CN206307117U - Girder assembly and automobile rear lower body structure after a kind of automobile - Google Patents
Girder assembly and automobile rear lower body structure after a kind of automobile Download PDFInfo
- Publication number
- CN206307117U CN206307117U CN201621292581.1U CN201621292581U CN206307117U CN 206307117 U CN206307117 U CN 206307117U CN 201621292581 U CN201621292581 U CN 201621292581U CN 206307117 U CN206307117 U CN 206307117U
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- Prior art keywords
- crossbeam
- automobile
- floor
- girder assembly
- rear crossbeam
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- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 239000000446 fuel Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The utility model provides girder assembly and automobile rear lower body structure after a kind of automobile, belongs to auto parts and components construction applications.Girder assembly includes the rear crossbeam and rear crossbeam inner panel that are fixedly connected after the utility model automobile, the rear crossbeam and rear crossbeam inner panel constitute hollow cavity, the rear crossbeam includes the rear crossbeam rear portion that the rear crossbeam front portion overlapped with vehicle beam three and rear floor overlap, height height more than rear crossbeam front distance ground of the rear crossbeam rear portion apart from ground.The beneficial effects of the utility model are：Lifted on crossbeam rear portion afterwards, space is allowed out and arranges tank filling pipe and exhaust tube cylinder, colliding fuel system safety requirements after intensity, rigidity and passenger car is met maximally utilizes space；Crossbeam inner panel after increasing above rear crossbeam, makes it form a big closed cavity with rear crossbeam, improves whole bearing capability, and bigger active force can be born when being collided.
Description
Technical field
The utility model is related to a kind of auto parts and components structure, more particularly to girder assembly after a kind of automobile, further relates to one
Plant the automobile rear lower body structure comprising girder assembly after the automobile.
Background technology
At present, on the rear portion lower body of many passenger cars, crossbeam is arranged by both sides, arranges some between crossbeam
Crossbeam forms a body frame structure for automotive, and floor is then covered on vehicle frame, and such crossbeam, crossbeam and floor will by welding procedure
Part is welded, and the cavity loop structure of closing is formed in whole rear portion lower body, rear portion physical efficiency of getting off is had good holding
Loading capability.Rear portion lower body meet rear overhang, fuel tank assembly, exhaust pipe assembly, seat install etc. part arrangement while, most
Realize that vehicle body meets the requirement of structural strength, rigidity and relevant laws and regulations eventually.
This structure is widely used on passenger vehicle body, with simple structure, technology maturation, easily exploitation, production technology
It is required that relatively low advantage；The structure readily satisfies the various performances of vehicle by increasing crossbeam cavity and increasing the quantity of crossbeam.
But, this kind of vehicle vehicle body that there is also is of a relatively high, and vehicle space availability ratio is relatively low, and vehicle counterweight is increased to be lacked
Point, additionally, there is a problem in that：
（1）Exhaust tube cylinder is too near with rear crossbeam distance, and too small to floor distance, oil fuel tube arrangement is too low, influences oiling；
（2）Big beam section is small afterwards, is such as directly overlapped with floor, and cavity is small, and bearing capacity is small, and intensity is not enough；
（3）Afterwards there is high stress in crossbeam inner panel with gusset lap-joint, and torsional rigidity is low；
（4）Because spare tyre is placed on vehicle body, and it is full-scale spare tyre, spare tyre hole form depth reaches 208MM, causes to strike out
Type difficulty is big；
（5）It is subject to rear overhang torsion beam, exhaust pipe assembly and oil fuel tube input limitation cavity small at floor crossmember three afterwards, in horizontal stroke
Three rows of seats mount point is arranged on beam three, intensity is not enough；Because the cavity of rear floor crossmember three is small, torsional rigidity is low, it is considered to
When increasing buttress brace on floor, there is high stress in buttress brace after being overlapped with rear floor inner panel；
（6）Original is rolled over rear floor extension with reference to other vehicles and gusset welding, but gusset and ground back plate extension upwards
Closing chamber is formed, causing weldering to rob cannot weld, and be limited by relief valve arrangement, and gusset shirt rim cannot raise upwards；
（7）Extension part in floor is big afterwards, after whole rear portion lower body assembly is welded, in transportation and by outer
It is easily deformed under power effect, when being welded with gusset, matching is poor.
