CN101462476A - Torsion beam type suspension fork - Google Patents
Torsion beam type suspension fork Download PDFInfo
- Publication number
- CN101462476A CN101462476A CNA2009100015491A CN200910001549A CN101462476A CN 101462476 A CN101462476 A CN 101462476A CN A2009100015491 A CNA2009100015491 A CN A2009100015491A CN 200910001549 A CN200910001549 A CN 200910001549A CN 101462476 A CN101462476 A CN 101462476A
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- torsion beam
- vehicle
- suspension
- trailing arm
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Abstract
The invention relates to a torsion beam type suspension fork, which comprises a pair of torsion beams distributed on the left side and the right side of a vehicle and extending along the front and the back directions of the vehicle, wherein the front ends of the torsion beams are supported on the vehicle body through rubber bushings, the back ends support suspension fork longitudinal arms of back wheels and extend along the width direction of the vehicle, and the two ends along the length direction are connected with the left and the right suspension fork longitudinal arms respectively. At the joint parts of the torsion beams and the suspension fork longitudinal arms, the sectional area of the end parts of the torsion beams is larger than that of the middle parts of the torsion beams; the end parts of the torsion beams are provided with flange parts extending along the front and the back directions of the vehicle, and the flange parts and the end parts of the torsion beams, and the end parts of the torsion beams and the middle parts of the torsion beams have smooth transitions; the middle parts of the torsion beams curl towards the upper side, the lower side and the back side respectively along the upper and the lower edges of the front ends in the front and the back directions of the vehicle; the front side parts of the suspension fork longitudinal arms from the bushings to the front ends of linear parts extend towards the inner side in the width direction of the vehicle; and extension lines of the linear parts of the suspension fork longitudinal arms pass through the center of a spring base. Adopting the torsion beam type suspension fork, the stress on the joint parts of the suspension fork longitudinal arms and the torsion beams can be dispersed properly so as to prevent stress concentration to cause crazing.
Description
Technical field
The present invention relates to a kind of torsion beam type suspension (Torsion Beam Suspension) device of vehicle, particularly a kind of torsional beam type suspension device that has adopted the structure of raising torsion beam and suspension trailing arm (Trailing arm) anchoring strength.
Background technology
In the past, as the draft hitch of vehicle, known have a kind ofly will be connected the torsion beam type suspension that constitutes by the torsion beam of extending along the left and right sides suspension trailing arm that the vehicle fore-and-aft direction extends along the overall width direction.
This torsion beam type suspension, for example the Chinese patent publication number is shown in CN101143551A number, is provided with the torsion beam joint portion at suspension trailing arm to be connected support, to improve the joint portion rigidity, disperses the stress concentration of joint portion.
Summary of the invention
The objective of the invention is to, provide a kind of can be suitable the reduction torsion beam and the torsion beam type suspension of the stress of suspension trailing arm joint portion.
Torsion beam type suspension of the present invention comprises a pair of vehicle left side and the right side of being distributed in, and extends along the vehicle fore-and-aft direction, and front end is supported on the vehicle body by rubber bush, and the suspension trailing arm of trailing wheel is supported in the rear end; Above-mentioned suspension trailing arm, the front part till from the lining sleeve pipe to the straight line portion front end extend to vehicle-width direction is inboard; Linear portion part extended line is by the center of spring perch; This feature can be smooth-going the thrust that suspension trailing arm is suffered and pulling force along the suspension trailing arm transmission, and can not produce extra moment of flexure.Torsion beam type suspension also comprises along vehicle-width direction and extending, the two ends of its length direction respectively with above-mentioned left and right sides suspension trailing arm centre portion bonded assembly torsion beam, this torsion beam centre portion is provided with along the last lower edge of the front end of vehicle fore-and-aft direction and reaches backward the flange that curls respectively up and down; At above-mentioned torsion beam and suspension trailing arm binding site, the end area of section of torsion beam is greater than the area of section of torsion beam centre portion, and its end edge is provided with flange; Be provided with the spring perch of mounting spring base at the rear side of the two ends of the length direction of above-mentioned torsion beam and above-mentioned suspension trailing arm connecting bridge, this spring perch is fixed on above-mentioned torsion beam and the suspension trailing arm; At above-mentioned spring perch and above-mentioned suspension trailing arm connecting portion rear side, be provided with the bumper mount pad that is used for mounting shock absorber; Above-mentioned bumper mount pad has mounting shock absorber and is connected to two sidewall sections of above-mentioned suspension trailing arm and above-mentioned spring perch, and the rib that extends to vehicle-width direction from two sidewalls.
