CN101130334A - Wrest bar type suspension frame - Google Patents
Wrest bar type suspension frame Download PDFInfo
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- CN101130334A CN101130334A CNA2007101227582A CN200710122758A CN101130334A CN 101130334 A CN101130334 A CN 101130334A CN A2007101227582 A CNA2007101227582 A CN A2007101227582A CN 200710122758 A CN200710122758 A CN 200710122758A CN 101130334 A CN101130334 A CN 101130334A
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- vehicle
- type suspension
- trailing arm
- beam type
- torsional
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Abstract
The invention discloses a torsional-beam suspension for vehicle. The torsional-beam suspension comprises torsional-beam body extruding in level in the horizontal direction of vehicle and a pair of vertical arms extruding in the vertical direction of vehicle and fixed with two ends of said torsional-beam body. The front end of said vertical arm is supported and hinged by vehicle body in combined shaft. The back end of said vertical arm is supported and hinged by vehicle body in hub support. Helix spring seat and support part of back absorber are fixed on said vertical arm. Said helix spring seat is separated with the torsional-beam body. When left and ring tires of vehicle jump without balance in driving, although the torsional-beam twists continuously and generates related movement with vertical arms and helix spring seat, the helix spring seat can not bear torque of torsional-beam body and the connecting position of them can be not fractured easily because the helix spring seat is separated with the torsional-beam body. Reliability of torsional-beam suspension can be improved obviously.
Description
Technical field
The present invention relates to a kind of suspension frame structure of vehicle, particularly a kind of twist beam type suspension.
Background technology
Usually, because the undesirable or other reasons of condition of road surface, the left and right side tire of vehicles such as automobile is understood bob lopsidedly in driving process, makes vehicle body produce vibrations thus.In addition, can produce an inclination entad usually at the Ackermann steer angle vehicle body.This vibrations and inclination have damaged the traveling comfort and the stability of vehicle.
Publication number is the disclosed a kind of trailing arm type torsion beam suspension of the application for a patent for invention specification sheets of CN 1246246A, can alleviate the harm that above-mentioned vibrations and inclination bring to a certain extent.Please refer to Fig. 1 and Fig. 2.Fig. 1 is the planar view of the twist beam type suspension of prior art, and Fig. 2 is the back view of twist beam type suspension shown in Figure 1.The torsion beam suspension of above-mentioned prior art has symmetrical structure, therefore only describes its left-half below in detail.The left-half of above-mentioned torsion beam suspension is included in the vertical upwardly extending trailing arm 11 of vehicle and at the torsion beam body 17 that transversely extends of vehicle, by the hinged support of the vehicle body of described vehicle, support by the wheel of wheel hub holder 12 by described vehicle by the rear end of described trailing arm 11 by described built-up shaft 16 for the front end of described trailing arm 11.Fixedly mount spiral spring bearing 13 and bumper supporting pin 14 on the described trailing arm 11 respectively.Described spiral spring bearing 13 supports the vehicle body of described vehicle by spring.Described bumper supporting pin 14 supports the lower end of the bumper (not shown) of described vehicle.Between two trailing arms 11 that are provided with about described torsion beam body 17 two ends are fixed on.
In the process of vehicle ', when left and right sides tire is beated up and down lopsidedly, about 12 pairs two trailing arms of two wheel hub holders 11 produced unbalanced impulsive force about wheel passed through, and left and right two trailing arms 11 rotate around built-up shaft 16 cooresponding with it respectively, but the direction of rotating is opposite.Trailing arm 11 produces torsional deflection with torsion beam body 17, and buffering passes to the impulsive force of vehicle body, and the vibrations that decay and cause thus, traveling comfort in the time of so just can improving vehicle ' and road-holding property.
But still there are some problems in the torsion beam suspension of above-mentioned prior art.Because spiral spring bearing 13 has direct rigidly connected part with torsion beam body 17, constantly twisting and spiral spring bearing 13 are subjected in the process of antagonistic force of spiral spring all the time at torsion beam body 17, torsion beam body 17 both ends produce relative motion with respect to spiral spring bearing 13, produced the stress that bigger direction constantly changes in the described portion of being rigidly connected, cause the described portion of being rigidly connected to be easy to fracture, reduced the reliability of twist beam type suspension.
