二、雙作用葉片泵的工作原理
它的作用原理和單作用葉片泵相似,不同之處只在于定子表面是由兩段長(zhǎng)半徑圓弧、兩段短半徑圓弧和四段過(guò)渡曲線(xiàn)八個(gè)部分組成,且定子和轉(zhuǎn)子是同心的。在圖示轉(zhuǎn)子順時(shí)針?lè)较蛐D(zhuǎn)的情況下,密封工作腔的容積在左上角和右下角處逐漸增大,為吸油區(qū),在左下角和右上角處逐漸減小,為壓油區(qū);吸油區(qū)和壓油區(qū)之間有一段封油區(qū)把它們隔開(kāi)。這種泵的轉(zhuǎn)子每轉(zhuǎn)一轉(zhuǎn),每個(gè)密封工作腔完成吸油和壓油動(dòng)作各兩次,所以稱(chēng)為雙作用葉片泵。泵的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū)是徑向?qū)ΨQ(chēng)的,作用在轉(zhuǎn)子上的液壓力徑向平衡,所以又稱(chēng)為平衡式葉片泵。
雙作用葉片泵的瞬時(shí)流量是脈動(dòng)的,當(dāng)葉片數(shù)為4的倍數(shù)時(shí)脈動(dòng)率小。為此,雙作用葉片泵的葉片數(shù)一般都取12或16。
PFE-21005,柱銷(xiāo)式葉片泵
PFE-21006,柱銷(xiāo)式葉片泵
PFE-21008,柱銷(xiāo)式葉片泵
PFE-21010,柱銷(xiāo)式葉片泵
PFE-21012,柱銷(xiāo)式葉片泵
PFE-21016,柱銷(xiāo)式葉片泵
PFE-31016,柱銷(xiāo)式葉片泵
PFE-31022,柱銷(xiāo)式葉片泵
PFE-31028,柱銷(xiāo)式葉片泵
PFE-31036,柱銷(xiāo)式葉片泵
PFE-31044,柱銷(xiāo)式葉片泵
PFE-32016,柱銷(xiāo)式葉片泵
PFE-32022,柱銷(xiāo)式葉片泵
PFE-32028,柱銷(xiāo)式葉片泵
PFE-32036,柱銷(xiāo)式葉片泵
PFE-32044,柱銷(xiāo)式葉片泵
PFE-41029,柱銷(xiāo)式葉片泵
PFE-41037,柱銷(xiāo)式葉片泵
PFE-41045,柱銷(xiāo)式葉片泵
PFE-41056,柱銷(xiāo)式葉片泵
PFE-41070,柱銷(xiāo)式葉片泵
PFE-41085,柱銷(xiāo)式葉片泵
PFE-42045,柱銷(xiāo)式葉片泵
PFE-42056,柱銷(xiāo)式葉片泵
PFE-42070,柱銷(xiāo)式葉片泵
PFE-42085,柱銷(xiāo)式葉片泵
PFE-51090,柱銷(xiāo)式葉片泵
PFE-51110,柱銷(xiāo)式葉片泵
PFE-51129,柱銷(xiāo)式葉片泵
PFE-51150,柱銷(xiāo)式葉片泵
PFE-52090,柱銷(xiāo)式葉片泵
PFE-52110,柱銷(xiāo)式葉片泵
PFE-52129,柱銷(xiāo)式葉片泵
PFE-52150,柱銷(xiāo)式葉片泵
PFE-61160,柱銷(xiāo)式葉片泵
PFE-61180,柱銷(xiāo)式葉片泵
PFE-61200,柱銷(xiāo)式葉片泵
PFE-61224,柱銷(xiāo)式葉片泵
PFE-21005-1DT,柱銷(xiāo)式葉片泵
PFE-21006-1DT,柱銷(xiāo)式葉片泵
PFE-21008-1DT,柱銷(xiāo)式葉片泵
PFE-21010-1DT,柱銷(xiāo)式葉片泵
PFE-21012-1DT,柱銷(xiāo)式葉片泵
PFE-21016-1DT,柱銷(xiāo)式葉片泵
PFE-31016-1DT,柱銷(xiāo)式葉片泵
PFE-31022-1DT,柱銷(xiāo)式葉片泵
PFE-31028-1DT,柱銷(xiāo)式葉片泵
PFE-31036-1DT,柱銷(xiāo)式葉片泵
PFE-31044-1DT,柱銷(xiāo)式葉片泵
PFE-32016-1DT,柱銷(xiāo)式葉片泵
PFE-32022-1DT,柱銷(xiāo)式葉片泵
PFE-32028-1DT,柱銷(xiāo)式葉片泵
PFE-32036-1DT,柱銷(xiāo)式葉片泵
PFE-32044-1DT,柱銷(xiāo)式葉片泵
PFE-41029-1DT,柱銷(xiāo)式葉片泵
PFE-41037-1DT,柱銷(xiāo)式葉片泵
PFE-41045-1DT,柱銷(xiāo)式葉片泵
PFE-41056-1DT,柱銷(xiāo)式葉片泵
PFE-41070-1DT,柱銷(xiāo)式葉片泵
PFE-41085-1DT,柱銷(xiāo)式葉片泵
PFE-42045-1DT,柱銷(xiāo)式葉片泵
PFE-42056-1DT,柱銷(xiāo)式葉片泵
PFE-42070-1DT,柱銷(xiāo)式葉片泵
PFE-42085-1DT,柱銷(xiāo)式葉片泵
PFE-51090-1DT,柱銷(xiāo)式葉片泵
PFE-51110-1DT,柱銷(xiāo)式葉片泵
PFE-51129-1DT,柱銷(xiāo)式葉片泵
PFE-51150-1DT,柱銷(xiāo)式葉片泵
PFE-52090-1DT,柱銷(xiāo)式葉片泵
PFE-52110-1DT,柱銷(xiāo)式葉片泵
PFE-52129-1DT,柱銷(xiāo)式葉片泵
PFE-52150-1DT,柱銷(xiāo)式葉片泵
PFE-61160-1DT,柱銷(xiāo)式葉片泵
PFE-61180-1DT,柱銷(xiāo)式葉片泵
PFE-61200-1DT,柱銷(xiāo)式葉片泵
PFE-61224-1DT,柱銷(xiāo)式葉片泵