Rexroth叶片泵PVV52-1X/139-068RA15DLMC

Rexroth叶片泵PVV52-1X/139-068RA15DLMC

武汉百士自动化设备有限公司专注于液压、气动、工控自动化备件销售，热诚欢迎新老客户咨询购买！

性能特点

叶片泵压力脉动小，因磨损而产生的工作压力下降车小运转平稳、噪音较小，结构紧凑，起动转矩小。但吸人条件较差，运动部件的工作可靠性较低。

1.流量较均匀，运转平稳，噪声较低。

2.双作用叶片泵转子所受径向力是平衡的，轴承寿命长;它的内部密封性也较好，容积效率较高;因此，一般额定排出压力较高，可达7MPa左右。

3.结构紧凑，尺寸较小而流量较大。

4.对工作条件要求较严。叶片抗冲击较差，较容易卡住，对油液的清洁程度和粘度都比较敏感。端面间隙或叶槽间隙不合适都会影响正常工作。转速一-般在500~2000r /道范围内，太低则叶片可能因离心力不够而不能压紧在定了表面，而太高则吸人时会产生“气穴现象”；

5.结构较复杂，零件制造精度要求较高。

单作用叶片泵的工作原理

泵由转子1、定子2、叶片3、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，右侧的叶片向外伸出，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1被压出而输出到系统中去。

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