CN204895010U

CN204895010U - Swing arm assembly under automotive suspension

Info

Publication number: CN204895010U
Application number: CN201520409618.3U
Authority: CN
Inventors: 刘杰; 艾伦·华尔; 徐铄; 陆海波
Original assignee: Beijing Changan Automobile Engineering Technology Research Co Ltd
Current assignee: Beijing Changan Automobile Engineering Technology Research Co Ltd
Priority date: 2015-06-15
Filing date: 2015-06-15
Publication date: 2015-12-23
Anticipated expiration: 2025-06-15

Abstract

The utility model relates to a swing arm assembly under automotive suspension, include the swing arm body that is formed by swing arm upper part of the body and the butt welding of the swing arm lower part of the body, the swing arm body has two connected to the frame ends and a knuckle link, and one of them connected to the frame end is equipped with the front liner bushing pipe, bush bushing pipe after another connected to the frame end is equipped with, the knuckle link is equipped with bulb round pin mounting hole, divide into leaning on interior first mounting hole and leaning on two outer second mounting holes, its characterized in that: position on the swing arm body between swing arm center and back bush bushing pipe, the swing arm upper part of the body and the swing arm lower part of the body are equipped with respectively and corresponding concavely sink the groove to this internal rectangle of swing arm, and the rectangle sinks the transversal dumbbell -shaped that personally submits of swing arm body of groove department. The utility model discloses intensity and durability requirement can enough be satisfied to it, can satisfy the lightweight designing requirement again.

Description

Lower suspension arm of automotive suspension assembly

Technical field

The utility model relates to auto parts and components, is specifically related to a kind of Lower suspension arm of automotive suspension assembly.

Background technology

The effect of Lower suspension arm of automotive suspension assembly is connection vehicle frame or subframe, plays carrying and guiding two effects, and decayed by the flexibly jointed chain of rubber bush is passed to the vibration of vehicle body simultaneously by road surface.

Lower swing arm assembly conventional at present as shown in Figure 1 and Figure 2, it comprises the swing arm body by swing arm upper body 1 and swing arm lower body 2 butt welding, swing arm body has two vehicle frame coupling ends and a steering swivel coupling end, one of them vehicle frame coupling end is provided with front lining bushing pipe 3, another vehicle frame coupling end is provided with back bush bushing pipe 4, described steering swivel coupling end is provided with three for assembling the mounting hole of ball-stud socket, is divided into the first inner mounting hole 6 and outer two the second mounting holes 7.Due to described swing arm upper body, swing arm lower body is metal plate punching parts, for the ease of punch forming, swing arm upper body and swing arm lower body are typically designed to comparatively smooth structure, as shown in Figure 3, this body section of swing arm that the two butt welding is formed is generally the rectangle of comparatively rule, but bear larger load due to lower swing arm assembly, for meeting its intensity and endurance quality requirement, swing arm upper body and swing arm lower body then need to design wider, its material thickness also requires thicker, it is caused to be set up the more space of needs at cloth, the problems such as interference are brought to suspension arrangement, also can increase the weight of swing arm assembly simultaneously, do not meet automotive light weight technology designing requirement, also car load traveling comfort is made to reduce, bring the increase of cost simultaneously.Simultaneously, for the steering swivel coupling end of swing arm body, under car load environment, force and moment is by being delivered to swing arm upper body 1 and swing arm lower body 2 through the bolt of described three mounting holes, find in three mounting hole central areas of steering swivel coupling end large by stress by mechanical analysis, as shown in Figure 4, the section that two the second mounting holes of described steering swivel coupling end go out is for being uniformly distributed, this architecture basics will improve intensity further, can only realize by increasing steel plate thickness, but the increase of weight and cost can be caused like this.

Summary of the invention

The purpose of this utility model is to provide a kind of Lower suspension arm of automotive suspension assembly, and it can either meet intensity and endurance quality requirement, can meet light-weight design requirement again.

Lower suspension arm of automotive suspension assembly described in the utility model, it comprises the swing arm body by swing arm upper body and the butt welding of swing arm lower body, swing arm body has two vehicle frame coupling ends and a steering swivel coupling end, one of them vehicle frame coupling end is provided with front lining bushing pipe, another vehicle frame coupling end is provided with back bush bushing pipe, described steering swivel coupling end is provided with ball end mounting hole, is divided into the first inner mounting hole and outer two the second mounting holes; Position on swing arm body between swing arm center and back bush bushing pipe, described swing arm upper body and swing arm lower body are respectively equipped with the recessed to the intrinsic rectangle deep gouge of swing arm of correspondence, and the swing arm body cross-section at rectangle deep gouge place is dumbbell shaped.

