Torsion damper and vehicle using torsion damper

Abstract

The invention relates to a torsion damper and a vehicle using the torsion damper. The torsion damper comprises a driving disc and a driven disc, and a pre-damping spring, a forward damping spring anda backward damping spring are arranged between the driving disc and the driven disc in a jacking manner; and the driving disc or the driven disc is provided with a forward triggering part which is used for being in jacking fit with the corresponding end of the forward damping spring when the driving disc rotates by a forward set angle so that the forward damping spring can elastically act betweenthe driving disc and the driven disc, and the driving disc or the driven disc is further provided with a backward triggering part which is used for being in jacking fit with the corresponding end of the backward damping spring when the driving disc rotates by a backward set angle so that the backward damping spring can elastically act between the driving disc and the driven disc, wherein the forward set angle is larger than or smaller than the backward set angle. Torsion curves of the driving disc during forward and backward torsion are different, the effective torsion load working range of the driving disc is enlarged, noise is reduced, and meanwhile, the reliability of the torsion damper is improved.

Description

technical field [0001] The present invention relates to a torsional vibration damper and a vehicle using the same. Background technique [0002] At present, in the power system of a hybrid electric vehicle, each power unit (such as an engine, a motor, etc.) is connected to a speed change mechanism through transmission in different ways. Since the operating principles and working conditions of each power unit in the power system are quite different, such as the mechanical characteristics of the engine and the motor are completely different, when the power system outputs power, vibration and shock will be generated in the transmission mechanism, which will affect the power system. normal work. [0003] The Chinese utility model patent with the authorized notification number CN203880009U discloses a torsional shock absorber, which includes two coaxially spaced passive disks and a coaxially rotatable active disk assembled between the two passive disks. The passive disk is the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a torsional shock absorber to solve the problem that the torsional shock absorber in the prior art has the same forward and reverse torsional curves, which easily causes the transmission system to resonate, resulting in a larger noise when the vehicle starts and stops The purpose of the present invention is also to provide a vehicle using the torsional shock absorber, to solve the problem that the forward and reverse torsional curves of the torsional shock absorber in the prior art are the same, which easily causes the transmission system to resonate, causing the vehicle to stop when starting and stopping. the problem of loud noise

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