圆盘剪切机设计+CAD图纸
毕业论文关键词：剪切机；圆盘剪切机；结构设计；强度校核
The design of the shearing machine
Abstract：Shearing machine is used to cut steel plate in the metal smelting processing equipment. In this paper, on the basis of understanding the structure of the shearing machine at home and abroad, shear, the research status in China to determine the structure of the shearing machine, choose to design a disc shears. The disc shear can cooperate unwinder together, flying shear and straighten machine, complete the trimming, unbend operation, etc. Design idea is as follows: first, determine the shears of arrangement of institutions and the relevant technical parameters, choice of cutting pause disc shear force and motor, motor for checking; Next to the major parts of checking, have calculation and checking of transmission gears, transmission shaft of checking, shaft arrangement and parameters, selection of bearing and check, the selection of key and check, the design of the control system, etc. Finally, using CAD software to draw the shear machine assembly drawing and part drawing.
Key Words：shearing machine；the disc shearing machine；structural design; strength check
目 录
1 绪论 1
1.1 课题背景及研究现状 1
1.1.1 剪切机概述 1
1.1.2 本课题的意义 2
1.1.3 国内剪切机的发展趋势 2
1.1.4 国外剪切机的发展趋势 3
1.2 毕业设计任务 4
1.2.1 设计目的 4
1.2.2 设计参数 5
1.2.3 设计内容 5
2 剪切机方案的设计 6
2.1 圆盘剪切机的整体结构及宽度调整装置方案 6
2.2 上下刀片的大小方案选择 7
2.3 径向间隙调整方案选择 7
2.3.1 刀盘径向间隙（重合度）调整 7
2.3.2 侧向间隙调整 8
2.4 圆盘剪切机总体结构 9
3 电机容量的计算 11
3.1 定性选电机 11
3.2 选择电动机的容量 11
3.3 确定电机 14
3.4 电动机的校核 14
3.5 减速机的选择 15
4 主要零件强度计算校核 16
4.1 齿轮的计算与校核 16
4.1.1 齿轮的计算 16
4.1.2 按接触疲劳强度校核 17
4.1.3 按弯曲疲劳强度校核 20
4.2 传动轴的强度校核计算 22
4.2.1 轴的材料及其机械性能 22
4.2.2 轴上零件布置及基本参数 22
4.2.3 按弯扭合成进行轴的强度校核 23
4.2.4 按疲劳强度进行精确校核 26
4.3 轴承的选取及校核 29
4.3.1 根据工作条件选取轴承类型 29
4.3.2 根据轴承结构确定轴承的型号 30
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