Summary of the invention
At above-mentioned defective, the technical matters that the present invention solves is to provide a kind of more suspension frame structure that is used for vehicle of high reliability that has, and a kind of twist beam type suspension with better reliability particularly is provided.
Twist beam type suspension provided by the invention, be included in vehicle the torsion beam body that transversely extends, a pair of vehicle vertically on the trailing arm that extends and captive joint with the two ends of described torsion beam body respectively, the front end of described trailing arm by built-up shaft by the hinged support of the vehicle body of described vehicle, the rear end of described trailing arm is supported by the wheel of wheel hub holder by described vehicle, captive joint spiral spring bearing and rear shock absorber support component on the described trailing arm, described spiral spring bearing and torsion beam body are provided with separately.
Preferably, described rear shock absorber support component is captiveed joint with described trailing arm, described spiral spring bearing simultaneously.
Preferably, described rear shock absorber support component is a stay bearing plate.
Preferably, the front end of described trailing arm bends towards the outside of vehicle, the scope of the central axis angle of left and right two built-up shafts of described twist beam type suspension be 126 spend to 135 the degree.
Preferably, the central axis angle of left and right two built-up shafts of described twist beam type suspension is 131 degree.
Twist beam type suspension provided by the invention compared with prior art, spiral spring bearing and torsion beam body are separated.Like this, vehicle in driving process, though left and right sides tire constantly beat lopsidedly, the torsion beam body constantly twist and with trailing arm and spiral spring bearing movable property looks to motion.But since spiral spring bearing not with torsion beam body direct connection, spiral spring bearing can not bear the torsion of torsion beam body, both connecting portions are easy fracture not just, the reliability of twist beam type suspension is significantly improved.
Description of drawings
Fig. 1 is the planar view of the twist beam type suspension of prior art;
Fig. 2 is the back view of twist beam type suspension shown in Figure 1;
Fig. 3 is the planar view of first kind of twist beam type suspension of the described twist beam type suspension of the embodiment of the invention;
Fig. 4 is the back view of twist beam type suspension shown in Figure 3;
Fig. 5 is the planar view of second kind of twist beam type suspension of the described twist beam type suspension of the embodiment of the invention;
Fig. 6 is the back view of twist beam type suspension shown in Figure 5;
Fig. 7 is the planar view of the third twist beam type suspension of the described twist beam type suspension of the embodiment of the invention.
The specific embodiment
Core of the present invention provides a kind of more twist beam type suspension that is used for vehicle of high reliability that has.
In order to make those skilled in the art person understand the solution of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3 and Fig. 4.Fig. 3 is the planar view of first kind of specific embodiment of the described twist beam type suspension of the embodiment of the invention, and Fig. 4 is the back view of twist beam type suspension shown in Figure 3.
Therefore the twist beam type suspension of present embodiment has left and right symmetrical structure, only describes its left-half in detail below.
The twist beam type suspension of present embodiment comprises torsion beam body 27 and a pair of trailing arm 21.Torsion beam body 27 is at the transversely horizontal-extending of vehicle, trailing arm 21 vehicle vertically on horizontal-extending.Trailing arm 21 can be made by steel tubing, and is fixedly connected by welding at the two ends of torsion beam body 27.Trailing arm 21 has front-end and back-end.The front end captive joint built-up shaft 26 of trailing arm 21, and by built-up shaft 26 and vehicle body hinged and and then support by vehicle body; The rear end captive joint of trailing arm 21 is as the wheel hub holder 22 of wheel carrier, and wheel hub holder 22 can be around its center shaft rotation, and wheel is installed on the wheel hub holder 22 and supports the rear end of trailing arm 21 by wheel hub holder 22.Captive joint spiral spring bearing 23 on the trailing arm 21, both adopt the mode captive joint of welding usually.Spiral spring bearing 23 is supporting an end of spring (not shown), and the other end of spring supports vehicle body.Though spiral spring bearing 23 is all captiveed joint with trailing arm 21 with torsion beam body 27, both are provided with in the mode that is separated from each other.Also be fixedly connected with bumper support component (not shown among Fig. 3 and Fig. 4) on the trailing arm 21, bumper (not shown) lower end is supported on the bumper support component, and the upper end of bumper is hinged on the vehicle body.
