Elastic retainer of overrunning clutch and large-torque overrunning clutch

According to the elastic retainer of the overrun clutch and the large-torque overrun clutch, the elastic retainer adopts a thin-plate elastic body design, a spring and movable lifting pin composite structure of an original overrun clutch is replaced, and the occupied space of the elastic retainer is greatly reduced; according to the large-torque overrunning clutch adopting the elastic retainer, due to the fact that the occupied space of the elastic retainer is reduced, on the premise of the same structural size of the inner ring, more wedge grooves can be formed in the inner ring, the number of rollers arranged between the inner ring and the outer ring is correspondingly larger, and the diameters of the rollers are larger; meanwhile, due to the structural design of the two symmetrically-arranged elastic retainers, elastic supporting points of the roller are arranged at the two ends of the roller in the length direction, the problem that deflection is likely to be caused by an existing middle elastic support o