Motor coupling dismounting device

The utility model discloses a device for disassembling a motor coupler, which comprises a coupler with a motor shaft and a hydraulic jack, the end part of the hydraulic jack is horizontally fixed on a frame, the coupler with the motor shaft is arranged at the front end of the hydraulic jack, one end of the coupler is lined on a movable U-shaped seat component, and the other end of the coupler is lined on the movable U-shaped seat component. The movable U-shaped seat comprises a base, a transverse sliding way is arranged in the base, the lower end of a longitudinal positioning seat is assembled in the transverse sliding way, the bottom of the longitudinal positioning seat is further fixed to the lower bottom face of the base by being screwed with a bolt, a longitudinal sliding way is arranged in the longitudinal direction of the longitudinal positioning seat, and the longitudinal sliding way is connected with a U-shaped assembly block. The longitudinal slide way and the U-shaped assembly block are positioned o