Abstract
The article deals with the models of dump cars, which form the basis of a modern fleet of industrial railway transport. The design features of dump cars used for transportation and automated unloading of coal ore, soil, sand, gravel and other similar goods at domestic industrial enterprises are presented. Models of modern dump cars of domestic production for industrial railway transport, which were created and put into serial production during the last ten years, are given. The main existing requirements to design and manufacture of dump cars are determined. The results of comparative analysis of technical characteristics of dump cars of the last generation up to modern models of dump cars showed that one of the main advantages of the latter is to improve the strength and reliability of individual components and systems. The main focus of design upgrading of modern models of dump cars of domestic production for industrial railway transport is determined. The technical requirements for dump cars of the next generation, which are planned to be created and introduced into serial production in 2022-2026 for operation on the railway tracks of industrial enterprises, are proposed. Technical requirements are based on the results of the design studies of the present-day dump cars for industrial applications, review of technical and design documentation for these cars, and also the analysis of requirements and wishes of customers. The necessity for relevant research and development works of dump cars of the new generation for industrial railway transport is substantiated. The materials of the article will contribute to the construction of new models of dump cars for industrial railway transport and total upgrading of existing models, as well as improving the efficiency of their operation. Key words: dump car, maintenance interval, strength, industrial railway transport, service life.
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