減速齒輪箱電機用于(yu)傳遞動(dong)力與運(yun)動(dong)的(de)(de)機構中(zhong)，減速齒(chi)輪(lun)箱(xiang)的(de)(de)應(ying)用范圍是相當的(de)(de)，幾(ji)乎在各式(shi)機械的(de)(de)驅動(dong)系統中(zhong)都可以見的(de)(de)到(dao)它的(de)(de)蹤(zong)跡(ji)，減速齒(chi)輪(lun)箱(xiang)電機是一種動(dong)力傳達機構，是利用齒(chi)輪(lun)的(de)(de)速度(du)轉(zhuan)換器(qi)，將電機的(de)(de)回(hui)轉(zhuan)數減速到(dao)所要的(de)(de)回(hui)轉(zhuan)數，并得到(dao)較(jiao)大轉(zhuan)矩的(de)(de)機構。

減(jian)(jian)速(su)(su)(su)齒輪(lun)箱(xiang)電(dian)機(ji)的作用主要有在降速(su)(su)(su)的同時提輸(shu)(shu)出扭(niu)(niu)矩(ju)，扭(niu)(niu)矩(ju)輸(shu)(shu)出比例按(an)電(dian)機(ji)輸(shu)(shu)出乘減(jian)(jian)速(su)(su)(su)比，但要注意輸(shu)(shu)出的扭(niu)(niu)矩(ju)不能超出減(jian)(jian)速(su)(su)(su)齒輪(lun)箱(xiang)電(dian)機(ji)額定的扭(niu)(niu)矩(ju)，另外(wai)減(jian)(jian)速(su)(su)(su)電(dian)機(ji)在減(jian)(jian)速(su)(su)(su)同時降低了負載的慣量，慣量的減(jian)(jian)少為(wei)減(jian)(jian)速(su)(su)(su)比的平(ping)方。

減(jian)(jian)(jian)(jian)速齒(chi)(chi)輪(lun)(lun)箱(xiang)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是一種(zhong)相對(dui)精密的(de)(de)(de)機(ji)(ji)(ji)械(xie)，使用(yong)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)目(mu)的(de)(de)(de)是降低轉(zhuan)速、增加(jia)轉(zhuan)矩(ju)。減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)種(zhong)類(lei)繁(fan)多，型號(hao)各異，不(bu)同(tong)(tong)種(zhong)類(lei)的(de)(de)(de)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)有著不(bu)同(tong)(tong)的(de)(de)(de)用(yong)途(tu)。減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)按(an)(an)照(zhao)其驅(qu)動類(lei)型可分為齒(chi)(chi)輪(lun)(lun)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，蝸(gua)桿減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)和(he)(he)行星齒(chi)(chi)輪(lun)(lun)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)；按(an)(an)照(zhao)驅(qu)動級數不(bu)同(tong)(tong)可分為單(dan)級和(he)(he)多級減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，按(an)(an)照(zhao)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)齒(chi)(chi)輪(lun)(lun)形狀來分可分為圓(yuan)柱齒(chi)(chi)輪(lun)(lun)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)、圓(yuan)錐齒(chi)(chi)輪(lun)(lun)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)和(he)(he)圓(yuan)錐—圓(yuan)柱齒(chi)(chi)輪(lun)(lun)減(jian)(jian)(jian)(jian)速電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)；按(an)(an)照(zhao)驅(qu)動的(de)(de)(de)布置形式又(you)可分為展開式、分流式和(he)(he)同(tong)(tong)軸式等(deng)。

減速齒輪箱電機一般用于(yu)低(di)(di)轉速(su)(su)大(da)扭矩的(de)(de)驅動(dong)(dong)設備，把電(dian)動(dong)(dong)機(ji)(ji)(ji)、內(nei)燃機(ji)(ji)(ji)或其他速(su)(su)運(yun)轉的(de)(de)動(dong)(dong)力通(tong)過(guo)減速(su)(su)電(dian)機(ji)(ji)(ji)的(de)(de)輸入軸上(shang)齒(chi)數少的(de)(de)齒(chi)輪嚙合(he)輸出(chu)軸上(shang)的(de)(de)大(da)齒(chi)輪來達到減速(su)(su)的(de)(de)目的(de)(de)，普通(tong)的(de)(de)減速(su)(su)電(dian)機(ji)(ji)(ji)也會有幾對(dui)相同(tong)原理齒(chi)輪達到理想的(de)(de)減速(su)(su)效果，大(da)小齒(chi)輪的(de)(de)齒(chi)數之比(bi)(bi)就是減速(su)(su)比(bi)(bi)。同(tong)時減速(su)(su)電(dian)機(ji)(ji)(ji)是通(tong)過(guo)機(ji)(ji)(ji)械驅動(dong)(dong)裝置來降低(di)(di)電(dian)機(ji)(ji)(ji)（馬達）轉速(su)(su)，而變頻(pin)器(qi)是通(tong)過(guo)改變交流(liu)電(dian)頻(pin)率(lv)以達到電(dian)機(ji)(ji)(ji)（馬達）速(su)(su)度調節的(de)(de)目的(de)(de)。通(tong)過(guo)變頻(pin)器(qi)降低(di)(di)電(dian)機(ji)(ji)(ji)轉速(su)(su)時，可以達到節能的(de)(de)目的(de)(de)。