Document Type : Saint Petersburg Mining University (SPMU) 2024
Authors
1
Department of Transport and techological processes, Faculty of Mechanical Engeneering, Empress Catherine II St. Petersburg Mining University, St. Petersburg, Russia
2
Faculty of Mechanical Engineering, Empress Catherine II Saint Petersburg Mining University, St. Petersburg, Russia
3
Faculty of Automobile and Road Building, Saint Petersburg State University of Architecture and Civil Engineering, St. Petersburg, Russia
Abstract
Over the past years, there has been a consistent trend in the global market to increase demand for iron ore. As a result, many mining companies have had to find new ways to intensify production processes, which has led to increased requirements for service providers. In view of the exceptional significance of the role played by dump trucks within the entire mineral extraction process, the component with the highest rate of failure, namely their suspension system, has been chosen as the subject of this research. In order to improve the reliability of these machines, a method has been proposed to assess the impact of various factors in the technological routes for moving rock masses, which are inherent in complex mining conditions, on the reduction in planned values for operating time until failure of suspensions using remote monitoring systems installed on these machines. Based on date for two–year period, mathematical dependences have been established between groups of route factors and the proposed indicator of reliability. Based on data for a two–year period from the quarries of Kachkanar mine deposit, mathematical dependencies were established between groups of route factors and the proposed reliability indicator.The obtained dependencies were used to validate the methodology for calculating the specified value of the maintenance interval for suspensions. During testing of this methodology, it became possible to reduce the amount of non-technological downtime incase of failure of suspension elements of dump trucks, which allowed to increase the maintainability of such machines
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