Adopt technology in the past,, may produce unnecessary welding deformation and weld defect, mean that simultaneously cost may increase because will increase part and increase welding sequence.But employing said structure, only increase the torsion beam end cross-sectional, the fusion length lengthening that torsion beam is combined with suspension trailing arm, and the torsion beam front end boss is less near torsion beam centre portion rigidity, can effectively disperse torsion beam and suspension trailing arm in conjunction with the stress concentration that goes out weld seam.
Above-mentioned torsion beam type suspension does not increase part, does not increase welding sequence, can reach the purpose that reduces welding stress, helps cost-cutting.
In above-mentioned torsion beam type suspension, above-mentioned flange portion can replace with added parts, but must be connected with above-mentioned suspension trailing arm with above-mentioned torsion beam.
Description of drawings
Fig. 1 is the birds-eye view of torsion beam type suspension of the present invention.
Fig. 2 is the birds-eye view of torsion beam type suspension left part of the present invention.
Fig. 3 is the view from the inboard left part of observing of vehicle-width direction of torsion beam type suspension of the present invention.
Fig. 4: torsion beam type suspension involved in the present invention from the vehicle fore-and-aft direction from after forward observation view.
Fig. 5: the view of the left part of observing from the vehicle-width direction outside of torsion beam type suspension involved in the present invention.
Mark among the figure: 1, torsion beam type suspension; 2, suspension trailing arm; 3, torsion beam; 4, lining sleeve pipe; 5, hub spindle support; 6, spring perch; 7, shock absorber support; 8, coil spring; 9, bumper; The centre portion of 2a, suspension trailing arm fore-and-aft direction; The front part of 2b, suspension trailing arm fore-and-aft direction; 2c, the suspension trailing arm rear section till from the rear end of middle part 2a to hub spindle support 5; 2d, suspension trailing arm rear portion 2c are near the opening at support 5 places; 2e, suspension trailing arm front part 2b are to the straight line portion of centre portion 2a; The both ends of 3a, torsion beam 3 length directions; The centre portion of 3b, torsion beam 3 length directions; The flange part that the end 3a of 3d, torsion beam 3 extends forward along the vehicle fore-and-aft direction.
The specific embodiment
To shown in Figure 2, torsion beam type suspension 1 comprises along the pair of right and left suspension trailing arm 2 of vehicle fore-and-aft direction extension and the torsion beam 3 of extending along vehicle-width direction as Fig. 1.Be welded on the fore-and-aft direction centre portion 2a of suspension trailing arm 2 by the 3a that respectively holds with the length direction of torsion beam 3, the two ends that are formed on torsion beam 3 connect the structure of a pair of suspension trailing arm 2.
As shown in Figure 3, torsion beam 3, by the punching press steel formability, its length direction both ends 3a reaches centre portion 3b, has the special-shaped section shape of opening: " U " shape cross-section structure.As shown in Figure 2, the area of section of the end 3a of torsion beam 3 is greater than the area of section of torsion beam 3 centre portion 3b, in addition, the end 3a of torsion beam 3 has the flange part 3d that extends forward along the vehicle fore-and-aft direction, the end 3a of this flange part 3d and torsion beam 3, and end 3a and torsion beam 3 centre portion 3b seamlessly transit.By this structure, can effective dispersion be positioned at the torsion beam 3 end 3a welding stress of side weld outward.In addition, the centre portion 3b of torsion beam 3, its last lower edge along the front end of vehicle fore-and-aft direction reach the curling 3c of rear side respectively up and down.By this structure, can effectively increase the lateral rigidity of torsion beam 3, and then improve the lateral rigidity of torsion beam type suspension 1.
As shown in Figure 2, suspension trailing arm 2, its front end is connected with lining sleeve pipe 4, and lining sleeve pipe 4 is supported on the vehicle body by the lining (not shown); The rear end of suspension trailing arm 2 is connected with hub spindle support 5, and trailing wheel and associated components (not shown) support by this hub spindle support 5.
As shown in Figure 2, suspension trailing arm 2 is from overlooking direction, and to the vehicle-width direction inside bend, promptly suspension trailing arm 2, extends to the vehicle-width direction inboard from the front part 2b that overlooks till direction is seen from lining sleeve pipe 4 to straight line portion 2e front end; As feature of the present invention, the linear portion part 2e of above-mentioned suspension trailing arm 2, from birds-eye view, its extended line necessarily passes through the center of spring perch 6, this feature can be smooth-going thrust that suspension trailing arm 2 is suffered and pulling force transmit along suspension trailing arm 2, and do not make suspension trailing arm 2 be subjected to extra moment of flexure; Centre portion 2a is from its front end extending towards the vehicle-width direction outside to a certain degree to the back-end; In addition, the rear section 2c till from the rear end of middle part 2a to hub spindle support 5 extends towards the vehicle-width direction outside to hub spindle support 5 significantly from middle part 2a; Its rear portion 2c has opening 2d near hub spindle support 5 places, is used for sensor installation.
