CN202481141U - Automobile rear axle assembly - Google Patents
Automobile rear axle assembly Download PDFInfo
- Publication number
- CN202481141U CN202481141U CN2011205399221U CN201120539922U CN202481141U CN 202481141 U CN202481141 U CN 202481141U CN 2011205399221 U CN2011205399221 U CN 2011205399221U CN 201120539922 U CN201120539922 U CN 201120539922U CN 202481141 U CN202481141 U CN 202481141U
- Authority
- CN
- China
- Prior art keywords
- girder
- trailing arm
- rear axle
- axle assembly
- vehicle rear
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an automobile rear axle assembly, belonging to the field of automobile technology. Through the utility model, the problems of the existing rear axle that a main beam structure has relatively low bearing capacity to influence the operation stability of the whole vehicle and thus the requirement on smoothness of the whole vehicle is not met are solved. The automobile rear axle assembly comprises a main beam and dragging arms connected at the two ends of the main beam respectively; a spring tray is fixedly connected with the joint between each dragging arm and the end part of the main beam; the main beam is of a double-layer structure hydraulically formed on the side wall of a steel pipe; the cross section of the main beam has a U shape; and the spring tray is located on the side opposite to the U-shaped opening. In the utility model, the main beam is of a double-layer structure hydraulically formed on the side wall of the steel pipe and has relatively great bearing capacity, so that the strength of the rear axle is enhanced, and the operation stability of the whole vehicle can be improved so as to meet the requirement on smoothness of the whole vehicle.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of vehicle rear axle assembly.
Background technology
Along with advancing and rapid development of automobile industry of society, automobile has got into huge numbers of families as a kind of important vehicle.The total structure of automobile axle generally is made up of back axle assembly, retarder, diff, semiaxis and wheel hub; Back axle assembly is as the main load member of vehicle complete vehicle; Be one of indispensable assembly on the automobile, vehicle rear axle assembly generally comprises girder and girder bonded assembly trailing arm, like Chinese patent number is: " 201110021651.5 " described a kind of automobile axle; Its concrete structure is: this automobile axle mainly is made up of girder and curb girder; This curb girder is symmetricly set on the left and right sides of girder, and the two ends of girder link to each other with the waist of curb girder respectively, and this girder adopts its cross-sectional plane of plate forming V-shaped; The left and right sides of girder is symmetrically arranged with brace panel; One end of this brace panel links to each other with the curb girder medial surface, and the other end links to each other with the V-arrangement peristome of girder, and brace panel and girder, curb girder welding surround the triangle cavity.In above-mentioned structure, this girder is straight shape, and the cross section is V-shaped; Its section form and opening direction have bigger influence to back axle torsional stiffness and intensity; Above-mentioned main beam structure load-carrying capacity is less, influences the road-holding property of car load, has satisfied not the requirement of car load ride comfort.
Summary of the invention
The purpose of the utility model is to existing deficiency, provides a kind of and makes girder have the vehicle rear axle assembly of big load-carrying capacity through the version that changes girder.
The purpose of the utility model can realize through following technical proposal: a kind of vehicle rear axle assembly; Comprise girder and the trailing arm that is connected to the girder two ends; The junction of this trailing arm and girder end is fixed with spring tray; Described girder is the double-decker of steel pipe shaped by fluid pressure on sidewall, and the cross-sectional plane of this girder is a U-shaped, and above-mentioned spring tray is positioned at a reverse side of U-shaped opening.
This vehicle rear axle assembly mainly is made up of girder and trailing arm; This girder is fixed on the vehicle body, and trailing arm is fixed on the two ends of girder, and girder is the double-decker of steel pipe shaped by fluid pressure on sidewall; Improve stock utilization; Realize light-weight design, the main bearing vehicle body of girder bearing capacity up and down can improve bending resistance, torsional property and the load-carrying capacity of girder through the molding structure that changes girder.
In above-mentioned vehicle rear axle assembly, described trailing arm encloses into tubular structure for bending with steel plate.The length direction of the tube wall upper edge tubular body of trailing arm has a weld seam, has reduced the influence of weld defect, can improve the mechanical strength of trailing arm, when satisfying trailing arm structure and mechanical strength, also improves stock utilization, realizes light-weight design.
In above-mentioned vehicle rear axle assembly, an end of said trailing arm forms the drg mounting flange.This drg mounting flange and trailing arm are structure as a whole.
In above-mentioned vehicle rear axle assembly, said drg mounting flange is positioned at the end of trailing arm near spring tray.This drg mounting flange is used to the drg that is connected.
In above-mentioned vehicle rear axle assembly, the junction of said trailing arm and girder end also is provided with brace panel.The purpose that is provided with like this improves the Joint strenght of trailing arm and girder end.
In above-mentioned vehicle rear axle assembly, be shaped on the link slot identical on the end of the described girder that is connected with trailing arm with the surperficial radian of trailing arm.Link slot is identical with the radian of trailing arm, can effectively increase the Joint strenght and the bonded assembly fastness of girder and trailing arm so that girder and trailing arm are more fitted.
