Multistage-damping torsion damper for hybrid electric vehicle

Abstract

The invention discloses a multistage-damping torsion damper for a hybrid electric vehicle, belonging to the technical field of hybrid electric vehicle clutches. The invention aims at providing the multistage-damping torsion damper for the hybrid electric vehicle, wherein the multistage-damping torsion damper is suitable for the hybrid electric vehicle and is capable of realizing multistage buffering of a large torque brought by an engine and effectively reducing the abnormal sound probability generated by the whole transmission system. An idling damper is arranged between a predamping driven disk and a predamping cover plate; a driven disk and a damping disk are respectively provided with a first-stage main damper, a second-stage main damper and a third-stage main damper; and the first-stage main damper is composed of two groups of internally and externally sleeved springs. The distribution radius of the damping springs and the rigidity of the springs are increased, and the torsion limiting angle and limit torque of the torsion damper are effectively increased, so that the torsion damper can meet the special requirements of hybrid electric buses on the torsion damping characteristic, and the torsion damper is a brand-new designed and manufactured multistage-damping large-corner silencing torsion damper.

Description

technical field [0001] The invention belongs to the technical field of hybrid vehicle clutches. Background technique [0002] During the driving process of the car, due to the unbalanced operation of the internal combustion engine, the periodic change of the torque will cause the transmission system to vibrate. The application of torsional vibration dampers plays a big role in reducing noise. [0003] The main component of the torsional shock absorber. When the elastic element is in use, the elastic element will be compressed due to the action of torque. Under the action of instantaneous large torque, the elastic element will be forcibly compressed to the limit, exceeding the torsion limit angle, causing the spring to collapse Dead, so repeated, the life of the elastic element will be shortened, or even broken. When the torsional shock absorber is in a high-speed rotation state, the failure of the elastic element will definitely cause noise and vibration, and make the entir...

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Problems solved by technology

[0003] The main component of the torsional shock absorber. When the elastic element is in use, the elastic element will be compressed due to the action of torque. Under the action of instantaneous large torque, the elastic element will be forcibly compressed to the limit, exceeding the torsion limit angle, causing the spring to collapse Dead, so repeated, the life of the elastic element will be shortened, or even broken. When the torsional shock absorber is in a high-speed rotation state, the failure of the elastic element will definitely cause noise and vibration, and cause abnormal noise in the entire transmission system.

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