CN205033896U - Suspension system behind car and swing arm down thereof - Google Patents
Suspension system behind car and swing arm down thereof Download PDFInfo
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- CN205033896U CN205033896U CN201520805424.5U CN201520805424U CN205033896U CN 205033896 U CN205033896 U CN 205033896U CN 201520805424 U CN201520805424 U CN 201520805424U CN 205033896 U CN205033896 U CN 205033896U
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Abstract
The utility model provides a suspension system behind car and swing arm down thereof, lower swing arm includes first link for with the rear wheel leg joint, still include the second link, the second link lies in same one side with first link, and follows the fore -and -aft direction interval arrangement with first link, along the direction from first link to second link, the second link has side by side and the interval sets up first connection piece, second connection piece to and third connection piece, form first mounted position between first connection piece and the second connection piece, form the second mounted position between second connection piece and the third connection piece. Form a mounted position between two adjacent connection pieces respectively, each mounted position all can be used for installing a suspension part, connection piece of two mounted position sharings for the simple structure of second link, the manufacturing process degree of difficulty is low.
Description
Technical field
The utility model relates to field of automobile suspension, is specifically related to a kind of automobile rear suspension system and lower swing arm thereof.
Background technology
Lower swing arm is the vitals of automobile rear suspension system, for connecting Rear secondary frame for vehicle and rear wheel support.In the rear-suspension system of middle and high end car, lower swing arm is also generally used for the installation site providing multiple suspension part.
But in general, installation site is more, the structure of lower swing arm is more complicated.Further, installation site is more, and correspondingly, the quantity being installed on the part of lower swing arm also will increase, and causing the increasing number of the fastener of lower swing arm for connecting and part, causing the less economical of whole suspension system.
Utility model content
The problem that the utility model solves is the existing complex structure of the lower swing arm of multiple installation site, less economical of can providing.
For solving the problem, the utility model provides a kind of lower swing arm for rear overhang rack, comprises the first coupling end, for being connected with rear wheel support; Also comprise the second coupling end, described second coupling end and described first coupling end are positioned at the same side, and and described first coupling end arrange at interval along the longitudinal direction; Edge is from described first coupling end to the direction of described second coupling end, and described second coupling end has side by side and spaced first connecting strap, the second connecting strap, and the 3rd connecting strap; Form the first installation site between described first connecting strap and described second connecting strap, between described second connecting strap and described 3rd connecting strap, form the second installation site.
Optionally, each connecting strap has the joint face towards adjacent tabs respectively, and described first connecting strap, the second connecting strap, the 3rd connecting strap are respectively equipped with the first through hole coaxially to each other respectively in joint face.
Optionally, along the axis of described first through hole, the thickness of described second connecting strap is greater than the thickness of described first connecting strap, described 3rd connecting strap.
Optionally, described first installation site is for connecting rear shock absorber, and described second installation site is used for butt coupling connecting rod.
Optionally, edge is from described second coupling end to the direction of described first coupling end, and described first coupling end comprises the 4th connecting strap, the 5th connecting strap; The 3rd installation site is formed between described 4th connecting strap, the 5th connecting strap; Described 3rd installation site is for connecting rear wheel support.
Optionally, the side of described 5th connecting strap described 4th connecting strap dorsad has the joint face of formation the 4th installation site.
Optionally, described 4th connecting strap, the 5th connecting strap have towards joint face each other respectively, and described 5th connecting strap also has the joint face of described 4th connecting strap dorsad; The joint face of described 4th connecting strap, the 5th connecting strap is provided with the second through hole coaxially to each other.
Optionally, along the axis of described second through hole, the thickness of described 5th connecting strap is greater than the thickness of described 4th connecting strap.
Optionally, all installation sites through-thickness is through.
Optionally, also comprising the 3rd coupling end, being positioned at the side opposing with described first coupling end, the second coupling end, for being connected with Rear secondary frame for vehicle.
Optionally, along described fore-and-aft direction, described 3rd coupling end has the first point of connection being positioned at same one end with described first coupling end, and is positioned at second point of connection of same one end with described second coupling end; Line between described first point of connection, described second point of connection and automobile longitudinal have the angle of 5 degree to 20 degree; Along in automobile short transverse, described second point of connection is higher than described first point of connection.
