Method for adjusting a balance arm wire rope of a metallurgical casting crane

By measuring and calculating the adjustment of the wire rope of the balance boom of a metallurgical casting crane, the problem of uneven force caused by installation errors was solved, and the balanced force and safe use of the wire rope were achieved.

CN117361330BActive Publication Date: 2026-07-21XINJIANG DELOITTE MUTUAL IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XINJIANG DELOITTE MUTUAL IND TECH CO LTD
Filing Date
2023-11-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Due to installation errors, the balance arm of the main hoisting mechanism wire rope winding system of the metallurgical casting crane is not in an balanced state, resulting in inconsistent stress on each wire rope. After long-term use, the wire ropes are overstretched and scrapped, and on-site adjustment is difficult.

Method used

By measuring the height difference between the two balance arms and the pulley system ratio, the length of the wire rope that needs to be adjusted is calculated. The formula S = 2△S a/2 is used for accurate adjustment to ensure that each wire rope is subjected to balanced force.

Benefits of technology

It enables quick and accurate adjustment of wire rope length, improves maintenance efficiency, reduces labor intensity, and ensures the safe use of lifting equipment and the safe lifting of molten steel ladles.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117361330B_ABST
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Abstract

The application discloses a kind of metallurgical casting crane balanced arm steel wire rope adjustment method, and the levelness adjustment of portal hook spreader is completed by following two measurement steps: first, portal hook lifting needs to be in natural drooping state and be separated from ground, while both sides balanced arm end connecting steel wire rope is in natural inclined state after being stressed, and the height difference measurement datum of both sides balanced arm is determined respectively, provides data support for steel wire rope length adjustment calculation by accurately measuring installation error value, and the stress balance of 4 steel wire ropes connected by left and right two balanced arms is realized by adjustment;Second, after the plate hook of portal hook spreader is separated from ground, the measurement of the lowest point of bottom should use the same datum point to measure, so that the height deviation of both sides plate hook can be accurately measured, and the portal hook spreader is kept in horizontal state after adjustment;Portal hook spreader is adjusted to horizontal position in front and back and left and right two directions, so that each steel wire rope is stressed evenly, and the safe use of spreader and the safe hoisting of ladle are ensured.
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