As shown in Figure 5, suspension trailing arm 2 is from left direction, and its front part 2b is downward-sloping slightly, from straight line portion 2e to hub spindle support 5 diagonally extendings.
As Fig. 2, shown in Figure 3, torsion beam type suspension 1 also comprises spring perch 6, and spring perch 6 is arranged on the part that constitutes between the two ends 3a of length direction of the rear section 2c of suspension trailing arm 2 and torsion beam 3.Coil spring 8 is installed on the base plane of spring perch 6.
As Fig. 3, shown in Figure 5, spring perch 6 has by this spring perch 6 bottoms flange part 11,12 and flange part 13,14 that bending forms that make progress, and these several parts form 3-D solid structure together.As shown in Figure 3, spring perch 6 has the sidewall 12a that is extended to torsion beam 3 along the vehicle fore-and-aft direction by flange part 12, and its upper surface must surpass the axis of torsion beam 3, and is overlapped on the torsion beam 3.As shown in Figure 2, spring perch 6 also has by flange part 13 and extends to the sidewall 13b of suspension trailing arm 2 along vehicle-width direction, this sidewall 13b and suspension trailing arm 2 overlap joints, and on vehicle-height direction, the upper surface of sidewall 13b need be higher than the axis of suspension trailing arm 2.
As shown in Figure 4, on the torsion beam type suspension 1, rear portion at spring perch 6 and suspension trailing arm 2 is provided with shock absorber support 7, two side 7b, the 7c of shock absorber support 7 forms flange part 7a, 7d along the vehicle-width direction bending, shock absorber support 7 is connected with suspension trailing arm 2 by sidewall 7b and the flange part 7a along the vehicle-width direction outside, and wherein flange part 7a also is connected with hub spindle support 5; Shock absorber support 7 is connected with spring perch 6 by sidewall 7c and the flange part 7b along the vehicle-width direction inboard.By above measure, make shock absorber support 7 have enough intensity to come the load of self-supporting bumper 9.
Claims (8)
1, a kind of torsion beam type suspension, comprise a pair of vehicle left side and the right side of being distributed in, extend along the vehicle fore-and-aft direction, front end is supported on the vehicle body by rubber bush, the rear end is supported the suspension trailing arm of trailing wheel and is extended along vehicle-width direction, the two ends of its length direction respectively with left and right sides suspension trailing arm bonded assembly torsion beam, it is characterized in that: described torsion beam and suspension trailing arm binding site are the area of section of the end area of section of torsion beam greater than the torsion beam centre portion.
2, torsion beam type suspension as claimed in claim 1 is characterized in that: the end of described torsion beam is provided with flange.
3, torsion beam type suspension as claimed in claim 2 is characterized in that: the flange of described torsion beam end extends forward along the vehicle fore-and-aft direction.
4, torsion beam type suspension as claimed in claim 3 is characterized in that: the flange part of described torsion beam end and the end of torsion beam, and the end of torsion beam and torsion beam centre portion seamlessly transit.
5, as each described torsion beam type suspension of claim 1-4, it is characterized in that: the centre portion of described torsion beam is provided with along the last lower edge of the front end of vehicle fore-and-aft direction and reaches the flange that rear side curls respectively up and down.
6, torsion beam type suspension as claimed in claim 5 is characterized in that: described suspension trailing arm comprises lining sleeve pipe and straight line portion, and the front part of described suspension trailing arm till from the lining sleeve pipe to the straight line portion front end extended to vehicle-width direction is inboard.
7, torsion beam type suspension as claimed in claim 6, it is characterized in that: described suspension also is included in the spring perch that the rear side of the two ends of length direction of described torsion beam and described suspension trailing arm connecting bridge is provided with, wherein, the linear portion part extended line of described suspension trailing arm is by the center of described spring perch.
