目录 摘要I Abstract II 引言1 1绪论2 1.1课题研究背景2 1.2国内外发展现状3 1.2.1国外发展现状3 1.2.2国内发展现状4 1.3割草机的发展趋势5 1.4本章小结6 2手推式割草机的总体设计和分析7 2.1割草机的基本要求7 2.2割草机的分类7 2.2.1往复式割草机7 2.2.2拖拉机悬挂式割草机8 2.2.3旋转式割草机8 2.3整体方案的设计9 2.3.1方案的选择9 2.3.2方案的确定10 2.4手推式割草机的结构特点11 2.4本章小结11 3割草机主要零部件的设计及分析12 3.1行走装置的设计12 3.2扶手部件的设计13 3.3切割刀片的设计15 3.4主电机的设计选择17 3.5减速器齿轮设计18 3.5.1齿轮设计的准则18 3.5.2齿轮材料的选择18 3.5.3齿轮精度的选择20 3.5.4齿根弯曲强度计算20 3.6行走轮轴承的选择及计算25 3.6.1轴承类型的选择25 3.6.2轴承的校核计算26 3.7本章小结27 4手推式割草机三维模型的建立28 结论34 参考文献36 附录1割草机部件静应力分析38 致谢39 摘要 随着经济的增长，国家和人民越来越注重环境，近年来，我们的绿色区域有了很大的改善，草坪的种植也是市场上各种割草机的一部分。本次设计主要是研究手推形式的除草机来做研究的课题，并对一部分进行了设计改进。第一部分主要针对草坪割草机的环境，介绍了本文的基本背景和国内外草坪割草机的基本情况，分析了草坪割草机的基本分类，如轮式割草机、悬挂式割草机等，分析了草坪割草机设备未来的基本趋势，如功能多样性、低成本、全自动化等。接着是第二部分的主要工作是分析消化设备的基本需求，使用市场上相对通用的基本设计进行设计分析，确定本文设计的割草机方案，并根据常见的解决方案分析其主要部件和工作流程。第三章的主要工作是对整个机器中的几个主要零部件进行设计分析，包括走行器、扶手、电气机构、轴、切割刀片和减速机的设计计算。第四部分是简单说明了solidworks的介绍，其中包括了该软件的基本建模方法:自上而下建模方法和自下而上设计方法，并介绍了各个割草机模型的功能及其最常用的基本模型，包括电气部件、抽壳部件、车轮部件、扶手部件、割草机、管路、发动机盖部件以及整体装配。第五章主要针对割草机的日常使用和注意事项，主要是防止用户未经授权使用和操纵设备和不确定性。 关键字：手推式；旋转式割草机；电动 Abstract With the eco
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n the form of ha
nd push, a
nd some of it has bee
n improved. The first part mai
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ntroduces the basic backgrou
nd of this paper a
nd the basic situatio
n of law
n mowers at home a
nd abroad, a
nalyzes the basic categories of law
n mowers, such as wheeled mowers a
nd ha
ngi
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nd a
nalyzes the basic tre
nds of law
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n the future, such as fu
nctio
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n, the mai
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nalyze the basic requireme
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n the market to desig
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nalyze, determi
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nalyze several mai
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nd calculatio
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ni
ng gear, ha
ndrail, electrical mecha
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ntroductio
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nd bottom-up desig
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nd i
ntroduces the fu
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nts, shell parts, wheel parts, ha
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nipulati
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