CN201800778U - Novel crumpling energy absorbing type subframe - Google Patents
Novel crumpling energy absorbing type subframe Download PDFInfo
- Publication number
- CN201800778U CN201800778U CN2010205433124U CN201020543312U CN201800778U CN 201800778 U CN201800778 U CN 201800778U CN 2010205433124 U CN2010205433124 U CN 2010205433124U CN 201020543312 U CN201020543312 U CN 201020543312U CN 201800778 U CN201800778 U CN 201800778U
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- CN
- China
- Prior art keywords
- welding assembly
- novel
- type subframe
- beam welding
- subframe
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
- B62D21/155—Sub-frames or underguards
Abstract
The utility model relates to a novel crumpling energy absorbing type subframe, which consists of a left longitudinal beam and right longitudinal beam welding assembly, a front cross beam welding assembly and a rear cross beam welding assembly, and is characterized in that the front part and the rear part of the left longitudinal beam and right longitudinal beam welding assembly are respectively provided with two mounting holes which are connected with a vehicle body via bolts, and the front cross beam welding assembly and the rear cross beam welding assembly are respectively welded on the longitudinal beams; and the four beams constitute a truss structure. Compared with the traditional tubular beam structure, the subframe has better stability and strength, can crumple automatically in collision, and greatly absorbs collision impact energy.
Description
Technical field
The utility model relates to a kind of novel crumple energy-absorption type subframe, is applicable to the suspension system field on vehicle chassis such as minicar, MPV, SUV.
Background technology
We know that traditional self-supporting body that does not have subframe, its suspension are directly to link to each other with the vehicle body steel plate.Therefore the fore suspension and rear suspension assembly all is a loose mail, and non-integral.After subframe was born, fore suspension and rear suspension was assembled on the subframe, constitutes an integral body; Rigidity and vibration isolation ability have been guaranteed.Simultaneously, this integral body can be used as a module and is installed on the vehicle body.Nowadays, subframe has become the indispensable part of chassis of the minitype automobile suspension system development and Design, but it is finished under the prerequisite of basic function, brings into play bigger potential, improve safety and road-holding property that car load travels, this is individual very good problem to study.
We analyze and have contrasted a large amount of vehicles, sum up the minicar of finding in the market, its subframe adopts the pipe girder construction mostly---and tubular crossbeam and angle bar frame by two ends simmering and bending are welded, bolt together between support and the vehicle body, crossbeam transmits the road surface to vehicle body and acts on the power and the moment of tire, and is supporting deflector and Panhard rod.The subframe of this structure, its advantage is: simple in structure, the processing and manufacturing cost is low; Shortcoming is: when automobile bumps, and substantially without any energy-absorbing design and at the safety method of chaufeur.
Summary of the invention
The purpose of this utility model is to provide a kind of novel crumple energy-absorption type subframe, and it can be when vehicle frontal collision, reduce since the impact of Steering gear and steering handwheel to the injury of chaufeur; Its advantage guarantees good suspension K﹠amp for providing splendid each to flexibility; The C characteristic; Road vibration be can completely cut off, thereby good ride comfort and traveling comfort brought; Suspended rack assembly is combined into integral body, has improved the commonality and the interchangeability of suspension, reduced research and development and manufacturing cost; The assembly parts are easy for installation, reduced technology difficulty and cost.
The technical solution of the utility model is achieved in that novel crumple energy-absorption type subframe, is made up of left and right longeron welding assembly, front cross rail welding assembly, after cross member welding assembly; It is characterized in that: before and after the left and right longeron welding assembly two mounting holes are arranged respectively, with vehicle body with bolted connection, front cross rail welding assembly and after cross member welding assembly are welded on the longeron respectively; Four beams have constituted a truss structure each other.
Back ends A-B section and E-G section inclination perk in face of the stringer sides of described left and right longeron welding assembly, middle B-E section level is recessed, is inverted trapezoidal structure.
The top face of the longeron of described left and right longeron welding assembly is furnished with the circular minor groove of a platoon leader.
Good effect of the present utility model is to compare with traditional pipe girder construction, and stability and intensity are better, can automatic buckling when bumping, greatly absorb the collision impact energy.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is side projection figure of the present utility model.
Fig. 3 is a local structure enlarged drawing of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described: as Figure 1-3, novel crumple energy-absorption type subframe is made up of left and right longeron welding assembly 1, front cross rail welding assembly 2, after cross member welding assembly 3; It is characterized in that: respectively there are two mounting holes left and right longeron welding assembly 1 front and back, with vehicle body with bolted connection, front cross rail welding assembly 2 and after cross member welding assembly 3 are welded on respectively on the longeron of left and right longeron welding assembly 1; Four beams have constituted a truss structure each other,
As shown in Figure 2, back ends A-B section and E-G section inclination perk in face of the stringer sides of described left and right longeron welding assembly 1, middle B-E section level is recessed, is inverted trapezoidal structure.
