CN104554444A - Vehicle rear sub-frame - Google Patents
Vehicle rear sub-frame Download PDFInfo
- Publication number
- CN104554444A CN104554444A CN201410727885.5A CN201410727885A CN104554444A CN 104554444 A CN104554444 A CN 104554444A CN 201410727885 A CN201410727885 A CN 201410727885A CN 104554444 A CN104554444 A CN 104554444A
- Authority
- CN
- China
- Prior art keywords
- tubule
- mounting bracket
- pipe
- tube
- swing arm
- 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.)
- Granted
Links
- 210000005239 tubule Anatomy 0.000 claims description 100
- 238000009434 installation Methods 0.000 claims description 26
- 239000000725 suspension Substances 0.000 claims description 16
- 239000003381 stabilizer Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 8
- 230000007704 transition Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
Classifications
-
- 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
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention particularly relates to a vehicle rear sub-frame and belongs to the technical field of vehicle manufacturing. The vehicle rear sub-frame comprises a front horizontal pipe, a rear horizontal pipe, a left longitudinal pipe and a right longitudinal pipe which form a #-shaped structure, wherein the left longitudinal pipe and the right longitudinal pipe are respectively connected with the front horizontal pipe and the rear horizontal pipe; an inner connecting plate and an outer connecting pipe are respectively arranged at the places where the two ends of the front horizontal pipe are connected with the left longitudinal pipe and the right longitudinal pipe; an upper control arm left mounting bracket and an upper control arm right mounting bracket are respectively arranged on the middle parts of the left longitudinal pipe and the right longitudinal pipe; a stabilizing rod left mounting bracket and a stabilizing rod right mounting bracket are arranged on the upper parts of the left longitudinal pipe and the right longitudinal pipe; a No. II swing arm left mounting bracket and a No. II swing arm right mounting bracket are arranged on the middle part of the rear horizontal pipe; a No. I swing arm left mounting bracket and a No. I swing arm right mounting bracket are respectively arranged on the end parts of the two ends of the front horizontal pipe; the cross sections of the pipe body sections of the rear horizontal pipe, the left longitudinal pipe and the right longitudinal pipe are consistent; the cross sections of the two ends of the rear horizontal pipe are U-shaped after the two ends of the rear horizontal pipe are pressed and bonded; reinforcing plates are arranged at the two ends of the rear horizontal pipe. The vehicle rear sub-frame is simple in molding process, reasonable in overall structure and high in safety, and the fatigue resistance is enhanced.
Description
Technical field
The invention belongs to field of automobile, refer in particular to a kind of automobile rear sub-frame.
Background technology
Automobile accessory frame is the support of supporting tandem axle, suspension, makes vehicle bridge, hangs and be connected with vehicle body by it again, has the effect intercepting vibration & noise.Automobile accessory frame is one and closes very much heavy parts, to its be attached region body structure have higher requirements, the structure of the car body be therefore connected with subframe and periphery load bearing element, and the design of the connection mode of subframe and car body just seems particularly important.
In prior art; the connection of subframe and car body is generally the connection mode adopting bolt and nut; major way adopts nutplate and nut box to coordinate; nutplate base and body parts are fitted; nutplate top is through hole jaggy on nut box; its action radius is restrained like this, and then three limits of nut box and body parts weld weld together by protecting.The nutplate shape of this structure is square, the about 30mm of the length of side, thickness 5mm, owing to being subject to the limitation of this body structure of nutplate, the connecting length of nutplate and bolt falls short of, and is only 14.5mm, can not meets the requirement of the impulsive force that middle-and-high-ranking vehicle is born, and there is no directional tagging during bolt installation, be easy to lose efficacy because stripped thread causes bolt to be installed.
Summary of the invention
The object of this invention is to provide a kind of processing technology simple, save productive costs, production efficiency is high, the transmission of stress is smooth and easy, be uniformly dispersed, and improves the automobile rear sub-frame of safety.
