农业机械学报2025，Vol.56Issue(5)：268-278,424,12.DOI:10.6041/j.issn.1000-1298.2025.05.025
带式大豆高速导种装置籽粒姿态矫正元件设计与试验
Design and Experiment of Seed Orientation Correction Element for High-speed Belt-type Soybean Seeding Device
摘要
Abstract
Aiming to address the issue of unstable seed orientation and inconsistent seed positions within the single-seed chamber of a belt-type seed delivery device during high-speed seeding(13～16 km/h),a seed orientation correction element for the belt-type seed delivery device was designed.This element consisted of five parallel transverse ridges,each with a height of 1 num,and was made from nitrile rubber.When soybeans came into contact with the first ridge,they were adjusted so that their long axis was oriented perpendicularly to the direction of the seed belt movement,thereby ensuring stable seed delivery.By analyzing the state of the seeds during the collision deformation phase and the collision recovery phase,the theoretical two-dimensional seed delivery position within the correction zone was clearly defined.Using the EDEM discrete element simulation software,a simulation experiment was conducted to determine the optimal height of the correction ridges.The qualification rate of seed inclination and the qualification rate of seed displacement were used as evaluation indicators.Through single-factor experiments,the displacement trajectory of the seeds from the seed-limiting to the correction phase was analyzed,clarifying the effect of the correction ridge height on the lateral movement of the seeds.The results showed that with a ridge height of 1.00 mm,the average qualification rate of seed inclination was 95.7％,and the average qualification rate of seed displacement was 98.2％.High-speed camera technology was used to conduct single-factor comparative experiments,with the orientation variability coefficient and plant spacing variation coefficient used as indicators to compare the correction effects.The comparative experiments demonstrated that the belt-type seed delivery device equipped with the correction element had lower orientation variability coefficients and plant spacing variation coefficients than the device without the correction element.With the correction element featuring a ridge height of 1 mm,the average orientation variability coefficient was 16.45％,and the average plant spacing variation coefficient was 12.78％,meeting the requirements for high-speed precision seeding operations.关键词
大豆/高速精量播种机/带式导种装置/籽粒姿态矫正/定向导种Key words
soybean/high-speed precision planter/belt-type seed guide device/seed correction/directional seed guidance分类
农业工程引用本文复制引用
衣淑娟,王光宇,李衣菲,王淞,李帅霏,卫睿勇..带式大豆高速导种装置籽粒姿态矫正元件设计与试验[J].农业机械学报,2025,56(5):268-278,424,12.基金项目
黑龙江省重点研发计划重大项目(2022ZX05B02)、黑龙江省自然科学基金联合引导项目(LH2024E103)和黑龙江八一农垦大学研究生创新科研项目(YJSCX2024-Y12、YJSCX2024-Z02、YJSCX2024-Y13) （2022ZX05B02）
