直(zhi)齒(chi)輪(lun)(lun)傳(chuan)(chuan)動(dong)依靠主動(dong)齒(chi)輪(lun)(lun)和(he)從動(dong)齒(chi)輪(lun)(lun)的嚙合來(lai)傳(chuan)(chuan)遞運動(dong)和(he)動(dong)力(li)。這是一個在兩個平(ping)行(xing)軸之(zhi)間(jian)驅動(dong)的齒(chi)輪(lun)(lun)。直(zhi)圓柱齒(chi)輪(lun)(lun)易于(yu)加工，能生產(chan)高精度齒(chi)輪(lun)(lun)，在傳(chuan)(chuan)動(dong)中(zhong)不產(chan)生推力(li)(軸向力(li))，是實際(ji)生產(chan)和(he)使用中(zhong)最常見的齒(chi)輪(lun)(lun)之(zhi)一。

齒輪傳(chuan)動(dong)(dong)具有運行(xing)可(ke)靠、傳(chuan)動(dong)(dong)比恒定、效率高、能在空(kong)間(jian)(jian)任意兩軸間(jian)(jian)傳(chuan)遞運動(dong)(dong)、適應性廣的優點。