CN204278967U - A kind of rear axle crossbeam - Google Patents
A kind of rear axle crossbeam Download PDFInfo
- Publication number
- CN204278967U CN204278967U CN201420692699.8U CN201420692699U CN204278967U CN 204278967 U CN204278967 U CN 204278967U CN 201420692699 U CN201420692699 U CN 201420692699U CN 204278967 U CN204278967 U CN 204278967U
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- Prior art keywords
- rear axle
- section
- axle crossbeam
- crossbeam
- fillet line
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Abstract
The utility model provides a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly, automobile torsion beam suspension hind axle assembly comprises left trailing arm, right trailing arm, left spring disc carrier and right spring holder support, rear axle crossbeam is arranged between left trailing arm and right trailing arm, and left spring disc carrier and right spring holder support are fixed with rear axle beam welding respectively; First cross section of the point midway of rear axle crossbeam comprises the first linkage section of this first paragraph of first paragraph, second segment and connection and this second segment, and wherein the first linkage section is arc; Second cross section at the two ends of rear axle crossbeam comprise the 3rd section, the 4th section with the second linkage section being connected the 3rd section and the 4th section, wherein the second linkage section is straight line; Rear axle crossbeam is progressively transitioned into second cross section at two ends by the first cross section of point midway.The rear axle crossbeam torsional property that the utility model provides is good.
Description
Technical field
The utility model relates to vehicle chassis technology field, particularly a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly.
Background technology
The rear axle crossbeam opening section of automobile torsion beam suspension hind axle assembly mainly contains the V-arrangement and U-shaped that applicable common process manufactures, and wherein U-shaped torsional property is much better than V-arrangement and is widely used.Up to the present, market does not also provide the rear axle crossbeam of the opening section type with higher torsional property.
Chinese utility model patent Authorization Notice No. is CN201086600Y, authorized announcement date is on July 16th, 2008, disclose a kind of automobile torsion beam suspension hind axle assembly, comprise left trailing arm, right trailing arm and connect the crossbeam of trailing arm, straight in the middle part of crossbeam, section of beam increases gradually from middle part to two ends area, and the cross sectional shape of crossbeam is U-shaped cross section.Fig. 5 is the structural representation of the automobile torsion beam suspension hind axle assembly of this utility model patent, comprises left trailing arm 52, right trailing arm 53 and connects the crossbeam 51 of trailing arm.Fig. 6 is the section of beam figure of this utility model patent, and the cross sectional shape of crossbeam is as shown in the figure U-shaped, and crossbeam has top 61 and following 62.The U-shaped cross sectional shape of this kind of rear axle crossbeam is better than V-arrangement cross section, but its torsional property still has much room for improvement.
Utility model content
The technical problems to be solved in the utility model is to provide the good rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly of a kind of torsional property.
For solving the problems of the technologies described above, the utility model provides a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly, described automobile torsion beam suspension hind axle assembly comprises left trailing arm, right trailing arm, left spring disc carrier and right spring holder support, described rear axle crossbeam is arranged between described left trailing arm and described right trailing arm, and described left spring disc carrier and described right spring holder support are fixed with described rear axle beam welding respectively.First cross section of the point midway of described rear axle crossbeam comprises the first linkage section of this first paragraph of first paragraph, second segment and connection and this second segment, and wherein said first linkage section is arc.Second cross section at the two ends of described rear axle crossbeam comprise the 3rd section, the 4th section with the second linkage section being connected the 3rd section and the 4th section, wherein said second linkage section is straight line; Described rear axle crossbeam is progressively transitioned into second cross section at two ends by the first cross section of point midway.
According to an embodiment of the present utility model, the first linkage section is semicircle.
According to an embodiment of the present utility model, the area in described first cross section is less than the area in the second cross section.
According to an embodiment of the present utility model, top progressively lifting from point midway to two ends of rear axle crossbeam, lifting angle [alpha] is 1 ° ~ 7 °.
According to an embodiment of the present utility model, the top progressively lifting from the middle to both ends of rear axle crossbeam, lifting angle [alpha] is 3 ° ~ 5 °.
