Authors: L.I. Andreeva

Title of the article: Repair fund as an irreducible reserve of components and assemblies for the operational restoration of mining equipment

Year: 2025, Issue: 6, Pages: 66-74

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

Index UDK: 622.5

DOI: 10.26730/1816-4528-2025-6-66-74

Abstract: The main priority directions of the organization of work of repair services of mining enterprises focused on prevention of processes of damage of nodes and aggregates of mining machinery and equipment, and ensuring its operational reliability are substantiated. Effective methods of preventing the technical condition of mining machines without stopping them are presented, which allows to increase the time of its operation. It was emphasized that one of the most important factors of high-quality maintenance of equipment is the timely and technically justified satisfaction of the repair service with materials, components and, most importantly, spare parts. The main contradictions between the desire to minimize stocks in order to save resources and the desire to replenish them are presented, i.e. to have the entire range of units at the enterprise for operational use at all and, especially, during major repairs, which in most cases led to the freezing of funds. The essence of the repair fund is considered as an irreducible reserve of components and assemblies for the restoration of mining machinery and equipment, and the procedure for its formation is given. It is also noted that the repair fund includes an exchange fund (major repairs) and a revolving fund (medium and current repairs). The advantages of the aggregate-node repair method based on the use of structural and layout features of mining machines and allowing for the possibility of assembly and disassembly of the unit independently of other units are presented. Some features are given when exchanging units, namely those removed from the machine and sent for repair and delivered to the operating company instead of those with defects. The functions of the exchange office (warehouse) are given, the main of which are: operational communication with the maintenance service and the repair shop; ensuring the safety of the repair fund; strict accounting of all components and assemblies. The main functions of the staff of the chief mechanic's department of the enterprise are presented, which include: drawing up work plans for maintenance and repair of equipment, reasonable calculation of necessary spare parts, accounting for the operating time of units, their consumption, monitoring of operating conditions and modes and taking measures to investigate the causes of failures of components and assemblies.

Key words: unit node repair fund revolving fund exchange fund diagnostics of components and parts technical condition

Receiving date: 16.06.2025

Approval date: 14.11.2025

Publication date: 18.12.2025

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