CN216683946U - Electronic rear axle assembly one-level driven gear location structure - Google Patents
Electronic rear axle assembly one-level driven gear location structure Download PDFInfo
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- CN216683946U CN216683946U CN202123145012.8U CN202123145012U CN216683946U CN 216683946 U CN216683946 U CN 216683946U CN 202123145012 U CN202123145012 U CN 202123145012U CN 216683946 U CN216683946 U CN 216683946U
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- driven gear
- rear axle
- axle assembly
- positioning structure
- shaft
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- 230000005540 biological transmission Effects 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model discloses a first-stage driven gear positioning structure of an electric rear axle assembly. The novel positioning structure of the bridge primary-secondary driven gear can effectively reduce 17-order noise, meet the NVH requirement of the whole vehicle at a low speed (33-25km/h) and rotate on road conditions, further improve the driving quality to the maximum extent, and has the advantages of simple structure, low cost, convenient implementation, improvement of the NVH performance of a rear axle assembly and improvement of brand charm.
Description
Technical Field
The utility model relates to the technical field of automobile transmission, in particular to a rear axle technology of an electric vehicle.
Background
Electronic rear axle assembly still can transmit motor power to whole car when guaranteeing transmission/switching power as whole car power transmission unit, and electronic rear axle owner subtracts gear precision and cooperation clearance control improper, can lead to all kinds of abnormal sounds, if: the locked vehicle interior noise mainly comprises 8.75-order noise and 17-order noise through measurement and analysis, and the subjective feeling is the motor howling. But at present there is no rear axle structure that can effectively solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the technical problem of realizing a novel positioning mode of a main-reduction first-stage driven gear of an electric bridge, solving the NVH problem of a rear axle assembly and improving the driving comfort.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an electronic rear axle assembly one-level driven gear location structure, two epaxial one-level driven gear, retaining ring and the bearing of being fixed with in proper order of dabber, one-level driven gear assembles at the one-level shoulder of two dabbers, the retaining ring pressure equipment is at the second grade shoulder of two dabbers, retaining ring shoulder is fixed to the bearing.
The two-shaft mandrel is in spline connection with the primary driven gear.
And the inner ring of the primary driven gear is provided with a groove for embedding the retainer ring.
The two-shaft mandrel, the primary driven gear, the retainer ring and the bearing are all coaxial.
The novel positioning structure of the bridge primary-secondary driven gear can effectively reduce 17-order noise, meet the NVH requirement of the whole vehicle at a low speed (33-25km/h) and rotate on road conditions, further improve the driving quality to the maximum extent, and has the advantages of simple structure, low cost, convenient implementation, improvement of the NVH performance of a rear axle assembly and improvement of brand charm.
Drawings
The following is a brief description of the contents of each figure and the symbols in the figures in the description of the utility model:
FIG. 1 is an exploded view of a primary driven gear positioning structure of an electric rear axle assembly;
FIG. 2 is a sectional view of a primary driven gear positioning structure of the electric rear axle assembly;
FIG. 3 is a schematic structural view of a two-axis spindle in a first-stage driven gear positioning structure of the electric rear axle assembly;
FIG. 4 is a schematic structural view of a primary driven gear in a primary driven gear positioning structure of the electric rear axle assembly;
FIG. 5 is a schematic view of a retainer ring structure in a primary driven gear positioning structure of the electric rear axle assembly;
FIG. 6 is a schematic view of a bearing structure in a first-stage driven gear positioning structure of the electric rear axle assembly;
the labels in the above figures are: 1. a biaxial mandrel; 2. a primary driven gear; 3. a retainer ring; 4. and a bearing.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
As shown in fig. 1 and 2, the novel positioning structure of the bridge main-reduction first-stage driven gear comprises a two-shaft mandrel 1, a first-stage driven gear 2, a retainer ring 3 and a bearing 4, wherein during installation, the first-stage driven gear 2 is assembled to a shoulder part (in spline connection) of the two-shaft mandrel 1, and the two are coaxial; then the retainer ring 3 is pressed on the shoulder part of the two-shaft mandrel 1, and the two are coaxial; then the bearing 4 is pressed on the shoulder part of the retainer ring 3, and the bearing and the retainer ring are coaxial; the four parts are all coaxial, and the assembly is ensured to be in place.
The two-shaft mandrel 1 is provided with a shaft, a transmission gear and an external spline gear which are arranged on the shaft and are close to each other, the primary driven gear 2 is provided with an internal spline gear and an external transmission gear as shown in fig. 4, the internal spline gear and the external transmission gear are sleeved on the shaft and are meshed with the external spline gear of the two-shaft mandrel 1 to form spline connection, one side of the primary driven gear 2 is in contact with the transmission gear of the two-shaft mandrel 1, the other side of the primary driven gear 2 is provided with a groove, the retainer ring 3 is in a circular ring structure as shown in fig. 5 and is fixed on the shaft of the two-shaft mandrel 1 and is embedded into the groove of the primary driven gear 2, the bearing 4 is used for being pressed on the shaft of the two-shaft mandrel 1 as shown in fig. 6, and the inner layer of the bearing 4 is in contact with the retainer ring 3 and is not in contact with the primary driven gear 2.
The one-level driven gear positioning structure composed of the four components can be adapted to sub-parts with different specifications, is suitable for rear axles of different types, achieves universalization, can reduce 17-order noise, and howls on low-speed (25-33km/h) rotating speed road conditions, so that the requirements of a rear axle assembly and the NVH of the whole vehicle are met to the maximum extent, and driving and riding goods are improved. In addition, simple structure, it is convenient to implement, the lightweight, with low costs, promote rear axle assembly NVH performance, promote brand charm.
The utility model has been described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the specific implementation in the above-described manner, and it is within the scope of the utility model to apply the inventive concept and solution to other applications without substantial modification.
Claims (4)
1. The utility model provides an electronic rear axle assembly one-level driven gear location structure which characterized in that: a first-stage driven gear, a check ring and a bearing are sequentially fixed on the two-shaft mandrel, the first-stage driven gear is assembled on a first-stage shaft shoulder of the two-shaft mandrel, the check ring is pressed on a second-stage shaft shoulder of the two-shaft mandrel, and the bearing fixes the check ring shoulder.
2. The primary driven gear positioning structure of the electric rear axle assembly according to claim 1, wherein: the two-shaft mandrel is in spline connection with the primary driven gear.
3. The primary driven gear positioning structure of the electric rear axle assembly according to claim 2, wherein: and the inner ring of the primary driven gear is provided with a groove for embedding the retainer ring.
4. The primary driven gear positioning structure of the electric rear axle assembly according to claim 1, 2 or 3, wherein: the two-shaft mandrel, the primary driven gear, the retainer ring and the bearing are all coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145012.8U CN216683946U (en) | 2021-12-14 | 2021-12-14 | Electronic rear axle assembly one-level driven gear location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145012.8U CN216683946U (en) | 2021-12-14 | 2021-12-14 | Electronic rear axle assembly one-level driven gear location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216683946U true CN216683946U (en) | 2022-06-07 |
Family
ID=81840034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123145012.8U Active CN216683946U (en) | 2021-12-14 | 2021-12-14 | Electronic rear axle assembly one-level driven gear location structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216683946U (en) |
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2021
- 2021-12-14 CN CN202123145012.8U patent/CN216683946U/en active Active
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231106 Address after: 241000 no.226, Huajin South Road, high tech Industrial Development Zone, Wuhu City, Anhui Province Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. |