Direct current motor with cooling casing structure

The utility model discloses a direct-current motor with a cooling casing structure, relates to the technical field of direct-current motors, and aims to solve the problem that subsequent disassembly, assembly and maintenance are inconvenient due to the fact that an existing direct-current motor cooling assembly and a motor are of a fixed structure. The positioning seat is arranged above the direct current motor main body; the gear is installed in the positioning seat, racks are arranged at the rear end and the front end of the gear, and the racks at the rear end and the front end extend to the exteriors of the two sides of the outer wall of the positioning seat correspondingly; the telescopic guide columns are mounted at the lower end of one side of the positioning seat and the upper end of the other side of the positioning seat, and limiting blocks are mounted at one ends of the telescopic guide columns; the cooling machine shells are arranged on the two sides of the direct current motor body and connected w