电动机又分为直流电动机和交流电动机。本设计采用的是直流电动机，直流电动

Electric motors are divided into DC motors and AC motors. This design uses a DC motor, which has good starting characteristics and speed regulation characteristics, and the torque of the DC motor is also relatively large. DC motors are divided into brush DC motors and brushless DC motors. Brush DC motors have the characteristics of fast starting, timely braking, smooth speed regulation in a large range, and relatively simple control circuit: brushless DC motor running sound Small size, no sparks, long life, high speed, etc. Compared with AC asynchronous motors, shunt-excited or separately-excited DC motors have complex structure, high price, and inconvenient maintenance, but they have unique advantages in speed control performance because squirrel-cage motors cannot be speed-regulated under normal circumstances. Therefore, the equipment with high speed regulation requirements all use DC motors. This is because the DC motor can steplessly regulate the mechanical transmission mechanism is relatively simple.

Electric motors are divided into DC motors and AC motors. This design uses a DC motor, DC motor has good start-up characteristics and speed control characteristics, DC motor torque is also relatively large. DC motor is divided into brush DC motor and brushless DC motor, brush DC motor has fast start-up, timely braking, smooth speed control in a large range, control circuit is relatively simple and so on: brushless DC motor operation sound is small, no sparks, long life, high speed characteristics. And reed or he reed DC motor and AC asynchronous motor compared to although the structure complex price high maintenance is not convenient but in the speed control performance has its unique advantages because the mouse cage motor in general is not able to adjust the speed more can not be step-by-step speed adjustment so the high speed control requirements of the equipment are USing DC motor because DC motor energy stepless speed control mechanical drive mechanism is relatively simple.

Motor is divided into DC motor and AC motor. This design uses the DC motor, which has good starting characteristics and speed regulation characteristics, and the torque of the DC motor is also relatively large. DC motor is divided into brush DC motor and brushless DC motor. Brush DC motor has the characteristics of fast starting, timely braking, smooth speed regulation in a wide range, relatively simple control circuit, etc. brushless DC motor has the characteristics of small sound, no spark, long service life, high speed, etc. Compared with AC asynchronous motor, shunt or separately excited DC motor has its unique advantages in speed regulation performance, although it has complex structure, high price and inconvenient maintenance, because squirrel cage motor can not speed regulation in general, let alone stepless speed regulation, so the equipment with high speed regulation requirements adopts DC motor, because DC motor can stepless speed regulation mechanical transmission mechanism It's simple.<br>