c6132普通车床主传动系统设计说明书.doc

C6132普通车床主传动系统设计说明书


摘要

主传动系统设计是机床设计中非常重要的组成部分，本次设计主要由机床的级数入手，于结构式、结构网拟定，再到齿轮和轴的设计，再选择各种主传动配合件，对轴和齿轮及配合件进行校核，将主传动方案“结构化”，设计主轴变速箱装配图及零件图，侧重进行传动轴组件、主轴组件、变速机构、箱体、润滑与密封、传动轴及滑移齿轮零件的设计，完成设计任务。
本次突出了结构设计的要求，在保证机床的基本要求下，根据机床设计的原则，拟定机构式和结构网，对机床的机构进行精简，力求降低生产成本；主轴和齿轮设计在满足强度需要的同时，材料的选择也是采用折中的原则，没有选择过高强度的材料从而造成浪费。
【关键词】车床、主传动系统、结构式、电动机。

Abstract
    Main drive system design is Very important part of the Machine Design,The design of the series to start primarily by machine,In the structure, the structure network developed, to the design of gears and shafts,Choose a variety of main drive with the pieces of the shaft and gear, and checked with the parts ，design and motive of completion sport spread the lord to move the project"the structure turn" , Design a principal axis to become soon a box assemble diagram and spare parts diagram and lay particular emphasis on to carry on spread to move stalk module, principal axis module and become soon organization, box a body, lubricate and seal completely, spread to move stalk and slippery move wheel gear spare parts of design to complete design tasks.
This highlights the structural design requirements,under the basic requirements for ensuring the machine ,According to the principles of machine tool design,Development of institutional and structural net,Streamlining of the machine tool sector,Strive to reduce production costs,No choice of materials resulting in high strength waste.

【Keywords】lather, Main drive system,Structure , Electric motor.
 

目录
   绪论 1
1.主轴极限转速的确定 2
2.  主动参数的拟定 3
2.1确定传动公比 3
2.2主电动机的选择 4
3.普通车床的规格 5
4.变速结构的设计 5
4.1确定变速组及各变速组中变速副的数目 5
4.2结构式的拟定 5
4.3结构网的拟定 8
4.4各变速组的变速范围及极限传动比 9
4.5确定各轴的转速 9
4.6绘制转速图 10
4.7确定各变速组变速副齿数 10
4.8绘制变速系统图 12
5.传动件的设计 13
5.1带轮的设计 13
5.2传动轴的直径估算 16
5.3确定各轴转速 16
5.4传动轴直径的估算：确定各轴最小直径 17
5.5键的选择、传动轴、键的校核 18
6.各变速组齿轮模数的确定和校核 20
6.1齿轮模数的确定： 20
6.2齿轮的设计 24
7.齿轮校验 26
7.1齿轮强度校核 26
7.1.1校核a组齿轮 26
7.1.2 校核b组齿轮 28
7.1.3 校核c组齿轮 29
8.主轴组件设计 31
8.1主轴的基本尺寸确定 31
8.1.1外径尺寸D 31
8.1.2主轴孔径d 31
8.1.3主轴悬伸量a 33
8.1.4支撑跨距L 33
8.1.5主轴最佳跨距的确定 33
8.2主轴刚度验算 35
8.3主轴刚度验算 36
8.4各轴轴承的选用的型号 38
谢辞 38
小结 38
参考文献 39