CN103660840A - Torsion beam suspension device - Google Patents
Torsion beam suspension device Download PDFInfo
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- CN103660840A CN103660840A CN201210322801.0A CN201210322801A CN103660840A CN 103660840 A CN103660840 A CN 103660840A CN 201210322801 A CN201210322801 A CN 201210322801A CN 103660840 A CN103660840 A CN 103660840A
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- torsion beam
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Abstract
The invention discloses a torsion beam suspension device for an automobile, and belongs to automotive chassis suspension systems. The torsion beam suspension device comprises a torsion beam perpendicular to the longitudinal direction of an automobile body and a pair of trailing arms connected to the two ends of the torsion beam in the longitudinal direction of the automobile body in a bilateral symmetry mode. Lightening holes are formed in the torsion beam, symmetric arc cutting is carried out on the bottom side of the torsion beam, and an arc bottom side structure that a large number of materials are used in two side large stress areas and few materials are used in a middle small stress area is formed on the torsion beam. The weight of the torsion beam is reduced, the material use ratio of the torsion beam is improved, and the endurance performance of the torsion beam is improved. Inertia impact force from the ground can be reduced due to the reduction of the weight, and the comfort can be improved when the automobile runs on an uneven road.
Description
Technical field
The present invention relates to automobile chassis suspension system, particularly relate to the torsion beam suspension apparatus that a kind of automobile is used.
Background technology
Torsion beam suspension apparatus is a vitals in chassis suspension fork of vehicle system.The draft hitch of vehicle is a kind of for hanging vehicle body and absorb the vibrations from road surface during vehicle operating, thereby prevents that vibrations are applied to vehicle body and passenger's constructional device.Therefore, draft hitch must be designed such that it can weaken the vibrations from road surface, although and have vibrations it also can make passenger not produce uncomfortable sensation, and can improve by the definite road-holding property of the ground contact force of tire during Vehicle Driving Cycle.Another key factor that will consider during draft hitch in design is, will be applied on draft hitch repeatedly, so draft hitch must keep the rigidity of expectation and the durability of expectation from the vibrations on road surface.
Torsion beam suspension apparatus generally by torsion beam, be symmetrically connected to torsion beam two ends two trailing arms, be separately positioned on the stabilizer rod that is parallel to torsion beam that symmetrical two the spring holder supports on two trailing arms, symmetrical two damper brackets, symmetrical two wheel stands, symmetrical two auxiliary stands and two ends are connected on auxiliary stand and form.When automotive operation, when left and right wheels is parallel while beating, torsion beam and stabilizer rod are inoperative, and wheel rotates around the connecting bushing of trailing arm and vehicle body.When vehicle right and left wheel is incorgruous while beating, for example vehicle is through uneven road surface or turning, and torsion beam and stabilizer rod can twist, and play the relative motion of controlling between left and right wheels, thereby control the amplitude of vehicle roll.Torsional stiffness is an important indicator of examination torsion beam, and the higher Roll control of torsional stiffness effect is better.Torsional stiffness is subject to torsion beam cross sectional shape, thickness and the impact of installation site on trailing arm.
Existing torsion beam suspension apparatus is revealed in some patent documentations.For example on April 13rd, 2006, disclosed WO 2006/038121 A1 international application announced a kind of torsion beam suspension apparatus, refer to shown in Fig. 1 and Fig. 2, this torsion beam suspension apparatus comprises a torsion beam (20), this torsion beam Width along vehicle under use state extends, its one end is to be connected with in a pair of left and right trailing arm (10) one, its other end is both with another in a pair of left and right trailing arm and is connected, wherein, this torsion beam is to be made by the pipe fitting with cylindrical shape; The axial middle part (21) of this pipe fitting is extruded and forms substantially V-shaped cross-sectional plane or the cross-sectional plane substantially taking the shape of the letter U; Lug boss (21a1,21a2) is arranged on by least one of the outer wall (21a) in the double-walled construction that forms of extruding pipe fitting and inwall (21b), these lug bosses be from the outer wall at its place and inwall one outstanding to not being provided with the outer wall of lug boss and another in inwall, and described outer wall and inwall are in contact with one another at lug boss place.Structure, can strengthen torsion beam rigidity and be convenient to processing location by this.Other existing torsion beam suspension apparatus also can be consulted PCT application disclose WO No. 2006/030921, No. US5813691st, US Patent, Chinese invention patent application CN200880001520.7, No. CN200880100212.X and Chinese utility model patent CN201120179979.5, the patent documentation such as No. CN201120048906.2.
