隨著高層建築的增多,龍門架也開始應用於高層建築的施工中,由於司機很難看清高處吊盤的停車位置,有時會造成吊盤“冒頂”事故。為了防止這類事故的發生,應裝設起升高度限位器,使龍門架在上極限位置(一般距天輪4m左右)停住。
安(an)裝(zhuang)吊(diao)盤(pan)高(gao)度(du)限(xian)位(wei)器(qi)的(de)方(fang)法(fa)一(yi)般(ban)有(you)兩(liang)種(zhong)。一(yi)種(zhong)是(shi)在(zai)龍(long)門(men)架(jia)的(de)上(shang)極(ji)限(xian)位(wei)置(zhi)安(an)裝(zhuang)重(zhong)錘(chui)式(shi)限(xian)位(wei)開(kai)關(guan),另(ling)一(yi)種(zhong)是(shi)在(zai)卷(juan)揚(yang)機(ji)卷(juan)筒(tong)附(fu)近(jin)安(an)裝(zhuang)過(guo)卷(juan)揚(yang)機(ji)限(xian)製(zhi)器(qi)。這(zhe)種(zhong)過(guo)卷(juan)揚(yang)限(xian)製(zhi)器(qi)是(shi)將(jiang)LX71型(xing)機(ji)械(xie)記(ji)錄(lu)行(xing)程(cheng)開(kai)關(guan)安(an)裝(zhuang)在(zai)渦(wo)輪(lun)減(jian)速(su)裝(zhuang)置(zhi)上(shang),渦(wo)輪(lun)減(jian)速(su)裝(zhuang)置(zhi)與(yu)卷(juan)筒(tong)軸(zhou)連(lian)接(jie)在(zai)一(yi)起(qi)。兩(liang)根(gen)導(dao)線(xian)一(yi)端(duan)接(jie)在(zai)行(xing)程(cheng)開(kai)關(guan)的(de)常(chang)閉(bi)觸(chu)頭(tou)上(shang),另(ling)一(yi)端(duan)接(jie)在(zai)卷(juan)揚(yang)機(ji)控(kong)製(zhi)回(hui)路(lu)上(shang)升(sheng)接(jie)觸(chu)器(qi)的(de)線(xian)圈(quan)上(shang)。
diaopanshangshengshi,xingchengkaiguanchutoubihe,shangshengdaoyudinggaoduchutouduankai,shangshengjiechuqiduandian,tingzhishangsheng,zhexieshangshengjiechuqiyibuqizuoyong,zhiyouanxiajianganniu,xingchengkaiguanchutoucainengzhongxinbihe,congerfangzhileguojuanyang。
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