CN109703308B

CN109703308B - Automobile and double-fork arm type rear suspension thereof

Info

Publication number: CN109703308B
Application number: CN201910133237.XA
Authority: CN
Inventors: 史玉红; 毕兰平
Original assignee: Zhejiang PanGood Power Technology Co Ltd
Current assignee: Zhejiang PanGood Power Technology Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2023-10-24
Anticipated expiration: 2039-02-22
Also published as: CN109703308A

Abstract

The invention provides an automobile and a double-fork arm type rear suspension thereof, which comprises a wheel bracket (1), two shock absorbers (2) arranged on the wheel bracket (1), and an upper fork arm (4) and a lower fork arm (5) hinged with the wheel bracket (1), wherein the wheel bracket (1) is provided with a through hole for a driving shaft (6) to pass through, the two shock absorbers (2) are symmetrically arranged on the front side and the rear side of a wheel axis, and the upper fork arm (4) and the lower fork arm (5) are arranged on the upper side and the lower side of the wheel axis and rotate in a vehicle body cross section relative to the wheel bracket (1). The double-fork arm type rear suspension provided by the invention can be applied to a rear-drive automobile, the arrangement of a driving shaft is not hindered, and the risk of fracture is reduced by improving the stress condition of a lower fork arm, so that the riding comfort of the automobile is improved.

Description

Automobile and double-fork arm type rear suspension thereof

Technical Field

The invention relates to the technical field of automobiles, in particular to an automobile and a double-fork arm type rear suspension thereof.

Background

The double-wishbone suspension is one of the most favorable suspension forms for improving the operation stability and smoothness of an automobile at present, in the existing double-wishbone suspension in a wishbone form, a shock absorber is usually arranged on a middle cross beam of an A-shaped lower wishbone, so that the lower wishbone bears additional bending moment from the shock absorber and is easy to break and fail, and the double-wishbone suspension with the structure cannot be applied to a drive axle due to the fact that the position of the shock absorber prevents the arrangement of a drive axle, so that the flexibility of the design of an automobile drive system is limited, and therefore, how to improve the double-wishbone suspension in the wishbone form so as to be applied to the drive axle and improve the stress condition of the lower wishbone becomes a technical problem to be urgently solved by the person in the art.

Disclosure of Invention

In view of the above, the present invention provides an automobile and a double-wishbone type rear suspension thereof, which can be applied to a rear-drive automobile without interfering with the arrangement of a drive shaft, and which can reduce the risk of breakage by improving the stress condition of a lower wishbone, thereby improving the riding comfort of the automobile.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a dual wishbone rear suspension for an automobile comprising:

a wheel bracket having a through hole through which the driving shaft passes;

two dampers mounted on the wheel carrier, the two dampers being symmetrically arranged on both front and rear sides of the wheel axis; and

and the upper fork arm and the lower fork arm are arranged on the upper side and the lower side of the wheel axis, and rotate in the cross section of the vehicle body relative to the wheel bracket.

Preferably, in the double-wishbone rear suspension, the lower end of the damper is hinged to the wheel carrier, the upper end is hinged to the vehicle body or the vehicle frame, and the damper rotates in the cross section of the vehicle body relative to the wheel carrier.

Preferably, in the double-fork arm type rear suspension, the wheel bracket comprises an upright annular middle body, the upper end and the lower end of the middle body are fixedly connected with first supports for mounting fork arms, and the first supports are horizontal cylinders.

Preferably, in the double-wishbone type rear suspension, two L-shaped brackets fixedly connected with the intermediate body are symmetrically arranged at positions which are different from the first bracket by 90 ° in the circumferential direction of the intermediate body, the long edges of the brackets longitudinally extend along the vehicle body, the short edges face the inner side of the vehicle body, the tail ends of the short edges of the brackets are provided with second brackets for mounting the shock absorber, and the second brackets are of fork-shaped structures.

Preferably, in the double-fork arm type rear suspension, a coil spring is sleeved on the shock absorber.

Preferably, in the double-fork arm type rear suspension, the upper fork arm and/or the lower fork arm is a-shaped.

An automobile comprising a double-wishbone rear suspension, the double-wishbone rear suspension being as disclosed in any one of the preceding claims.

According to the technical scheme, the two vibration absorbers are arranged on the wheel bracket and symmetrically arranged on the front side and the rear side of the wheel axis, so that the lower fork arm is prevented from bearing additional bending moment from the vibration absorbers, the mounting position of the driving shaft is avoided, and in addition, the two vibration absorbers form a certain span in the longitudinal direction of the vehicle body, so that the comfort can be effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a double-wishbone rear suspension of an automobile according to an embodiment of the present invention;

FIG. 2 is a perspective view of another view of a dual wishbone rear suspension according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the member 1 of fig. 1;

fig. 4 is a schematic diagram of an arrangement relationship between a double-wishbone rear suspension and a driving shaft according to an embodiment of the present invention.

Marked in the figure as:

1. a wheel carrier; 11. an intermediate; 12. a bracket; 13. a first support; 2. a damper; 3. a coil spring; 4. an upper yoke; 5. a lower yoke; 6. a drive shaft.

