電機是驅動電機，減速器是齒輪箱，提供減速、提升扭矩功能；驅動電機通常需要搭載減速器一起使用，這種集合體稱為減速電機，這是(shi)一樣應用非常廣泛(fan)的(de)驅(qu)動減速(su)設備(bei)，下面分別(bie)介紹電(dian)機、減速(su)器、減速(su)電(dian)機的(de)區別(bie)。

電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)是(shi)指是(shi)一種高(gao)轉速輸出的驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)，驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)門類繁(fan)多，大(da)體可分為直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、自態角(jiao)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、步進(jin)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、旋轉變(bian)壓(ya)器(qi)、軸角(jiao)編碼(ma)器(qi)、交直流(liu)兩(liang)用電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、測速發電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)、感應同步器(qi)、直線電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)、壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)組、其他(ta)特種電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)等(deng)13大(da)類。驅動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)綜(zong)合了電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)、微電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、計算機(ji)(ji)(ji)(ji)、自動(dong)(dong)(dong)(dong)(dong)控制、精密機(ji)(ji)(ji)(ji)械、新(xin)材料等(deng)多門學科的高(gao)新(xin)技(ji)術(shu)行業，尤其是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)和新(xin)材料技(ji)術(shu)的應用促進(jin)了電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)技(ji)術(shu)進(jin)步。

減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)通常(chang)是(shi)指齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)箱，齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)箱內部由多(duo)個齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)組(zu)(zu)組(zu)(zu)裝而(er)成(cheng)；減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)是(shi)一種(zhong)由封閉在剛(gang)性殼體(ti)內的(de)齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)傳動、蝸桿傳動、齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)-蝸桿傳動所組(zu)(zu)成(cheng)的(de)獨立部件(jian)，常(chang)用作(zuo)原(yuan)動件(jian)與(yu)工作(zuo)機之間(jian)的(de)減(jian)(jian)速(su)(su)傳動裝置?。在原(yuan)動機和(he)工作(zuo)機或(huo)執(zhi)行(xing)機構(gou)之間(jian)起(qi)匹配轉(zhuan)速(su)(su)和(he)傳遞轉(zhuan)矩的(de)作(zuo)用，在現代機械中(zhong)應用極為(wei)廣(guang)泛。減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)的(de)種(zhong)類(lei)繁多(duo)，按(an)照傳動類(lei)型可(ke)分(fen)(fen)為(wei)齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)、蝸桿減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)和(he)行(xing)星齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)；按(an)照傳動級數不同可(ke)分(fen)(fen)為(wei)單級和(he)多(duo)級減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)；按(an)照齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)形(xing)狀可(ke)分(fen)(fen)為(wei)圓(yuan)柱(zhu)齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)、圓(yuan)錐齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)和(he)圓(yuan)錐－圓(yuan)柱(zhu)齒(chi)(chi)輪(lun)(lun)(lun)(lun)(lun)(lun)減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)；按(an)照傳動的(de)布(bu)置形(xing)式又(you)可(ke)分(fen)(fen)為(wei)展開式減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)、分(fen)(fen)流(liu)式減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)和(he)同軸式減(jian)(jian)速(su)(su)器(qi)(qi)(qi)(qi)。

減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)是由驅動電(dian)(dian)機(ji)(ji)(ji)(ji)、減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)器組裝而(er)成大(da)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)，具有(you)輸出低轉(zhuan)速(su)(su)(su)(su)、提升(sheng)扭矩載荷能(neng)力的功能(neng)。這種(zhong)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)通常也可稱為齒(chi)輪(lun)(lun)(lun)(lun)馬達(da)或齒(chi)輪(lun)(lun)(lun)(lun)電(dian)(dian)機(ji)(ji)(ji)(ji)。通常由專業的減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)生產廠，進行集成組裝好后，與(yu)電(dian)(dian)機(ji)(ji)(ji)(ji)一體成套供貨。減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)按照用途(tu)、驅動電(dian)(dian)機(ji)(ji)(ji)(ji)類型(xing)、減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)齒(chi)輪(lun)(lun)(lun)(lun)箱(xiang)結構通常分(fen)為行星(xing)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、齒(chi)輪(lun)(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、步進減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、直流減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、蝸輪(lun)(lun)(lun)(lun)蝸桿減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、空心杯減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、直線減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、微型(xing)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)、精密(mi)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)電(dian)(dian)機(ji)(ji)(ji)(ji)等(deng)。