力士乐REXROTH变量柱塞泵

力士乐REXROTH变量柱塞泵
力士乐Rexroth变量柱塞泵可分为阀配流与轴配流两大类。阀配流径向柱塞泵存在故障率、效率  柱塞泵
低等缺点。际上70、80年代发展的轴配流径向柱塞泵克服了阀配流径向柱塞泵的不足。由于径向泵结构上的特点，固定了轴配流径向柱塞泵比轴向柱塞泵耐冲击、寿命长、控制。变量行程短泵的变量是在变量柱塞和限位柱塞作用下，改变定子的偏心距实现的，而定于的Z大偏心距为 5—9mm（根据排量大小不同），变量行程很短。且变量机构设计为压操纵，由控制阀进行控制。故该泵的响应速度快。径向结构设计克服了如轴向柱塞泵滑靴偏磨的问题。使其抗冲击能力大幅度提。
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力士乐REXROTH变量柱塞泵