液压与气动Issue(5)：69-73,5.DOI:10.11832/j.issn.1000-4858.2018.05.012
PQ控制变量泵比例换向阀参数对压力特性的影响仿真研究
Simulation Research on Influence of Proportional Reversing Valve Parameters on Pressure Characteristics in PQ Variable Control Pump
摘要
Abstract
Aimed at an electro-hydraulic proportional axial variable piston pump with pressure and flow control,its entire model is built by AMESim.Pressure characteristics of the variable pump are researched by simulation,and the influence on pressure characteristics of pump is studied in particular when parameters of electro-hydraulic proportional reversing valve are changed.The simulation reveals that the larger we set the value of spring stiffness and spring prestressing force in electro-hydraulic proportional reversing valve,the larger the steady values of output pressure in variable pump will be;on the basis of avoiding the mass of proportional reversing valve being too small,we try to reduce the mass and select proper diameters of valve and damping hole,which can decrease output pressure overshoot and improve working quality of variable pump.关键词
PQ控制变量泵/比例换向阀/压力特性/AMESim仿真Key words
PQ variable control pump/proportional reversing valve/pressure characteristics/AMESim simulation分类
机械制造引用本文复制引用
王慧,张长帅,孟凡龙..PQ控制变量泵比例换向阀参数对压力特性的影响仿真研究[J].液压与气动,2018,(5):69-73,5.基金项目
辽宁省自然科学基金(20102184) （20102184）
