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柱塞泵A10VSO28DFR1/31R-PPA12N00 現(xiàn)貨

發(fā)布時間: 2023-09-13  點(diǎn)擊次數(shù): 264次

柱塞泵A10VSO28DFR1/31R-PPA12N00 現(xiàn)貨

REXROTH柱塞泵往復(fù)運(yùn)動的總行程L是常數(shù),由凸輪的升程決定。柱塞每個循環(huán)的供油量不受凸輪軸控制,取決于可變供油行程。供油行程的變化不會改變供油開始時間。當(dāng)柱塞轉(zhuǎn)動時,加油結(jié)束時間發(fā)生變化,加油量發(fā)生變化。當(dāng)REXROTH柱塞泵啟動時,噴油泵的凸輪軸凸輪和柱塞彈簧作用,使柱塞上下往復(fù)運(yùn)動,完成抽油任務(wù)。

REXROTH柱塞泵有兩個方向相反的止回閥。當(dāng)柱塞向一個方向移動時,在氣缸中產(chǎn)生負(fù)壓并完成一項(xiàng)壓縮后閥門打開。當(dāng)液體被吸入氣缸,柱塞向相反方向移動時,液體被壓縮后另一個單向閥打開,吸入氣缸的液體被排出。在這種工作方式下連續(xù)運(yùn)動后,形成連續(xù)供油。

柱塞泵有兩個單向的閥門,且呈相反的方向;是屬于液壓系統(tǒng)的重要裝置,工作的原理是依靠柱塞在缸體進(jìn)行的往復(fù)運(yùn)動,使泵在密封工作時容腔里的容積產(chǎn)生變化,來完成吸油、壓油的過程,依靠泵軸的偏心轉(zhuǎn)動驅(qū)動,進(jìn)而實(shí)現(xiàn)往復(fù)運(yùn)動過程;當(dāng)柱塞向外運(yùn)動時,缸內(nèi)會呈現(xiàn)負(fù)壓狀態(tài),與之同時其中的一個單向閥門打開,液體被吸入缸內(nèi);當(dāng)柱塞向內(nèi)運(yùn)動,合上時缸內(nèi)壓力增強(qiáng),此時另一個單向閥門打開,吸入缸內(nèi)的液體排出;泵軸的偏心轉(zhuǎn)動不停的驅(qū)動柱塞內(nèi)外往復(fù),達(dá)到完成吸油和排油的目的,這個過程有點(diǎn)像兒時玩過的注射器,只是注射器進(jìn)出都是一個閥口,柱塞泵將其分開,原理很相似,非常好理解。

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德國制造, 只有在人群中間,才能認(rèn)識自己。

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力士樂AA10VSO10DR/52L-PKC64N00

rexroth油泵是液壓系統(tǒng)的動力機(jī)構(gòu),它將原動機(jī)(電動機(jī)、內(nèi)燃機(jī)等)的機(jī)械能轉(zhuǎn)變?yōu)橐后w的壓力能。力士樂油泵可以分為容積式和非容積室(蝸輪式)兩種。非容積式有離心泵、軸流泵等,利用高

速旋轉(zhuǎn)的葉輪使進(jìn)口產(chǎn)生真空吸入液體,并在出口連續(xù)輸出壓力液體。這種泵進(jìn)口與出口相通,效率隨液體粘度增加而降低,并且輸出液體量隨出口壓力升高而減少。

定量泵、

開式回路 軸向柱塞定量泵

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柱塞泵A10VSO28DFR1/31R-PPA12N00 現(xiàn)貨

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