Optionally, the center shaft of described first point of connection, described second point of connection is overlapping.
Optionally, the line between described first point of connection, described second point of connection and automobile longitudinal have the angle of 10 degree to 15 degree.
Optionally, the mid point of the mid point of described first coupling end and described second coupling end line, described first point of connection and described second point of connection line, has the angle being not more than 10 degree between the line of two mid points and vehicle transverse direction.
Optionally, the line between described second coupling end, described second point of connection and automobile laterally between there is the angle being not more than 15 degree.
Optionally, the line between described second coupling end, described second point of connection and automobile laterally between there is the angle being not more than 10 degree.
Optionally, also comprise the 4th coupling end, between described first coupling end and described first point of connection, for connecting rear spring.
The utility model also provides a kind of automobile rear suspension system, its lower swing arm described in above-mentioned any one.
Compared with prior art, the technical solution of the utility model has the following advantages:
Lower swing arm is also provided with the second coupling end in the side of the first coupling end for being connected with rear wheel support, second coupling end comprises the first connecting strap, the second connecting strap, the 3rd connecting strap, an installation site is formed respectively between adjacent two connecting straps, each installation site all may be used for installation suspension part, two installation sites share a connecting strap, make the structure of the second coupling end simple, manufacturing process difficulty is low.
Further, for any one in the first coupling end, the second coupling end, wherein each connecting strap has respectively towards joint face each other, and is provided with through hole coaxially to each other in each joint face.During installation, the through hole of each joint face and part to be installed can be passed by a binding bolt, realize being fastenedly connected of part to be installed.Thus, the quantity of fastener can be greatly reduced, improve economy.
Accompanying drawing explanation
Fig. 1 shows the perspective view of the lower swing arm of the utility model embodiment from an angle;
Fig. 2 shows the perspective view of the lower swing arm of the utility model embodiment from another angle.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail specific embodiment of the utility model below in conjunction with accompanying drawing.
With reference to shown in Fig. 1, Fig. 2, the present embodiment provides a kind of lower swing arm for rear overhang rack, has body 1 and the first coupling end 10 for being connected with rear wheel support.
In the present embodiment, lower swing arm also comprises the same side that the second coupling end 20, second coupling end 20 and the first coupling end 10 are positioned at lower swing arm, and and the first coupling end 10 arrange at interval along the longitudinal direction.Wherein, when lower swing arm is installed on automobile, the front portion of automobile is pointed in front end, and the rear portion of automobile is pointed in rear end.
Along the direction from the first coupling end 10 to the second coupling end 20, second coupling end 20 has side by side and spaced first connecting strap 21, second connecting strap 22, and the 3rd connecting strap 23, form the first installation site A between first connecting strap 21 and the second connecting strap 22, between the second connecting strap 22 and the 3rd connecting strap 23, form the second installation site B.
Wherein, each installation site all may be used for installation suspension part, and due to shared second connecting strap 22 of the first installation site A, the second installation site B, make the structure of the second coupling end 20 simple, manufacturing process difficulty is low.
The suspension part be installed in the first installation site A, the second installation site B can be chosen according to the structure of suspension.In the present embodiment, the first installation site A is for connecting rear shock absorber, and the second installation site B is used for butt coupling connecting rod.
Further, each connecting strap has the joint face towards adjacent tabs respectively, is respectively equipped with the first through hole aa coaxially to each other in the joint face of the first connecting strap 21, second connecting strap 22, the 3rd connecting strap 23.The connecting strap at the through place of each first through hole aa.
Particularly, the first connecting strap 21 has the first joint face 20a (Fig. 2) towards the second connecting strap 22; Second connecting strap 22 has the second joint face 20b (Fig. 1) towards the first connecting strap 21, and towards the 3rd joint face 20c (Fig. 2) of the 3rd connecting strap 23; 3rd joint face 23 has the 4th joint face 20d (Fig. 1) towards the second connecting strap 22.
