CN213441924U - Lightweight electric automobile rear axle assembly - Google Patents
Lightweight electric automobile rear axle assembly Download PDFInfo
- Publication number
- CN213441924U CN213441924U CN202022218276.0U CN202022218276U CN213441924U CN 213441924 U CN213441924 U CN 213441924U CN 202022218276 U CN202022218276 U CN 202022218276U CN 213441924 U CN213441924 U CN 213441924U
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- China
- Prior art keywords
- rear axle
- connecting piece
- axle
- pipe
- automobile rear
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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
Abstract
The utility model provides a lightweight electric automobile rear axle assembly belongs to car technical field. The automobile rear axle solves the problems of high processing cost and short service life of the existing automobile rear axle. This lightweight electric automobile rear axle assembly, including the fashioned connecting piece of aluminium pressure forming's bridge pipe and bridge casing, cast iron and neck bush, the connecting piece is installed on the bridge pipe, and the neck bush sets up between connecting piece and the bridge pipe, and neck bush and axle housing body pass through die-casting integrated into one piece, and the outer tip of neck bush stretches out the bridge outside of the pipe and welds mutually with the connecting piece, and the bridge outside of tubes end links firmly the bearing frame.
Description
Technical Field
The utility model belongs to the technical field of the car, in particular to lightweight electric automobile rear axle assembly.
Background
The automobile rear axle is the rear axle of the automobile. If the front axle is not a drive axle, the rear axle is the drive axle, the front axle plays a role in driving, reducing and differentiating, if the front axle is four-wheel driven, a transfer case is generally arranged in front of the rear axle, the traditional automobile rear axle is formed by welding and connecting cast iron connecting pieces and main cast axle tubes, the rear axle housing formed by welding is too heavy, so that the oil consumption of an automobile is high, particularly for a light electric automobile, the power is consumed, the heat conductivity of cast iron is not good, and abnormal combustion accidents are easily caused in a high-temperature environment. In order to solve the problems, the rear axle housing of the light automobile in China is formed by connecting a half-axle sleeve assembly cast by cast iron and a reducer shell assembly cast by aluminum. Not only solved the problem of processing cost, compare the axle housing of full aluminium structure moreover, its corrosion resistance and intensity all increase to some extent. However, because the melting points of aluminum and cast iron are too different, the aluminum and cast iron can not be welded together by adopting the conventional welding process, and the aluminum and cast iron can be welded only by adopting high-difficulty and high-cost welding technologies such as electron beam welding, laser welding, argon arc welding and the like, thereby increasing the production difficulty.
Disclosure of Invention
The utility model aims at providing a simple structure's lightweight electric automobile rear axle assembly to the above-mentioned problem that exists among the prior art.
The purpose of the utility model can be realized by the following technical proposal: the rear axle assembly of the light electric automobile is characterized by comprising an aluminum-pressed axle pipe, an axle shell, a cast iron-formed connecting piece and an inner bushing, wherein the connecting piece is arranged on the axle pipe, the inner bushing is arranged between the connecting piece and the axle pipe, the inner bushing and the axle shell are integrally formed through die casting, the outer end part of the inner bushing extends out of the axle pipe and is welded with the connecting piece, and a bearing seat is fixedly connected with the outer end part of the axle pipe.
In the light-weight electric automobile rear axle assembly, the outer peripheral wall of the inner bushing is provided with 3 to 5 concave rings which are inwards concave.
In the light-weight electric automobile rear axle assembly, the outer end part of the axle pipe is positioned in the bearing seat and is internally provided with the oil seal and the retainer.
Compared with the prior art, the lightweight electric automobile rear axle assembly is provided with the connecting piece formed by cast iron and the axle pipe formed by aluminum pressing, so that the electric automobile rear axle assembly is more lightweight and has stronger balance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a bridge pipe; 2. a bridge housing; 3. a connecting member; 4. an inner liner; 6. a cage.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, this light-weight electric automobile rear axle assembly, its characterized in that, including aluminium pressure formed bridge pipe 1 and axle housing 2, fashioned connecting piece 3 of cast iron and neck bush 4, connecting piece 3 install on bridge pipe 1, neck bush 4 sets up between connecting piece 3 and bridge pipe 1, and neck bush 4 and axle housing 2 through die-casting integrated into one piece, the outer tip of neck bush 4 stretches out outside bridge pipe 1 and welds with connecting piece 3 mutually, bridge pipe 1 outer tip has linked firmly the bearing frame, has 3 to 5 inwards sunken concave rings on the periphery wall of neck bush 4, the outer tip of bridge pipe 1 is located and is provided with oil blanket and holder 6 in the bearing frame 5.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (3)
1. The rear axle assembly of the light electric automobile is characterized by comprising an aluminum-pressed axle pipe, an axle shell, a cast iron-formed connecting piece and an inner bushing, wherein the connecting piece is arranged on the axle pipe, the inner bushing is arranged between the connecting piece and the axle pipe, the inner bushing and the axle shell are integrally formed through die casting, the outer end part of the inner bushing extends out of the axle pipe and is welded with the connecting piece, and a bearing seat is fixedly connected with the outer end part of the axle pipe.
2. The rear axle assembly of a light-weight electric vehicle as claimed in claim 1, wherein the outer peripheral wall of the inner bushing has 3 to 5 inwardly recessed rings.
3. The rear axle assembly of the light-weight electric automobile as claimed in claim 1, wherein the outer end of the axle tube is located in the bearing seat and is provided with an oil seal and a retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218276.0U CN213441924U (en) | 2020-09-30 | 2020-09-30 | Lightweight electric automobile rear axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218276.0U CN213441924U (en) | 2020-09-30 | 2020-09-30 | Lightweight electric automobile rear axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213441924U true CN213441924U (en) | 2021-06-15 |
Family
ID=76287993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022218276.0U Active CN213441924U (en) | 2020-09-30 | 2020-09-30 | Lightweight electric automobile rear axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213441924U (en) |
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2020
- 2020-09-30 CN CN202022218276.0U patent/CN213441924U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |