一、單作用葉片泵的工作原理: ATOS葉(xie)片(pian)泵由轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)1、定子(zi)(zi)(zi)(zi)2、葉(xie)片(pian)3、配(pei)油(you)(you)盤和端蓋等部(bu)件所(suo)組成(cheng)。定子(zi)(zi)(zi)(zi)的(de)(de)(de)內(nei)表面(mian)是(shi)圓(yuan)柱形孔(kong)。轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)和定子(zi)(zi)(zi)(zi)之間存(cun)在著偏心。葉(xie)片(pian)在轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)的(de)(de)(de)槽內(nei)可靈活滑(hua)動,在轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)轉(zhuan)(zhuan)動時(shi)的(de)(de)(de)離(li)心力以及(ji)通入(ru)葉(xie)片(pian)根部(bu)壓(ya)力油(you)(you)的(de)(de)(de)作(zuo)(zuo)(zuo)用下,葉(xie)片(pian)頂部(bu)貼緊在定子(zi)(zi)(zi)(zi)內(nei)表面(mian)上(shang),于(yu)是(shi)兩相鄰葉(xie)片(pian)、配(pei)油(you)(you)盤、定子(zi)(zi)(zi)(zi)和轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)間便形成(cheng)了一個(ge)個(ge)密(mi)封的(de)(de)(de)工作(zuo)(zuo)(zuo)腔(qiang)。當轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)按逆時(shi)針方向(xiang)旋轉(zhuan)(zhuan)時(shi),圖(tu)右側的(de)(de)(de)葉(xie)片(pian)向(xiang)外伸(shen)出(chu),密(mi)封工作(zuo)(zuo)(zuo)腔(qiang)容(rong)(rong)積逐漸增大,產生真空(kong),于(yu)是(shi)通過吸(xi)(xi)油(you)(you)口(kou)(kou)6和配(pei)油(you)(you)盤5上(shang)窗口(kou)(kou)將油(you)(you)吸(xi)(xi)入(ru)。而在圖(tu)的(de)(de)(de)左側。葉(xie)片(pian)往里縮(suo)進,密(mi)封腔(qiang)的(de)(de)(de)容(rong)(rong)積逐漸縮(suo)小,密(mi)封腔(qiang)中的(de)(de)(de)油(you)(you)液經配(pei)油(you)(you)盤另一窗口(kou)(kou)和壓(ya)油(you)(you)口(kou)(kou)1被壓(ya)出(chu)而輸出(chu)到系統中去。這種泵在轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)轉(zhuan)(zhuan)一轉(zhuan)(zhuan)過程中,吸(xi)(xi)油(you)(you)壓(ya)油(you)(you)各(ge)一次,故(gu)稱單作(zuo)(zuo)(zuo)用泵。轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)受到徑(jing)向(xiang)液壓(ya)不平(ping)衡(heng)作(zuo)(zuo)(zuo)用力,故(gu)又稱非平(ping)衡(heng)式(shi)泵,其(qi)軸承負載較(jiao)大。改變定子(zi)(zi)(zi)(zi)和轉(zhuan)(zhuan)子(zi)(zi)(zi)(zi)間的(de)(de)(de)偏心量(liang),便可改變泵的(de)(de)(de)排量(liang),故(gu)這種泵都(dou)是(shi)變量(liang)泵。 二、雙作用葉片泵的工(gong)作原理: ATOS葉片泵(beng)(beng)的(de)(de)(de)(de)(de)作用(yong)原(yuan)理和(he)(he)單作用(yong)葉片泵(beng)(beng)相(xiang)似,不(bu)同(tong)之處(chu)只(zhi)在(zai)于(yu)定(ding)子(zi)(zi)表面是(shi)由兩(liang)段長半徑圓(yuan)弧、兩(liang)段短(duan)半徑圓(yuan)弧和(he)(he)四(si)段過渡曲線(xian)八個(ge)部分組(zu)成(cheng),且定(ding)子(zi)(zi)和(he)(he)轉(zhuan)(zhuan)子(zi)(zi)是(shi)同(tong)心(xin)的(de)(de)(de)(de)(de)。在(zai)圖示轉(zhuan)(zhuan)子(zi)(zi)順時針方向(xiang)旋轉(zhuan)(zhuan)的(de)(de)(de)(de)(de)情況下(xia),密(mi)封(feng)工作腔(qiang)的(de)(de)(de)(de)(de)容積在(zai)左(zuo)上(shang)角和(he)(he)右(you)下(xia)角處(chu)逐(zhu)漸(jian)增大,為(wei)吸(xi)(xi)油(you)(you)(you)(you)區,在(zai)左(zuo)下(xia)角和(he)(he)右(you)上(shang)角處(chu)逐(zhu)漸(jian)減小,為(wei)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)區;吸(xi)(xi)油(you)(you)(you)(you)區和(he)(he)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)區之間有一段封(feng)油(you)(you)(you)(you)區把它們隔開。這(zhe)種泵(beng)(beng)的(de)(de)(de)(de)(de)轉(zhuan)(zhuan)子(zi)(zi)每(mei)轉(zhuan)(zhuan)一轉(zhuan)(zhuan),每(mei)個(ge)密(mi)封(feng)工作腔(qiang)完成(cheng)吸(xi)(xi)油(you)(you)(you)(you)和(he)(he)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)動作各兩(liang)次,所以(yi)稱(cheng)為(wei)雙作用(yong)葉片泵(beng)(beng)。泵(beng)(beng)的(de)(de)(de)(de)(de)兩(liang)個(ge)吸(xi)(xi)油(you)(you)(you)(you)區和(he)(he)兩(liang)個(ge)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)區是(shi)徑向(xiang)對稱(cheng)的(de)(de)(de)(de)(de),作用(yong)在(zai)轉(zhuan)(zhuan)子(zi)(zi)上(shang)的(de)(de)(de)(de)(de)液(ye)壓(ya)(ya)(ya)(ya)力徑向(xiang)平衡,所以(yi)又稱(cheng)為(wei)平衡式葉片泵(beng)(beng)。 雙(shuang)作(zuo)(zuo)用(yong)(yong)葉片泵(beng)的瞬時流量是脈動(dong)的,當葉片數為4的倍數時脈動(dong)率小。為此,雙(shuang)作(zuo)(zuo)用(yong)(yong)葉片泵(beng)的葉片數一般都取12或16。 意大利進口ATOS葉片泵部分型(xing)號(hao): 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 |