What to do after the crane hook rotates?
What to do after the hook rotates When the hook rotates, the wire ropes on the hook are kinked together. At this time, the lifting hook can no longer be operated, otherwise one of the wire ropes may be damaged due to excessive stress. The following methods can be used to deal with it:
(1) When the weight is not high off the ground and the crane performance permits, you can use the luffing method to lower the weight and then straighten the hook.
(2) If the heavy object has been lifted very high from the ground, you can only find a way to get closer to the surrounding buildings, or use other cranes to lift the cage to straighten the hook.
(3) After the hook rotates, the torque in the wire rope must be released. The specific method is: put the hook on the ground, untie the fixed end of the wire rope, multiply the number of turns m of the hook rotation by the matching number n of the wire rope as the base k (it can be increased or decreased depending on the actual situation), press the opposite direction of the twisting direction of the wire rope strands, rotate the end of the wire rope to release the torque, and then install the fixed end. Raise the boom to the maximum elevation angle and repeat lifting and lowering the hook several times to check the effect. You can repeat the above steps until the hook is stable.
What to do after the hook rotates When the hook rotates, the wire ropes on the hook are kinked together. At this time, the lifting hook can no longer be operated, otherwise one of the wire ropes may be damaged due to excessive stress. The following methods can be used to deal with it:
(1) When the weight is not high off the ground and the crane performance permits, you can use the luffing method to lower the weight and then straighten the hook.
(2) If the heavy object has been lifted very high from the ground, you can only find a way to get closer to the surrounding buildings, or use other cranes to lift the cage to straighten the hook.
(3) After the hook rotates, the torque in the wire rope must be released. The specific method is: put the hook on the ground, untie the fixed end of the wire rope, multiply the number of turns m of the hook rotation by the matching number n of the wire rope as the base k (it can be increased or decreased depending on the actual situation), press the opposite direction of the twisting direction of the wire rope strands, rotate the end of the wire rope to release the torque, and then install the fixed end. Raise the boom to the maximum elevation angle and repeat lifting and lowering the hook several times to check the effect. You can repeat the above steps until the hook is stable.
What to do after the hook rotates When the hook rotates, the wire ropes on the hook are kinked together. At this time, the lifting hook can no longer be operated, otherwise one of the wire ropes may be damaged due to excessive stress. The following methods can be used to deal with it:
(1) When the weight is not high off the ground and the crane performance permits, you can use the luffing method to lower the weight and then straighten the hook.
(2) If the heavy object has been lifted very high from the ground, you can only find a way to get closer to the surrounding buildings, or use other cranes to lift the cage to straighten the hook.
(3) After the hook rotates, the torque in the wire rope must be released. The specific method is: put the hook on the ground, untie the fixed end of the wire rope, multiply the number of turns m of the hook rotation by the matching number n of the wire rope as the base k (it can be increased or decreased depending on the actual situation), press the opposite direction of the twisting direction of the wire rope strands, rotate the end of the wire rope to release the torque, and then install the fixed end. Raise the boom to the maximum elevation angle and repeat lifting and lowering the hook several times to check the effect. You can repeat the above steps until the hook is stable.
Inquiry
Please leave us your requirements, we will contact you soon.