CN101837804A - Sectioned bending energy-absorbing automobile frame arranged on vehicle - Google Patents
Sectioned bending energy-absorbing automobile frame arranged on vehicle Download PDFInfo
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- CN101837804A CN101837804A CN201010001474A CN201010001474A CN101837804A CN 101837804 A CN101837804 A CN 101837804A CN 201010001474 A CN201010001474 A CN 201010001474A CN 201010001474 A CN201010001474 A CN 201010001474A CN 101837804 A CN101837804 A CN 101837804A
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- Prior art keywords
- limiting stopper
- longeron
- limit block
- longitudinal beam
- stage casing
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- 238000005452 bending Methods 0.000 title claims abstract description 30
- 230000011218 segmentation Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000013011 mating Effects 0.000 abstract 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 210000003127 knee Anatomy 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Vibration Dampers (AREA)
Abstract
The invention relates to a sectioned bending energy-absorbing automobile frame arranged on a vehicle; the frame at least comprises a left longitudinal beam, a right longitudinal beam, a front crossbeam and a rear crossbeam; the upper surface of the longitudinal beam is provided with at least one front limit block and one rear limit block; a spacing which is more than zero is arranged between the front limit block and the rear limit block; one end of the front limit block which is close to the rear limit block is provided with height which is vertical to the upper plane of the middle section of the longitudinal beam; and one end of the rear limit block which is close to the front limit block is provided with height which is vertical to the upper plane of the rear section of the longitudinal beam. The sectioned bending energy-absorbing automobile frame arranged on the vehicle has the advantages of simple structure, easy processing and manufacturing and low cost, can effectively improve the capability of the frame to absorb the frontal impact energy of the front end, improve the anti-collision performance, realize industrial production, is applicable to the mating with all types of vehicles, and particularly applicable to the mating with vehicles with non-bearing type vehicle bodies.
Description
Technical field
The invention discloses a kind of automobile chassis frame, be meant a kind of segmentation bending energy-absorbing automobile chassis frame that is installed on automobile especially, belong to field of automobile.
Background technology
Present automobile, the automobile that independent vehicle frame is particularly arranged are when front end generation head-on crash, and the further bending distortion that its vehicle frame curve branch takes place only limits to a little zone, and energy absorption performance is perfect inadequately.
As shown in Figure 1, independence or dependent vehicle frame A are arranged at the bottom of automobile body floor usually, for the automobile that independent vehicle frame is arranged, are commonly referred to as body-chassis frame construction (BODY ONFRAME).Some crossbeams 50 that this class vehicle frame has a left longeron 30 and a right vertical beam 40 usually and is connected both, two longerons are and are symmetrically arranged, in general, each longeron is regarded zigzag from the side as, is connected with the longeron stage casing 24 of longitudinal beam front section 22 by an oblique layout by the longeron back segment 26 that is horizontal arrangement.
When automobile together with vehicle frame during at front end generation head-on crash, because the load of the suffered level of longitudinal beam front section after by forward direction has a vertical distance to the longeron back segment, and make the 24 pairs of longeron back segments in longeron stage casing, 26 on turns 25 produce a moment of flexure, this moment of flexure will make longeron stage casing 24 produce 25 trend of rotating around the knee, load after the suffered level of longitudinal beam front section is by forward direction is less, when not surpassing the yield limit in longeron stage casing 24, elastic deformations will be around the knee 25 take place in longeron stage casing 24, with the load of the suffered level of buffering longitudinal beam front section after by forward direction; Load after the suffered level of longitudinal beam front section is by forward direction is bigger, when surpassing the yield limit in longeron stage casing 24, plastic deformation takes place with on turn 25 in longeron stage casing 24,25 rotate around the knee, and produce a bigger bending with the load of the suffered level of buffering longitudinal beam front section after by forward direction, Fig. 2 has shown this bending, when this plastic deformation is big, rigidity of frame will reduce rapidly, its ability to bear also reduces rapidly, bending will be out of shape down always, cause the whole gross distortion of vehicle body, and damage is serious.Therefore, only have this less zone to absorb collision energy, its energy absorption ability is lower.Though traditional method can be by increasing the wall thickness of making vehicle frame or increasing the integral rigidity that the longeron cross sectional dimensions improves vehicle frame, but this way will cause the increase of productive costs and vehicle frame overall weight, the vehicle operating cost is increased, higher to the requirement of operation, brake system.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and provide a kind of simple in structure, processing and manufacturing is easy, cost is low, can effectively improve the ability that vehicle frame absorbs front end head-on crash energy, improves the segmentation bending energy-absorbing automobile chassis frame that is installed on automobile of its crashworthiness.
