机床主传动系统设计说明书

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1、目录1.摘要·······································································32.绪论·······································································33．设计计算···································································33.1车床的规格系列和用处···················································33.2

2、操作性能要求···························································44.主动参数参数的拟定·························································44.1确定传动公比φ·························································44.2主电动机的选择·························································45.变速结构的设计················

3、·············································45.1主变速方案拟定··························································45.2变速结构式、结构网的选择·················································45.2.1确定变速组及各变速组中变速副的数目································55.2.2变速式的拟定··················································

4、····55.2.3结构式的拟定······················································55.2.456结构网的拟定······················································55.2.5结构式的拟定·····················································65.2.6结构式的拟定·····················································65.2.7确定各变速组变速副齿数···········

5、································85.2.8绘制变速系统图···················································96.结构设计··································································96.1结构设计的内容、技术要求和方案··········································96.2展开图及其布置·······················································

6、··96.3I轴（输入轴）的设计······················································106.4齿轮块设计·····························································106.5传动轴的设计···························································106.6主轴组件设计···························································126.6.1各部分尺寸的选择

7、·················································126.6.2主轴材料和热处理·················································126.6.3主轴轴承·························································12566.6.4主轴与齿轮的连接··························