一、集電環打火的原因及處理
發電(dian)(dian)機(ji)集電(dian)(dian)環打(da)火(huo)是一種常(chang)見的(de)問題,一起來了解了解集電(dian)(dian)環打(da)火(huo)的(de)原因(yin)及處理(li)吧(ba)!
1、集電環打火的原因
發電(dian)機集電(dian)環(huan)由(you)于長時(shi)間(jian)工作,經(jing)常會遭受外部的(de)物理和化學因(yin)素的(de)影響(xiang),從(cong)而導致(zhi)集電(dian)環(huan)表面(mian)的(de)磨損或(huo)者(zhe)積(ji)累了(le)一層氧(yang)化物,造成電(dian)接觸不良或(huo)電(dian)阻增加,最(zui)終導致(zhi)發電(dian)機集電(dian)環(huan)打火(huo)。
2、集電環打火處理
(1)檢查接(jie)線端(duan)子是否正常貼(tie)緊(jin)、接(jie)觸良(liang)好:由于(yu)發(fa)(fa)電(dian)機(ji)集電(dian)環在工(gong)作過程中會不可(ke)避(bi)免地(di)受(shou)到(dao)振(zhen)動和沖擊(ji),因此導致接(jie)線端(duan)子松(song)動或(huo)接(jie)觸不良(liang),會導致集電(dian)環渾濁或(huo)干擾,進而影(ying)響發(fa)(fa)電(dian)機(ji)輸出功率和穩定性。處理方(fang)法(fa)是拆卸發(fa)(fa)電(dian)機(ji)的端(duan)子蓋,檢查集電(dian)環連接(jie)端(duan)點(dian)的線纜是否緊(jin)固牢固。
(2)磨損情況:長期使用會導致發電機(ji)集電環表(biao)面(mian)的(de)磨損、破裂、磨損等問題(ti),需(xu)及時更換。
(3)清(qing)(qing)潔(jie)處理:清(qing)(qing)潔(jie)集(ji)電環(huan)表(biao)面(mian)積累(lei)的(de)(de)氧化(hua)物(wu)能有效(xiao)地減少(shao)接觸電阻,從而減少(shao)發(fa)電機集(ji)電環(huan)打火的(de)(de)情況。處理方法是用專(zhuan)用的(de)(de)銅絲刷將集(ji)電環(huan)表(biao)面(mian)的(de)(de)氧化(hua)物(wu)清(qing)(qing)洗(xi)干凈,或(huo)者用一些(xie)特殊的(de)(de)清(qing)(qing)潔(jie)液(ye)來清(qing)(qing)洗(xi)。
(4)調整發電(dian)(dian)(dian)機的(de)輸(shu)出電(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)流:調整發電(dian)(dian)(dian)機的(de)輸(shu)出電(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)流能(neng)夠使集電(dian)(dian)(dian)環的(de)電(dian)(dian)(dian)流和電(dian)(dian)(dian)壓(ya)更加平穩,從(cong)而(er)減少打火(huo)的(de)可能(neng)性。
二、集電環常見故障及維修
1、 接觸不良
接(jie)觸(chu)(chu)不良是(shi)集(ji)電(dian)(dian)(dian)環故障的(de)(de)(de)常見問題之(zhi)一。當(dang)集(ji)電(dian)(dian)(dian)環和(he)刷子(zi)的(de)(de)(de)接(jie)觸(chu)(chu)不良時,電(dian)(dian)(dian)動機會出現突然(ran)停轉(zhuan)或者失速等現象。接(jie)觸(chu)(chu)不良往(wang)往(wang)是(shi)由(you)于集(ji)電(dian)(dian)(dian)環表面(mian)的(de)(de)(de)污垢、氧(yang)化、磨(mo)損(sun)導(dao)致的(de)(de)(de)。解決方法(fa)是(shi)對集(ji)電(dian)(dian)(dian)環表面(mian)進(jin)行清洗、去(qu)氧(yang)化處(chu)理(li),或者更換集(ji)電(dian)(dian)(dian)環。
2、磨損
集電(dian)(dian)(dian)(dian)環(huan)(huan)的磨損是電(dian)(dian)(dian)(dian)動(dong)機故障的另一(yi)個常(chang)見問題。長期使(shi)(shi)用后,集電(dian)(dian)(dian)(dian)環(huan)(huan)表面會出現(xian)磨損,導致接(jie)觸(chu)不良、電(dian)(dian)(dian)(dian)弧、電(dian)(dian)(dian)(dian)暈等(deng)(deng)問題,影響電(dian)(dian)(dian)(dian)動(dong)機的運(yun)轉。磨損的原(yuan)因(yin)多(duo)種多(duo)樣,例如質量不合格(ge)、使(shi)(shi)用時(shi)間過長、工作環(huan)(huan)境惡劣(lie)、運(yun)行負(fu)荷過大等(deng)(deng)。處理方(fang)法包括更換集電(dian)(dian)(dian)(dian)環(huan)(huan)、調整電(dian)(dian)(dian)(dian)極間隙、加強集電(dian)(dian)(dian)(dian)環(huan)(huan)表面處理等(deng)(deng)。
3、斷裂
集電環的斷裂也是電動機故(gu)障(zhang)的常(chang)見問題(ti)之一。集(ji)(ji)電環斷裂(lie)在使用過(guo)程中往(wang)(wang)往(wang)(wang)是由于負荷過(guo)大(da)、振(zhen)動過(guo)大(da)、設備故(gu)障(zhang)等原因導致(zhi)的。當集(ji)(ji)電環斷裂(lie)時(shi),電動機往(wang)(wang)往(wang)(wang)會出(chu)現異常(chang)響(xiang)聲、煙(yan)霧、火花等問題(ti),需要(yao)立即停機維修。解決方法包(bao)括更換集(ji)(ji)電環、加強集(ji)(ji)電環支撐等。