Improvement of the System of Diagnostics of Metal Structures and Mechanisms of Foundry Cranes

Pеnchuk Valentin Alekseevich,Sidorov Vladimir Anatolyevich

doi:10.11648/j.ijmsa.20211004.12

Pеnchuk Valentin Alekseevich, Sidorov Vladimir Anatolyevich

Open Access

https://doi.org/10.11648/j.ijmsa.20211004.12

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Abstract

Periodic assessment of the technical condition of mechanisms and metal structures of foundry cranes is insufficient to ensure the reliability of the technogenic system of metallurgical production with long operating resources. Overviewing a crane as a set of rateresource elements with different recovery periods and regular control make it possible to set a range of optional and functional diagnostic parameters with regular inspection and constant control of technical condition of foundry cranes. The foundry crane is considered as an interaction of subsystems for which the operating conditions, characteristic damages and defects are determined. For diagnostics, the application of the following methods is considered: visual, visual-optical, vibration, thermal, non-destructive testing methods in the general structure of measures to maintain and restore the working condition of metallurgical cranes. Control and assessment of the condition of hawser, metal structures, lifting and movement mechanisms, automation systems are considered. The duplication of the strain monitoring system is carried out by the acceleration control system of metal structures – which allows to estimate the loads impact on the metal structure by the value of accelerations, which serves as the basis for the load cycle counter. The use of organoleptic methods, the installation of fixed systems and methods for periodic monitoring using portable instrumentation and multichannel systems, such as complex UMS-16 in conjunction with the SAFE PLANT allows to provide maintenance service information, prevents injuries, developing at different speeds.

Highlights

Foundry cranes used in the metallurgical industry are considered as an integral part of the technological process, ensuring its continuity during certain operations
The technical condition of the complex of mechanisms, elements and metal structures of the foundry crane is determined periodically during technical and expert inspections. This is not enough to ensure the reliability of the technogenic system of metallurgical production with long operating resources
The duplication of the strain monitoring system is carried out by the acceleration control system of metal structures-which allows you to estimate the loads impact on the metal structure by the value of accelerations

Summary

Introduction

Foundry cranes used in the metallurgical industry are considered as an integral part of the technological process, ensuring its continuity during certain operations. The technical condition of the complex of mechanisms, elements and metal structures of the foundry crane is determined periodically during technical and expert inspections. This is not enough to ensure the reliability of the technogenic system of metallurgical production with long operating resources. The occurrence of an additional furnace-ladle unit in the technological cycle of metallurgical production raised productivity in steelmaking, increased the intensity of foundry cranes use. The increase in the height of electric steelmaking and converter machines required an increase in the lifting speed to reduce the overall melting cycle, therefor it led to an increase in the number of failures of the lifting mechanism, which was indirectly expressed by the appearance of drive design options [1]

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