Adaptation of wear type classifications in relation to the mechanical part of the traction drive of locomotives

Abstract

When studying wear, it is necessary to know the classification of its types and subtypes, but this is complicated by the fact that there are no uniform signs by which wear is classified. The components of the mechanical part of the traction rolling stock are particularly susceptible to wear. The authors propose a new specialized classification of wear types which act specifically on the mechanical part of the traction drive of locomotives. Various classifications of wear types are presented. Based on the existing classifications, the authors have developed a specialized adaptive scheme of wear types affecting the mechanical part of the traction drive of locomotives. In this classification, the molecular-mechanical type and other subtypes of wear are clarified and revised. The classification of wear types is based on physical, mechanical and chemical phenomena in the contact zone. The article substantiates the lack of existing subtypes of wear in the developed classification due to the minimum possible probability of manifestation on the elements of the mechanical part of the traction drive of locomotives. Examples of negative impact are given. A model of subtypes of mechanical wear is proposed, describing its intensity as a regularity of the change rate in wear during the operation of the part. It is indicated that mechanical wear is the predominant type. The main quantitative characteristics of the wear process are described.