Design and experiment of seed furrow cleaning device based on throwing and sliding for no-till maize seeding  

作　　者：Panpan Yuan Hongwen Li Caiyun Lu Qingjie Wang Jin He Shenghai Huang Dandan Cui 

机构地区：[1]College of Engineering,China Agricultural University,Beijing 100083,China [2]College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Urumqi 830052,China [3]Key Laboratory of Agricultural Equipment for Conservation Tillage,Ministry of Agricultural and Rural Affairs,Beijing 100083,China

出　　处：《International Journal of Agricultural and Biological Engineering》2022年第4期95-102,共8页国际农业与生物工程学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.52165039);Xinjiang Agricultural Machinery R&D,Manufacturing,Promotion,and Application Integration Project(Grant No.YTHSD2022-14);China Agriculture Research System of MOF and MARA(Grant No.CARS-03);Xinjiang Key Laboratory of Intelligent Agricultural Equipment.Gratitude should be expressed to all the members of Conservation Tillage Research Centre.

摘　　要：In order to solve the serious problems of seeds are covered by residual film and overhead by straw during no-till seeding,a seed furrow cleaning device for no-till maize seeding was developed,which adopted a collaborative cleaning method of rotating spring teeth and curved sliding shovel.The movement process and motion trajectory of throwing residual film and straw were constructed.The maximum distance of throwing to one side in horizontal and maximum height in vertical were obtained.The motion trajectory of adjacent spring teeth was analyzed by Matlab,the motion trajectories of adjacent spring teeth at different speeds of 120 r/min,150 r/min and 180 r/min were achieved,the theoretical analysis results showed that the area of omitted area decreased with the increase of rotation speed.Based on theoretical and simulation analysis of critical parameters,the forward speed of machine,rotation speed of spring teeth,and dip angle between spring teeth and rotary disc were selected as the influencing factor.Straw cleaning rate(SCR)and residual film cleaning rate(RFCR)were selected as the response values for three factors and three levels of orthogonal experiment design.The optimal combination of the selected parameters was obtained,and the field test verification was also conducted.The results showed that the rotation speed of spring teeth,forward speed and dip angle of spring teeth significantly affect SCR and RFCR were in decreasing order.The field test results indicated that when forward speed was 6 km/h,rotation speed of spring teeth was 180 r/min and dip angle of spring teeth was 40°,SCR and RFCR were 88.27%and 84.31%,respectively.This study provides a reference for the development of no-till seeder in Xinjiang and the northwestern regions of China.

关 键 词：maize conservation tillage no-till seeding seed furrow cleaning STRAW residual film 

分 类 号：S513[农业科学—作物学]