一、單作用葉片泵(beng)的工作原理: ATOS葉(xie)片(pian)(pian)泵由轉(zhuan)子(zi)(zi)(zi)1、定(ding)(ding)子(zi)(zi)(zi)2、葉(xie)片(pian)(pian)3、配油(you)(you)(you)(you)盤(pan)(pan)和端蓋等部(bu)件所組成(cheng)。定(ding)(ding)子(zi)(zi)(zi)的(de)(de)(de)(de)(de)(de)內(nei)表(biao)面是(shi)圓柱形孔。轉(zhuan)子(zi)(zi)(zi)和定(ding)(ding)子(zi)(zi)(zi)之間(jian)(jian)存在著(zhu)偏(pian)(pian)心(xin)。葉(xie)片(pian)(pian)在轉(zhuan)子(zi)(zi)(zi)的(de)(de)(de)(de)(de)(de)槽內(nei)可(ke)靈活滑動(dong),在轉(zhuan)子(zi)(zi)(zi)轉(zhuan)動(dong)時的(de)(de)(de)(de)(de)(de)離心(xin)力以(yi)及通入葉(xie)片(pian)(pian)根部(bu)壓力油(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)(zuo)用下,葉(xie)片(pian)(pian)頂部(bu)貼緊在定(ding)(ding)子(zi)(zi)(zi)內(nei)表(biao)面上,于是(shi)兩相鄰葉(xie)片(pian)(pian)、配油(you)(you)(you)(you)盤(pan)(pan)、定(ding)(ding)子(zi)(zi)(zi)和轉(zhuan)子(zi)(zi)(zi)間(jian)(jian)便形成(cheng)了(le)一(yi)(yi)個個密(mi)封(feng)(feng)的(de)(de)(de)(de)(de)(de)工作(zuo)(zuo)(zuo)腔。當轉(zhuan)子(zi)(zi)(zi)按逆(ni)時針方向旋轉(zhuan)時,圖右側(ce)(ce)的(de)(de)(de)(de)(de)(de)葉(xie)片(pian)(pian)向外伸出(chu),密(mi)封(feng)(feng)工作(zuo)(zuo)(zuo)腔容(rong)積(ji)逐(zhu)漸增(zeng)大,產生真空(kong),于是(shi)通過(guo)吸油(you)(you)(you)(you)口6和配油(you)(you)(you)(you)盤(pan)(pan)5上窗(chuang)口將油(you)(you)(you)(you)吸入。而(er)在圖的(de)(de)(de)(de)(de)(de)左(zuo)側(ce)(ce)。葉(xie)片(pian)(pian)往里縮進,密(mi)封(feng)(feng)腔的(de)(de)(de)(de)(de)(de)容(rong)積(ji)逐(zhu)漸縮小(xiao),密(mi)封(feng)(feng)腔中的(de)(de)(de)(de)(de)(de)油(you)(you)(you)(you)液經配油(you)(you)(you)(you)盤(pan)(pan)另(ling)一(yi)(yi)窗(chuang)口和壓油(you)(you)(you)(you)口1被壓出(chu)而(er)輸出(chu)到系統中去。這(zhe)種(zhong)(zhong)泵在轉(zhuan)子(zi)(zi)(zi)轉(zhuan)一(yi)(yi)轉(zhuan)過(guo)程中,吸油(you)(you)(you)(you)壓油(you)(you)(you)(you)各一(yi)(yi)次,故(gu)稱單作(zuo)(zuo)(zuo)用泵。轉(zhuan)子(zi)(zi)(zi)受(shou)到徑向液壓不(bu)平(ping)衡作(zuo)(zuo)(zuo)用力,故(gu)又稱非平(ping)衡式(shi)泵,其軸承(cheng)負載較大。改變定(ding)(ding)子(zi)(zi)(zi)和轉(zhuan)子(zi)(zi)(zi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)偏(pian)(pian)心(xin)量(liang),便可(ke)改變泵的(de)(de)(de)(de)(de)(de)排量(liang),故(gu)這(zhe)種(zhong)(zhong)泵都是(shi)變量(liang)泵。 