机械原理课程设计台式电风扇的摇头装置.doc
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江西农业大学机械原理课程设计
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目 录
1．台式电风扇摇头装置的功能与设计要求·································3
1.1工作原理及工艺过程················································3
1.2功能分解··························································3
1.3原始数据及设计要求················································3
1.3.1 原始数据
1.3.2 设计要求·····················································
1.4设计任务··························································3
2．执行机构的设计·····················································4
2.1（方案Ⅰ）··························································4
2.2（方案Ⅱ）··························································4
2.3（方案Ⅲ）··························································5
2.4（方案Ⅳ）··························································6
3．执行机构的辅助构件设计 ············································6
3.1滑销控制机构（方案Ⅰ） ············································6
3.2齿轮控制机构（方案Ⅱ）··············································7
4．减速机构的设计·····················································7
4.1蜗杆减速机构（方案Ⅰ）··············································7
4.2锥齿轮减速机构（方案Ⅱ）············································7
4.3行星轮系减速机构（方案Ⅲ）··········································7
5．方案的确定························································8
5.1原动机的选择·····················································8
5.2传动方案确定·····················································8
5.3有关参数及相关计算 ···············································8
5.3.1相关计算························································8
5.3.2传动构件的尺寸确定·················································8
6．尺寸与运动综合····················································9
6.1执行机构尺寸设计··················································9
6.2验算曲柄存在条件即最小传动角······································10
6.2.1曲柄存在条件·····················································10
6.2.2最小传动角验算····················································
7.系统总图···························································11
8.总体评价····················
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