CN208931064U - Rear torsion-beam for automobile rear suspension system - Google Patents
Rear torsion-beam for automobile rear suspension system Download PDFInfo
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- CN208931064U CN208931064U CN201821780257.3U CN201821780257U CN208931064U CN 208931064 U CN208931064 U CN 208931064U CN 201821780257 U CN201821780257 U CN 201821780257U CN 208931064 U CN208931064 U CN 208931064U
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- crossbeam
- trailing arm
- automobile
- torsion
- reinforcer
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Abstract
The rear torsion-beam for automobile rear suspension system that torsion bar can be saved the technical problem to be solved by the utility model is to provide one kind is related to the semi-independent suspension technical field of torsion-beam after automobile to realize the lightweight of automobile.Rear torsion-beam for automobile rear suspension system, including left trailing arm, right trailing arm and the crossbeam being welded between left trailing arm and right trailing arm, the section of beam is U-shaped, the crossbeam includes top surface and side, by left and right ends, gradually portion position is recessed thereto for the top surface, the lower edge of the side is respectively equipped with reinforcer in the U-lag of the crossbeam left and right ends by left and right ends gradually portion position fovea superior thereto.The utility model does not have to setting torsion bar, alleviates rear torsion-beam weight, makes automobile more lightweight, improves the handling performance of automobile.
Description
Technical field
The utility model relates to the semi-independent suspension technical fields of torsion-beam after automobile, especially a kind of to be used for rear overhang rack system
The rear torsion-beam of system.
Background technique
Attention with people to automobile fuel consumption, the trend of automotive light weight technology automobile industry development, automotive light weight technology
Automobile fuel consumption can be significantly reduced, reduce the discharge that carbon dioxide goes out.Automotive light weight technology is to meet automobile requirement, safety
Under conditions of requiring with cost control, the loss of weight to automobile mainly is realized by way of optimizing automotive body structure.
For torsion-beam as one of automobile chassis rear suspension system structure, the main structure of rear torsion-beam includes crossbeam, a left side afterwards
Trailing arm and right trailing arm are respectively welded spring base, shock bracket and tire support etc., section of beam V on left trailing arm, right trailing arm
Shape, and weld between left trailing arm and right trailing arm.Left and right trailing arm is bolted by press fitting rubber bushing and car body one
It rises, rear torsion-beam is made to do upper and lower rotary motion, and the bending deformation for passing through crossbeam along the axis line band motor car wheel of two bushing central points
The incorgruous bounce of left and right tire may be implemented, achieve the purpose that improve stability of automobile and comfort.
Though the crossbeam of torsion-beam is using the preferable V-arrangement cross section structure of torsional property after now, but still Shortcomings, after meeting
The torsional property of torsion-beam, now after torsion-beam wall thickness it is still relatively thick, and due to left and right trailing arm be only rely on and section of beam weld
Connection, since trailing arm, crossbeam belong to thin-wall part, the connection effect of trailing arm and crossbeam is weaker, in order to after increasing torsion-beam it is antitorque
Performance, must also be arranged torsion bar between the left and right trailing arm of rear torsion-beam, it is above-mentioned result in now after torsion-beam heavier-weight.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can save torsion bar for automobile rear suspension system
Rear torsion-beam, to realize the lightweight of automobile.
The technical scheme adopted by the utility model to solve the technical problem is as follows: being used for the rear torsion of automobile rear suspension system
Beam, including left trailing arm, right trailing arm and the crossbeam being welded between left trailing arm and right trailing arm, the section of beam is U-shaped, described
Crossbeam includes top surface and side, and by left and right ends, gradually portion position is recessed thereto for the top surface, the lower edge of the side by
Left and right ends gradually portion position fovea superior thereto is respectively equipped with reinforcer, and the crossbeam in the U-lag of the crossbeam left and right ends
The reinforcer of left end and left trailing arm are welded to connect, and the reinforcer and right trailing arm of the crossbeam right end are welded to connect.
