摘要
通过仿真分析,研究液压滑阀阀芯在不开均压槽、开3条矩形槽、开5条矩形槽、开5条三角形槽4种情况下,阀芯歪斜时阀芯卡紧力的变化。由仿真结果可知:阀芯歪斜时,在阀芯上开均压槽可以有效减小卡紧力,开的均压槽越多,卡紧力越小;开相同数量的矩形槽比三角槽的卡紧力大,但是更利于使阀芯趋于同心。
Through simulation and analysis, the changes in clamping force of the hydraulic slide-valve spool when the spool skewed were studied, with no pressure-equalizing grooves, three rectangular grooves, five rectangular grooves and five triangular grooves. The simulation results show ： opening pressure-equalizing grooves in the valve can reduce clamping force ; the more pressure- equalizing grooves open, the smaller the clamping force becomes. With the same amount, clamping force of spool with rectangular grooves is larger than that with triangle grooves, but the spool with rectangular grooves is more conducive to become concentric.
出处
《机床与液压》
北大核心
2011年第15期113-115,143,共4页
Machine Tool & Hydraulics
关键词
均压槽
卡紧力
阀芯
Pressure-equalizing groove
Clamping force
Valve spool
