A dual mass flywheel matching cvt gearbox

Abstract

The invention discloses a dual-mass flywheel matched with a CVT gearbox. The dual-mass flywheel comprises a primary mass, a secondary mass, a cover plate, a diaphragm spring, a sliding bearing and a center ring; the cover plate is fixedly connected with the primary mass; the diaphragm spring is fixedly arranged on the secondary mass; the end of the diaphragm spring is in contact with the cover plate; the sliding bearing is located between the center ring and a supporting shaft of the secondary mass; the dual-mass flywheel also comprises a friction ring; one surface of the friction ring is in contact with the cover plate, and the other surface of the friction ring is in contact with the diaphragm spring; and a radial gap exists between the sliding bearing and the supporting shaft. According to the dual-mass flywheel, the radial gap between the sliding bearing and the supporting shaft is additionally arranged to provide a space for changing the axis of the secondary mass, so that the phenomenon that the sliding bearing is stressed to deform because the primary mass and the secondary mass are not coaxial when torsional vibration is relatively serious is avoided, and the movement stability of the primary mass is improved; and due to the additional arrangement of the friction ring, a friction force between the cover plate and the diaphragm spring is increased, the rotating speed fluctuation of the secondary mass is reduced, and an abnormal sound caused by frequent collision between the secondary mass and the spring is avoided.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a dual-mass flywheel matching a CVT gearbox Background technique [0002] The structure of the traditional dual-mass flywheel is that the primary mass transmits torque to the secondary mass through flanges and springs to realize the main shock absorption function. The primary shock absorption and sealing and water-retaining functions are realized through the frictional resistance generated by the contact between the cover plate of the primary mass and the diaphragm spring of the secondary mass. The primary shock absorber and the main shock absorber perform fluctuation damping on engine fluctuations in idling and driving conditions. The secondary mass is supported on the primary mass through sliding bearings to realize the axial and radial support of the primary mass to the secondary mass. The primary mass of the dual-mass flywheel is rigidly connected to the crankshaft of th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dual-mass flywheel matching a CVT gearbox, which solves the problem of the deformation of the dual-mass flywheel caused by the out-of-axis degree between the primary mass and the secondary mass, and when the dual-mass flywheel is running at idle speed, due to the fluctuation of the rotational speed Large, the problem of abnormal knocking noise

Images