摘要：在线材、棒材和管材等型材的生产流程中，拉拔工艺是十分重要的一环。尖头机（俗称轧尖机）是在拉拔机生产线前面的一台设备。拉拔机是将线材或者棒材经过拉拔模后直径减小的生产过程，经过拉拔后的线材或者棒材强度有所提高，表面粗糙度数值减小质量有所提高。尖头机是金属拉丝机及冷拔生产设备的机械设备，原材料端部需经轧尖机轧小后穿过拉拔模孔，方可进行拉拔加工材料。尖头机供金属线材轧尖、穿模拔头之用。拉拔前头部轧尖作业。电动尖头机，是铜、铝、铁丝拔丝设备的辅助设备。本机由轧滚、减速传动组成。本论文通过对尖头机的简单研究和论述的介绍了尖头机的设计过程和设计要素。5681
关键词： 辊式轧机；尖头机；拉拔辅助
Roll-pointed drive design
Abstract: In the drawing process is a very important part of the production process of the wire, rod and tube profiles. Tip machine (commonly known Pointing Machine) is a piece of equipment in the front of the production line of the drawing machine. The drawing machine to the wire or rod through a drawing die after the reduced diameter of the production process, after the drawing after the wire or rod strength increased, the surface roughness decreases the value of the improved quality. Pointed machine metal wire drawing machines and cold drawing production equipment machinery and equipment, raw materials, end of subject Pointing Machine rolling small through the drawing die hole, before drawing processing materials. Tip rolling machine for metal wire pulling head with sharp, wear mode. Drawing the former head Pointing jobs. The electric prongs machine, the auxiliary equipment of the copper, aluminum, iron wire Roberts. The machine consists of rolling roll, consisting reduction drive. This paper pointed machine simple and discusses the the pointed design process and design elements.
Keywords: roller mill; pointed machine; drawing auxiliary
目 录
绪论 1
1.1 钢铁行业现状 2
1.1.2 我国钢铁行业的现状 4
1.1.3 本课题研究的目的 4
2 尖头机的发展史 4
2.1 尖头机的含义和发展 4
2.2 尖头机的组成 4
2.3 尖头机的分类 5
2.4 尖头机的技术 5
2.4.1 二辊式尖头机工作原理 5
2.4.2评定轧辊使用寿命的方法 6
2.5 尖头机和轧机的区别 6
3 辊式尖头机传动设计方案确定 7
3.1 课题介绍和意义 8
3.2 方案的初步选择 9
3.3 方案的比较 9
3.4 设计方案的确定 11
3.5 设计思路 13
3.5.1设计时要克服以下问题 13
3.5.2 尖头机传动的设计过程 14
3.6 蜗轮蜗杆的基本参数 14
3.7 蜗轮蜗杆正确啮合的条件 15
3.8蜗轮蜗杆几何尺寸计算，需注意的几个问题 15
3.9蜗轮蜗杆校核 15
3.10 蜗轮轴的设计内容和要求 16
3.11 轴的设计步骤 17
3.12 本课题轴设计的主要步骤 17
3.13 蜗轮蜗杆传动部分结构图 18
4 带轮的设计 19
4.1 带轮型号 19
4.2 带轮的主要参数 20
4.3 带轮的设计 21
5 计算 21
5.1计算列表 21
6 小结 45
致 谢 46
参考资料 47 辊式尖头机传动设计+CAD图纸:http://www.youerw.com/jixie/lunwen_2820.html