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日本YUKEN油研叶片泵PV2R2-33-F-RAA-41 PV2R2-41-F-RAA-41 PV2R2-47-F-RAA-41 YUKEN油研变量柱塞泵A37-F-R-01-H-K-32A37-F-R-01-C-K-32柱塞，滑靴，回程盘，配油盘，缸体等配件
YUKEN柱塞泵油研柱塞泵一般都由缸体、配油盘、柱塞和斜盘等主要零件组成。缸体内有多个柱塞，柱塞是轴向排列的，即柱塞的中心线平行于传动轴的轴线，因此称它为轴向柱塞泵。但它又不同于往复式柱塞泵，因为它的柱塞不仅在泵缸内做往复运动，而且柱塞和泵缸与斜盘相对有旋转运动。柱塞以一球形端头与斜盘接触。在配油盘上有高低压月形沟槽，它们彼此由隔墙隔开，保证一定的密封性，它们分别与泵的进油口和出油口连通。斜盘的轴线与缸体轴线之间有一倾斜角度。
YUKEN柱塞泵油研柱塞泵的工作原理所示，当电动机带动传动轴旋转时，泵缸与柱塞一同旋转，柱塞头永远保持与斜盘接触，因斜盘与缸体成一角度，因此缸体旋转时，柱塞就在泵缸中做往复运动。以图l—40的下一柱塞为例，它从0°转到180°，即转到上面柱塞的位置，柱塞缸容积逐渐增大，因此液体经配油盘的吸油口a吸人油缸；而该柱塞从180°转到360°时，柱塞缸容积逐渐减小，因此油缸内液体经配油盘的出口排出液体。只要传动轴不断旋转，泵便不断地工作。
改变倾斜元件的角度，就可以改变柱塞在泵缸内的行程长度，即可改变泵的流量。倾斜角度固定的称为定量泵，倾斜角度可以改变的便称为变量泵。
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