PV7系列葉片泵PV7-1A10-14RE01MC0-16

力士樂(lè)PV7系列葉片泵PV7-1A/10-14RE01MC0-16

單作用葉片泵的工作原理 泵由轉(zhuǎn)子、定子、葉片、配油盤(pán)和端蓋等部件所組成。定子的內(nèi)表面是圓柱形孔。轉(zhuǎn)子和 定子之間存在著偏心。葉片在轉(zhuǎn)子的槽內(nèi)可靈活滑動(dòng)，在轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)的離心力以及通入葉片根部壓 力油的作用下，葉片頂部貼緊在定子內(nèi)表面上，于是兩相鄰葉片、配油盤(pán)、定子和轉(zhuǎn)子間便形成了 一個(gè)個(gè)密封的工作腔。當(dāng)轉(zhuǎn)子按逆時(shí)針?lè)较蛐�轉(zhuǎn)時(shí)，葉片向外伸出，密封工作腔容積逐漸加大，產(chǎn)生真空，于是通過(guò)吸油口和配油盤(pán)上窗口將油吸入。而在圖的左側(cè)。葉片往里縮進(jìn)， 密封腔的容積逐漸縮小，密封腔中的油液經(jīng)配油盤(pán)另一窗口和壓油口 被壓出而輸出到系統(tǒng)中去。這種泵在轉(zhuǎn)子轉(zhuǎn)一轉(zhuǎn)過(guò)程中，吸油壓油各一次，故稱單作用泵。轉(zhuǎn)子受到徑向液壓不平衡作用力， 故又稱非平衡式泵，其軸承負(fù)載非常大。改變定子和轉(zhuǎn)子間的偏心量，便可改變泵的排量，故這種泵 都是變量泵。

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