According to an embodiment of the present utility model, in the opening of rear axle crossbeam, and be respectively equipped with brace panel near the two ends of described rear axle crossbeam, described brace panel welds formation first fillet line with the inside face of described rear axle crossbeam, described left spring disc carrier, right spring holder support welds formation second fillet line with the outside face of described rear axle crossbeam, described second fillet line that described rear axle crossbeam is respectively held and described first fillet line close, described first fillet line and described second fillet line initial to third side to extension from each end end of described rear axle crossbeam, in the direction of extension described first fillet line and described second fillet line discrete gradually, second fillet line with the height a little less than the first fillet line toward third side to extension, at the end near described first fillet line, two fillets line draw in again close gradually, described second fillet line raises up at its tail end and exceedes the height and position of described first fillet line.
According to an embodiment of the present utility model, described second fillet line lower than the part of described first fillet line than the low 2 ~ 5mm of the first fillet line.
Rear axle crossbeam of the present utility model to second cross section at two ends, obtains better moment of torsion torsional property by the first section transitions of point midway.
Accompanying drawing explanation
The above and other feature of the present utility model, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Figure 1A is the structural representation of the utility model one embodiment.
Figure 1B is A-A cutaway view in Fig. 1.
Fig. 1 C is B-B cutaway view in Fig. 1.
Fig. 2 is the structural representation of the utility model one embodiment.
Fig. 3 is the structural representation of the utility model one embodiment.
Fig. 4 is the first fillet line of the utility model one embodiment and the simplified diagram of the second fillet line.
The structural representation of the rear axle section of beam of Fig. 5 prior art.
Fig. 6 is A-A cutaway view in Fig. 5.
Mark in figure: 1, rear axle crossbeam; 2, left trailing arm; 3, right trailing arm; 4, left spring disc carrier; 5, right spring holder support; 6, top; 7, following; 8, brace panel; 9, the first fillet line; 10, the second fillet line; 11, the first cross section; 12, the second cross section; 112, the first line segment; 114, the second line segment; 116, the first connection lead; 122, the 3rd line segment; 124, the 4th line segment; 126, the second connection lead; 51, rear axle crossbeam; 52, left trailing arm; 53, right trailing arm; 61, top; 62, following.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth more details in the following description to fully understand the utility model; but the utility model obviously can be implemented with multiple this alternate manner described that is different from; those skilled in the art can when doing similar popularization, deduction without prejudice to when the utility model intension according to practical situations, therefore should with the content constraints of this specific embodiment protection domain of the present utility model.
Figure 1A is the structural representation of the utility model one embodiment, Figure 1B and Fig. 1 C is A-A and the B-B cutaway view in Fig. 1 respectively.As shown in the figure, automobile torsion beam suspension hind axle assembly comprises rear axle crossbeam 1, left trailing arm 2, right trailing arm 3, left spring disc carrier 4 and right spring holder support 5.Rear axle crossbeam 1 is arranged between left trailing arm 2 and right trailing arm 3, and left spring disc carrier 4 and right spring holder support 5 are welded and fixed with rear axle crossbeam 1.Wherein, left trailing arm 2 is identical with the structure of right trailing arm 3, is arranged symmetrically with at rear axle crossbeam about 1 two ends.Same, left spring disc carrier 4 is identical with the structure of right spring holder support 5, is arranged symmetrically with at rear axle crossbeam about 1 two ends.
First cross section 11 of the point midway of rear axle crossbeam 1 is as Figure 1B signal, and the first linkage section 116, first linkage section 116 comprising first paragraph 112, second segment 114 and be connected this first paragraph 112 and this second segment 114 is arc.
Second cross section 12 such as Fig. 1 C at the two ends of rear axle crossbeam 1 illustrates, comprising the 3rd section 122, the 4th section 124 with the second linkage section 126, second linkage section 126 being connected the 3rd section 122 and the 4th section 124 is straight line.Rear axle crossbeam 1 is progressively transitioned into second cross section 12 at two ends by the first cross section 11 of point midway.
Preferably, the first linkage section is semicircle.
