輥道機：

1868年(nian)，在(zai)英國出現了(le)帶式輸(shu)(shu)送(song)機(ji)；1887年(nian)，在(zai)美國出現了(le)螺旋(xuan)輸(shu)(shu)送(song)機(ji)；1905年(nian)，在(zai)瑞士出現了(le)鋼(gang)帶式輸(shu)(shu)送(song)機(ji)；1906年(nian)，在(zai)英國和(he)德國出現了(le)慣性(xing)輸(shu)(shu)送(song)機(ji)。此后，輸(shu)(shu)送(song)機(ji)受到機(ji)械制造、電機(ji)、化(hua)(hua)工和(he)冶金工業(ye)技術進步的影響(xiang)，不(bu)斷完善，逐步由完成(cheng)(cheng)車間內(nei)部(bu)(bu)的輸(shu)(shu)送(song)，發(fa)展到完成(cheng)(cheng)在(zai)企業(ye)內(nei)部(bu)(bu)、企業(ye)之間甚至城市之間的物料(liao)搬運，成(cheng)(cheng)為物料(liao)搬運系統機(ji)械化(hua)(hua)和(he)自動(dong)化(hua)(hua)不(bu)可(ke)缺少的組(zu)成(cheng)(cheng)部(bu)(bu)分。

動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)道(dao)(dao)由動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)桶組(zu)(zu)件(jian)、鋁旁板、片(pian)架、拉桿、承座(zuo)、驅動(dong)(dong)(dong)(dong)(dong)裝置和鏈(lian)(lian)(lian)條組(zu)(zu)成。無(wu)動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)道(dao)(dao)由無(wu)動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)桶組(zu)(zu)件(jian)、鋁旁板、片(pian)架、拉桿、承座(zuo)組(zu)(zu)成。動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)道(dao)(dao)由驅動(dong)(dong)(dong)(dong)(dong)裝置帶動(dong)(dong)(dong)(dong)(dong)牽引鏈(lian)(lian)(lian)條，鏈(lian)(lian)(lian)條帶動(dong)(dong)(dong)(dong)(dong)各動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)桶上的鏈(lian)(lian)(lian)輪轉動(dong)(dong)(dong)(dong)(dong)，從而由轉動(dong)(dong)(dong)(dong)(dong)的輸送工作。無(wu)動(dong)(dong)(dong)(dong)(dong)力(li)輥(gun)道(dao)(dao)由人推拉工件(jian)或工件(jian)擠壓工件(jian)，在(zai)可自(zi)由的輥(gun)筒上移動(dong)(dong)(dong)(dong)(dong)。