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隨車吊出租設備的起升機構的安全技術

2021-08-24 14:22:19

     隨車吊出租設備的起升機構的安全技術


     (一)隨車吊出租設備的起升機構的制動安全


     常閉式制動器的制動安全系數必須符合規定。對于吊運熾熱金屬、易燃易爆物品或有毒物品的起重機,其隨車吊出租設備的起升機構必須安裝


      兩套制動器.每套制動器的制動安全系數不小于1.25;對于安裝一套制動器的隨車吊出租設備的起升起構,其制動輪及制動器必須安裝在減速器的輸人端.以確保制動安全可靠。


     (二)隨車吊出租設備的起升機構必須安裝上升、下降雙向限位器


     (1)上升限位器的設置應能保證當取物裝置高點距定滑輪低點不小于0.5米處斷電停機。


     (2)下降限位器的設置應能保證取物裝置下降到低位置斷電停機,且此時在雙聯卷筒上每端所余鋼絲繩圈數不小于兩圈(不包括壓繩板處的圈數)。


     (3)應經常檢查限位器工作的可靠性,動作是否靈敏。失效時.應停機檢修,不得帶病工作。


     (三)吊鉤必須安裝防繩扣脫鉤的閉鎖裝里


     (四)額定起重量大于10噸的門式起重機和所有橋式起重機.必須安裝超載限制器

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