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Study of the functioning and wear of the teeth of the intermediate gear of the vertical gearbox rolls of the slabing state - 1150

Gaydamaka Anatoly, Klitnoi Volodymyr, Kulik Gennady, Bobrytskyi Serhii, Borodin Dmytro

Diagnostyka

2025

Vol. 26, No. 1

art. no. 2025110

Gears with large modules are widely used in heavy engineering, for example in rolling mills. The unpredictability of mechanical equipment overloads or operator error lead to premature failure, first of all, of typical parts like gear wheels. This article analyzes the nature of the wear of the working surfaces of the teeth of the most problematic second stage of the intermediate gear of the gearbox of vertical rolls of Slabbing-1150 PJSC "Zaporizhstal" with the aim of identifying the features of the operation of the gear in order to improve the methods of its calculations and construction, choosing a method of monitoring the technical condition and evaluating the residual resource. A simple and reliable method of monitoring the intermediate gear by measuring the hardness in workshop operating conditions was chosen. The method of estimating the residual life of gear wheels with large modules and possible ways of increasing the reliability of the intermediate gear of the vertical roller gearbox are discussed.