The object of the present invention is achieved like this: automobile rear sub-frame, comprise front transverse tube and rear cross-tube, and the left longitudinal tubule (L tubule) be connected with front transverse tube and rear cross-tube respectively and right longitudinal tubule (L tubule), four one-tenth " well " word structures, described front transverse tube two ends and described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) junction are respectively arranged with interior connecting panel and outside link plate, and are connected by the mode of welding, wherein, the middle part of described left longitudinal tubule (L tubule) is provided with upper suspension arm left installation bracket, and top is provided with stabilizer rod left installation bracket; The middle part of described right longitudinal tubule (L tubule) is provided with upper suspension arm right mounting bracket, and top is provided with stabilizer rod right mounting bracket; No. II swing arm left installation bracket and No. II swing arm right mounting bracket is provided with in the middle part of described rear cross-tube; The end at described front transverse tube two ends is respectively arranged with No. I swing arm left installation bracket and No. I swing arm right mounting bracket; The cross-sectional plane of the pipe shaft section of described rear cross-tube is consistent, the cross-sectional plane of the pipe shaft section of described left longitudinal tubule (L tubule) is consistent, the cross-sectional plane of the pipe shaft section of described right longitudinal tubule (L tubule) is consistent, simplified processing process, soon shaping, efficiency is high, cost-saving, makes being evenly distributed of stress, transmits smooth and easy, can not concentrations, cross-sectional plane after two side pressures bundles of described rear cross-tube is U-shaped, and the two ends of rear cross-tube are provided with brace panel, and the stress bearing capacity of end is improved in local, avoid the integral thickness by increasing rear cross-tube to improve stress bearing capacity, and cause the waste of material.
According to upper described automobile rear sub-frame, wherein, the end of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) and described rear cross-tube junction is ellipticity, increases the length of weld seam, improves the smoothness of Stress transmit, avoids stress too concentrated, cause fatigue of material to ftracture.
According to upper described automobile rear sub-frame, wherein, the cross-sectional plane of described rear cross-tube, left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) is circular, and described interior connecting panel and outside link plate are provided with shirt rim I, described shirt rim I is welded on the outer wall of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule), by shirt rim I enlarge active surface, realize welding of face and face, improve stress bearing capacity, simultaneously, by the transition of shirt rim I, improve the smoothness of Stress transmit, avoid stress concentrations.
According to upper described automobile rear sub-frame, wherein, described upper suspension arm left installation bracket and upper suspension arm right mounting bracket, and stabilizer rod left installation bracket and stabilizer rod right mounting bracket are provided with shirt rim II, described shirt rim II is welded on the outer wall of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule).By shirt rim II enlarge active surface, realize welding of face and face, improve stress bearing capacity, meanwhile, by the transition of shirt rim II, improve the smoothness of Stress transmit, avoid stress concentrations.
According to upper described automobile rear sub-frame, wherein, described No. II swing arm left installation bracket and No. II swing arm right mounting bracket and described rear cross-tube junction are provided with shirt rim III.By shirt rim III enlarge active surface, realize welding of face and face, improve stress bearing capacity, meanwhile, by the transition of shirt rim III, improve the smoothness of Stress transmit, avoid stress concentrations.
The present invention gives prominence to compared to existing technology and useful technique effect is: forming process is simple, reasonable integral structure, and fatigue resistance strengthens, and safety performance is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the close-up schematic view in Fig. 1;
Fig. 3 is vehicle frame stiffness analysis table;
In figure: 10-rear cross-tube, transverse tube before 11-, the left longitudinal tubule (L tubule) of 12-, the right longitudinal tubule (L tubule) of 13-, connecting panel in 14-, 15-outside link plate, 16-stabilizer rod left installation bracket, 17-stabilizer rod right mounting bracket, 18-upper suspension arm left installation bracket, 19-upper suspension arm right mounting bracket, 20-No. II swing arm left installation bracket, 21-No. II swing arm right mounting bracket, 22-No. I swing arm left installation bracket, 23-No. I swing arm right mounting bracket, 24-brace panel, shirt rim, shirt rim II, 27-, 25-shirt rim I, 26-III.