Yet the disclosed torsion beam suspension apparatus of the prior art of above-mentioned document generally can cause himself weight to lay particular stress on.Thereby as how minimum weight obtains maximum torsional stiffness, how improving torsion beam stock utilization is the problem that this draft hitch need to solve.
Summary of the invention
One of object of the present invention is to provide a kind of torsion beam suspension apparatus, can improve the material use efficiency of torsion beam and the endurance quality that improves torsion beam, thereby obtain enough large torsional stiffness with less weight.
Another object of the present invention is to provide a kind of torsion beam suspension apparatus, can reduce greatly himself weight, thereby can reduce the inertial impact force from road surface, improves the traveling comfort of vehicle when uneven road surface travels.
To achieve these goals, the present invention proposes following technical scheme: a kind of torsion beam suspension apparatus, comprise perpendicular to vehicle body torsion beam and be longitudinally symmetrically connected to a pair of trailing arm at torsion beam two ends along vehicle body longitudinally, wherein, in this torsion beam, be provided with lightening hole.
Alternatively, in technical scheme of the present invention, Symmetrical Circular Arc cutting is carried out in the bottom side of torsion beam, thereby it is many to make torsion beam form high-stress area territory, both sides materials, the few arcuate bottom side structure of middle little stress area materials.
Alternatively, in technical scheme of the present invention, torsion beam is pressed sheet girder construction, and it has and is substantially in the shape of the letter V or the cross section of U font, comprises the first plate-girder part and the second plate-girder part.
Alternatively, in technical scheme of the present invention, in the first plate-girder part of torsion beam, punch out the lightening hole of a plurality of perforations, in the second plate-girder part, also punch out the lightening hole of a plurality of perforations.
Alternatively, in technical scheme of the present invention, the punched openings direction of torsion beam downward, the longitudinal the place ahead of vehicle body, the longitudinal rear of vehicle body or other any angular orientation.
Alternatively, in technical scheme of the present invention, thereby all stamping out otch, the two ends of the first plate-girder part of torsion beam and the second plate-girder part form torsion beam connector, for trailing arm is fixedly attached to torsion beam by welding manner.
Alternatively, in technical scheme of the present invention, the first plate-girder of torsion beam is partly gone up near the torsion beam connector position at two ends and is respectively offered a knock hole.
Alternatively, in technical scheme of the present invention, the first plate-girder of torsion beam is partly gone up from being adjacent to the both sides of knock hole and towards middle part direction, is evenly placed with a plurality of lightening holes respectively, and from the both sides corresponding to knock hole, is evenly placed with a plurality of lightening holes respectively towards middle part direction in the second plate-girder part.
Alternatively, in technical scheme of the present invention, the direct D of the lightening hole of torsion beam is 38mm, and the distance L at adjacent two lightening hole centers is 58mm.
Alternatively, in technical scheme of the present invention, the cutting radian radius R that Symmetrical Circular Arc cutting is carried out in the arc bottom side of torsion beam is 10m.
Alternatively, in technical scheme of the present invention, in the V of torsion beam font or U font inner space, stabilizer rod is installed, the two ends of this stabilizer rod are fixedly connected on respectively on the trailing arm at torsion beam two ends or are fixedly connected on the set auxiliary stand in torsion beam two ends.
Technical scheme of the present invention is compared with existing design plan, by some lightening holes are reasonably set in torsion beam, and Symmetrical Circular Arc cutting is carried out in the bottom side of torsion beam, thereby make high-stress area territory, both sides materials many, middle little stress area materials are few, greatly improved the material use efficiency of torsion beam, reasonably material arrangements has also improved the endurance quality of torsion beam greatly.In addition, the minimizing of weight can also reduce the inertial impact force from road surface, traveling comfort when raising vehicle uneven road surface travels.
Accompanying drawing explanation
Fig. 1 is the block diagram of the existing torsion beam suspension apparatus of WO 2006/038121 A1 international application published.
Fig. 2 is the cutaway sectional view of the torsion beam of prior art shown in Fig. 1.
Fig. 3 is the block diagram of torsion beam suspension apparatus of the present invention.
Fig. 4 is the upward view of the torsion beam suspension apparatus shown in Fig. 3.
Fig. 5 is the front view of the torsion beam in the present invention.
Fig. 6 is the block diagram of the torsion beam in the present invention.
