NOVEL CLUTCH DRIVEN DISC HAVING THREE-STAGE TORSIONAL DAMPING STRUCTURE WITH VARIABLE TOOTH CLEARANCES

摘要

Disclosed is a novel clutch driven disc having a three-stage torsional damping structure with variable tooth clearances, comprising: a main damping cover plate (1), a disc hub steel piece (13), friction plates (11), a large corrugated plate (10), a driven disc steel piece (16) and a disc hub core (9); a plurality of teeth (901) are uniformly disposed on the outer peripheral wall of the disc hub core (9) in a circumferential direction; the center hole of the disc hub steel piece (13) is provided with internal teeth in a circumferential direction; and the outer peripheral wall of the disc hub core (9) is provided with two small tooth spaces (902) of the disc hub core and two large tooth spaces (906) of the disc hub core arranged alternately at 90 degrees apart in the circumferential direction; pre-damping springs (7) are mounted in the small tooth spaces (902) of the disc hub core, and secondary damping springs (8) are mounted in the large tooth spaces (906) of the disc hub core; a gap L1 is provided between the spring ends (15) of the secondary damping spring (8) and the meshing surfaces of the internal teeth, and a gap L2 is provided between the teeth (901) and the meshing surfaces of the internal teeth, wherein L1 L2. The solution can satisfy different rigidities and damping that vehicles require, is particularly suitable for working conditions when vehicles crawl along due to current urban roads congestion, and solves the problem of rattling of regular clutches having a two-stage damping structure when vehicles crawl along.