Anti-interference fault-tolerant design, installation and monitoring method for spring seat of coiling machine and coiling machine

By introducing a safety margin Δ into the pyramidal coiler of the cold rolling mill, along with fault-tolerant design, precision assembly verification, and preventative monitoring, the fatigue fracture problem caused by motion interference of the spring seat was solved, enabling predictive maintenance and economic benefits for the equipment.

CN122441783APending Publication Date: 2026-07-24武汉钢铁有限公司
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Patent Information

Application Number
CN202610695227.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies lack a systematic solution to prevent fatigue fracture of spring seats in the pyramidal coiler of cold rolling mills due to motion interference from the design source. In particular, after equipment modification, insufficient design clearance can lead to early fatigue fracture of the spring seats.

Method used

By introducing a safety margin Δ in the fault-tolerant design, combined with precision assembly verification and preventive monitoring, it is ensured that the spring seat and jaw motion system do not interfere with each other under abnormal operating conditions. This includes increasing the safety margin in the design phase, measuring the double limit positions in the assembly phase, and periodic monitoring during operation.

Benefits of technology

It enables the elimination of faults at the design stage, ensures assembly quality, achieves predictive maintenance, and avoids unplanned downtime and major losses caused by sudden breakage of spring seats. It has universality and significant economic benefits.

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Abstract

The invention discloses an anti-interference fault-tolerant design, installation and monitoring method for a spring seat of a coiling machine and the coiling machine, and relates to the technical field of metallurgical equipment. The method comprises three stages: in a fault-tolerant design stage, a safety margin delta is actively introduced into a key matching size of a spring seat and a jaw movement system so as to tolerate an abnormal working condition from a source; in the precision assembly verification stage, a double-limit position measurement method is adopted to verify the assembly clearance on site at the two end points of diameter expansion and diameter shrinkage, and it is ensured that no interference exists; in the preventive monitoring stage, the gap is periodically remeasured and compared with a preset threshold value, and predictive maintenance is achieved. By means of the whole-process systematic method, the technical problem that due to the fact that the design gap error-tolerant rate is low, motion interference is prone to occurring under the abnormal working condition, and fatigue fracture of the spring seat is caused is fundamentally solved, and the operation reliability and the maintenance economical efficiency of the coiling machine are remarkably improved.
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