CN203974947U - Vehicle subframe front cross rail and vehicle subframe - Google Patents
Vehicle subframe front cross rail and vehicle subframe Download PDFInfo
- Publication number
- CN203974947U CN203974947U CN201420215415.6U CN201420215415U CN203974947U CN 203974947 U CN203974947 U CN 203974947U CN 201420215415 U CN201420215415 U CN 201420215415U CN 203974947 U CN203974947 U CN 203974947U
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- angle
- front cross
- upper plate
- cross rail
- connecting panel
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- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a kind of frame member, relate in particular to a kind of vehicle subframe front cross rail, it comprise above upper plate, below lower plate and be connected in upper plate and lower plate between connecting panel, angle between described upper plate and connecting panel, and angle between lower plate and connecting panel is obtuse angle.Meanwhile, the utility model relates to a kind of vehicle subframe with this vehicle subframe front cross rail.Adopt the technical solution of the utility model, can realize the guiding to impact force, make vehicle subframe front cross rail in to impact force bootup process, have definite deformation tendency, improved the safety performance of car load collision, it is simple in structure.
Description
Technical field
The utility model relates to a kind of frame member, relates in particular to a kind of vehicle subframe front cross rail; Meanwhile, the utility model relates to a kind of vehicle subframe with this vehicle subframe front cross rail.
Background technology
Subframe is a kind of carrier that suspension is installed, it mainly completes the transfer function from power between the power on road surface and vehicle body, existing auxiliary frame structure, adopt by two subframe longitudinal beams more, be fixed on the class four limit structures that subframe front cross rail between subframe longitudinal beam and rear cross beam of subframe surround, along with the continuous progress of technology, the design level of subframe has directly had influence on safety, intensity and NVH characteristic.At secure context, in the time that vehicle generation central collision or biasing are touched, subframe longitudinal beam and subframe front cross rail are the parts of main distortion, and both distortion directly have influence on accekeration and the front wall intrusion amount of driving compartment, if subframe longitudinal beam and subframe front cross rail design strength are too low, in collision process, can cause being out of shape excessive, do not have the effect of energy-absorbing, be unfavorable for improving the safety performance of vehicle, if subframe longitudinal beam and subframe front cross rail design strength surplus, can cause driving compartment acceleration/accel excessive, cause chaufeur and occupant's injury values to raise, be unfavorable for equally improving the safety performance of vehicle, aspect intensity, Vehicle Driving Cycle is under different road conditions, excitation from road surface to tire, can be passed on subframe by swing arm, during as car brakeing, wheel is to swing arm application force backward, application force is directly passed on subframe by attachment point before and after swing arm by swing arm, and then make subframe produce small distortion, in this distortion, the deformation tendency of subframe longitudinal beam is to expand outwardly, and the deformation tendency of subframe front cross rail is bending to the inside, after the distortion of subframe front cross rail, the front side stress that is squeezed, rear side is subject to drawing stress, because the intensity of parts is more responsive for drawing stress, so the structure of subframe front cross rail rear side directly has influence on the intensity of subframe entirety, aspect NVH characteristic, subframe design is mainly the excitation impact bringing while considering the component workings such as road surface or driving engine, so that the natural frequency of subframe is avoided the oscillation frequency of the parts such as driving engine to prevent resonance, therefore need to improve the rigidity of subframe front cross rail, therefore, in the time that subframe front cross rail is designed, need to consider as above factor.
In existing subframe front cross beam structure, roughly be divided into three kinds, the n shape structure of the end opening that the first is made up of the connecting panel between upper plate, lower plate and connection and upper plate and lower plate, this structure is in the time of vehicle generation central collision, because upper plate, lower plate are vertical setting with connecting panel, entirety deformation tendency under the effect of impact force is uncertain; It two is closing structures that the inside that formed by the welding of upper plate and lower plate has cavity, and this structure makes front cross rail width be greater than height, and in the time of vehicle generation central collision, likely bending up or down, has reduced energy-absorbing effect, and more with material; It three is shaped by fluid pressure pipe girder constructions, its complex process, and cost is higher, and vehicle is in the time of central collision, and the deformation direction of subframe front cross rail is uncertain, simultaneously, pipe beam section is long-pending less, and the main method that improve its rigidity and mode is to increase wall thickness, and it is unfavorable for car load lightweight.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of subframe front cross rail that can guarantee deformation tendency in the time of collision happens.