Fig. 7 is the left view of the torsion beam in the present invention, has shown the cross sectional shape of torsion beam.
Wherein, the number designation in Fig. 3 to Fig. 7 is described as follows.
| 1 | ? | |
2 | ? | |
| 3 | ? | |
4 | ? | |
| 5 | ? | Wheel stand | 6 | ? | Vehicle body connecting bushing |
| 7 | ? | Auxiliary stand | 8 | ? | |
| 10 | ? | |
11 | ? | The first plate- |
| 12 | ? | The second plate- |
13 | ? | Arc |
| 14 | ? | Knock |
15、16 | ? | Lightening hole |
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail.
Easily understand, according to technical scheme of the present invention, do not changing under connotation of the present invention, one of ordinary skill in the art can propose various structures mode and the implementation that can mutually replace.Therefore, the following specific embodiment and accompanying drawing are only the exemplary illustrations to technical scheme of the present invention, and should not be considered as of the present invention all or be considered as the restriction of technical solution of the present invention or restriction.
The orientation terms such as the up, down, left, right, before and after that may occur in this manual, front, the back side, top, bottom are to define with respect to the structure shown in each accompanying drawing, they are relative concepts, therefore likely can correspondingly change according to its diverse location of living in, different use state.So, these or other orientation term should be interpreted as to restricted term yet.
Refer to shown in Fig. 3, torsion beam suspension apparatus of the present invention comprises perpendicular to the torsion beam 1 of vehicle body longitudinal (travel direction) and a pair of trailing arm 2 that is longitudinally symmetrically connected to torsion beam 1 two ends along vehicle body.As shown in Fig. 5, Fig. 6 and Fig. 7, this torsion beam 1 is pressed sheet girder construction, at one, preferably gets in embodiment, and its punched openings, has the cross section that is substantially inverted v-shaped or reverse U shape down.Easily understand, have the torsion beam 1 of V font or U shaped sections, its opening direction also can be towards the longitudinal the place ahead of vehicle body, rear or other any angular orientation.In Fig. 3 to Fig. 7 illustrated embodiment, torsion beam 1 has towards the first plate-girder part 11 in the longitudinal the place ahead of vehicle body with towards vertical rearward the second plate-girder part 12 of vehicle body, and, thereby the two ends of the first plate-girder part 11 and the second plate-girder part 12 all stamp out otch forms torsion beam connector 10, for trailing arm 2 is fixedly attached to torsion beam 1 by welding manner.
Please continue to refer to Fig. 3, the front end of trailing arm 2 is provided with vehicle body connecting bushing 6, by this vehicle body connecting bushing 6, is able to torsion beam suspension apparatus of the present invention be linked and packed to vehicle body (not shown) and torsion beam suspension apparatus can be rotated around the axle of basic horizontal.The rear end of trailing arm 2 is provided with wheel stand 5 toward the outer side, thereby in order to assembling wheels member (not shown), wheel and torsion beam suspension apparatus is assembled together.A pair of spring holder support 3 is symmetrically arranged on the inner side of trailing arm 2 and is adjacent to torsion beam 1, and in order to accept the lower end with setting screw spring (not shown), helical spring upper end connects and is supported in vehicle body.In addition, at the end of trailing arm 2, adjacent to the inner side of this spring holder support 3, be provided with damper bracket 4, for accepting the lower end with shock absorber for supporting (not shown), the upper end of shock absorber connects and is supported in vehicle body.Please further consult shown in Fig. 4 is the upward view of torsion beam suspension apparatus of the present invention, two ends in torsion beam 1 bottom side are further welded and are provided with a pair of auxiliary stand 7, a column stabilizer rod 8 is incorporated in the V font or U font inner space of torsion beam 1, and its two ends are welded to connect respectively on auxiliary stand 7.Easily understand, the thickness of this stabilizer rod 8 and thickness is specific design as required, and it can be hollow.