Utility model content
To solve the problems of the prior art, the utility model provides girder assembly after a kind of automobile, also provides a kind of bag
Automobile rear lower body structure containing girder assembly after the automobile.
Girder assembly includes the rear crossbeam and rear crossbeam inner panel that are fixedly connected after the utility model automobile, the rear crossbeam and
Crossbeam inner panel constitutes hollow cavity afterwards, and the rear crossbeam includes the rear crossbeam front portion overlapped with vehicle beam three and rear floor
The rear crossbeam rear portion of overlap joint, height height more than rear crossbeam front distance ground of the rear crossbeam rear portion apart from ground.
The utility model is further improved, and also including rear crossbeam reinforcing plate, the rear crossbeam reinforcing plate is big after being fixed on
Beam is near the side of rear crossbeam inner panel.
The utility model is further improved, and is additionally provided with rear wheel casing inner plate reinforcing plate on the rear girder assembly, it is described after
Wheel cover inner panel reinforcing plate one end is connected with rear wheel casing inner plate, and the other end is fixedly connected with rear crossbeam inner panel.
The utility model is further improved, and the quantity of the rear wheel casing inner plate reinforcing plate is four, the crossbeam after automobile
Assembly sets two per side, and symmetrical on girder assembly after the automobile of the left and right sides.
The utility model is further improved, and the spacing at crossbeam rear portion is more than between rear crossbeam front portion behind vehicle right and left both sides
Away from.
The utility model is further improved, and the rear crossbeam rear portion outside vehicle outer side to moving 30mm.
The utility model is further improved, and the rear crossbeam rear portion is lifted compared with rear crossbeam front portion in Z-direction
17mm。
The utility model additionally provides a kind of automobile rear lower body structure comprising girder assembly after the automobile, including horizontal stroke
The automobile rear floor that beam three is fixedly connected with crossbeam three, also including rear floor entablature, the rear floor entablature is fixed on horizontal stroke
The top of beam three, the two ends of the rear floor entablature, the two ends of crossbeam three, automobile rear floor both sides respectively with vehicle right and left two
The rear crossbeam inner panel overlap joint of side.
The utility model is further improved, and the rear floor entablature is provided with three rows of seats front foot mount point, institute
State three rows of seats front foot mount point and be provided with reinforcing plate.
The utility model is further improved, and the automobile rear floor also includes rear floor extension, is separately positioned on institute
The rear floor rear end left and right sides is stated, described rear floor extension one end is fixedly connected with side-wall outer-plate, the other end is solid with rear crossbeam
Fixed connection, the rear floor extension inner side is provided with rear floor extension reinforcing plate, one end of the floor extension reinforcing plate
Fixation is in the rear between floor extension and rear crossbeam.
