【作者】 刘建业；

【导师】 王勇勤；

【作者基本信息】 重庆大学 ， 机械电子工程， 2003， 硕士

【摘要】 地下卷取机（Down Coiler）是卷取带钢的重要设备，其用途是把轧制后的成品热轧带钢卷成钢卷。该设备广泛应用在带钢热连轧线、薄板坯连铸连轧线、中板坯连铸连轧线和炉卷轧机生产线上。现今我国各大钢铁企业所使用的地下卷取机都是从国外进口，由于该设备的使用及改造具有很大的经济效益和社会效益，为此必须使国内钢铁企业具备独立设计整台地下卷取机的能力。针对此情况，由中国第二重型机械集团公司和重庆大学共同承担该项课题的研究任务，目的是要从理论上根本解决地下卷取机的设计问题。本论文着重在于研究地下卷取机力能参数和软件编制两部分。涉及到的主要内容有：卷取张力的分析计算；工作机构的受力分析及强度校核；卷取速度加速度制度分析及相关计算；力矩分析计算和卷筒电动机的选取；软件设计思想及软件展示；助卷辊液压踏步控制系统论述等。各章节内容综合起来具体涉及到了机械、电机、液压、自动控制和软件工程等各个知识层面。该课题的研究工作，不仅运用到了材料力学、理论力学、高等数学、轧钢机械等基础知识，也运用到了数值分析、有限元分析、电液伺服控制等现代知识理论，并且充分研究了带钢弹塑性弯曲变形理论，拓广了卷取张力的计算方法。在推导数学模型和力学模型方面，借助了反求工程、优化设计、计算机辅助等现代设计方法。所编制的软件界面友好、功能齐全，不仅能够自动完成全部参数的设计任务，而且还具有很强的工具作用，可以帮助设计人员分析和论证各参数的规律性及取值的合理性。该课题在国内外相关资料缺乏的条件下，建立起了各个力学模型和数学模型，从理论上解决了地下卷取机基本参数的设计问题。其理论和设计方法具有新颖性、创造性和先进性，其计算结果具有准确性和可靠性，总体而言该项课题的研究成果在国内处于领先地位。其成果的应用将改变我国重机业在该设备的设计上长期依赖国外技术的局面，同时也有助于提升我国钢铁企业的国际竞争力。更多还原

【Abstract】 Down coiler is one of the most important equipment for coiling strip. It is used to coil hot strip into coiled steel, and widely used in hot strip mill, thin and middle thickness slab cast&rolling mill, and steckel mill.At present, all down coilers used in large steel enterprises of our nation were imported. It has great economic benefit and social benefit to apply and maintain this equipment. So, domestic steel enterprises must have the ability to design down coiler in whole independently. Under the circumstance, China National Erzhong Group Co. took on this researching task together with Chongqing University aimming at fundamentally solving the basic design problem for down coiler from theory.This paper puts emphasis upon two parts, one of which is mechanics parameter, and the other is software development. The main researching work involves:Analysis and calculation of coiling tension; Force analysis and intensity checking of the working mechanisms; Analysis and correlative calculation of speed&acceleration scheme for coiling; Analysis and calculation of force moment and selecting electromotor for coiler mandrel; Conception of design software and laying out software; Statement on the hydraulic automatic jumping control system for wrapper roller and so on. The contents summarized in each chapter relate to many sciential domains, which include mechanism, electro technician, hydraulic pressure, automation, software engineering, etc.In this researching task, it is applied that not only the basic knowledge such as mechanics of materials, theoretical mechanics, higher mathematics, steel rolling engineering, but also the intellective theory up to date such as numerical analysis, finite element analysis, electrohydraulic servo control, etc. At the same time, the theory of elastic-plastic bending deformation for strip is deeply studied, and the method of calculating coiling tension is extended. On the aspect of creating mathematics and mechanics model, the modernistic design method such as inverse-do engineering, optimization design, CAD was adopted. The software has friendly interface and integrated function, and can<WP=6>automatically design all the parameters; In addition, it is provided with the implemental function, which can help technical personnel analyze and testify the disciplinarian of the parameters and the rationality of the certain result.Under the circumstances of lacking information internationally, this task created the mathematics and mechanics models, and solved the basic design problem about the main parameters for down coiler from theory. Its theory and design method have some characters in novelty, creativity, advantage, and its result has veracity and reliability. In a word, its researching achievement keeps ahead in domestic. The application of its achievement will have caused national heavy industry to change the phase of relying on foreign advanced technique on design this equipment, furthermore, and make for enhancing the international competition of domestic steel enterprises.更多还原