我(wo)們使用(yong)防(fang)爆(bao)振動(dong)電(dian)機(ji)時，如果出現(xian)掃膛現(xian)象(xiang)時。***要(yao)注(zhu)意一點(dian)。不可采取將轉(zhuan)子外圓(yuan)車小的(de)辦(ban)法來排除。我(wo)們解決問題前。要(yao)先了解引(yin)起(qi)這種情的(de)原(yuan)因;我(wo)們知道(dao)掃膛一般是由于防(fang)爆(bao)電(dian)機(ji)長期(qi)使用(yong)，引(yin)起(qi)防(fang)爆(bao)振動(dong)電(dian)機(ji)軸(zhou)承磨損(sun)，這樣***會引(yin)起(qi)轉(zhuan)子下沉或機(ji)軸(zhou)的(de)撓度過(guo)大(da)使轉(zhuan)子偏(pian)心所致。

如果簡單地將防爆振(zhen)動電(dian)機(ji)轉(zhuan)(zhuan)子(zi)外圓車小，會增(zeng)(zeng)大定(ding)、轉(zhuan)(zhuan)子(zi)之(zhi)間的氣隙，使勵磁電(dian)流增(zeng)(zeng)加，從而造成電(dian)動機(ji)的運行性能惡化(hua)，效(xiao)率和功率因數降低。

防(fang)爆(bao)(bao)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)在振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)體上按照(zhao)不同的(de)安裝(zhuang)組合(he)(he)形式，可產生(sheng)不同的(de)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌(gui)跡(ji)(ji)，YBZJ粉(fen)塵防(fang)爆(bao)(bao)型(xing)(xing)(xing)三相(xiang)異(yi)步振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)供(gong)應(ying)商，從而有(you)效完成(cheng)各(ge)種(zhong)作業。與振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)械(xie)的(de)另一種(zhong)激振(zhen)(zhen)(zhen)(zhen)(zhen)源振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器類似(si)，如果是(shi)安裝(zhuang)單一的(de)防(fang)爆(bao)(bao)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)就(jiu)會(hui)產生(sheng)圓運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)或(huo)者(zhe)橢圓運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌(gui)跡(ji)(ji);如果安裝(zhuang)兩(liang)(liang)個相(xiang)同型(xing)(xing)(xing)號同轉速但轉向相(xiang)反的(de)防(fang)爆(bao)(bao)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)就(jiu)會(hui)產生(sheng)直線運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌(gui)跡(ji)(ji);還可以根據需要使用兩(liang)(liang)臺不同型(xing)(xing)(xing)號且轉速不同的(de)防(fang)爆(bao)(bao)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)設(she)備產生(sheng)復合(he)(he)型(xing)(xing)(xing)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌(gui)跡(ji)(ji)，一般(ban)有(you)雙(shuang)頻復合(he)(he)型(xing)(xing)(xing)及雙(shuang)幅(fu)(fu)復合(he)(he)型(xing)(xing)(xing)兩(liang)(liang)種(zhong)形式。例如將兩(liang)(liang)個防(fang)爆(bao)(bao)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)分(fen)裝(zhuang)于(yu)篩(shai)分(fen)設(she)備的(de)進(jin)料端和出料端，使進(jin)料端呈(cheng)現大振(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)低頻率的(de)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，上海粉(fen)塵防(fang)爆(bao)(bao)型(xing)(xing)(xing)三相(xiang)異(yi)步振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)供(gong)應(ying)商，同時出料端呈(cheng)現小振(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)高頻率振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，篩(shai)分(fen)機(ji)(ji)(ji)械(xie)的(de)中部重疊兩(liang)(liang)種(zhong)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，YBZJ粉(fen)塵防(fang)爆(bao)(bao)型(xing)(xing)(xing)三相(xiang)異(yi)步振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)供(gong)應(ying)商，使篩(shai)分(fen)機(ji)(ji)(ji)械(xie)起到更有(you)效的(de)篩(shai)分(fen)作用。

{粉塵防爆(bao)型(xing)三相異步振動(dong)(dong)電機(ji)供應(ying)商空載能啟(qi)(qi)動(dong)(dong)或在(zai)外力幫助下能啟(qi)(qi)動(dong)(dong)，但啟(qi)(qi)動(dong)(dong)遲緩、轉向不定

可能原因：

1.三相電機缺相

2.單相電機輔繞組電路(lu)故障:繞組斷線、離心開關(guan)電路(lu)或(huo)觸點(dian)故障、電容(rong)器損壞(huai)或(huo)斷線

處理方法：

1.檢查電源及電路

2.檢查(cha)修理繞(rao)組、離(li)心開關、電容器或相(xiang)應的連(lian)接(jie)電路各部分

帶負(fu)載運行(xing)時轉速低于(yu)額定值(zhi)

可能原因：

1.負載太大

2.電源電壓太低

3.籠型轉子斷條

4.電路連接(jie)不牢、接(jie)觸不好(hao)

5.繞組接線(xian)錯(cuo)誤(wu)、線(xian)圈(quan)短路

處理方法：

1.檢(jian)查傳動部分及工作機械是(shi)否有故障并排(pai)除

2.測量(liang)電(dian)壓(ya)，解(jie)決電(dian)源供電(dian)質量(liang)

3.更換轉子

4.檢查、排除

5.修理繞組