A0总装配
小麦精密播种机设计
摘要
自人类文明诞生以来，粮食是人类生存不可或缺的一环，小麦则是粮食类作物中不能缺少的一类。我国东北三江平原是小麦主要的种植区域之一，但小麦种植不仅局限于东北，淮河南北，都有小麦种植的影子。小麦种植分布面积极广，因其产量高的优点也成为许多农村种植的首眩根据农业技术要求中的规范指南，播种是小麦种植的重要环节，传统机械化播种只是简单的将种子放入土壤。但科学化的种植方式日益精进，人们对农业技术上的需求也日益强烈。传统机械播种无法满足人们的基本生产需求，小麦精密化播种也就成为历史潮流的必然趋势。
本研究以建构主义作为基本的理论基础，而设计的一台小麦精密播种机。精密化播种的重点就在于精密，小麦植株之间要保持一定的间距，保证小麦幼苗能充分利用空间。保持一定间距的同时也要保证小麦种子入土深度的一致性，种深的一致可以保证幼苗高度的一致性。间距与种深就是精密化播种的重点，协调间距与种深的关系对小麦的稳定和高效生产至关重要。
关键词：小麦；精密播种；间距；种深
Abstract
Since the birth of human civilization, food is an indispensable part of human survival, andwheat is an indispensable part of food crops. The Sanjiang Plain in Northeast China is one of the mainwheat planting areas, butwheat planting is not only limited to the northeast, North and south of Huaihe River, but also has the shadow ofwheat planting. Thewheat planting area isverywide, because of its highyield, it has become the first choice for many rural planting. According to the standard guide in agricultural technical requirements, sowing is an important part ofwheat planting,while traditional Mechanized Sowing simply puts seeds into the soil. But the scientific planting method is more and more advanced, and people's demand for agricultural technology is also increasingly strong. Traditional mechanical sowing can not meet people's basic production needs, andwheat precision sowing has become an inevitable trend in history.
Based on the theory of constructivism, awheat precision seederwas designed. The key point of precision sowing is precision. A certain distance should be kept betweenwheat plants to ensure thatwheat seedlings can make full use of space. At the same time, it is necessary to keep a certain distance to ensure the consistency of the depth ofwheat seeds into the soil. The consistency of seed depth can ensure the consistency of seedling height. Spacing and seed depth are the key points of precision sowing. It isvery important to coordinate the relationship between spacing and seed depth for stable and efficient production ofwheat.
Keywords: Wheat; precision sowing; spacing; seed depth
目录
摘要3
Abstract 4
引言6
1、总体方案的设计8
1.1整机机构方案9
1.1.1三维视图9
1.1.2工作原理9
1.2主要技术参数10
2、排种器11
2.1排种器的技术要求及选择12
2.2排种器的结构设计12
2.3排种器的技术参数13
3、开沟器14
3.1开沟器的设计要求14
3.2开沟器的设计15
3.2.1开沟器的确定15
4、其他工作部件和机构16
4.1输种管的设计16
4.2地轮的设计17
4.3地轮轴的校核17
4.4镇压轮的设计18
4.5种子箱的设计18
4.6机架的设计19
5、传动机构的设计20
5.1传动机构的选择20
5.2传动比的确定及齿轮参数的确定21
5.2.1传动比的计算21
5.2.2传动机构中各齿轮尺寸的确定21
结论23
参考文献24
后记25
传动轴A2
行走轮A3
开沟器A1
链轮A3
链条A3
排种器A2
下连接杆A3
轴承端盖A4
轴承座A4
1字数
3工作原理
4设计所包含文件
2说明书前三页
