四繩抓鬥由撐杆、ebanjihengliangzucheng。sishengzhuadoudequliaodongzuoyikaoqizhongjishangdeqishengjuantongyukaibijuantongkongzhi,qishengjuantongshangchanraodelianggengangsishengduanbugudingzaizhuadoutoubudexiekeshang,xiekeyuzhuadoutoubujiaojie,qishengjuantongzhuandongshigangsishengtongguoxiekedaidongzhuadoushangshengyuxiajiang;開閉卷筒上纏繞的兩根鋼絲繩通過導輪纏繞在抓鬥頭部與橫梁的滑輪之間,控製抓鬥的開閉。
取料時,抓鬥以張開的狀態下降到料堆上(此時開閉卷筒不動),係那個起升方向開動開閉卷筒(起升繩不動),在(zai)抓(zhua)鬥(dou)自(zi)重(zhong)作(zuo)用(yong)下(xia),抓(zhua)鬥(dou)顎(e)板(ban)挖(wa)入(ru)物(wu)料(liao),抓(zhua)鬥(dou)完(wan)全(quan)閉(bi)合(he)後(hou),同(tong)時(shi)開(kai)動(dong)起(qi)升(sheng)卷(juan)筒(tong)與(yu)開(kai)閉(bi)卷(juan)筒(tong),將(jiang)滿(man)載(zai)抓(zhua)鬥(dou)提(ti)升(sheng)到(dao)一(yi)定(ding)高(gao)度(du),開(kai)動(dong)起(qi)重(zhong)機(ji)把(ba)抓(zhua)鬥(dou)移(yi)動(dong)到(dao)卸(xie)料(liao)位(wei)置(zhi),向(xiang)下(xia)降(jiang)方(fang)向(xiang)開(kai)動(dong)開(kai)閉(bi)卷(juan)筒(tong)(起升卷筒不動),抓鬥開張卸料。
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