As shown in Figure 3, the top face of the longeron of described left and right longeron welding assembly 1 is furnished with the circular minor groove of a platoon leader.Purpose is repeatedly energy-absorbing and distortion guiding.
As shown in Figure 2, when head-on crash took place, obstacle applied directed force F to body forward structure, because the application force in when collision is by transmitting behind the forward direction, to underdamping, subframe rear portion G holds with respect to the front-end A place so by strong, its displacement remains unchanged substantially, it can be considered as fixed end.Two stages of the deformation process of subframe: 1. at first be that subframe integral body moves level to the G end, the trend that is crushed is arranged;
2. then because above-mentioned " inverted trapezoidal structure " design, make the axial stiffness of dogleg section A-B and E-G than C-D section little (and also there are the axial stiffness of Control arm lining and sleeve pipe in C, D place), so the trend that A-B section and E-G section are bent is greater than the trend that subframe integral body is crushed, α, β angle increase, " inverted trapezoidal structure " becomes " rectangular configuration ", α, β near or greater than 90 °.For the conquassation direction that guarantees subframe and energy-absorbing repeatedly, we also design the circular minor groove of a platoon leader as shown in Figure 3 on longeron.Work as A-B, when the E-G section bends, the also inevitable together clickwise of the steering gear bracket of Han Jie crossbeam assembly and installation and deflector thereon, steering shaft that links to each other with deflector and steering handwheel will move to the direction away from him with respect to chaufeur so, thereby chaufeur are not caused the actv. injury when guaranteeing collision.By the car load Collision test, result's proof is in full accord with designing requirement, and the indentation amount of steering handwheel has reached 70mm.
Claims (3)
1. novel crumple energy-absorption type subframe is made up of left and right longeron welding assembly, front cross rail welding assembly, after cross member welding assembly; It is characterized in that: before and after the left and right longeron welding assembly two mounting holes are arranged respectively, with vehicle body with bolted connection, front cross rail welding assembly and after cross member welding assembly are welded on the longeron respectively; Four beams have constituted a truss structure each other.
2. novel crumple energy-absorption type subframe according to claim 1 is characterized in that stringer sides back ends A-B section and E-G section inclination perk in front of described left and right longeron welding assembly, and middle B-E section level is recessed, is inverted trapezoidal structure.
3. novel crumple energy-absorption type subframe according to claim 1 is characterized in that novel crumple energy-absorption type subframe, and the top face of the longeron of described left and right longeron welding assembly is furnished with the circular minor groove of a platoon leader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205433124U CN201800778U (en) | 2010-09-27 | 2010-09-27 | Novel crumpling energy absorbing type subframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205433124U CN201800778U (en) | 2010-09-27 | 2010-09-27 | Novel crumpling energy absorbing type subframe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201800778U true CN201800778U (en) | 2011-04-20 |
Family
ID=43870296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205433124U Expired - Fee Related CN201800778U (en) | 2010-09-27 | 2010-09-27 | Novel crumpling energy absorbing type subframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201800778U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI473732B (en) * | 2011-12-30 | 2015-02-21 | Metal Ind Res & Dev Ct | The safety structure of the vehicle side impact energy |
| CN110588790A (en) * | 2019-08-30 | 2019-12-20 | 泰牛汽车技术(苏州)有限公司 | Front auxiliary frame with energy absorption function and automobile |
| CN113771948A (en) * | 2021-08-25 | 2021-12-10 | 重庆长安汽车股份有限公司 | Front structure of lower vehicle body |
-
2010
- 2010-09-27 CN CN2010205433124U patent/CN201800778U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI473732B (en) * | 2011-12-30 | 2015-02-21 | Metal Ind Res & Dev Ct | The safety structure of the vehicle side impact energy |
| CN110588790A (en) * | 2019-08-30 | 2019-12-20 | 泰牛汽车技术(苏州)有限公司 | Front auxiliary frame with energy absorption function and automobile |
| CN113771948A (en) * | 2021-08-25 | 2021-12-10 | 重庆长安汽车股份有限公司 | Front structure of lower vehicle body |
| CN113771948B (en) * | 2021-08-25 | 2023-12-12 | 深蓝汽车科技有限公司 | Lower vehicle body front structure |
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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: 20110420 Termination date: 20190927 |