MINE EXPLOSION-ISOLATING HOISTING DEVICE WITH BUILT-IN TYPE PERMANENT MAGNET MOTOR

摘要

#$%^&*AU2020202669A120200806.pdf#####ABSTRACT A mine explosion-isolating hoisting device with a built-in type permanent magnet motor includes a spindle fixed on the ground; a permanent magnet motor stator fixed on the spindle; a drum rotating relative to the spindle, the drum surrounding the spindle circumferentially; and a permanent magnet motor external rotor fixed by a spoke plate and rotating relative to the spindle; the drum is connected to the permanent magnet motor external rotor via an isolating disc; and a radial distance between an outer circumferential surface of the permanent magnet motor external rotor and an inner wall of the drum is greater than a preset value.10 11 12 13 14 15 16 17 10 18, 7 21 6 -22 3 FIG. 1 1 /17