Hydraulic system reliability is very important
Release time:
2024-03-26
Sometimes the pressure of the hydraulic system will suddenly drop automatically, and then slowly return to the large value, which is the so-called pressure fluctuation. The main reason is that the oil is mixed with air when the oil is added or stirred, and the precipitated impurities are stirred up. Since various impurities such as iron filings, abrasives, dust and other dirt will enter the system before use during the processing and transportation of various components and pipelines of the hydraulic station, all valves, oil pipes and oil tanks should be fine cleaned before use of the hydraulic station, and the oil pipes should be cleaned by pickling. The selection and correct use of hydraulic oil, hydraulic oil filtration and other aspects of management, to improve the safety of the hoist braking system, reliability is very important, that is, the correct maintenance and maintenance of the hydraulic station.
The working pressure of the hydraulic system depends on the size of the load. The total load received by the actuator, that is, the total resistance package includes the working load, the frictional resistance generated by the actuator due to its own weight and mechanical friction, and the resistance and local resistance generated by the oil flow in the pipeline. Due to the load, the flow is hindered and a certain pressure is generated, and the greater the load, the higher the oil pressure, but the high working pressure has certain restrictions. Hydraulic station manufacturers take you to know more!
In order to make the system maintain a certain working pressure, or work within a certain pressure range, or can work under several different pressures, it is necessary to adjust and control the pressure of the whole system. The pressure regulating circuit is adopted to meet the pressure regulating requirements of the system. In the quantitative pump system, the oil pressure of the hydraulic pump is regulated by the relief valve. In the variable pump system, the safety valve is used to limit the high pressure of the system to prevent the system from overloading. When the system needs more than two kinds of pressure, multi-stage pressure regulating circuit can be used. A complete hydraulic system consists of five parts, namely, power components, the implementation of components, control components, auxiliary components and working medium. The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the liquid. Power element refers to the hydraulic pump in the hydraulic system, which provides power to the entire hydraulic system. The structure of the hydraulic pump is generally gear pump, vane pump, plunger pump, screw pump.
2024-03-26
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