In above-mentioned vehicle rear axle assembly, described link slot and trailing arm connecting place are designed to the gabarit opening shape.The purpose that is provided with like this is to increase link slot and trailing arm weld length.
Compared with prior art, the girder of this vehicle rear axle assembly is that steel pipe double-decker of shaped by fluid pressure on sidewall has bigger load-carrying capacity, has improved the intensity of back axle, can improve the operation stabilization performance of car load, thereby satisfy the ride comfort requirement of car load; The junction of trailing arm and girder end also is provided with brace panel, has increased the strength and stiffness of girder, has improved the stress concentration of trailing arm.
Description of drawings
Fig. 1 is the perspective view of this vehicle rear axle assembly.
Fig. 2 is the sectional structure scheme drawing of this vehicle rear axle assembly girder.
Fig. 3 is the perspective view of this vehicle rear axle assembly trailing arm.
Among the figure, 1, girder; 1a, link slot; 2, trailing arm; 3, spring tray; 4, drg mounting flange; 5, brace panel; 6, weld seam.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Like Fig. 1, Fig. 2 or shown in Figure 3, this vehicle rear axle assembly mainly is made up of girder 1 and trailing arm 2, and during actual the manufacturing, this trailing arm 2 is with the curved tubular structure that encloses into of steel plate; In order to have reduced the influence of weld defect; Improve the mechanical strength of trailing arm 2; The length direction of the tube wall upper edge tubular body of trailing arm 2 has a weld seam 6, and an end of trailing arm 2 forms drg mounting flange 4, and this drg mounting flange 4 is structure as a whole with trailing arm 2; This girder 1 is fixed on the vehicle body, and during actual the manufacturing, girder 1 is to become double-decker with steel pipe hydraulic pressure on sidewall, and the cross-sectional plane of girder 1 is a U-shaped, and trailing arm 2 is connected in the two ends of girder 1; In order to improve the Joint strenght of trailing arm 2 and girder 1 end, trailing arm 2 also is provided with brace panel 5 with the junction of girder 1 end; Trailing arm 2 is fixed with spring tray 3 with the junction of girder 1 end, and above-mentioned drg mounting flange 4 is positioned at the end of trailing arm 2 near spring tray 3; For spring tray 3 is contacted with the U-shaped bottom of girder 1 fully, the U-shaped opening direction of girder 1 is that level is before car; This spring tray 3 is positioned at a reverse side of U-shaped opening; Girder 1 with the concrete connection structure of trailing arm 2 is: on the end of girder 1, be shaped on the link slot 1a identical with the surperficial radian of trailing arm 2; Link slot 1a is identical with the radian of trailing arm 2; Trailing arm 2 is connected to link slot 1a and goes up and be fitted in the link slot 1a; Mode with welding is fixed on trailing arm 2 in the link slot 1a again; Link slot 1a and trailing arm 2 connecting places are designed to the gabarit opening shape, and trailing arm 2 is welded to connect with it through link slot 1a has increased weld length, can effectively increase the Joint strenght and the bonded assembly fastness of trailing arm 2 and girder 1.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (7)
1. vehicle rear axle assembly; Comprise girder (1) and be connected to the trailing arm (2) at girder (1) two ends; This trailing arm (2) is fixed with spring tray (3) with the junction of girder (1) end, it is characterized in that described girder (1) is the double-decker of steel pipe shaped by fluid pressure on sidewall; The cross-sectional plane of this girder (1) is a U-shaped, and above-mentioned spring tray (3) is positioned at a reverse side of U-shaped opening.
2. vehicle rear axle assembly according to claim 1 is characterized in that, described trailing arm (2) encloses into tubular structure for bending with steel plate.
3. vehicle rear axle assembly according to claim 2 is characterized in that, an end of said trailing arm (2) forms drg mounting flange (4).
4. vehicle rear axle assembly according to claim 3 is characterized in that, said drg mounting flange (4) is positioned at the end of trailing arm (2) near spring tray (3).
5. vehicle rear axle assembly according to claim 1 is characterized in that, said trailing arm (2) also is provided with brace panel (5) with the junction of girder (1) end.
6. vehicle rear axle assembly according to claim 1 is characterized in that, is shaped on the identical link slot (1a) of surperficial radian with trailing arm (2) on the end of the described girder (1) that is connected with trailing arm (2).
7. vehicle rear axle assembly according to claim 6 is characterized in that, described link slot (1a) is designed to the gabarit opening shape with trailing arm (2) connecting place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205399221U CN202481141U (en) | 2011-12-21 | 2011-12-21 | Automobile rear axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205399221U CN202481141U (en) | 2011-12-21 | 2011-12-21 | Automobile rear axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202481141U true CN202481141U (en) | 2012-10-10 |
Family
ID=46955589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205399221U Expired - Fee Related CN202481141U (en) | 2011-12-21 | 2011-12-21 | Automobile rear axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202481141U (en) |
-
2011
- 2011-12-21 CN CN2011205399221U patent/CN202481141U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20181221 |