CN101362480A - Bridging arrangement of vehicle beam and left-right longeron - Google Patents
Bridging arrangement of vehicle beam and left-right longeron Download PDFInfo
- Publication number
- CN101362480A CN101362480A CNA2008100703336A CN200810070333A CN101362480A CN 101362480 A CN101362480 A CN 101362480A CN A2008100703336 A CNA2008100703336 A CN A2008100703336A CN 200810070333 A CN200810070333 A CN 200810070333A CN 101362480 A CN101362480 A CN 101362480A
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- lapping
- edge
- right longeron
- automobile
- crossbeam
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Abstract
The invention discloses a lapping structure of the horizontal beam and the left and right longitudinal beams of an automobile, wherein, the cross section of the horizontal beam is U-shaped and both ends of the horizontal beam are welded crosswise with the longitudinal beams through the lapping edge to form an H shape; both ends of the horizontal beam are flared with the width growing larger and larger. The edges of the end form two symmetrical rolling up lapping edges and a straight lapping edge, wherein, two symmetrical rolling up lapping edges lap on the medial surface of the two longitudinal beams, namely, the surface of the direction of Z subject to the coordinate system of the automobile; the straight lapping edge laps on the upper surface of the longitudinal beams, namely, the surface of the direction of X subject to the coordinate system of the automobile. The invention can successfully solve the problem that the processing kerf at the root of the weld edge and the parts lapping edge easily cracks due to the force transferring effect of the H-shaped lapping structure in the automobile structures and the concentrated stress at the root of the lapping parts, thus guaranteeing the requirement of overall intensity and stiffness of the structure.
Description
Technical field
The present invention relates to a kind of automotive body structure, relate in particular to a kind of vehicle beam bridging arrangement.
Background technology
Usually when carrying out the body construction design, as shown in Figure 1 body framing crossbeam 2 and left-right longeron 1 usually appear, 3 cross-lappings become the structure of " H " type, the section of body framing crossbeam 2 becomes " U ", single-piece size basically identical, and adopt the mode of docking with left-right longeron, it is the flange landing edge of three in body framing crossbeam 2 two ends soya-bean oil, (be as the criterion) on the Z direction plane with left-right longeron and overlap with the car system of axes, simultaneously for satisfying technological requirement, before the flange, the skill that must go into operation otch, this structure is very poor to the transmission effect of power, can not well power actvies such as side direction collision be transmitted and decompose, and automobile in motion reversing of vehicle body be easy to cause landing edge flange root stress concentration and process-cut place to occur phenomenons such as cracking to occur.
Summary of the invention
The bridging arrangement that the purpose of this invention is to provide a kind of vehicle beam and left-right longeron, this structure can not only the overlap joint end stress decompose, avoid the phenomenon that occurs ftractureing, and the transmission of power on the total had very big benefit.
The vehicle beam that the present invention proposes and the bridging arrangement of left-right longeron comprise crossbeam and left-right longeron, and described crossbeam section is a U-shaped, and the crossbeam two ends become H shape by landing edge with the left-right longeron weld crosswise; Described crossbeam both ends are increase gradually tubaeform, end edge forms the flange landing edge of two symmetries and edge lap limit always, on the Z direction plane that the medial surface that two flange landing edges are overlapped on left-right longeron promptly is as the criterion with vehicle axis system, on the directions X plane that the upper surface that the straight flange landing edge is overlapped on left-right longeron promptly is as the criterion with vehicle axis system.
In the crossbeam bridging arrangement of the present invention, a landing edge wherein is overlapped on the upper surface of left-right longeron, it and the vertical payload space of part overlap joint have been increased, to the transmission of side collision force and the decomposition effect that has greatly improved, and vehicle body tersional stress centrostigma rationally decomposed, take place thereby avoid this parts flanged-edge root the phenomenon that stress concentration causes cracking to occur.Simultaneously, adopt the version of exit skirt formula, can solve " H " type bridging arrangement in the body construction transmission effect and the part overlap joint Root Stress of power are concentrated welding edge and the part landing edge root process-cut phenomenon easy to crack that causes, guarantee the bulk strength and the rigidity requirement of structure.
Description of drawings
Fig. 1 improves front vehicle body " H " font part bridging arrangement
Fig. 2 is the scheme drawing of the crossbeam that the present invention relates to.
