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Modelling, Computing, and Analyzing Large-Size Rotary Joints

  • Tadeusz SmolnickiEmail author
Chapter

Abstract

The chapter presents selected issues regarding modelling, calculating, and researching large-size rotary joints utilized in heavy equipment, vehicles, and engineering objects. It is the fruit of 30 years of cooperation with the industry and research conducted during these years, associated with designing new machines, modernizing machines after long service, diagnosing bearings’ technical state, and forecasting their remaining time of operation. Ways of modelling the support subassembly-slewing bearing-support subassembly system with the use of finite elements are presented. These models were utilized to identify the distribution of load carried by rolling elements and to evaluate the impact of that distribution on the stiffness of the support subassembly. Based on the obtained results, a method of bearing correction greatly reducing the effort of a bearing was developed. It was applied to two heavy equipment machines. Original measuring systems built for that purpose confirmed the correctness of the method. Numerical models used for forecasting plastic wear of a bearing’s raceway and researching this phenomenon in surface mining machines are also described.

Keywords

Rolling bearings Slewing bearings Load distribution Bearing correction Plastic wear 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Faculty of Mechanical EngineeringWroclaw University of Science and TechnologyWroclawPoland

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