机械5

950滚筒式飞剪机的设计 摘要 滚筒式飞剪是一个在轧钢行业广泛应用的重要设备。其结构简单，使用方便、可靠，一般装在连轧机组或横切机组上。主要用于对轧件进行切头、切尾或剪切规定尺寸。 本文主要是研究热轧高线为剪切对象的滚筒式飞剪。利用当今流行的滚筒式飞剪设计算法，获得滚筒式飞剪力能参数计算优化理论与方法，根据工艺提供的被剪轧件的剪切温度、剪切材料、剪切规格和轧件运动速度等其他工艺参数，使飞剪在满足工艺条件的情况下，电机容量、滚筒式飞剪结构尺寸等达到最优化。 关键词： 滚筒式飞剪、高速线材、剪切力、电动机、润滑 950 drum-flyi
ng shear Abstract Drum flyi
ng shear is a importa
nt equipme
ntwhich is usi
ng i
n steel rolli
ng i
ndustry. Its structure is simple, a
nd it is easy to use, reliable, ge
nerally packed i
n strip mill or tra
nsectio
n U
nit. It is mai
nly for theworkpiece for the first cutti
ng, sheari
ng off its tail or size requireme
nts. This study i
nvestigated the hot a
nd cold-rolled strip steel shear object to the drum-flyi
ng shear. Usi
ng today's popular roller flyi
ng shear desig
n algorithm, to get a roller flyi
ng shear parameter optimizatio
n theory a
nd the calculatio
n method. Accordi
ng to the process provided by the shear shearworkpiece temperature, shear materials, specificatio
ns a
nd shearvelocityworkpiece, a
nd other process parameters, Shear made i
n meeti
ng the co
nditio
ns, the electrical capacity, roller flyi
ng shear geometry to achieve the most optimal. Keywords: Drum flyi
ng shear, high-speedwire, shear stre
ngth, electrical, lubricatio
n 目录 摘要…………………………………………………………………………………Ⅰ Abstract……………………………………………………………………………..Ⅱ 第一章绪论………………………………………………………………………….6 1.1设计的来源、目的、意义……………………………………………...6 1.2线材生产的基本知识……………………………………………………6 1.3线材工艺的发展现状及未来趋势………………………………………7 1.4飞剪机类型与结构………………………………………………………8 1.4.1滚筒式飞剪机……………………………………………………8 1.4.2曲柄回转杠杆式…………………………………………………9 1.4.3曲柄偏心式飞剪机……………………………………………..10 1.4.4摆式飞剪机……………………………………………………..10 1.4.5曲柄摇杆式飞剪机……………………………………………..10 1.5对飞剪机的要求………………………………………………………..10 1.5.1作用……………………………………………………………..10 1.5.2滚筒式飞剪工作制度…………………………………………..11 1.6整体方案的确定………………………………………………………..10 1.6.1单电机传动方案………………………………………………..11 1.6.2双电机传动方案………………………………………………..11 第二章滚筒式飞剪力能参数计算…………………………………………………13 2.1滚筒式飞剪剪切过程分析……………………………………………….13 2.2剪切力与剪切力矩的计算……………………………………………….14 2.3剪切功的计算…………………………………………………………….16 第三章电动机的选择………………………………………………………………17 3.1电动机选择……………………………………………………………….18 3.1.1计算总的静力矩…………………………………………………18 第四章滚筒式飞剪零部件强度计算………………………………………………19 4.1转速及扭矩的计算………………………………………………………..20 4.1.1传动比的确定……………………………………………………20 4.1.2输入轴的转速及扭矩……………………………………………20 4.2齿轮传动及参数计算……………………………………………………..20 4.2.1选择材料…………………………………………………………20 4.2.2根据齿轮弯曲疲劳强度设计……………………………………21 4.2.3校核齿面的接触强度……………………………………………22 4.2.4齿轮的尺寸明细及工作图………………………………………23 4.3轴的设计与校核………………………………………………………….25 4.3.1选择轴的材料……………………………………………………25 4.3.2初步估算轴径……………………………………………………25 4.3.3轴的尺寸结构分析………………………………………………26 4.3.4联轴器的选用……………………………………………………27 4.3.5轴承的选择………………………………………………………27 4.3.6轴的校核…………………………………………………………28 4.4轴承与键的校核………………………………………………………….32 4.4.1轴承的校核………………………………………………………32 4.4.2键的校核…………………………………………………………32 4.4.3对联轴器进行校核………………………………………………33 4.5刀架的设计与校核……………………………………………………….33 4.5.1刀架的受力分析…………………………………………………34 4.5.2刀架的强度校核…………………………………………………34 4.6电动机的校核…………………………………………………………….36 4.6.1电动机的发热校核………………………………………………36 4.6.2过载校核…………………………………………………………38 第五章设备的冷却及润滑…………………………………………………………40 5.1齿轮的润滑……………………………………………………………….40 5.2对轴承的润滑……………………………………………………………40 5.3 950飞剪的维护与保养…………………………………………………40 5.4飞剪机刀架的安装和拆卸……………………………………………….40 结束语…………………………………………………………………………….42 参考文献………………………………………………………………………….44