塔吊電氣設備發表時間:2022-08-15 07:59 塔(ta)(ta)(ta)機(ji)的(de)(de)(de)(de)主要(yao)電(dian)氣設備包括:電(dian)纜卷筒(tong)-中(zhong)央集電(dian)環;電(dian)動(dong)機(ji);操作電(dian)動(dong)機(ji)用的(de)(de)(de)(de)電(dian)器(qi)(qi)(qi),如:控(kong)制器(qi)(qi)(qi)、主令控(kong)制器(qi)(qi)(qi)、接觸器(qi)(qi)(qi)和(he)(he)(he)(he)繼電(dian)器(qi)(qi)(qi)。保護電(dian)器(qi)(qi)(qi),如:自(zi)動(dong)熔斷器(qi)(qi)(qi),過電(dian)流繼電(dian)器(qi)(qi)(qi)和(he)(he)(he)(he)限位開(kai)(kai)關等(deng)(deng)。主副回路中(zhong)的(de)(de)(de)(de)控(kong)制、切換(huan)電(dian)器(qi)(qi)(qi),如:按鈕(niu)、開(kai)(kai)關和(he)(he)(he)(he)儀表(biao)等(deng)(deng)。屬于(yu)輔助電(dian)氣設備的(de)(de)(de)(de)有(you):照明燈、信號燈、電(dian)鈴等(deng)(deng)。每臺塔(ta)(ta)(ta)機(ji)都要(yao)用許多(duo)種起(qi)(qi)重(zhong)零部件,其中(zhong)數量較(jiao)大,技術要(yao)求嚴(yan)而規格(ge)繁雜的(de)(de)(de)(de)是(shi)鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)。塔(ta)(ta)(ta)機(ji)用的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)按功能(neng)不(bu)同(tong)有(you):起(qi)(qi)升鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),變(bian)幅鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),臂架拉繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),平(ping)衡(heng)臂拉繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),小車(che)牽(qian)引(yin)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)等(deng)(deng)。鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)特點(dian)是(shi):整(zheng)根的(de)(de)(de)(de)強度高(gao),而且(qie)整(zheng)根斷面(mian)一樣大小,強度一致,自(zi)重(zhong)輕,能(neng)承受(shou)震動(dong)荷(he)載(zai),彈(dan)性大,能(neng)卷繞成(cheng)盤(pan),能(neng)在高(gao)速下(xia)平(ping)衡(heng)運(yun)動(dong),并且(qie)無噪(zao)聲,磨損后其外(wai)皮會(hui)產生許多(duo)毛刺,易于(yu)發現并便于(yu)及(ji)時處置(zhi)。鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)通常由(you)一股(gu)(gu)(gu)股(gu)(gu)(gu)直徑為(wei)(wei)0.3~0.4mm細鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)搓(cuo)成(cheng)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)股(gu)(gu)(gu),再由(you)股(gu)(gu)(gu)捻成(cheng)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)。塔(ta)(ta)(ta)機(ji)用的(de)(de)(de)(de)是(shi)交互捻,特點(dian)是(shi)不(bu)易松(song)散(san)和(he)(he)(he)(he)扭(niu)轉(zhuan)(zhuan)。繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)股(gu)(gu)(gu)截(jie)面(mian)形狀而言,高(gao)層(ceng)建筑施(shi)工用塔(ta)(ta)(ta)機(ji)以(yi)采(cai)用多(duo)股(gu)(gu)(gu)不(bu)扭(niu)轉(zhuan)(zhuan)鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)較(jiao)為(wei)(wei)適宜,此(ci)種鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)由(you)兩層(ceng)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)股(gu)(gu)(gu)組成(cheng)同(tong),兩層(ceng)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)股(gu)(gu)(gu)捻制方向相反(fan),采(cai)用旋轉(zhuan)(zhuan)力(li)矩平(ping)衡(heng)的(de)(de)(de)(de)原理捻制而成(cheng),受(shou)力(li)時自(zi)由(you)端(duan)不(bu)發生扭(niu)轉(zhuan)(zhuan)。塔(ta)(ta)(ta)機(ji)起(qi)(qi)升鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)及(ji)變(bian)幅鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)全(quan)系(xi)數一般取(qu)為(wei)(wei)5~6,小車(che)牽(qian)引(yin)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)和(he)(he)(he)(he)臂架拉繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)全(quan)系(xi)數取(qu)為(wei)(wei)3,塔(ta)(ta)(ta)機(ji)電(dian)梯升降繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)安(an)(an)(an)全(quan)系(xi)數不(bu)得小于(yu)10。鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)安(an)(an)(an)全(quan)系(xi)數是(shi)不(bu)可(ke)(ke)缺少的(de)(de)(de)(de)安(an)(an)(an)全(quan)儲備系(xi)數,絕不(bu)可(ke)(ke)憑借這種安(an)(an)(an)全(quan)儲備面(mian)擅(shan)自(zi)提高(gao)鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)較(jiao)大允許安(an)(an)(an)全(quan)荷(he)載(zai)。由(you)于(yu)鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)重(zhong)要(yao)性,必(bi)須(xu)加強對鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)定期全(quan)面(mian)檢查,貯(zhu)存于(yu)干(gan)燥面(mian)封閉的(de)(de)(de)(de)、有(you)木地板或(huo)瀝(li)青混凝土地面(mian)的(de)(de)(de)(de)倉庫內,以(yi)免腐蝕,裝(zhuang)卸(xie)時不(bu)要(yao)損壞表(biao)面(mian),堆放時要(yao)豎立安(an)(an)(an)置(zhi)。對鋼(gang)(gang)(gang)(gang)(gang)(gang)絲(si)(si)(si)(si)繩(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)進行系(xi)統潤滑可(ke)(ke)以(yi)提高(gao)使用壽命(ming)。 |