Excavator working device shaft sleeve dismounting tool and using method thereof

The invention discloses an excavator working device shaft sleeve dismounting tool and a using method thereof, and belongs to the technical field of shaft sleeve dismounting tools. The shaft sleeve dismounting tool comprises a single-action hollow plunger hydraulic cylinder, and a clamping jaw assembly is axially installed in the single-action hollow plunger hydraulic cylinder; the single-action hollow plunger hydraulic cylinder drives the clamping jaw assembly to move in the direction away from the shaft seat, a clamping jaw control assembly is arranged at the tail end of the clamping jaw assembly, the clamping jaw assembly extends into the shaft seat, and the clamping jaw control assembly acts to drive clamping jaws on the clamping jaw assembly to be unfolded and then make contact with the bottom face of the inner side of the shaft sleeve. A fixing assembly fixedly contacted with the surface of the shaft seat is arranged on the end face of the hollow plunger hydraulic cylinder. The dismounting device is suit