大蒜种植机械设计.pdf

、。劳动强度大,种植质量差,急需代替人工的大蒜种植机械,:,为大蒜种植机械的研制提供了理论基础. 蒜瓣形状特殊,精密取种困难,本文研究的大蒜种植机械设计了勺链式捧种器。通过对蒜瓣形状特征的统计研究,设计了一种取蒜勺,与排种器结构特点进行取种、稳种、清种、捧种四个阶段的有机结合,试验表明使勺链式捧种器的精密取种率达到90%. 为解决蒜瓣种植农艺要求中蒜尖朝上直立种植的要求,:首先对勺链式捧种器捧出的蒜瓣正位;然后采用同步式穴播的方法,%,计算了蒜瓣垂直插入直立投种机构种植斗的运动轨迹和它在土壤中形成种穴的穴距、穴宽、截面积等。以农艺要求穴距、穴宽、穴深等为约束, 使用Maflab编程优化计算了蒜瓣垂直插入直立投种机构重要结构参数旋转半径和穴深的最佳值为165伽和40mm;以此为基础优化设计计算了反转驱动机构的齿轮齿数和动力传动机构的链轮齿数;总结了影响机器作业速度的三点原因,并由蒜瓣下落距离与作业速度的关系得出,. 对整机和主要部件进行机械设计,绘制了总装图、∞ole建立了整机模型并进行了运动仿真,仿真结果验证了种植斗形成种穴轨迹、反转驱动机构、整机传动系统均按期望正确运行. 通过以上工作内容,完成了大蒜种植机械设计阶段的工作. 关键词:大蒜,种植,机械 AD或ract Garlic mechanization planting is oile oftheproblems tosolvein thegarlicproduction line of OUT AreaofPlantinggafIic,or yield and amount ofexport,alina is inthe thelocalgarlicplanting ofptcselatcondition inthegarlicag删ture is thatfarmerplants garlicmanually,consuming alotlaboring strength,but plantquality isbad,and thegarlicplanting machine isneeded urgently toreplace athome and abroad there arc notgarlic planting machines that alesuitableforChina'splant mode andplant thegarlic effectivecun' garlicplanting machine which this textresearched use harvests180 tFactorstoprovidelmOt/Ve,m carny Ontheprecigcgarlics∞Wing forsixlinesin C3VCS inthemeantime. Two hardImt tocracks:takeandplant order tosolvethem,garllcplanting machine this text referedtodesign andthedw{∞for dropping garlic clvoein erect positio札,and this textlaypoint in thedesignand calculationof 3the rateof totakegarlic cloveprecisly attain90%above bytaking spoon love On trialresearch,then work parameter ofcalculationand structure design of thespoon&chain type seed sowing mechanism w∞ complet