Transactions of Materials and Heat Treatment

Title：Research on digital on-line stress monitoring system of main columns in hydraulic press

Authors： GONG Jin-li TAN Jian-ping CHEN Hui

Unit： Central South University

KeyWords： hydraulic press column stress detecting on-line monitoring system

ClassificationCode：TG316.8

year,vol(issue):pagenumber：2010,35(4):81-85

Abstract：

The status quo and problems of the traditional stress monitoring system of the main columns in the hydraulic press were analyzed and a new method for high precision and digital on-line stress monitoring system of the main columns in the hydraulic press which based on the micro-displacement sensors and bus communication technology was proposed. By detecting the micro-displacement of the columns when loaded, the system could calculate the column stress effectively. The PLC was used to process the multi-point stress data and the PC was used to monitor the column stress. The experimental test and actual running on the 300 MN die forging hydraulic press shows that the system has high detection precision, strong anti-interference and good stability. It can realize the on-line monitoring under the bad environment of the industrial site.

Funds：

国家高技术研究发展计划(863计划)资助项目(2007AA04Z417)；国家重大科技专项（2009ZX04005-031)

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