Auxiliary tool for disassembling and assembling oil seal of hub reduction gear

The utility model belongs to the related field of matched workpieces of automobile speed reducing and torque increasing devices, and discloses an auxiliary tool for disassembling and assembling an oil seal of a hub reduction gear, which comprises a base, a screw rod, a support frame, a middle sleeve, an oil seal pressure plate and a hand spinning pressure plate, the base is used as a support seat of the whole auxiliary tool, and the screw rod is arranged on the upper side of the base; the supporting frame is vertically arranged on the base, and the middle sleeve is installed at the lower end of the hand spinning pressing disc and used for transmitting pressure to the oil seal pressing disc. The oil seal pressing discs are installed on the supporting frame at intervals in the height direction of the supporting frame and comprise a plurality of pressing disc elements corresponding to oil seals of different sizes and specifications. The hand spinning pressing disc is arranged on the uppermost portion of the supp