机械制造装备课程设计--普通车床主轴箱部件设计
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机械制造装备课程设计--普通车床主轴箱部件设计1.课程设计任务书·····························································4
2.绪论·······································································6
3.设计计算···································································6
3.1车床的规格系列和用处···················································6
3.2操作性能要求···························································7
4.主动参数参数的拟定·························································7
4.1 确定传动公比φ·························································7
4.2 主电动机的选择·························································7
5.变速结构的设计·····························································8
5.1 主变速方案拟定··························································8
5.2 变速结构式、结构网的选择·················································8
5.2.1 确定变速组及各变速组中变速副的数目································8
5.2.2 变速式的拟定······················································9
5.2.3 结构式的拟定······················································9
5.2.4 结构网的拟定······················································9
5.2.5 结构式的拟定·····················································10
5.2.6 结构式的拟定·····················································10
5.2.7 确定各变速组变速副齿数···········································11
5.2.8 绘制变速系统图···················································13
6.结构设计··································································13
6.1 结构设计的内容、技术要求和方案··········································13
6.2 展开图及其布置·························································14
6.3 I轴(输入轴)的设计······················································14
6.4 齿轮块设计·····························································14
6.5 传动轴的设计···························································15
6.6 主轴组件设计···························································16
6.6.1 各部分尺寸的选择·················································16
6.6.2 主轴材料和热处理·················································16
6.6.3 主轴轴承·························································17
6.6.4 主轴与齿轮的连接·················································18
6.6.5 润滑与密封······················································18
6.6.6 其他问题·························································18
7.传动件的设计······························································18
7.1 带轮的设计·····························································18
7.2 传动轴的直径估算·······················································21
7.2.1 确定各轴转速·····················································21
7.2.2传动轴直径的估算:确定各轴最小直径································22
7.2.3 键的选择·························································23
7.3 传动轴的校核···························································23
7.3.1 传动轴的校核·····················································23
7.3.2 键的校核·························································24
7.4 各变速组齿轮模数的确定和校核···········································24
7.4.1 齿轮模数的确定···················································24
7.4.2 齿宽的确定·······················································28
7.4.3 齿轮结构的设计···················································29
7.5 带轮结构设计···························································30
7.6 片式摩擦离合器的选择和计算·············································31
7.7 齿轮强度校验···························································33
7.7.1 校核a变速组齿轮·················································33
7.7.2 校核b变速组齿轮·················································35
7.7.3 校核c变速组齿轮·················································36
7.8 轴承的选用与校核·······················································37
7.8.1 各轴轴承的选用···················································37
7.8.2 各轴轴承的校核···················································37
8.主轴组件设计······························································39
8.1 主轴的基本尺寸确定·····················································39
8.1.1 外径尺寸D·······················································39
8.1.2 主轴孔径d·······················································39
8.1.3 主轴悬伸量a·····················································40
8.1.4 支撑跨距L·······················································40
8.1.5 主轴最佳跨距L0的确定············································41
8.2 主轴刚度验算···························································43
8.2.1 主轴前支撑转角的验算·············································44
8.2.2 主轴前端位移的验算···············································45
9.心得体会及参考文献························································47
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