Compared with prior art, the beneficial effects of the utility model are：Lifted on crossbeam rear portion afterwards, space is allowed out and is arranged
Tank filling pipe and exhaust tube cylinder, collision fuel system safety requirements makes space most after intensity, rigidity and passenger car is met
Bigization is utilized；Crossbeam inner panel after increasing above rear crossbeam, makes it form a big closed cavity with rear crossbeam, improves vehicle
Bearing capacity, bigger active force can be born when being collided；4 rear wheel casing inner plate reinforcing plates are arranged at rear wheel cover, is allowed
Vehicle frame forms cavity body structure and is connected with gusset, structure is formed stronger power transmission loop, so as to lift torsional rigidity；By rear big
Beam rear portion outwards expands 30mm, outwards expand space allow spare tyre cabin cheat pattern draft can increase, remove away punching stretch
Material is more smooth, so as to improve the punching formation property of part；Floor entablature, two crossbeams after the top of floor crossmember three increases afterwards
Big cavity body structure is formed, so as to improve the bearing capacity of crossbeam, the purpose for improving strength and stiffness is finally reached；Rear floor is prolonged
Stretch the part downward-sloping and downward bending in outside to be overlapped with gusset, meet the demand of welding procedure；Floor extension is strengthened after increase
Plate, is allowed to rear floor extension and rear big beam connection by spot welded together, by three connections of part, lifting
Parts locally intensity；Rear floor extension is avoided to be easily deformed problem under being acted in transportation and by external force, after lifting
Matching when floor extension is welded with gusset, lifts car body mass.
Brief description of the drawings
Fig. 1 is girder assembly structural representation after automobile；
Fig. 2 is Fig. 1 A-A profiles；
Fig. 3 is girder assembly and part gusset combining structure schematic diagram after automobile；
Fig. 4 is Fig. 3 B-B profiles；
Fig. 5 is Fig. 1 top views；
Fig. 6 is car floor assembly structure schematic diagram；
Fig. 7 is floor extension partial structural diagram after automobile left side；
Fig. 8 is Fig. 7 D-D profiles；
Fig. 9 be after car right side floor extension towards bottom surface side structural representation；
Figure 10 is that rear floor assembly is decomposed and force transferring structure schematic diagram.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, girder assembly includes the rear crossbeam 1 and rear crossbeam that are fixedly connected after the utility model automobile
Inner panel 2, the rear crossbeam inner panel 2 is welded on the top of rear crossbeam 1, and both cross sections are all semi-surrounding structure, described rear big
Beam 1 and the hollow cavity of the big closing of the overall composition of rear crossbeam inner panel 2, improve whole bearing capability, can be held when being collided
By bigger active force, and crossbeam 1 sets up rear crossbeam reinforcing plate 3 near the side of rear crossbeam inner panel 2 in the rear, increases overall
The rigidity of girder assembly after automobile.
Crossbeam 1 is arranged on the rear end of preceding crossbeam 13 after this example, including overlapped with vehicle beam three rear crossbeam front portion 102,
The rear crossbeam rear portion 101 overlapped with rear floor 9, height of the rear crossbeam rear portion 101 apart from ground is more than rear crossbeam front portion 102
Apart from the height on ground, 17mm is up raised in the relatively rear crossbeam front portion 102 in rear crossbeam rear portion 101 of this example, and space is allowed out
Arrangement tank filling pipe and exhaust tube cylinder, allow the installation of tank filler tube to raise 17mm upwards, meet oil filling pipe 15
The too low problem of arrangement, while also making the cylinder of blast pipe 16 raise upwards, increases ground clearance, meet intensity, rigidity and
Fuel system safety requirements is collided after passenger car maximally utilizes space.
As shown in Figure 3 and Figure 4, rear wheel casing inner plate reinforcing plate 5, the rear wheel cover are additionally provided with after this example automobile on girder assembly
The one end of inner panel reinforcing plate 5 is connected with rear wheel casing inner plate 4, and the other end is fixedly connected with rear crossbeam inner panel 2.The rear wheel casing inner plate adds
The quantity of strong plate 5 is four, and girder assembly sets two per side after automobile, and on girder assembly after the automobile of the left and right sides
It is symmetrical.4 rear wheel casing inner plate reinforcing plates 5 are arranged at rear wheel cover, is allowed vehicle frame to form cavity body structure with gusset and is connected, make knot
Stronger power transmission loop is configured to, so as to lift torsional rigidity.Effectively raise rear wheel casing inner plate 4, damper reinforcing plate 6 and
The strength and stiffness of the C portions power transmission weakness zone after automobile between girder assembly.
