摘要 国内对环境绿化越来越重视，推动着园林机械设备不断的发展，环境保护这种硬性需求所带来的附加产品的市场是非常广阔的，剪草机就是市场中需求比较大的园林机械设备。为了更了保护美化我们的城市生活环境，减少环境污染，更好的维护生态环境，防止水土流失，我国很多的地区都开始发展草坪和地被植物，尤其是有沙尘暴发生的地区，更应该多发展草坪和地被植物，另外相对城市而言，也有利于减少噪音和二次扬尘。 这次设计的是手推式剪机，文中详细地阐述了设备的各个装置，包括传动和驱动装置等。主要介绍的是剪草机的传动系统部分的设计计算，这次设计的手推式剪草机适合修剪一些小型的草坪，并且工作的时候原料消耗比较小，制造成本低，另外工作时形的污染也很小，并且从满足环保的要求。 关键词：剪草机，驱动装置，传动装置， Abstract The i
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n device, 目录 摘要I Abstract II 目录III 第1章绪论1 1.1设计背景1 1.2国内外研究状况2 1.3发展趋势3 第2章总体方案设计5 2.1工作原理5 2.2参数分析选择6 2.3设计结构方案8 第3章传动机构设计10 3.1汽油发动机选型计算10 3.2传动比分配10 3.3锥齿轮设计计算11 3.4 V带设计计算13 3.5轴的设计计算16 3.6轴承计算校核21 第4章执行机构设计23 4.1切割装置设计23 4.2骨架设计23 4.3后壳体结构设计24 4.4轮轴机构设计25 结论26 参考文献27 致谢28 第1章绪论 1.1设计背景 日常草坪要进行一些养护修剪工作，这个时候就要用到草坪剪草机。目前市场上的剪草机的机类品种非常的多，不管我们修护草坪用其中的哪一种机型，首先我们都应该要对自己所选机剪草机的性能要完全知道，另外还要知道在修剪草坪的时候怎么样去使用剪草机，而且还要知道剪草机的日常维护和保养的措施，因为只有知道这些内容，才能让剪草机