1. The motor is excited by permanent magnet materials to realize low-speed and high-torque power transmission. 2. The frequency converter is used to control the motor, which can directly drive the mine hoisting equipment. It has simple structure, compact layout, gearless direct connection, four-quadrant operation, high efficiency and energy saving, large starting torque, strong overload capacity, soft start, soft stop, soft It has the advantages of impact, high control accuracy, high reliability, small size, convenient installation, and maintenance-free system.