對稱道(dao)(dao)岔(cha)是(shi)我國煤礦(kuang)(kuang)窄軌鐵路道(dao)(dao)岔(cha)的(de)(de)(de)一種類型,是(shi)窄軌道(dao)(dao)鐵路線(xian)路連接(jie)的(de)(de)(de)基(ji)本設備。對稱道(dao)(dao)岔(cha)標準化、系(xi)列化對煤礦(kuang)(kuang)或其他礦(kuang)(kuang)山的(de)(de)(de)設計、建設和生產也是(shi)非常(chang)重要的(de)(de)(de)。
3、判斷是道(dao)岔(cha)(cha)室(shi)(shi)(shi)(shi)內(nei)(nei)還是室(shi)(shi)(shi)(shi)外的(de)(de)原因(yin)(yin)①如(ru)果(guo)是單(dan)動(dong)(dong)道(dao)岔(cha)(cha),在操(cao)(cao)動(dong)(dong)時(shi)控(kong)制(zhi)臺的(de)(de)電(dian)(dian)流表有指(zhi)示,說(shuo)(shuo)明動(dong)(dong)作(zuo)道(dao)岔(cha)(cha)的(de)(de)電(dian)(dian)已送至(zhi)到道(dao)岔(cha)(cha)。如(ru)果(guo)這(zhe)時(shi)道(dao)岔(cha)(cha)不(bu)能(neng)操(cao)(cao)到規定(ding)位置,是室(shi)(shi)(shi)(shi)外原因(yin)(yin)。在操(cao)(cao)動(dong)(dong)道(dao)岔(cha)(cha)時(shi),如(ru)果(guo)控(kong)制(zhi)臺的(de)(de)電(dian)(dian)流表沒有指(zhi)示,首(shou)先到機械室(shi)(shi)(shi)(shi)的(de)(de)室(shi)(shi)(shi)(shi)外分(fen)線盤測量該道(dao)岔(cha)(cha)有沒有電(dian)(dian)壓(ya),如(ru)果(guo)有電(dian)(dian)壓(ya)說(shuo)(shuo)明動(dong)(dong)作(zuo)道(dao)岔(cha)(cha)的(de)(de)電(dian)(dian)已送出,是室(shi)(shi)(shi)(shi)外故(gu)(gu)障。②如(ru)果(guo)是雙動(dong)(dong)道(dao)岔(cha)(cha),在操(cao)(cao)動(dong)(dong)時(shi)控(kong)制(zhi)臺的(de)(de)電(dian)(dian)流表動(dong)(dong)一下就不(bu)動(dong)(dong)了,說(shuo)(shuo)明動(dong)(dong)作(zuo)道(dao)岔(cha)(cha)的(de)(de)電(dian)(dian)已送到了一動(dong)(dong)道(dao)岔(cha)(cha),故(gu)(gu)障出在一動(dong)(dong)道(dao)岔(cha)(cha)以(yi)后,是室(shi)(shi)(shi)(shi)外故(gu)(gu)障。③如(ru)果(guo)道(dao)岔(cha)(cha)定(ding)、反位都(dou)能(neng)操(cao)(cao)動(dong)(dong),就是沒有表示。用萬用表交(jiao)流250v檔,在分(fen)線盤測量X1(或X2)與X3間有無交(jiao)流110V左右電(dian)(dian)壓(ya),如(ru)果(guo)有電(dian)(dian)壓(ya),則是室(shi)(shi)(shi)(shi)外故(gu)(gu)障,否(fou)則是室(shi)(shi)(shi)(shi)內(nei)(nei)故(gu)(gu)障。
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