Refer to shown in Fig. 3 to Fig. 7, arc is arranged to by cutting in the bottom side 13 of torsion beam 1, and the cutting radius of the radian of this arc bottom side 13 is R.In a preferred embodiment, R is 10m.A knock hole 14 is respectively offered at torsion beam connector 10 positions near two ends in the first plate-girder part 11 of torsion beam 1, for the process for machining and manufacturing process in torsion beam 1, it is positioned.And, in the first plate-girder part 11, punch out the lightening hole 15 of a plurality of perforations, in the second plate-girder part 12, also punch out the lightening hole 16 of a plurality of perforations.In an embodiment shown in Fig. 3 to Fig. 7, in the first plate-girder part 11, from being adjacent to the both sides of knock hole 14, towards middle part direction, be evenly placed with 4 lightening holes 15 respectively, and from the both sides corresponding to knock hole 14, towards middle part direction, be evenly placed with 5 lightening holes 16 respectively in the second plate-girder part 12.Easily understand, the quantity of the lightening hole 15,16 in the above-mentioned specific embodiment is only one of possibility and not exclusive scheme, those skilled in the art is according to the performance requriements of dissimilar vehicle, can make suitable selection to the quantity of lightening hole, can be for example one, two or more; Same easily understand, lightening hole might not connect, be also not limited to poroid, such as being other structure that recess, otch etc. can alleviate torsion beam weight.
As shown in Fig. 5 and Fig. 7, with " D ", represent the diameter of lightening hole 15,16, with " L ", represent the distance at adjacent two the lightening hole centers in same plate-girder part, with " T ", represent the plate thickness of torsion beam 1.In an optional embodiment, the diameter D of lightening hole 15,16 is 38mm, and the distance L at adjacent two lightening hole centers is 58mm, and the plate thickness T of torsion beam is 4mm.
According to calculating, in the specific embodiment shown in above-mentioned Fig. 3 to Fig. 7,18 lightening holes 15,16 that cut out in torsion beam 1, can reduce the about 0.5Kg of weight, and the arc bottom side 13 Symmetrical Circular Arc cuttings of the first plate-girder part 11 and the second plate-girder part 12 also can reduce the about 0.5Kg of weight.Like this, altogether can reduce the weight of about 1Kg.The final weight of torsion beam 1 is 5.5Kg, and above-mentioned lightening hole 15,16 and arc bottom side 13 are reduced weight amplitude and reached 18% left and right, and the torsional stiffness of torsion beam 1 does not almost change.
The present invention by reasonably arranging some lightening holes 15,16 in torsion beam 1, and Symmetrical Circular Arc cutting is carried out in the bottom side 13 to torsion beam 1, thereby make high-stress area territory, both sides materials many, middle little stress area materials are few, greatly improved the material use efficiency of torsion beam 1, reasonably material arrangements has also improved the endurance quality of torsion beam 1 greatly.In addition, the minimizing of weight can also reduce the inertial impact force from road surface, traveling comfort when raising vehicle uneven road surface travels.
Claims (11)
1. a torsion beam suspension apparatus, is characterized in that, it comprises perpendicular to vehicle body torsion beam and be longitudinally symmetrically connected to a pair of trailing arm at described torsion beam two ends along vehicle body longitudinally, wherein, in described torsion beam, is provided with lightening hole.
2. torsion beam suspension apparatus according to claim 1, is characterized in that, Symmetrical Circular Arc cutting is carried out in the bottom side of described torsion beam, thereby it is many to make described torsion beam form high-stress area territory, both sides materials, the few arcuate bottom side structure of middle little stress area materials.
3. torsion beam suspension apparatus according to claim 1 and 2, is characterized in that, described torsion beam is pressed sheet girder construction, and it has and is substantially in the shape of the letter V or the cross section of U font, comprises the first plate-girder part and the second plate-girder part.
4. torsion beam suspension apparatus according to claim 3, is characterized in that, punches out the lightening hole of a plurality of perforations in the first plate-girder part of described torsion beam, also punches out the lightening hole of a plurality of perforations in described the second plate-girder part.
5. torsion beam suspension apparatus according to claim 3, is characterized in that, the punched openings direction of described torsion beam downward, the longitudinal the place ahead of vehicle body, the longitudinal rear of vehicle body or other any angular orientation.
6. torsion beam suspension apparatus according to claim 4, it is characterized in that, thereby the two ends of the first plate-girder part of described torsion beam and the second plate-girder part all stamp out otch and form torsion beam connector, for described trailing arm being welded and fixed to described torsion beam two ends.
7. torsion beam suspension apparatus according to claim 4, it is characterized in that, the first plate-girder of described torsion beam is partly gone up near the torsion beam connector position at two ends and is respectively offered a knock hole, in described the first plate-girder part, from being adjacent to the both sides of described knock hole, towards middle part direction, be evenly placed with a plurality of lightening holes respectively, and from the both sides corresponding to described knock hole, towards middle part direction, be evenly placed with a plurality of lightening holes respectively in the second plate-girder part.
