CN202163272U - Automobile rear axle assembly - Google Patents
Automobile rear axle assembly Download PDFInfo
- Publication number
- CN202163272U CN202163272U CN2011202719815U CN201120271981U CN202163272U CN 202163272 U CN202163272 U CN 202163272U CN 2011202719815 U CN2011202719815 U CN 2011202719815U CN 201120271981 U CN201120271981 U CN 201120271981U CN 202163272 U CN202163272 U CN 202163272U
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- CN
- China
- Prior art keywords
- torsion beam
- rear axle
- axle assembly
- trailing arm
- 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, belongs to the technical scheme of auto rear axle suspensions, and solves the problems that the torsion beam structure of the conventional rear axle has smaller bearing capacity, thereby influencing the operational stability of an entire automobile and failing to meet the requirement on smoothness of the entire automobile. The automobile rear axle assembly comprises a torsion beam, and dragging arms respectively connected with the two ends of the torsion beam, wherein a spring tray is fixedly connected to the joint of each dragging arm and the end part of the torsion beam; the torsion beam is a strip-shaped body; an arc-shaped bulge is arranged in the middle of the strip-shaped body; the strip-shaped body is provided with a U-shaped section; and the spring trays are positioned on the strip-shaped body one side opposite to a opening of the U-shaped section. The automobile rear axle assembly has larger bearing capacity, improves the strength of a rear axle, and can improve the operational stability of the entire automobile, thereby meeting the requirement on smoothness of the entire automobile and improving the stress concentration of the dragging arms.
Description
Technical field
The utility model belongs to automobile axle suspension 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 torsion beam and torsion beam 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 torsion beam have the vehicle rear axle assembly of big load-carrying capacity through the version that changes torsion beam.
The purpose of the utility model can realize through following technical proposal: a kind of vehicle rear axle assembly; Comprise torsion beam and the trailing arm that is connected to the torsion beam two ends; The junction of this trailing arm and torsion beam end is fixed with spring tray; Described torsion beam is the strip shape body that a middle part has an arc convex, and this strip shape body has the cross section of 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 torsion beam and trailing arm; This torsion beam is fixed on the vehicle body; The middle part of torsion beam has the convexity of the arc that makes progress, and both ends are crooked to the direction of middle part arc convex, and trailing arm is connected in the torsion beam two ends; The main bearing vehicle body of torsion beam bearing capacity up and down can improve the load-carrying capacity of torsion beam through the sinuousness that changes the torsion beam above-below direction.
In above-mentioned vehicle rear axle assembly, said torsion beam two ends are crooked to the protruding direction in middle part respectively, and this knee all has lug boss, and this lug boss is curved.This lug boss is that the strip shape body of torsion beam is protruding from inside to outside, can improve the whole torsional strength of torsion beam.
In above-mentioned vehicle rear axle assembly, the U-shaped opening direction of said torsion beam is that level is before car.The purpose that is provided with like this is that spring tray is contacted with the U-shaped bottom of torsion beam fully.
In above-mentioned vehicle rear axle assembly, be shaped on the link slot identical on the end of the described torsion beam 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 torsion beam and trailing arm so that torsion beam 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.
In above-mentioned vehicle rear axle assembly, be provided with brace panel in the described link slot, an end of this brace panel is connected on the link slot inwall, and the other end is connected on the trailing arm.Brace panel surrounds triangular cavity through the mode of welding and above-mentioned link slot, trailing arm welding.
In above-mentioned vehicle rear axle assembly, be provided with torsion bar in the U-shaped opening of said torsion beam, these torsion bar two ends are passed brace panel respectively and are connected on the trailing arm.This torsion bar is that the structural strength of torsion beam is done important replenishing, and improves the overall mechanical strength of torsion beam.
In above-mentioned vehicle rear axle assembly, described trailing arm is the round tube arm.
Compared with prior art, the middle part of the torsion beam of this vehicle rear axle assembly has the strip shape body of an arc convex, and this strip shape body has the cross section of U-shaped; Have bigger load-carrying capacity, improved the intensity of back axle, can improve the operation stabilization performance of car load; Thereby satisfy the ride comfort requirement of car load; In the link slot of torsion beam, be provided with brace panel, an end of this brace panel is connected on the link slot inwall, and the other end is connected on the trailing arm; Increase the strength and stiffness of torsion beam, 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 perspective view of the torsion beam of this vehicle rear axle assembly.
Among the figure, 1, torsion beam; 1a, lug boss; 1b, link slot; 2, trailing arm; 3, spring tray; 4, brace panel; 5, torsion bar.
