Screw pump permanent magnetic synchronization explosion-proof motor

The utility model relates to a screw pump permanent magnetic synchronization explosion-proof motor. The screw pump permanent magnetic synchronization explosion-proof motor comprises an explosion-proof housing, a stator, a rotor, a main shaft, a base and an explosion-proof junction box. The explosion-proof housing comprises an upper end cover, a housing body and a lower end cover which are successively fixedly connected from the top to the bottom. The upper end of the main shaft is sleeved by a rotation sealing cover; the rotation sealing cover is fixed to the upper surface of the upper end cover; the upper end disposed at the rotation sealing cover on the main shaft is also fixedly provided with a coat shaft; the main shaft is internally provided with a center sleeve; the lower end of the main shaft is also sleeved by a bearing cover; the bearing cover and the upper surface of the lower end cover are fixed; the lower surface of the lower end cover is fixed to the base; and the portion, which is disposed betwe