The air motor is a prime mover with compressed air as the working medium, and it is a power device that converts pressure energy into mechanical energy by the expansion of compressed gas.
1. It can be stepless speed regulation. By controlling the opening of the intake or exhaust valve, i.e. controlling the flow of compressed air, the output power and speed of the motor can be adjusted. The purpose of adjusting the speed and power can be achieved.
2. It can be reversed or forward. Most air motors can simply use the control valve to change the direction of the motor inlet and exhaust, that is, the forward and reverse rotation of the air motor output shaft, and can be instantaneously reversed. In the case of forward and reverse conversions, the impact is minimal. A major advantage of the commutation operation of the air motor is its ability to ramp up to full speed almost instantaneously. The vane air motor can be ramped up to full speed in one and a half seconds; The piston air motor can be ramped up to full speed in less than a second. By changing the direction of the air intake by using the control valve, the forward and reverse rotation can be realized. The time to achieve forward and reverse rotation is short, the speed is fast, the impact is small, and there is no need to unload the load.
3. Work safety, not affected by vibration, high temperature, electromagnetism, radiation, etc., suitable for harsh working environment, can work normally under flammable, explosive, high temperature, vibration, humidity, dust and other unfavorable conditions.
4. There is overload protection function, and the failure will not occur due to overload. When overloaded, the motor only slows down or stops, and when the overload is lifted, it can immediately resume normal operation without causing failure such as damage to the machine. It can run continuously at full load for a long time, and the temperature rise is small.
5. It has a high starting torque, and can be started directly with load. Start and stop quickly. Can be started with load. Start and stop quickly.
6. Wide range of power range and speed. The power can be as small as a few hundred watts and as large as tens of thousands of watts; The rotational speed can go from zero to 10,000 revolutions per minute.
7. Easy to operate, easy to maintain and overhaul The air motor has simple structure, small size, light weight, high horsepower, easy operation and easy maintenance.
8. Use air as a medium, there is no difficulty in supply, the used air does not need to be treated, and there is no pollution in the atmosphere Compressed air can be supplied centrally and transported over long distances
Due to the above characteristics, the air motor can work in harsh environments such as humidity, high temperature, and high dust. In addition to being used as a power source in rock drilling, drilling, loading and other equipment in mining machinery, it is also widely used in shipbuilding, metallurgy, chemical industry, paper making and other industries.
Compared with the motor that plays the same role as it, the motor is characterized by a light shell and easy transportation; And because its working medium is air, there is no need to worry about causing fire; When the air motor is overloaded, it automatically stops and maintains a balanced state with the supply pressure. Due to the above characteristics, air motors are widely used in mining machinery, flammable and explosive liquids and pneumatic tools.