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Why the construction hook rotates?

Dec 28, 2018

construction hook rotation is related to the following factors:


(1) The larger the crane, the higher the lifting height, that is, the longer the rope between the boom top pulley block and the hook, the greater the possibility of the construction hook rotating;


(2) The construction hook wire rope is wound into a single number matching, which is easier to make the hook rotate than the double number matching, and the number of matching wire ropes is less, and the possibility of the hook rotating is greater;


(3) The greater the weight of a single wire rope, the greater the possibility of the construction hook rotating;


(4) The smaller the outer dimensions of the construction hook assembly and the size of the pulley, the greater the possibility of the construction hook rotating;


(5) The speed of operating the crane's landing construction hook is not stable, especially when the weight is off the ground, the possibility of the hook rotating is increased.