Special tape spool rotor of high efficiency motor

The utility model relates to a special tape spool rotor of high efficiency motor, including the axle body, big bearing, the dynamic balance board, the sheath, the magnet steel, the rotor axle sleeve,little bearing, its characterized in that dynamic balance board is two, two dynamic balance boards synthesize cylindrical cavity with drum type magnet steel group, through -hole in the middle of the driven balance plate of axle body passes, axle body dew is provided with big bearing in dynamic balance board and the synthetic external side one end of cylindrical cavity of drum type magnet steel group, the other end is provided with little bearing, for the frustum of a cone on the axle body end outside the staff holds, and be provided with the tangent plane on the frustum of a cone, special tapespool rotor of high efficiency motor is through the cylindrical cavity of dynamic balance board with magnet steel group one -tenth to at the inside rotor axle sleeve that sets up of cavity, make axlebody and magnet steel form