Authors: M.V. Dadonov, A.G. Kulpin, D.V. Stenin

Title of the article: Influence of maximum permissible flows and long-permissible current loads on scheme-mode operations of the electric power network

Year: 2022, Issue: 5, Pages: 29-35

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 621.311

DOI: 10.26730/1816-4528-2022-5-29-35

Abstract: Rock mass transportation costs account for more than 50% of the total costs including the tire costs of 25 to 30%. The average tire life at mining companies is less than what is recommended by the manufacturing plants. Mining truck tire service life is largely dependent on the normal wheel load. The key point in the normal load configuration is the wheel location on the dump truck and the profile of the quarry road. Determination of the most loaded tires in various operating conditions will lead to an increase in the tire service life and prevent early failure. The ton km per hour indi-cator (tire operating performance) proposed by tire manufacturers does not consider the various mining conditions and profiles options for the of open pit roads on different routes. The average load per trip is determined as the movement of a loaded and empty dump truck along a straight road section. The proposed method of considering the load redistribution on the wheel makes it possible to adjust the ton km per hour indicator. This will allow us to manage the tires life thus increasing their reliability and reducing the cost of rock mass transportation.

Key words: Dump truck oversized tires road profile normal reactions tire life mass distribution

Receiving date: 29.07.2022

Approval date: 01.10.2022

Publication date: 14.10.2022

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