Unidirectional clutch decoupling device for transferring torque between belt wheel and shaft

摘要

The patent application discloses a unidirectional clutch decoupling device for transferring torque between a belt wheel and a shaft. The unidirectional clutch decoupling device includes a friction spring, an outer ring, a shaft sleeve and an elastic unit. The friction spring is combined with the inner surface of the belt wheel in a rubbing mode. The outer ring is arranged in the space formed by the friction spring. The relative position of the outer ring and the friction spring is fixed. The shaft sleeve is used for accommodating the shaft, and the relative position of the shaft sleeve and the shaft is fixed. The elastic unit is located between the outer ring and the shaft sleeve and used for transferring torque of the outer ring to the shaft sleeve.

主权项

1. A unidirectional clutch decoupling device for transferring torque between a belt wheel and a shaft comprising:
a friction spring which is combined with an inner surface of the belt wheel in a rubbing mode; an outer ring which is arranged in a space formed by the friction spring; a shaft sleeve which is used for accommodating the shaft; and an elastic unit which is located between the outer ring and the shaft sleeve and used for transferring torque of the outer ring to the shaft sleeve; wherein a relative position of the outer ring and the friction spring is fixed; and the relative position of the shaft sleeve and the shaft is fixed; and wherein when the outer ring drives the shaft sleeve to rotate, the elastic unit reduces or eliminates rotation vibration of the outer ring and the shaft sleeve through deformation; wherein an inner surface of the outer ring comprises a plurality of convex plates; an outer surface of the shaft sleeve comprises a plurality of convex plates; the elastic unit is fixed by the convex plates of the outer ring and the convex plates of the shaft sleeve; wherein the elastic unit is a serpentine spring; wherein the outer surface of the outer ring comprises a groove which is used for accommodating an end of the friction spring which bends inwards; wherein the belt wheel rotates relative to the shaft sleeve through two antifriction bearings, the two antifriction bearings are respectively arranged on both ends of the unidirectional clutch decoupling device; wherein the outer ring comprises a step for blocking the friction spring; wherein the end of the friction spring which bends inwards contacts with the elastic unit and is used for transferring torque from the inner surface of the belt wheel to the elastic unit; and wherein the outer ring is made of at least one from the group comprising plastic, composite material or metal material.