Wherein, each joint face needs to fit with the fitting surface of corresponding suspension part, and to realize being connected, therefore, the angle of inclination of each joint face is arranged according to the angle of inclination of the fitting surface of corresponding suspension part.In the present embodiment, each joint face of the second coupling end 20 is parallel to each other, or each connecting strap of the second coupling end 20 is parallel to each other.
Each joint face is provided with the first through hole aa, and the first through hole aa runs through the connecting strap at place vertically.During installation, the first installation site A is inserted at position to be connected for the connecting bushing of rear shock absorber, the connecting bushing of coupled links is inserted the second installation site B.Then, penetrate the first through hole aa of the 3rd connecting strap 23 from the direction of the 3rd connecting strap 23 with a binding bolt, and successively through the first through hole aa of the 3rd connecting strap 23, the connecting bushing of coupled links, the first through hole aa of the second connecting strap 22, the connecting bushing of rear shock absorber and the first connecting strap 21.Binding bolt is fixed by nut after passing the first through hole aa of the first connecting strap 21.
As can be seen here, during installation, the second coupling end 20 only needs just can realize treating being fastenedly connected of multiple mounting parts by a binding bolt, greatly reduces the quantity of fastener, improves economy.
First connecting strap 21, second connecting strap 22, the 3rd connecting strap 23, along the thickness of the first through hole aa axis, are arranged according to respective requirement of strength, and it can be identical or not identical.Wherein, because the second connecting strap 22 is simultaneously for connecting two suspension parts, require higher to its support strength, therefore, the present embodiment is arranged: along the axis of the first through hole aa, the thickness of the second connecting strap 22 is greater than the thickness of the first connecting strap 21, the 3rd connecting strap 23.
Further, continue with reference to shown in Fig. 1, Fig. 2, along the direction from the second coupling end 20 to the first coupling end 10, the first coupling end 10 comprises the 4th connecting strap 11, the 5th connecting strap 12.Form the 3rd installation site C between 4th connecting strap 11, the 5th connecting strap 12, the 3rd installation site C is for connecting rear wheel support.
5th connecting strap 12 dorsad the 4th connecting strap 11 side formed the 4th installation site D.For connecting rear stabilizer bar.
Visible, the 3rd installation site C and the 4th installation site D shares the 5th connecting strap 12, makes the structure of the first coupling end 10 simple, reduces manufacturing process difficulty.
Further, 4th connecting strap 11, the 5th connecting strap 12 have towards joint face each other respectively, wherein, 4th connecting strap 11 is called the 5th joint face 10e (Fig. 1) towards the joint face of the 5th connecting strap 12, and the 5th connecting strap 12 is called the 6th joint face 10f towards the joint face of the 4th connecting strap 11.5th joint face 10e, the 6th joint face 10f are used for being connected with rear wheel support.
5th connecting strap 12 also has the joint face of the 4th connecting strap 11 dorsad, is called the 7th joint face 10g (Fig. 1).The suspension part be installed in the 4th installation site D can be chosen according to the structure of suspension, and in the present embodiment, the 7th joint face 10g is used for being connected with rear stabilizer bar.Or rather, the 7th joint face 10g is used for being connected with the small rod of rear stabilizer bar.
Wherein, each joint face needs to fit with the fitting surface of corresponding suspension part, and to realize being connected, therefore, the angle of inclination of each joint face is arranged according to the angle of inclination of the fitting surface of corresponding suspension part.In the present embodiment, each joint face of the first coupling end 10 is parallel to each other.Further, be also parallel to each other with each joint face of the second coupling end 20.
Like this, after each connecting strap has been cast, can on same a machine tool, adopt same process for machining to form each joint face, enormously simplify manufacturing procedure.
The joint face of the 4th connecting strap 11, the 5th connecting strap 12 is provided with the second through hole bb (Fig. 2) coaxially to each other.That is, the 4th connecting strap 11, the 5th connecting strap 12 are all provided with the second through hole bb.
During installation, the connecting portion of rear wheel support is inserted the 3rd installation site C, then insert from the 4th connecting strap 11 with a binding bolt, and successively by the second through hole bb, the connecting portion of rear wheel support, the second through hole bb of the 5th connecting strap 12 of the 4th connecting strap 11, and the connecting portion of rear stabilizer bar.Finally, binding bolt passes the connecting portion of rear stabilizer bar, and is fixed by nut.
