減速機和減(jian)(jian)(jian)速(su)(su)(su)箱(xiang)(xiang)有什(shen)么區別？一般情況(kuang)下(xia)，減(jian)(jian)(jian)速(su)(su)(su)機、減(jian)(jian)(jian)速(su)(su)(su)器與減(jian)(jian)(jian)速(su)(su)(su)箱(xiang)(xiang)這三者是(shi)沒有區別的(de)只是(shi)叫法不(bu)同，都(dou)是(shi)指(zhi)(zhi)同一種東西。實際(ji)上不(bu)可以完(wan)全等(deng)同，減(jian)(jian)(jian)速(su)(su)(su)機是(shi)安(an)裝了(le)電(dian)機的(de)減(jian)(jian)(jian)速(su)(su)(su)器，叫減(jian)(jian)(jian)速(su)(su)(su)電(dian)機，也可以叫三合一減(jian)(jian)(jian)速(su)(su)(su)機（包括電(dian)機、減(jian)(jian)(jian)速(su)(su)(su)機、制動器）但一般交談過(guo)程(cheng)中，減(jian)(jian)(jian)速(su)(su)(su)機與減(jian)(jian)(jian)速(su)(su)(su)器默認(ren)是(shi)指(zhi)(zhi)同一種東西。減(jian)(jian)(jian)速(su)(su)(su)箱(xiang)(xiang)可能在某種場(chang)合單(dan)指(zhi)(zhi)沒有搭載驅(qu)動電(dian)機的(de)減(jian)(jian)(jian)速(su)(su)(su)箱(xiang)(xiang)，或者減(jian)(jian)(jian)速(su)(su)(su)器；下(xia)面分(fen)別介紹減(jian)(jian)(jian)速(su)(su)(su)機和減(jian)(jian)(jian)速(su)(su)(su)箱(xiang)(xiang)概念。

減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)是一種由封閉(bi)在剛(gang)性殼體內的(de)(de)齒(chi)(chi)(chi)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)、蝸桿驅(qu)動(dong)(dong)(dong)、齒(chi)(chi)(chi)輪(lun)(lun)(lun)-蝸桿驅(qu)動(dong)(dong)(dong)所組成的(de)(de)獨立部件，常用作原動(dong)(dong)(dong)件與工作機(ji)(ji)(ji)(ji)之(zhi)間的(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)驅(qu)動(dong)(dong)(dong)裝置(zhi) 。減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)一般用于低(di)轉(zhuan)速(su)(su)(su)(su)大(da)扭矩的(de)(de)驅(qu)動(dong)(dong)(dong)設備，把電動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)、內燃機(ji)(ji)(ji)(ji)或其它高速(su)(su)(su)(su)運轉(zhuan)的(de)(de)動(dong)(dong)(dong)力通過減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)的(de)(de)輸(shu)入軸(zhou)上(shang)的(de)(de)齒(chi)(chi)(chi)數少的(de)(de)齒(chi)(chi)(chi)輪(lun)(lun)(lun)嚙合輸(shu)出軸(zhou)上(shang)的(de)(de)大(da)齒(chi)(chi)(chi)輪(lun)(lun)(lun)來(lai)達(da)到(dao)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)的(de)(de)目的(de)(de)，普(pu)通的(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)也(ye)會有幾對相同(tong)(tong)原理齒(chi)(chi)(chi)輪(lun)(lun)(lun)達(da)到(dao)理想的(de)(de)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)效(xiao)果(guo)，大(da)小齒(chi)(chi)(chi)輪(lun)(lun)(lun)的(de)(de)齒(chi)(chi)(chi)數之(zhi)比(bi)，就是驅(qu)動(dong)(dong)(dong)比(bi)。減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)的(de)(de)種類繁多(duo)，按照驅(qu)動(dong)(dong)(dong)類型(xing)可(ke)分為(wei)(wei)齒(chi)(chi)(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)、蝸桿減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)和行(xing)星齒(chi)(chi)(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)；按照驅(qu)動(dong)(dong)(dong)級數不同(tong)(tong)可(ke)分為(wei)(wei)單級和多(duo)級減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)；按照齒(chi)(chi)(chi)輪(lun)(lun)(lun)形狀可(ke)分為(wei)(wei)圓柱(zhu)(zhu)齒(chi)(chi)(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)、圓錐齒(chi)(chi)(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)和圓錐－圓柱(zhu)(zhu)齒(chi)(chi)(chi)輪(lun)(lun)(lun)減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)器(qi)；按照驅(qu)動(dong)(dong)(dong)的(de)(de)布置(zhi)形式又可(ke)分為(wei)(wei)展開(kai)式減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)、分流式減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)和同(tong)(tong)軸(zhou)式減(jian)(jian)(jian)(jian)(jian)(jian)速(su)(su)(su)(su)機(ji)(ji)(ji)(ji)。

減(jian)(jian)(jian)速箱(xiang)(xiang)又被稱之為(wei)(wei)減(jian)(jian)(jian)速機或減(jian)(jian)(jian)速器，是(shi)按(an)照原動(dong)(dong)機連(lian)接減(jian)(jian)(jian)速箱(xiang)(xiang)，減(jian)(jian)(jian)速箱(xiang)(xiang)再連(lian)接工(gong)作機的(de)原理來(lai)進(jin)行(xing)(xing)工(gong)作的(de)，是(shi)一種(zhong)動(dong)(dong)力傳達設備。可(ke)分為(wei)(wei)工(gong)業用減(jian)(jian)(jian)速箱(xiang)(xiang)與汽用減(jian)(jian)(jian)速箱(xiang)(xiang)，前(qian)者可(ke)分類為(wei)(wei)蝸輪(lun)(lun)蝸桿減(jian)(jian)(jian)速箱(xiang)(xiang)、齒輪(lun)(lun)減(jian)(jian)(jian)速箱(xiang)(xiang)、蝸桿減(jian)(jian)(jian)速箱(xiang)(xiang)、蝸輪(lun)(lun)減(jian)(jian)(jian)速箱(xiang)(xiang)以及行(xing)(xing)星(xing)減(jian)(jian)(jian)速箱(xiang)(xiang)等，按(an)驅(qu)動(dong)(dong)級數(shu)主要分為(wei)(wei)單級、二(er)級、多級。