农业机械学报2025，Vol.56Issue(1)：245-253,9.DOI:10.6041/j.issn.1000-1298.2025.01.024
抓摇式设施冬枣摘熟留青振动采收装置参数优化与试验
Optimization and Test of Ripe-picking and Green-leaving Harvesting Parameters for Winter Jujube Catch-and-shake Vibration Device under Facility Orchard
摘要
Abstract
To achieve the ripe-picking and green-leaving harvesting of winter jujube,and considering the planting environment of facility jujube orchards,an adjustable-amplitude,variable-frequency test device with information sensing capabilities was designed to find the vibration harvesting parameters of winter jujube.The main factors affecting the shedding of jujube fruits under forced vibration were explored to obtain the maximum shedding rate of ripe fruits and the minimum shedding rate of green fruits.A fruit pendulum dynamics model was constructed to solve the model and determine that the main factors affecting fruit shedding were vibration frequency,vibration amplitude and vibration time.Then a shedding simulation test was carried out on a display push-pull meter to determine the shedding order of ripe fruits,green fruits and fruit stalks,which proved the feasibility of picking ripe fruits and leaving green ones.Finally,the mathematical model between the shedding rate and the harvesting parameters of the harvester was established.The harvesting parameters were optimized with the ripe fruit shedding rate and green fruit shedding rate as indicators,and the optimal parameter combination for picking ripe winter jujube and leaving green jujube was obtained as follows:the shedding rate of ripe fruit was 70.08％,and the shedding rate of green fruit was 11.97％when the vibration frequency was 12.66 Hz,the vibration amplitude was 15.02 mm,and the vibration time was 3.98 s.The optimization results were verified by field tests,and the test results were close to the optimized values.关键词
设施枣园/冬枣/摘熟留青/抓摇式振动采收装置/参数优化Key words
facility jujube orchards/winter jujube/ripe-picking and green-leaving/catch-and-shake vibration harvesting device/parameter optimization分类
农业科技引用本文复制引用
郑洲洲,胡耀华,赵鹏飞,董建鑫,黄玉祥..抓摇式设施冬枣摘熟留青振动采收装置参数优化与试验[J].农业机械学报,2025,56(1):245-253,9.基金项目
国家重点研发计划项目(2023YFD2000401-2)和国家自然科学基金项目(32372009) （2023YFD2000401-2）
