Transactions of Materials and Heat Treatment

Title：Design and simulation on hydraulic system for pump-controlled forging hydraulic press

Authors： Wu Chengxing1 Lu Miao2 Zhang Chaozhuang2 Chen Baijin2

Unit： 1.School of Advanced Manufacturing Nanchang University 2.State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology

KeyWords： surface modification coating high-temperature wear preparation method property index

ClassificationCode：TG315

year,vol(issue):pagenumber：2022,47(6):160-168

Abstract：

For the technical status of traditional 22 MN pump-controlled forging hydraulic press unit with complex control system, poor stability in operation process and slow response speed, the composition structure, transmission mode and motion characteristics of components for pump-controlled forging hydraulic press unit were studied. Then, the variable mechanism model of sinusoidal pump with eccentric pendulum was established by software AMESim, and the control performance and dynamic response characteristics of the eccentric pendulum variable mechanism were simulated and analyzed. Furthermore, the hydraulic servo control system model of forging hydraulic press was established, and the dynamic characteristics of press under four different operating conditions of no-load, upsetting, normal forging and quick forging were simulated and analyzed. The simulation results show that the eccentric pendulum variable mechanism is designed reasonably and has high control performance, which can meet the actual production demand of high frequency quick commutation and larger driving force with small displacement. Thus, the hydraulic servo control system of hydraulic press has high control precision, stable operation, fast response speed, small throttle and overflow loss and high energy utilization rate.

Funds：

伍乘星（1991-），男，博士，讲师 E-mail：15171457445@163.com 通信作者：陈柏金（1965-），男，博士，教授 E-mail：chenbaijin@hust.edu.cn

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