Modular permanent magnet direct drive motor structure for ball mill

The utility model discloses a modular permanent magnet direct drive motor structure for a ball mill, which comprises a modular drive motor, a rotary drum, a gasket and a support frame, the modular drive motor comprises a fan-shaped stator block, a stator shell and a coil, a boss is welded on the inner side surface of the support frame along the circumference, the boss is provided with a threaded hole, and the rotary drum is arranged on the support frame. The module driving motor is inserted in the radial direction of the supporting frame. According to the utility model, the positions of the fan-shaped stator blocks are adjusted by the gaskets, so that the fan-shaped stator blocks can still be wound on the motor rotor at uniform gaps after the rotating axis of the rotating drum deviates from the central axis of the whole motor stator due to processing and assembling errors or abrasion of a drum supporting system; the fan-shaped stator blocks do not interfere with each other, so that the roller supporting syste