In order to obtain higher torsional property and be convenient to common process manufacture the requirement of rear axle beam design, according to theory of structure principle result of calculation: in uniform cross section upper thread length bending resistance Torsion Section modulus in, round section is greater than square type cross section, and semi-circular cross-section is greater than U-shaped cross section.Therefore, in the design of rear axle crossbeam 1, the position of its mid point adopts the first cross section with arc, particularly adopts with semi-round first cross section 11, to improve torsional property.The two ends of rear axle crossbeam 1 still adopt and are similar to U-shaped cross section of the prior art, but base is the second cross section 12 of straight line, so that the combination of rear axle crossbeam 1 and left trailing arm 2, right trailing arm 3, left spring disc carrier 4 and right spring holder support 5.First cross section 11 of rear axle crossbeam 1 is identical with material with the section steel plate thickness adopted in prior art with material with two kinds of section steel plate thickness of two end sections 12, and first upper thread length in these two kinds of cross sections of cross section 11 and the second cross section 12 and cross-section centroid coordinate identical, shear center coordinate is also identical, so just can meet the requirement detecting road-holding property in dynam very well.Rear axle crossbeam 1 adopts this kind to be progressively transitioned into the structure in second cross section 12 at two ends from the first cross section 11 of center, can obtain higher torsional property.Certainly, the thickness of the material therefor of rear axle crossbeam reduces or increases also to be to play the effect reducing or increase torsional property, but the antitorque efficiency not adopting the means changing cross sectional shape to obtain is high.
Preferably, the area in the first cross section 11 of rear axle crossbeam 1 point midway is less than the area in second cross section 12 at two ends.Rear axle crossbeam 1 adopts area from from the area in the first cross section 11 to the second cross section 12 in the structure increased gradually, makes the entirety of rear axle crossbeam 1 more reasonable by force intensity, improves the reliability in the rigidity of rear axle crossbeam 1 and use procedure.
Under conventional assembling mode, the opening of rear axle crossbeam 1 forward, rear axle crossbeam 1 following 7 near ground, top 6 is near body bottom.As shown in Figure 1A, following 7 of rear axle crossbeam 1 is positioned at level attitude, and position, top 6 is higher than following 7.
Preferably, top 6 progressively lifting from point midway to two ends of rear axle crossbeam 1, lifting angle [alpha] is 1 ° ~ 7 °.Preferably, lifting angle [alpha] is 3 ° ~ 5 °.
Fig. 2 and Fig. 3 is the structural representation of the utility model one embodiment.As shown in the figure, two pieces of brace panels 8 are provided with in the opening of rear axle crossbeam 1, two pieces of brace panels 8 are respectively near the two ends of rear axle crossbeam 1, and the inside face of brace panel 8 and rear axle crossbeam 1 is fixed with welding manner, form the first fillet line 9 at the inside face of brace panel 8 and rear axle crossbeam 1 in position of weld.The outside face at left spring disc carrier 4, right spring holder support 5 and rear axle crossbeam 1 two ends is fixed with welding manner, forms the second fillet line 10 in the outside face position of weld of left spring disc carrier 4, right spring holder support 5 and rear axle crossbeam 1.As shown in Figure 2 on the inside and outside surface at rear axle crossbeam 1 two ends, the first fillet line 9 and second fillet line 10 of each end of rear axle crossbeam 1 are close.
Fig. 4 is the first fillet line of the utility model one embodiment and the simplified diagram of the second fillet line.The first fillet line 9 of respectively holding of rear axle crossbeam and the second fillet line 10 are from each end end of rear axle crossbeam 1 as shown in the figure, i.e. leftmost position (rear axle crossbeam 1 midway location) extension to the right in Fig. 4, in the direction of extension the first fillet line 9 and the second fillet line 10 discrete gradually, second fillet line 10 with the position a little less than the first fillet line 9 toward third side to extension, at the end near the first fillet line 9, two fillets line 9,10 draw in again close gradually, and the second fillet line 10 upwarps the height and position more than the first fillet line 9 at tail end.Preferably, a part for the second fillet line 10 is than the low 2 ~ 5mm of the first fillet line 9.Simultaneously the positional structure of above-mentioned first fillet line 9 and the second fillet line 10 reaches requirement in order to ensure the intensity of the first fillet line 9 and the intensity of the second fillet line 10.
