2CY型(xing)齒(chi)輪泵(beng)適(shi)用于輸(shu)(shu)送(song)各種有潤滑性的(de)液體，溫(wen)(wen)度(du)不(bu)高(gao)于70℃，如需高(gao)溫(wen)(wen)200℃，可配用材(cai)料(liao)即可。本泵(beng)不(bu)適(shi)用于輸(shu)(shu)送(song)腐(fu)蝕(shi)性的(de)、含硬質顆粒或纖維(wei)的(de)、高(gao)度(du)揮發或閃點低的(de)液體，如汽油(you)、苯(ben)等。

2CY型齒輪泵故障分析

▼油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)磨損，膠(jiao)封(feng)(feng)(feng)(feng)(feng)(feng)老化(hua)卸荷(he)片的橡膠(jiao)油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)老化(hua)變質，失(shi)去(qu)彈性(xing)，對高壓(ya)油(you)(you)(you)(you)(you)(you)腔(qiang)和(he)低壓(ya)油(you)(you)(you)(you)(you)(you)腔(qiang)失(shi)去(qu)了密封(feng)(feng)(feng)(feng)(feng)(feng)隔離作(zuo)(zuo)用，會(hui)產(chan)(chan)生(sheng)高壓(ya)油(you)(you)(you)(you)(you)(you)腔(qiang)的油(you)(you)(you)(you)(you)(you)壓(ya)往低壓(ya)油(you)(you)(you)(you)(you)(you)腔(qiang)，稱為(wei)“內漏”，它降低了2CY型齒(chi)輪泵的工(gong)作(zuo)(zuo)壓(ya)力(li)和(he)流量。2CY型齒(chi)輪泵它的正常(chang)工(gong)作(zuo)(zuo)壓(ya)力(li)為(wei)100~110kg/平(ping)方厘米，正常(chang)輸(shu)油(you)(you)(you)(you)(you)(you)量是(shi)(shi)46L/min，標準的卸荷(he)片橡膠(jiao)油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)是(shi)(shi)57×43。自緊油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)是(shi)(shi)PG25×42×10的骨架式油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)，它的損壞或(huo)年久失(shi)效，空氣便從油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)與(yu)主軸(zhou)軸(zhou)頸之間(jian)的縫隙或(huo)從進(jin)油(you)(you)(you)(you)(you)(you)口接盤與(yu)2CY型齒(chi)輪泵殼體結合處(chu)被吸(xi)入2CY型齒(chi)輪泵，經回油(you)(you)(you)(you)(you)(you)管進(jin)入油(you)(you)(you)(you)(you)(you)箱(xiang)，在油(you)(you)(you)(you)(you)(you)箱(xiang)中(zhong)產(chan)(chan)生(sheng)大量氣泡。會(hui)造成(cheng)油(you)(you)(you)(you)(you)(you)箱(xiang)中(zhong)的油(you)(you)(you)(you)(you)(you)液(ye)減(jian)少，發(fa)動機油(you)(you)(you)(you)(you)(you)底槽中(zhong)油(you)(you)(you)(you)(you)(you)液(ye)增(zeng)多現象，使農具提升緩慢或(huo)不能提升。換(huan)油(you)(you)(you)(you)(you)(you)封(feng)(feng)(feng)(feng)(feng)(feng)才可排除此故障(zhang)。

▼2CY型齒(chi)輪(lun)(lun)泵(beng)內(nei)(nei)部(bu)零(ling)件磨(mo)損(sun)(sun)2CY型齒(chi)輪(lun)(lun)泵(beng)內(nei)(nei)部(bu)零(ling)件磨(mo)損(sun)(sun)會造成內(nei)(nei)漏。其中浮(fu)動(dong)軸套與齒(chi)輪(lun)(lun)端面之間泄(xie)漏面積(ji)大，是造成內(nei)(nei)漏的(de)主要(yao)部(bu)位。這(zhe)部(bu)分漏損(sun)(sun)量占(zhan)全(quan)(quan)部(bu)內(nei)(nei)漏的(de)50%~70%左右。磨(mo)損(sun)(sun)內(nei)(nei)漏的(de)齒(chi)輪(lun)(lun)泵(beng)其容積(ji)效(xiao)率(lv)下(xia)降，2CY型齒(chi)輪(lun)(lun)泵(beng)輸(shu)出功(gong)率(lv)低(di)于輸(shu)入功(gong)率(lv)。其損(sun)(sun)耗全(quan)(quan)部(bu)轉變為熱能(neng)，因此會引起2CY型齒(chi)輪(lun)(lun)泵(beng)過(guo)熱。若將結合平面壓緊，因工作時浮(fu)動(dong)軸套會有少量運動(dong)而造成磨(mo)損(sun)(sun)，結果使農具提升(sheng)(sheng)緩(huan)慢(man)或不(bu)能(neng)提升(sheng)(sheng)，這(zhe)樣的(de)浮(fu)動(dong)軸套換(huan)或修理。

▼2CY型齒輪泵供油(you)量不足或(huo)無油(you)壓現(xian)象(xiang)：工(gong)作裝(zhuang)置提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)緩慢，提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)時發(fa)抖(dou)或(huo)不能提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)；油(you)箱(xiang)或(huo)油(you)管(guan)內有氣泡；提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)時液壓系統發(fa)出“唧、唧”聲音；拖拉機剛啟動時工(gong)作裝(zhuang)置能提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)，工(gong)作一(yi)段(duan)時間油(you)溫升(sheng)(sheng)(sheng)(sheng)高后(hou)，則提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)緩慢或(huo)不能提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)；輕負荷時能提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)，重負荷時不能提(ti)(ti)(ti)(ti)(ti)升(sheng)(sheng)(sheng)(sheng)伸縮舞臺。

▼2CY型(xing)(xing)齒(chi)(chi)(chi)輪(lun)泵(beng)殼體(ti)的(de)磨(mo)損(sun)主要是浮動(dong)軸(zhou)套孔的(de)磨(mo)損(sun)(齒(chi)(chi)(chi)輪(lun)軸(zhou)與軸(zhou)套的(de)正(zheng)常間隙是0.09~0.175mm，不得超過0。20mm)。齒(chi)(chi)(chi)輪(lun)工作受(shou)壓力油的(de)作用(yong)，齒(chi)(chi)(chi)輪(lun)尖(jian)部靠近2CY型(xing)(xing)齒(chi)(chi)(chi)輪(lun)泵(beng)殼體(ti)，磨(mo)損(sun)泵(beng)體(ti)的(de)低壓腔部分。