Crane motor is the demand for continuous operation, it has frequent start, brake or flip, the direction of the load size will often change, the demand for high mechanical strength and overload capacity, to get used to mechanical vibration or impact, in order to reduce the start and stop The inertia problem, so the lifting motor is more detailed. On the other hand, the crane motor is mainly an induction motor, there are two kinds of squirrel-cage and wound, they are composed of two fundamental parts of the stator and rotor, the rotor winding embedded in the rotor core groove and constitute a star connection. Each phase rotor winding is connected with three slip rings of the rotating shaft respectively by flat copper bars, and is connected with an additional resistor through the slip rings. After the rotor winding of winding motor is connected with additional resistance, the starting function and speed regulation of the motor can be improved to adapt to frequent starting, overload and impact. Therefore, the wound motor is widely used in cranes. It can be seen that the interior of the crane motor is more delicate, so the price is more expensive than the ordinary motor.
