Transactions of Materials and Heat Treatment

Title：Analyzing and handling of cavitation erosion of hydraulic pumps for HPP4000 hydraulic press

Authors： Wang Jiansheng

Unit： CITIC Dicastal Co. Ltd.

KeyWords： cavitation erosion hydraulic pumps port plate plunger cylinder

ClassificationCode：TG315

year,vol(issue):pagenumber：2014,39(3):82-86

Abstract：

Cavitation erosion is the most common fault phenomenon whose hazard is very serious for hydraulic system. Aiming at the cavitation erosion of HPP4000 hydraulic press, the flake pitting and small pit appearing in the port plate of hydraulic pump caused by cavitation erosion and the material peeling off phenomenon appearing in the plunger cylinder were analyzed. The reason of cavitation erosion was design defects of oil tank. By analyzing the inhaling empty problem, the movment sequence of this press and the design features of oil tank structure of hydraulic system, the methods of structure improvement of oil tank and drainage pipe adjustment of main pump were put forward. The practice proves that the method can play a definite role in hydraulic system design.

Funds：

Reference：

［1］雷天觉. 新编液压工程手册[M].北京：北京理工大学出版社，1998.Lei Tianjue. New Edition of Hydraulic Engineer Manual[M]. Beijing:Beijing Institute of Technology Press, 1998.
［2］符俊华. 液压系统的气穴及其防止方法[J].矿山机械，1999,（11）：21-23.Fu Junhua, Cavitation erosion and preventing methods of hydraulic system[J]. Mining & Processing Equipment, 1999, (11)：21-23.
［3］蒋婷婷，谭建平，司玉校，等. 高压大流量液压系统卸荷规律实验研究[J]. 锻压技术，2012, 37（5）：80-83.Jiang Tingting, Tan Jianping, Si Yuxiao,et al. Experimental study of the relief pattern of high pressure large volume hydraulic system[J]. Forging & Stamping Technology, 2012,37(5)：80-83.
［4］张强. 浅谈液压系统的故障分析[J].流体传动与控制，2006,（1）：41-42.Zhang Qiang. Preliminary discussion on the fault analysis of hydraulic system[J]. Fluid Power Transmission and Control, 2006,(1)：41-42.
［5］支剑锋. 工程机械液压阀的气蚀及其对策[J].机床与液压，2008,36（7）：168-169.Zhi Jianfeng. The cavitation erosion and countermeasures of hydraulic valves of engineering machinery[J]. Machine Tool & Hydraulics, 2008,36(7)：168-169.

Service：

【This site has not yet opened Download Service】【Add Favorite】