什么是電機？

電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)也(ye)成為(wei)(wei)電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)，電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)（Motor）是(shi)把電(dian)(dian)(dian)(dian)能轉(zhuan)換成機(ji)(ji)(ji)(ji)械能的(de)一種設備。它是(shi)利用(yong)通(tong)電(dian)(dian)(dian)(dian)線圈（也(ye)就是(shi)定子繞組）產生旋(xuan)轉(zhuan)磁場并作用(yong)于(yu)轉(zhuan)子（如鼠籠式閉合(he)鋁框）形成磁電(dian)(dian)(dian)(dian)動(dong)力旋(xuan)轉(zhuan)扭(niu)矩(ju)。電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)按使用(yong)電(dian)(dian)(dian)(dian)源(yuan)不同分(fen)為(wei)(wei)直流電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)和(he)交流電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)，電(dian)(dian)(dian)(dian)力系統中的(de)電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)大部分(fen)是(shi)交流電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)，可以是(shi)同步(bu)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)或者是(shi)異步(bu)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)（電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)定子磁場轉(zhuan)速與轉(zhuan)子旋(xuan)轉(zhuan)轉(zhuan)速不保持同步(bu)速）。

什么是減速器？

減速器也稱(cheng)為減速(su)(su)機(ji)(ji)(ji)，是一種由封閉在(zai)剛性殼(ke)體(ti)內的(de)(de)齒輪(lun)傳(chuan)動、蝸桿傳(chuan)動、齒輪(lun)-蝸桿傳(chuan)動所組成的(de)(de)獨立部件，常用作(zuo)原動件與工作(zuo)機(ji)(ji)(ji)之間的(de)(de)減速(su)(su)傳(chuan)動裝(zhuang)置 。在(zai)原動機(ji)(ji)(ji)和工作(zuo)機(ji)(ji)(ji)或執行機(ji)(ji)(ji)構(gou)之間起匹配轉速(su)(su)和傳(chuan)遞(di)轉矩的(de)(de)作(zuo)用，在(zai)現代機(ji)(ji)(ji)械中應用極為廣泛。

減(jian)(jian)(jian)速(su)機(ji)(ji)在電機(ji)(ji)和(he)工作機(ji)(ji)或(huo)執行機(ji)(ji)構之間起匹配轉(zhuan)速(su)和(he)傳(chuan)遞轉(zhuan)矩(ju)的(de)作用(yong)，是(shi)一種相(xiang)對精密的(de)機(ji)(ji)械。使用(yong)它(ta)的(de)目的(de)是(shi)降低轉(zhuan)速(su)，增(zeng)加轉(zhuan)矩(ju)。它(ta)的(de)種類(lei)繁多，型(xing)號各異，不同(tong)(tong)種類(lei)有不同(tong)(tong)的(de)用(yong)途。減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)的(de)種類(lei)繁多，按照傳(chuan)動(dong)(dong)類(lei)型(xing)可(ke)(ke)分(fen)為齒(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)、蝸桿減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)和(he)行星齒(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)；按照傳(chuan)動(dong)(dong)級(ji)數不同(tong)(tong)可(ke)(ke)分(fen)為單級(ji)和(he)多級(ji)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)；按照齒(chi)輪(lun)(lun)(lun)形(xing)狀可(ke)(ke)分(fen)為圓(yuan)(yuan)(yuan)柱(zhu)齒(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)、圓(yuan)(yuan)(yuan)錐齒(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)和(he)圓(yuan)(yuan)(yuan)錐－圓(yuan)(yuan)(yuan)柱(zhu)齒(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)；按照傳(chuan)動(dong)(dong)的(de)布置形(xing)式(shi)又可(ke)(ke)分(fen)為展開式(shi)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)、分(fen)流式(shi)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)和(he)同(tong)(tong)軸式(shi)減(jian)(jian)(jian)速(su)器(qi)(qi)(qi)。

總結：
減(jian)速(su)器(qi)(qi)不(bu)屬于電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)。電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)(shi)指依(yi)據電(dian)(dian)(dian)(dian)磁感應定律提升電(dian)(dian)(dian)(dian)能轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)或傳(chuan)遞的(de)一種電(dian)(dian)(dian)(dian)磁裝置。電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)也俗稱馬達。減(jian)速(su)機(ji)(ji)(ji)是(shi)(shi)一種動(dong)力(li)傳(chuan)達機(ji)(ji)(ji)構，利用齒輪的(de)速(su)度(du)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)器(qi)(qi)，將馬達的(de)回轉(zhuan)(zhuan)(zhuan)(zhuan)數減(jian)速(su)到(dao)所要(yao)的(de)回轉(zhuan)(zhuan)(zhuan)(zhuan)數，并得到(dao)較大轉(zhuan)(zhuan)(zhuan)(zhuan)矩(ju)的(de)機(ji)(ji)(ji)構。簡單說是(shi)(shi)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)和機(ji)(ji)(ji)械設(she)備中間的(de)傳(chuan)動(dong)設(she)備，大型設(she)備都要(yao)用的(de)，主要(yao)把電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)轉(zhuan)(zhuan)(zhuan)(zhuan)化成扭距。