CN106627775B - C post passes power loop construction - Google Patents
C post passes power loop construction Download PDFInfo
- Publication number
- CN106627775B CN106627775B CN201611070960.0A CN201611070960A CN106627775B CN 106627775 B CN106627775 B CN 106627775B CN 201611070960 A CN201611070960 A CN 201611070960A CN 106627775 B CN106627775 B CN 106627775B
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- CN
- China
- Prior art keywords
- wheel cover
- girder
- frame
- crossbeam
- rear wheel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
Abstract
The invention relates to the field of automobile frame transfer, in particular to a C-column force transmission loop structure. The utility model provides a C post passes power loop structure, includes C post, back girder, back floor, C post is connected with back girder, back floor and back girder overlap joint, back floor is including first frame crossbeam, second frame crossbeam, seat crossbeam, first frame crossbeam, seat crossbeam, second frame crossbeam arrange the bottom at the back floor from front to back in proper order, first frame crossbeam, seat crossbeam, second frame crossbeam both ends are connected with back girder, back floor still includes the third frame crossbeam, the top at back floor is connected to the third frame crossbeam and is located the top of second frame crossbeam. According to the invention, the cross beam is newly added at the joint of the spare tire cabin and the lower plate of the rear seat, the triangular support plate is added below the rear wheel cover and the rear wheel cover reinforcing plate, and finally the triangular support plate is communicated with the C column cavity to form a complete loop, so that the whole structure obviously improves the rigidity and strength of the whole vehicle.
Description
Technical Field
The invention relates to the field of automobile frame transfer, in particular to a C-column force transmission loop structure.
Background
The lap joint of the rear floor, the rear frame and the side wall near the C column is an important lap joint area of the vehicle body structure, and the structure of the area plays a very important role in the whole vehicle strength and the whole vehicle rigidity. Meanwhile, the structure of the connecting structure is connected with the rear wheel cover and the cavity of the C column, is an important transmission path when the whole vehicle is stressed, and the quality of the connector directly influences the performance of the whole vehicle.
The conventional lap joint structure (as shown in fig. 1 and 2) of the rear floor, the rear frame and the side walls is generally that two sides of the rear floor and left and right rear girders of the frame are lapped, and then welded with the cross beams of the frame, and then welded with the rear wheel cover in the Y direction. Because the material thickness of rear floor (rear seat lower plate and spare tyre cabin) is comparatively thin (T=0.7mm), and the cavity of frame crossbeam and girder does not directly communicate C post cavity, intensity and rigidity of whole structure are all relatively poor, girder and wheel cover overlap joint department, C post all have high stress, and the fracture risk is great.
Disclosure of Invention
The invention provides a C-column force transmission loop structure, which aims to strengthen lap joint of a rear floor, a rear frame and a side wall, optimize a force transmission path and solve the problem of poor rigidity of the rear floor.
The invention provides a C-column force transmission loop structure which comprises a C-column, a rear girder and a rear floor, wherein the C-column is connected with the rear girder, the rear floor is overlapped with the rear girder, the rear floor comprises a first frame cross beam, a second frame cross beam and a seat cross beam, the first frame cross beam, the seat cross beam and the second frame cross beam are sequentially arranged at the bottom of the rear floor from front to back, two ends of the first frame cross beam, the seat cross beam and the second frame cross beam are connected with the rear girder, and the rear floor further comprises a third frame cross beam which is connected at the top of the rear floor and is positioned above the second frame cross beam.
As a further improvement of the invention, the C-column force transmission loop structure further comprises a top cover beam, a triangular support plate and a rear wheel cover provided with side walls, wherein the rear wheel cover is provided with a wheel cover reinforcing plate, and the third frame beam, the rear girder, the triangular support plate, the rear wheel cover, the C-column and the top cover beam are sequentially connected and form a closed stress loop structure.
As a further improvement of the invention, the two ends of the third frame cross beam are connected with the rear girder at the left side and the right side, and the height of the third frame cross beam is equal to the height of the rear girder.
As a further improvement of the present invention, the gusset includes a rear girder connecting portion and a rear wheel cover connecting portion, with a step formed therebetween.
As a further improvement of the invention, the rear girder connecting part and the rear wheel cover connecting part are respectively provided with a flanging, the rear girder connecting part is connected to the rear girder through flanging in a fitting way, and the rear wheel cover connecting part is connected to the rear wheel cover through flanging in a fitting way.
As a further improvement of the invention, the rear wheel cover comprises ribs connected to the inner plate of the rear wheel cover, and the wheel cover reinforcing plate and the triangular support plate are respectively connected to the ribs of the rear wheel cover.
As a further improvement of the invention, the C-pillar force transmission loop structure further comprises a spare tire cabin and a rear seat lower plate, wherein the spare tire cabin is connected with the rear seat lower plate, and the third frame cross beam is arranged at the joint of the spare tire cabin and the rear seat lower plate.
