一、單作(zuo)用葉片泵(beng)的工作(zuo)原理: ATOS葉(xie)(xie)(xie)(xie)片(pian)泵(beng)由轉(zhuan)(zhuan)子(zi)(zi)(zi)1、定(ding)(ding)(ding)子(zi)(zi)(zi)2、葉(xie)(xie)(xie)(xie)片(pian)3、配油(you)盤和端蓋等(deng)部(bu)(bu)件所組成。定(ding)(ding)(ding)子(zi)(zi)(zi)的內(nei)表(biao)面是(shi)圓柱形孔。轉(zhuan)(zhuan)子(zi)(zi)(zi)和定(ding)(ding)(ding)子(zi)(zi)(zi)之(zhi)間(jian)(jian)存在著偏心。葉(xie)(xie)(xie)(xie)片(pian)在轉(zhuan)(zhuan)子(zi)(zi)(zi)的槽內(nei)可(ke)靈活滑動,在轉(zhuan)(zhuan)子(zi)(zi)(zi)轉(zhuan)(zhuan)動時的離心力(li)以及通入(ru)葉(xie)(xie)(xie)(xie)片(pian)根部(bu)(bu)壓(ya)(ya)力(li)油(you)的作用下,葉(xie)(xie)(xie)(xie)片(pian)頂部(bu)(bu)貼緊(jin)在定(ding)(ding)(ding)子(zi)(zi)(zi)內(nei)表(biao)面上,于(yu)是(shi)兩相鄰葉(xie)(xie)(xie)(xie)片(pian)、配油(you)盤、定(ding)(ding)(ding)子(zi)(zi)(zi)和轉(zhuan)(zhuan)子(zi)(zi)(zi)間(jian)(jian)便(bian)形成了一(yi)個(ge)個(ge)密(mi)封的工作腔。當轉(zhuan)(zhuan)子(zi)(zi)(zi)按(an)逆(ni)時針方向旋轉(zhuan)(zhuan)時,圖右側(ce)(ce)的葉(xie)(xie)(xie)(xie)片(pian)向外伸出,密(mi)封工作腔容積逐漸(jian)增大,產生真空,于(yu)是(shi)通過吸油(you)口6和配油(you)盤5上窗(chuang)口將油(you)吸入(ru)。而(er)在圖的左側(ce)(ce)。葉(xie)(xie)(xie)(xie)片(pian)往里(li)縮(suo)進,密(mi)封腔的容積逐漸(jian)縮(suo)小,密(mi)封腔中的油(you)液經(jing)配油(you)盤另一(yi)窗(chuang)口和壓(ya)(ya)油(you)口1被壓(ya)(ya)出而(er)輸(shu)出到(dao)系統中去(qu)。這種泵(beng)在轉(zhuan)(zhuan)子(zi)(zi)(zi)轉(zhuan)(zhuan)一(yi)轉(zhuan)(zhuan)過程中,吸油(you)壓(ya)(ya)油(you)各一(yi)次,故稱單作用泵(beng)。轉(zhuan)(zhuan)子(zi)(zi)(zi)受(shou)到(dao)徑(jing)向液壓(ya)(ya)不平衡(heng)作用力(li),故又稱非平衡(heng)式泵(beng),其軸承負載較大。改變定(ding)(ding)(ding)子(zi)(zi)(zi)和轉(zhuan)(zhuan)子(zi)(zi)(zi)間(jian)(jian)的偏心量,便(bian)可(ke)改變泵(beng)的排量,故這種泵(beng)都是(shi)變量泵(beng)。 二、雙作用葉片泵(beng)的(de)工作原理(li): ATOS葉片(pian)(pian)泵(beng)(beng)的(de)(de)作(zuo)用原理(li)和(he)(he)單作(zuo)用葉片(pian)(pian)泵(beng)(beng)相似,不(bu)同之(zhi)處(chu)只(zhi)在(zai)于定子表(biao)面(mian)是由兩(liang)(liang)段(duan)長半(ban)徑圓弧、兩(liang)(liang)段(duan)短半(ban)徑圓弧和(he)(he)四(si)段(duan)過(guo)渡曲線八個(ge)(ge)(ge)(ge)部(bu)分組成,且定子和(he)(he)轉子是同心的(de)(de)。在(zai)圖示轉子順時針方向(xiang)旋轉的(de)(de)情況(kuang)下,密封工作(zuo)腔的(de)(de)容(rong)積在(zai)左上(shang)(shang)角(jiao)和(he)(he)右下角(jiao)處(chu)逐漸增(zeng)大,為(wei)(wei)吸油(you)(you)區,在(zai)左下角(jiao)和(he)(he)右上(shang)(shang)角(jiao)處(chu)逐漸減小,為(wei)(wei)壓(ya)油(you)(you)區;吸油(you)(you)區和(he)(he)壓(ya)油(you)(you)區之(zhi)間有一(yi)段(duan)封油(you)(you)區把它(ta)們(men)隔開。這種泵(beng)(beng)的(de)(de)轉子每轉一(yi)轉,每個(ge)(ge)(ge)(ge)密封工作(zuo)腔完成吸油(you)(you)和(he)(he)壓(ya)油(you)(you)動作(zuo)各兩(liang)(liang)次(ci),所以稱為(wei)(wei)雙作(zuo)用葉片(pian)(pian)泵(beng)(beng)。泵(beng)(beng)的(de)(de)兩(liang)(liang)個(ge)(ge)(ge)(ge)吸油(you)(you)區和(he)(he)兩(liang)(liang)個(ge)(ge)(ge)(ge)壓(ya)油(you)(you)區是徑向(xiang)對稱的(de)(de),作(zuo)用在(zai)轉子上(shang)(shang)的(de)(de)液壓(ya)力徑向(xiang)平衡,所以又稱為(wei)(wei)平衡式葉片(pian)(pian)泵(beng)(beng)。 雙作(zuo)(zuo)用葉片泵的(de)(de)(de)瞬時流(liu)量是脈(mo)動(dong)的(de)(de)(de),當(dang)葉片數(shu)為4的(de)(de)(de)倍數(shu)時脈(mo)動(dong)率小。為此,雙作(zuo)(zuo)用葉片泵的(de)(de)(de)葉片數(shu)一般都(dou)取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 |