行星減速機之傳動(dong)(dong)結構為(wei)目前齒(chi)(chi)輪(lun)(lun)減速(su)(su)機效率之組合(he)，其基本傳動(dong)(dong)結構為(wei)四個部分：太陽齒(chi)(chi)輪(lun)(lun)、行星(xing)齒(chi)(chi)輪(lun)(lun)（組合(he)于(yu)行星(xing)架(jia)）、內齒(chi)(chi)輪(lun)(lun)環(huan)、馬達以直接(jie)連接(jie)的方式(shi)啟動(dong)(dong)太陽齒(chi)(chi)輪(lun)(lun)，太陽齒(chi)(chi)輪(lun)(lun)將組合(he)于(yu)行星(xing)齒(chi)(chi)輪(lun)(lun)架(jia)上的行星(xing)齒(chi)(chi)輪(lun)(lun)帶動(dong)(dong)運轉(zhuan)。整組行星(xing)齒(chi)(chi)輪(lun)(lun)系(xi)統沿著(zhu)外齒(chi)(chi)輪(lun)(lun)環(huan)自動(dong)(dong)運行轉(zhuan)動(dong)(dong)，行星(xing)架(jia)連接(jie)出力(li)軸輸出達到(dao)加速(su)(su)目的。更減速(su)(su)比則需要由多組階段齒(chi)(chi)輪(lun)(lun)與行星(xing)齒(chi)(chi)輪(lun)(lun)倍增累計而成。

行(xing)(xing)星(xing)(xing)(xing)減(jian)(jian)速(su)(su)機的(de)級(ji)數說明：行(xing)(xing)星(xing)(xing)(xing)齒(chi)輪(lun)(lun)(lun)的(de)套數。行(xing)(xing)星(xing)(xing)(xing)減(jian)(jian)速(su)(su)機的(de)特性(xing)(xing)：體積小(xiao)、重量輕(qing)，承載能(neng)力(li)，使(shi)用壽命長(chang)、運轉(zhuan)平(ping)穩，噪聲低(di)、輸(shu)出扭(niu)矩大，速(su)(su)比大、效率(lv)(lv)高、性(xing)(xing)能(neng)安全的(de)特點。兼具功率(lv)(lv)分流、多(duo)齒(chi)嚙合用的(de)特性(xing)(xing)；下(xia)圖是行(xing)(xing)星(xing)(xing)(xing)減(jian)(jian)速(su)(su)機齒(chi)輪(lun)(lun)(lun)結構(gou)組成，A-外齒(chi)圈，B-太陽輪(lun)(lun)(lun)，C-行(xing)(xing)星(xing)(xing)(xing)輪(lun)(lun)(lun)。

常用行星齒輪減速機