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力士乐柱塞泵特点：
-用于液压开式回路的斜盘结构轴向柱塞变量泵
-流量正比于驱动转速和排量，关能通过调节斜盘倾角实现无级变量
-ISO标准的安装法兰
-法兰转接符合SAE米制
-有两个壳体泄油孔
-优良的吸入性能
-允许连续运行压力可达280Bar
-低噪声
-驱动轴能承受轴向及径向负载
-高的功率/重量比
-广范围的多种控制形式
-控制响应时间短
-采用通轴结构，可用于多回路系统
力士乐柱塞泵根据倾斜元件的不同，有斜盘式和斜轴式两种。斜盘式是斜盘相对回转的缸体有一倾斜角度，而引起柱塞在泵缸中往复运动。传动轴轴线和缸体轴线是一致的。这种结构较简单，转速较高

，但工作条件要求高，柱塞端部与斜盘的接触部往往是薄弱环节。斜轴式的斜盘轴线与传动轴轴线是一致的。它是由于柱塞缸体相对传动轴倾斜一角度而使柱塞作往复运动。流量调节依靠摆动柱塞缸体

的角度来实现，故有的又称摆缸式。它与斜盘式相比，工作可靠，流量大，但结构复杂。

轴向柱塞泵与径向柱塞泵比较，排出压力高，它一般可在20～50MPa范围内工作，效率也高，径向尺寸小、结构紧凑、体积小、重量轻。但结构较径向柱塞泵复杂，加工制造要求高，价格较贵。

轴向柱塞泵一般用于机床、冶金、锻压、矿山及起重机械的液压传动系统中，特别广泛地应用于大功率的液压传动系统中。为了提高效率，在应轴向柱塞泵一般都由缸体、配油盘、柱塞和斜盘等主要零

件组成。缸体内有多个柱塞，柱塞是轴向排列的，即柱塞的中心线平行于传动轴的轴线，因此称它为轴向柱塞泵。但它又不同于往复式柱塞泵，因为它的柱塞不仅在泵缸内做往复运动，而且柱塞和泵缸

与斜盘相对有旋转运动。柱塞以一球形端头与斜盘接触。在配油盘上有高低压月形沟槽，它们彼此由隔墙隔开，保证一定的密封性，它们分别与泵的进油口和出油口连通。斜盘的轴线与缸体轴线之间有

一倾斜角度。

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