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XXXX 大学 毕 业 设 计 说 明 书 设计Q扣1：1459919609Q扣2：1969043202 学 院： 专 业： 题 目： 手推式草坪修剪机的设计 指导教师： 职称: 职称: 20**年**月**日 目 录 摘 要 ··································································Ⅲ ABSTRACT ····························································Ⅳ 1 前 言 1.1 手推式草坪修剪机的背景及研究意义 ····································1 1.2 手推式草坪修剪机的研究现状及发展趋势 ································2 1.3 手推式草坪修剪机 ····················································4 1.4 本课题的设计任务 ····················································5 2 手推式草坪修剪机的总体设计 2.1 手推式草坪修剪机的工作原理 ··········································6 2.2 手推式草坪修剪机的主要结构 ·········································6 2.2.1 传动系统 ························································7 2.2.2 剪草机构 ························································7 3 手推式草坪修剪机机械结构设计计算 3.1 传动系统 ···························································9 3.1.1 齿轮的确定 ······················································9 3.1.2 轴的确定 ·······················································22 3.2 剪草机构 ···························································26 3.1.1 滚刀的设计 ·····················································26 3.1.2 底刀的设计 ·····················································27 4 手推式草坪修剪机的使用说明 4.1 安全事项···························································28 4.2 安装·······························································28 4.3 维护保养···························································30 5 结 论 ································································31 谢 辞 ··································································32 参考文献 ·······························································33 摘 要 草坪是现代社会的重要组成部分，也是社会文
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