起重机液压系统压力阀的密封设计  

The sealing design of pressure valves of the crane hydraulic system

作　　者：肖泽民 

机构地区：[1]中国中铁三局第二工程有限公司,河北050031

出　　处：《起重运输机械》2015年第6期22-26,共5页Hoisting and Conveying Machinery

摘　　要：针对某起重机液压系统中压力阀如何实现多次、长效、可靠密封的问题,提出一种具备密封冗余效果的双端面密封形式,并对密封力、密封圈压缩率与密封性能的关系进行了研究,获取了不同密封力及不同密封圈压缩率条件下的密封性能,不仅为压力阀的密封设计提供了有效的数据支持,也为类似密封结构形式的产品设计提供了参考。To figure out how to realize repeated,effective,and reliable sealing of the pressure valve in certain crane hydraulic system,the paper puts forward a double-end face seal with the sealing redundancy effect,analyzes the relationship between the sealing force,compression ratio of the seal ring,and sealing properties,and gets the sealing performance under different sealing forces and compression ratio of the seal ring. All these efforts provide effective data for the sealing design of the pressure valve,and reference for designing products of similar sealing structures.

关 键 词：压力阀 密封性能 液压系统 起重机 

分 类 号：TH21[机械工程—机械制造及自动化]