The pneumatic device is simple in structure, light and easy to install and maintain. The medium is air, which is not easy to burn compared with the hydraulic medium, so it is safe to use.
2, the working medium is inexhaustible air, air itself does not cost money. Exhaust treatment is simple, does not pollute the environment, low cost.
3. The adjustment of output force and working speed is very easy. The operating speed of the cylinder is generally less than 1M/S, which is faster than that of the hydraulic and electrical methods.
4, high reliability, long service life. The number of effective actions of electrical components is about one million times, and the life of the general solenoid valve is more than 30 million times, and some good quality valves are more than 200 million times.
5, the use of air compressibility, can store energy, to achieve centralized gas supply. The energy can be released for a short time to obtain a high-speed response during intermittent movement. Buffering is possible. Strong ability to adapt to impact load and overload. Under certain conditions, the pneumatic device can be self-sustaining.
6, full pneumatic control with fire, explosion-proof, moisture-proof ability. Compared with the hydraulic method, the pneumatic method can be used in high temperature situations. 7, due to the small loss of air flow, compressed air can be centralized supply and long-distance transmission.
Many use occasions of pneumatic components, such as rolling machines, textile lines, etc., can not be interrupted during working hours because of the quality problems of pneumatic components, otherwise it will cause huge losses, so the reliability of pneumatic components is very important. In nautical ships, the use of many pneumatic components, but can enter this field of pneumatic components factory is not many, the reason is that the reliability of the pneumatic components is particularly high, must pass the relevant international machinery certification. To high speed, high frequency, high response, high life direction. In order to improve the production efficiency of the production equipment, it is imperative to improve the working speed of the executive components.
According to experts, after five years, most of the cylinder working speed will be increased to 1~2m/s, and some requirements are up to 5m/s. The increase of cylinder working speed not only requires the quality of the cylinder to be improved, but also the structure should be improved accordingly, such as the configuration of oil pressure shock absorber to increase the buffer effect. The response time of the solenoid valve will be less than 10ms, and the life will be increased to more than 50 million times. There is a gap-sealed valve, because the spool is suspended in the body, not in contact with each other, without lubrication, life of up to 200 million times.
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