力士乐REXROTH液压比例阀功能选择

电液比例阀是阀内比例电磁铁根据输入的电压信号产生相应动作，使工作阀阀芯产生位移，阀口尺寸发生改变并以此完成与输入电压成比例的压力、流量输出的元件。
阀芯位移也可以以机械、液压或电的形式进行反馈。由于电液比例阀具有形式种类多样、容易组成电气及计算机控制的各种电液系统、控制精度高、安装灵活以及抗污染能力强等多方面，因此应用领域日益拓宽。近年研发的插装式比例阀和比例多路阀充分考虑到工程机械的特点，具有导控制、负载传感和压力补偿等功能。它的出现对移动式液压机械整体技术水平的提升具有重要意义。特别是在电控导操作、无线遥控和有线遥控操作等方面展现了其良好的应用前景。
在每个出油孔上再安上接流阀，调节节流阀的开口大小来控制各出油口的出油量。如有三个出口，就可调节它们的出油量为1:2:3。（可为任意比例）因此就叫做比例阀。

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力士乐REXROTH液压比例阀功能选择