德國(guó)Rexroth力士樂(lè)齒輪泵工作原理圖齒輪泵格

 力士樂(lè)齒輪泵也叫正排量裝置，即像個(gè)缸筒內(nèi)的活塞,，當(dāng)個(gè)齒進(jìn)入另個(gè)齒的流體空間時(shí),，液體就被機(jī)械性地?cái)D排出來(lái)。因?yàn)橐后w是不可壓縮的,，所以液體和齒就不能在同時(shí)間占據(jù)同空間,，這樣，液體就被排除了,。由于齒的不斷嚙合,，這現(xiàn)象就連續(xù)在發(fā)生，因而也就在泵的出口提供了個(gè)連續(xù)排除量,，泵每轉(zhuǎn)轉(zhuǎn),，排出的量是樣的。隨著驅(qū)動(dòng)軸的不間斷地旋轉(zhuǎn),，泵也就不間斷地排出流體,。泵的流量直接與泵的轉(zhuǎn)速有關(guān)。實(shí)際上,，在泵內(nèi)有很少量的流體損失,，這使泵的運(yùn)行效率不能達(dá)到100％，因?yàn)檫@些流體被用來(lái)潤(rùn)滑軸承及齒輪兩側(cè),，而泵體也絕不可能無(wú)間隙配合,，故不能使流體100％地從出口排出，所以少量的流體損失是必然的,。然而泵還是可以良地運(yùn)行,，對(duì)大多數(shù)擠出物料來(lái)說(shuō)，仍可以達(dá)到93％～98％的效率,。齒輪泵工作原理很簡(jiǎn)單,，就是個(gè)主動(dòng)輪個(gè)從動(dòng)輪，兩個(gè)齒輪參數(shù)相同，在個(gè)泵體內(nèi)做旋轉(zhuǎn)運(yùn)動(dòng),。在這個(gè)殼體內(nèi)部形成類似個(gè)“8”字形的工作區(qū),，齒輪的外徑和兩側(cè)都與殼體緊密配合，傳送介質(zhì)從進(jìn)油口進(jìn)入,，隨著齒輪的旋轉(zhuǎn)沿殼體運(yùn)動(dòng),，zui后從出油口排出，zui后將介質(zhì)的壓力轉(zhuǎn)化成機(jī)械能進(jìn)行做功

德國(guó)Rexroth力士樂(lè)齒輪泵工作原理圖齒輪泵格

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