行星齒輪變速器是定義

    行(xing)星(xing)齒(chi)輪(lun)變(bian)速(su)器(qi)是(shi)用(yong)行(xing)星(xing)齒(chi)輪(lun)機(ji)構(gou)實(shi)現(xian)變(bian)速(su)的(de)變(bian)速(su)器(qi)。它(ta)通(tong)常(chang)裝(zhuang)在(zai)液(ye)力(li)變(bian)扭(niu)器(qi)的(de)後(hou)麵(mian)，共(gong)同(tong)組(zu)成(cheng)液(ye)力(li)自(zi)動(dong)變(bian)速(su)器(qi)。行(xing)星(xing)齒(chi)輪(lun)機(ji)構(gou)因(yin)類(lei)似(si)於(yu)太(tai)陽(yang)係(xi)而(er)得(de)名(ming)。它(ta)的(de)中(zhong)央(yang)是(shi)太(tai)陽(yang)輪(lun)
，太(tai)陽(yang)輪(lun)的(de)周(zhou)圍(wei)有(you)幾(ji)個(ge)圍(wei)繞(rao)它(ta)旋(xuan)轉(zhuan)的(de)行(xing)星(xing)輪(lun)

，行(xing)星(xing)輪(lun)之(zhi)間(jian)，有(you)一(yi)個(ge)共(gong)用(yong)的(de)行(xing)星(xing)架(jia)。行(xing)星(xing)輪(lun)的(de)外(wai)麵(mian)，有(you)一(yi)個(ge)大(da)齒(chi)圈(quan)。