力士樂柱塞泵AA10VS028DFR1/31R-PPA12N00

柱塞泵一般分為單柱塞泵,、臥式柱塞泵,、軸向柱塞泵和徑向柱塞泵。
單柱塞泵
結(jié)構(gòu)組成主要有偏心輪,、柱塞,、彈簧、缸體,、兩個單向閥,。柱塞與缸體孔之間形成密閉容積。偏心輪旋轉(zhuǎn)一轉(zhuǎn),，柱塞上下往復(fù)運動一次,，向下運動吸油，向上運動排油,。泵每轉(zhuǎn)一轉(zhuǎn)排出的油液體積稱為排量,，排量只與泵的結(jié)構(gòu)參數(shù)有關(guān)。
臥式柱塞泵
臥式柱塞泵是由幾個柱塞（一般為3個或6個）并列安裝,，用1根曲軸通過連桿滑塊或由偏心軸直接推動柱塞做往復(fù)運動,，實現(xiàn)吸、排液體的液壓泵。它們也都采用閥式配流裝置,，而且大多為定量泵,。煤礦液壓支架系統(tǒng)中的乳化液泵一般都是臥式柱塞泵。
乳化液泵用于采煤工作面,，為液壓支架提供乳化液,，工作原理靠曲軸的旋轉(zhuǎn)帶動活塞做往復(fù)運動，實現(xiàn)吸液和排液,。
軸向式

軸向柱塞泵（英文名Piston pump）是活塞或柱塞的往復(fù)運動方向與缸體中心軸平行的柱塞泵,。軸向柱塞泵利用與傳動軸平行的柱塞在柱塞孔內(nèi)往復(fù)運動所產(chǎn)生的容積變化來進(jìn)行工作的。由于柱塞和柱塞孔都是圓形零件,，加工時可以達(dá)到很高的精度配合,，因此容積效率高
直軸斜盤式

直軸斜盤式柱塞泵分為壓力供油型和自吸油型兩種。壓力供油型液壓泵大都是采用有氣壓的油箱,，靠氣壓供油的液壓油箱,，在每次啟動機器之后，必須等液壓漬箱達(dá)到使用氣壓后,，才能操作機械,。如液壓油箱的氣壓不足時就啟動機器，會對液壓泵內(nèi)的與滑靴造成拉脫現(xiàn)象,，出會造成泵體內(nèi)回程板與壓板的非正常磨損,。
徑向式

徑向柱塞泵可分為閥配流與軸配流兩大類。閥配流徑向柱塞泵存在故障率高,、效率

力士樂柱塞泵AA10VS028DFR1/31R-PPA12N00

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