新型栽苗器的结构设计 摘要 本课题属于机械创新设计，新型栽苗器属于农业种植机械，符合国家大力倡导的科学种植、降低种苗劳动强度的创新理念。本产品的设计基于CAD,Proe数字化设计方法，充分发挥学生创新思维以及创新理论和机械设计知识的有机结合。本设计以人力为动力来源实现节能，采用脚踏脚踏板给力通过破土爪破土深入地面，拉手驱动拉沟机构拉动连接圈，连接圈向上滑动，下拉沟驱动破土机构，从而达到破土工作完成。该机器结构简单、操作方便、环保节能，能快速种植，具有良好的市场推广前景。 关键词：栽苗器、脚踏机构、拉手机构、破土机构。 Abstract This subject belo
ngs to the i
n
novative desig
n of machi
nery. The
new seedli
ng pla
nter belo
ngs to the agricultural pla
nti
ng machi
nery. It co
nforms to the i
n
novative idea of scie
ntific pla
nti
ng a
nd reduci
ng the labor i
nte
nsity of seedli
ng vigorously advocated by the state. The desig
n of this product is based o
n CAD a
nd Proe digital desig
n method, givi
ng full play to stude
nts'i
n
novative thi
nki
ng a
nd the orga
nic combi
natio
n of i
n
novative theory a
nd mecha
nical desig
n k
nowledge. This desig
n uses ma
npower as power source to achieve e
nergy savi
ng. Foot pedal is used to force the grou
nd through the earth breaki
ng claw to the grou
nd. The pulli
ng ha
ndle drives the pulli
ng groove mecha
nism to pull the co
n
necti
ng ri
ng, the co
n
necti
ng ri
ng slides upward, a
nd the pull-dow
n groove drives the soil breaki
ng mecha
nism, thereby achievi
ng the completio
n of the soil breaki
ng work. The machi
ne has the adva
ntages of simple structure, co
nve
nie
nt operatio
n, e
nviro
nme
ntal protectio
n a
nd e
nergy savi
ng, rapid pla
nti
ng, a
nd good market prospects. Key words seedli
ng pla
nter, pedal mecha
nism, pulli
ng mecha
nism, soil breaki
ng mecha
nism. 目录 摘要V 第一章选题背景2 1.1课题来源2 1.2课题意义2 1.3国内外的发展概况和存在的问题2 1.4设计理念3 1.5破土部件设计与分析4 第二章方案论证5 2.1方案一普通栽苗器5 2.2方案二改进栽苗器5 2.3方案三创新栽苗器6 第三章结构设计与工作原理8 3.1结构组成8 3.1.1脚踏机构8 3.1.2工具盒机构9 3.1.3破土机构9 3.2创新点10 第四章关键部件设计11 4.1破土爪机构基本运动原理11 4.2拉钩设计11 4.3破土爪设计12 4.3.1破土爪材料12 4.3.2破土爪结构12 第五章关键部件的建模设计14 5.1建立文件14 5.2建立筒体模型14 5.3破土爪建模16 5.4其他零部件的设计与绘制19 第六章结构尺寸和材料选择分析20 6.1结构尺寸分析20 6.2材料选择分析20 第七章整体机构装配20 结论21 参考文献22 附录23 致谢24