CN103640447B

CN103640447B - Swing arm structure on a kind of suspension

Info

Publication number: CN103640447B
Application number: CN201310736235.2A
Authority: CN
Inventors: 周磊磊; 刘守银; 王晓军; 邱阳
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2016-06-08
Anticipated expiration: 2033-12-26
Also published as: CN103640447A

Abstract

The present invention relates to swing arm structure on a kind of suspension, the lining open holes including swing arm body and being fixedly connected with upper swing arm body; Described upper swing arm body is structure as a whole. Described upper swing arm body low damage joint open holes place forms swing arm structure in fork formula; An end face on the long limit of described upper swing arm body turns over volume to other end.

Description

Swing arm structure on a kind of suspension

Technical field

The invention belongs to body of a motor car field, refer to a kind of Motor Vehicle Independent Suspension System, refer to swing arm structure on a kind of suspension especially.

Background technology

After suspension, upper swing arm is the distinctive structure of independent suspension, and wheel Installation posture is determined in its effect together with lower swing arm.

Suspension system bear load excessive or meet on the way jolt time, spring generation deformation causes vehicle body and wheel relative position to change, and wheel self also can deform, in order to ensure that automotive suspension can meet service requirements, it is necessary to upper swing arm drives the wheel being arranged on steering knuckle to rotate around the rotation center of suspension together with lower swing arm.

As shown in Figure 1, in traditional suspension, swing arm welds together by upper plate 3 and lower plate 2 two pressing sheet materials, and stiffening plate 4 also to be welded to ensure its intensity in inside, and on then press-fiting in lining open holes 1, lining and ball pin realize pivoting. In traditional suspension, swing arm welds together after impact briquetting by two pieces or multi-sheets, and its shortcoming is that complete processing is complicated; It is more that a large amount of weld seam of welding process expends the energy; The pollution that welding process causes is more; Owing to sheet material usage quantity is relatively big, heavier-weight.

Summary of the invention

It is an object of the invention to the manufacture to swing arm on traditional suspension and propose improvement opportunity scheme, adopt one block of sheet material, it is not necessary to through techniques such as numerous and diverse punching presses, decrease energy consumption.

The present invention is achieved by the following technical solutions:

Swing arm structure on a kind of suspension, the lining open holes including swing arm body and being fixedly connected with upper swing arm body; Described upper swing arm body is structure as a whole.

Described upper swing arm body low damage joint open holes place forms swing arm structure in fork formula; An end face on the long limit of described upper swing arm body turns over volume to other end.

Described upper swing arm body turns in the curve that the radial section after volume is formed, and when low damage joint open holes extends to lining open holes direction, the mean curvature of its curve increases.

After described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the distance between the both ends of the surface of upper swing arm body reduces.

After described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the curve that radial section is formed is changed to approximate circle by approximate ellipsoidal.

Steering knuckle open holes place in described upper swing arm body, what the volume amount of turning over of nearly steering knuckle end face was greater than steering knuckle end face far away turns over volume amount.

The operation of described upper swing arm body part course of processing process successively includes blanking, shaping, trimming, crimping, shaping, punching and turns over hole.

The invention has the beneficial effects as follows:

The benefit that the present invention directly brings, for reducing component weight, decreases the operation in production process and energy consumption, reduces disposal of pollutants.

The present invention follows the principle of circular cross section, ensures the intensity of swing arm.

Accompanying drawing explanation

Fig. 1 is upper swing arm structure schematic diagram after traditional suspension;

Fig. 2 be the present invention suspension after upper swing arm structure schematic diagram;

Fig. 3 is the A schematic cross-section of Fig. 2 in the present invention;

Fig. 4 is the B-section schematic diagram of Fig. 2 in the present invention;

Fig. 5 is the C schematic cross-section of Fig. 2 in the present invention.

Embodiment

The technical scheme of the present invention is described in detail below by way of specific embodiment, and following embodiment is only exemplary, only can be used for explaining and illustrating the technical scheme of the present invention, and can not be interpreted as being the restriction to technical solution of the present invention.

As shown in Figures 2 to 5, in the present invention, the swing arm body main part course of processing only needs successively through following operation: blanking, shaping, trimming, crimping, shaping, punching, turn over hole etc., due to upper swing arm body only one piece of sheet material (as shown in Figure 2), it is not necessary to repeatedly process respectively.

Swing arm structure on a kind of suspension, the lining open holes 7 including swing arm body 5 and being fixedly connected with upper swing arm body 5; Described upper swing arm body is structure as a whole. The upper swing arm body main part course of processing does not need welding, directly decreases the discharge polluted with waste.

Described upper swing arm body low damage joint open holes 6 place forms swing arm structure in fork formula; An end face on the long limit of described upper swing arm body turns over volume to other end. The volume that turns in the present embodiment refers to by aforesaid blanking, shaping, trimming, crimping, shaping, punching, turns over the operations such as hole, it is achieved the curly course of sheet material.

Described upper swing arm body turns in the curve that the radial section after volume is formed, and when low damage joint open holes extends to lining open holes direction, the mean curvature of its curve increases, and sees Fig. 3, Fig. 4 and Fig. 5 respectively.

After described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the distance between the both ends of the surface of upper swing arm body reduces, and sees Fig. 3, Fig. 4 and Fig. 5 respectively.

After described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the curve that radial section is formed to approximate circle change, is shown in Fig. 3, Fig. 4 and Fig. 5 by approximate ellipsoidal respectively.

Although it has been shown and described that embodiments of the invention, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention is by claims and equivalent limits.

Claims

1. a swing arm structure on suspension, the lining open holes including swing arm body and being fixedly connected with upper swing arm body; It is characterized in that: described upper swing arm body is structure as a whole;

Described upper swing arm body low damage joint open holes place forms swing arm structure in fork formula; An end face on the long limit of described upper swing arm body turns over volume to other end;

Described upper swing arm body turns in the curve that the radial section after volume is formed, and when low damage joint open holes extends to lining open holes direction, the mean curvature of its curve increases;

After described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the curve that radial section is formed is changed to approximate circle by approximate ellipsoidal;

2. swing arm structure on suspension according to claim 1, it is characterised in that: after described upper swing arm body turns over volume, low damage joint open holes is to lining open holes direction, and the distance between the both ends of the surface of upper swing arm body reduces.

3. swing arm structure on suspension according to claim 1, it is characterised in that: the operation of described upper swing arm body part course of processing process successively includes blanking, shaping, trimming, crimping, shaping, punching and turns over hole.