全新原装叶片泵PV7-1X/100-150RE07MC0-08

叶片泵的分类 叶片泵又分为双作用叶片泵和单作用叶片泵。双作用叶片泵只能作定量泵用，单作用叶片泵可作变量泵用。 双作用叶片泵因转子旋转一周，叶片在转子叶片槽内滑动两次，完成两次吸油和压油而得名。 单作用叶片泵转子每转一周，吸、压油各一次，故称为单作用。
叶片泵的工作原理叶片泵转子旋转时，叶片在离心力和压力油的作用下，尖部紧贴在定子内表面上。这样两个叶片与转子和定子内表面所构成的工作容积，先由小到大吸油后再由大到小排 油，叶片旋转一周时，完成两次吸油与排油。

单作用叶片泵的工作原理 泵由转子、定子、叶片、配油盘和端盖等部件所组成。定子的内表面是圆柱形孔。转子和 定子之间存在着偏心。叶片在转子的槽内可灵活滑动，在转子转动时的离心力以及通入叶片根部压 力油的作用下，叶片顶部贴紧在定子内表面上，于是两相邻叶片、配油盘、定子和转子间便形成了 一个个密封的工作腔。当转子按逆时针方向旋转时，叶片向外伸出，密封工作腔容积逐渐增大，产生真空，于是通过吸油口和配油盘上窗口将油吸入。而在图的左侧。叶片往里缩进， 密封腔的容积逐渐缩小，密封腔中的油液经配油盘另一窗口和压油口 被压出而输出到系统中去。这种泵在转子转一转过程中，吸油压油各一次，故称单作用泵。转子受到径向液压不平衡作用力， 故又称非平衡式泵，其轴承负载较大。改变定子和转子间的偏心量，便可改变泵的排量，故这种泵 都是变量泵。

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