农业机械学报2024，Vol.55Issue(1)：65-75,163,12.DOI:10.6041/j.issn.1000-1298.2024.01.006
多重扰动清种式大蒜单粒取种排种器设计与试验
Design and Experiment of Multi-disturbance Cleaning and Single-seed Sowing Device for Garlic
摘要
Abstract
In response to the common issues of seed leakage and reseeding during the seed-picking process of a spoon-chain garlic seeder,a novel multi-disturbance cleaning and single-seed sowing device was designed.The sowing device collected multiple garlic seeds during the seed-picking process and underwent multiple disturbances to ensure that only one seed remains in the sowing spoon.Focusing on Jinxiang garlic seeds and elucidating the working principle of the sowing device,the optimal parameters of the sowing device and the installation position of multi-disturbance device were determined.Through DEM-MBD coupled simulation experiments,the influence of tilt angle and scoop speed on the success rate of seed filling and the impact of groove shape on the single-seed extraction rate were analyzed.A three-factor three-level orthogonal experiment was performed by using the Box-Behnken central composite design method,with the slope of the second arc-shaped prominent part,inclination angle,and spoon linear speed as experimental factors,and the single-seed qualification rate and seed leakage rate as evaluation criteria.Design-Expert 8.0.6 data analysis software was employed to analyze the effects of each factor on the single-seed sowing rate and seed leakage rate and optimize the experimental factors to determine the optimal structural parameters of the multi-disturbance device.A validation experiment was conducted using a test rig to verify the simulation results.Under the conditions of an inclination angle of 15° and a spoon linear speed of 0.07 m/s,the multi-disturbance device was adjusted to adapt to different levels of garlic seeds by adjusting the distance between the device and the top of the sowing spoon groove.The success rates of single-seed sowing were 92.2％,97.2％,and 95.6％for Grade Ⅰ,Grade Ⅱ,and Grade Ⅲ garlic seeds,respectively,demonstrating excellent sowing performance.关键词
大蒜播种机/多重扰动/单粒取种/排种器/DEM-MBDKey words
garlic planter/multiple disturbances/single-seed sowing/seeder/DEM-MBD分类
农业科技引用本文复制引用
侯加林,方立志,张海阔,周凯,李天华,李玉华..多重扰动清种式大蒜单粒取种排种器设计与试验[J].农业机械学报,2024,55(1):65-75,163,12.基金项目
财政部和农业农村部:国家现代农业产业技术体系项目(CARS-24-D-01)、山东省现代农业产业技术体系蔬菜产业创新团队项目(SDAIT-05-11)和中国博士后科学基金面上项目(2019M662410) （CARS-24-D-01）
