Z5140型立式钻床主轴箱的设计.docx

课程设计说明书

Z5140型立式钻床主轴箱的设计

目录

序言···················································1

1.概述···············································2

2.机床参数的拟定········································2

3.传动方案拟定············································3

3.1传动方案设定··········································3

3.2主电机的选择··········································4

4.转速图的拟定············································4

4.1选定公比··············································4

4.2选择结构式············································4

4.3确定是否需要增加降速的定比传动副······················5

4.4分配各变速组的最小传动比，拟定转速图···················5

4.5确定主轴和各传动轴的计算转速：·························7

4.6画主传动系统图········································7

5.齿轮的确定··············································8

5.1齿轮齿数的确定应注意的问题：···························8

5.2齿数的计算············································8

5.3齿轮参数的确定········································9

5.4齿轮的布置············································10

6.传动件的估算与验算······································10

6.1传动轴的估算和验算····································10

6.2齿轮模数的估算和计算··································12

6.3轴承选择··············································14

体会及总结···············································16

参考文献··················································16

PAGE

PAGE3

序言

《机械制造装备设计》课程设计是学生学完基础课、技术基础课及有关专业课的基础上，集合机床主传动部件（主轴变速箱）设计进行的综合训练，其目的：

（1）掌握机床主传动部件设计过程和方法，包括参数拟定、传动设计、零件设计、结构设计等，培养结构分析和设计的能力。

（2）综合应用过去所学的理论和知识，提高联系实际和综合分析的能力。

（3）训练和提高设计的基本技能，如：计算、制图、应用设计资料、标准和规范，编写技术文件（说明书）等。

本课程设计以加工设备中Z5140立式钻床主轴箱为对象，是机械制造装备设计课程的一个重要的实践性环节，其作用是巩固和扩展学生在技术基础课和专业课学习中所获得的知识，培养学生理论联系实际的工程意识以及独立的工作能力。通过本课程设计，可以使学生初步了解专用切削机床设计的方法和步骤，熟悉有关标准、规范、手册和其他资料的运用，学会编写设计说明书、绘制部件装配图及零件工作图，以及有计划地组织自己的工作，为完成毕业论文、毕业设计取得经验。

在整个课程设计过程中，要求学生充分利用所学到的知识，独立并具有一定创造性地进行设计，使设计合理并富有先进的设思想。设计中应充分考虑结构工艺性，设计要求工作可靠、装拆方便、操作简单，保证零件的强度、刚度和使用寿命，同时要保证技术安全性且维护保养方便等。

必须指出，设计中不应凭空想象或片面追求新奇而不切合实际，真正的创造性设计应建立在现有的科学技术水平基础之上。目前生产的各种机器都是