The Improvement Design Of The Main Transmission System About Laiwu Steel 550 Rolling Mill

In recent years,Special steel product market environment has changed dramatically.Combined with the "12th Five-Year" planning, Laiwu Steel Group Company established the product promotion target which made the technology research and development as the main line.Laiwu Steel Group Company developed a set of implementation plan,Including the transformation of main drive system about 550 rolling mill.In this paper, we analyze the transformation to describe the whole process including goal setting, scheme selection, design, verification, implementation, operation, summary, special steel enterprise development and renovation of equipment, provide a reference and puts forward some problems need to be paid attention to in the reform.Based on the present situation of the transformation of the former analysis, find the main drive system of the cardan shaft pendulum angle is too large, influent cardan shaft spline, rolling biting the impact of large, backward sliding bearing, change and difficulties, no running state detection, soft tooth surface gear ability is insufficient etc. problem.Because of the problems in the original system, we propose the overall renovation design, including of reducer, gear tooth, quick change and device, online monitoring, bearing, universal shaft, we propose the feasible scheme which increases special steel bar rolling mill rolling capacity, Lai steel 550 rolling mill have high strength steel production capacity, enhance the special steel research and development capabilities and market adaptability.The design reduces the transmission link and the weight of the box, meets the space constraints of the plant, realizes the goal of saving cost, reducing energy consumption, eliminating hidden dangers, and improving rolling capacity. Through the implementation and operation of transformation equipment maintenance, after the implementation of the project achieved good results, has been successful in many aspects, including the running stability and meet the requirements for rolling, control cost, maintenance cost saving, etc.