液(ye)(ye)壓起(qi)道(dao)(dao)機(ji)的結構：液(ye)(ye)壓起(qi)道(dao)(dao)器是由手動(dong)雙(shuang)柱(zhu)塞泵，油箱，溢流閥(fa)(fa)，起(qi)道(dao)(dao)杠(gang)桿(gan)，底(di)板等主要(yao)零部件(jian)組成。液(ye)(ye)壓起(qi)道(dao)(dao)機(ji)的特點： 該(gai)機(ji)油箱內(nei)設有溢流閥(fa)(fa)，系統工作(zuo)(zuo)壓力選用(yong)(yong)(yong)(yong)72mpa有利于采用(yong)(yong)(yong)(yong)較小的缸徑(jing)，達(da)到體積小重量輕(qing)的要(yao)求。當油壓超(chao)過72mpa時，溢流閥(fa)(fa)自動(dong)卸荷，起(qi)到超(chao)載保護作(zuo)(zuo)用(yong)(yong)(yong)(yong)。液(ye)(ye)壓起(qi)道(dao)(dao)機(ji)的用(yong)(yong)(yong)(yong)途(tu)：液(ye)(ye)壓起(qi)道(dao)(dao)機(ji)是鐵(tie)路(lu)線路(lu)大、中修及道(dao)(dao)床維護的起(qi)道(dao)(dao)、撥(bo)道(dao)(dao)專用(yong)(yong)(yong)(yong)設備，適用(yong)(yong)(yong)(yong)于43kg/m～75kg/m鋼軌線路(lu)起(qi)道(dao)(dao)、撥(bo)道(dao)(dao)作(zuo)(zuo)業，既(ji)能(neng)抬高(gao)(gao)又能(neng)調整軌道(dao)(dao)水(shui)平作(zuo)(zuo)業。具有工作(zuo)(zuo)效率高(gao)(gao)，操作(zuo)(zuo)簡單(dan)、輕(qing)便，減輕(qing)體力勞動(dong)，安全(quan)可(ke)靠、適用(yong)(yong)(yong)(yong)范圍廣等特點。