锻压技术

200 kN锻造操作机系统压力异常的原因分析

英文标题：Analysis of the abnormal system pressure of 200 kN forging manipulator

作者：翟富刚孔祥东

单位：燕山大学

分类号：

出版年,卷(期):页码：2014,39(7):77-81

摘要：

国内某厂关键设备200 kN锻造操作机在使用过程中出现了油温升高过快的现象，经现场测试发现其系统压力出现了明显异常情况。针对此问题，分析了200 kN锻造操作机工作原理，通过理论计算方法确定了系统压力油走向，进一步研究找到了系统压力异常变化的原因。分析研究结果表明，密封圈损坏导致的缓冲缸内泄漏量增大是引起200 kN锻造操作机系统压力变化的根本原因，而密封圈损坏和缓冲缸密封型式选用不合理有着直接关系。

Because of the temperature of hydraulic oil rose quickly when using the 200 kN forging manipulator in a domestic factory, the abnormal pressure of system was found after testing. To solve this problem, the working principle of 200 kN forging manipulator was analyzed, the direction of system hydraulic oil was confirmed by theoretical calculations, and reasons of abnormal pressure changing were further found. The results show that the main reason of pressure changing in the system is the increasing of internal leakage rate of cushion cylinder caused by seal damage. And the seal damage is related to the wrong choose of cushion cylinder seal type.

基金项目：

国家科技重大专项资助项目“高档数控机床与基础制造装备”（2010ZX04013-021）；秦皇岛市科学技术研究与发展计划项目（201302A035）

翟富刚（1979-），男，博士，讲师

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