Further, the reinforcer section is also U-shaped, and the U in the U-shaped opening direction of the reinforcer and the crossbeam
Shape opening direction is consistently arranged in the U-lag at the both ends of the crossbeam.
Further, the top surface left and right ends are respectively arranged with loss of weight notch.
Further, the side is equipped with lightening hole.
Further, the side lower edge is equipped with flange.
The beneficial effects of the utility model are: the rear torsion-beam for automobile rear suspension system of the utility model, by changing
Become section of beam shape, setting stiffening plate and the top surface and the side view that optimize crossbeam, to improve the antitorque of rear torsion-beam
Intensity does not have to setting torsion bar, turns round after alleviating under conditions of meeting vehicle operation condition, safety and cost control requirement
Beam weight makes automobile more lightweight, improves the handling performance of automobile.
Detailed description of the invention
Fig. 1 is the schematic elevation view of the utility model；
Fig. 2 is the elevational schematic view of the utility model；
Fig. 3 is the crossbeam front view of the utility model；
Fig. 4 is the crossbeam A-A sectional view of the utility model；
Fig. 5 is the crossbeam top view of the utility model；
It is as shown in the figure: 1. crossbeams, 2. left trailing arms, 3. right trailing arms, 4, reinforcer, 11. top surfaces, 12. sides, 13. losss of weight lack
Mouthful, 14. lightening holes, 15, flange.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Upper and lower, left and right in this specification are consistent with Figure of description direction, should not be understood as the special limit to position
It is fixed.
As shown in Figures 1 to 5, the rear torsion-beam for automobile rear suspension system of the utility model, including left trailing arm 2, the right side
Trailing arm 3 and the crossbeam 1 being welded between left trailing arm 2 and right trailing arm 3,1 section of crossbeam are U-shaped, and the crossbeam 1 includes top
Face 11 and side 12, by left and right ends, gradually portion position is recessed thereto for the top surface 11, and the lower edge of the side 12 is by a left side
Right both ends gradually portion position fovea superior thereto is respectively equipped with reinforcer 4, and the cross in the U-lag of 1 left and right ends of crossbeam
The reinforcer 4 of 1 left end of beam and left trailing arm 2 are welded to connect, and the reinforcer 4 and right trailing arm 3 of 1 right end of crossbeam are welded to connect；Institute
It states 11 both ends of top surface and is respectively arranged with loss of weight notch 13.
Section of beam is U-shaped, is better than V-arrangement by the stiffness and strength of force analysis, the crossbeam of same thickness, U-shaped section
The torsional property in section, U-shaped section is stronger.As shown in figure 3, the top surface 11 of crossbeam is by left and right ends gradually thereto under portion position
Recessed, the lower edge of the side 12 of crossbeam is by left and right ends gradually portion position fovea superior thereto, so that crossbeam orthographic projection (Fig. 3) is mute
Bell-shaped, two end section of crossbeam is with respect to middle part section in gradually amplifying, and by force analysis, above structure may make crossbeam both ends
Stress reduction, beam force is uniform, so that the anti-twisting property of crossbeam is accordingly also stronger, simultaneously because section subtracts in the middle part of crossbeam
It is small, crossbeam weight.As shown in Fig. 2, be respectively equipped with reinforcer 4 in 1 left and right ends U-lag of crossbeam, reinforcer 4 is by crossbeam two
The side at end is welded to connect, so that the section of crossbeam end positions be made to form a closed degree of lip-rounding, can enhance crossbeam
Globality promotes transverse beam rigidity and intensity.The reinforcer 4 of 1 left end of crossbeam and left trailing arm 2 are welded to connect, the reinforcement of 1 right end of crossbeam
Part 4 and right trailing arm 3 are welded to connect, and reinforcer increases the bonding strength of crossbeam 1 Yu trailing arm simultaneously.Pass through digital-to-analogue design, CAE points
Analysis, platform experiment verifying and roadway experiment, rear torsion-beam anti-twisting property using the above structure is stronger, can be not provided with torsion bar
In the case of its torsional property remain to meet the requirements, so as to save torsion bar, rear torsion-beam can loss of weight about 10%.
