小型家用悬刀式除草机结构设计(含CAD零件图装配图)(任务书,文献综述,开题报告,中期检查表,论文说明书8000字,CAD图4张)
摘 要
社会的高速发展使居民的生活水平大大提高，人们对物质的需求逐渐减少，越来越注重精神的享受，家庭式草坪成为大部分人的选择。草坪的修整养护繁琐困难，一款适合的除草机能解决这一麻烦。
本文设计了一款适合家庭式草坪使用的悬刀式除草机，除草机刀具通过轴承悬空固定在机架上进行除草作业。该设计主要由推杆、车架、电动机、锥齿轮机构、皮带轮机构和切割机构组成。切割机构由工作轴与悬刀组成，悬刀固定在工作轴下部。皮带轮一端固定在工作轴上部，另一端与锥齿轮同轴连接。当电动机转动时，会带动锥齿轮运转，通过皮带使工作轴转动进行除草工作。操作者通过手推来控制机器的速度以及改变方向进行作业，该设计对操作者要求低，装有安全防护罩，工作稳定、振幅小，是一款手推的悬刀式小型家用除草机。
关键词：手推；防护罩；除草机
Abstract
With the rapid development of society, the living standard of residents is greatly improved, people's demand for materials is gradually reduced, and more attention is paid to spiritual enjoyment. Family lawn has become the choice of most people. Lawn repair and maintenance is tedious and difficult, a suitable lawn mower can solve this problem.
In this paper, a hanging knife lawn mower suitable for family lawn is designed, The tool of the lawn mower is fastened to the frame through the bearing to carry out the weeding operation.which is mainly composed of push rod, frame, motor, bevel gear mechanism, pulley mechanism and cutting mechanism. The cutting mechanism is composed of a working shaft and a hanging knife, which is fixed at the lower part of the working shaft. One end of the pulley is fixed at the upper part of the working shaft and the other end is coaxial connected with the bevel gear. When the motor rotates, it will drive the bevel gear to run, and the working shaft will be rotated through the belt for weeding work. The operator works by hand to control the speed of the machine and change the direction of the machine. The design has low requirements for the operator, equipped with a safety shield, stable operation and small amplitude. A hand-pushed hanging knife type small household lawn mower.
Key words:keywords hand push; shield; lawn mower
滚刀式除草机
滚刀式除草机通过滚刀和底刀配合对0.3~0.8米的草进行切割。滚刀式除草机的工作效果高，适用于高尔夫球运动场的果岭、球道、和足球运动场等等需要完整草地的场所[7]。当滚刀式除草机要使草达到完美高度的时候，它的工作效率只有70%，这是由于除草机滚刀和底刀决定的，当滚刀和底刀之间的距离正常时它才能达到最好的工作效率。
目录
1 引言 1
1.1 除草机研究背景与意义 1
1.1.1除草机研究背景 1
1.1.2除草机研究意义 1
1.2 国内外除草机发展现状 2
1.2.1 国外除草机发展现状 2
1.2.2 国内除草机发展现状 2
2 小型家用除草机的方案设计 3
2.1 小型家用除草机方案选择 3
2.1.1 滚刀式除草机 3
2.1.2 悬刀式除草机 4
2.1.3 侧刀式除草机 5
2.2 小型家用除草机的系统组成 7
3 小型家用除草机的结构设计 8
3.1 电动机的选择 8
3.2 悬刀式除草机刀具的选择 8
3.2.1 悬刀式除草机刀具材料选择 8
3.2.2 悬刀式小型家用除草机刀具设计 9
3.2.3 悬刀式小型家用除草机刀具的运动分析 10
3.2.4 悬刀式小型家用除草机刀具的转速确定 11
3.3 传动部分的设计 12
3.3.1 皮带传动设计与校核 12
3.3.2 锥齿轮传动的设计与校核 15
4结论 18
谢辞 19
参考文献 20
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