阅读说明：本技术 扭转减振器 (Torsional vibration damper ) 是由 薛勇 于 2018-03-20 设计创作，主要内容包括：一种扭转减振器(100,200,300),其中,初级质量件(20)和通道盖件(70)在外周缘固定到一起,在扭转减振器(100,200,300)的轴向上,支承环(90)的至少一部分设置在初级质量件(20)和法兰(40)之间,法兰(40)、膜片弹簧(60)和次级质量件(50)固定到一起,膜片弹簧(60)位于法兰(40)和次级质量件(50)之间并与通道盖件(70)弹性压抵。其中,支承环(90)包括调节支承环(92)和支承法兰(40)的固定支承环(91),调节支承环(92)的轴向截面为楔形,在磨损和/或膜片弹簧(60)塑性变形使得法兰(40)和初级质量件(20)之间的压力变小时,调节支承环(92)在离心力的作用下相对于固定支承环(91)朝向扭转减振器(100,200,300)的径向外侧移动,从而保持或增大初级质量件(20)和法兰(40)之间的轴向距离,维持膜片弹簧(60)的弹簧力大致恒定。(A torsional vibration damper (100, 200, 300) in which a primary mass member (20) and a passage cover member (70) are fixed together at an outer periphery, at least a portion of a support ring (90) is disposed between the primary mass member (20) and a flange (40) in an axial direction of the torsional vibration damper (100, 200, 300), the flange (40), a diaphragm spring (60) and a secondary mass member (50) are fixed together, and the diaphragm spring (60) is located between the flange (40) and the secondary mass member (50) and elastically pressed against the passage cover member (70). Wherein the support ring (90) comprises an adjusting support ring (92) and a fixed support ring (91) supporting the flange (40), the axial section of the adjusting support ring (92) is wedge-shaped, and the adjusting support ring (92) moves towards the radial outer side of the torsional vibration damper (100, 200, 300) relative to the fixed support ring (91) under the action of centrifugal force when the pressure between the flange (40) and the primary mass (20) is reduced due to wear and/or plastic deformation of the diaphragm spring (60), so that the axial distance between the primary mass (20) and the flange (40) is maintained or increased, and the spring force of the diaphragm spring (60) is maintained substantially constant.)