As a lifting equipment, it is necessary to lift objects vertically. Vertical lifting is much stronger than flat lifting and requires much higher requirements. Therefore, the lifting motor is different from ordinary motors. Let’s take a look. Explain the difference between the two motors used in the small crane.
The crane motor needs to work continuously. It has frequent starting, braking or turning, and the load size and direction often change. It needs high mechanical strength and overload capacity to adapt to mechanical vibration or impact, in order to reduce starting and stopping Because of the inertia problem, the lifting motor is more detailed.
On the other hand, hoisting motors are mainly induction motors. There are two types of squirrel cage and winding. They are composed of two basic parts: the stator and the rotor. The rotor winding is embedded in the groove of the rotor core. Star connection. Each phase of the rotor winding is connected to the three slip rings of the rotating shaft with flat copper bars, and is connected with additional resistors through the slip rings. After the rotor winding of the winding motor is connected with additional resistance, the starting performance and speed regulation of the motor can be improved to adapt to frequent starting, overload and impact. Therefore, winding motors are widely used in cranes.
We can see from the above that the crane motor is more delicate inside, so the price is more expensive than ordinary motors.
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