8. according to the torsion beam suspension apparatus described in claim 1 or 7, it is characterized in that, the direct D of the lightening hole of described torsion beam is 38mm, and the distance L at adjacent two lightening hole centers is 58mm.
9. torsion beam suspension apparatus according to claim 2, is characterized in that, the cutting radian radius R that Symmetrical Circular Arc cutting is carried out in the arc bottom side of described torsion beam is 10m.
10. torsion beam suspension apparatus according to claim 3, it is characterized in that, in the V font of described torsion beam or U font inner space, stabilizer rod is installed, the two ends of described stabilizer rod are fixedly connected on respectively on the trailing arm at torsion beam two ends or are fixedly connected on the set auxiliary stand in torsion beam two ends.
11. 1 kinds of automobiles, is characterized in that, described automobile is provided with if claim 1 is to the torsion beam suspension apparatus as described in one or more in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322801.0A CN103660840A (en) | 2012-09-04 | 2012-09-04 | Torsion beam suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322801.0A CN103660840A (en) | 2012-09-04 | 2012-09-04 | Torsion beam suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103660840A true CN103660840A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210322801.0A Pending CN103660840A (en) | 2012-09-04 | 2012-09-04 | Torsion beam suspension device |
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| Country | Link |
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| CN (1) | CN103660840A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260614A (en) * | 2014-09-16 | 2015-01-07 | 奇瑞汽车股份有限公司 | Torsion beam structure |
| JP2016159770A (en) * | 2015-03-02 | 2016-09-05 | スズキ株式会社 | Torsion beam type suspension |
| CN107764152A (en) * | 2017-11-08 | 2018-03-06 | 浙江德昱汽车零部件有限公司 | Torsion beam assembly connecting hole testing agency |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813691A (en) * | 1995-03-24 | 1998-09-29 | Toyota Jidosha Kabushiki Kaisha | Twist beam type suspension having a rigid twist beam |
| CN1348881A (en) * | 2000-10-16 | 2002-05-15 | 三菱自动车工业株式会社 | Rear suspension |
| WO2006030921A1 (en) * | 2004-09-13 | 2006-03-23 | Toyota Jidosha Kabushiki Kaisha | Torsion-beam-type suspension apparatus |
| CN101314313A (en) * | 2008-07-07 | 2008-12-03 | 奇瑞汽车股份有限公司 | Torsion girder type hind axle |
| CN202115308U (en) * | 2011-06-22 | 2012-01-18 | 东风汽车公司 | Connection structure of rear stabilizer bar for automobile |
| US20120211961A1 (en) * | 2009-10-30 | 2012-08-23 | Magna International Inc. | Torsion Beam Of Twist Axle |
-
2012
- 2012-09-04 CN CN201210322801.0A patent/CN103660840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813691A (en) * | 1995-03-24 | 1998-09-29 | Toyota Jidosha Kabushiki Kaisha | Twist beam type suspension having a rigid twist beam |
| CN1348881A (en) * | 2000-10-16 | 2002-05-15 | 三菱自动车工业株式会社 | Rear suspension |
| WO2006030921A1 (en) * | 2004-09-13 | 2006-03-23 | Toyota Jidosha Kabushiki Kaisha | Torsion-beam-type suspension apparatus |
| CN101314313A (en) * | 2008-07-07 | 2008-12-03 | 奇瑞汽车股份有限公司 | Torsion girder type hind axle |
| US20120211961A1 (en) * | 2009-10-30 | 2012-08-23 | Magna International Inc. | Torsion Beam Of Twist Axle |
| CN202115308U (en) * | 2011-06-22 | 2012-01-18 | 东风汽车公司 | Connection structure of rear stabilizer bar for automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260614A (en) * | 2014-09-16 | 2015-01-07 | 奇瑞汽车股份有限公司 | Torsion beam structure |
| JP2016159770A (en) * | 2015-03-02 | 2016-09-05 | スズキ株式会社 | Torsion beam type suspension |
| CN105936200A (en) * | 2015-03-02 | 2016-09-14 | 铃木株式会社 | Torsion beam-type suspension |
| CN105936200B (en) * | 2015-03-02 | 2018-06-19 | 铃木株式会社 | Twist-beam suspension |
| CN107764152A (en) * | 2017-11-08 | 2018-03-06 | 浙江德昱汽车零部件有限公司 | Torsion beam assembly connecting hole testing agency |
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Application publication date: 20140326 |