液压油泵 PV7-1X/16-20RE01MC0-16 工作压力高

单作用叶片泵
单作用叶片泵的定义:叶片在离力和压力油的作用下，尖部紧贴在定子内表面上。通过改变两个叶片与转子和定子内表面所构成的工作容积大小变化，完成吸油排油过程，且叶片旋转一周，完成一次吸油与排油的叶片泵。
特点: 
1.泵每转一转，每个密封腔吸油压油一次
2.转子上受液压不平衡力，为非平衡式泵
3.改变偏心距大小，可改变排量，为变量泵
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**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，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。
类型 PV7...A 液压泵是直动式叶片泵，其排量体积可调。
基本上由壳体，盖板，转子，叶片，定子环，压缩弹簧，调整螺钉和控制板组成。为限制大流量，该泵配有调节螺钉。驱动转子在定子环中旋转。转子中导入的叶片在离心力的作用下贴紧定子环的内跑合面。
吸油和排油过程
运输流体所需的腔室由叶片，转子，定子环，控制板和盖板组成。
转子旋转时室体积增加，腔室通过吸油通道填充流体。达到大室体积后，腔室从吸油侧分离。
随着转子继续旋转，高压流体侧的连接打开，腔室缩小并迫使流体通过压力油口进入系统。
压力控制
定子环由弹簧固定在其初始的偏心位置。系统中所需的大工作压力是在调节螺钉处通过弹簧设定。的压力是由于对抗弹簧力的工作阻力作用于定子
环内跑合面的压力侧而产生的。
达到相关压力（由设定的弹簧力决定）后，定子环朝零位置的方向移出其偏心位置。流量自我调节至当时所需的值。当达到
弹簧处设置的大设定压力时，泵会将流量调回至几乎为零。工作压力得到保持，且仅更换泄露流体。流体的损失和加热从而降至低水平。
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力士乐油泵 0513850405
REXROTH 力士乐油泵 REXROTH 0513850405 
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BOSCH VPV45组合泵
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PVV21-1X/040-040RA15UUMB
PVV21-1X/040-040RJ15LLMB
PVV21-1X/045-018RA15DDMB
PVV21-1X/045-018RA15RRMB
PVV21-1X/045-018RA15UDVB
PVV21-1X/045-018RA15URMB
PVV21-1X/045-018RA15UUMB
PVV21-1X/045-018RB15URMB
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PVV21-1X/045-018RJ15DDMB
PVV21-1X/045-027RA15DDMB
PVV21-1X/045-027RA15UUMB
PVV21-1X/045-027RB15DDMB
PVV21-1X/045-027RJ15UUMB
PVV21-1X/045-036RA15DDMB
PVV21-1X/045-036RA15UUMB
PVV21-1X/045-040LA15UUMB
PVV21-1X/045-040RA15DDMB
PVV21-1X/045-040RA15UDMB
PVV21-1X/045-040RA15UUMB
PVV21-1X/045-046LA15URMB
PVV21-1X/045-046RA15RRMB
PVV21-1X/045-046RA15UDMB
PVV21-1X/045-046RA15UUMB
PVV21-1X/055-008RA15DRMB
PVV21-1X/055-018RA15DDMB
PVV21-1X/055-018RA15DUMB
PVV21-1X/055-018RA15RDMB
PVV21-1X/055-018RA15RRMB
PVV21-1X/055-018RA15UUMB
PVV21-1X/055-018RA15UUVB
PVV21-1X/055-018RB15UUMB
PVV21-1X/055-027LA15DDMB
PVV21-1X/055-027LR15DDMB
PVV21-1X/055-027RA15DDMB
PVV21-1X/055-027RA15URMB
PVV21-1X/055-027RA15UUMB
PVV21-1X/055-027RA15UUVB
PVV21-1X/055-027RB15DDMB
PVV21-1X/055-036RA15DDMB
PVV21-1X/055-036RA15UUMB
PVV21-1X/055-036RB15DDVB
PVV21-1X/055-036RB15RRVB
PVV21-1X/055-036RJ15DDMB
PVV21-1X/055-040LA15RUMB
PVV21-1X/055-046RA15DDMB
PVV21-1X/055-046RA15RDMB

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