4th connecting strap 11, the 5th connecting strap 12, along the thickness of the second through hole bb axis, are arranged according to respective requirement of strength, and it can be identical or not identical.Wherein, because the 5th connecting strap 12 is simultaneously for connecting two suspension parts, support strength requires higher, and therefore, the present embodiment is arranged: along the axis of the second through hole 10a, the thickness of the 5th connecting strap 12 is greater than the thickness of the 4th connecting strap 11.
It should be noted that any one installation site for the first coupling end 10, second coupling end 20, as long as the connecting portion of corresponding suspension part can be made to insert, its shape is not construed as limiting.In the present embodiment, all installation sites in the first coupling end 10, second coupling end 20 are through along the thickness direction of body 1.
Further, lower swing arm also comprises the 3rd coupling end 30, is positioned at the side opposing with the first coupling end 10, second coupling end 20, for being connected with Rear secondary frame for vehicle.Wherein, in the 3rd coupling end 30, the number of point of connection is arranged according to actual connection request, can be one or more.In the present embodiment, along the longitudinal direction, 3rd coupling end 30 has the first point of connection 31 being positioned at same one end with the first coupling end 10, and is respectively used to be connected with Rear secondary frame for vehicle with the second point of connection 32, first point of connection 31, second point of connection 32 that the second coupling end 20 is positioned at same one end.
Because the first coupling end 10, second coupling end 20 is arranged along the fore-and-aft direction of automobile, the first point of connection 31, second point of connection 32 is also arranged along the fore-and-aft direction of automobile.That is, when being mounted on automobile rear suspension system, in the first coupling end 10, second coupling end 20 one is positioned at front end, another is positioned at rear end; In first point of connection 31, second point of connection 32 one is positioned at front end, another is positioned at rear end.
Thus, the first coupling end 10, second coupling end 20, and these four drift angles respectively at lower swing arm of two point of connection 31,32 of the 3rd coupling end 30, lower swing arm is formed structure that one is similar to H type.
Further, lower swing arm also comprises the 4th coupling end 40, between the first coupling end 10 and the 3rd coupling end 30, for connecting rear spring.When being installed on automobile, the 4th coupling end 40 and the first coupling end 10 are positioned at same one end.
In addition, in order to reach weight-saving object, the lower swing arm of the present embodiment adopts aluminium, and be called hollow cavity structure by gravitational casting, that is, the body 1 of lower swing arm is hollow cavity structure.The strength and stiffness of lower swing arm can be ensured like this at weight-saving simultaneously.
To sum up, the lower swing arm of the present embodiment is except for except Rear secondary frame for vehicle, rear wheel support provide installation site, can providing installation site for rear shock absorber, coupled links, rear stabilizer bar and rear spring.Wherein, due to the slice structure that the first coupling end, the second coupling end adopt multiple connecting strap to form, simple for structure, regular.Further, the first coupling end, the second coupling end only need a binding bolt just can be fixed on lower swing arm by two suspension parts respectively, and fastener quantity is few, good economy performance.
Further, in the present embodiment, when lower swing arm is mounted on automobile rear suspension system, the second coupling end 20, second point of connection 32 is positioned at the front end of lower swing arm, and wherein the second coupling end 20 is near wheel stand, and the second point of connection 32 is near subframe; First coupling end 10 and the first point of connection 31 are positioned at the rear end of lower swing arm, and wherein the first coupling end 10 is near wheel stand, and the first point of connection 31 is near subframe.First coupling end 10, second coupling end 20 is connected with wheel stand, and the first point of connection 31, second point of connection 32 is connected with subframe.
Wherein, the second coupling end 20 directly can be connected with wheel stand, also can be connected with wheel stand by miscellaneous part such as support; First point of connection 31, second point of connection 32 can directly directly be connected with subframe, also can be connected with subframe by miscellaneous part such as support.In the present embodiment, the second coupling end 20 is connected with wheel stand by vertical arm (not shown), but not is directly connected with wheel stand.