The beneficial effects of the invention are as follows: according to the invention, the cross beam is newly added at the joint of the spare tire cabin and the lower plate of the rear seat, the triangular support plate is added below the rear wheel cover and the rear wheel cover reinforcing plate, and finally the triangular support plate is communicated with the C column cavity to form a complete loop, so that the whole structure obviously improves the rigidity and strength of the whole vehicle.
Drawings
FIG. 1 is a block diagram of a conventional lap joint construction of a rear floor, rear frame and side body of the prior art of the present invention;
FIG. 2 is a cross-sectional view A-A of a conventional lap joint construction of the rear floor, rear frame and side frames of the prior art of the present invention;
FIG. 3 is a block diagram of the force transmission circuit structure of the C column of the present invention;
FIG. 4 is a B-B cross-sectional view of the force-transmitting circuit structure of the C-pillar of the present invention;
FIG. 5 is a C-C cross-sectional view of the force-transmitting circuit structure of the C-pillar of the present invention;
FIG. 6 is a block diagram of a gusset in the force transmission circuit structure of the C-pillar of the present invention;
fig. 7 is a force transmission circuit diagram of the force transmission circuit structure of the C-pillar of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1 to 5, a C-pillar force transmission loop structure comprises a C-pillar 3, a rear girder 2 and a rear floor 1, wherein the C-pillar 3 is connected with the rear girder 2, the rear floor 1 is overlapped with the rear girder 2, the rear floor 1 comprises a first frame beam 11, a second frame beam 12 and a seat beam 13, the first frame beam 11, the seat beam 13 and the second frame beam 12 are sequentially arranged at the bottom of the rear floor from front to back, two ends of the first frame beam 11, the seat beam 13 and the second frame beam 12 are connected with the rear girder 2, the rear floor 1 further comprises a third frame beam 14, and the third frame beam 14 is connected at the top of the rear floor 1 and is positioned above the second frame beam 12.
As shown in fig. 7, the C-pillar force transmission loop structure further includes a roof beam 4, a triangular support plate 5, and a rear wheel cover 6 with side walls, wherein the rear wheel cover 6 is provided with a wheel cover reinforcing plate, and the third frame beam 14, the rear girder 2, the triangular support plate 5, the rear wheel cover 6, the C-pillar 3, and the roof beam 4 are sequentially connected and form a closed stress loop structure.
As shown in fig. 1 to 7, the third frame rail 14 is connected at both ends to the left and right rear cross members 2, and the height of the third frame rail 14 is equal to the height of the rear cross members 2.
The gusset 5 includes a rear girder connecting portion 51 and a rear wheel cover connecting portion 52, and a step is formed between the rear girder connecting portion 51 and the rear wheel cover connecting portion 52.
The rear girder connecting part 51 and the rear wheel cover connecting part 52 are respectively provided with a flanging, the rear girder connecting part 51 is connected to the rear girder 2 through flanging in a laminating way, and the rear wheel cover connecting part 52 is connected to the rear wheel cover 6 through flanging in a laminating way.
According to the CAE analysis result, two triangular supporting plates 5 with smaller sizes are respectively designed on the left and right rear girders and are connected with a rear wheel cover 6 of the side wall.
The rear wheel cover 6 comprises ribs, the ribs are connected to the inner plate of the rear wheel cover 6, and the wheel cover reinforcing plate and the triangular support plate 5 are respectively connected to the ribs of the rear wheel cover. The wheel casing inner plate of the side wall optimizes the rib, strengthen the connection of the triangular support plate 5 and the rear wheel casing reinforcing plate.
The C column force transmission loop structure further comprises a spare tire cabin 7 and a rear seat lower plate 8, the spare tire cabin 7 is connected with the rear seat lower plate 8, and the third frame cross beam 14 is arranged at the joint of the spare tire cabin 7 and the rear seat lower plate 8.
