| Hydraulic press play a very important role in industrial production. Along with the rapid development of iron and steel,automobile, mechanism,electric power, aerospace and other industries, it calls for higher precision and larger tonnage to hydraulic press machine.Today,more and more countries in the world have attached great importance to the development of hydraulic press machine. So, developing the design of hydraulic system research on hydraulic press machine has important theoretical significance and practical application value.According to the related technical parameters, working principle and the performance of hydraulic system of20MN fast sheet forming hydraulic machine requirements, conduct the selection and application of the main components of hydraulic system,designe and determine the major hydraulie circuits, and then complete the design of schematic diagram of hydraulic system, analyse the working rhythm of action sequence and work performance.Use AMESim to establish the model of the key structure of the hydraulic system, complete the entire hydraulic system model simplification and building. By simulated in AMESim, the rsults show that system has certain impact and vibration problems,the reasons are analyzed.In order to improve the performance of impact and vibration of hydraulic system,use relief valve with remote control port to release pressure, the optmized press equipment is modeled and simulated in AMESim again, The results show that the hydraulic system after optimization has greatly improved the impact and vibration problem.Analyse the pressure loss of the hydraulic system of20MN sheet forming hydraulic machine, and carry out the main hydraulic system pressure loss calculation,and put forward the theory and related methods to improve the performance of hydraulic system from the perspective of low carbon. |
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