一种力反馈式电液压力伺服阀  

A New Force Feedback Pressure Servo-valve

作　　者：宗满意 杨宗阳 ZONG Man-yi;YANG Zong-yang(AVIC Nanjing Servo Control System Co.,Ltd.,Nanjing 210061,China;Aviation Key Laboratory of Science and Technology Aero Electromechanical System Integration,Nanjing Engineering Institute of Aircraft System,Nanjing 210061,China;Military Representative from Army Aviation Military Representative Bureau Stationed in Nanjing Region,Nanjing 210061,China)

机构地区：[1]中航工业南京伺服控制系统有限公司,江苏南京210061 [2]航空工业南京机电液压工程研究中心航空机电系统综合航空科技重点实验室,江苏南京210061 [3]陆军航空兵军事代表局驻南京地区军事代表,江苏南京210061

出　　处：《液压气动与密封》2020年第11期93-96,共4页Hydraulics Pneumatics & Seals

摘　　要：电液压力伺服阀一般采用阀芯压力反馈或电反馈的反馈形式。根据喷嘴挡板式力反馈式电液流量伺服阀的特点,通过加大负重叠量,设计了使用反馈杆将阀芯位置力反馈至挡板的电液压力伺服阀。理论分析及仿真结果表明其输出压力与输入电信号呈线性关系,且负重叠越大,线性区间越大,在此基础上进行了试验验证,试验结果与仿真结果基本一致。力反馈式电液压力伺服阀动态特性高、工艺性好、滑阀级内漏可接受。可以作为电液压力伺服阀使用。The feedback of pressure servo-valve is normally pressure feedback on spool or electrical feedback by sensor.Base on the single output nozzle-flapper force feedback Electro-hydraulic flow servo-valve,designs a new force feedback pressure servo-valve by enlarge the underlap,using a rod feedback the position of the spool to the flapper by force.Theoretical and simulation analysis results indicate a linear relationship between the output pressure and the input current of valve,and the greater the underlap the larger the linear interval.The valve also has the characteristics of high dynamic,good process and acceptable leakage,can be used as Pressure Servo-valve.

关 键 词：压力伺服阀 力反馈 负重叠 

分 类 号：TH137[机械工程—机械制造及自动化]