A kind of principal feature being applicable to the rear axle crossbeam of automobile torsion beam suspension hind axle assembly that the utility model provides is that rear axle crossbeam is progressively transitioned into second cross section at two ends by the first cross section with arc, thus obtains higher torsional property.Secondly, rear axle crossbeam adopts area from from the area in the first cross section to second cross section at two ends in the structure increased gradually, further increases the torsional property of rear axle crossbeam.Finally, the first fillet line that the part of the second fillet line that left and right spring holder support and rear axle beam outer surface are formed is formed lower than brace panel and rear axle crossbeam inside face, and two fillets line are close to each other on the inside and outside surface of rear axle crossbeam, further ensure that the rigidity of rear axle crossbeam.
Although the utility model with preferred embodiment openly as above, it is not for limiting the utility model.Any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment.Therefore, every content not departing from technical solutions of the utility model, any amendment done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all fall within protection domain that the utility model claim defines.
Claims (7)
1. one kind is applicable to the rear axle crossbeam of automobile torsion beam suspension hind axle assembly, it is characterized in that, described automobile torsion beam suspension hind axle assembly comprises left trailing arm, right trailing arm, left spring disc carrier and right spring holder support, described rear axle crossbeam is arranged between described left trailing arm and described right trailing arm, and described left spring disc carrier and described right spring holder support are fixed with described rear axle beam welding respectively;
First cross section of the point midway of described rear axle crossbeam comprises the first linkage section of this first paragraph of first paragraph, second segment and connection and this second segment, and wherein said first linkage section is arc; Second cross section at the two ends of described rear axle crossbeam comprise the 3rd section, the 4th section with the second linkage section being connected the 3rd section and the 4th section, wherein said second linkage section is straight line; Described rear axle crossbeam is progressively transitioned into second cross section at two ends by the first cross section of point midway.
2. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 1, is characterized in that, described first linkage section is semicircle.
3. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 1, is characterized in that, the area in described first cross section is less than the area in the second cross section.
4. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 3, is characterized in that, top progressively lifting from point midway to two ends of described rear axle crossbeam, lifting angle [alpha] is 1 ° ~ 7 °.
5. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 4, is characterized in that, described lifting angle [alpha] is 3 ° ~ 5 °.
6. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 1, it is characterized in that, in the opening of described rear axle crossbeam, and be respectively equipped with brace panel near the two ends of described rear axle crossbeam, described brace panel welds formation first fillet line with the inside face of described rear axle crossbeam, described left spring disc carrier, right spring holder support welds formation second fillet line with the outside face of described rear axle crossbeam, described second fillet line that described rear axle crossbeam is respectively held and described first fillet line close, described first fillet line and described second fillet line initial to third side to extension from each end end of described rear axle crossbeam, in the direction of extension described first fillet line and described second fillet line discrete gradually, second fillet line with the height a little less than the first fillet line toward third side to extension, at the end near described first fillet line, two fillets line draw in again close gradually, described second fillet line raises up at its tail end and exceedes the height and position of described first fillet line.
7. a kind of rear axle crossbeam being applicable to automobile torsion beam suspension hind axle assembly according to claim 6, is characterized in that, described second fillet line lower than the part of described first fillet line than the low 2 ~ 5mm of the first fillet line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692699.8U CN204278967U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle crossbeam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692699.8U CN204278967U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle crossbeam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204278967U true CN204278967U (en) | 2015-04-22 |
Family
ID=52862159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420692699.8U Withdrawn - After Issue CN204278967U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle crossbeam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204278967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648069A (en) * | 2014-11-18 | 2015-05-27 | 上海汇众汽车制造有限公司 | Rear axle beam for vehicle torsion beam suspension rear axle assembly |
| CN107672404A (en) * | 2017-09-12 | 2018-02-09 | 奇瑞汽车股份有限公司 | Rear axle crossbeam assembly |
| CN113770569A (en) * | 2021-08-11 | 2021-12-10 | 安徽大昌科技股份有限公司 | Machining process for rear torsion beam of automobile |
-
2014
- 2014-11-18 CN CN201420692699.8U patent/CN204278967U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648069A (en) * | 2014-11-18 | 2015-05-27 | 上海汇众汽车制造有限公司 | Rear axle beam for vehicle torsion beam suspension rear axle assembly |
| CN107672404A (en) * | 2017-09-12 | 2018-02-09 | 奇瑞汽车股份有限公司 | Rear axle crossbeam assembly |
| CN113770569A (en) * | 2021-08-11 | 2021-12-10 | 安徽大昌科技股份有限公司 | Machining process for rear torsion beam of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |