武汉百士自动化设备有限公司

单作用叶片泵的工作原理

单作用叶片泵构造 基本结构：定子、转子、叶片、配油盘（吸、排口）、壳体（吸、排接管）、前、后 盖板。 定子型线是圆，转子也是园，二者存在偏心距。 片间工作空间：叶片、定子内表面、转子外表面、配油盘或盖板围成。

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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