A shock absorber assembly for a motor vehicle and its assembly method

Abstract

The invention discloses a shock absorber assembly for a motor vehicle and a method of assembling the same. The shock absorber assembly for a motor vehicle comprises an oil cylinder, a piston rod and asupporting base, the oil cylinder is provided with an adjusting column protruding outwards, the adjusting column is sleeved with a movable block, and the movable block is composed of a rotating partand a tray part; a first spring assembly is arranged between the movable block and the supporting base, a second spring assembly is arranged between the adjusting column and the supporting base, and the second spring assembly is located in the first spring assembly. The two spring assemblies are composed of springs, upper limiting sleeves, lower limiting sleeves and wrinkling pieces, and the wrinkling pieces are arranged to transmit axial force and plastically deform when the axial force exceeds a threshold value. The spring assemblies are additionally arranged to replace an existing stop buffer, and the structural layout can be simplified; the two spring assemblies are each provided with a wrinkling piece, and therefore secondary threshold value control can be achieved. The displacement of the movable block on the adjusting column can control the pre-loading force of the outer-layer spring, and then the axial force threshold value which can be borne by the springs can be adjusted.

Description

technical field [0001] The invention relates to the technical field of motor vehicle shock absorbers, in particular to a motor vehicle shock absorber assembly and an assembly method thereof. Background technique [0002] Although the shock absorber itself generates a damping force, it does not generate a restoring force, since this restoring force is generated by the spring associated with the damper. In situations where the forces between the spring-loaded and unsprung masses are very strong, it may occur that the shock absorber compresses beyond its set range of motion. This can lead, for example, to the end of the shock absorber cylinder fastened to the linkage or the wheel carrier facing the chassis in the region of this chassis, thereby causing damage to the shock absorber or adjoining components. [0003] For this reason, the publication number is that CN206522402U discloses a kind of shock absorber assembly that is used for motor vehicle in the patent specification, ...

AI Technical Summary

Problems solved by technology

There are still deficiencies when this shock absorber assembly is used. One is that the stop buffer of the shock absorber assembly is arranged inside the spring, resulting in a larger size of the spring, and then the overall size of the shock absorber assembly is larger. It is not conducive to simplification of components; second, the axial force threshold that the spring can bear cannot be adjusted, and it is not convenient to assemble or replace the folded parts according to the requirements

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