行業資訊
蕪湖電梯維修保養人員的工作內容
隨著科技的進步,電梯技術水平不斷提高,其運行的可靠性明顯加大。在維修保養中,一些比較典型的停梯故障需要及時排出。
1、斷相引起停梯
當三(san)相電(dian)(dian)(dian)源出(chu)現(xian)斷(duan)相時(shi),相序繼電(dian)(dian)(dian)器(qi)(qi)動作切斷(duan)a全(quan)回路,使電(dian)(dian)(dian)梯(ti)停(ting)(ting)止(zhi)運行(xing)(xing)。這種故(gu)障多(duo)出(chu)在繼電(dian)(dian)(dian)器(qi)(qi)邏輯控(kong)制的電(dian)(dian)(dian)梯(ti),因(yin)為(wei)是老(lao)式電(dian)(dian)(dian)梯(ti),電(dian)(dian)(dian)源開(kai)關多(duo)為(wei)閘刀式,電(dian)(dian)(dian)源經過j限開(kai)關,再送至電(dian)(dian)(dian)梯(ti)控(kong)制柜、電(dian)(dian)(dian)源流經的兩個開(kai)關,共六根保(bao)險(xian)絲。電(dian)(dian)(dian)梯(ti)運行(xing)(xing)、起(qi)動,電(dian)(dian)(dian)流都很大。經過一段時(shi)間運行(xing)(xing),如維保(bao)人(ren)員不及時(shi)檢查,保(bao)險(xian)絲與螺絲連接(jie)處易(yi)燒(shao)斷(duan),電(dian)(dian)(dian)梯(ti)斷(duan)相,引起(qi)停(ting)(ting)梯(ti),輕則關人(ren),重則發生事故(gu)。
主要預防措施:
①保養人(ren)員要經常(chang)巡視檢查,發現可疑(yi)之處,及時修(xiu)理(li),出現發燙、打火花諸類(lei)情形(xing)應立即更(geng)換(huan)。
②建議用(yong)戶將閘刀開關更換為相當容量的空氣開關。
③現在(zai)(zai)設(she)計的(de)電梯都(dou)沒有電源j限開(kai)關(guan)(guan),筆者認(ren)為,可(ke)以就(jiu)a全回路(lu)略作改動(dong),即(ji)加裝上、下j限電氣開(kai)關(guan)(guan)串聯(lian)在(zai)(zai)a全回路(lu)中,拆除原j限開(kai)關(guan)(guan)。
2、漲繩輪(lun)開(kai)關斷開(kai)引(yin)起(qi)停梯
像曳引繩(sheng)一(yi)樣,限速(su)器繩(sheng)同樣會在使用(yong)過程(cheng)中伸長。由于底(di)坑漲繩(sheng)輪(lun)重錘的(de)作用(yong),漲繩(sheng)輪(lun)開關(guan)打(da)板偏移,直到(dao)斷開開關(guan)導致停梯。
對于電梯安裝的新裝電梯,電梯安裝人員須(xu)每月檢查(cha)一(yi)(yi)次,運行一(yi)(yi)年以后,三個月檢查(cha)一(yi)(yi)次,如(ru)此(ci)即(ji)可防(fang)患于未然(ran)。由于廳(ting)門(men)密封不(bu)嚴(yan),井道有(you)墻洞等各種原因,老鼠竄(cuan)入井道時有(you)的會(hui)摔死,有(you)的掉入底坑因想(xiang)方設法逃(tao)出(chu)竄(cuan)入繩輪而卡入其中(zhong),電(dian)梯向下(xia)運行導致a全鉗開(kai)關(guan)動作,有(you)的限速器(qi)開(kai)關(guan)也一(yi)(yi)起聯動。