Torsion beam bush component and production and mounting method thereof

Abstract

A torsion beam bush component comprises a tubular bush assembly with mounting support lugs and a limit ring at one end of the tubular bush assembly. The tubular bush assembly comprises an outer bush, an integrated axial inner bush and an integrated part integrally vulcanized by rubber materials. The integrated part is filled into an axial annular space between the outer bush and the integrated axial inner bush. The integrated axial inner bush is an integrated part comprising an inner bush and the supports lugs at two ends. The limit ring is flange plate with a threaded inner hole. During use, the tubular bush assembly is pressed to a torsion beam through interference fit, and the limit ring is integrally connected with the integrated axial inner bush mounted on the torsion beam in a threaded manner. A torsion beam suspension using the torsion beam bush component has improved assembling precision, overall performance and reliability. In addition, the torsion beam bush component is convenient to machine and mount and low in cost.

Description

technical field [0001] The invention belongs to auto parts and a manufacturing and installing method thereof, in particular to a torsion beam bushing assembly and a manufacturing and installing method thereof. Background technique [0002] The bushing of the torsion beam is a very important part of the torsion beam suspension. The torsion beam bushing plays the role of alleviating the vibration and impact from the road surface and ensuring the handling and stability; the guiding and buffering of the torsion beam suspension, etc. , is mainly transmitted through this bushing, therefore, the torsion beam bushing is a very complex component under stress. [0003] The existing torsion beam bushing structure such as Figure 4 Shown: It consists of outer cylinder 1a, inner sleeve 2a, rubber parts 3a, mounting lug I (4a) and mounting lug II (5a) with flange; as Figure 5 As shown, the assembly relationship is: part 3a is vulcanized together with part 1a and part 2a to form a small ...

AI Technical Summary

Problems solved by technology

[0005] 1) Mounting lug Ⅰ and mounting lug Ⅱ are press-fitted separately, and it is difficult to guarantee their shape and position tolerance;

[0006] 2) There are more processing and assembly processes, and the cost is higher;

[0007] 3) The installation lug I and the installation lug II cooperate with the inner sleeve through interference fit, and the force of this bush is very complicated, which may cause it to loosen, which will affect the performance, reliability and noise of the whole vehicle

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