1.缺陷:鋼絲擠出 處理:立即報(bào)廢
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2.缺陷:?jiǎn)喂射摻z繩 繩芯擠出 處理:立即報(bào)廢
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3.缺陷:繩股凹陷、繩直 徑局部減少 處理:檢查或降低載荷
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4.缺陷:繩股擠出/扭曲 處理:立即報(bào)廢
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5.缺陷:局部壓扁 處理:立即報(bào)廢
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6.缺陷:紐結(jié)(正向) 處理:立即報(bào)廢
7.缺陷:紐結(jié)(逆向) 處理:立即報(bào)廢
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8.缺陷:繩股擠出/扭曲 處理:檢查、降低載荷、嚴(yán)重報(bào)廢
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9.缺陷:籠狀畸變 處理:立即報(bào)廢
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02卸扣使用方法
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三種方式哪一種是正確的,哪一種是錯(cuò)誤的呢?
我們逐一來說明先說第一種,卸扣橫向受力,我們說這種使用方式是不對(duì)的,卸扣的正確受力如下圖所示:![1600057409872427.png image.png](/uploads/image/20200914/1600057409872427.png)
第一種受力方式,鋼絲繩的力作用于扣體上,這極容易造成卸扣變形,從而使吊物脫落(因試驗(yàn)工具有限,無法展示將卸扣最終拉變形的畫面)。第二種受力方式,在提拉鋼絲繩的過程中,鋼絲繩作用在卸扣銷軸上的摩擦力極容易將銷軸轉(zhuǎn)出,從而使吊物脫落而發(fā)生危險(xiǎn)。第三種受力方式,銷軸在固定端,起吊過程不產(chǎn)生轉(zhuǎn)動(dòng),很好保證卸扣連接的緊固,所以是正確的。
03吊斗鋼絲繩的優(yōu)秀做法
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(鋼絲繩采用編結(jié)固接時(shí),編結(jié)部分的長度不得小于鋼絲直徑的20倍,并不應(yīng)小300mm)一、兜繩捆綁法:將吊裝帶從重物的底部穿過,繩頭掛在吊鉤上的捆綁方法。這種方法主要適用于裝箱設(shè)備或外形比較規(guī)則的設(shè)備。
![1600057482843070.png image.png](/uploads/image/20200914/1600057482843070.png)
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05鋼絲繩常見不合格照片匯總(實(shí)圖版本)
鋼絲繩的規(guī)格型號(hào)應(yīng)符合塔機(jī)使用說明書的要求,潤滑良好,與金屬結(jié)構(gòu)無摩擦。鋼絲繩不得有扭結(jié)、壓扁、彎折、斷股、籠狀畸變斷芯等變形現(xiàn)象,也不得磨損嚴(yán)重。(直徑不得減小7%,斷絲數(shù)不得大于總根數(shù)的10%。)
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