As shown in figure 5, this example by rear crossbeam rear portion 101 relative to rear crossbeam front portion 102 to moving 30mm outside vehicle outer side, from
And make the spacing of the spacing more than rear crossbeam front portion 102 at crossbeam rear portion 101 behind vehicle right and left both sides, make the rear crossbeam of automobile both sides
Spare tyre cabin hole 17 between rear portion 101 can increase pattern draft, reduce material and be washed into type reduction, meet punch forming process,
To reach the large space requirement of in-car spare tyre position, so that punching stretch goes away material more smooth, striking out for part is improved
Type.
As shown in figs. 6 and 10, this example additionally provides a kind of automobile rear lower body comprising girder assembly after the automobile
Structure, including the automobile rear floor 9 that crossbeam 3 14 is fixedly connected with crossbeam three, also including rear floor entablature 7, the rear ground
Plate entablature 7 is fixed on the top of crossbeam three, and forms a cavity body structure with crossbeam three, so that the bearing capacity of crossbeam is improved, most
Raising strength and stiffness are reached eventually, lift the purpose of vehicle torsional rigidity.The two ends of the rear floor entablature 7, crossbeam three
Two ends, the both sides of automobile rear floor 9 are overlapped with the rear crossbeam inner panel 2 of vehicle right and left both sides with welding manner respectively, arrow in Figure 10
Head expression automobile stress transmission schematic diagram, it is seen that Truck Frame Structure stress is transmitted toward vehicle direction, improves the stress of vehicle
And anti-torsion ability, and then improve the strength and stiffness of vehicle.
Floor entablature 7 is provided with three rows of seats front foot mount point 71 after this example, and in the three rows of seats front foot
Mount point 71 is provided with U-shaped reinforcing plate bearing 8.It is arranged at three rows of seats front foot on floor entablature 7, solves seat peace
Decorate assembly space deficiency problem.Increasing by two U-shaped reinforcing plates in rear floor entablature 7 is used to strengthen Seat-fixed point, from
And meet the intensity requirement of Seat-fixed point.
As shown in figs. 7 to 9, this example automobile rear floor 9 also includes rear floor extension 10, is respectively provided with the rear
The rear end left and right sides of plate 9, described rear one end of floor extension 10 is fixedly connected with side-wall outer-plate 12, and the other end is solid with rear crossbeam 1
Fixed connection, the inner side of the rear floor extension 10 is provided with rear floor extension reinforcing plate 11, the floor extension reinforcing plate 11
One end fix in the rear between floor extension 10 and rear crossbeam 1.
This example will the outside of rear floor extension 10 it is downward-sloping, in inclined plane and to increasing bead structures on lower hem
1001, making the intensity of rear floor extension 10 increases, and flanging is molded downwards with gusset overlap joint to meet the demand of welding procedure.
Floor extension reinforcing plate 11 after increase, is allowed to rear floor extension 10 and rear crossbeam 1 by spot welded together, passes through
Three connections of part, form reinforced wall structure between part, local strength greatly promotes.Not only solve the rear end of rear floor 9
The technological problemses welded with side-wall outer-plate 12, hold under also avoiding rear floor extension 10 from being acted in transportation and by external force
Yielding problem, matching when floor extension 10 is welded with side-wall outer-plate 12 after lifting lifts car body mass.
The specific embodiment of the above is better embodiment of the present utility model, and it is new not to limit this practicality with this
The specific implementation scope of type, scope of the present utility model includes being not limited to this specific embodiment, all according to the utility model
The equivalence changes made are in protection domain of the present utility model.
Claims (10)
1. girder assembly after a kind of automobile, it is characterised in that：It is described rear big including the rear crossbeam and rear crossbeam inner panel that are fixedly connected
Beam and rear crossbeam inner panel constitute hollow cavity, the rear crossbeam include the rear crossbeam that is overlapped with vehicle beam three it is anterior and after
The rear crossbeam rear portion of floor overlap joint, height height more than rear crossbeam front distance ground of the rear crossbeam rear portion apart from ground
Degree.