As shown in Fig. 2, 4 section of reinforcer is also U-shaped, and the U-shaped opening side in the U-shaped opening direction of reinforcer 4 and crossbeam 1
Into the U-lag at both ends that crossbeam 1 consistently is arranged.Reinforcer is U-shaped, it is possible to increase the contact surface of reinforcer and crossbeam side
Product, to enhance booster action.The U-shaped opening of reinforcer 4 towards with the U-shaped opening of crossbeam towards identical, convenient for stiffening plate
Welding.
As shown in figure 5,11 left and right ends of top surface of crossbeam are respectively arranged with loss of weight notch 13, loss of weight notch 13 can reduce cross
While beam weight, the fusion length of crossbeam and trailing arm welding can be shortened, when can prevent crossbeam and trailing arm from welding caused by deformation,
Stress collection is medium, thus prevents weld cracking in crossbeam twist process.
In order to further mitigate antitorque beam weight, the side 12 of crossbeam is equipped with lightening hole 14.
Since side lower edge is easy to produce crackle or notch in process, antitorque beam is easy under in stress
The notch or cracks at edge are broken, as shown in figure 5,12 lower edge of side is equipped with flange 15, flange can play reinforcing rib
Effect, keep crossbeam not easy to break.
Claims (5)
1. be used for automobile rear suspension system rear torsion-beam, including left trailing arm (2), right trailing arm (3) and be welded on left trailing arm (2) and
Crossbeam (1) between right trailing arm (3), it is characterised in that: crossbeam (1) section is U-shaped, and the crossbeam (1) includes top surface
(11) and side (12), gradually portion position is recessed thereto by left and right ends for the top surface (11), the side (12) it is following
Cause left and right ends gradually portion position fovea superior thereto is respectively equipped with reinforcer (4) in the U-lag of crossbeam (1) left and right ends,
And the reinforcer (4) of crossbeam (1) left end and left trailing arm (2) are welded to connect, the reinforcer (4) of crossbeam (1) right end with
Right trailing arm (3) is welded to connect.
2. being used for the rear torsion-beam of automobile rear suspension system as described in claim 1, it is characterised in that: the reinforcer (4) is cut
Face is also U-shaped, and institute is consistently arranged in the U-shaped opening direction of the U-shaped opening direction of the reinforcer (4) and the crossbeam (1)
In the U-lag for stating the both ends of crossbeam (1).
3. being used for the rear torsion-beam of automobile rear suspension system as described in claim 1, it is characterised in that: top surface (11) left and right
Both ends are respectively arranged with loss of weight notch (13).
4. being used for the rear torsion-beam of automobile rear suspension system as described in claim 1, it is characterised in that: the side (12) is equipped with
Lightening hole (14).
5. the rear torsion-beam for automobile rear suspension system as described in claim 1,2,3 or 4, it is characterised in that: the side
(12) lower edge is equipped with flange (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780257.3U CN208931064U (en) | 2018-10-31 | 2018-10-31 | Rear torsion-beam for automobile rear suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780257.3U CN208931064U (en) | 2018-10-31 | 2018-10-31 | Rear torsion-beam for automobile rear suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208931064U true CN208931064U (en) | 2019-06-04 |
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ID=66726691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780257.3U Active CN208931064U (en) | 2018-10-31 | 2018-10-31 | Rear torsion-beam for automobile rear suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208931064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352837A (en) * | 2020-03-05 | 2021-09-07 | 株式会社 F.泰克 | Torsion beam type suspension |
-
2018
- 2018-10-31 CN CN201821780257.3U patent/CN208931064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352837A (en) * | 2020-03-05 | 2021-09-07 | 株式会社 F.泰克 | Torsion beam type suspension |
| CN113352837B (en) * | 2020-03-05 | 2024-05-28 | 株式会社F.泰克 | Torsion beam type suspension |
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