Further, described swing arm lower body is provided with reinforcement between two the first mounting holes protruding.

The utility model has the following advantages: described swing arm assembly arranges rectangle deep gouge by the position between the swing arm center and back bush bushing pipe of swing arm upper body and swing arm lower body, the swing arm body cross-section making rectangle deep gouge place is dumbbell shaped, thus improve the intensity of swing arm assembly, therefore without the need to increasing swing arm material thickness and swing arm width just can provide enough intensity and endurance quality; Meanwhile, described swing arm lower body being provided with between two the first mounting holes and strengthening projection, the intensity at the ball end mounting hole position of steering swivel coupling end is improved, improving it by load capacity, without the need to increasing steel plate thickness.

Accompanying drawing explanation

Fig. 1 is the schematic diagram one (swing arm upper body) of prior art.

Fig. 2 is the schematic diagram two (swing arm lower body) of prior art.

Fig. 3 is A-A cross sectional drawing in Fig. 1.

Fig. 4 is C-C cross sectional drawing in Fig. 2.

Fig. 5 is schematic diagram one (swing arm upper body) of the present utility model.

Fig. 6 is schematic diagram two (swing arm lower body) of the present utility model.

Fig. 7 is B-B cross sectional drawing in Fig. 5.

Fig. 8 is D-D cross sectional drawing in Fig. 6.

In figure: 1-swing arm upper body, 2-swing arm lower body, 3-front lining bushing pipe, 4-back bush bushing pipe, 5-rectangle deep gouge, 51-liquid-leaking nozzle, 6-first mounting hole, 7-second mounting hole, 8-strengthens projection.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 5, Figure 6, described Lower suspension arm of automotive suspension assembly, comprise the swing arm body by swing arm upper body 1 and swing arm lower body 2 butt welding, swing arm body has two vehicle frame coupling ends and a steering swivel coupling end, one of them vehicle frame coupling end is provided with front lining bushing pipe 3, another vehicle frame coupling end is provided with back bush bushing pipe 4, and described steering swivel coupling end is provided with ball end mounting hole, is divided into the first inner mounting hole 6 and outer two the second mounting holes 7.Position on described swing arm body between swing arm center and back bush bushing pipe, described swing arm upper body 1 and swing arm lower body 2 are respectively equipped with the recessed to the intrinsic rectangle deep gouge 5 of swing arm of correspondence, the swing arm body cross-section at rectangle deep gouge place is dumbbell shaped (see Fig. 7), the swing arm structure that original cross-sectional plane is rectangular in prior art, its intensity is largely increased, and without the need to increasing swing arm material thickness and swing arm width.Liquid-leaking nozzle 51 is equipped with, for application leakage in the rectangle deep gouge 5 of described swing arm upper body and swing arm lower body.

In order to improve steering swivel coupling end bearing load ability, avoiding the stress at ball end mounting hole place to concentrate, described swing arm lower body 2 being provided with between two the first mounting holes 7 and strengthening protruding 8(see Fig. 8).

Claims

1. a Lower suspension arm of automotive suspension assembly, comprise the swing arm body by swing arm upper body (1) and swing arm lower body (2) butt welding, swing arm body has two vehicle frame coupling ends and a steering swivel coupling end, one of them vehicle frame coupling end is provided with front lining bushing pipe (3), another vehicle frame coupling end is provided with back bush bushing pipe (4), described steering swivel coupling end is provided with ball end mounting hole, is divided into inner the first mounting hole (6) and outer two the second mounting holes (7); It is characterized in that: the position on swing arm body between swing arm center and back bush bushing pipe (4), described swing arm upper body and swing arm lower body are respectively equipped with the recessed to the intrinsic rectangle deep gouge (5) of swing arm of correspondence, and the swing arm body cross-section at rectangle deep gouge place is dumbbell shaped.

2. a kind of Lower suspension arm of automotive suspension assembly according to claim 1, is characterized in that: be provided with between two the first mounting holes on described swing arm lower body and strengthen protruding (8).