What are the works of the motor to see the appearance?

1.According to the type of working power supply: it can be divided into DC motor and AC motor.

1) DC motors can be divided into brushless DC motors and brushed DC motors according to their structure and working principle. Brushed DC motors can be divided into:

Permanent magnet DC motor and electromagnetic DC motor. Electromagnetic DC motors are divided into: series excited DC motors, parallel excited DC motors, separately excited DC motors and compound excited DC motors.

Permanent magnet DC motors are divided into: rare earth permanent magnet DC motors, ferrite permanent magnet DC motors and alnico permanent magnet DC motors. 2) Among them, AC motors can also be divided into:

Single-phase and three-phase motors. 2.According to the structure and working principle, it can be divided into:

It can be divided into DC motors, asynchronous motors, and synchronous motors. 1) Synchronous motors can be divided into: permanent magnet synchronous motors, reluctance synchronous motors and hysteresis synchronous motors.

2) Asynchronous motors can be divided into: induction motors and AC commutator motors. Induction motors can be divided into:

Three-phase asynchronous motors, single-phase asynchronous motors and shaded pole asynchronous motors, etc. AC commutator motors can be divided into: single-phase series motor, AC and DC dual-motor and push-out motor.

3.According to the starting and operation mode, it can be divided into: capacitor starting single-phase asynchronous motor, capacitor running single-phase asynchronous motor, capacitor starting single-phase asynchronous motor and split-phase single-phase asynchronous motor.

4.According to the application, it can be divided into: drive motor and control motor.

1) The drive motor can be divided into: electric motors for power tools (including drilling, polishing, grinding, slotting, cutting, reaming and other tools), electrical motors, home appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, video disc players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.) and other general small mechanical equipment (including various small machine tools, small machinery, medical equipment, electronic instruments, etc.) electric motors. 2) The control motor is divided into:

stepper motors and servo motors, etc. 5.According to the structure of the rotor, it can be divided into:

Cage type induction motors (old standard called squirrel cage type asynchronous motors) and wound rotor induction motors (old standard called wound type asynchronous motors). 6.According to the running speed, it can be divided:

High-speed motors, low-speed motors, constant-speed motors, speed-regulating motors. Low-speed motors are further divided into gear reducer motors, electromagnetic reducer motors, torque motors and claw pole synchronous motors. In addition to being divided into graded constant-speed motors, stepless constant-speed motors, stepless constant-speed motors and stepless variable speed motors, speed-regulating motors can also be divided into electromagnetic speed-regulating motors, DC speed-regulating motors, PWM frequency-conversion speed-regulating motors and switched reluctance speed-regulating motors.

The rotor speed of an asynchronous motor is always slightly lower than the synchronous speed of the rotating magnetic field. The rotor speed of the synchronous motor is always synchronous regardless of the load size.

Motor visual inspection:

1. The paint layer is intact, and there is no peeling and rusting.

2. The nameplate and wiring diagram are complete and clear.

3. The rotating rotor rotates flexibly, without jamming and abnormal sound.

Safety Precautions:

1. The motor inspection site should be spacious and clean.

2. The crane or gantry crane used for motor core pulling inspection should have high stability.

3. The core pulling of large motors must be cooperated by skilled operators, cranes and maintenance personnel.