一、單作(zuo)用葉片(pian)泵的(de)工作(zuo)原理: ATOS葉(xie)(xie)片(pian)(pian)(pian)泵(beng)(beng)由轉(zhuan)子(zi)(zi)(zi)(zi)1、定(ding)子(zi)(zi)(zi)(zi)2、葉(xie)(xie)片(pian)(pian)(pian)3、配(pei)油(you)盤(pan)(pan)和(he)端蓋等(deng)部(bu)件所組成。定(ding)子(zi)(zi)(zi)(zi)的(de)內表面是(shi)(shi)圓柱形(xing)孔。轉(zhuan)子(zi)(zi)(zi)(zi)和(he)定(ding)子(zi)(zi)(zi)(zi)之間(jian)存在(zai)(zai)著偏心(xin)(xin)。葉(xie)(xie)片(pian)(pian)(pian)在(zai)(zai)轉(zhuan)子(zi)(zi)(zi)(zi)的(de)槽內可靈活滑(hua)動(dong)(dong),在(zai)(zai)轉(zhuan)子(zi)(zi)(zi)(zi)轉(zhuan)動(dong)(dong)時的(de)離心(xin)(xin)力(li)(li)以及(ji)通(tong)入(ru)葉(xie)(xie)片(pian)(pian)(pian)根部(bu)壓力(li)(li)油(you)的(de)作用下,葉(xie)(xie)片(pian)(pian)(pian)頂部(bu)貼緊在(zai)(zai)定(ding)子(zi)(zi)(zi)(zi)內表面上,于是(shi)(shi)兩相鄰葉(xie)(xie)片(pian)(pian)(pian)、配(pei)油(you)盤(pan)(pan)、定(ding)子(zi)(zi)(zi)(zi)和(he)轉(zhuan)子(zi)(zi)(zi)(zi)間(jian)便形(xing)成了一個個密封(feng)(feng)(feng)的(de)工作腔(qiang)(qiang)。當轉(zhuan)子(zi)(zi)(zi)(zi)按逆(ni)時針方向旋轉(zhuan)時,圖右側的(de)葉(xie)(xie)片(pian)(pian)(pian)向外伸(shen)出,密封(feng)(feng)(feng)工作腔(qiang)(qiang)容積逐漸增大(da),產生(sheng)真空(kong),于是(shi)(shi)通(tong)過吸油(you)口(kou)6和(he)配(pei)油(you)盤(pan)(pan)5上窗口(kou)將(jiang)油(you)吸入(ru)。而(er)在(zai)(zai)圖的(de)左側。葉(xie)(xie)片(pian)(pian)(pian)往里縮進,密封(feng)(feng)(feng)腔(qiang)(qiang)的(de)容積逐漸縮小,密封(feng)(feng)(feng)腔(qiang)(qiang)中的(de)油(you)液經配(pei)油(you)盤(pan)(pan)另一窗口(kou)和(he)壓油(you)口(kou)1被壓出而(er)輸出到系統(tong)中去。這種(zhong)泵(beng)(beng)在(zai)(zai)轉(zhuan)子(zi)(zi)(zi)(zi)轉(zhuan)一轉(zhuan)過程中,吸油(you)壓油(you)各一次,故稱單作用泵(beng)(beng)。轉(zhuan)子(zi)(zi)(zi)(zi)受到徑向液壓不平衡作用力(li)(li),故又稱非平衡式泵(beng)(beng),其軸承(cheng)負載較大(da)。改變(bian)定(ding)子(zi)(zi)(zi)(zi)和(he)轉(zhuan)子(zi)(zi)(zi)(zi)間(jian)的(de)偏心(xin)(xin)量,便可改變(bian)泵(beng)(beng)的(de)排量,故這種(zhong)泵(beng)(beng)都是(shi)(shi)變(bian)量泵(beng)(beng)。 二、雙作(zuo)用葉片泵的(de)工作(zuo)原理: ATOS葉(xie)(xie)片(pian)泵的(de)(de)(de)作(zuo)(zuo)用原理和(he)(he)(he)單(dan)作(zuo)(zuo)用葉(xie)(xie)片(pian)泵相似,不同之(zhi)處(chu)只在于定子(zi)(zi)表(biao)面是由兩(liang)段長半徑(jing)圓弧(hu)、兩(liang)段短半徑(jing)圓弧(hu)和(he)(he)(he)四段過渡曲線八(ba)個(ge)部分組成(cheng),且定子(zi)(zi)和(he)(he)(he)轉(zhuan)(zhuan)子(zi)(zi)是同心(xin)的(de)(de)(de)。在圖(tu)示轉(zhuan)(zhuan)子(zi)(zi)順時(shi)針方向旋轉(zhuan)(zhuan)的(de)(de)(de)情況下,密(mi)封(feng)工(gong)作(zuo)(zuo)腔(qiang)的(de)(de)(de)容積在左上(shang)角(jiao)(jiao)和(he)(he)(he)右(you)下角(jiao)(jiao)處(chu)逐(zhu)漸(jian)增大,為(wei)吸(xi)油(you)(you)(you)區,在左下角(jiao)(jiao)和(he)(he)(he)右(you)上(shang)角(jiao)(jiao)處(chu)逐(zhu)漸(jian)減(jian)小,為(wei)壓油(you)(you)(you)區;吸(xi)油(you)(you)(you)區和(he)(he)(he)壓油(you)(you)(you)區之(zhi)間有一段封(feng)油(you)(you)(you)區把它們隔開。這種泵的(de)(de)(de)轉(zhuan)(zhuan)子(zi)(zi)每轉(zhuan)(zhuan)一轉(zhuan)(zhuan),每個(ge)密(mi)封(feng)工(gong)作(zuo)(zuo)腔(qiang)完(wan)成(cheng)吸(xi)油(you)(you)(you)和(he)(he)(he)壓油(you)(you)(you)動作(zuo)(zuo)各(ge)兩(liang)次,所(suo)以稱(cheng)為(wei)雙作(zuo)(zuo)用葉(xie)(xie)片(pian)泵。泵的(de)(de)(de)兩(liang)個(ge)吸(xi)油(you)(you)(you)區和(he)(he)(he)兩(liang)個(ge)壓油(you)(you)(you)區是徑(jing)向對稱(cheng)的(de)(de)(de),作(zuo)(zuo)用在轉(zhuan)(zhuan)子(zi)(zi)上(shang)的(de)(de)(de)液壓力(li)徑(jing)向平衡,所(suo)以又稱(cheng)為(wei)平衡式葉(xie)(xie)片(pian)泵。 雙(shuang)(shuang)作(zuo)用葉(xie)片(pian)泵(beng)的(de)(de)瞬(shun)時流(liu)量是脈動的(de)(de),當葉(xie)片(pian)數為4的(de)(de)倍數時脈動率小。為此,雙(shuang)(shuang)作(zuo)用葉(xie)片(pian)泵(beng)的(de)(de)葉(xie)片(pian)數一般(ban)都取12或16。 意大利進口ATOS葉片泵部(bu)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 |