Authors: P.B. Gerike, B.L. Gericke

Title of the article: To the question of prediction of accident-free operation of energy-mechanical equipment of mining shovels.

Year: 2024, Issue: 5, Pages: 115-124

Branch of knowledge: 2.8.8 Geotechnology, mining machines

Index UDK: 53.083(430.1)

DOI: 10.26730/1999-4125-2024-5-115-124

Abstract: Relevance of the work. Some results of research in the field of forecasting the technical condition of mining excavator generator groups are presented in the article. The results are obtained using new unified diagnostic criteria and developed computer software. The software is designed for estimating and building a short- and medium-term forecast of the technical condition for mining excavator energy and mechanical equipment. Purpose of the work is to test the new criteria on the equipment of mining excavator generator groups and to sum up the results of their use in solving the problem of comprehensive estimation and forecasting of changes in the technical condition of diagnostic objects made on the basis of the vibration parameters generated during their operation. The purpose is also in proving the effectiveness of applying medium-term forecasting algorithms, which make it possible to visually estimate the risks of main group defects development in diagnosed equipment and prevent emergencies that may arise during mining excavator operation. Methods of investigation: The results of the research are based on an integrated approach to the analysis of vibration parameters of mining equipment. They are also based on the results of spectral analysis of data in the standard and extended frequency and dynamic ranges, on the analysis of rundown characteristics and kurtosis, on spectrum envelope analysis in the field of basic frequencies of diagnosed defects occurrence. A specific combination of diagnostic methods and approaches is substantiated within the framework of the development of unified diagnostic criteria taking into account the design features and operating conditions of the diagnosed objects. Results: The obtained results indicate the possibility of implementing new unified diagnostic criteria in practice when they are used as parameters for a medium-term predictive mathematical model. The results of the estimation and forecasting of the technical condition of technological equipment make it possible to provide additional opportunities for optimizing the system of repairs of mining equipment and planning the supply of the necessary spare parts. It also helps to implement basic elements of mining excavator maintenance grounding on their actual technical condition within the conditions of Kuzbass coal industry.

Key words: vibration analysis mining shovels technical condition forecasting a single diagnostic criterion energy-mechanical equipment

Receiving date: 06.05.2024

Approval date: 29.09.2024

Publication date: 24.10.2024

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