机械5

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 Si
nce the birth of huma
n civilizatio
n, food is a
n i
ndispe
nsable part of huma
n survival, a
ndwheat is a
n i
ndispe
nsable part of food crops. The Sa
njia
ng Plai
n i
n Northeast Chi
na is o
ne of the mai
nwheat pla
nti
ng areas, butwheat pla
nti
ng is
not o
nly limited to the
northeast, North a
nd south of Huaihe River, but also has the shadow ofwheat pla
nti
ng. Thewheat pla
nti
ng area isverywide, because of its highyield, it has become the first choice for ma
ny rural pla
nti
ng. Accordi
ng to the sta
ndard guide i
n agricultural tech
nical requireme
nts, sowi
ng is a
n importa
nt part ofwheat pla
nti
ng,while traditio
nal Mecha
nized Sowi
ng simply puts seeds i
nto the soil. But the scie
ntific pla
nti
ng method is more a
nd more adva
nced, a
nd people's dema
nd for agricultural tech
nology is also i
ncreasi
ngly stro
ng. Traditio
nal mecha
nical sowi
ng ca
n
not meet people's basic productio
n
needs, a
ndwheat precisio
n sowi
ng has become a
n i
nevitable tre
nd i
n history. Based o
n the theory of co
nstructivism, awheat precisio
n seederwas desig
ned. The key poi
nt of precisio
n sowi
ng is precisio
n. A certai
n dista
nce should be kept betwee
nwheat pla
nts to e
nsure thatwheat seedli
ngs ca
n make full use of space. At the same time, it is
necessary to keep a certai
n dista
nce to e
nsure the co
nsiste
ncy of the depth ofwheat seeds i
nto the soil. The co
nsiste
ncy of seed depth ca
n e
nsure the co
nsiste
ncy of seedli
ng height. Spaci
ng a
nd seed depth are the key poi
nts of precisio
n sowi
ng. It isvery importa
nt to coordi
nate the relatio
nship betwee
n spaci
ng a
nd seed depth for stable a
nd efficie
nt productio
n ofwheat. Keywords: Wheat; precisio
n sowi
ng; spaci
ng; 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