吊鉤常見的問題主要是千斤繩脫鉤,也就是當物體捆綁不好,千斤繩間的夾角超過120du,huodiaoyunzhonggoucexiangbeipeng,zhongwudibushougeshiqianjinshenghuiconggouzhongzhuaichu。lingwai,youyudiaogouxiyonghuizhutiehuozhugangjiancailiaozhizao,qicuixingda,bunaipeng,yipolie,yinci,zaidiaowuguochengzhong,ruguochangdizhaixiaohuozhecaozuozhecaozuoshidayi,hualunhuiyinpengzhuangershousun。yidanhualunshousun,qilunyuanpokouhuizaochengduigangsishengdeqiege,shenzhiqieduangangsishengeryinfashigu。ruguocaozuozheweijishigeidiaogouhualunjiayou,hualunkeyinzhuandongbulinghuoerdaozhicaodimosunliangchaobiao,jiuzhi,hualunhuibanliekailai,diaogoujiuhuizaiyunxingzhongfaxingshigu。bujinruci,dangcaodimosunliangzengdashi,huishidegangsishengqianruliangguozhongshen,zengdamocazuli,congerdaozhigangsishengqianruliangjiashen,zengdazuli,congerdaozhigangsilamaoerjiasubaofei。
鋼絲繩常見問題一般以人為因素較多。例如操作者在操作時,鋼絲繩與一些設備及建築物經常磨擦、刮碰,導致鋼絲繩外層局部斷絲、變形;操作卷筒時,鋼絲繩在卷筒上多層卷繞混亂;吊鉤在空中經常打轉,鋼絲繩扭結;鋼絲繩長期缺油使其表麵鏽蝕;鋼絲繩經常受到高溫灼烤以及鋼絲繩碰到電力高壓線而燒損等也是引起事故的致因。
製動器常見的問題有:製動器主彈簧損壞或調節過鬆,製動力矩不足;製動閘瓦過度磨損露出帽釘,導致磨擦力不夠,製動器刹不住重物;製動器杠杆鎖緊螺母鬆動,杠杆竄動,或杠杆係統各關節被卡住等影響抱閘;製動閘瓦開度間隙不正常,有的製動器打開時,一邊閘瓦間隙多達2至3mm,erlingyibianchanjiawahaitiezaizhidonglunshang,shidezhawahezhidonglundemosunjiakuai,zhongzaishizewufashazhuche。lingwai,shachetaijinyeshibulide,yinweidangzhidongqidakaijianxixiaoyuzhengchangzhishi,zhidonglunzhuandongdezulihuizengda,wangwanghuixiudaojiaopiwei,dangmocafashengrepengzhangshi,fanerhuishabuzhucheerfashengshigu。
要保證起重機三大構件的安全使用,防止意外事故的發生,這就要求每一個起重機使用單位及操作者必須做到:
一,要保證吊鉤的防脫鉤裝置完好,吊鉤在使用時應防碰撞;要勤給各潤滑點加油;發現處裂紋、破口或磨損量超過標要及時更換滑輪。要勤檢查鉤身,發現裂紋和鉤口磨損量超過厚度的10以及開口度變化時,應及時整改。值得注意的是,吊鉤缺陷不得補焊處理。
二(er),起(qi)重(zhong)機(ji)作(zuo)業(ye)時(shi),操(cao)作(zuo)人(ren)員(yuan)要(yao)認(ren)真(zhen)檢(jian)查(zha)製(zhi)動(dong)器(qi)的(de)零(ling)部(bu)件(jian)是(shi)否(fou)運(yun)轉(zhuan)正(zheng)常(chang),是(shi)否(fou)卡(ka)塞(sai),閘(zha)瓦(wa)間(jian)隙(xi)是(shi)否(fou)合(he)適(shi),製(zhi)動(dong)倫(lun)表(biao)麵(mian)是(shi)否(fou)良(liang)好(hao),調(tiao)整(zheng)螺(luo)母(mu)是(shi)否(fou)緊(jin)固(gu)。對(dui)於(yu)製(zhi)動(dong)器(qi)的(de)潤(run)滑(hua)每(mei)周(zhou)應(ying)進(jin)行(xing)二(er)次(ci),但(dan)注(zhu)意(yi)不(bu)要(yao)將(jiang)潤(run)滑(hua)油(you)沾(zhan)在(zai)摩(mo)擦(ca)部(bu)件(jian)上(shang)。若(ruo)閘(zha)瓦(wa)、製動輪、小軸、心軸等處磨損量超標;主彈簧、輔助彈簧出現斷裂或塑性變形;製動等處出現裂紋;製動電磁鐵、電力液壓堆杆等出現故障時,因及時修理,不得帶病運行,確保安全。
三,鋼絲繩在使用時,應避免銳角曲折。起重機的起(製)動、加(減)sudujunxuhuanman,fangzhigangsishengshouliguomengerbengduan。qizhongjizaidianlixianpangbianzuoyeshi,yaozhuyiyudianlixianbaozhengyouzugoudeanquanjuli,fangzhigangsishengpengshangdianlixianershaosun。danggangsishengyujianzhuwu、設(she)備(bei)的(de)尖(jian)角(jiao)接(jie)觸(chu)時(shi),應(ying)墊(dian)上(shang)木(mu)塊(kuai)。鋼(gang)絲(si)繩(sheng)應(ying)整(zheng)齊(qi)排(pai)列(lie)在(zai)卷(juan)筒(tong)上(shang),不(bu)得(de)混(hun)亂(luan),避(bi)免(mian)受(shou)壓(ya)損(sun)壞(huai)。在(zai)鋼(gang)絲(si)繩(sheng)邊(bian)不(bu)得(de)燒(shao)焊(han),防(fang)止(zhi)高(gao)溫(wen)電(dian)弧(hu)和(he)焊(han)渣(zha)灼(zhuo)傷(shang)鋼(gang)絲(si)繩(sheng)。在(zai)鋼(gang)絲(si)繩(sheng)過(guo)短(duan)時(shi),不(bu)得(de)采(cai)取(qu)長(chang)的(de)辦(ban)法(fa)從(cong)新(xin)使(shi)用(yong)。要(yao)加(jia)強(qiang)鋼(gang)絲(si)繩(sheng)的(de)保(bao)養(yang),經(jing)常(chang)用(yong)煤(mei)油(you)等(deng)清(qing)洗(xi)劑(ji)洗(xi)去(qu)鋼(gang)絲(si)繩(sheng)上(shang)的(de)汙(wu)垢(gou),並(bing)注(zhu)意(yi)將(jiang)潤(run)滑(hua)油(you)蘸(zhan)浸(jin)入(ru)鋼(gang)絲(si)繩(sheng)。作(zuo)業(ye)時(shi),操(cao)作(zuo)人(ren)員(yuan)要(yao)每(mei)天(tian)檢(jian)查(zha)一(yi)次(ci)鋼(gang)絲(si)繩(sheng),注(zhu)意(yi)檢(jian)查(zha)鋼(gang)絲(si)繩(sheng)是(shi)否(fou)磨(mo)損(sun)、斷絲、腐蝕、直徑變化以及其它物理、化學變化,並注意檢查繩端的固定狀況。
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