黄瓜视频二维码

　　軌(gui)(gui)道式(shi)(shi)(shi)集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)門(men)式(shi)(shi)(shi)起(qi)(qi)(qi)(qi)重機主要用(yong)于(yu)(yu)集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)鐵路轉運(yun)(yun)場和大型集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)儲運(yun)(yun)場的(de)(de)(de)集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)裝(zhuang)(zhuang)(zhuang)卸、搬運(yun)(yun)和堆放(fang)　　軌(gui)(gui)道式(shi)(shi)(shi)集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)門(men)式(shi)(shi)(shi)起(qi)(qi)(qi)(qi)重機主要有以(yi)(yi)下特點：　　①起(qi)(qi)(qi)(qi)升速(su)(su)(su)度(du)(du)(du)(du)(du)較低(di)而大車(che)運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)較高(gao)(gao)。根據集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)堆場的(de)(de)(de)需(xu)求，軌(gui)(gui)道式(shi)(shi)(shi)集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)門(men)式(shi)(shi)(shi)起(qi)(qi)(qi)(qi)重機起(qi)(qi)(qi)(qi)升高(gao)(gao)度(du)(du)(du)(du)(du)按堆三(san)過(guo)四或堆四過(guo)五來(lai)確定(ding)(ding)，由(you)(you)于(yu)(yu)起(qi)(qi)(qi)(qi)升高(gao)(gao)度(du)(du)(du)(du)(du)不高(gao)(gao)，因此(ci)起(qi)(qi)(qi)(qi)升速(su)(su)(su)度(du)(du)(du)(du)(du)相應地較低(di)。但集(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)堆場一般(ban)沿運(yun)(yun)行(xing)(xing)(xing)軌(gui)(gui)道方(fang)(fang)向(xiang)長(chang)度(du)(du)(du)(du)(du)較長(chang)，為達(da)(da)到一定(ding)(ding)的(de)(de)(de)生(sheng)產率(lv)，大車(che)運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)較高(gao)(gao)。　　②小(xiao)車(che)運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)可根據橋架跨度(du)(du)(du)(du)(du)和兩(liang)端(duan)外(wai)伸(shen)距確定(ding)(ding)。當(dang)(dang)跨度(du)(du)(du)(du)(du)及懸(xuan)(xuan)臂長(chang)度(du)(du)(du)(du)(du)較小(xiao)時，小(xiao)車(che)運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)和生(sheng)產率(lv)要求相對(dui)可取較小(xiao)值(zhi)。當(dang)(dang)跨度(du)(du)(du)(du)(du)較大，懸(xuan)(xuan)臂長(chang)度(du)(du)(du)(du)(du)也較大時，小(xiao)車(che)運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)可相應提高(gao)(gao)以(yi)(yi)滿(man)足生(sheng)產率(lv)要求。　　③當(dang)(dang)跨度(du)(du)(du)(du)(du)超(chao)過(guo)40m時，大車(che)高(gao)(gao)速(su)(su)(su)運(yun)(yun)行(xing)(xing)(xing)過(guo)程中，由(you)(you)于(yu)(yu)兩(liang)側門(men)腿(tui)運(yun)(yun)行(xing)(xing)(xing)阻力不同將會發生(sheng)偏移，為此(ci)設置(zhi)同步(bu)裝(zhuang)(zhuang)(zhuang)置(zhi)，通過(guo)電(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統保持兩(liang)側運(yun)(yun)行(xing)(xing)(xing)機構運(yun)(yun)行(xing)(xing)(xing)速(su)(su)(su)度(du)(du)(du)(du)(du)的(de)(de)(de)同步(bu)。　　④為滿(man)足較高(gao)(gao)的(de)(de)(de)使(shi)用(yong)要求，電(dian)(dian)氣(qi)(qi)驅動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統采(cai)用(yong)晶閘管直流(liu)(liu)或交(jiao)(jiao)(jiao)流(liu)(liu)調(diao)速(su)(su)(su)驅動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統，以(yi)(yi)達(da)(da)到較好(hao)的(de)(de)(de)調(diao)速(su)(su)(su)和控(kong)(kong)(kong)(kong)制(zhi)(zhi)性能。電(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統也可采(cai)用(yong)常規交(jiao)(jiao)(jiao)流(liu)(liu)渦流(liu)(liu)調(diao)速(su)(su)(su)控(kong)(kong)(kong)(kong)制(zhi)(zhi)或交(jiao)(jiao)(jiao)流(liu)(liu)定(ding)(ding)子調(diao)壓(ya)調(diao)速(su)(su)(su)驅動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統。對(dui)于(yu)(yu)速(su)(su)(su)度(du)(du)(du)(du)(du)較高(gao)(gao)的(de)(de)(de)大車(che)運(yun)(yun)行(xing)(xing)(xing)機構的(de)(de)(de)電(dian)(dian)氣(qi)(qi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統，通常用(yong)帶電(dian)(dian)氣(qi)(qi)制(zhi)(zhi)動(dong)的(de)(de)(de)晶閘管直流(liu)(liu)、交(jiao)(jiao)(jiao)流(liu)(liu)調(diao)速(su)(su)(su)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統或交(jiao)(jiao)(jiao)流(liu)(liu)定(ding)(ding)子調(diao)壓(ya)調(diao)速(su)(su)(su)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)統，避(bi)免采(cai)用(yong)常規電(dian)(dian)氣(qi)(qi)驅動(dong)系(xi)(xi)統中運(yun)(yun)行(xing)(xing)(xing)停車(che)時靠(kao)制(zhi)(zhi)動(dong)器制(zhi)(zhi)動(dong)的(de)(de)(de)方(fang)(fang)式(shi)(shi)(shi),以(yi)(yi)免給(gei)整(zheng)機帶來(lai)巨大沖擊。

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