Detailed description of the invention
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, see Fig. 1-3: automobile rear sub-frame, comprise front transverse tube 11 and rear cross-tube 10, and the left longitudinal tubule (L tubule) 12 be connected with front transverse tube 11 and rear cross-tube 10 respectively and right longitudinal tubule (L tubule) 13, four one-tenth " well " word structures, described front transverse tube 11 two ends and described left longitudinal tubule (L tubule) 12 and right longitudinal tubule (L tubule) 13 junction are respectively arranged with interior connecting panel 14 and outside link plate 15, and connected by the mode of welding, described left longitudinal tubule (L tubule) 12 and right longitudinal tubule (L tubule) 13 are ellipticity with the end of described rear cross-tube 10 junction, increase the length of weld seam, improve the smoothness of Stress transmit, avoid stress too concentrated, fatigue of material is caused to ftracture.Wherein, the middle part of described left longitudinal tubule (L tubule) 12 is provided with upper suspension arm left installation bracket 18, and top is provided with stabilizer rod left installation bracket 16; The middle part of described right longitudinal tubule (L tubule) 13 is provided with upper suspension arm right mounting bracket 19, and top is provided with stabilizer rod right mounting bracket 17; No. II swing arm left installation bracket 20 and No. II swing arm right mounting bracket 21 is provided with in the middle part of described rear cross-tube 10; The end at described front transverse tube 11 two ends is respectively arranged with No. I swing arm left installation bracket 22 and No. I swing arm right mounting bracket 23; The cross-sectional plane of the pipe shaft section of described rear cross-tube 10 is consistent, the cross-sectional plane of the pipe shaft section of described left longitudinal tubule (L tubule) 12 is consistent, and the cross-sectional plane of the pipe shaft section of described right longitudinal tubule (L tubule) 13 is consistent, simplified processing process, soon shaping, efficiency is high, cost-saving, and the cross-sectional plane after two side pressures bundles of described rear cross-tube 10 is U-shaped, and the two ends of rear cross-tube 10 are provided with brace panel 24, the stress bearing capacity of end is improved in local, avoids the integral thickness by increasing rear cross-tube 10 to improve stress bearing capacity, and causes the waste of material.
The cross-sectional plane of described rear cross-tube 10, left longitudinal tubule (L tubule) 12 and right longitudinal tubule (L tubule) 13 is circular, described interior connecting panel 14 and outside link plate 15 are provided with shirt rim I 25, described shirt rim I 25 is welded on the outer wall of described left longitudinal tubule (L tubule) 12 and right longitudinal tubule (L tubule) 13, by shirt rim I 25 enlarge active surface, realize welding of face and face, improve stress bearing capacity, simultaneously, by the transition of shirt rim I 25, improve the smoothness of Stress transmit, avoid stress concentrations.
Described upper suspension arm left installation bracket 18 and upper suspension arm right mounting bracket 19, and stabilizer rod left installation bracket 16 and stabilizer rod right mounting bracket 17 are provided with shirt rim II 26, described shirt rim II 26 is welded on the outer wall of described left longitudinal tubule (L tubule) 12 and right longitudinal tubule (L tubule) 13.By shirt rim II 26 enlarge active surface, realize welding of face and face, improve stress bearing capacity, meanwhile, by the transition of shirt rim II 26, improve the smoothness of Stress transmit, avoid stress concentrations.
Described No. II swing arm left installation bracket 20 and No. II swing arm right mounting bracket 21 are provided with shirt rim III 27 with described rear cross-tube 10 junction.By shirt rim III 27 enlarge active surface, realize welding of face and face, improve stress bearing capacity, meanwhile, by the transition of shirt rim III 27, improve the smoothness of Stress transmit, avoid stress concentrations.
Composition graphs 1 and Fig. 3 being analyzed as follows Rear secondary frame for vehicle rigidity:
Constraint Rear secondary frame for vehicle vehicle body point of connection 6 degree of freedom, load No. I swing arm (left and right) mounting bracket point of connection 10kN, No. II swing arm (left and right) mounting bracket point of connection 10kN, upper suspension arm (left and right) mounting bracket point of connection 10kN, stabilizer rod (left and right) mounting bracket point of connection 2kN respectively.
