摘要本毕业设计用简明的语言有重点的介绍了普通的升降台铣床的设计改造过程，先通过研究背景及选课题的意义的介绍，来引出本设计的意义。然后从参数拟定，传动设计，传动件的估算和验算，然后通过装配图进行各部结构设计和主轴组件的设计，各个部件的验算设计。以齿轮、带轮、皮带轮、轴承、箱体等参数设计为重点。49742

在本课题开发过程中使用的主要的方法有：1.搜集铣床主轴变速箱的相关资料和书籍。2.阅读文献，了解当前铣床主轴变速箱的结构和工作的特点，懂得铣床主轴变速箱大体的设计结构和思路。3.依据所阅读的有关相关资料文献，拟定铣床主轴变速箱设计的可行性方案。4.熟悉AutoCAD软件的各方面操作，为以后的主轴箱展开图（装配图），主轴想展开图的剖切图，零件图做好准备。5.查阅手册，对主轴变速箱各个系统完成相关设计和选用。6.对所设计的铣床变速箱设计进行优劣评估，优化最后的设计结果。

毕业论文关键词：齿轮，结构设计，轴

Abstract This graduation project focused and concise language the ordinary milling machine design transformation process, first introduced by the significance of the research background and Selected Topics, leads to the significance of this design. Then prepared from the parameters, transmission, transmission of the design estimates and checking ministries structural design and the design of the spindle components, checking the design of various components, and then through the assembly drawing. Parameter design of gears, pulleys, pulleys, bearings, cabinet.

    The main method used in the development process of this project are: 1. To collect relevant information and books of the milling machine spindle gearbox. 2.Read literature to understand the current milling spindle gearbox structure and characteristics of the work, understand the general design of the milling machine spindle gearbox structure and ideas. 3 .based on reading the relevant information literature, prepared the feasibility of milling spindle gearbox design program. 4.Familiar with AutoCAD software in all aspects of operations, expansion plan for the future spindle box (assembly diagram), the spindle would like to expand the map section map, part drawings to prepare.5. Consult the manual, complete the design and selection of the various systems of the spindle gearbox. 6.Pros and cons of assessment, the design of the milling machine gearbox design and optimize the final design results.

Keywords: gear, structural design, shaft

目录

第一章 绪论 1

1.1目的和意义 1

1.2课题背景 1

1.4研究的主要内容 3

第二章铣床参数的拟定 4

2.1参数拟定 4

2.2主电动机动力参数的确定 4

第三章 运动方案设计 5

3.1有级变速主动传动系统的设计概念 5

3.2传动组传动顺序的安排 5

3.3传动系统的扩大顺序的安排 6

3.4拟定转速图 6

3.5齿轮齿数的确定和布置 7

第四章 传动件的估算和验算 9

4.1三角带传动的估算 9

4.1.1选择三角带的型号 9

4.1.2确定带轮的计算直径D1，D2