| 摘要 |
PURPOSE: A vibration reducing flywheel of a vehicle is provided to damp rotational vibration of a flywheel by dividing into double mass and inserting an elastic medium, and to prevent wear of a spring by forming friction in a large area. CONSTITUTION: A double mass vibration reducing flywheel is composed of primary mass(1), secondary mass(2), two springs(4) damping by frictionizing the primary mass and a cover, a ring-shaped spring fixing unit, and a round drive plate. The primary mass is supported with the secondary mass combined with the drive plate by a rivet(13) and a bearing(10), and assembled with a rivet(14) and closed by a cap(15). The rotational force of the primary mass is increased in fluctuating torque of an engine, and the torque is increased linearly by straining a spring with relative motion of the drive plate. The spring is strained with rotating reversely in case of the torque of the engine to be relatively less than the secondary mass. The hysteresis is generated with friction between a spring and the primary mass or the cover. The restoring force is generated with fastening the end of the spring by the primary mass, the cover, the drive plate and the spring fixing unit, and with spreading to 40 angular degrees. The damper of the flywheel is tuned with the drive plate, and the driving experience is improved with reducing vibration by the restoring force of the spring.
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