三级电液伺服阀稳定性及其对系统的影响  

The Stability of 3-Stage Electro-hydraulic Servo Valve and Its Influences on System

作　　者：文广[1] 梁民勤 张智鹏[1] 许益民[1] 

机构地区：[1]武汉科技大学机械自动化学院,武汉430081 [2]柳州钢铁(集团)公司冷轧板带厂,广西柳州545002

出　　处：《机床与液压》2008年第7期113-115,共3页Machine Tool & Hydraulics

摘　　要：指出三级电液伺服阀及其所在系统的不稳定现象并进行分析,通过对三级电液伺服阀的结构原理分析,从伺服放大器、先导级和主阀这3个部分讨论了影响三级电液伺服阀稳定性的主要因素,重点分析了三级电液伺服阀先导级小球磨损对稳定性的影响,对理解、维护三级电液伺服阀及电液控制系统有指导意义。The instability of the 3-stage electro-hydraulic servo valve and its system was analyzed. Based on the structure of the 3-stage electro-hydraulic servo valve, the main factors that influence the stability of the 3-stage electro-hydraulic servo valve were discussed from servo amplifier, forerunner level and main valve. The influence of the abrasion of forerunner level spherule on the stability of valve was analyzed.

关 键 词：三级电液伺服阀 稳定性 小球磨损 

分 类 号：TH137.532[机械工程—机械制造及自动化]