CN203496608U

CN203496608U - Twist beam rear axle

Info

Publication number: CN203496608U
Application number: CN201320523610.0U
Authority: CN
Inventors: 周玫; 王成龙
Original assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Current assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-03-26
Anticipated expiration: 2023-08-26

Abstract

The utility model aims to provide a twist beam rear axle, so as to improve the stress condition of a shock absorber support. The twist beam rear axle which realizes the aim comprises a cross member, a trailing arm, a shock absorber support and a spring holder support, wherein the shock absorber support and the spring holder support are an integrated member.

Description

Twist beam rear axle

Technical field

The utility model relates to automobile axle.

Background technology

Twist beam rear axle is typical semi-detached suspension, is connecting shock absorber, spring holder and vehicle body, is component part important in chassis system.

Traditional twist beam rear axle structure as shown in Figure 1, is welded with spring holder support 3 by crossbeam 1, trailing arm 2 and damper bracket 4.

Tradition damper bracket 4 connects as shown in Figure 2, and a side is connected with trailing arm 2 and forms weld seam 42, one sides and be connected with spring holder support 3, formation weld seam 43.

Damper bracket mainly bears vertical loads when automotive operation, shock absorber switching performance is subject to structure, spring holder supporting structure and the multiple impact of welding process of shock absorber support, contriver finds according to current design, damper bracket edge stress is higher, affects back axle overall performance.

Utility model content

The purpose of this utility model is to provide a kind of twist beam rear axle, to improve the stress situation of damper bracket.

For realizing the twist beam rear axle of described object, comprise crossbeam, trailing arm, damper bracket and spring holder support, wherein, damper bracket and spring holder support are integrated part.

Described twist beam rear axle, wherein, described integral piece is drawing part.

Described twist beam rear axle, wherein, described integral piece and described trailing arm have two sections of weld seams, jagged between two sections of weld seams.

Feature of the present utility model and advantage will describe in detail in the specific embodiment described later.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of existing twist beam rear axle.

Fig. 2 is the schematic diagram of damper bracket and periphery part.

Fig. 3 is the spring holder support of twist beam rear axle in the utility model embodiment and the schematic diagram of damper bracket.

The specific embodiment

In the utility model embodiment, the difference part of the twist beam rear axle shown in twist beam rear axle and Fig. 1 is the structure of spring holder support and damper bracket, and the structure of crossbeam and two longerons can be understood with reference to Fig. 1.As shown in Figure 3, spring holder support and damper bracket are integrated part 10, and it has positioning convex column 11, its corresponding spring holder support, for mounting spring, also has shock absorber installation position 12, its corresponding damper bracket, shock absorber is fixed on integral piece 10 by the hole on it.This integral piece 10 also has breach 13, and the

edge

14,15 of the integral piece 10 of breach 13 both sides can weld with trailing arm respectively, and the edge 16 of integral piece 10 is for welding with transverse arm.

Integral piece 10 unites two into one spring holder support and damper bracket, be made of one formula design, breach 13 can discharge stress, can obviously reduce the heavily stressed at shock absorber edge like this, with respect to the structure shown in Fig. 1 and Fig. 2, the design weld seam after improvement reduces, and part is manufactured easy, shock absorber strength character obviously improves simultaneously, and the risk of part failure also obviously reduces.And the design plan after changing has the advantages such as performance is strong, technique convenient, lightweight.

Claims

1. twist beam rear axle, comprises crossbeam, trailing arm, damper bracket and spring holder support, it is characterized in that, damper bracket and spring holder support are integrated part.

2. twist beam rear axle as claimed in claim 1, is characterized in that, described integral piece is drawing part.

3. twist beam rear axle as claimed in claim 1, is characterized in that, described integral piece and described trailing arm have two sections of weld seams, jagged between two sections of weld seams.