摘要
用伺服比例阀取代A4VSO电液比例泵的变量控制系统中的伺服阀或比例阀,合理选取了关键的电液元件,构建了A4VSO电液比例泵的变量控制系统,并在不同的压力下,进行了泵排量和流量的性能测试。试验结果表明:采用伺服比例阀控制的变量控制系统,控制精度高,可靠性高,可使泵的排量、流量分别与控制信号保持良好的比例关系。
An adjustment system regulated by servo-proportional valve for electro-hydraulic proportional variable displacement pump A4VSO is established and studied in this paper.The servo-proportional valve replaces traditional servo valve or proportional valve in the adjustment system,meanwhile some important electro-hydraulic components are chosen properly.The pump performance tests about displacement and output flow are made under different pressures.Experimental results indicate that the adjustment system controlled by servo-proportional valve is characterized with higher precision and higher reliability,which enables the displacement and output flow of pump A4VSO to maintain proportional to the control signal respectively.
出处
《机械科学与技术》
CSCD
北大核心
2011年第9期1456-1459,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
江苏省研究生创新计划项目(CX10B1135Z)
中国矿业大学青年科研基金项目(2009A015)资助
关键词
A4VSO电液比例泵
伺服比例阀
变量系统
electro-hydraulic proportional variable displacement pump A4VSO
servo-proportional valve
adjustment system
