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What is the transmission medium of the hydraulic system? What are its characteristics?
2021-11-09
Hydraulic system is a commonly used transmission system, which transmits energy and signals through fluids to achieve the purpose of movement and control. The hydraulic transmission system is an important hydraulic system, and its transmission medium is fluid, including hydraulic oil and hydraulic water. In this paper, we will analyze the transmission medium of the hydraulic system from two aspects of media selection and characteristics. Next, Guorui hydraulic editorial to take a look at it.
First, the media selection
Hydraulic system media selection must meet the following conditions:
1. Stability: hydraulic media must have a stable service life and high thermal stability;
2. moderate viscosity: the viscosity of the hydraulic medium must be stable within a certain range to ensure the normal operation of the system;
3. Good sealing: hydraulic media must have good compatibility with the system's seals to prevent seal leakage;
4. Low volatility: hydraulic media must have low volatility to ensure that the system does not fail for a long time;
5. good heat transfer: hydraulic media should have good heat transfer and heat capacity, in order to reduce the temperature rise of the system and maintain temperature stability.
Second, the characteristics
Hydraulic system transmission medium has the following characteristics:
1. Good fluidity: hydraulic medium can be pumped to the executive element, its flow rate and flow can be freely controlled;
2. Volume elasticity: when the hydraulic medium in the pipeline under pressure, its volume is not easy to change, can improve the control accuracy of the system;
3. High transfer efficiency: the transmission efficiency of the hydraulic system is high, can reach more than 90%, is more than twice the electrical transmission;
4. Low noise: the hydraulic medium has a good damping effect, low noise and is not easily disturbed by the environment;
5. Strong adaptability: the pressure and flow of hydraulic media can be easily adjusted and controlled, a wide range of adaptability.
The above is the Guorui hydraulic editor for you to organize the relevant content, I hope to help you. The transmission medium of the hydraulic system is fluid, which has good stability, moderate viscosity, good sealing, low volatility and good heat transfer characteristics. It has the advantages of good fluidity, volumetric elasticity, high transfer efficiency, low noise and adaptability, so that the hydraulic system has a common application in the engineering field. Therefore, it is very important to choose and manage the medium for the hydraulic system.
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