The invention discloses a method for quickly replacing an upper pulley block of a bridge crane and preventing a steel wire rope from being separated from a groove and damaged, which comprises the following steps of: selecting a steel plate with the thickness of 20mm according to the width of a shaft clamping groove of the pulley block, cutting out the steel plate with the length of 180mm and the width of 130mm, and taking the steel plate as a new fixed pressing plate of a fixed pulley block; 50 * 50 mm angle iron is selected, and the cut angle iron is 130 mm in length and serves as a foundation base; two corresponding center points are selected from the new fixing pressing plate and the foundation base, and two hole diameters with the diameter of 21 mm are drilled to serve as bolt fixing holes; removing the original fixed pressing plate by using a wrench; selecting a corresponding position above a pulley block hole vehicle body according to the position of an original fixed pressing plate on the inner side of the pulley block, and welding and fixing a foundation base at the edge of the hole; a new fixed pressing plate is inserted into a fixed clamping groove of a fixed pulley block shaft, the upper portion of the new fixed pressing plate corresponds to a fixed bolt hole of the foundation base, bolts with the diameter of 20 mm are selected, and gaskets are additionally arranged for installing and fixing the bolts; when the operation of maintaining and replacing the pulley block is carried out, bolts are dismounted above the vehicle body, and the operation of replacing the pulley block is carried out by dismounting the fixed pressing plate.
本发明公开了一种桥式起重机上滑轮组快速更换及防钢丝绳脱槽受损方法,根据滑轮组轴卡槽宽度,选取厚度20mm的钢板,截取长度180mm,宽度130mm,作为定滑轮组新固定压板;选取50*50mm的角铁,截取长度130mm,作为基础底座;在新固定压板与基础底座选取对应的两个中心点,钻直径21mm的2个孔径,作为螺栓固定孔;将原固定压板利用扳手拆除;根据滑轮组内侧原固定压板位置,选取滑轮组孔洞车体上方对应位置,将基础底座焊接固定在孔洞边沿;将新固定压板插入固定滑轮组轴的固定卡槽内,其上方对应与基础底座的固定螺栓孔,选取直径20mm的螺栓,分别加装垫片将其安装固定;在进行维修、更换滑轮组作业时,在车体上方进行拆除螺栓,将固定压板拆下进行更换滑轮组作业。
Method for quickly replacing pulley block on bridge crane and preventing steel wire rope from being separated from groove and damaged
桥式起重机上滑轮组快速更换及防钢丝绳脱槽受损方法
2022-12-20
Patent
Electronic Resource
Chinese
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