Diaphragm spring for normally open type clutch

• Main Authors: LU HUIYE, NI CHUNSHENG, LU TONGLI, WU MINGXIANG, ZHANG JIANWU
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2009
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a diaphragm spring for a normally open type clutch, belonging to the technical field of the automatic clutch of the automobile. The diaphragm spring is of disc-shaped structure and comprises a disc-spring part, a plurality of jointing finger parts and a plurality of stress releasing holes, wherein the plurality of jointing finger parts with the same structure are centrally symmetrical by the center of a circle of the diaphragm spring; and the outer ends of the jointing finger parts are fixedly connected with the disc-spring part which is provided with the plurality of stress releasing holes along the peripheral direction. The diaphragm spring not only reserves the advantages of being capable of reducing resilience force and having zero rigidity in a wearing route of a frictional plate, but also overcomes the problem of overlarge pressure, thus leading the elastic deformation of a thrust plate and a housing to decrease, leading the starting operation of an executive device to become ea