伺服机构加注活门泄漏分析及优化  

Leakage Analysis and Optimization of Servo Filling Valve

作　　者：郭瑞 陈荣亮 曾好 梅博 赵琦 杨颢 GUO Rui;CHEN Rong-liang;ZENG Hao;MEI Bo;ZHAO Qi;YANG Hao(Sichuan Aerospace Fenghuo Servo Contorl Technology Corporation,Chengdu 611100,China;The Second Military Representative Office of Rocket Army Equipment Department in Chengdu,Chengdu 611100,China)

机构地区：[1]四川航天烽火伺服控制技术有限公司,四川成都611100 [2]火箭军装备部驻成都地区第二军事代表室,四川成都611100

出　　处：《液压气动与密封》2023年第2期21-26,共6页Hydraulics Pneumatics & Seals

基　　金：成都市科技局重大科技创新项目(2021-YF08-00012-GX)。

摘　　要：基于某液压伺服机构加注活门阀口处有油雾喷出的问题,通过CFD和试验的方法,对加注活门密封部位进行分析和优化。结果表明:该处油液泄漏是由于伺服机构工作过程中的脉动压力以及加注打开关闭过程中,使得原接触线密封部位应力集中发生脉动变化,造成特定情况下阀口崩边,导致密封失效。对加注活门的尖边密封结构进行优化,将阀套阀口处的锐边打钝改为C0.3,在不影响密封性能的条件下,有效改善了原锐边产生的应力集中现象,避免因崩边而造成的泄漏发生。Based on the problem of oil mist ejecting from the filling value of hydraulic servomechanism,through CFD and experimental methods were used to analyze and optimize the filling value seal parts.The result show that oil spilling was caused by the edge collapse caused by the pulsating pressure,which leads to the sealing failure.The tip seal structure of the filling value was optimized which was changed to C0.3.Under the condition of sealing performance,the optimize could effectively improve the stress concentration caused by the sharp edge and avoid the leakage caused by edge collapse.

关 键 词：加注活门 泄漏 密封 应力集中 优化 

分 类 号：TH137.5[机械工程—机械制造及自动化] TB42[一般工业技术]