CN202413930U - Vehicle body longitudinal beam middle section structure - Google Patents
Vehicle body longitudinal beam middle section structure Download PDFInfo
- Publication number
- CN202413930U CN202413930U CN2012200268100U CN201220026810U CN202413930U CN 202413930 U CN202413930 U CN 202413930U CN 2012200268100 U CN2012200268100 U CN 2012200268100U CN 201220026810 U CN201220026810 U CN 201220026810U CN 202413930 U CN202413930 U CN 202413930U
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- CN
- China
- Prior art keywords
- longitudinal beam
- longeron
- vehicle body
- brace panel
- front cover
- 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 discloses a vehicle body longitudinal beam middle section structure. The vehicle body longitudinal beam middle section structure comprises a longitudinal beam with a U-shaped cross section and a longitudinal beam back-section front cover plate with the U-shaped cross section, wherein the longitudinal beam and the longitudinal beam back-section front cover plate are butt-welded for forming a cavity through a left turned-over edge and a right turned-over edge, a longitudinal beam reinforcing plate is arranged in the cavity, the left side edge of the longitudinal beam reinforcing plate is welded between the left turned-over edge of the longitudinal beam and the left turned-over edge of the longitudinal beam back-section front cover plate, and the right side edge of the longitudinal beam reinforcing plate is welded between the right turned-over edge of the longitudinal beam and the right turned-over edge of the longitudinal beam back-section front cover plate. According to the vehicle body longitudinal beam middle section structure disclosed by the utility model, as the longitudinal beam reinforcing plate is increased in the cavity formed by butt welding of the longitudinal beam and the longitudinal beam back-section front cover plate, the anti-bending performance of the longitudinal beam is effectively upgraded and the problem of insufficient local strength of the longitudinal beam is solved; and furthermore, the vehicle body longitudinal beam middle section structure has the advantages of simple structure, low requirements on design space and easiness in implementation, and is suitable for a variety of problems with high stress concentration caused by stiffness discontinuity.
Description
Technical field
The invention belongs to the automotive body structure field, be specifically related to a kind of automobile longitudinal girder structure.
Background technology
In the technology path and city according to autonomous innovation, the market orientation of short distance logistics shipping, need be on the little car platform of existing maturation, designing car rear portion and suspension again, the minitruck of research and development semi-integral body.Because the load stand under load position of this minitruck and little car be difference to some extent, severe more to the loading that the vehicle longeron produces, require longeron to have more outstanding bending resistance.Through finding that longeron stage casing (being the rear cabin position) has the situation of high-stress concentration in the STR analysis to existing minitruck, can not satisfy strength character requirement when using.
In the existing project organization, like Fig. 1, shown in Figure 2, longeron back segment front shroud 2 and longeron 1 are connected through spot welding, and longeron back shroud 3 and longeron 1 are connected through spot welding.Because the longeron back segment front shroud of this minitruck and the rear end panel of lorry overlap joint are limited by structure design and function, cause local longeron rigidity discontinuous, the problem of stress concentration appears in longeron 1 stage casing flange under the intensity operating mode.
Summary of the invention
The utility model structure provides segment structure in a kind of chassis runner, and it is simple in structure, can improve the longeron bending property, can satisfy the requirement of strength character when using.
Segment structure in the described a kind of chassis runner of the utility model; Comprise the longeron back segment front shroud that longeron that section takes the shape of the letter U and section take the shape of the letter U; Longeron and longeron back segment front shroud form cavity through left and right sides flange butt welding; In cavity, be provided with the longeron brace panel, the left side of this longeron brace panel is welded between longeron left side flange and the longeron back segment front shroud left side flange, and the right edge of longeron brace panel is welded between right flange of longeron and the right flange of longeron back segment front shroud.
The middle part of said longeron brace panel is provided with along the longeron length direction extends and to the reinforced rib of lower recess.Further increase the anti-bending strength of longeron brace panel.
On the reinforced rib of longeron brace panel, offer two welding knock holees, when the longeron brace panel being carried out the electric welding installation, because the existence of welding knock hole can prevent that the longeron brace panel from moving by actv. when welding.