For achieving the above object, vehicle subframe front cross rail of the present utility model, comprise above upper plate, below lower plate and be connected in upper plate and lower plate between connecting panel, the angle between described upper plate and connecting panel, and angle between lower plate and connecting panel is obtuse angle.
As the restriction to aforesaid way, the angle between described upper plate and connecting panel equals the angle between lower plate and connecting panel.
As to improvement of the present utility model, on upper plate, be fixed with the upper overturning turning up, in lower plate, be fixed with the lower flange turning up.
As the restriction to aforesaid way, the angle between described upper overturning and upper plate, and angle between lower flange and lower plate is obtuse angle.
As the improvement to aforesaid way, the non-isogonism setting of angle between the angle between described upper overturning and upper plate and lower flange and lower plate.
In addition, the utility model provides a kind of vehicle subframe simultaneously, comprise two spaced longerons, be connected in the after cross member between longeron, between two longerons, be fixed with after cross member along bodywork length direction spacing arrange, vehicle subframe front cross rail as above, described connecting panel in bodywork length direction away from after cross member.
Adopt the technical solution of the utility model, can realize the guiding to impact force, make vehicle subframe front cross rail in to impact force bootup process, have definite deformation tendency, improved the safety performance of car load collision, it is simple in structure.
Brief description of the drawings
Below in conjunction with the drawings and the specific embodiments, the utility model is done further to describe in detail:
Fig. 1 is the integral structure schematic diagram of the utility model embodiment mono-;
Fig. 2 is that the A-A of Fig. 1 is to schematic diagram;
Fig. 3 is the integral structure schematic diagram of the utility model embodiment bis-.
In figure: 1, vehicle subframe front cross rail; 101, upper plate; 102, lower plate; 103, connecting panel; 104, upper overturning; 105, lower flange; 2, longeron; 3, after cross member; 4, mounting bracket; 5, rear mounting bush.
Detailed description of the invention
Embodiment mono-
The present embodiment relates to a kind of vehicle subframe front cross rail 1, by Fig. 1 in conjunction with shown in Fig. 2, it comprises the upper plate 101 that is positioned at top, be positioned at the lower plate 102 of below, and be connected in the connecting panel 103 between upper plate 101 and lower plate 102, non-perpendicular setting between upper plate 101 and connecting panel 103, and angle a1 between upper plate 101 and connecting panel 103 is obtuse angle; Equally, the angle a2 between lower plate 102 and connecting panel 103 is also obtuse angle, and a1 equals a2.Like this, form upper plate 101 and lower plate 102, extended out setting with respect to connecting panel 103.By the setting of this structure, in the time of collision happens, can pass through upper plate 101 and the guiding of lower plate 102 to impact force, so that vehicle subframe front cross rail 1 entirety has definite deformation tendency.
For the further overall rigidity that improves vehicle subframe front cross rail 1 is to avoid as much as possible the generation of resonance effect, excessive and the ability to crash energy absorption of reduction of the opening of vehicle subframe front cross rail 1 while simultaneously avoiding vehicle collision, on upper plate 101, be fixed with the upper overturning 104 upwards turning up, in the present embodiment, the angle b1 between upper overturning 104 and upper plate 101 is obtuse angle; In lower plate 102, be fixed with the lower flange 105 turning up downwards, the angle b2 between lower flange 105 and lower plate 102 is similarly obtuse angle.By setting up upper overturning and lower flange, actv. has increased the total quality of vehicle subframe front cross rail 1, simultaneously, in the time bumping, because upper plate and lower plate extend out motion because of what impact force caused, make the angle between upper plate and upper overturning, and angle between lower plate and lower flange progressively becomes large, and then limited upper plate and lower plate and extend out the unlimited inhibition and generation of motion, avoid the excessive and reduction to impact force absorption power that causes of upper plate and lower plate opening.
