武汉耀泰机电设备有限公司
武汉耀泰特供应全系列
轴向柱塞泵（英文名:Piston pump）是活塞或柱塞的往复运动方向与缸体中心轴平行的柱塞泵。轴向柱塞泵利用与传动轴平行的柱塞在柱塞孔内往复运动所产生的容积变化来进行工作的。由于柱塞和柱塞孔都是圆形零件，加工时可以达到很高的精度配合，因此容积效率高。
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轴向柱塞泵（英文名:Piston pump）是活塞或柱塞的往复运动方向与缸体中心轴平行的柱塞泵。轴向柱塞泵利用与传动轴平行的柱塞在柱塞孔内往复运动所产生的容积变化来进行工作的。由于柱塞和柱塞孔都是圆形零件，加工时可以达到很高的精度配合，因此容积效率高。
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A10VSO18DFR1/31R-PPA12N00
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以上
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A10VSO28DFR1/31R-PPA12N00 柱塞泵
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当凸轮的凸起部分转过去后，在弹簧力的作用下，柱塞向下运动，柱塞上部空间（称为泵油室）产生真空度，当柱塞上端面把柱塞套上的进油孔打开后，充满在油泵上体油道内的柴油经油孔进入泵油室，柱塞运动到下止点，进油结束
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柱塞向上供油，当上行到柱塞上的斜槽（停供边）与套筒上的回油孔相通时，泵油室低压油路便与柱塞头部的中孔和径向孔及斜槽沟通，油压骤然下降，出油阀在弹簧力的作用下迅速关闭，停止供油。此后柱塞还要上行，当凸轮的凸起部分转过去后，在弹簧的作用下，柱塞又下行。此时便开始了下一个循环。
柱塞泵以一个柱塞为原理介绍，一个柱塞泵上有两个单向阀，并且方向相反，柱塞向一个方向运动时缸内出现负压，这时一个单向阀打开液体被吸入缸内，柱塞向另一个方向运动时，将液体压缩后另一个单向阀被打开，被吸入缸内的液体被排出。这种工作方式连续运动后就形成了连续供油 。
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柱塞泵最重要的部件是轴承，如果轴承出现游隙，则不能保证液压泵内部三对磨擦副的正常间隙，同时也会破坏各磨擦副的静液压支承油膜厚度，降低柱塞泵轴承的使用寿命。据液压泵制造厂提供的资料，轴承的平均使用寿命为10000h，超过此值就需要更换新口。拆卸下来的轴承，没有专业检测仪器是无法检测出轴承的游隙的，只能采用目测，如发现滚柱表面有划痕或变色，就必须更换