薄板精制冷轧机设计说明书.doc

薄板精制冷轧机的设计

摘  要
薄板精制冷轧机是以四辊轧机为基础，从运动参数、力能参数和几何参数入手，经改良设计的五辊轧机，兼备四辊和六辊轧机的优点，并具有结构简单，安装、调试方便，轧制精度较高的特点。冷轧机是冷轧生产的主体设备，为了满足冷轧带钢生产的品种、规格、质量及不同生产规模的要求，冷轧带钢生产工艺经历了从单张到成卷生产的变革，由可逆式连轧到全连续联合机组的发展，形成了各种形式和不同特色的冷轧机。现代冷轧机的装备水平也有了很大提高，并趋向高效率、高质量、连续化和自动化。冷轧机成为现代钢铁工业中高效率生产设备之一，是钢铁工业技术发展和装备水平提高的一个重要标志。本文综述了薄板冷轧的发展和冷轧机的工作特点，按照机械设计的要求，采用相关理论与经验公式对主要零件进行了设计计算；包括总体方案设计，主传动系统设计，压下系统设计，机架设计和三维模拟装配等内容；对方案的可行性，可靠性进行了讨论，最后得出结论：设计的薄板精制冷轧机可以用于工业生产。
   
关键词：薄板精制；冷轧机；传动系统；压下系统；机架；模拟装配

The design of thin refined cold rolling mill
Abstract
Plate rolling mill is made based on four rolling machine, from movement parameters, force can parameters and geometric parameters of the improved design, the five roller mill, have both four roll and six roller mill advantages, and has simple structure, convenient installation, commissioning, rolling precision of characteristic. Cold rolling mill is the main equipment of the cold rolling mill production line, in order to satisfy the varieties, cold strip mill production specifications, quality and different requirements, the production scale of cold strip mill production process has experienced from leaflet to volumes production change, by reversible type and rolling to the continuous development of joint unit, formed various forms and different characteristics of cold rolling mill. Modern cold rolling mill equipment level has greatly improved, and incline to high efficiency, high quality, continuous and automation. Cold rolling mill is one efficient production equipment of steel industries in modem iron and an important sign of the steel industry technology development and equipment level improvement. This paper reviews the development of sheet cold rolling mill and characteristics of the work, according to the mechanical design requirements, adopting relevant theoretical and empirical formula of the design and calculation of main parts; Including the content of overall scheme design, main transmission system design, pressing system design, frame design and 3d simulation assembling; The feasibility of schemes, reliability are discussed, and finally reached the design of rolling mill can invest in the conclusion of the actual.

Keywords: Thin refined, cold rolling mill, transmission system, pressing system, frame, analog assembly

目  录
1  绪论 1
1.1选题背景及目的 1
1.2 冷轧技术及冷轧机的发展 1
1.3 冷轧薄板生产的发展历史 2
1.4 冷轧薄板发展迅速的原因 3
1.5 冷轧薄板轧机的发展动向 5
2  总体方案设计 6
2.1 轧辊的布置方式 6
2.2 压下系统的结构形式 7
2.3 机架的结构形式 8
3  主传动系统的设计与校核 9
3.1 设计参数 9
3.2 轧辊的设计及主要参数的确定 9
3.2.1 初选轧辊材料 9
3.2.2 轧辊参数确定 9
3.3 轧制力的计算 12
3.3.1 轧制力计算简介 12
3.3.2 薄板精制冷轧机的轧制力计算 13
3.4 轧辊受力分析及其传动力矩的计算 15
3.4.1 轧辊受力分析及计算 15
3.4.2 轧制力在接触弧上作用点的位置 18
3.4.3 轧辊传动力矩的计算 19
3.5轧机主电机的选择及校核 19
3.5.1 初选电机 19
3.5.2 主电机上的力矩及计算 20
3.5.3 电动机容量校核 21
4  轧制系统的设计与校核 22
4.1 轧辊强度校核 22
4.1.1 轧辊破坏的原因 22
4.1.2 轧辊强度校核 22
4.2 轧辊轴承的选择及寿命计算 26
4.2.1 轧辊轴承的工作特点及选用 26
4.2.2 轧辊轴承的寿命计算 27
4.3 工作辊传动的稳定性 29
5  压下系统的设计与校核 30
5.1 板带轧件压下装置的特点 30
5.2 传动螺丝和压下螺母的设计及计算 30
5.3 压下的受力分析计算 33
5.4 传动螺丝的传动力矩 35
5.5 压下电机的选择 36
5.6 传动螺丝轴承的选择 36
6  轧机其他参数的设计 38
6.1 轧机机架的设计及校核 38
6.1.1 机架参数的设计及选择 38
6.1.2 闭式机架的强度计算 39
6.2设备的环保质量分析 43
7  SOLIDWORKS模拟装配 44
7.1 SOLIDWORKS软件特点 44
7.2 SOLIDWORKS模拟装配图 44
结   论 49
致   谢 50
参考文献 51