2. girder assembly after automobile according to claim 1, it is characterised in that：Also include rear crossbeam reinforcing plate, it is described after
Crossbeam reinforcing plate is fixed on rear crossbeam near the side of rear crossbeam inner panel.
3. girder assembly after automobile according to claim 2, it is characterised in that：Trailing wheel is additionally provided with the rear girder assembly
Cover inner panel reinforcing plate, described rear wheel casing inner plate reinforcing plate one end is connected with rear wheel casing inner plate, and the other end is fixed with rear crossbeam inner panel
Connection.
4. girder assembly after automobile according to claim 3, it is characterised in that：The quantity of the rear wheel casing inner plate reinforcing plate
It it is four, girder assembly sets two per side after automobile, and symmetrical on girder assembly after the automobile of the left and right sides.
5. girder assembly after the automobile according to claim any one of 1-4, it is characterised in that：Crossbeam behind vehicle right and left both sides
The spacing at the rear portion spacing anterior more than rear crossbeam.
6. girder assembly after automobile according to claim 5, it is characterised in that：The rear crossbeam rear portion to vehicle outer side outside
Move 30mm.
7. girder assembly after the automobile according to claim any one of 1-4, it is characterised in that：The rear crossbeam rear portion with it is rear
Crossbeam front portion is compared, and 17mm has been lifted in Z-direction.
8. a kind of automobile rear lower body structure comprising girder assembly after automobile described in claim any one of 1-7, including horizontal stroke
The automobile rear floor that beam three is fixedly connected with crossbeam three, it is characterised in that：Also include rear floor entablature, on the rear floor
Crossbeam is fixed on the top of crossbeam three, the two ends of the rear floor entablature, the two ends of crossbeam three, the both sides difference of automobile rear floor
Rear crossbeam inner panel with vehicle right and left both sides is overlapped.
9. automobile rear lower body structure according to claim 8, it is characterised in that：The rear floor entablature is provided with
Three rows of seats front foot mount point, the three rows of seats front foot mount point is provided with reinforcing plate.
10. automobile rear lower body structure according to claim 8, it is characterised in that：The automobile rear floor also includes
Floor extension, is respectively provided with the floor rear end left and right sides in the rear, described rear floor extension one end and side-wall outer-plate afterwards
It is fixedly connected, the other end is fixedly connected with rear crossbeam, the rear floor extension inner side is provided with rear floor extension reinforcing plate, institute
The one end for stating floor extension reinforcing plate is fixed in the rear between floor extension and rear crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292581.1U CN206307117U (en) | 2016-11-29 | 2016-11-29 | Girder assembly and automobile rear lower body structure after a kind of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292581.1U CN206307117U (en) | 2016-11-29 | 2016-11-29 | Girder assembly and automobile rear lower body structure after a kind of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206307117U true CN206307117U (en) | 2017-07-07 |
Family
ID=59249524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621292581.1U Expired - Fee Related CN206307117U (en) | 2016-11-29 | 2016-11-29 | Girder assembly and automobile rear lower body structure after a kind of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206307117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494511A (en) * | 2016-11-29 | 2017-03-15 | 上汽通用五菱汽车股份有限公司 | Girder assembly and automobile rear lower body structure after a kind of automobile |
-
2016
- 2016-11-29 CN CN201621292581.1U patent/CN206307117U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494511A (en) * | 2016-11-29 | 2017-03-15 | 上汽通用五菱汽车股份有限公司 | Girder assembly and automobile rear lower body structure after a kind of automobile |
| CN106494511B (en) * | 2016-11-29 | 2023-07-28 | 上汽通用五菱汽车股份有限公司 | Automobile rear girder assembly and automobile rear lower body structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |