1、 本科生毕业设计说明书(毕业论文) 题 目:三辊定径机的设计 学生姓名: 学 号: 专 业:机械设计制造及其自动化 班 级: 指导教师: I 摘摘 要要 无缝钢管的生产在西方国家里占管类钢材比例的 50%,而在我国的生产还和西方有 一定的差距,不过对它的生产进行了大量的投入,有望在本世纪赶上,不仅在数量上还 需要在质量上有所超越。 本设计就对包钢公司的三辊定径机作一分析、计算、校核等。其主要内容包括:定 径机的设计、调速系统的设计、润滑和冷却系统的设计。在原先只采用两辊式定径机存 在的弊端做一改造采用三辊定径机。其两者的区别主要是:前者可调但定径精度低,工 具备件少;后者定径精度高但不可调,机
2、架备件多。其实现在已经出现了新型可调式三 辊定径机,因此这种新型三辊定径机的出现将给我国无缝钢管的发展提供一个新台阶。 今后,我国无缝管材的生产反将转到采用先进制造技术,扩大品种,提高质量,降 低消耗方面来。因此,我们应该努力学好本专用知识,争取进一步有所改进有所创新。 关键词:关键词:定径机;调速系统;润滑系统;冷却系统;设计计算 内蒙古科技大学毕业设计说明书(毕业论文) II Abstract The production of seamless pipe in the nation of the nation of the west has about 50% in pipe steel
3、, and the production in our country has some gap with western nation but our country has carried on the input of large numbers hopefully has caught up with just this production. Not only in number but also in quality past. The design is about three rolls sizing mill in Bao Gang company analyze the s
4、teel tubes quality, calculate , check it. Compare two roll sizing mill to three rolls sizing mill. The main difference is the former can adjust but has a lower accurate degree , and has less tool . The latter has a higher accurate but cant adjust, has more tools. Now, there has appear new three roll
5、s sizing mill, which make our country a large developing space. Therefore in the future the pipe of steels production development will truly adopt advanced manufacturing technology to enlarge type, improve quality, reduce taste. Thus, we should try our best to learn professional knowledge. Key words: sizing mill; speed control system; lubrication systems; cooling system; design calculation 1 目 录 摘 要.I Abstract II 目 录1 第一章 引 言.5 1.1 概述5 1.2 无缝管生产简介.5 第二章 三辊定径机系统.12 2.1 总体方案12 2.1.1 轧辊机架的确定.12 2.1.2 传动装置的确定.14 2.1.2.1 单独传动.14 2.1.2.2 集体传动.14 2.1.2.3