Disassembling device for plug bushing of aviation propeller

The utility model discloses a disassembling device for an aviation propeller plug bush, which comprises a positioning shaft and a pull rod, the positioning shaft is assembled on the plug bush from the lower part of the plug bush, so that each molded surface on the outer side of the positioning shaft is completely attached to the inner wall of the plug bush; a gasket is assembled above the positioning shaft, and a first nut is assembled on the positioning shaft and screwed tightly, so that the positioning shaft and the plug bush are integrated; then, a pull rod is assembled from the cuff of the propeller shell, a second nut is assembled at the top of the pull rod and screwed down, the pin puller drives the pull rod to move upwards, the conical surface of the pull rod moves upwards to increase the outer diameter of the positioning shaft, and when the impact force of upward movement is larger than the bonding force of the plug bush and the propeller shell, the plug bush is loosened and moves upwards to be separa