Repair system for welding repair of winding drum

The utility model relates to a repair system for welding repair of a winding drum, and belongs to the technical field of winding drum repair. Comprising a supporting tool, a cooling liquid pipe, a liquid storage pool and a pump machine, the supporting tool is supported in a to-be-repaired winding drum, the cooling liquid pipe is arranged in the axial direction of the to-be-repaired winding drum, the two ends of the cooling liquid pipe are installed on the to-be-repaired winding drum in a rotatable mode, and a plurality of spraying holes are formed in the cooling liquid pipe; the pump machine is used for pumping the cooling liquid in the liquid storage pool into the cooling liquid pipe, and the output end of the pump machine is connected with the cooling liquid pipe. The temperature of the drum body during welding can be reduced, the drum is prevented from being softened and collapsed due to the fact that the welding temperature is too high in the welding repair process of the drum, the situation that although