Increasing the reliability of the traction electric motor of a mining dump truck for the coal industry

The development of the Russian coal industry in the perspective up to 2030 includes improvement of equipment reliability and performance of the mining infrastructure. The element of a transportation infrastructure of the mining industry are open-pit and mine dump trucks, which allow to transport large volumes of minerals and serve as a means of transportation in the technological process of open-pit mining of mineral resources. If one of the dump truck systems fails and causes an unplanned shutdown, it results in significant financial losses. These losses arise from the requirement to perform repairs on the system and the consequent decrease in productivity during the mining process, leading to a loss of profits. In the article a mathematical model of reliability of brush-collector unit of traction electric motors of quarry dump trucks was developed. By utilizing the suggested model, it becomes possible to precisely determine the remaining lifespan of brushes based on the maximum wear height threshold. The application of this particular model significantly enhances the precision in forecasting and identifying failures in the direct current of electric motors. Depending on the height of the brush in operation, a study and calculation of the reliability of the brush-collector assembly based on the presented model, in which the main dimensions of the brush and its serviceability are determined.

Keywords: Mining dump truck, traction motor, commutation stability, brush wear, operating modes, Indicators of reliability, failure, methods of forecasting, operation, wear rate.
For citation:

Shchurov N. I., Filina O. A., Malozyomov B. V. Increasing the reliability of the traction electric motor of a mining dump truck for the coal industry. MIAB. Mining Inf. Anal. Bull. 2023;(10-1):245—260. [In Russ]. DOI: 10.25018/0236_1493_2023_101_0_245.

Issue number: 10
Year: 2023
Page number: 245-260
ISBN: 0236-1493
UDK: 621.313.3
DOI: 10.25018/0236_1493_2023_101_0_245
Article receipt date: 18.04.2023
Date of review receipt: 02.06.2023
Date of the editorial board′s decision on the article′s publishing: 10.10.2023
About authors:

Shchurov N. I., Dr. Sci. (Eng.), Professor, Head of the Department of Electrotechnical Complexes. The number of published scientific papers is 305. The area of scientific research is improving the energy efficiency of electrical complexes and systems. Federal State Budgetary Educational Institution of Higher Education Novosibirsk State Technical University, 630073, Novosibirsk, K. Marx Ave., 20. Contact information: shhurov@corp.;
Filina O. A., senior prep. Department of Electrical Complexes and Systems. The number of published scientific works is 203. Field of research — Diagnostics and reliability, electric motors rolling stock. Federal State Budgetary Educational Institution of Higher Education Novosibirsk State Technical University, 630073, Novosibirsk, K. Marx Ave., 20. Contact details:;
Malozyomov B. V., Cand. Sci. (Eng.), Associate Professor of the Department of Electrical Engineering Complexes. The number of published scientific works is 154. Field of research — Diagnostics and reliability, Computer, network and information technologies. Novosibirsk State Technical University, 630073, Novosibirsk, K. Marx Ave., 20. Contact details:


For contacts:

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