8, torsion beam type suspension as claimed in claim 7 is characterized in that: the connecting portion rear side at described spring perch and described suspension trailing arm is provided with the bumper mount pad; Described bumper mount pad has two sidewall sections that are connected to described suspension trailing arm and described spring perch, and from the rib of two sidewalls to the vehicle-width direction extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100015491A CN101462476A (en) | 2009-01-12 | 2009-01-12 | Torsion beam type suspension fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100015491A CN101462476A (en) | 2009-01-12 | 2009-01-12 | Torsion beam type suspension fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101462476A true CN101462476A (en) | 2009-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100015491A Pending CN101462476A (en) | 2009-01-12 | 2009-01-12 | Torsion beam type suspension fork |
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| Country | Link |
|---|---|
| CN (1) | CN101462476A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830155A (en) * | 2010-05-21 | 2010-09-15 | 奇瑞汽车股份有限公司 | Adjustable toein torsion beam suspension and forming method thereof |
| CN103213471A (en) * | 2013-04-24 | 2013-07-24 | 奇瑞汽车股份有限公司 | Torsion beam with adjustable rear axle stiffness |
| CN103511825A (en) * | 2012-06-15 | 2014-01-15 | 上海汇众汽车制造有限公司 | Lining casing pipe for car frame and forming method thereof |
| CN103738138A (en) * | 2014-01-23 | 2014-04-23 | 奇瑞汽车股份有限公司 | Torsion beam suspension |
| CN104200043A (en) * | 2014-09-18 | 2014-12-10 | 山东理工大学 | Suspension stabilizer bar rubber bushing length design method |
| CN105172514A (en) * | 2014-06-13 | 2015-12-23 | 福特全球技术公司 | Torsion profile for a twist beam axle and correspondingly equipped vehicle |
| CN105799441A (en) * | 2016-04-29 | 2016-07-27 | 上汽通用五菱汽车股份有限公司 | Torsion beam spring base structure |
| CN107985002A (en) * | 2017-12-15 | 2018-05-04 | 阿尔特汽车技术股份有限公司 | Torsion beam welding assembly structure |
| CN110475681A (en) * | 2017-03-27 | 2019-11-19 | 马自达汽车株式会社 | Rear overhang rack construction |
| CN111114227A (en) * | 2018-10-30 | 2020-05-08 | 长城汽车股份有限公司 | Torsion beam suspension structure |
-
2009
- 2009-01-12 CN CNA2009100015491A patent/CN101462476A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830155B (en) * | 2010-05-21 | 2012-09-05 | 奇瑞汽车股份有限公司 | Adjustable toein torsion beam suspension and forming method thereof |
| CN101830155A (en) * | 2010-05-21 | 2010-09-15 | 奇瑞汽车股份有限公司 | Adjustable toein torsion beam suspension and forming method thereof |
| CN103511825A (en) * | 2012-06-15 | 2014-01-15 | 上海汇众汽车制造有限公司 | Lining casing pipe for car frame and forming method thereof |
| CN103511825B (en) * | 2012-06-15 | 2016-03-16 | 上海汇众汽车制造有限公司 | Vehicle frame bushing sleeves and forming method thereof |
| CN103213471A (en) * | 2013-04-24 | 2013-07-24 | 奇瑞汽车股份有限公司 | Torsion beam with adjustable rear axle stiffness |
| CN103738138A (en) * | 2014-01-23 | 2014-04-23 | 奇瑞汽车股份有限公司 | Torsion beam suspension |
| CN105172514B (en) * | 2014-06-13 | 2019-06-14 | 福特全球技术公司 | The torsion profile elements and twist beam axle of twist beam axle and with the vehicle accordingly equipped |
| CN105172514A (en) * | 2014-06-13 | 2015-12-23 | 福特全球技术公司 | Torsion profile for a twist beam axle and correspondingly equipped vehicle |
| CN104200043A (en) * | 2014-09-18 | 2014-12-10 | 山东理工大学 | Suspension stabilizer bar rubber bushing length design method |
| CN104200043B (en) * | 2014-09-18 | 2018-04-10 | 山东理工大学 | The design method of suspension stabiliser bar rubber bushing length |
| CN105799441A (en) * | 2016-04-29 | 2016-07-27 | 上汽通用五菱汽车股份有限公司 | Torsion beam spring base structure |
| CN110475681A (en) * | 2017-03-27 | 2019-11-19 | 马自达汽车株式会社 | Rear overhang rack construction |
| CN110475681B (en) * | 2017-03-27 | 2023-03-10 | 马自达汽车株式会社 | Automobile rear suspension structure |
| CN107985002A (en) * | 2017-12-15 | 2018-05-04 | 阿尔特汽车技术股份有限公司 | Torsion beam welding assembly structure |
| CN107985002B (en) * | 2017-12-15 | 2024-03-08 | 阿尔特汽车技术股份有限公司 | Torsion beam welding assembly structure |
| CN111114227A (en) * | 2018-10-30 | 2020-05-08 | 长城汽车股份有限公司 | Torsion beam suspension structure |
| CN111114227B (en) * | 2018-10-30 | 2021-09-21 | 长城汽车股份有限公司 | Torsion beam suspension structure |
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Open date: 20090624 |