Advisability of evaluating technical state of machinery in mines in Russia is currently conditioned by the increase in number of morally obsolete and overage equipment. Making a decision on investment of capital in maintenance of such equipment requires thorough feasibility evaluation. Methods of machinery diagnostics in mining allow collecting and processing of data on condition of units and assemblies of any equipment. Using such information, it is possible to optimize periods between repairs, or to predict remaining life of units and parts, to promptly determine maintenance require ments of mining machines and equipment, to check the repair quality and to control mining machinery availability. The most preferred method of mining machinery availability control is vibrodiagnostics. Using this methods, parameters of mechanical vibration at «hazardous», i.e. most informative, point of a unit or a part are recorded and then compared, which allows detecting the change in condition of equipment in case one of the vibration parameters is increased since different defects are connected with certain combinations of harmonics in the spectrum of vibrations of a unit, assembly or a part of a mining machine. The nondestructive control, in particular, vibrodiagnostics of actual state of mining machines will enable extending the life of equipment owing to elimination of disassembling/assembling operations and the related break-in periods.


Expert analysis, availability monitoring, technical diagnostics, technological lifespan, nondestructive control methods, defect, vibrodiagnostics, vibration loading, harmonics.

Issue number: 5
Year: 2018
UDK: 622.271
DOI: 10.25018/0236-1493-2018-5-0-136-143
Authors: Andreeva L. I.

About authors: Andreeva L.I., Doctor of Technical Sciences, Chief Researcher, e-mail:, Chelyabinsk Branch of Institute of Mining of Ural Branch, Russian Academy of Sciences, 454048, Chelyabinsk, Russia.


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