Transactions of Materials and Heat Treatment

Title：Research on opening fault characteristic for allocation water valve with high pressure and large flow capacity in large hydraulic press

Authors： Sun Kang Wu Xin Chen Hui Deng Jujun

Unit： Jiangxi University of Science and Technology

KeyWords： hydraulic press opening fault lag validity

ClassificationCode：

year,vol(issue):pagenumber：2014,39(10):103-107

Abstract：

The opening fault characteristic of allocation water valve with high pressure and large flow capacity in large hydraulic press was researched. Firstly, the mechanism of opening fault characteristic of allocation water valve with high pressure and large flow capacity in large hydraulic press was analyzed, and then problems in opening fault were studied systematically. Further, the effects of various factors on the water valve opening fault were studied, such as operation system pressure, water valves leakage, and parameters of opening cam mechanism. The mechanism of its dynamic mathematical model was established, the AMEsim model which is integrated with large hydraulic press and electromechanical liquid was created by multidisciplinary method and the opening fault of high pressure and large flow water valve was analyzed deeply through the numerical simulation. The simulation result shows that the main factors leading to the opening fault of water valve are the overloaded open driving load and incompetent opening executive capability. It is stated that water valve can not be opened or be opened with lagging under the condition of opening fault. The result is in accordance with the practical experience, which proves the validity of this study.

Funds：

国家科技重大专项资助项目（2009ZX04005-031）；国家重点实验室开放基金（GZKF-201023）；江西省自然科学基金资助项目（20122BAB206030）

孙康（1977- ），男，博士，副教授

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