The invention has the overall beneficial effects that:
1) The lap joint structure of the new scheme forms a complete force transmission loop, which is beneficial to force transmission;
2) The lower plate of the rear seat is connected with the spare tire cabin through the cross beam, so that the rigidity of the rear floor assembly is improved;
3) The newly added cross beam and the second frame cross beam form a superposition cavity, the torsion rigidity of the whole vehicle is improved by 1000Nm/deg, and the effective force transmission cross section is increased by 1.1 times;
4) The triangular support plates are connected with the girder and the cavity of the side wall, so that the torsional rigidity of the whole vehicle is improved by 1700 Nm/deg;
5) The structure of the lap joint of the rear floor, the rear girder and the rear wheel cover is reinforced, the stress is reduced by 60Mpa, and the cracking risk is reduced.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (4)
1. The utility model provides a C post biography power loop construction, includes C post (3), back girder (2), back floor (1), C post (3) are connected with back girder (2), back floor (1) overlap joint with back girder (2), back floor (1) are including first frame crossbeam (11), second frame crossbeam (12), seat crossbeam (13), first frame crossbeam (11), seat crossbeam (13), second frame crossbeam (12) are arranged in proper order from front to back in the bottom of back floor, first frame crossbeam (11), seat crossbeam (13), second frame crossbeam (12) both ends are connected with back girder (2), a serial communication port, back floor (1) still include third frame crossbeam (14), third frame crossbeam (14) are connected at the top of back floor (1) and are located the top of second frame crossbeam (12);
the novel bicycle frame comprises a top cover beam (4), a triangular support plate (5) and a rear wheel cover (6) with side walls, wherein the rear wheel cover (6) is provided with a wheel cover reinforcing plate, and a third bicycle frame beam (14), a rear girder (2), the triangular support plate (5), the rear wheel cover (6), a C column (3) and the top cover beam (4) are sequentially connected and form a closed stress loop structure;
the two ends of the third frame cross beam (14) are connected with the rear girder (2) at the left side and the right side, and the height of the third frame cross beam (14) is equal to the height of the rear girder (2);
the triangular support plate (5) comprises a rear girder connecting part (51) and a rear wheel cover connecting part (52), and a step is formed between the rear girder connecting part (51) and the rear wheel cover connecting part (52).
2. The C-pillar force transmission loop structure according to claim 1, wherein the rear girder connecting portion (51) and the rear wheel cover connecting portion (52) are respectively provided with a flange, the rear girder connecting portion (51) is connected to the rear girder (2) through flange lamination, and the rear wheel cover connecting portion (52) is connected to the rear wheel cover (6) through flange lamination.
3. The C-pillar force transmission loop structure according to claim 1, wherein the rear wheel cover (6) comprises ribs, the ribs are connected to an inner plate of the rear wheel cover (6), and the wheel cover reinforcing plate and the triangular support plate (5) are respectively connected to the ribs of the rear wheel cover.
4. The C-pillar force transmission circuit structure according to claim 1, further comprising a spare tire compartment (7) and a rear seat lower plate (8), wherein the spare tire compartment (7) and the rear seat lower plate (8) are connected, and wherein the third frame cross member (14) is disposed at a connection portion of the spare tire compartment (7) and the rear seat lower plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070960.0A CN106627775B (en) | 2016-11-29 | 2016-11-29 | C post passes power loop construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070960.0A CN106627775B (en) | 2016-11-29 | 2016-11-29 | C post passes power loop construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106627775A CN106627775A (en) | 2017-05-10 |
| CN106627775B true CN106627775B (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611070960.0A Active CN106627775B (en) | 2016-11-29 | 2016-11-29 | C post passes power loop construction |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313728A (en) * | 2004-04-28 | 2005-11-10 | Toyota Auto Body Co Ltd | Vehicle body rear structure of automobile |
| CN101643086A (en) * | 2008-08-07 | 2010-02-10 | 本田技研工业株式会社 | Vehicle body structure |
| CN103318265A (en) * | 2013-06-27 | 2013-09-25 | 长城汽车股份有限公司 | Rear force transmission structure of automobile |
| CN105235749A (en) * | 2014-07-09 | 2016-01-13 | 广州汽车集团股份有限公司 | Vehicle back side periphery reinforcement structure, vehicle back portion energy-sucking structure and vehicle |
| CN205273620U (en) * | 2015-12-31 | 2016-06-01 | 广州汽车集团股份有限公司 | Side wall additional strengthening and automobile behind automobile |
| CN206634070U (en) * | 2016-11-29 | 2017-11-14 | 上汽通用五菱汽车股份有限公司 | A kind of C posts power transmission loop structure |
-
2016
- 2016-11-29 CN CN201611070960.0A patent/CN106627775B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313728A (en) * | 2004-04-28 | 2005-11-10 | Toyota Auto Body Co Ltd | Vehicle body rear structure of automobile |
| CN101643086A (en) * | 2008-08-07 | 2010-02-10 | 本田技研工业株式会社 | Vehicle body structure |
| CN103318265A (en) * | 2013-06-27 | 2013-09-25 | 长城汽车股份有限公司 | Rear force transmission structure of automobile |
| CN105235749A (en) * | 2014-07-09 | 2016-01-13 | 广州汽车集团股份有限公司 | Vehicle back side periphery reinforcement structure, vehicle back portion energy-sucking structure and vehicle |
| CN205273620U (en) * | 2015-12-31 | 2016-06-01 | 广州汽车集团股份有限公司 | Side wall additional strengthening and automobile behind automobile |
| CN206634070U (en) * | 2016-11-29 | 2017-11-14 | 上汽通用五菱汽车股份有限公司 | A kind of C posts power transmission loop structure |
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| Publication number | Publication date |
|---|---|
| CN106627775A (en) | 2017-05-10 |
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