The utility model compared with prior art has the following advantages: owing in the cavity of longeron and longeron back segment front shroud butt welding formation, increased the longeron brace panel, promoted the anti-bending strength of longeron effectively, solved the not enough problem of longeron local strength effectively; Simple in structure, low to the design space requirement, implement to be applicable to multiple because the discontinuous problem that causes high-stress concentration of rigidity easily.
Description of drawings
Fig. 1 is the scheme drawing of segment structure in the existing longeron;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the scheme drawing of segment structure in the longeron of the utility model;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the longeron brace panel structural representation of the utility model;
Wherein, 1-longeron, 2-longeron back segment front shroud, 3-longeron back shroud, 4-longeron brace panel, 5-reinforced rib, 6-knock hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Like segment structure in Fig. 3 and the chassis runner shown in Figure 4; Comprise the longeron back segment front shroud 2 that longeron 1 that section takes the shape of the letter U and section take the shape of the letter U; Longeron 1 forms cavity with the flange butt welding of the left and right sides of longeron back segment front shroud 2, in cavity, is provided with longeron brace panel 4, and the left side of longeron brace panel 4 is welded between longeron 1 left flange and the longeron back segment front shroud 2 left flange; The right edge of longeron brace panel 4 is welded between longeron 1 right flange and the longeron back segment front shroud 2 right flange, is three layers of welding structure.
As shown in Figure 5, longeron brace panel 4 is provided with along longeron 1 length direction and extends and to the reinforced rib 5 of lower recess, on the reinforced rib 5 of longeron brace panel 4, offer two welding knock holees 6.
Claims (3)
1. segment structure in the chassis runner; Comprise the longeron back segment front shroud (2) that longeron (1) that section takes the shape of the letter U and section take the shape of the letter U; Longeron and longeron back segment front shroud form cavity through left and right sides flange butt welding; It is characterized in that: in cavity, be provided with the longeron brace panel; The left side of this longeron brace panel (4) is welded between left flange of longeron (1) and the left flange of longeron back segment front shroud (2), and the right edge of longeron brace panel is welded between right flange of longeron and the right flange of longeron back segment front shroud.
2. segment structure in the chassis runner according to claim 1 is characterized in that: the middle part of said longeron brace panel (4) is provided with along longeron (1) length direction extends and to the reinforced rib (5) of lower recess.
3. segment structure in the chassis runner according to claim 2 is characterized in that: on the reinforced rib (5) of longeron brace panel (4), offer two welding knock holees (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200268100U CN202413930U (en) | 2012-01-20 | 2012-01-20 | Vehicle body longitudinal beam middle section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200268100U CN202413930U (en) | 2012-01-20 | 2012-01-20 | Vehicle body longitudinal beam middle section structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202413930U true CN202413930U (en) | 2012-09-05 |
Family
ID=46738717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200268100U Expired - Fee Related CN202413930U (en) | 2012-01-20 | 2012-01-20 | Vehicle body longitudinal beam middle section structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202413930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847798A (en) * | 2012-11-28 | 2014-06-11 | 上汽通用五菱汽车股份有限公司 | Longitudinal beam reinforcement plate for improving strength of vehicle body damping system |
| CN110341792A (en) * | 2018-04-03 | 2019-10-18 | 上汽通用五菱汽车股份有限公司 | A kind of crossbeam cover plate assembly |
-
2012
- 2012-01-20 CN CN2012200268100U patent/CN202413930U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847798A (en) * | 2012-11-28 | 2014-06-11 | 上汽通用五菱汽车股份有限公司 | Longitudinal beam reinforcement plate for improving strength of vehicle body damping system |
| CN103847798B (en) * | 2012-11-28 | 2016-04-20 | 上汽通用五菱汽车股份有限公司 | A kind of longitudinal beam reinforcing plate improving vehicle body shock mitigation system intensity |
| CN110341792A (en) * | 2018-04-03 | 2019-10-18 | 上汽通用五菱汽车股份有限公司 | A kind of crossbeam cover plate assembly |
| CN110341792B (en) * | 2018-04-03 | 2024-09-17 | 上汽通用五菱汽车股份有限公司 | Girder cover plate assembly |
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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: 20120905 Termination date: 20210120 |