The CD1 electric hoist adopts a brake systemCone rotor motorWhen the motor is not working,Cone brake (blade brake wheel)Hold the rear cover of the motor tightly and keep it in the braking state at all times. When the motor is powered on during operation, the conical rotor generates axial magnetic pulling force, which overcomes the spring force and causesFan brake wheelDrive the brake ring to disengageRear end coverThe motor is running normally. After power failure, the axial magnetic pulling force disappears, and under the action of spring force, the fan brake wheel returns to its original state, achieving braking. MD1 typeElectric hoistExcept for replacing the lifting motor with a dual speed motor set, the other parts are the same as the CD type electric hoist. The motor set consists of a main lifting motor, a slow lifting motor, and a slow driving device. When the main lifting motor is working, the slow lifting motor is not powered and in a braking state. The slow driving device does not work, and the rear cover of the lifting motor acts. When the slow lifting motor is working, the slow driving device drives the main lifting cone rotor to rotate. At this time, the main lifting motor does not work, and the fan brake wheel acts as a clutch. The entire mechanism is braked by the brake of the slow lifting motor, resulting in two lifting speeds.