德国REXROTH力士乐油泵A10VSO100DR，rexroth液压油泵，液压油泵

油泵的组成结构
一、壳体
二、后盖（增压泵）
三、控制阀，控制活塞
四、密封件
五、回转体总成（主轴及轴承、缸体、斜盘、柱塞、月牙轴承、回程盘、配流盘、球铰及蝶形弹簧）

力士乐REXROTH油泵有三大类：力士乐柱塞泵，力士乐叶片泵，力士乐齿轮泵

德国REXROTH力士乐油泵A10VSO100DR，rexroth液压油泵，液压油泵

力士乐油泵可以分为容积式和非容积室（蜗轮式）两种。非容积式有离心泵、轴流泵等，利用高速旋转的叶轮使进口产生真空吸入液体，并在出口连续输出压力液体。这种泵进口与出口相通，效率随液体粘度增加而降低，并且输出液体量随出口压力升高而显著减少。
容积式泵是通过一个封闭的空间容积的变化来实现吸油和压油的。当这个封闭容积由小变大时进行吸油，由大变小时进行压油。典型的为力士乐柱塞泵，柱塞从缸孔中拉出时吸油，压进时压油。这种泵进口与出口是被隔开的，效率取决于隔开吸压油腔的各对运动零件间的结构工艺间隙及油液的粘度等。粘度越高效率越高，输油量几乎保持不变（因效率略有影响，另外压力升高至18MPa，油液会被压缩1%）。

力士乐油泵的供油和自吸Rexroth柱塞泵具有一定的自吸能力，但自吸的高度不宜超过500mm，并且严禁在吸入管道上安装滤油器，吸入管道直径不小于*数值，另外自吸时一定要把泵先调至全偏角。
在转速超过1500rpm时，宜采用供油，供油压力为0.7MPa左右。在开式系统中，供油泵的流量应为该泵的130%，在闭式系统中，供油泵的流量应为该泵的35%。

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