手推式除草机（无引擎）设计 说明书（论文）+任务书+开题报告+CAD图纸+Solidworks三维图纸

Design of hand-push weeding machine

ABSTRACT

With the growth of economy, the development of garden lawn and the increase of green environmental protection consciousness, the original power weeding machine has the problems of noise, vibration and high cost in the garden. This design is a hand-push mute lawn weeding machine, which can solve noise pollution, vibration, and reduce the cost of use, which is suitable for lawn mowing.

Based on the relevant knowledge and theory of mechanical design, mechanical principle and Solidworks 3D drawing software, the control handle is located at the right end of the push rod, the upper end of the front feed wheel is fixed with a protective cover, and the inner side of the shield is provided with a driving device, the muffler is located above the driving device, the right end of the drive device is connected with a heat dissipation fan, the lower part of the drive rod is provided with a collection box, and the left end is fixed with a rotating head, The lower end of the rotary head is provided with a cutting disc.

This design uses CAD and Solidworks 3D drawing software to model the designed parts model, then all the parts models are assembled and designed. Finally, the motion simulation of the assembly model is carried out.

Keywords: Hand push type; weeding machine, lawn mower;Solidworks；CAD

目  录

1引言

1.1设计背景及意义

1.2国内外发展现状

1.2.1国外发展现状

1.2.2国内发展现状

1.3存在问题以及发展趋势

1.3.1存在问题

1.3.2发展趋势

1.4研究内容及章节安排

2总体方案设计

2.1工作原理

2.2传动机构

2.3断草方式选择

2.4用组合法实现增速

2.5刀架高度调节机构

2.6功能及创新

3传动零件的设计

3.1齿轮机构设计

3.2链轮机构设计

3.3轴的设计

3.4轴承校核

4刀具的设计

4.1 刀具的概述

4.2刀具的运动分析

4.3刀具的结构尺寸及相关参数

5端面齿轮及拨杆的设计

5.1端面齿轮和拨杆的概述

5.2 端面齿轮和拨杆的运动分析

6 SolidWorks软件建模装配

结论

谢辞

参考文献