From X, Y, Z tri-directions, load is applied respectively to above-mentioned several point of connection, after stressed, each direction of each point of connection produces displacement accordingly, also have corresponding rigidity value.Analysis result is as the form in Fig. 3, and the rigidity of Rear secondary frame for vehicle meets the rigidity value of target call completely.
Meanwhile, following test has also been done to Rear secondary frame for vehicle:
1, composite condition, composite condition maximum stress 180MPa, is less than material yield strength.
2, move ahead braking, and move ahead braking maximum stress 110MPa, is less than material yield strength.
3, cross hole operating mode, cross hole operating mode maximum stress 224MPa, be less than material yield strength.
4, lateral impact 1, lateral impact 1 maximum stress 174MPa, is less than material yield strength.
5, lateral impact 2, lateral impact 2 maximum stress 153MPa, is less than material yield strength.
6, reversing is topped bar, and move backward the maximum stress 148MPa that tops bar, and is less than material yield strength.
7, vertical impact, vertical impact maximum stress 187MPa, is less than material yield strength.
Above-mentioned test is the safety test subject of automobile industry standard, and its data are also authentic and valid, from test result, Rear secondary frame for vehicle maximum stress is 224MPa, and the yield strength of material can reach 300MPa in the present invention, be less than material yield strength, meet requirement of strength completely.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (5)
1. automobile rear sub-frame, comprise front transverse tube and rear cross-tube, and the left longitudinal tubule (L tubule) be connected with front transverse tube and rear cross-tube respectively and right longitudinal tubule (L tubule), four one-tenth " well " word structures, described front transverse tube two ends and described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) junction are respectively arranged with interior connecting panel and outside link plate, it is characterized in that: the middle part of described left longitudinal tubule (L tubule) is provided with upper suspension arm left installation bracket, and top is provided with stabilizer rod left installation bracket; The middle part of described right longitudinal tubule (L tubule) is provided with upper suspension arm right mounting bracket, and top is provided with stabilizer rod right mounting bracket; No. II swing arm left installation bracket and No. II swing arm right mounting bracket is provided with in the middle part of described rear cross-tube; The end at described front transverse tube two ends is respectively arranged with No. I swing arm left installation bracket and No. I swing arm right mounting bracket; The cross-sectional plane of the pipe shaft section of described rear cross-tube is consistent, and the cross-sectional plane of the pipe shaft section of described left longitudinal tubule (L tubule) is consistent, and the cross-sectional plane of the pipe shaft section of described right longitudinal tubule (L tubule) is consistent, and the cross-sectional plane after two side pressures bundles of described rear cross-tube is U-shaped, and the two ends of rear cross-tube are provided with brace panel.
2. automobile rear sub-frame according to claim 1, is characterized in that: the end of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) and described rear cross-tube junction is ellipticity.
3. automobile rear sub-frame according to claim 1, it is characterized in that: the cross-sectional plane of described rear cross-tube, left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule) is for circular, described interior connecting panel and outside link plate are provided with shirt rim I, and described shirt rim I is welded on the outer wall of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule).
4. automobile rear sub-frame according to claim 1, it is characterized in that: described upper suspension arm left installation bracket and upper suspension arm right mounting bracket, and stabilizer rod left installation bracket and stabilizer rod right mounting bracket are provided with shirt rim II, described shirt rim II is welded on the outer wall of described left longitudinal tubule (L tubule) and right longitudinal tubule (L tubule).
