黄瓜视频二维码

　　軌道(dao)式(shi)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)門(men)式(shi)起(qi)重(zhong)(zhong)機(ji)(ji)主要用(yong)(yong)于(yu)(yu)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)鐵(tie)路轉(zhuan)運(yun)(yun)(yun)(yun)場(chang)和(he)大型集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)儲運(yun)(yun)(yun)(yun)場(chang)的(de)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)裝(zhuang)(zhuang)(zhuang)卸、搬運(yun)(yun)(yun)(yun)和(he)堆(dui)(dui)(dui)放　　軌道(dao)式(shi)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)門(men)式(shi)起(qi)重(zhong)(zhong)機(ji)(ji)主要有以下(xia)特點：　　①起(qi)升速度(du)(du)較低而大車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)較高(gao)(gao)。根據(ju)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)堆(dui)(dui)(dui)場(chang)的(de)需求(qiu)，軌道(dao)式(shi)集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)門(men)式(shi)起(qi)重(zhong)(zhong)機(ji)(ji)起(qi)升高(gao)(gao)度(du)(du)按(an)堆(dui)(dui)(dui)三(san)過(guo)四或堆(dui)(dui)(dui)四過(guo)五來確定(ding)，由(you)于(yu)(yu)起(qi)升高(gao)(gao)度(du)(du)不高(gao)(gao)，因此起(qi)升速度(du)(du)相應地較低。但集(ji)(ji)裝(zhuang)(zhuang)(zhuang)箱(xiang)(xiang)(xiang)堆(dui)(dui)(dui)場(chang)一(yi)般沿運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)軌道(dao)方向長(chang)度(du)(du)較長(chang)，為達到(dao)一(yi)定(ding)的(de)生(sheng)產率，大車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)較高(gao)(gao)。　　②小(xiao)車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)可根據(ju)橋(qiao)架跨(kua)度(du)(du)和(he)兩端外(wai)伸距確定(ding)。當(dang)跨(kua)度(du)(du)及懸臂長(chang)度(du)(du)較小(xiao)時，小(xiao)車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)和(he)生(sheng)產率要求(qiu)相對可取較小(xiao)值。當(dang)跨(kua)度(du)(du)較大，懸臂長(chang)度(du)(du)也較大時，小(xiao)車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)可相應提高(gao)(gao)以滿足生(sheng)產率要求(qiu)。　　③當(dang)跨(kua)度(du)(du)超過(guo)40m時，大車(che)(che)(che)(che)高(gao)(gao)速運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)過(guo)程中(zhong)，由(you)于(yu)(yu)兩側門(men)腿運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)阻(zu)力(li)不同(tong)將會發生(sheng)偏移(yi)，為此設(she)置同(tong)步裝(zhuang)(zhuang)(zhuang)置，通過(guo)電(dian)氣(qi)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)保持(chi)兩側運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)機(ji)(ji)構(gou)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)速度(du)(du)的(de)同(tong)步。　　④為滿足較高(gao)(gao)的(de)使用(yong)(yong)要求(qiu)，電(dian)氣(qi)驅(qu)動(dong)(dong)(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)采(cai)(cai)用(yong)(yong)晶(jing)閘管(guan)直流(liu)(liu)或交(jiao)(jiao)流(liu)(liu)調(diao)(diao)(diao)速驅(qu)動(dong)(dong)(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)，以達到(dao)較好的(de)調(diao)(diao)(diao)速和(he)控(kong)制(zhi)(zhi)(zhi)(zhi)性能。電(dian)氣(qi)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)也可采(cai)(cai)用(yong)(yong)常規交(jiao)(jiao)流(liu)(liu)渦流(liu)(liu)調(diao)(diao)(diao)速控(kong)制(zhi)(zhi)(zhi)(zhi)或交(jiao)(jiao)流(liu)(liu)定(ding)子調(diao)(diao)(diao)壓(ya)(ya)調(diao)(diao)(diao)速驅(qu)動(dong)(dong)(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)。對于(yu)(yu)速度(du)(du)較高(gao)(gao)的(de)大車(che)(che)(che)(che)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)機(ji)(ji)構(gou)的(de)電(dian)氣(qi)控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)，通常用(yong)(yong)帶電(dian)氣(qi)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)的(de)晶(jing)閘管(guan)直流(liu)(liu)、交(jiao)(jiao)流(liu)(liu)調(diao)(diao)(diao)速控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)或交(jiao)(jiao)流(liu)(liu)定(ding)子調(diao)(diao)(diao)壓(ya)(ya)調(diao)(diao)(diao)速控(kong)制(zhi)(zhi)(zhi)(zhi)系統(tong)，避免采(cai)(cai)用(yong)(yong)常規電(dian)氣(qi)驅(qu)動(dong)(dong)(dong)系統(tong)中(zhong)運(yun)(yun)(yun)(yun)行(xing)(xing)(xing)(xing)停車(che)(che)(che)(che)時靠制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)的(de)方式(shi),以免給整(zheng)機(ji)(ji)帶來巨大沖擊。

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