Authors: L.I. Andreeva, S.V. Abramov

Title of the article: Choosing the optimal method for restoring excavator parts based on economic feasibility

Year: 2022, Issue: 6, Pages: 33-39

Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)

Index UDK: 622.002

DOI: 10.26730/1816-4528-2022-6-33-39

Abstract: The review of the most effective and applied methods of restoration and hardening of details of excavators of cyclic action at the mining enterprises of Russia taking into account the nature of loading, operating conditions, type of wear of details, their dimensions and weight is presented. An important role in choosing the recovery method is played by the strategy of repair maintenance of mining equipment adopted at the mining enterprise. Based on studies of the design and functional features of excavators, analysis of downtime and failures of parts and assemblies and recommendations are given to increase the durability of mining machines during their operation, both industrial and technical. The groups of excavator parts and assemblies that are most often subject to wear and repair impacts have been identified. The most promising methods and materials for improving the surface characteristics of excavator parts, allowing to increase the wear resistance of excavator components and their service life, are presented. As the main criterion for choosing the recovery method, the relative cost of restoring the surface of the parts of cyclic excavators is proposed, which will allow for a more reasonable and efficient planning of the budget of repair services, drawing up a schedule for performing repair maintenance of equipment and determining the feasibility of using one or another method of restoring and hardening parts.

Key words: recovery method surface wear failure downtime efficiency relative cost

Receiving date: 15.09.2022

Approval date: 01.10.2022

Publication date: 27.12.2022

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