Analyse et solution de la défaillance de la vanne proportionnelle de la presse hydraulique
hydraulic press machine 150 ton, with the rapid development of my country’s manufacturing industry and the continuous updating of hydraulic control component technology, hydraulic leather press, people have higher and higher requirements for the controllability of hydraulic equipment. The proportional valve is the main power amplifier element in the proportional control system. It can continuously and proportionally control the pressure, speed, and direction of the actuator according to the input electrical signal command, which greatly promotes the controllability of hydraulic equipment. Proportional valves have better static and dynamic characteristics, which are between conventional on-off valves and closed-loop servo valves: Compared with conventional on-off valves, proportional valves have faster response speed and more precise control, which can overcome some conventional on-off valves. Hydraulic press machine 150 ton, The defect is called; Compared with the closed-loop servo valve, the proportional valve has low cost, high-cost performance, and stronger anti-pollution ability, which can greatly reduce the working failure caused by oil pollution and improve the working stability and reliability of the hydraulic system. Therefore, proportional valves have been used more and more widely in hydraulic control engineering.
Distribution law of energy consumption of forging hydraulic press
Aiming at the problems of high energy consumption and low energy utilization of forging hydraulic presses, the distribution law of energy consumption under normal production conditions was studied. hydraulic leather press taking the 16 MN valve-controlled forging hydraulic press as the research object, using AMESim to establish its simulation model, and verifying the correctness of the simulation model through the displacement pressure simulation curve. Based on the simulation model, a simulation study of the energy utilization of the forging hydraulic press in a working cycle is carried out. Obtain the law of energy consumption distribution. The simulation results show that: under the normal production conditions of the valve-controlled forging hydraulic press, the useful work of the load accounts for less than 10% of the entire energy consumption, and the overflow energy consumption and throttling energy consumption cause huge energy losses in the system. Hydraulic press machine 150 ton, Improving hydraulic system design, and controlling the opening law of hydraulic system valves can increase the energy utilization rate of the press.
