徑向柱塞泵 特征:各柱塞排列在傳動軸半徑方向,即柱塞中心線垂直于傳動軸中心線 1. 徑向柱塞泵的工作原理 結(jié)構(gòu):定子、轉(zhuǎn)子、柱塞、配油軸等 ↓ ↓ 偏心 固定 工作原理:V密形成——同上 上半周,吸油 V密變化——轉(zhuǎn)子順轉(zhuǎn)< 下半周,壓油 排量 V = πd22ez/4 2) 流量 qt = Vn =πd22ezn/4 q = Vnηpv =πd22eznηpv/4 變量原理:徑向柱塞泵的排量和流量 改變偏心距的大小和方向, 即可以改變輸出油液的大小和方向。 閥配流徑向柱塞泵的工作原理 徑向柱塞泵的特點(diǎn): 流量大,壓力高,便于作成多排柱塞的形式,工作可靠但徑向尺寸大, 自吸能力差, 配流軸徑向力不平衡,易磨損,間隙不能補(bǔ)償, 故限制了轉(zhuǎn)速和壓力的提高。
力士樂柱塞泵A4CSG系列特點(diǎn)
◆采用斜盤設(shè)計的可變排量軸向柱塞泵,適用于閉路中的液壓傳動裝置。
◆流量與輸入速度和排量成比例。通過調(diào)整斜盤,可對其進(jìn)行無極調(diào)節(jié)。
◆所需輔助泵和所有必要的控制閥均采用集成方式。
◆一個公共輔助泵用于升壓和 EP 控制壓力
◆緊湊設(shè)計(長度極短)
◆合理的功率/重量比
◆低噪音等級
◆長久的使用壽命
◆高效率
◆全新的電動液壓控制 EP,具有比例線圈和零排量位置(功率損耗時)
◆多泵組合的通軸傳動也可用于集成輔助泵
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R900561581 PV7-1X/40-71RE37MC3-08
R900560916 PV7-1X/10-14RE01KC0-16
R900560659 PV7-1X/63-94RE07MC0-08
R900560658 PV7-1X/16-30RE01MD0-08
R900560629 PV7-1X/100-150RE07MC5-08
R900556803 PV7-1X/100-118RE07MC5-16WH
R900553692 PV7-1X/63-71RE07MC5-16WG
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