CN205365736U - Rear axle crossbeam - Google Patents
Rear axle crossbeam Download PDFInfo
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- CN205365736U CN205365736U CN201520932011.3U CN201520932011U CN205365736U CN 205365736 U CN205365736 U CN 205365736U CN 201520932011 U CN201520932011 U CN 201520932011U CN 205365736 U CN205365736 U CN 205365736U
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- crossbeam
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Abstract
The utility model provides a rear axle crossbeam, rear axle crossbeam includes crossbeam main part, two horizontal beam arm and cross member reinforcement board, two horizontal beam arm fix respectively the both ends of crossbeam main part, the setting of cross member reinforcement board is corresponding horizontal beam arm with the junction of crossbeam main part, on the cross member reinforcement board with the incision of rhombus form is seted up to the part that the crossbeam main part is connected. The utility model discloses the rear axle crossbeam reinforcing plate is compared with prior art, and neotype structure has reduced to 0.50Kg by original 0.69Kg in weight, subtracts heavily approximately 28.1%, has satisfied light -weighted requirement, has guaranteed simultaneously that good strength character is good and the manufacturability is good.
Description
Technical field
This utility model relates to automotive field, particularly to a kind of rear axle crossbeam.
Background technology
In recent years, automobile industry faces unprecedented environmental protection challenge, and vehicle has all been carried out light-weighted design by Ge great motor corporation.Such as, back axle, as important load bearing component, should meet light-weighted requirement when design, the performance requirement of proof strength aspect again.
Fig. 1 is the structural representation of rear axle crossbeam in prior art.Fig. 2 is the structural representation that in Fig. 1, rear axle crossbeam strengthens plate.Fig. 3 is the enlarged drawing of part A in Fig. 1.As shown in Figure 1 to Figure 3, the reinforcement plate 11 of the rear axle crossbeam 10 of certain vehicle is under twisting conditions at present, produces stress concentration phenomenon at the arc transition place of otch 12.In Fig. 3 shown in part B, owing to the shape of existing reinforcement plate 11 end is elongated trapezoidal, narrower with the end portion width of crossbeam lap-joint strengthening plate 11, it is easy to Welding undercut phenomenon occurs.Its stress value is 460.8MPa, higher than the yield value 340MPa strengthening the current material of plate 11.
Therefore, existing crossbeam strengthens plate Shortcomings in strength character, fails to meet the performance requirement of fatigue life.The intensity deficiency problem that existing rear axle crossbeam is urgently strengthened plate by those skilled in the art improves.
Utility model content
The technical problems to be solved in the utility model is to overcome the defect that in prior art, the intensity of rear axle crossbeam reinforcement plate is not enough, it is provided that a kind of rear axle crossbeam.
This utility model solves above-mentioned technical problem by following technical proposals: a kind of rear axle crossbeam, it is characterized in that, described rear axle crossbeam includes main body of cross-beam, two crossbeam arms and crossbeam and strengthens plate, said two crossbeam arm is separately fixed at the two ends of described main body of cross-beam, described crossbeam is strengthened plate and is arranged on the junction of corresponding described crossbeam arm and described main body of cross-beam, and the part that described crossbeam strengthens being connected with described main body of cross-beam on plate offers the otch of diamond shaped.
It is preferred that the length that described crossbeam strengthens the otch on plate is 80-82mm.
It is preferred that the width of the remaining material at the open-ended place of described otch is 11-12mm.
It is preferred that the stress that described crossbeam strengthens plate is 175.8MPa.
Positive progressive effect of the present utility model is in that:
This utility model rear axle crossbeam is by improving the structure strengthening plate, it is effectively improved crossbeam and strengthens the strength character of plate, its stress has been reduced to 175.8MPa by original 460.8MPa, effectively improve the phenomenon that its stress is concentrated, make it be far smaller than crossbeam and strengthen the yield limit stress 340MPa of panel material, meet designing requirement.
Additionally, this utility model rear axle crossbeam strengthens plate compared with prior art, novel structure is reduced to 0.50Kg by original 0.69Kg in weight, loss of weight about 28.1%, meets light-weighted requirement, ensure that good strength character is good and good manufacturability simultaneously.
Accompanying drawing explanation
The above and other feature of this utility model, character and advantage will be become apparent by the description below in conjunction with drawings and Examples, and accompanying drawing labelling identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 is the structural representation of rear axle crossbeam in prior art.
Fig. 2 is the structural representation that in Fig. 1, rear axle crossbeam strengthens plate.
Fig. 3 is the enlarged drawing of part A in Fig. 1.
