Buffering device and automobile comprising buffering device

Abstract

The invention relates to a buffering device and an automobile comprising the buffering device. The buffering device comprises a torsion beam assembly, a buffering assembly, a spring and a damper assembly. The spring and the damper assembly are fixed to the torsion beam assembly respectively. The buffering assembly comprises a buffering block and a limiting block, wherein the limiting block is fixed to the spring and located inside the spring, and the buffering block is arranged inside the damper assembly. Further provided is the automobile comprising the buffering device. The buffering device has the advantages that the load borne by the buffering assembly is borne by the buffering block and the limiting block together, stiffness requirements for the buffering block and the limiting block are effectively lowered, cracks caused by fatigue of the buffering block and the limiting block are avoided, the length of the damper assembly and the length of the spring can be reduced, buffering performance is stable, a buffering function and a limiting function can be achieved at the same time, and both the requirement for comfort and the requirement for limiting are well met.

Description

technical field [0001] The invention relates to a buffer device, in particular to a buffer device and an automobile with the buffer device. Background technique [0002] The torsion beam semi-independent suspension is the commonly used rear suspension structure of automobiles at present. It has the advantages of simple structure, low cost and small space occupation. The trailing arms are welded together, the front end of the trailing arm is connected with the body through rubber-metal support, the rear end of the trailing arm is connected with the wheel hub, shock absorber and spring, and the buffer assembly is located in the shock absorber or spring to play the role of buffer and limit . [0003] Existing torsion beam suspension structure as attached figure 1 As shown, it includes a torsion beam 101, a buffer assembly 102, a coil spring 103, a bracket 104 and a shock absorber assembly 105, wherein the buffer assembly 102 is a single part, which mainly plays the role of bu...

AI Technical Summary

Problems solved by technology

[0005] 1) Since the buffer assembly 102 is arranged in the shock absorber assembly 105 or the coil spring 103, the buffer assembly 102 usually has a relatively small diameter and a long length, which easily causes the buffer block to become unstable;

[0006] 2) The buffer assembly 102 needs to act as a buffer and a limiter at the same time, and bears a large load, which is likely to cause fatigue cracking of the buffer assembly 102 and its buffer block seat;

[0007] 3) Due to the limitation of the space size, the buffer assembly 102 has to play the role of buffer and limit at the same time. If the buffer assembly 102 meets the limit requirements, the stiffness of the buffer block cannot meet the best comfort requirements, or, if the buffer If the component 102 meets the comfort requirements, it is usually difficult to meet the limit requirements, and fatigue cracking of the buffer component 102 is easy to occur

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