固定阻尼孔影响水压伺服阀静态特性试验研究  

Experimental Research on the Static Characteristics of Water Hydraulic Servo Valve Caused by Fixed Damp Orifice

作　　者：李如平[1] 聂松林[1] 易孟林[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《中国机械工程》2009年第6期652-656,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50375056;50675074;50775081);国家863高技术研究发展计划资助项目(2006AA09Z238);新世纪优秀人才支持计划资助项目(NCET-07-0330)

摘　　要：以试验研究的方式,分析、探讨了固定阻尼孔对水压伺服阀静态特性的影响,这些特性主要包括水压伺服阀的零位泄漏特性、空载流量特性、负载流量特性和压力特性等。试验结果表明:两级固定阻尼孔直径相差不大时,水压伺服阀静态特性较好;固定阻尼孔的加工误差导致阻尼特性不对称,并导致水压伺服阀静态特性对称性变差。With experimental research method, this paper investigated the effects about static characteristics of water hydraulic servo valve caused by fixed damper orifice,the static characteristics including mainly interior leakage characteristics on zero location, non-loading flux characteristics, loading flux characteristics and pressure characteristics etc. The experimental result is that static characteristics of water hydraulic servo valve is nice when the diameters of the two stage fixed damper orifices are similar. The machining error of fixed damper orifices will make damp characteristics non-symmetry,it will also change the symmetry of water hydraulic servo valve worse.

关 键 词：水压伺服阀 固定阻尼孔 静态特性 试验研究 

分 类 号：TH137[机械工程—机械制造及自动化]