The present invention realizes by the following technical solutions: a kind of segmentation bending energy-absorbing automobile chassis frame that is installed on automobile, this vehicle frame has symmetrical left longeron and right vertical beam, and these two longerons all have the longitudinal beam front section of horizontal arrangement usually, longeron back segment and connection longeron stage casing between the two, described longitudinal beam front section and longeron back segment have a vertical distance, the longeron stage casing is with respect to longitudinal beam front section and the oblique layout of longeron back segment, it is characterized in that: be provided with at least two limiting stoppers at described longeron upper surface, first limiting stopper that is called by automotive front end, in the first limiting stopper back and follow thereafter second limiting stopper that is called, have one between described first limiting stopper and described second limiting stopper greater than zero distance, described first limiting stopper and the mutual approach end of described second limiting stopper all have perpendicular to plane on the longeron greater than zero height.
A kind of second kind of technical scheme that is installed on the segmentation bending energy-absorbing automobile chassis frame of automobile of the present invention is to be provided with a limiting stopper at described longeron upper surface; At described limiting stopper end face, be provided with at least one and the vertical open slot of described limiting stopper length direction.
Among the present invention, described limiting stopper is arranged on described longeron stage casing and described longeron back segment junction upper surface.
See accompanying drawing 4, the present invention is owing to adopt said structure, when vehicle frame is subjected to the place ahead head-on crash, the 24 pairs of longeron back segments in longeron stage casing, 26 on turns 25 produce a moment of flexure, when the load after the suffered level of longitudinal beam front section is by forward direction surpasses the yield limit in longeron stage casing 24, the plastic deformation bending takes place with on turn 25 in longeron stage casing 24, and when bending acquired a certain degree, the first limiting stopper 102A contacted with the approach end of the second limiting stopper 102B; If the Joint strenght of the intensity of two limiting stoppers and they and longeron is enough, just bending part 25 stops to continue bending substantially, and make the later zone 27 of the second limiting stopper 102B, or the zone before the first limiting stopper 102A 28 produces new flexural deformation; For second kind of technical scheme, see accompanying drawing 5, when vehicle frame is subjected to the place ahead head-on crash, when bending acquires a certain degree, the notch both sides contact of the groove that the limiting stopper end face is provided with is if the Joint strenght of the intensity of limiting stopper and they and longeron is enough, just bending part 25 stops to continue bending substantially, and make limiting stopper 102 zone 28 in the past, or limiting stopper 102 later zones 27 produce new flexural deformation; Owing to make longeron have more zone to absorb collision energy like this, (Crashworthness) is more excellent for its crashworthiness.
In sum, the present invention is simple in structure, processing and manufacturing is easy, cost is low, can effectively improve the ability that vehicle frame absorbs front end head-on crash energy, improves its crashworthiness, can realize suitability for industrialized production, be suitable for and various types of automobile accessories, be particularly suitable for automobile accessories with body-chassis frame construction.
Description of drawings
Accompanying drawing 1 is the scheme drawing of common vehicle frame before bumping;
Accompanying drawing 2 is common vehicle frame macrobending distortion scheme drawings after bumping;
Accompanying drawing 3 is vehicle frame scheme drawings before bumping shown in the present;
Accompanying drawing 4 is vehicle frame scheme drawings after bumping shown in the present.
Accompanying drawing 5 is structural representations of another embodiment of the present invention.