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 or shown in Figure 2, this vehicle rear axle assembly mainly is made up of torsion beam 1 and trailing arm 2, during actual the manufacturing; This trailing arm 2 is the round tube arm, this torsion beam 1 be fixed on the vehicle body and before car, the car rear is to bending, this torsion beam 1 is formed by the steel plate integrated punching; Torsion beam 1 middle part has the lug boss of an arc; Both ends are crooked to the direction of middle part arc convex, and this torsion beam 1 has the cross section of U-shaped, and the knee at torsion beam 1 two ends all has lug boss 1a; This lug boss 1a is curved to be that the strip shape body of torsion beam 1 is protruding from inside to outside, can improve the whole torsional strength of torsion beam 1; Trailing arm 2 is connected on the curve at torsion beam 1 two ends; Trailing arm 2 is fixed with spring tray 3 with the junction of torsion beam 1 end; For spring tray 3 is contacted with the U-shaped bottom of torsion beam 1 fully, the U-shaped opening direction of torsion beam 1 is that level is before car; This spring tray 3 is positioned at a reverse side of U-shaped opening; Torsion beam 1 with the concrete connection structure of trailing arm 2 is: on the end of torsion beam 1, be shaped on the link slot 1b identical with the surperficial radian of trailing arm 2; Link slot 1b is identical with the radian of trailing arm 2; Trailing arm 2 is connected to link slot 1b and goes up and be fitted in the link slot 1b; Mode with welding is fixed on trailing arm 2 in the link slot 1b again; Link slot 1b 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 1b has increased weld length, can effectively increase the Joint strenght and the bonded assembly fastness of trailing arm 2 and torsion beam 1; In link slot 1b, also be provided with brace panel 4, an end of this brace panel 4 is welded on the link slot 1b inwall, and the other end is welded on the trailing arm 2, and brace panel 4 surrounds triangular cavity through the mode of welding and above-mentioned link slot 1b, trailing arm 2 welding.In order further to improve the overall mechanical strength of torsion beam 1 again, in the U-shaped opening of torsion beam 1, be provided with torsion bar 5, these torsion bar 5 two ends are passed brace panel 4 respectively and are connected on the trailing arm 2.
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 (8)
1. vehicle rear axle assembly; Comprise torsion beam (1) and be connected to the trailing arm (2) at torsion beam (1) two ends; This trailing arm (2) is fixed with spring tray (3) with the junction of torsion beam (1) end, it is characterized in that described torsion beam (1) is the strip shape body that a middle part has an arc convex; This strip shape body has the cross section of 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, said torsion beam (1) two ends are crooked to the protruding direction in middle part respectively, and this knee all has lug boss (1a), and (1a) is curved for this lug boss.
3. vehicle rear axle assembly according to claim 1 is characterized in that, the U-shaped opening direction of said torsion beam (1) is that level is before car.
4. vehicle rear axle assembly according to claim 1 is characterized in that, is shaped on the identical link slot (1b) of surperficial radian with trailing arm (2) on the end of the described torsion beam (1) that is connected with trailing arm (2).
5. vehicle rear axle assembly according to claim 4 is characterized in that, described link slot (1b) is designed to the gabarit opening shape with trailing arm (2) connecting place.
6. vehicle rear axle assembly according to claim 4 is characterized in that, is provided with brace panel (4) in the described link slot (1b), and an end of this brace panel (4) is connected on link slot (1b) inwall, and the other end is connected on the trailing arm (2).
7. vehicle rear axle assembly according to claim 6 is characterized in that, is provided with torsion bar (5) in the U-shaped opening of said torsion beam (1), and this torsion bar (5) two ends are passed brace panel (4) respectively and are connected on the trailing arm (2).
8. vehicle rear axle assembly according to claim 1 is characterized in that, described trailing arm (2) is the round tube arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202719815U CN202163272U (en) | 2011-07-28 | 2011-07-28 | Automobile rear axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202719815U CN202163272U (en) | 2011-07-28 | 2011-07-28 | Automobile rear axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202163272U true CN202163272U (en) | 2012-03-14 |
Family
ID=45799122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202719815U Expired - Fee Related CN202163272U (en) | 2011-07-28 | 2011-07-28 | Automobile rear axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202163272U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448502A (en) * | 2012-06-04 | 2013-12-18 | 上海通用汽车有限公司 | Vehicle torsion bar beam rear suspension |
| CN104129245A (en) * | 2014-07-29 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Semi-bearing structure spring tray for torsion beam |
| CN104260614A (en) * | 2014-09-16 | 2015-01-07 | 奇瑞汽车股份有限公司 | Torsion beam structure |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
| CN105531128A (en) * | 2013-04-16 | 2016-04-27 | 麦格纳国际公司 | Twist beam with joined inner and outer parts |
-
2011
- 2011-07-28 CN CN2011202719815U patent/CN202163272U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448502A (en) * | 2012-06-04 | 2013-12-18 | 上海通用汽车有限公司 | Vehicle torsion bar beam rear suspension |
| CN103448502B (en) * | 2012-06-04 | 2016-08-03 | 上海通用汽车有限公司 | A kind of vehicle torsion bar beam rear suspension |
| CN105531128A (en) * | 2013-04-16 | 2016-04-27 | 麦格纳国际公司 | Twist beam with joined inner and outer parts |
| CN105531128B (en) * | 2013-04-16 | 2018-04-13 | 麦格纳国际公司 | The torsion beam of inner part and exterior part with engagement |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
| CN105216573B (en) * | 2014-06-06 | 2017-11-28 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
| CN104129245A (en) * | 2014-07-29 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Semi-bearing structure spring tray for torsion beam |
| CN104260614A (en) * | 2014-09-16 | 2015-01-07 | 奇瑞汽车股份有限公司 | Torsion beam structure |
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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: 20120314 Termination date: 20190728 |