Dismounting device for maintenance of gear reducer

The utility model discloses a dismounting device for maintenance of a gear reducer, which comprises a maintenance machine body, and the top end of the maintenance machine body is rotatably connected with an electric rotating shaft; the supporting rod at the bottom end of the maintenance machine body is adjusted through the fixing rod and the threaded hole, the maintenance machine body is stably placed on the ground, then an external power source is switched on, the gear reducer to be disassembled and maintained is placed at the top end of the clamping table, and then the rotating handle is rotated to drive the two-way lead screw to rotate; the bidirectional lead screw drives the sliding block to approach the gear speed reducer, the sliding block drives the clamping plate to fix the gear speed reducer, the anti-skid base plate at one end of the clamping plate can play an anti-skid role on the gear speed reducer, the gear speed reducers of different specifications can be fixed through the bidirectional lead scr