2-19-14

УДК 629.4, 621.891

https://doi.org/10.21440/2307-2091-2019-2-107-114

D. V. Glazunov / News of the Ural State Mining University. 2019. Issue 2(54), pp. 107-114

The relevance of the application of methods for reducing wear of wheelsets of rolling stock at railway transport enterprises is explained by the intense wear of rails and wheelsets of rolling stock on highlands with excessive gradient and on flat gradient railway. The main malfunctions of wheelsets are considered. The main malfunctions of wheelsets tyre are caused by failures as related to products parameters, errors in train operation, procedural violations when making tires and forming wheelsets. The manual and computer-aided method diagnostic methods are used to determine the main malfunctions.
Results. The paper discusses the main modern methods of wear reduction of rolling stock wheels. The illustrations of plasma-based hardening technology are offered using the example of wheelsets of an electric freight locomotive of the 2ES4K Donchak series. The mode of functioning of the wheel-lathe machine for turning wheelsets of the high-speed Sapsan electric train under the conditions of the St. Petersburg-based motive-power depot (MPD-10 Metallostroy) is considered. The Rostov State Transport University has developed a production process for creating tribotechnical materials, which makes it possible to optimize the lubrication process by applying a minimum amount of tribotechnical materials, while reducing the wear of wheel flanges of the rolling stock.
Application of the results. The equipment of the laboratory facilities is widely used in the research process for graduate students at “Friction and wear in machines” faculty and “Ground transport and technological means” faculty as well. The equipment of the production side was successfully tested at the site of the North Caucasus Railway Bataysk – Likhaya – Bataysk for electric freight locomotives of the VL series in 2016. The results of testing of the production side are confirmed by a test certification.
Conclusion. The problem of intensive wear of rails and wheelsets of rolling stock is considered; the main malfunctions of wheelsets are described; manual and computer-aided methods for measuring the wear rate of wheelsets are highlighted. A review has been carried out. As a result, the shortcomings of modern methods for wear reduction of the flanges of wheelsets of modern rolling stock used at the enterprises of Russian Railways have been revealed. The Rostov State Transport University has developed an industrial complex for creating tribotechnical materials, which makes it possible to optimize the process of lubricating the wheels of rolling stock.

Keywords: wear, wheelset, superficial hardening, tribotechnical materials, profile optimization, pattern, flange thickness, rolling stock, pilot plant, video monitoring system, wheel flange lubricator, railway, highland.

 

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