李沐桐,李天宇,官晓东,赵广阔,周福君.旱地回转扎穴式播种器设计与试验[J].农业机械学报,2018,49(2):48-57.
LI Mutong,LI Tianyu,GUAN Xiaodong,ZHAO Guangkuo,ZHOU Fujun.Design and Experiment of Rotary Hole Seeder for Dryland[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(2):48-57.
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旱地回转扎穴式播种器设计与试验   [下载全文]
Design and Experiment of Rotary Hole Seeder for Dryland   [Download Pdf][in English]
投稿时间:2017-09-01  
DOI:10.6041/j.issn.1000-1298.2018.02.007
中文关键词:  播种器  回转扎穴式  设计  优化  试验
基金项目:国家重点研发计划项目(2016YFD0701905)和黑龙江省应用技术研究与开发计划重大项目(GA16B301)
作者单位
李沐桐 东北农业大学 
李天宇 东北农业大学 
官晓东 东北农业大学 
赵广阔 东北农业大学 
周福君 东北农业大学 
中文摘要:为进一步提高穴播质量,针对排播过程中触土部件的壅土、堵塞等问题,结合精密播种技术要求并运用四杆运动学原理,提出一种旱地回转扎穴式播种方式及其配套机具。通过建立扎穴结构数学模型并采用VB可视化编程平台选取了核心运动参数,同时对关键部件型孔凹轮和回位压簧进行了优化设计。以玉米为播种对象,以主轴转速和压簧线径为试验因素,以合格指数和变异系数为试验指标进行二次正交旋转组合试验,采用Design-Expert 10.0.3软件对结果进行数据处理,选取最优工作参数。通过田间验证试验测得,在主轴转速为27r/min,压簧线径为1.5mm的工况下,播种器作业合格指数为92.1%,变异系数为2.5%,堵塞率为0。结果表明,该机构在满足精密播种作业技术要求的同时,进一步改善了入土可靠性和粒距均匀性。
LI Mutong  LI Tianyu  GUAN Xiaodong  ZHAO Guangkuo  ZHOU Fujun
Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University and Northeast Agricultural University
Key Words:seeder  rotary pricking hole type  design  optimization  experiment
Abstract:In order to further improve the quality of hole metering,aiming at hilling and blocking problems of touching parts soil sowing in the process, combined with the requirements of precision seeding technology and the use of four bar kinematic principle, a kind of dry type rotary pricking hole seeding method was put forward, its variety can be applied to different working environments with diverse mode. Selecting the core motion parameters by establishing the mathematical model and the structure of tie points VB visual programming platform and the design of key components of the concave wheel and the return spring was optimized. The principal axis speed and the spring wire diameter were selected as experiment factors, with qualified index and coefficient of variation of test indexes as two orthogonal revolving combination test, the data processing was done by using Design-Expert 10.0.3 software and selecting the optimal working parameters. Through field verification test, under the condition that the spindle speed was 27r/min and the line diameter of the spring was 1.5mm, the operation qualification index of the seeder was 92.1%, the variation coefficient was 2.5%, and the blockage rate was 0. The results showed that the mechanism can meet the requirements of operation technology of precision seeding at the same time, and further improve the reliability and uniformity of soil particle spacing. The optimization of pricking hole seeder for dry rotary provided a theoretical basis and technical reference for improvement.

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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