The specific embodiment
Embodiments of the present invention describe in detail below in conjunction with accompanying drawing:
Referring to accompanying drawing 3, one embodiment of the present invention are: vehicle frame A has symmetrical left longeron and right vertical beam, these two longerons all have the longitudinal beam front section 22 of horizontal arrangement, longeron back segment 26 and connection longeron stage casing 24 between the two, described longitudinal beam front section 22 and longeron back segment 26 have a vertical distance, longeron stage casing 24 is with respect to longitudinal beam front section 22 and longeron back segment 26 oblique layouts, it is characterized in that: in described longeron stage casing 24 with described longeron back segment 26 junctions 25 be provided with the first limiting stopper 102A, the second limiting stopper 102B, the described first limiting stopper 102A is arranged at described longeron stage casing 24 upper surfaces, the described second limiting stopper 102B follows the described first limiting stopper 102A closely and is located at described longeron back segment 26 upper surfaces, there is one between described first limiting stopper 102A and the described second limiting stopper 102B greater than zero distance L, described first limiting stopper 102A and the described second limiting stopper 102B approach end M have the height perpendicular to plane 24A on the longeron stage casing 24, and described second limiting stopper 102B and the described first limiting stopper 102A approach end N have the height perpendicular to plane 26A on the longeron back segment 26.
Referring to accompanying drawing 5, another embodiment of the invention is: in described longeron stage casing 24 with described longeron back segment 26 junctions 25 be provided with a limiting stopper 102, described limiting stopper 102 bottom surface 102D extend to last plane 24A, the 26A of described longeron stage casing 24 and longeron back segment 26 and captive joint with last plane 24A, the 26A of described longeron stage casing 24 and longeron back segment 26; At described limiting stopper 102 end face 102C, be provided with at least one and the vertical open slot 112 of described limiting stopper 102 length directions.
Referring to accompanying drawing 4, when vehicle frame is subjected to the place ahead head-on crash, the 24 pairs of longeron back segments in longeron stage casing, 26 on turns 25 produce a moment of flexure, when the load after the suffered level of longitudinal beam front section is by forward direction surpasses the yield limit in longeron stage casing 24, the plastic deformation bending takes place with on turn 25 in longeron stage casing 24, when bending acquired a certain degree, the first limiting stopper 102A contacted with the approach end of second piece 102B; If the Joint strenght of the intensity of two limiting stoppers and they and longeron is enough, just bending part 25 stops to continue bending substantially, and make the later zone 27 of the second limiting stopper 102B, or the zone before the first limiting stopper 102A 28 produces new flexural deformation;
Referring to accompanying drawing 5, when vehicle frame is subjected to the place ahead head-on crash, when bending acquires a certain degree, the notch both sides contact of the open slot that limiting stopper 102 end faces are provided with, if the Joint strenght of the intensity of limiting stopper and they and longeron is enough, bending part 25 just stops to continue bending substantially, and makes the zone 28 before the limiting stopper 102, or limiting stopper 102 later zones 27 produce new flexural deformation; Owing to make longeron have more zone to absorb collision energy like this, (Crashworthness) is more excellent for its crashworthiness.
Claims (4)
1. segmentation bending energy-absorbing automobile chassis frame that is installed on automobile, this vehicle frame has symmetrical left longeron and right vertical beam, it is characterized in that: be provided with at least two limiting stoppers at described longeron upper surface, first limiting stopper that is called by automotive front end, in the first limiting stopper back and follow thereafter second limiting stopper that is called, have one between described first limiting stopper and described second limiting stopper greater than zero distance, described first limiting stopper and the mutual approach end of described second limiting stopper all have perpendicular to plane on the longeron greater than zero height.
2. segmentation bending energy-absorbing automobile chassis frame that is installed on automobile, this vehicle frame has symmetrical left longeron and right vertical beam, it is characterized in that: be provided with a limiting stopper at described longeron upper surface; At described limiting stopper end face, be provided with at least one and the vertical open slot of described limiting stopper length direction.
3. a kind of segmentation bending energy-absorbing automobile chassis frame that is installed on automobile according to claim 1, it is characterized in that: described first limiting stopper is arranged on the longeron stage casing upper surface of described longeron stage casing and described longeron back segment junction, and described the 2nd limiting stopper follows first limiting stopper closely and is arranged on described longeron back segment upper surface.
