齒輪油泵裝載機竄油的主要原因
作者：鄭州巴特熔體泵有限公司 時間：2017-06-23 12:00:38
齒(chi)(chi)輪(lun)(lun)(lun)油(you)(you)(you)泵(beng)軸(zhou)外伸花鍵與(yu)(yu)變(bian)速箱(xiang)輸出軸(zhou)內(nei)花健有效接觸長度(du)(du)短，而齒(chi)(chi)輪(lun)(lun)(lun)泵(beng)工作(zuo)時(shi)(shi)傳遞(di)的(de)扭矩(ju)較大(da)(da)，其(qi)花鍵承受(shou)大(da)(da)扭矩(ju)而發生(sheng)擠(ji)壓(ya)(ya)磨(mo)(mo)損甚至滾(gun)鍵，產生(sheng)巨熱(re)，以致(zhi)(zhi)造(zao)(zao)成(cheng)骨架(jia)(jia)油(you)(you)(you)封(feng)橡膠唇口燒傷、老化(hua)，從而出現竄(cuan)油(you)(you)(you)。建議主機廠選(xuan)用齒(chi)(chi)輪(lun)(lun)(lun)泵(beng)時(shi)(shi)應(ying)校核齒(chi)(chi)輪(lun)(lun)(lun)泵(beng)軸(zhou)外伸花鍵強度(du)(du)，保證足夠的(de)有效接觸長度(du)(du)。因為(wei)(wei)齒(chi)(chi)輪(lun)(lun)(lun)軸(zhou)軸(zhou)徑與(yu)(yu)密(mi)封(feng)環(huan)內(nei)孔間(jian)(jian)隙(xi)很(hen)小(xiao)，油(you)(you)(you)中(zhong)的(de)較大(da)(da)固體顆粒進(jin)入(ru)(ru)(ru)(ru)其(qi)間(jian)(jian)，造(zao)(zao)成(cheng)密(mi)封(feng)環(huan)內(nei)孔的(de)磨(mo)(mo)損、劃(hua)(hua)傷或隨軸(zhou)旋(xuan)轉，致(zhi)(zhi)使二次密(mi)封(feng)的(de)壓(ya)(ya)力(li)油(you)(you)(you)進(jin)入(ru)(ru)(ru)(ru)低(di)壓(ya)(ya)區(qu)(骨架(jia)(jia)油(you)(you)(you)封(feng)處)，造(zao)(zao)成(cheng)油(you)(you)(you)封(feng)擊(ji)穿，此(ci)(ci)時(shi)(shi)應(ying)過(guo)濾(lv)(lv)或更換新(xin)抗(kang)磨(mo)(mo)液壓(ya)(ya)油(you)(you)(you)。因為(wei)(wei)齒(chi)(chi)輪(lun)(lun)(lun)軸(zhou)軸(zhou)徑與(yu)(yu)密(mi)封(feng)環(huan)內(nei)孔間(jian)(jian)隙(xi)很(hen)小(xiao)，油(you)(you)(you)中(zhong)的(de)較大(da)(da)固體顆粒進(jin)入(ru)(ru)(ru)(ru)其(qi)間(jian)(jian)，造(zao)(zao)成(cheng)密(mi)封(feng)環(huan)內(nei)孔的(de)磨(mo)(mo)損、劃(hua)(hua)傷或隨軸(zhou)旋(xuan)轉，致(zhi)(zhi)使二次密(mi)封(feng)的(de)壓(ya)(ya)力(li)油(you)(you)(you)進(jin)入(ru)(ru)(ru)(ru)低(di)壓(ya)(ya)區(qu)(骨架(jia)(jia)油(you)(you)(you)封(feng)處)，造(zao)(zao)成(cheng)油(you)(you)(you)封(feng)擊(ji)穿，此(ci)(ci)時(shi)(shi)應(ying)過(guo)濾(lv)(lv)或更換新(xin)抗(kang)磨(mo)(mo)液壓(ya)(ya)油(you)(you)(you)。當(dang)主機大(da)(da)負(fu)荷工作(zuo)時(shi)(shi)間(jian)(jian)過(guo)長及油(you)(you)(you)箱(xiang)油(you)(you)(you)面(mian)較低(di)時(shi)(shi)，油(you)(you)(you)溫可升高到100℃，致(zhi)(zhi)使油(you)(you)(you)液變(bian)稀、骨架(jia)(jia)油(you)(you)(you)封(feng)唇口老化(hua)，從而引起(qi)竄(cuan)油(you)(you)(you)；應(ying)定(ding)期檢(jian)查(cha)油(you)(you)(you)箱(xiang)液面(mian)高度(du)(du)，避免(mian)油(you)(you)(you)溫過(guo)高。齒(chi)(chi)輪(lun)(lun)(lun)油(you)(you)(you)泵(beng)外止口與(yu)(yu)變(bian)速泵(beng)內(nei)止口及齒(chi)(chi)輪(lun)(lun)(lun)油(you)(you)(you)泵(beng)外花鍵與(yu)(yu)變(bian)速箱(xiang)花鍵軸(zhou)內(nei)花鍵，兩者間(jian)(jian)隙(xi)配合是否合理(li)，都(dou)對齒(chi)(chi)輪(lun)(lun)(lun)泵(beng)的(de)竄(cuan)油(you)(you)(you)有影響。
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