毕业设计(论文): www.wenku168.com小型冷带钢卷取机设计摘 要冷轧带钢的卷取绝大多数采用卷筒式卷取机，其设备配置较为简单，主要由卷筒及其传动系统，压紧辊，活动支撑和推卷、卸卷等装置组成。小型冷带钢卷取机不仅用来缠卷，有时还用来开卷。在轧制过程中依靠这类卷取设备可以建立前后张力，这样可以降低轧制压力，改善轧辊的轧制稳定性。根据现场调研，原卷取机的张力较小，现增加了带钢的张力，同时重选了电机容量。进行了主要零件的强度计算，并进行了轧机经济效益评价。该卷取机采用直流可调速电机，保证卷取的恒定张力，提高了带钢的表面质量。该轧机可供小型冷轧厂使用，具有良好的经济效益。关键词：卷取机，表面质量，恒定张力The design of cold-strip reelabstractOne of the cold-rolled belted steel fetches the overwhelming majority and adopts reel type a fetching machine, its device layout is comparatively simple, by the reel and transmission mainly , compress tightly the roller , support and pushes one , unload the devices , such as one ,etc. to make up in activity. Small-scale cold a fetching machine of belted steel is not only used for twining one but also used for opening a book sometimes. Tension before and after depending on this each and fetching equipment and can be set up in the rolling course, so can reduce the rolling pressure , improve the rolling stability of the roll . According to surveying and studying live, the tension of original fetching machines is relatively small, increase the tension with steel now, selected the capacity of the electrical machinery again at the same time . The intensity of carrying on the major part is calculated, and carry on the economic benefits of the rolling mill and appraise . This fetching machine adopts the adjustable speed electrical machinery of direct current, guarantee a invariable tension fetched, have improved the surface quality with steel. This rolling mill is for small-scale cold-rolled factory to use , have good economic benefits. Keyword: cold-strip reel, surface quality, invariable tension 目 录1 绪 论11.1 选题的背景和目的11.2 带钢卷取机国内外发展现状31.3 冷带钢卷取机研究内容和方法42 冷带钢卷取机方案的选择与评述73 电机的选择93.1 带钢张力的计算及最大张力的确定93.2 卷取机主要结构尺寸的选择93.3 初选电动机容量103.4 电动机轴上的力矩的计算123.5 电动机的校核144 卷取减速机的选择与计算164.1 减速机的速比的分配164.2 减速机齿轮的计算165 主要零件的强度计算235.1 卷筒轴的设计与计算235.2 卷筒轴轴承的计算345.3 凸轮机构的设计366 润滑方法及润滑油的选择376.1 润滑油的选择376.2 润滑方法377 设备可靠性与经济评价387.1 机械设备的有效度387.2 投资回收期38结 论40致 谢41参 考 文 献42附 录43更多毕业设计：www.56doc.com www.papersay.com www.2bysj.cn www.doc163.com www.think58.com