Detailed Description

For ease of understanding, the present invention is further described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, fig. 1 is a schematic perspective view of a dual-wishbone rear suspension for an automobile according to an embodiment of the present invention, and fig. 2 is a schematic perspective view of another view of the dual-wishbone rear suspension. The double-fork arm type rear suspension provided by the embodiment of the invention comprises a wheel bracket 1, shock absorbers 2, an upper fork arm 4 and a lower fork arm 5, wherein the wheel bracket 1 is provided with a through hole for a driving shaft 6 (see fig. 4) to pass through, the two shock absorbers 2 are arranged on the wheel bracket 1 and symmetrically arranged on the front side and the rear side of a wheel axis, the upper fork arm 4 and the lower fork arm 5 are arranged on the upper side and the lower side of the wheel axis and hinged with the wheel bracket 1, and the upper fork arm 4 and the lower fork arm 5 rotate relative to the wheel bracket 1 in a vehicle body cross section.

Referring to fig. 4, in the double-fork-arm type rear suspension provided by the invention, two dampers 2 are arranged on a wheel bracket 1 and symmetrically arranged on the front side and the rear side of a wheel axis, so that not only is the lower fork arm 5 prevented from bearing additional bending moment from the dampers 2 and the mounting position of a driving shaft 6 avoided, but also a certain span is formed by the two dampers 2 in the longitudinal direction of the vehicle body, and the comfort can be effectively improved.

In a practical application, the lower end of the shock absorber 2 is generally hinged to the wheel bracket 1, and the upper end is also generally hinged to the vehicle body or the vehicle frame, as shown in fig. 1 and 2, in this embodiment, the shock absorber 2 rotates in the cross section of the vehicle body relative to the wheel bracket 1.

The shock absorber 2 is generally sleeved with a coil spring 3, and the upper fork arm 4 and the lower fork arm 5 can be in an A shape or a V shape.

In this embodiment, as shown in fig. 3, the specific structure of the wheel bracket 1 is that the wheel bracket 1 includes an upright annular middle body 11, and a first support 13 for mounting a fork arm is fixedly connected to the upper end and the lower end of the middle body 11, and the first support 13 is a horizontal cylinder, that is, a hinge hole of the first support 13 extends along the longitudinal direction of the vehicle body.

Two L-shaped brackets 12 fixedly connected with the intermediate body 11 are symmetrically arranged at positions which are different from the first brackets 13 by 90 degrees in the circumferential direction of the intermediate body 11, the long edges of the brackets 12 extend longitudinally along the vehicle body, the short edges face the inner side of the vehicle body, the tail ends of the short edges of the brackets 12 are provided with second brackets for mounting the shock absorbers 2, and the second brackets are of fork-shaped structures.

The invention also provides an automobile comprising the double-fork arm type rear suspension disclosed in the embodiment. Since the double-wishbone type rear suspension disclosed in the above embodiment has the above technical effects, the automobile with the double-wishbone type rear suspension also has the above technical effects, and is not described herein again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double wishbone rear suspension for an automobile comprising:

the wheel bracket (1), the wheel bracket (1) is provided with a through hole for a driving shaft (6) to pass through, the wheel bracket (1) comprises a circular middle body (11) which is vertically arranged, the upper end and the lower end of the middle body (11) are fixedly connected with a first support (13) for mounting a fork arm, the first support (13) is a horizontal cylinder, two L-shaped brackets (12) which are fixedly connected with the middle body (11) are symmetrically arranged at positions which are different from the first support (13) by 90 degrees in the circumferential direction of the middle body (11), the long edges of the brackets (12) extend longitudinally along the vehicle body, the short edges face the inner side of the vehicle body, and the tail ends of the short edges of the brackets (12) are provided with second supports for mounting a shock absorber, and the second supports are fork-shaped structures;

two dampers (2) mounted on the wheel carrier (1), the two dampers (2) being symmetrically arranged on the front and rear sides of the wheel axis, the two dampers (2) being arranged in the vertical direction; and

an upper fork arm (4) and a lower fork arm (5) which are hinged with the wheel bracket (1), wherein the upper fork arm (4) and the lower fork arm (5) are arranged on the upper side and the lower side of a wheel axis, and rotate in a vehicle body cross section relative to the wheel bracket (1).

2. The double wishbone rear suspension according to claim 1, wherein the shock absorber (2) is hinged at its lower end to the wheel carrier (1) and at its upper end to the vehicle body or frame, the shock absorber (2) rotating in a vehicle body cross section relative to the wheel carrier (1).

3. The double-fork arm type rear suspension according to claim 1, wherein the shock absorber (2) is sleeved with a coil spring (3).

4. A double-wishbone rear suspension according to any one of claims 1 to 3, wherein the upper wishbone (4) and/or the lower wishbone (5) are a-shaped.

5. An automobile comprising a double-wishbone rear suspension, wherein the double-wishbone rear suspension is as claimed in any one of claims 1 to 4.