起重整機、橋式起重機、單梁橋式起重機廠家
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1、起重機吊鉤維修
(1)拆卸檢查吊鉤、軸、橫梁、滑輪、軸承並清洗潤滑,吊鉤、橫梁、滑輪軸、不準有裂紋,螺紋部分不應鬆脫,軸承完好,轉動滑輪,螺紋退刀槽處有刀痕或裂紋者應更換;
(2)檢查危險斷麵磨損狀況,危險斷麵磨損超過原高度的10%的應作更換;
(3)吊鉤的試驗,大修後,吊鉤應做試驗檢查,以1.25倍的額定負荷懸吊10分鍾,鉤口彈性張開量不應超過鉤口尺寸的0.25%,卸載後不應有一直變形和裂紋;
(4)板鉤檢修,板鉤鉚接後,板與板的間隙,不應大於0.3mm。
2、起重機鋼絲繩維修
(1)斷絲檢查:1個撚距內斷絲數超過鋼絲總數10%的應按標準報廢;KBK懸掛起重機
(2)徑向磨損量:鋼絲徑向磨損超過原直徑40%的,整根鋼絲繩應報廢;
(3)變形檢查:鋼絲繩直徑縮細量至繩徑70%的扭結,繩芯處露,斷股者應報廢換新鋼絲繩;
(4)鋼絲繩潤滑:潤滑前先用鋼絲刷,煤油等清洗,用鋼絲繩麻脂(Q/SY1152-65)或合成石墨鈣基潤滑指(SYA1405-65)浸塗飽和為宜。

