Auxiliary device for replacing hydraulic pull rod of coal mining machine

The utility model relates to the technical field of coal mining machines, and discloses an auxiliary device for replacing a hydraulic pull rod of a coal mining machine, the auxiliary device comprises a base, a hydraulic jack is fixedly connected to the upper end of the base, a piston pushing rod is arranged in the hydraulic jack, and a connecting end cover is fixedly clamped to the upper end of the piston pushing rod; a fixing column is fixedly connected to the upper end of the connecting end cover, an arc-shaped supporting and connecting plate is fixedly connected to the upper end of the fixing column, a positioning stud is fixedly connected to the lower end of the connecting end cover, and a positioning screw groove in threaded connection with the positioning stud is formed in the upper end of the piston jacking rod. And the horizontal part of the connecting end cover is fixedly clamped with the upper end of the piston pushing rod through a clamping mechanism. The hydraulic jack is used for assisting instal