Particularly, first point of connection 31, second point of connection 32 of lower swing arm can be connected with subframe by rubber bush, first coupling end 10 can be connected with wheel stand by ball pivot or rubber bush, and the second coupling end 20 can be connected with vertical arm by rubber bush or ball pivot.
In the present embodiment, each coupling end is connected with corresponding component by rubber bush.Because rubber bush has certain flexibility, therefore in automobile sport process, by rubber bush plastic deformation, the motion between each coupling end and corresponding component can be coordinated mutually.
In addition, due to rubber bush and have certain flexibility, therefore, when automobile is subject to longitudinal force, rubber bush can have buffer action to longitudinal force, thus guarantees that the suspension of the present embodiment has good longitudinal buffer characteristic.
When being mounted on automobile rear suspension system, lower swing arm provides lateral support and longitudinal ligament simultaneously, but also is used for controlling the angle of toein of wheel and outer dip angle change.In the present embodiment, lower swing arm has four attachment points, and the first namely above-mentioned coupling end, the second coupling end and the first point of connection, the second point of connection can better realize lateral support and longitudinal ligament like this.
Concrete, the arrangement form of the first coupling end of lower swing arm, the second coupling end and the first point of connection, the second point of connection is:
Line between first point of connection 31, second point of connection 32 and automobile longitudinal have the angle (comprising 5 degree, 20 degree) of 5 degree to 20 degree, better can select in 10 degree to 15 degree (comprising 10 degree, 15 degree) angular range, wherein, in automobile short transverse, the second point of connection 32 is higher than the first point of connection 31.
The mid point of the mid point of the first coupling end 10 and the second coupling end 20 line, the first point of connection 31 and the second point of connection 32 line, has the angle being not more than 10 degree between the line of two mid points and vehicle transverse direction; This arrangement form coordinates the angle between top link and vehicle transverse direction to arrange, such as, angle between top link and automobile transverse direction is not more than 10 degree (being such as more than or equal to 5 degree), then can meet the requirement of back axle height of roll center in the scope of 100mm ~ 200mm of automobile.
Line between first point of connection 31 and the first coupling end 10 and automobile laterally between there is the angle being not more than 15, better can select the angle being not more than 10 degree; Line between second point of connection 32, first point of connection 31 and automobile longitudinal have the angle (comprising 5 degree, 20 degree) of 5 degree to 20 degree, better can select in 10 degree to 15 degree (comprising 10 degree, 15 degree) angular range, wherein, in automobile short transverse, the second point of connection 32 is higher than the first point of connection 31; This arrangement form, be conducive to improving back axle and make a concession characteristic, the anti-of back axle is squatted and anti-lift characteristics.
Wherein, the center shaft of the first point of connection 31, second point of connection 32 is overlapping, and that is, the first point of connection 31, second point of connection 32 is coaxial.Like this, when wheel bounce causes lower swing arm to swing up and down, can prevent the Rubber Parts of the lining being arranged in the first point of connection 31, second point of connection 32 from deflecting, avoid the damage of Rubber Parts.If the performance of Rubber Parts can resist deflection, so, the first point of connection 31, second point of connection 32 also can disalignment.
The present embodiment also provides a kind of automobile rear suspension system, and it comprises the lower swing arm of above-mentioned any one.
Although the utility model discloses as above, the utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (18)
1. for a lower swing arm for rear overhang rack, comprise the first coupling end, for being connected with rear wheel support;
It is characterized in that, also comprise the second coupling end, described second coupling end and described first coupling end are positioned at the same side, and and described first coupling end arrange at interval along the longitudinal direction;
Edge is from described first coupling end to the direction of described second coupling end, and described second coupling end has side by side and spaced first connecting strap, the second connecting strap, and the 3rd connecting strap;
Form the first installation site between described first connecting strap and described second connecting strap, between described second connecting strap and described 3rd connecting strap, form the second installation site.
2. lower swing arm as claimed in claim 1, it is characterized in that, each connecting strap has the joint face towards adjacent tabs respectively, and described first connecting strap, the second connecting strap, the 3rd connecting strap are respectively equipped with the first through hole coaxially to each other respectively in joint face.
