Authors: A.V. Kudrevatykh, A.S. Ashcheulov, N.V. Kokhmanovich

Title of the article: Actual technical state estimation of the motor-wheel gearboxes of BelAZ dump trucks based on vibration diagnostics parameters

Year: 2020, Issue: 5, Pages: 5-10

Branch of knowledge: 05.02.11 Methods of control and diagnostics in mechanical engineering

Index UDK: 621.91.01

DOI: 10.26730/1999-4125-2020-5-5-10

Abstract: The most important indicator of a mining enterprise is reliability and durability of its equipment. These equipment parameters have the greatest impact not only on mining complex productivity, but also on the cost of extracted minerals as equipment downtime, as well as the cost of repairs and the spare parts purchase are included in the cost of coal. Thus, the main goal in improving coal mining production is to improve the reliability and durability of the equipment. The study carried out at the coal company ‘Kuzbassrazrezugol’ showed that the greatest number of downtime for mining equipment, in particular for mining dump trucks, occurs due to unexpected failure of the wheel motor gearbox. The introduction of the additional technological operation for diagnosing the actual technical condition of gearboxes in the maintenance procedure will allow monitoring the condition of the entire gearbox and its components, in particular, by an in-place repair method. This method consists in continuous or periodic measurement of the vibrations of the operating gearbox mechanisms. Based on the measurements obtained, an analysis of the suitability of the unit and its individual parts is carried out. The usage of this technique at a mining enterprise will significantly reduce the number of downtime, thereby increasing productivity.

Key words: BelAZ gear motor-wheel vibration diagnostics wear

Receiving date: 24.11.2020

Publication date: 23.12.2020

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