Transactions of Materials and Heat Treatment

Title：Research on energy-saving direct-drive pump-controlled servo hydraulic

Authors： Zheng Hongbo Sun Yousong Li Shaopei Li Xinzhong

Unit： Guangdong Institute of Science and Technology Guangdong University of Technology Guangdong Hongxing Machinery Co. Ltd.

KeyWords： pump-controlled hydraulic press servo motor energy consumption

ClassificationCode：

year,vol(issue):pagenumber：2014,39(1):79-85

Abstract：

A solution was proposed to reform the traditional hydraulic press by the technology of pump-controlled servo hydraulic press. As the power unit the traditional induction motor + fixed displacement pump was replaced by permanent magnet synchronous servo motor plus fixed displacement pump; the electromagnetic reversing system, the rapid cylinder system and the filling liquid system were kept; the displacement sensors, pressure sensors and a proportional relief valve were added to the hydraulic press. The mathematical model for pump-controlled servo hydraulic press was established, and the drawing technology was taken as an example to analyze the stamping energy consumption. A conclusion is drawn that the main reasons for energy saving are that the permanent magnet synchronous servo motor has high efficiency and power factor, and the overflow loss and the standby loss are decreased. The experiment indicates that in the same conditions the hydraulic press reaches more than 20% energy saving effect compared to the traditional hydraulic press and has higher power factor.

Funds：

粤港关键领域重点突破招标项目（20092019）

郑洪波（1970-），男，博士，高级工程师

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