軸向柱塞泵（英文名：Piston pump）
是活塞或柱塞的往復(fù)運(yùn)動(dòng)方向與缸體中心軸平行的柱塞泵。
軸向柱塞泵利用與傳動(dòng)軸平行的柱塞在柱塞孔內(nèi)往復(fù)運(yùn)動(dòng)所
產(chǎn)生的容積變化來(lái)進(jìn)行工作的。由于柱塞和柱塞孔都是圓形零件，
加工時(shí)可以達(dá)到很高的精度配合，因此容積效率高。
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柱塞泵是液壓系統(tǒng)的一個(gè)重要裝置。
它依靠柱塞在缸體中往復(fù)運(yùn)動(dòng)，
使密封工作容腔的容積發(fā)生變化來(lái)實(shí)現(xiàn)吸油、壓油。
柱塞泵具有額定壓力高、結(jié)構(gòu)緊湊、效率高和流量
調(diào)節(jié)方便等優(yōu)點(diǎn)，被廣泛應(yīng)用于高壓、大流量和流量
需要調(diào)節(jié)的場(chǎng)合，諸如液壓機(jī)、工程機(jī)械和船舶中。
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軸向柱塞泵（英文名：Piston pump）
是活塞或柱塞的往復(fù)運(yùn)動(dòng)方向與缸體中心軸平行的柱塞泵。
軸向柱塞泵利用與傳動(dòng)軸平行的柱塞在柱塞孔內(nèi)往復(fù)運(yùn)動(dòng)
所產(chǎn)生的容積變化來(lái)進(jìn)行工作的。由于柱塞和柱塞孔都是
圓形零件，加工時(shí)可以達(dá)到很高的精度配合，因此容積效率高。
A10VSO140DR/31R-PPB12N00
A10VSO140DFLR/31R-PPA12N00
A10VSO18DR/31R-PPA12N00
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A10VSO18DFR1/32R-VPB12N00
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A10V028DR/31R-PSC12N00
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液壓柱塞泵靠氣壓供油的液壓油箱，
在每次啟動(dòng)機(jī)器后，必須等液壓漬箱達(dá)
到使用氣壓后，才能操作機(jī)械。直軸斜
盤式柱塞泵分為壓力供油型的自吸油型
兩種。壓力供油型液壓泵大都采用有氣
壓的油箱，也有液壓泵本身帶有補(bǔ)油分
泵向液壓泵進(jìn)油口提供壓力油的。
自吸油型液壓泵的自吸油能力很強(qiáng)，無(wú)需外力供油。
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液壓柱塞泵靠氣壓供油的液壓油箱，
在每次啟動(dòng)機(jī)器后，必須等液壓漬箱
達(dá)到使用氣壓后，才能操作機(jī)械。
直軸斜盤式柱塞泵分為壓力供油型的
自吸油型兩種。壓力供油型液壓泵大
都采用有氣壓的油箱，也有液壓泵本
身帶有補(bǔ)油分泵向液壓泵進(jìn)油口提供壓
力油的。自吸油型液壓泵的自吸油能力很強(qiáng)，無(wú)需外力供油。
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柱塞泵柱塞往復(fù)運(yùn)動(dòng)總行程L是不變的，
由凸輪的升程決定。柱塞每循環(huán)的供油
量大小取決于供油行程,供油行程不受
凸輪軸控制是可變的。供油開(kāi)始時(shí)刻不
隨供油行程的變化而變化。轉(zhuǎn)動(dòng)柱塞可
改變供油終了時(shí)刻，從而改變供油量。
柱塞泵工作時(shí)，在噴油泵凸輪軸上的凸
輪與柱塞彈簧的作用下，迫使柱塞作上、
下往復(fù)運(yùn)動(dòng)，從而完成泵油任務(wù)，泵油
過(guò)程可分為以下三個(gè)階段。
