| 摘要: |
| 针对目前移栽机通用性差,造价高,不利于推广应用等问题,设计一种由输送带喂入钵体苗并输送钵苗的移栽机,重点设计一种开沟植苗器.该开沟植苗器集扶苗、导苗和开沟功能于一体,主要由扶苗板、导苗通道和改进的靴型开沟器组成.扶苗板由2块薄板组合而成,可根据钵苗大小调整扶苗板位置、角度及长度,使处于最佳扶苗状态,保证钵苗竖直进入导苗通道;开沟器开出横截面近似V型沟壑,有利于钵苗竖直下落至沟壑时立正扎稳.在温室内进行移栽甘蓝和玉米的试验,结果表明:前进速度为0.254 m/s时,株距变异系数 <25%,移栽直立度合格率 >90%.该移栽机结构简单,移栽行距、株距可调节;对不同农作物钵苗具有一定的调节适应性. |
| 关键词: 移栽 扶苗 开沟 输送带 |
| DOI：10.11841/j.issn.1007-4333.2015.03.30 |
| 分类号: |
| 基金项目:国家科技支撑项目(2012BAF07B02); 国家自然科学基金项目(31101079); 中央高校基本科研业务费专项资金资助项目(2013XJ004) |
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| Design and experiments on a transplanter with belt feeding on block seedling |
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MA Zeng-hong, LI Nan, LI Tao, CHEN Zi-wen, YUAN Ting, LI Wei
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College of Engineering/Beijing Modern Agricultural Equipment Optimize Design Laboratory, China Agricultural University, Beijing 100083, China
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| Abstract: |
| For the problems of low generality and high manufacturing cost of the existing transplanters,a transplanter with belt feeding on and conveying block seedling was designed,especially the design of a furrowing-planting device.The device combines the functions of supporting seedling,guiding seedling and furrow opening,which is conducted by seedling-supporting plate,seedling-guiding channel and improved boot type furrow opener respectively.The position,angle and length of the seedling-supporting plate consisting of two thin plates can be adjusted according to the seedling size,so that the seedling-planting plate can be in its optimal working state to ensure transporting block seedling into seedling-guiding channel.The improved boot type furrow opener can produce approximate V-section gully,which guarantees that block seedling can be implanted into soil stably when falling vertically to the falling-seedling area.Experiments of transplanting cabbage and maize in Multi-span Greenhouse showed that the variation coefficient of plant spacing was less than 25% and qualified rate of upright degree was more than 90% when forward speed was 0.254m/s.The new transplanter has the advantages of simple structure,adjustability of row spacing and plant spacing,and applicability by adjustment according to different crops block seedlings. |
| Key words: transplant supporting seedling furrow opener conveyor belt |
