联系人: QQ:2277643779 (小崔)
但是,由于液压马达和液压泵的工作条件不同,对它们的性能要求也不一样,所以同类型的液压马达和液压泵之间,仍存在许多差别。首先液压马达应能够正、反转,因而要求其内部结构对称;液压马达的转速范围需要足够大,特别对它的低稳定转速有一定的要求。因此,它通常都采用滚动轴承或静压滑动轴承;其次液压马达由于在输入压力油条件下工作,因而不必具备自吸能力,但需要一定的初始密封性,才能提供必要的起动转矩。由于存在着这些差别,使得液压马达和液压泵在结构上比较相似,但不能可逆工作。
c先导型溢流阀:主阀弹簧主要用于克服阀芯的摩擦力,弹簧刚度小。当溢流量变化引起主阀弹簧压缩量变化时,弹簧力变化较小,因此阀进口压力变化也较小。调压精度高,广泛应用于高压、大流量系统。 溢流阀的阀芯在移动过程中要受到摩擦力的作用,阀口开大和关小时的摩擦力方向刚好相反,使溢流阀开启时的特性与关闭时的特性产生差异。
MOOG:穆格
穆格伺服阀由永磁力矩马达、喷嘴、档板、阀芯、阀套和控制腔组成。当输入线圈通入电流伺服阀时,档板向右移动,使右边喷嘴的节流作用加强,流量减少,右侧背压上升;同时使左边喷嘴节流作用减小,流量增加,左侧背压下降。阀芯两端的作用力失去平衡,阀芯遂向左移动。高压油从S流向C2,送到负载。负载回油通过 C1流过回油口,进入油箱。阀芯的位移量与力矩马达的输入电流成正比,作用在阀芯上的液压力与弹簧力相平衡,因此在平衡状态下力矩马达的差动电流与阀芯的位移成正比。如果输入的电流反向,则流量也反向。
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诺冠现货 | E/809080/10X/B25/STROKE |
诺冠现货 | E/809080/10X/DNA |
诺冠现货 | E/809080/10X/DNA/STROKE |
诺冠现货 | E/809080/10X/DNB |
诺冠现货 | E/809080/10X/DNB/STROKE |
诺冠现货 | E/809080/10X/DNM |
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诺冠现货 | E/809080/10X/DNN |
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诺冠现货 | E/809080/10X/DRA |
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诺冠现货 | E/809080/10X/DRB |
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诺冠现货 | E/809080/10X/DRM |
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诺冠现货 | E/809080/10X/DRN |
诺冠现货 | E/809080/10X/DRN/STROKE |
诺冠现货 | E/809080/10X/DX1 |
诺冠现货 | E/809080/10X/DX1/STROKE |
诺冠现货 | E/809080/10X/DX2 |
诺冠现货 | E/809080/10X/DX2/STROKE |
诺冠现货 | E/809080/10X/ENA |
诺冠现货 | E/809080/10X/ENA/STROKE |
诺冠现货 | E/809080/10X/ENB |