1、 2014届届 分 类 号: 毕业论文（设计） 小型割草机的设计小型割草机的设计 姓 名 学 号 年 级 20102010 专 业 机械设计制造及其自化机械设计制造及其自化 系 （院） 指导教师 摘摘 要要 发展草坪和地被植物是维护生态平衡、保护环境卫生、美化城市面貌、减少大 气污染、防止水土流失的有效措施之一，特别是针对我国北方的沙尘暴天气。同时 它们对减少城市里二次扬尘和减轻噪声污染也有较好的效果。而维持草坪的美观与 整齐就要对其进行定期修剪。修剪的过程要靠剪草机来完成。 本文对割草机驱动装置、传动装置、切割装置等具体装置做了详细介绍，并且 重点计算确定了传动系统中齿轮和轴等的基本尺寸，对
2、各个标准零件、非标准零件 的选取也做了相应的计算。本文设计的割草机适于家庭庭院及私人花园等小型草地 使用，修剪草坪时保证了节省原料、造价低、污染小，符合环保要求。 关键词： 割草机；驱动装置设计；传动装置设计；动刀装置设计；强度计算 ABSTRACT Development of lawns and ground cover is to maintain the ecological balance, protecting the environment and health, beautify the city appearance, to reduce atmospheric pollut
3、ion, one of the effective measures to prevent soil erosion, especially for the sandstorm weather in the north of China. Them at the same time to reduce the secondary dust and reduce the noise pollution in city also has a better effect. And to maintain the lawn is beautiful and neat is to be trimmed
4、regularly. Pruning process is to be completed by lawnmower. In this paper, the lawn mower driving device, transmission device, cutting device, such as the specific device is made in detail, and the key drive system of the calculate and determine the basic size of gear and shaft, the selection of various standard parts, non-standard parts and do the corresponding calculations. In this paper, design of lawn mower is suitable for home ga