3. lower swing arm as claimed in claim 2, it is characterized in that, along the axis of described first through hole, the thickness of described second connecting strap is greater than the thickness of described first connecting strap, described 3rd connecting strap.
4. lower swing arm as claimed in claim 2, is characterized in that, described first installation site is for connecting rear shock absorber, and described second installation site is used for butt coupling connecting rod.
5. lower swing arm as claimed in claim 1, is characterized in that, edge is from described second coupling end to the direction of described first coupling end, and described first coupling end comprises the 4th connecting strap, the 5th connecting strap;
The 3rd installation site is formed between described 4th connecting strap, the 5th connecting strap;
Described 3rd installation site is for connecting rear wheel support.
6. lower swing arm as claimed in claim 5, is characterized in that, the side of described 5th connecting strap described 4th connecting strap dorsad has the joint face of formation the 4th installation site, and described 4th installation site is for connecting rear stabilizer bar small rod.
7. lower swing arm as claimed in claim 6, it is characterized in that, described 4th connecting strap, the 5th connecting strap have towards joint face each other respectively, and described 5th connecting strap also has the joint face of described 4th connecting strap dorsad;
The joint face of described 4th connecting strap, the 5th connecting strap is provided with the second through hole coaxially to each other.
8. lower swing arm as claimed in claim 7, it is characterized in that, along the axis of described second through hole, the thickness of described 5th connecting strap is greater than the thickness of described 4th connecting strap.
9. the lower swing arm according to any one of claim 1-8, is characterized in that, all installation sites through-thickness is through.
10. lower swing arm as claimed in claim 1, is characterized in that, also comprise the 3rd coupling end, is positioned at the side opposing with described first coupling end, the second coupling end, for being connected with Rear secondary frame for vehicle.
11. lower swing arms as claimed in claim 10, is characterized in that, along described fore-and-aft direction, described 3rd coupling end has the first point of connection being positioned at same one end with described first coupling end, and is positioned at second point of connection of same one end with described second coupling end;
Line between described first point of connection, described second point of connection and automobile longitudinal have the angle of 5 degree to 20 degree, and along in automobile short transverse, described second point of connection is higher than described first point of connection.
12. lower swing arms as claimed in claim 11, is characterized in that, the center shaft of described first point of connection, described second point of connection is overlapping.
13. lower swing arms as claimed in claim 11, is characterized in that, the line between described first point of connection, described second point of connection and automobile longitudinal have the angle of 10 degree to 15 degree.
14. lower swing arms as claimed in claim 11, it is characterized in that, the mid point of the mid point of described first coupling end and described second coupling end line, described first point of connection and described second point of connection line, has the angle being not more than 10 degree between the line of two mid points and vehicle transverse direction.
15. lower swing arms as claimed in claim 11, is characterized in that, the line between described second coupling end, described second point of connection and automobile laterally between there is the angle being not more than 15 degree.
16. lower swing arms as claimed in claim 11, is characterized in that, the line between described second coupling end, described second point of connection and automobile laterally between there is the angle being not more than 10 degree.
17. lower swing arms as claimed in claim 11, is characterized in that, also comprise the 4th coupling end, between described first coupling end and described first point of connection, for connecting rear spring.
18. 1 kinds of automobile rear suspension systems, is characterized in that, comprise the lower swing arm according to any one of claim 1-17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805424.5U CN205033896U (en) | 2015-10-16 | 2015-10-16 | Suspension system behind car and swing arm down thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805424.5U CN205033896U (en) | 2015-10-16 | 2015-10-16 | Suspension system behind car and swing arm down thereof |
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| CN205033896U true CN205033896U (en) | 2016-02-17 |
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| CN201520805424.5U Active CN205033896U (en) | 2015-10-16 | 2015-10-16 | Suspension system behind car and swing arm down thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263156A (en) * | 2018-03-02 | 2018-07-10 | 北京汽车研究总院有限公司 | The suspension swing arm component of vehicle and with its vehicle |
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2015
- 2015-10-16 CN CN201520805424.5U patent/CN205033896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263156A (en) * | 2018-03-02 | 2018-07-10 | 北京汽车研究总院有限公司 | The suspension swing arm component of vehicle and with its vehicle |
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