直(zhi)流(liu)減速(su)機(ji)(ji)和交流(liu)減速(su)機(ji)(ji)是(shi)兩(liang)種(zhong)應用(yong)廣(guang)泛的驅(qu)動設備，兩(liang)者之間的技術參數、結構(gou)特點、驅(qu)動原理(li)、應用(yong)場(chang)景等都不一樣，下面詳細介紹了兩(liang)種(zhong)電機(ji)(ji)。

直流減速電機在(zai)(zai)機(ji)電(dian)行業是(shi)比較(jiao)常(chang)見的(de)(de)微型減速(su)(su)電(dian)機(ji),直流(liu)(liu)減速(su)(su)機(ji)是(shi)在(zai)(zai)普通(tong)(tong)直流(liu)(liu)電(dian)機(ji)的(de)(de)基(ji)礎上(shang)，加上(shang)配套齒(chi)(chi)輪減速(su)(su)箱(xiang)(xiang)。齒(chi)(chi)輪減速(su)(su)箱(xiang)(xiang)的(de)(de)作(zuo)(zuo)用(yong)(yong)是(shi)，提(ti)供較(jiao)低的(de)(de)轉(zhuan)(zhuan)速(su)(su)，較(jiao)大(da)的(de)(de)力矩(ju)。同(tong)時(shi)，齒(chi)(chi)輪箱(xiang)(xiang)不(bu)同(tong)的(de)(de)減速(su)(su)比可以(yi)提(ti)供不(bu)同(tong)的(de)(de)轉(zhuan)(zhuan)速(su)(su)和(he)力矩(ju)。這(zhe)大(da)大(da)提(ti)高了，直流(liu)(liu)電(dian)機(ji)在(zai)(zai)自動(dong)(dong)(dong)化行業中的(de)(de)使用(yong)(yong)率。直流(liu)(liu)電(dian)機(ji)的(de)(de)結構應由(you)定子和(he)轉(zhuan)(zhuan)子兩大(da)部(bu)分組(zu)成。直流(liu)(liu)電(dian)機(ji)運(yun)行時(shi)靜止不(bu)動(dong)(dong)(dong)的(de)(de)部(bu)分稱為定子，定子的(de)(de)主要作(zuo)(zuo)用(yong)(yong)是(shi)產(chan)生(sheng)(sheng)磁場，由(you)機(ji)座、主磁極、換向極、端蓋、軸(zhou)承(cheng)和(he)電(dian)刷裝(zhuang)置等組(zu)成。運(yun)行時(shi)轉(zhuan)(zhuan)動(dong)(dong)(dong)的(de)(de)部(bu)分稱為轉(zhuan)(zhuan)子，其(qi)主要作(zuo)(zuo)用(yong)(yong)是(shi)產(chan)生(sheng)(sheng)電(dian)磁轉(zhuan)(zhuan)矩(ju)和(he)感應電(dian)動(dong)(dong)(dong)勢(shi)，是(shi)直流(liu)(liu)電(dian)機(ji)進行能量轉(zhuan)(zhuan)換的(de)(de)樞(shu)紐，所以(yi)通(tong)(tong)常(chang)又(you)稱為電(dian)樞(shu)，由(you)轉(zhuan)(zhuan)軸(zhou)、電(dian)樞(shu)鐵(tie)心、電(dian)樞(shu)繞組(zu)、換向器和(he)風(feng)扇等組(zu)成。齒(chi)(chi)輪箱(xiang)(xiang)分別可采用(yong)(yong)行星齒(chi)(chi)輪箱(xiang)(xiang)、圓柱齒(chi)(chi)輪箱(xiang)(xiang)等，齒(chi)(chi)輪箱(xiang)(xiang)由(you)多個大(da)小齒(chi)(chi)輪組(zu)嚙(nie)合組(zu)裝(zhuang)而成的(de)(de)直流(liu)(liu)減速(su)(su)機(ji)。

直(zhi)流(liu)減速機用(yong)途：微型直(zhi)流(liu)減速機廣(guang)泛應用(yong)在智(zhi)能(neng)汽車、智(zhi)能(neng)家(jia)居(ju)、智(zhi)能(neng)通訊設備(bei)、電子產品、智(zhi)能(neng)醫療設備(bei)、智(zhi)能(neng)機器人、辦公設備(bei)、家(jia)庭影音設備(bei)等(deng)；大型直(zhi)流(liu)減速機廣(guang)泛應用(yong)冶金、礦山、起重、運輸、水泥、建筑、化(hua)工(gong)、紡織、印(yin)染、制藥等(deng)各(ge)種通用(yong)機械設備(bei)的減速傳動機構。

交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是一個非(fei)常廣義(yi)分(fen)類，電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)本身的(de)種(zhong)(zhong)類就是非(fei)常大的(de)，交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)本身也(ye)(ye)可以(yi)(yi)分(fen)低(di)(di)速(su)(su)(su)跟(gen)高(gao)(gao)(gao)(gao)速(su)(su)(su)，低(di)(di)速(su)(su)(su)的(de)可以(yi)(yi)叫(jiao)低(di)(di)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)、交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)低(di)(di)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，高(gao)(gao)(gao)(gao)速(su)(su)(su)的(de)可以(yi)(yi)叫(jiao)高(gao)(gao)(gao)(gao)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，高(gao)(gao)(gao)(gao)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)，交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)高(gao)(gao)(gao)(gao)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，而(er)高(gao)(gao)(gao)(gao)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)又可以(yi)(yi)被稱為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)主軸(zhou)，高(gao)(gao)(gao)(gao)速(su)(su)(su)電(dian)(dian)(dian)(dian)(dian)(dian)主軸(zhou)等(deng)。交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)由定子(zi)和(he)轉(zhuan)子(zi)組(zu)成，交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)分(fen)為(wei)同(tong)步(bu)交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)和(he)感應(ying)(ying)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)兩(liang)種(zhong)(zhong)。兩(liang)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)均為(wei)定子(zi)側繞(rao)組(zu)通(tong)(tong)入交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)產生(sheng)旋轉(zhuan)磁場，但同(tong)步(bu)交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)的(de)轉(zhuan)子(zi)繞(rao)組(zu)通(tong)(tong)常需要激(ji)磁機(ji)(ji)(ji)需要供給直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)（激(ji)磁電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)）；而(er)感應(ying)(ying)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)則轉(zhuan)子(zi)繞(rao)組(zu)則無(wu)需通(tong)(tong)入電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。交(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)工作效(xiao)率(lv)較(jiao)高(gao)(gao)(gao)(gao)，又沒(mei)有煙塵、氣(qi)味，不污染環境，噪(zao)聲也(ye)(ye)較(jiao)小。由于它的(de)一系列優點，所(suo)以(yi)(yi)在工農業生(sheng)產、交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)運(yun)輸、國防、商業及家用電(dian)(dian)(dian)(dian)(dian)(dian)器、醫(yi)療電(dian)(dian)(dian)(dian)(dian)(dian)器設備等(deng)各方面(mian)廣泛(fan)應(ying)(ying)用。