一种2D电液比例阀的设计与静态特性实验研究
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摘要
设计了一种采用小推力的比例电磁铁作为电-机械转化器,压扭联轴器作为传动机构,且具有阀芯位置反馈功能的2D电液比例阀。在分析该阀结构和工作原理的基础上,对该阀的压扭联轴器输入输出特性和阀的空载流量特性进行了实验研究。结果表明:该阀的压扭联轴器位移滞环约为7.4%;在系统压力为21 MPa时,该阀的流量滞环约为5.7%,说明该2D电液比例阀具有良好的比例特性。
A 2 dimensional( 2D) electro-hydraulic proportional valve was designed,which used a small thrust proportional electromagnet as electro-mechanical converter,the pressure torsion coupling as transmission actuator,and had spool position feedback function. Based on the analysis of the valve structure and working principle,the no-load valve flow characteristics and the characteristics of the input and output characteristics of the pressure torsion coupling were studied experimentally. The results show that displacement hysteresis loop of pressure torsion coupling of the valve is about 7. 4%. When the system pressure is at 21 MPa,the flow of the valve hysteresis loop is about 5. 4 %,indicating that the 2D electro-hydraulic proportional valve has a good proportional feature.
A 2 dimensional( 2D) electro-hydraulic proportional valve was designed,which used a small thrust proportional electromagnet as electro-mechanical converter,the pressure torsion coupling as transmission actuator,and had spool position feedback function. Based on the analysis of the valve structure and working principle,the no-load valve flow characteristics and the characteristics of the input and output characteristics of the pressure torsion coupling were studied experimentally. The results show that displacement hysteresis loop of pressure torsion coupling of the valve is about 7. 4%. When the system pressure is at 21 MPa,the flow of the valve hysteresis loop is about 5. 4 %,indicating that the 2D electro-hydraulic proportional valve has a good proportional feature.
引文
[1]杨逢瑜.电液伺服与电液比例控制技术[M].北京:清华大学出版社,2009.
[2]宋宗南,许小庆,王超.新型比例阀用动磁铁式电机机械转换器输出特性分析[J].2014(3):105-108.SONG Zongnan,XU Xiaoqing,WANG Chao.The Output Characteristics of Moving Magnet Electro-mechanical Transformer Used in Valve[J].Chinese Hydraulics and Penumatics,2014(3):105-108.
[3]杨萍,宋述稳,徐先懂.高压大流量电液比例阀性能测试系统研制[J].液压与气动,2009(5):30-32.YANG Ping,SONG Shuwen,XU Xiandong.Development of the Characteristic Test System for High Pressure and Large Flow Electro-hydraulic Proportional Valves[J].Chinese Hydraulics and Penumatics,2009(5):30-32.
[4]孙瑞辉.双头比例电磁铁的仿真与试验研究[D].秦皇岛:燕山大学,2010.
[5]易际研,李胜,阮健.2D数字伺服阀的频率特性研究[J].机床与液压,2009,37(11):67-70.YI Jiyan,LI Shen,RUAN Jian.Frequency Response of 2D Digital Servo Valve[J].Machine Tool and Hydraulics,2009,37(11):67-70.
[6]谈宏华,滕达.基于气动系统的电液比例阀监控装置的设计[J].液压与气动,2010(6):34-36.TAN Honghua,TENG Da.The Design of Electro-hydraulic Proportional Valve Monitoring Device Based on Pneumatic System[J].Chinese Hydraulics and Penumatics,2010(6):34-36.
[7]励伟.大流量2D电液比例换向阀的设计及研究[D].杭州:浙江工业大学,2013.
[8]吕敏健.2D电液比例换向(节流)阀原理研究[D].杭州:浙江工业大学,2012."
[2]宋宗南,许小庆,王超.新型比例阀用动磁铁式电机机械转换器输出特性分析[J].2014(3):105-108.SONG Zongnan,XU Xiaoqing,WANG Chao.The Output Characteristics of Moving Magnet Electro-mechanical Transformer Used in Valve[J].Chinese Hydraulics and Penumatics,2014(3):105-108.
[3]杨萍,宋述稳,徐先懂.高压大流量电液比例阀性能测试系统研制[J].液压与气动,2009(5):30-32.YANG Ping,SONG Shuwen,XU Xiandong.Development of the Characteristic Test System for High Pressure and Large Flow Electro-hydraulic Proportional Valves[J].Chinese Hydraulics and Penumatics,2009(5):30-32.
[4]孙瑞辉.双头比例电磁铁的仿真与试验研究[D].秦皇岛:燕山大学,2010.
[5]易际研,李胜,阮健.2D数字伺服阀的频率特性研究[J].机床与液压,2009,37(11):67-70.YI Jiyan,LI Shen,RUAN Jian.Frequency Response of 2D Digital Servo Valve[J].Machine Tool and Hydraulics,2009,37(11):67-70.
[6]谈宏华,滕达.基于气动系统的电液比例阀监控装置的设计[J].液压与气动,2010(6):34-36.TAN Honghua,TENG Da.The Design of Electro-hydraulic Proportional Valve Monitoring Device Based on Pneumatic System[J].Chinese Hydraulics and Penumatics,2010(6):34-36.
[7]励伟.大流量2D电液比例换向阀的设计及研究[D].杭州:浙江工业大学,2013.
[8]吕敏健.2D电液比例换向(节流)阀原理研究[D].杭州:浙江工业大学,2012."