大学本科机械设计课程设计,(葡萄收获机的传动部分),绝对的原创!.doc

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1、.目录1设计任务····················································11.1已知条件·····························································11.2设计要求·····························································11.3设计示意图···············································

2、············12电机选择····················································12.1各传动效率的确定······················································22.2各主要功率的计算·····················································22.3各传动比及其分配·········································

3、············23带轮皮带的设计··············································34直齿圆柱齿轮的设计44.1轴Ⅰ和轴Ⅱ上一对齿轮的设计···········································44.2轴Ⅱ和轴Ⅲ上一对齿轮的设计···········································74.3轴Ⅲ和轴Ⅳ上一对齿轮的设计·······································

4、····105轴的设计及轴承的校核135.1轴Ⅰ的设计计算·······················································135.2轴承的校核···························································186键的设计196.1键的选择·····························································196.2校核键连接的强度···········

5、··········································197联轴器的选择计算207.1轴Ⅲ端的联轴器选择计算···············································207.2轴Ⅳ的联轴器选择计算·················································208减速器箱体及其附件的设计218.1减速器附件的选择··············································

6、·······218.2选择适当型号·························································219润滑与密封219.1齿轮的润滑···························································219.2轴承润滑·····························································229.3减速器密封······················

7、·····································229.4密封方法的选取·······················································2210设计总结23参考文献······················································24..1设计任务1.1已知条件：数据编号：48输出力矩1：10N/m输出速度1：20r/min输出力矩2：200N/m输出速度2：50r/min1.2设计要求工作

8、条件：一班制，连续单向运转。载荷平稳，室工作，有粉尘（运输带与卷筒及支承间，包括）卷筒轴承的摩擦阻力影响已在F中考虑）。使用期限：十年，大修期三年。生产批量：10台。生产条件：中等规模机械厂，可加工7-8级精度齿轮及蜗轮。动力来源：电力，三相交流（220/380V）。运输带速度允许误差：±5%。1.3设计示意图：图任务设计示意图2电机选择2.1各传动效率的确定η—联轴器效率：η=0.99η—闭式圆柱齿轮传动效率：η=0.98η—一对滚动轴承