赵金辉,刘立晶,杨学军,杜佳伟,赵郑斌.苔麸播种机气流输送式排种系统设计与试验[J].农业机械学报,2018,49(s1):101-107.
ZHAO Jinhui,LIU Lijing,YANG Xuejun,DU Jiawei,ZHAO Zhengbin.Design and Experiment of Pneumatic Seeding System of Teff Seeder[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(s1):101-107.
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苔麸播种机气流输送式排种系统设计与试验   [下载全文]
Design and Experiment of Pneumatic Seeding System of Teff Seeder   [Download Pdf][in English]
投稿时间:2018-07-15  
DOI:10.6041/j.issn.1000-1298.2018.S0.014
中文关键词:  苔麸播种机  气流输送系统  排种器  设计  试验
基金项目:比尔及梅琳达·盖茨基金会项目(OPP1118825)
作者单位
赵金辉 中国农业机械化科学研究院 
刘立晶 现代农装科技股份有限公司
南方粮油作物协同创新中心 
杨学军 现代农装科技股份有限公司
南方粮油作物协同创新中心 
杜佳伟 中国农业机械化科学研究院 
赵郑斌 现代农装科技股份有限公司 
中文摘要:设计了一种苔麸播种机气流输送式排种系统,该系统主要由排种器、风送输种管、分配器和风机等关键部件组成。对排种器、风送输种管和分配器进行理论分析与设计,得到关键参数模型和理论值,完成风机选型,搭建了气流输送式排种系统试验平台。采用二次回归通用旋转组合设计试验,以风送输种管进口风速和播种量为影响因素,以总排种量稳定性变异系数和各行排种量一致性变异系数为响应指标,对气流输送式排种系统进行台架试验,运用Design-Expert软件对试验数据进行方差分析、响应面分析,得到最优工作参数组合:风速25.42m/s,播种量15kg/hm2。最优参数组合试验结果表明,各行排种量一致性变异系数4.96%,总排种量稳定性变系数0.98%,试验值与理论优化值相对误差小于4.2%,种子破损率0.12%,排种均匀性变异系数20.4%,满足标准和农艺要求。
ZHAO Jinhui  LIU Lijing  YANG Xuejun  DU Jiawei  ZHAO Zhengbin
Chinese Academy of Agricultural Mechanization Sciences,Modern Agricultural Equipment Co., Ltd.;Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China,Modern Agricultural Equipment Co., Ltd.;Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China,Chinese Academy of Agricultural Mechanization Sciences and Modern Agricultural Equipment Co., Ltd.
Key Words:teff seeder  pneumatic seeding system  seeder meter  design  experiment
Abstract:Teff is one of Ethiopia’s most important cereal crops. It is grown by about six million households on approximately 2.2 million hectares or 30% of the land area under cereal production. In Ethiopia, teff is mainly produced by smallholder farmers in a traditional way, and it is a very laborious process, both pre- and post-seeding. In order to solve the problem of Ethiopia teff mechanization seeding, a pneumatic seeding system of teff seeder was designed. The system mainly included seed-metering device, air delivery tube for seeds, distributor, fan and so on. The seed-metering device, air delivery tube for seeds, distributor was designed and analyzed, and the key parameters of pneumatic seeding system were got. The fan was selected by the key parameters, and the pneumatic seeding system experiment platform was set. The quadratic regression general rotation combination design was used for the experiment and the inlet wind speed of air delivery tube and seeding rate were taken as the influential factors. The stability variability coefficient of the full seeding quantity and the consistency variability coefficient of row seeding quantity were measured and analyzed. Through the analysis of variance and response surface analysis by Design-Expert software, the mathematical model was optimized and validated. The wind speed was 25.42m/s and seed rate was 15kg/hm2, which was optimal parameter combination. The results under the optimized experiment showed that the consistency variability coefficient of row seeding quantity was 4.96% and the stability variability coefficient of the full seeding quantity was 0.98%. The seed damaged rate was 0.12%, and seed uniformity coefficient of variation was 20.4%. The parameters can meet the standard and agronomy requirements.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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