根據電動機按結構及工作原理的不同，可分為直流電動機，異步電動機和同步電動機。同步電磁制動三項異步電動機還可分為永磁同步電動機、磁阻同步電動機和磁滯同步電動機。異步電磁制動三項異步電動機可分為感(gan)應(ying)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)和(he)交(jiao)流換向器電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)。感(gan)應(ying)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)又分為三相異(yi)(yi)(yi)步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)、單相異(yi)(yi)(yi)步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)和(he)罩極(ji)異(yi)(yi)(yi)步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)等。交(jiao)流換向器電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)又分為單相串勵電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)、交(jiao)直(zhi)流兩用(yong)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)和(he)推斥電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)。直(zhi)流電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)按結(jie)構(gou)及工(gong)作原理可分為無刷(shua)直(zhi)流電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)和(he)有刷(shua)直(zhi)流電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)。

定(ding)子(zi)繞阻采(cai)用(yong)F級絕(jue)緣材料(liao)，端部有(you)(you)可靠的(de)固定(ding)及(ji)捆扎，在(zai)制造過程中(zhong)經過多次匝間脈沖電壓試(shi)(shi)驗及(ji)對地耐壓試(shi)(shi)驗，并(bing)采(cai)用(yong)真(zhen)空壓力浸(jin)漬(zi)(zi)無(wu)溶劑漆(qi)工藝(yi)處(chu)理(li)，的(de)絕(jue)緣性(xing)能優良可靠，機(ji)(ji)械強(qiang)度好，防潮能力強(qiang)。繞線(xian)轉(zhuan)(zhuan)子(zi)采(cai)用(yong)F級絕(jue)緣材料(liao)和真(zhen)空壓力浸(jin)漬(zi)(zi)無(wu)溶劑漆(qi)工藝(yi)處(chu)理(li)，轉(zhuan)(zhuan)子(zi)焊(han)頭和接線(xian)處(chu)全部有(you)(you)靠的(de)絕(jue)緣。軸(zhou)承(cheng)有(you)(you)滾動軸(zhou)承(cheng)和滑動軸(zhou)承(cheng)兩種形式，按照(zhao)電機(ji)(ji)功率大小及(ji)轉(zhuan)(zhuan)速而定(ding)，如(ru)電機(ji)(ji)具有(you)(you)較(jiao)高(gao)的(de)防護等級時，軸(zhou)承(cheng)的(de)防護等級也隨之(zhi)提高(gao)。

每天巡查時看工作電(dian)流的(de)大(da)小和變化，看周圍(wei)有沒有漏水、滴(di)水，會引起電(dian)動(dong)機(ji)絕緣低擊穿(chuan)而燒(shao)(shao)壞(huai)。看風扇端(duan)(duan)蓋、扇葉和電(dian)動(dong)機(ji)外部是否過(guo)臟(zang)需要清(qing)潔(jie)。要確保其冷卻(que)散熱(re)效(xiao)果(guo)。無論誰發現問題，都應及時處理(li)。認真細聽的(de)運(yun)行(xing)聲音(yin)是否異常，因機(ji)房噪音(yin)較(jiao)大(da)，可借(jie)助(zhu)于螺絲刀或(huo)聽棒等輔助(zhu)工具，貼(tie)近(jin)電(dian)動(dong)機(ji)兩端(duan)(duan)聽，如果(guo)經常聽，不但(dan)能發現電(dian)動(dong)機(ji)及其拖動(dong)設備的(de)不良振動(dong)，避免電(dian)動(dong)機(ji)妯承缺油干磨而堵轉、走外圓(yuan)、掃膛燒(shao)(shao)壞(huai)。

起(qi)(qi)重(zhong)用(yong)(yong)（簡稱電動(dong)(dong)機）主要用(yong)(yong)于(yu)(yu)各種型式(shi)的防爆起(qi)(qi)重(zhong)機械(xie)的電力(li)(li)驅(qu)動(dong)(dong)。具有較(jiao)(jiao)大(da)的過載能(neng)力(li)(li)和較(jiao)(jiao)高(gao)(gao)的機械(xie)強度(du)，因此它特別(bie)適用(yong)(yong)于(yu)(yu)那些短時(shi)或斷(duan)(duan)續運(yun)轉、頻(pin)繁起(qi)(qi)動(dong)(dong)、制(zhi)動(dong)(dong)的設備(bei)。起(qi)(qi)重(zhong)用(yong)(yong)（簡稱電動(dong)(dong)機）主要用(yong)(yong)于(yu)(yu)各種型式(shi)的防爆起(qi)(qi)重(zhong)機械(xie)的電力(li)(li)驅(qu)動(dong)(dong)。具有較(jiao)(jiao)大(da)的過載能(neng)力(li)(li)和較(jiao)(jiao)高(gao)(gao)的機械(xie)強度(du)，因此它特別(bie)適用(yong)(yong)于(yu)(yu)那些短時(shi)或斷(duan)(duan)續運(yun)轉、頻(pin)繁起(qi)(qi)動(dong)(dong)、制(zhi)動(dong)(dong)的設備(bei)。