When left and right tire was beated in the vehicle driving process, traffic blows power passed to trailing arm 21 by wheel hub holder 22.Because spring and bumper can produce elastic deformation when being subjected to impacting, absorbed the part vibration energy, the vibrations that vehicle body is subjected to are alleviated.Vehicle runs into left and right tire unbanlence ground in the process of moving when beating, left and right two trailing arms 21 are respectively around built-up shaft 26 backwards rotation cooresponding with it, the rear end of left and right then two trailing arms 21 is in different height, and therefore torsion beam body 27 produces the elasticity twisting.Torsion beam body 27 with strong rigidity flexibly twists, and has produced to make left and right wheels recover the elastic force of normal equilibrium position; The deformation of spring and bumper has simultaneously absorbed the part vibration energy.So just make wheel jump difference and reduce traveling comfort and stability when improving vehicle '.
The vehicle that has adopted the twist beam type suspension that the above-mentioned specific embodiment provides is when left and right tire is constantly beated lopsidedly, torsion beam body 27 elasticity twisting constantly, left and right trailing arm 21 and torsion beam body 27 no longer are in the same plane, and torsion beam body 27 produces relative motion with the spiral spring bearing 23 that is fixedly mounted on the trailing arm 21.But because spiral spring bearing 23 is provided with in the mode that is separated from each other with torsion beam body 27, directly do not connect rigidly, spiral spring bearing 23 can not be subjected to the torsion of torsion beam body 27, so just eliminated the stress of both connecting portions, this connecting portion is easy fracture not, and the reliability of twist beam type suspension is significantly improved.
Please refer to Fig. 5 and Fig. 6.Fig. 5 is the planar view of second kind of specific embodiment of the described twist beam type suspension of the embodiment of the invention, and Fig. 6 is the back view of twist beam type suspension shown in Figure 5.
Second kind of specific embodiment of the present invention is the improvement of being made on the basis of first kind of specific embodiment of the invention described above.In first kind of specific embodiment of the present invention, bumper support component 24 is captiveed joint with trailing arm 21; Bumper support component 24 in second kind of specific embodiment of the present invention described here is further captiveed joint with spiral spring bearing 23.Bumper support component 24 adopts steel material usually, and bumper support component 24 specifically can be welding with the connection mode of trailing arm 21, spiral spring bearing 23.
The shape of bumper support component 24 specifically can be as shown in Figure 5 tabular.Be tabular bumper support component 24 and have two connecting portions 241 and 242, bumper support component 24 is fixing with trailing arm 21 welding by connecting portion 241, and bumper support component 24 is fixing with 23 welding of spiral spring bearing by connecting portion 242.
The shape of bumper support component 24 also can be that other are convenient to simultaneously the shape of captiveing joint with spiral spring bearing 23 with trailing arm 21.
Prior art adopts bumper supporting pin 14 as illustrated in figs. 1 and 2 to support bumper, and bumper connecting pin 14 is only captiveed joint with trailing arm 11.
Compared with prior art, bumper support component 24 has two connecting portions 241 and 242 of captiveing joint with trailing arm 21, spiral spring bearing 23 simultaneously in the present embodiment.Because manufacturing process is simple, cost is lower, the shape of bumper support component 24 specifically can be tabular.When spiral spring bearing 23 is subjected to the impulsive force of spring, above-mentioned two connecting portions 241 and 242 have disperseed above-mentioned impulsive force, pressure on each connecting portion all significantly reduces like this, thus the connecting portion 241 and 242 of bumper support component 24 and trailing arm 21, spiral spring bearing 23 easy fracture not.Thereby the reliability of twist beam type suspension is improved.
Please refer to Fig. 7.This figure is the planar view of the third specific embodiment of the described twist beam type suspension of the embodiment of the invention.