Fig. 3 is the assembling scheme drawing of crossbeam of the present invention and left and right sides crossbeam.
The specific embodiment
As shown in Figure 2, the crossbeam 2 of vehicle beam bridging arrangement is " U " type section part, little in the middle of the crossbeam 2, along with crossbeam extends to two ends gradually, the cross section constantly increases, at both ends forms the exit skirt structure 21 that increases gradually, and specifically promptly the piecemeal line 21 among the figure need be according to peripheral structure and CAE check analysis and finally determine in the position that beginning increases gradually on crossbeam.The end edge of crossbeam 2 is formed with the flange landing edge 23 of two symmetries and edge lap limit 24 always, on the Z direction plane that the medial surface that two flange landing edges 23 are overlapped on left and right longeron 1 and 3 promptly is as the criterion with vehicle axis system, on the directions X plane that the upper surface that straight flange landing edge 24 is overlapped on left and right longeron 1 and 3 promptly is as the criterion with vehicle axis system.
Claims (1)
1, the bridging arrangement of a kind of vehicle beam and left-right longeron comprises crossbeam and left-right longeron, and described crossbeam section is a U-shaped, and the crossbeam two ends become H shape by landing edge with the left-right longeron weld crosswise; It is characterized in that: described crossbeam both ends are increase gradually tubaeform, end edge forms the flange landing edge of two symmetries and edge lap limit always, on the Z direction plane that the medial surface that two flange landing edges are overlapped on left-right longeron promptly is as the criterion with vehicle axis system, on the directions X plane that the upper surface that the straight flange landing edge is overlapped on left-right longeron promptly is as the criterion with vehicle axis system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100703336A CN101362480A (en) | 2008-09-19 | 2008-09-19 | Bridging arrangement of vehicle beam and left-right longeron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100703336A CN101362480A (en) | 2008-09-19 | 2008-09-19 | Bridging arrangement of vehicle beam and left-right longeron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101362480A true CN101362480A (en) | 2009-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100703336A Pending CN101362480A (en) | 2008-09-19 | 2008-09-19 | Bridging arrangement of vehicle beam and left-right longeron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101362480A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530084A (en) * | 2012-01-19 | 2012-07-04 | 重庆长安汽车股份有限公司 | Rear longitudinal and cross beam assembly of automotive body |
| CN104326022A (en) * | 2014-09-29 | 2015-02-04 | 上汽通用五菱汽车股份有限公司 | Extending beam assembly |
| CN107444494A (en) * | 2016-05-30 | 2017-12-08 | 长城汽车股份有限公司 | Top cover support crossbeam and vehicle body and automobile |
| WO2019001489A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Car body structure and vehicle |
| CN109131566A (en) * | 2018-09-11 | 2019-01-04 | 奇瑞汽车股份有限公司 | The welding method of the bridging arrangement and cross of vehicle beam and stringer, stringer |
| CN112277555A (en) * | 2020-11-13 | 2021-01-29 | 东风商用车有限公司 | Automobile rear suspension system and mounting method thereof |
-
2008
- 2008-09-19 CN CNA2008100703336A patent/CN101362480A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530084A (en) * | 2012-01-19 | 2012-07-04 | 重庆长安汽车股份有限公司 | Rear longitudinal and cross beam assembly of automotive body |
| CN102530084B (en) * | 2012-01-19 | 2015-07-01 | 重庆长安汽车股份有限公司 | Rear longitudinal and cross beam assembly of automotive body |
| CN104326022A (en) * | 2014-09-29 | 2015-02-04 | 上汽通用五菱汽车股份有限公司 | Extending beam assembly |
| CN104326022B (en) * | 2014-09-29 | 2017-03-08 | 上汽通用五菱汽车股份有限公司 | A kind of extending beam assembly |
| CN107444494A (en) * | 2016-05-30 | 2017-12-08 | 长城汽车股份有限公司 | Top cover support crossbeam and vehicle body and automobile |
| WO2019001489A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Car body structure and vehicle |
| CN109131566A (en) * | 2018-09-11 | 2019-01-04 | 奇瑞汽车股份有限公司 | The welding method of the bridging arrangement and cross of vehicle beam and stringer, stringer |
| CN112277555A (en) * | 2020-11-13 | 2021-01-29 | 东风商用车有限公司 | Automobile rear suspension system and mounting method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090211 |