Quick replacement method of steel cables of crane

Abstract

The invention discloses a quick replacement method of steel cables of a crane, which is used for replacing more than one steel cable wound on a movable pulley of gib head of the crane. The method comprises the following steps of: starting a reel of a crane needing to be replaced steel cables to reel off; lowering the gib head of the crane to a position being suitable for a welding operation and keeping the gib head of the crane still; cutting off an old steel cable at the outer most side of steel cables on movable pulley sets on the gib head by using an electric welding and welding the cable head of a new steel cable with the cable head of the cut off part of the old steel cable retained on the movable pulley sets; starting the reel of the crane to reel up so as to wind all the old steel cables welded together with the new steel cable onto the reel, and meanwhile, driving the new steel cable by the old steel cables to sequentially pass through pulley plates of each pulley set; and respectively fixing cable heads at both ends of the new steel cable with an appropriate length on corresponding positions of the reel of the crane. The method utilizes mechanical power to draw the old steel cables to drive the new steel cable so as to pass through the movable pulley plates, saves time and labor and is safe.

Description

technical field [0001] The invention relates to a method for replacing steel wire ropes of a crane. Background technique [0002] Existing bridge cranes replace hooks and wire ropes by removing all the old wire ropes on the pulley block and drum, and then use hemp rope to pass the new wire ropes through the pulleys in groups, and finally pull them to the drum to replace the wire ropes. , because the drum of the bridge crane is higher than the ground and the replacement length and weight of the steel wire rope are relatively large, it is difficult to dismantle the old rope, thread the new steel wire rope and disassemble the rope end. , nor safe. Contents of the invention [0003] The purpose of the present invention is to provide a safe, time-saving and manpower-saving quick replacement method for crane wire ropes. [0004] The technical solution of the first replacement method of the present invention is: a method for quickly replacing steel wire ropes of a crane, which ...

AI Technical Summary

Problems solved by technology

[0002] Existing bridge cranes replace hooks and wire ropes by removing all the old wire ropes on the pulley block and drum, and then use hemp rope to pass the new wire ropes through the pulleys in groups, and finally pull them to the drum to replace the wire ropes. , because the drum of the bridge crane is higher than the ground and the replacement length and weight of the steel wire rope are relatively large, it is difficult to dismantle the old rope, thread the new steel wire rope and disassemble the rope end. , not safe

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