The third specific embodiment of the present invention is the improvement of being made on the basis of second kind of specific embodiment of the invention described above.In second kind of specific embodiment of the present invention, trailing arm 21 is substantially along the longitudinal extension of vehicle, and the central axis of left and right two built-up shafts 26 is horizontally disposed with and overlaps.In the third specific embodiment of the present invention described here, the front end of left and right trailing arm 21 is respectively to the outside curve of vehicle, and the central axis of left and right two built-up shafts 26 forms an angle theta.The scope of above-mentioned angle theta can be from 126 spend to 135 the degree unspecified angle.
The left and right trailing arm 21 of twist beam type suspension bends towards the outside of vehicle respectively in this specific embodiment, such structure will make described twist beam type suspension can bear bigger horizontal force, also improving of the inherent stressed relation of described twist beam type suspension, mode is improved, and has rigidity and intensity preferably.
The 4th kind of specific embodiment of the present invention is on the basis of the third specific embodiment of the invention described above, and the formed angle theta of the central axis of left and right two built-up shafts 26 further is made as 131 degree.Described angle theta further is made as 131 degree can improves the stressed relation of described twist beam type suspension inherence better, improving its mode to a greater extent, make it have better rigidity and intensity.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. twist beam type suspension, be included in vehicle the torsion beam body that transversely extends, a pair of vehicle vertically on the trailing arm that extends and captive joint with the two ends of described torsion beam body respectively, the front end of described trailing arm by built-up shaft by the hinged support of the vehicle body of described vehicle, the rear end of described trailing arm is supported by the wheel of wheel hub holder by described vehicle, captive joint spiral spring bearing and rear shock absorber support component on the described trailing arm, it is characterized in that described spiral spring bearing and torsion beam body are provided with separately.
2. twist beam type suspension as claimed in claim 1 is characterized in that, described rear shock absorber support component is captiveed joint with described trailing arm, described spiral spring bearing simultaneously.
3. twist beam type suspension as claimed in claim 2 is characterized in that, described rear shock absorber support component is a stay bearing plate.
4. twist beam type suspension as claimed in claim 1 is characterized in that, the front end of described trailing arm bends towards the outside of vehicle, the scope of the central axis angle of left and right two built-up shafts of described twist beam type suspension be 126 spend to 135 the degree.
5. twist beam type suspension as claimed in claim 4 is characterized in that, the central axis angle of left and right two built-up shafts of described twist beam type suspension is 131 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101227582A CN101130334A (en) | 2007-07-04 | 2007-07-04 | Wrest bar type suspension frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101227582A CN101130334A (en) | 2007-07-04 | 2007-07-04 | Wrest bar type suspension frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130334A true CN101130334A (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101227582A Pending CN101130334A (en) | 2007-07-04 | 2007-07-04 | Wrest bar type suspension frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101130334A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189281A (en) * | 2011-05-31 | 2011-09-21 | 长城汽车股份有限公司 | Method for processing automobile rear torsion beam on horizontal boring machine |
| CN104129245A (en) * | 2014-07-29 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Semi-bearing structure spring tray for torsion beam |
| CN104589942A (en) * | 2015-02-02 | 2015-05-06 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Torsion beam semi-independent suspension structure |
| PL423575A1 (en) * | 2017-11-24 | 2019-06-03 | Politechnika Koszalinska | Mechanism of a rockerless suspension and steering of the wheeled vehicles wheels |
-
2007
- 2007-07-04 CN CNA2007101227582A patent/CN101130334A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189281A (en) * | 2011-05-31 | 2011-09-21 | 长城汽车股份有限公司 | Method for processing automobile rear torsion beam on horizontal boring machine |
| CN102189281B (en) * | 2011-05-31 | 2013-02-13 | 长城汽车股份有限公司 | Method for processing automobile rear torsion beam on horizontal boring machine |
| CN104129245A (en) * | 2014-07-29 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Semi-bearing structure spring tray for torsion beam |
| CN104589942A (en) * | 2015-02-02 | 2015-05-06 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Torsion beam semi-independent suspension structure |
| PL423575A1 (en) * | 2017-11-24 | 2019-06-03 | Politechnika Koszalinska | Mechanism of a rockerless suspension and steering of the wheeled vehicles wheels |
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Open date: 20080227 |