In order better to guarantee the assimilation effect to impact force, in the present embodiment, angle b1 is arranged to be greater than angle b2.When this is arranged so that collision occurs, the variation of angle b1 and angle b2 is inconsistent, thereby the center of gravity while making vehicle subframe front cross rail 1 Collision-free power constantly changes, by this change, can change the direction of impact force, its assimilation effect to impact force is more optimized.
In addition, in order further to improve overall intensity, in the present embodiment, upper plate 101, lower plate 102, connecting panel 103, upper overturning 104 and the one-body molded manufacture of lower flange 105.
Embodiment bis-
The present embodiment relates to a kind of vehicle subframe, as shown in Figure 3, it comprises two spaced longerons 2, on longeron 2, be respectively equipped with vehicle subframe is arranged on to the mounting bracket 4 on car body, between two longerons 2, be fixedly connected with after cross member 3, mounting bush 5 after being fixed with on after cross member 3, as above structure all can adopt existing body frame structure for automotive.In addition, between two longerons 2, be fixed with after cross member 3 along vehicle subframe front cross rail 1 setting of bodywork length direction spacing, that there is embodiment mono-structure, opening surface in vehicle subframe front cross rail 1 is to after cross member 3, make like this connecting panel 103 in bodywork length direction away from after cross member 3.
In the time that collision occurs, the parts such as the bumper/spoiler of vehicle front, collision prevention girders, radiator all move backward, have caused vehicle subframe front cross rail 1 to start flexural deformation, and then have realized the resisting, absorb of impact force, and its Combination property is better.
Claims (2)
1. a vehicle subframe front cross rail, comprise above upper plate, below lower plate and be connected in upper plate and lower plate between connecting panel, it is characterized in that: the angle between described upper plate and connecting panel, and angle between lower plate and connecting panel is obtuse angle; Angle between described upper plate and connecting panel equals the angle between lower plate and connecting panel; On upper plate, be fixed with the upper overturning turning up, in lower plate, be fixed with the lower flange turning up; Angle between described upper overturning and upper plate, and angle between lower flange and lower plate is obtuse angle; The non-isogonism setting of angle between angle between described upper overturning and upper plate and lower flange and lower plate.
2. a vehicle subframe, comprise two spaced longerons, be connected in the after cross member between longeron, it is characterized in that: between two longerons, be fixed with after cross member along bodywork length direction spacing arrange, vehicle subframe front cross rail as claimed in claim 1, described connecting panel in bodywork length direction away from after cross member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215415.6U CN203974947U (en) | 2014-04-30 | 2014-04-30 | Vehicle subframe front cross rail and vehicle subframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215415.6U CN203974947U (en) | 2014-04-30 | 2014-04-30 | Vehicle subframe front cross rail and vehicle subframe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203974947U true CN203974947U (en) | 2014-12-03 |
Family
ID=51972420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420215415.6U Expired - Lifetime CN203974947U (en) | 2014-04-30 | 2014-04-30 | Vehicle subframe front cross rail and vehicle subframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203974947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747717A (en) * | 2017-11-02 | 2019-05-14 | 丰田自动车株式会社 | Front part structure of vehicle |
-
2014
- 2014-04-30 CN CN201420215415.6U patent/CN203974947U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747717A (en) * | 2017-11-02 | 2019-05-14 | 丰田自动车株式会社 | Front part structure of vehicle |
| CN109747717B (en) * | 2017-11-02 | 2021-04-06 | 丰田自动车株式会社 | Vehicle front structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |