黄瓜视频二维码

　　軌道(dao)式(shi)(shi)集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)門式(shi)(shi)起重機(ji)(ji)主(zhu)要用(yong)(yong)于集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)鐵路轉(zhuan)運(yun)(yun)(yun)(yun)場(chang)和(he)(he)大型集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)儲運(yun)(yun)(yun)(yun)場(chang)的集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)裝(zhuang)(zhuang)卸、搬運(yun)(yun)(yun)(yun)和(he)(he)堆放　　軌道(dao)式(shi)(shi)集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)門式(shi)(shi)起重機(ji)(ji)主(zhu)要有以(yi)下特點(dian)：　　①起升(sheng)速(su)度(du)(du)(du)(du)(du)較(jiao)低(di)而大車(che)(che)運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)較(jiao)高(gao)(gao)(gao)。根據集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)堆場(chang)的需求(qiu)，軌道(dao)式(shi)(shi)集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)門式(shi)(shi)起重機(ji)(ji)起升(sheng)高(gao)(gao)(gao)度(du)(du)(du)(du)(du)按堆三過四(si)或堆四(si)過五來確定，由(you)于起升(sheng)高(gao)(gao)(gao)度(du)(du)(du)(du)(du)不(bu)高(gao)(gao)(gao)，因此起升(sheng)速(su)度(du)(du)(du)(du)(du)相應地較(jiao)低(di)。但(dan)集(ji)(ji)裝(zhuang)(zhuang)箱(xiang)堆場(chang)一般沿運(yun)(yun)(yun)(yun)行(xing)軌道(dao)方(fang)向長度(du)(du)(du)(du)(du)較(jiao)長，為(wei)(wei)達(da)到一定的生(sheng)產率(lv)，大車(che)(che)運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)較(jiao)高(gao)(gao)(gao)。　　②小(xiao)車(che)(che)運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)可根據橋架跨(kua)度(du)(du)(du)(du)(du)和(he)(he)兩(liang)端(duan)外伸距確定。當跨(kua)度(du)(du)(du)(du)(du)及懸臂長度(du)(du)(du)(du)(du)較(jiao)小(xiao)時(shi)，小(xiao)車(che)(che)運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)和(he)(he)生(sheng)產率(lv)要求(qiu)相對可取較(jiao)小(xiao)值。當跨(kua)度(du)(du)(du)(du)(du)較(jiao)大，懸臂長度(du)(du)(du)(du)(du)也較(jiao)大時(shi)，小(xiao)車(che)(che)運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)可相應提(ti)高(gao)(gao)(gao)以(yi)滿(man)足生(sheng)產率(lv)要求(qiu)。　　③當跨(kua)度(du)(du)(du)(du)(du)超過40m時(shi)，大車(che)(che)高(gao)(gao)(gao)速(su)運(yun)(yun)(yun)(yun)行(xing)過程中，由(you)于兩(liang)側門腿運(yun)(yun)(yun)(yun)行(xing)阻力不(bu)同(tong)將會發生(sheng)偏(pian)移，為(wei)(wei)此設(she)置同(tong)步裝(zhuang)(zhuang)置，通過電(dian)(dian)(dian)氣(qi)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)保持(chi)兩(liang)側運(yun)(yun)(yun)(yun)行(xing)機(ji)(ji)構運(yun)(yun)(yun)(yun)行(xing)速(su)度(du)(du)(du)(du)(du)的同(tong)步。　　④為(wei)(wei)滿(man)足較(jiao)高(gao)(gao)(gao)的使(shi)用(yong)(yong)要求(qiu)，電(dian)(dian)(dian)氣(qi)驅(qu)動控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)采用(yong)(yong)晶(jing)閘管直(zhi)流或交(jiao)流調(diao)速(su)驅(qu)動控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)，以(yi)達(da)到較(jiao)好的調(diao)速(su)和(he)(he)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)性能。電(dian)(dian)(dian)氣(qi)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)也可采用(yong)(yong)常(chang)(chang)規交(jiao)流渦流調(diao)速(su)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)或交(jiao)流定子調(diao)壓(ya)調(diao)速(su)驅(qu)動控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)。對于速(su)度(du)(du)(du)(du)(du)較(jiao)高(gao)(gao)(gao)的大車(che)(che)運(yun)(yun)(yun)(yun)行(xing)機(ji)(ji)構的電(dian)(dian)(dian)氣(qi)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)，通常(chang)(chang)用(yong)(yong)帶(dai)電(dian)(dian)(dian)氣(qi)制(zhi)(zhi)(zhi)動的晶(jing)閘管直(zhi)流、交(jiao)流調(diao)速(su)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)或交(jiao)流定子調(diao)壓(ya)調(diao)速(su)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)(tong)(tong)，避(bi)免采用(yong)(yong)常(chang)(chang)規電(dian)(dian)(dian)氣(qi)驅(qu)動系(xi)統(tong)(tong)(tong)中運(yun)(yun)(yun)(yun)行(xing)停車(che)(che)時(shi)靠制(zhi)(zhi)(zhi)動器制(zhi)(zhi)(zhi)動的方(fang)式(shi)(shi),以(yi)免給整機(ji)(ji)帶(dai)來巨大沖擊。

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