Winch hub repairing device for coal mine

The utility model provides a winch hub repairing device for a coal mine, and relates to the field of winches for the coal mine. The winch hub repairing device for the coal mine comprises a mounting base and a winch equipment body, the winch equipment body comprises two supporting shells, a wire wheel and a winch power box, two supporting frames are arranged on one side of the mounting base, and a mounting plate is arranged at the tops of the two supporting frames. According to the winch hub repairing device for the coal mine, the rotating polishing roller conducts friction repairing on the wire wheel and a brake hub installed on the wire wheel, it is guaranteed that the outer surfaces of the wire wheel and the brake hub installed on the wire wheel are smooth, and the matching efficiency of the wire wheel and a steel wire rope and the matching efficiency of the brake hub installed on the wire wheel and a brake block are guaranteed; the abrasion speed of a brake hub installed on the wire wheel, a brake block in