5. automobile rear sub-frame according to claim 1, is characterized in that: described No. II swing arm left installation bracket and No. II swing arm right mounting bracket and described rear cross-tube junction are provided with shirt rim III.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727885.5A CN104554444B (en) | 2014-12-03 | 2014-12-03 | Automobile rear sub-frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727885.5A CN104554444B (en) | 2014-12-03 | 2014-12-03 | Automobile rear sub-frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104554444A true CN104554444A (en) | 2015-04-29 |
| CN104554444B CN104554444B (en) | 2017-12-12 |
Family
ID=53071765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727885.5A Active CN104554444B (en) | 2014-12-03 | 2014-12-03 | Automobile rear sub-frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104554444B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878562A (en) * | 2017-11-02 | 2018-04-06 | 安徽万安汽车零部件有限公司 | A kind of hollow low pressure casting multi link 4 wheel driven Rear secondary frame for vehicle of Integral aluminum alloy |
| CN112141213A (en) * | 2019-06-28 | 2020-12-29 | 广州汽车集团股份有限公司 | Rear auxiliary frame and automobile |
| US20240278836A1 (en) * | 2021-08-19 | 2024-08-22 | Nippon Steel Corporation | Automobile suspension structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511096B1 (en) * | 1999-03-06 | 2003-01-28 | Dr. Ing. H.C.F. Porsche Ag | Subframe for a motor vehicle |
| CN201424053Y (en) * | 2008-02-22 | 2010-03-17 | F.波尔希名誉工学博士公司 | Subframe for car rear axle |
| KR20100056953A (en) * | 2008-11-20 | 2010-05-28 | 현대자동차주식회사 | Dynamic damping apparatus |
| CN202098460U (en) * | 2011-06-03 | 2012-01-04 | 上海汇众汽车制造有限公司 | Auxiliary frame with plug welding groove structures for strengthening |
| KR20130016509A (en) * | 2011-08-08 | 2013-02-18 | 현대자동차주식회사 | Structure of front subframe |
| CN202966434U (en) * | 2012-11-30 | 2013-06-05 | 广州汽车集团股份有限公司 | Automobile rear subframe and corresponding automobile |
| CN204415511U (en) * | 2014-12-03 | 2015-06-24 | 浙江福多纳汽车部件有限公司 | Automobile rear sub-frame |
-
2014
- 2014-12-03 CN CN201410727885.5A patent/CN104554444B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511096B1 (en) * | 1999-03-06 | 2003-01-28 | Dr. Ing. H.C.F. Porsche Ag | Subframe for a motor vehicle |
| CN201424053Y (en) * | 2008-02-22 | 2010-03-17 | F.波尔希名誉工学博士公司 | Subframe for car rear axle |
| KR20100056953A (en) * | 2008-11-20 | 2010-05-28 | 현대자동차주식회사 | Dynamic damping apparatus |
| CN202098460U (en) * | 2011-06-03 | 2012-01-04 | 上海汇众汽车制造有限公司 | Auxiliary frame with plug welding groove structures for strengthening |
| KR20130016509A (en) * | 2011-08-08 | 2013-02-18 | 현대자동차주식회사 | Structure of front subframe |
| CN202966434U (en) * | 2012-11-30 | 2013-06-05 | 广州汽车集团股份有限公司 | Automobile rear subframe and corresponding automobile |
| CN204415511U (en) * | 2014-12-03 | 2015-06-24 | 浙江福多纳汽车部件有限公司 | Automobile rear sub-frame |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878562A (en) * | 2017-11-02 | 2018-04-06 | 安徽万安汽车零部件有限公司 | A kind of hollow low pressure casting multi link 4 wheel driven Rear secondary frame for vehicle of Integral aluminum alloy |
| CN112141213A (en) * | 2019-06-28 | 2020-12-29 | 广州汽车集团股份有限公司 | Rear auxiliary frame and automobile |
| US20240278836A1 (en) * | 2021-08-19 | 2024-08-22 | Nippon Steel Corporation | Automobile suspension structure |
| US12246772B2 (en) * | 2021-08-19 | 2025-03-11 | Nippon Steel Corporation | Automobile suspension structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104554444B (en) | 2017-12-12 |
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Effective date of registration: 20180205 Address after: 321200 industrial peony South Road, Baihua Mountain, Wuyi County, Jinhua, Zhejiang Province, No. 36 Patentee after: Zhejiang tuin Auto Parts Co., Ltd. Address before: 321299 Rose Road No. 1, Baihua Mountain industrial area, Wuyi County, Jinhua, Zhejiang Patentee before: ZHEJIANG FURTUNA AUTO PARTS CO., LTD. |
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| TR01 | Transfer of patent right |