Fig. 4 is the structural representation of this utility model rear axle crossbeam.
Fig. 5 is the structural representation that this utility model rear axle crossbeam middle cross beam strengthens plate.
Fig. 6 is the enlarged drawing of C portion in Fig. 4.
Detailed description of the invention
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but this utility model can also adopt other to be different from alternate manner described here to be implemented, therefore this utility model is not by the restriction of following public specific embodiment.
Fig. 4 is the structural representation of this utility model rear axle crossbeam.Fig. 5 is the structural representation that this utility model rear axle crossbeam middle cross beam strengthens plate.Fig. 6 is the enlarged drawing of C portion in Fig. 4.
As shown in Figures 4 to 6, a kind of rear axle crossbeam 20 disclosed in an embodiment of the present utility model, it includes main body of cross-beam 21, two crossbeam arms 22 and crossbeam strengthens plate 23.Wherein, two crossbeam arms 22 are separately fixed at the two ends of main body of cross-beam 21, and crossbeam is strengthened plate 23 and is separately positioned on the crossbeam arm 22 of correspondence and the junction of main body of cross-beam 21.The part being connected with main body of cross-beam 21 on crossbeam reinforcement plate 23 offers the otch 24 of diamond shaped.
Further, the length of the otch 24 on the plate 23 of crossbeam reinforcement herein is preferably 80-82mm, and the width of the remaining material at the open-ended place of otch 24 is preferably 11-12mm.
Describing according to said structure, the reinforcement that this utility model rear axle crossbeam the adopts structure that hardens is compared the structure of existing reinforcement plate and is changed greatly dimensionally.The end portion width strengthening plate 23 is widened by it, thus efficiently avoid Welding undercut phenomenon, is simultaneously also beneficial to the control of Pressing Deformation so that punching press and welding procedure are easier to realize (in Fig. 6 shown in D part).
Compared with prior art, the new construction of this utility model rear axle crossbeam is reduced to 0.50Kg by original 0.69Kg in weight, and loss of weight about 28.1% meets light-weighted requirement, also assures that good strength character is good and good manufacturability simultaneously.
The phenomenon that the crossbeam reinforcement plate that this utility model rear axle crossbeam adopts is concentrated for otch inner arc transition position stress has carried out Transform Type design, and the shape of otch is designed like the structure of rhombus according to the optimum results of related software.This Transform Type design is effectively improved crossbeam and strengthens the strength character of plate, stress is reduced to 175.8MPa by original 460.8MPa, effectively improve stress concentration phenomenon, be far smaller than crossbeam and strengthen the yield limit stress 340MPa of panel material, meet design requirement.
Although the foregoing describing detailed description of the invention of the present utility model, it will be appreciated by those of skill in the art that these are merely illustrative of, protection domain of the present utility model is defined by the appended claims.Those skilled in the art is under the premise without departing substantially from principle of the present utility model and essence, it is possible to these embodiments are made various changes or modifications, but these change and amendment each falls within protection domain of the present utility model.
Claims (4)
1. a rear axle crossbeam, it is characterized in that, described rear axle crossbeam includes main body of cross-beam, two crossbeam arms and crossbeam and strengthens plate, said two crossbeam arm is separately fixed at the two ends of described main body of cross-beam, described crossbeam is strengthened plate and is arranged on the junction of corresponding described crossbeam arm and described main body of cross-beam, and the part that described crossbeam strengthens being connected with described main body of cross-beam on plate offers the otch of diamond shaped.
2. rear axle crossbeam as claimed in claim 1, it is characterised in that it is 80-82mm that described crossbeam strengthens the length of the otch on plate.
3. rear axle crossbeam as claimed in claim 2, it is characterised in that the width of the remaining material at the open-ended place of described otch is 11-12mm.
4. rear axle crossbeam as claimed in claim 1, it is characterised in that it is 175.8MPa that described crossbeam strengthens the stress of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932011.3U CN205365736U (en) | 2015-11-20 | 2015-11-20 | Rear axle crossbeam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932011.3U CN205365736U (en) | 2015-11-20 | 2015-11-20 | Rear axle crossbeam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205365736U true CN205365736U (en) | 2016-07-06 |
Family
ID=56260718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520932011.3U Active CN205365736U (en) | 2015-11-20 | 2015-11-20 | Rear axle crossbeam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205365736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001496A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Vehicle-body crossbeam and vehicle body |
-
2015
- 2015-11-20 CN CN201520932011.3U patent/CN205365736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001496A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Vehicle-body crossbeam and vehicle body |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |