Development Of The Loaded State Of Oil Film Of Wire Stock High-speed Rolling Mill And Simulation Test System

Aiming at the problem that operating temperature of the oil film bearing of level rack drum of advanced precise rolling mill and that of the drum of precise rolling mill 160 inside the high-speed rolling mill is always above the expected level in the case that the bearings works at high speed in load conditions, this article systematically describes the theoretical modeling and computer simulation of the temperature field of oil film bearing's lubricant as well as the deflection of roll mandrel with Fluent and Ansys. Optimization of the structure of oil film bearing is based on the simulation result to reduce the operating temperature. At the same time, to solve the problem that the test system for oil film bearing can merely display temperature and can not perform relevant analytical function, so this article introduces a new design of test and management system of rolling mills running at high speed with VB6.0 and SQL Server 2000 as development tools.The first chapter describes the development of oil film bearing and the contrast of oil film between home and abroad, as well as introduces the main contents of the article.The second chapter concentrates on modeling mandrel and the simulation research of roll mandrel deflection of advanced precise rolling mill and precise rolling mill 160 with software Ansys.The third chapter concentrates on modeling oil film temperature and the simulation research of lubricant temperature field of advanced precise rolling mill and precise rolling mill 160 with software Fluent.The forth chapter concludes the simulation, proving that the improvement of the structure of mandrel can ensure safety of mandrels operating at high speed with full load.The fifth chapter describes the development of the test system for the loaded state of oil film bearing of wire stock high-speed rolling mill, which can perform such functions as on-line supervision, real-time display, history inquiry, alarm inquiry, report setup, print and database management and so on.The sixth chapter concludes the whole article and prospects the future research in this area.