毕业论文设计__最大加工直径__φ250普通车床主轴箱部件设计课程设计任务书.doc

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1、目录1.课程设计任务书·····························································42.绪论·······································································63．设计计算···································································63.1车床的规格系列和用处···················································63.2操作

2、性能要求···························································74.主动参数参数的拟定·························································74.1确定传动公比φ·························································74.2主电动机的选择·························································75.变速结构的设计···············

3、··············································85.1主变速方案拟定··························································85.2变速结构式、结构网的选择·················································85.2.1确定变速组及各变速组中变速副的数目································85.2.2变速式的拟定··············································

4、········95.2.3结构式的拟定48······················································95.2.4结构网的拟定······················································95.2.5结构式的拟定·····················································105.2.6结构式的拟定·····················································105.2.7确定各变速组变速副齿数··

5、·········································115.2.8绘制变速系统图···················································136.结构设计··································································136.1结构设计的内容、技术要求和方案··········································136.2展开图及其布置·······································

6、··················146.3I轴（输入轴）的设计······················································146.4齿轮块设计·····························································146.5传动轴的设计···························································156.6主轴组件设计······················································

7、·····166.6.1各部分尺寸的选择·················································166.6.2主轴材料和热处理·················································166.6.348主轴轴承·························································176.6.4主轴与齿轮的连接························