear is larger than the shaft diameter of the gear shaft, the gear shaft is provided with a bearing unit, and the bearing unit is arranged in the central hole of the driving gear.
Preferably, the speed reducer shell is connected with the speed reducer cover through bolts, and the speed reducer cover is provided with a bearing cover plate.
Preferably, the driven gear is provided with a four-point contact ball bearing, and the four-point contact ball bearing is mounted on the two shafts and is positioned at the gearbox cover.
Preferably, the four-point contact ball bearing is provided with a thrust washer, and the outer diameter of the thrust washer is larger than the inner diameter of the four-point contact ball bearing.
Preferably, a lock nut is mounted to the end of the second end of the two shafts.
Preferably, the driven gear is connected to the two shafts through splines.
Preferably, a peripheral groove is formed in the central inner hole of the driving gear, and an elastic retainer ring is arranged in the peripheral groove.
The utility model has the following beneficial effects:
1) The gear shaft adopts a bearing inner hole installation mode, so that the axial space is saved compared with a conventional arrangement scheme, the length of a shaft system is shortened, the weight of parts is reduced, and the product cost is reduced;
2) The problems of large arrangement space, difficult bearing clearance adjustment and the like of the traditional tapered roller bearing are effectively solved, and the assembly manufacturability is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged schematic view of the bearing installation at a of the present utility model.
In the figure: 1-a reducer housing; 2-gear shaft; 3-a drive gear; 4-a reduction gearbox cover; 5-a bearing cover plate; 6-thrust washers; 7-two axes; 8-locking nuts; 9-four point contact ball bearings; 10-driven gear; 11-a motor housing; 12-a bearing unit; 13-circlips; a-partial enlarged view.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described in further detail below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, a novel bearing arrangement structure comprises a speed reducer shell 1 and a two-shaft system assembly, wherein one end of the speed reducer shell 1 is integrally designed with a gear shaft 2 and a motor shell 11, the other end of the speed reducer shell is connected with a speed reducer cover 4 through bolts, and a bearing cover plate 5 is arranged on the speed reducer cover 4.
The two-shaft system assembly is arranged at the integration position of the speed reducer shell 1 and the motor shell 11 and is coaxial with the gear shaft 2, the two shafts 7 are provided with driven gears 10 and driving gears 3, and the driving gears 3 are integrated at the end part of the first end of the two shafts 7; the driving gear 3 is provided with a central hole, the aperture of the driving gear is larger than the shaft diameter of the gear shaft 2, the gear shaft 2 is provided with a bearing unit 12, and the bearing unit 12 is assembled in the central hole of the driving gear 3.
One side of the driven gear 10 is provided with a four-point contact ball bearing 9, the four-point contact ball bearing 9 is arranged on the two shafts 7 and is positioned at the reduction gearbox cover 4, the left side of the four-point contact ball bearing 9 is provided with a thrust washer 6, and the outer diameter of the thrust washer 6 is larger than the inner diameter of the four-point contact ball bearing 9.
The end of the second end of the two shafts 7 is provided with a lock nut 8, a driven gear 10 is connected on the two shafts 7 through a spline, the central inner hole of the driving gear 3 is provided with a peripheral groove, and an elastic retainer ring 13 is arranged in the groove.
The driven gear 10 is an input stage driven cylindrical gear; the driving gear 3 is an output stage driving cylindrical gear.
The present utility model is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions.
The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.
Claims (7)
1. The novel bearing arrangement structure is characterized by comprising a speed reducer shell, a motor shell and a two-shaft system assembly, wherein the speed reducer shell, a gear shaft and the motor shell are of an integrated structure;
the two shafts of the two-shaft system assembly are provided with a driven gear and a driving gear, the driving gear is arranged at the end part of the first end of the two shafts, the driving gear is provided with a central hole, the aperture of the driving gear is larger than the shaft diameter of the gear shaft, the gear shaft is provided with a bearing unit, and the bearing unit is arranged in the central hole of the driving gear.
2. The novel bearing arrangement according to claim 1, wherein the reducer housing is bolted to a reducer casing cover, the reducer casing cover being provided with a bearing cover plate.
3. The novel bearing arrangement of claim 1, wherein the driven gear is provided with four-point contact ball bearings mounted on a two-shaft at the reduction box cover.
4. A novel bearing arrangement according to claim 3, wherein the four-point contact ball bearing is provided with thrust washers having an outer diameter greater than the inner diameter of the four-point contact ball bearing.
5. The novel bearing arrangement of claim 1, wherein the second end of the two shafts is mounted with a lock nut at an end thereof.
6. The novel bearing arrangement of claim 1, wherein the driven gear is splined to the two shafts.
7. The novel bearing arrangement of claim 1, wherein the central bore of the drive gear is provided with a circumferential groove in which a circlip is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322090386.7U CN220581647U (en) | 2023-08-04 | 2023-08-04 | Novel bearing arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322090386.7U CN220581647U (en) | 2023-08-04 | 2023-08-04 | Novel bearing arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581647U true CN220581647U (en) | 2024-03-12 |
Family
ID=90107905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322090386.7U Active CN220581647U (en) | 2023-08-04 | 2023-08-04 | Novel bearing arrangement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581647U (en) |
-
2023
- 2023-08-04 CN CN202322090386.7U patent/CN220581647U/en active Active
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| GR01 | Patent grant |