What are the classification characteristics of linear motors?

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

1) DC Motor:

According to the structure and working principle, it can be divided into: brushless DC motor and brushed DC motor.

It can be divided into permanent magnet DC motor and electromagnetic DC motor.

Permanent magnet DC motors are further divided into rare earth, ferrite, and alnico permanent magnet DC motors according to materials.

According to the excitation mode, electromagnetic DC motors are divided into series excitation, parallel excitation, separate excitation and compound excitation DC motors.

2) AC motors can be divided into: single-phase motors and three-phase motors.

The main types of motors are:

Stepper motor: Stepper motor can be divided into: two-phase hybrid stepper motor, three-phase hybrid stepper motor, five-phase hybrid stepper motor, brake stepper motor and so on.

Linear drawing motor.

Planetary gear reducer.

Brushless DC motor.

The types of motors are divided into electric motors (symbol M) and generators (symbol G).

According to the type of working power supply: motors can be divided into DC motors and AC motors. The DC motor can be divided into according to the structure and working principle:

Brushless DC motors and brushed DC motors. According to the structure and working principle, it can be divided into DC motors, asynchronous motors, and synchronous motors.

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.

How to take care of it:

The use environment should be kept dry frequently, the surface of the motor should be kept clean, and the air inlet should not be hindered by dust, fibers, etc. When the thermal protection of the motor is continuously activated, it should be found out whether the fault comes from the motor or the overload or the setting value of the protection device is too low, and the fault can be put into operation only after the fault is eliminated.

Good lubrication of the motor during operation should be ensured. The general motor runs for about 5000 hours, that is, the grease should be supplemented or replaced, and when the bearing is found to be overheated or the lubrication deteriorates, the hydraulic pressure should change the grease in time. <>

It is divided into the following three types of motors:

1. AC motor in explosion-proof occasions:

If it is to drive a high-speed oil pump, such as a 2-pole motor above 2890 rpm, because the motor is in a dangerous and explosive situation, we must check it once every half an hour, and specifically measure: the surface temperature of the motor, up to 85 90 degrees, can not be higher, because it is a high-speed motor, so the temperature is generally controlled below 80 degrees in summer, and it must be shut down if it exceeds (considering the insulation grade of the insulated coil).

The temperature of the side bearing of the motor is up to 80 degrees in summer, and it depends on the type of grease in your bearing, if it is lithium molybdenum disulfide, the temperature can be up to about 85 degrees, and if it is calcium molybdenum disulfide, the temperature is up to about 75 degrees. Because the high temperature is easy to make molybdenum disulfide lipid into a liquid state, it is extremely dangerous! A lack of oil in the bearing can cause a catastrophe within 10 minutes!

2. AC motor in non-explosion-proof occasions on the ground

4-pole and 6-pole motors, because the motor speed is low, so as long as the bearing is refueled frequently, the temperature can be maintained at 70 degrees, and the bearing temperature exceeds 80 degrees (if it is a motor above 4 poles), it must be short of oil!

Measuring tool: Infrared hand-held thermometer.

Measuring parts: motor surface (the highest temperature near the lifting ring), motor bearing (side bearing cover surface).

3. DC motor:

Because most DC motors have their own cooling fans, the temperature is controlled within 50 degrees, and the maximum is 60 to 65 degrees in summer.

The six motor types include:

1. DC motor (DC motor): DC motor is a common motor that uses the direction and magnitude of current to control the speed and steering.

2. AC motor (AC motor): AC motor is a motor driven by AC power supply. It works by creating a force through an alternating current and a magnetic field that rotates the rotor.

3. Stepper motor: A stepper motor is a motor with a fixed step size, which controls its rotation angle by constantly changing the current.

4. Servo motor: A servo motor is a motor that controls speed and steering through a feedback control system, and is usually used in applications that require precise control, such as robots and CNC machine tools.

5. Induction motor: Induction motor is the most common AC motor, which uses the principle of electromagnetic induction to work, and the electromagnetic induction of the rotor and stator generates force to rotate the rotor.

6. Permanent magnet synchronous motor (permanent magnet synchronous motor): Permanent magnet synchronous motor is a synchronous motor with permanent magnets, which runs synchronously with the power grid and has high efficiency and high power density.

When using the motor, you need to pay attention to the following:

1. Avoid overload: avoid letting the motor run in an overload state for a long time.

2. Avoid overheating: pay attention to the heat dissipation of the motor to avoid damage to the motor due to overheating.

3. Regular maintenance: regularly check the operation of the motor, clean the surface of the motor, and replace the aging parts in time.

4. Correct installation: The installation position of the motor should meet the installation requirements to ensure the normal operation of the motor.

5. Moisture-proof and dust-proof: avoid moisture or dust from entering the motor inside, affecting the service life of the motor. <>

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

Brushless DC motors and brushed DC motors. Brushed DC motors can be divided into: permanent magnet DC motors and electromagnetic DC motors.

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 motor division:

Rare earth permanent magnet DC motors, ferrite permanent magnet DC motors and alnico permanent magnet DC motors. Among them, AC motors can also be divided into: single-phase motors and three-phase motors.

2 According to the structure and working principle: it can be divided into DC motors, asynchronous motors, and synchronous motors.

You go and there are a lot of different classifications according to different criteria.