塔吊電氣設備發(fa)表時間:2022-08-15 07:59 塔(ta)(ta)機(ji)的(de)(de)(de)(de)主(zhu)要(yao)電(dian)(dian)氣(qi)設(she)備(bei)包括:電(dian)(dian)纜卷筒-中(zhong)央(yang)集電(dian)(dian)環;電(dian)(dian)動(dong)機(ji);操(cao)作(zuo)電(dian)(dian)動(dong)機(ji)用(yong)的(de)(de)(de)(de)電(dian)(dian)器(qi)(qi)(qi),如(ru):控(kong)制(zhi)器(qi)(qi)(qi)、主(zhu)令控(kong)制(zhi)器(qi)(qi)(qi)、接觸器(qi)(qi)(qi)和(he)繼電(dian)(dian)器(qi)(qi)(qi)。保護電(dian)(dian)器(qi)(qi)(qi),如(ru):自(zi)動(dong)熔斷器(qi)(qi)(qi),過電(dian)(dian)流繼電(dian)(dian)器(qi)(qi)(qi)和(he)限位(wei)開(kai)關(guan)等(deng)。主(zhu)副回(hui)路中(zhong)的(de)(de)(de)(de)控(kong)制(zhi)、切換電(dian)(dian)器(qi)(qi)(qi),如(ru):按(an)鈕、開(kai)關(guan)和(he)儀表(biao)等(deng)。屬(shu)于(yu)輔(fu)助電(dian)(dian)氣(qi)設(she)備(bei)的(de)(de)(de)(de)有(you):照明(ming)燈、信號燈、電(dian)(dian)鈴等(deng)。每臺(tai)塔(ta)(ta)機(ji)都要(yao)用(yong)許多(duo)種起重零部件,其中(zhong)數(shu)(shu)量(liang)較大,技術要(yao)求嚴而(er)(er)規(gui)格繁雜的(de)(de)(de)(de)是(shi)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)。塔(ta)(ta)機(ji)用(yong)的(de)(de)(de)(de)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)按(an)功(gong)能(neng)不(bu)(bu)同有(you):起升鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng),變(bian)幅(fu)(fu)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng),臂(bei)架(jia)拉(la)繩(sheng)(sheng)(sheng),平(ping)(ping)衡(heng)臂(bei)拉(la)繩(sheng)(sheng)(sheng),小(xiao)(xiao)(xiao)(xiao)車牽(qian)引繩(sheng)(sheng)(sheng)等(deng)。鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)特點是(shi):整(zheng)根的(de)(de)(de)(de)強(qiang)度高(gao)(gao),而(er)(er)且整(zheng)根斷面一(yi)樣大小(xiao)(xiao)(xiao)(xiao),強(qiang)度一(yi)致,自(zi)重輕,能(neng)承受震動(dong)荷載,彈性大,能(neng)卷繞(rao)成(cheng)(cheng)盤,能(neng)在高(gao)(gao)速下(xia)平(ping)(ping)衡(heng)運動(dong),并(bing)且無噪(zao)聲,磨損后(hou)其外皮會產生許多(duo)毛刺,易(yi)于(yu)發現并(bing)便于(yu)及(ji)時(shi)處置(zhi)。鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)通常(chang)由(you)一(yi)股(gu)(gu)(gu)股(gu)(gu)(gu)直徑(jing)為(wei)(wei)0.3~0.4mm細(xi)鋼(gang)(gang)絲(si)(si)搓成(cheng)(cheng)繩(sheng)(sheng)(sheng)股(gu)(gu)(gu),再由(you)股(gu)(gu)(gu)捻(nian)成(cheng)(cheng)繩(sheng)(sheng)(sheng)。塔(ta)(ta)機(ji)用(yong)的(de)(de)(de)(de)是(shi)交互捻(nian),特點是(shi)不(bu)(bu)易(yi)松散和(he)扭(niu)轉(zhuan)(zhuan)。繩(sheng)(sheng)(sheng)股(gu)(gu)(gu)截面形狀(zhuang)而(er)(er)言,高(gao)(gao)層建筑施(shi)工用(yong)塔(ta)(ta)機(ji)以采用(yong)多(duo)股(gu)(gu)(gu)不(bu)(bu)扭(niu)轉(zhuan)(zhuan)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)較為(wei)(wei)適宜,此種鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)由(you)兩(liang)層繩(sheng)(sheng)(sheng)股(gu)(gu)(gu)組成(cheng)(cheng)同,兩(liang)層繩(sheng)(sheng)(sheng)股(gu)(gu)(gu)捻(nian)制(zhi)方向相反(fan),采用(yong)旋轉(zhuan)(zhuan)力矩平(ping)(ping)衡(heng)的(de)(de)(de)(de)原理捻(nian)制(zhi)而(er)(er)成(cheng)(cheng),受力時(shi)自(zi)由(you)端不(bu)(bu)發生扭(niu)轉(zhuan)(zhuan)。塔(ta)(ta)機(ji)起升鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)及(ji)變(bian)幅(fu)(fu)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)系(xi)數(shu)(shu)一(yi)般取為(wei)(wei)5~6,小(xiao)(xiao)(xiao)(xiao)車牽(qian)引繩(sheng)(sheng)(sheng)和(he)臂(bei)架(jia)拉(la)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)系(xi)數(shu)(shu)取為(wei)(wei)3,塔(ta)(ta)機(ji)電(dian)(dian)梯升降繩(sheng)(sheng)(sheng)安(an)(an)(an)(an)全(quan)系(xi)數(shu)(shu)不(bu)(bu)得(de)小(xiao)(xiao)(xiao)(xiao)于(yu)10。鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)系(xi)數(shu)(shu)是(shi)不(bu)(bu)可缺少(shao)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)儲(chu)備(bei)系(xi)數(shu)(shu),絕不(bu)(bu)可憑借這種安(an)(an)(an)(an)全(quan)儲(chu)備(bei)面擅自(zi)提(ti)高(gao)(gao)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)較大允許安(an)(an)(an)(an)全(quan)荷載。由(you)于(yu)鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)重要(yao)性,必須加強(qiang)對鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)的(de)(de)(de)(de)定期全(quan)面檢查(cha),貯存于(yu)干(gan)燥(zao)面封閉的(de)(de)(de)(de)、有(you)木地板(ban)或瀝青(qing)混凝(ning)土地面的(de)(de)(de)(de)倉庫(ku)內,以免腐蝕(shi),裝卸時(shi)不(bu)(bu)要(yao)損壞(huai)表(biao)面,堆(dui)放時(shi)要(yao)豎立安(an)(an)(an)(an)置(zhi)。對鋼(gang)(gang)絲(si)(si)繩(sheng)(sheng)(sheng)進(jin)行系(xi)統潤(run)滑可以提(ti)高(gao)(gao)使用(yong)壽(shou)命。 |