4. a kind of segmentation bending energy-absorbing automobile chassis frame that is installed on automobile according to claim 2 is characterized in that: described limiting stopper is arranged on described longeron stage casing and described longeron back segment junction upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001474XA CN101837804B (en) | 2010-01-05 | 2010-01-05 | Sectioned bending energy-absorbing automobile frame arranged on vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001474XA CN101837804B (en) | 2010-01-05 | 2010-01-05 | Sectioned bending energy-absorbing automobile frame arranged on vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837804A true CN101837804A (en) | 2010-09-22 |
| CN101837804B CN101837804B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010001474XA Expired - Fee Related CN101837804B (en) | 2010-01-05 | 2010-01-05 | Sectioned bending energy-absorbing automobile frame arranged on vehicle |
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| CN (1) | CN101837804B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234727A (en) * | 2013-03-23 | 2013-08-07 | 奇瑞汽车股份有限公司 | Stringer structure for frontal offset crash test and crash test method |
| CN103796905A (en) * | 2011-10-25 | 2014-05-14 | 丰田自动车株式会社 | Framework member |
| CN104776967A (en) * | 2015-04-02 | 2015-07-15 | 奇瑞汽车股份有限公司 | Impact bending resistance test device for car front longitudinal beam assembly and test method |
| US10703415B2 (en) | 2018-06-08 | 2020-07-07 | Ford Global Technologies, Llc | Vehicle frame assembly |
| CN109689483B (en) * | 2016-08-27 | 2021-08-13 | 戴姆勒股份公司 | Body for a passenger vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021004208A1 (en) * | 2021-08-17 | 2022-08-18 | Mercedes-Benz Group AG | Rear floor structure for a passenger car and passenger car |
-
2010
- 2010-01-05 CN CN201010001474XA patent/CN101837804B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796905A (en) * | 2011-10-25 | 2014-05-14 | 丰田自动车株式会社 | Framework member |
| CN103234727A (en) * | 2013-03-23 | 2013-08-07 | 奇瑞汽车股份有限公司 | Stringer structure for frontal offset crash test and crash test method |
| CN103234727B (en) * | 2013-03-23 | 2015-07-15 | 奇瑞汽车股份有限公司 | Stringer structure for frontal offset crash test and crash test method |
| CN104776967A (en) * | 2015-04-02 | 2015-07-15 | 奇瑞汽车股份有限公司 | Impact bending resistance test device for car front longitudinal beam assembly and test method |
| CN109689483B (en) * | 2016-08-27 | 2021-08-13 | 戴姆勒股份公司 | Body for a passenger vehicle |
| US11242089B2 (en) | 2016-08-27 | 2022-02-08 | Daimler Ag | Chassis for a passenger car |
| US10703415B2 (en) | 2018-06-08 | 2020-07-07 | Ford Global Technologies, Llc | Vehicle frame assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837804B (en) | 2012-01-04 |
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Owner name: HUNAN LIEBAO MOTORS CO., LTD. Free format text: FORMER OWNER: HUNAN CHANGFENG MOTOR RESEARCH + DESIGN CO., LTD. Effective date: 20130322 |
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Effective date of registration: 20130322 Address after: 425001 No. 68, North cheetah Road, Lengshuitan District, Hunan, Yongzhou Patentee after: Hunan Liebao Automobile Co.,Ltd. Address before: 410014 Hunan province Changsha Yuhua District, Guyana Institute Road No. 1 Patentee before: Hunan Changfeng Automobile Research and Development Co.,Ltd. |
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| C56 | Change in the name or address of the patentee |
Owner name: HU'NAN CHANGFENG LIEBAO AUTOMOBILE CO., LTD. Free format text: FORMER NAME: HUNAN LIEBAO MOTORS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 425001 No. 68, North cheetah Road, Lengshuitan District, Hunan, Yongzhou Patentee after: HUNAN LIEBAO AUTOMOBILE CO.,LTD. Address before: 425001 No. 68, North cheetah Road, Lengshuitan District, Hunan, Yongzhou Patentee before: Hunan Liebao Automobile Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |