Jacking device for cab of mining special vehicle

The utility model belongs to the technical field of automobile accessories, and particularly relates to a mining special vehicle cab jacking device which comprises a fixing plate, a sliding table is fixedly welded to the lower surface of the fixing plate, a guide groove is formed in the lower surface of the sliding table, a movable seat is arranged in an inner cavity of the guide groove in a sliding mode, and a servo motor is installed on the surface of one end of the sliding table. The power output end of the servo motor is connected with a lead screw, one end of the lead screw is connected with a movable seat in a threaded penetrating mode, the lower surface of the movable seat is connected with a mounting frame, the mounting frame is of a rectangular structure, and a hydraulic oil tank is arranged at one end of the upper surface of the mounting frame. The problems that an engine of a special mining vehicle is installed at the bottom of a cab, when the engine needs to be maintained, the cab needs to be jack