二、雙作(zuo)用葉片泵的工作(zuo)原理: ATOS葉(xie)(xie)(xie)(xie)片(pian)泵(beng)的(de)作(zuo)用原理和(he)單作(zuo)用葉(xie)(xie)(xie)(xie)片(pian)泵(beng)相(xiang)似,不(bu)同(tong)之處只在(zai)(zai)于定子(zi)(zi)表面是(shi)由兩(liang)(liang)段長半徑(jing)(jing)圓弧、兩(liang)(liang)段短(duan)半徑(jing)(jing)圓弧和(he)四段過(guo)渡曲線八(ba)個(ge)部分組(zu)成,且定子(zi)(zi)和(he)轉子(zi)(zi)是(shi)同(tong)心的(de)。在(zai)(zai)圖示轉子(zi)(zi)順時針方(fang)向旋(xuan)轉的(de)情況下(xia),密封工(gong)作(zuo)腔(qiang)的(de)容積在(zai)(zai)左上(shang)角和(he)右下(xia)角處逐漸增大,為(wei)吸油(you)區(qu),在(zai)(zai)左下(xia)角和(he)右上(shang)角處逐漸減小,為(wei)壓(ya)(ya)油(you)區(qu);吸油(you)區(qu)和(he)壓(ya)(ya)油(you)區(qu)之間有一(yi)段封油(you)區(qu)把它們(men)隔開(kai)。這種(zhong)泵(beng)的(de)轉子(zi)(zi)每轉一(yi)轉,每個(ge)密封工(gong)作(zuo)腔(qiang)完成吸油(you)和(he)壓(ya)(ya)油(you)動(dong)作(zuo)各(ge)兩(liang)(liang)次,所以稱(cheng)為(wei)雙作(zuo)用葉(xie)(xie)(xie)(xie)片(pian)泵(beng)。泵(beng)的(de)兩(liang)(liang)個(ge)吸油(you)區(qu)和(he)兩(liang)(liang)個(ge)壓(ya)(ya)油(you)區(qu)是(shi)徑(jing)(jing)向對稱(cheng)的(de),作(zuo)用在(zai)(zai)轉子(zi)(zi)上(shang)的(de)液(ye)壓(ya)(ya)力徑(jing)(jing)向平(ping)衡(heng),所以又稱(cheng)為(wei)平(ping)衡(heng)式葉(xie)(xie)(xie)(xie)片(pian)泵(beng)。 雙(shuang)作用(yong)(yong)葉片泵的(de)瞬時流(liu)量(liang)是脈動的(de),當葉片數(shu)為4的(de)倍(bei)數(shu)時脈動率小。為此,雙(shuang)作用(yong)(yong)葉片泵的(de)葉片數(shu)一般都取(qu)12或16。 意大利進口ATOS葉片泵部分型號: PFE-31028/1DV PFE-31036/1DT PFE-31036/1DU 20 PFE-31036/1DV 20 PFE-31036/1DW PFE-31044/1DT 20 PFE-31044/1DU 20 PFE-31044/1DV 20 PFE-32028/3DT 20 PFE-32028/3DV 20 PFE-32036/3DT PFE-41037/1DU 20 PFE-41045/1DT PFE-41045/1DU 20 PFE-41045/1DW 20 PFE-41056/1DT PFE-41056/1DU 20 PFE-41056/1DV 20 PFE-41056/1DW 20 PFE-41070/1DT PFE-41070/1DV 20 PFE-41070/2DT 20 PFE-41070/2DV 20 PFE-41085/1DT 20 PFE-41085/1DW 20 PFE-42045/3DW 20 PFE-42056/3DU 20 PFE-42070/3DT 20 PFE-42070/3DU PFE-42070/3DW 20 PFE-42070/7DV PFE-51090/1DT 23 PFE-51090/1DU PFE-51110/1DT 23 PFE-51110/1DU 23 PFE-51110/3DT 23 PFE-51129/1DT PFE-51150/1DT PFE-51150/3DV PFE-52090/3DT 31 PFE-52110/3DT 31 |