Permanent magnet motor supply: The motor rotor is also a rotating part of the motor. The motor is composed of rotor stator, which is used to realize the conversion device between electric energy mechanical energy mechanical energy electric energy. Motor rotor is divided into motor rotor generator rotor.

When the main rotor rotates at high speed, the deflection deformation occurs when its speed approaches the critical speed. Mechanical damage may be caused by resonance. The natural frequency of the transverse vibration of the rotor is multi-order, so the corresponding critical speed is also multi-order. When the working speed of the rotor is lower than the first order critical speed, it is called a rigid rotor, when the working speed of the rotor is higher than the first order critical speed, it is called a flexible rotor.

A rotor in an induction motor consisting of a rotating shaft core a closed conductor embedded in the core produces a high-speed rotating motion driven by a rotating magnetic field generated by the stator winding. Both ends of the rotor adopt rolling bearings are installed fixed in the end cover of the motor housing.

Permanent magnet motor supply: The three important devices in the motor rotor are:

1, the armature core part: its role is to insert the armature winding the end flux, in order to reduce the eddy current loss hysteresis loss in the armature core when the motor is working.

2, armature part: the role is to attack electromagnetic torque induced electromotive force, carry out energy transformation. The armature winding has many coils glass-fiber-covered flat steel copper wire strength enamelled wire.

3, commutator is also known as commutator, in the DC motor, its role is to convert the current of the DC power supply on the brush into the communication current in the armature winding, so that the electromagnetic torque tendency is stable unchanged, in the DC motor, it converts the armature winding communication electromotive force into the DC electromotive force on the output of the brush end.