摘要
液压系统的执行部件液压缸在长期使用过程中出现漏油故障,通过对密封圈进行密封原理分析、密封结构分析、O形橡胶密封圈有限元仿真分析、试验验证等方式,得出静密封结构渗漏油的原因,并根据密封失效原因提出解决措施。结果表明:液压系统O形圈静密封结构在低温下密封圈压缩率会减小,出现密封失效;通过增大O形橡胶密封圈截面直径可有效提高低温下压缩率,进而改进漏油故障,为同类型产品的渗漏故障提供参考作用。
The hydraulic cylinder,the executive part of the hydraulic system,appears oil leakage fault in the long-term use process.Through the sealing principle analysis,sealing structure analysis,finite element simulation analysis of the O-shaped rubber sealing ring,low temperature test verification and other ways,the reason of oil leakage failure of the static sealing structure is obtained.And according to the reason of seal failure,the solution measures are studied.The results show that the compression rate of the O-ring static seal structure of the hydraulic system will decrease at low temperature,resulting in sealing failure.By increasing the cross section diameter of the O-ring,the compression rate at low temperature can be effectively improved,thus improving the oil leakage fault.,to provide reference for the leakage fault of the same type of products..
作者
祖挥程
王舒
何磊
ZU Hui-cheng;WANG Shu;HE Lei(State-owned Wuhu Machinery Factory,Mechanical and Electronic Department,Anhui Wuhu 241007,China)
出处
《失效分析与预防》
2021年第6期412-416,共5页
Failure Analysis and Prevention
关键词
静密封
渗漏油
密封失效
O形橡胶密封圈
低温试验验证
static seal
oil leakage
seal failure
O-type rubber sealing ring
low temperature test verification
