农业机械学报2026，Vol.57Issue(16)：73-86,14.DOI:10.6041/j.issn.1000-1298.2026.16.007
基于压力触发式油茶果振动采摘装置设计与试验
Design and Experiment of Pressure-triggered Vibration Harvesting Device for Camellia oleifera Fruits
摘要
Abstract
Aiming at the problems of poor equipment adaptability,low operational efficiency and easy flower bud damage due to the overlap of picking period and flowering stage in the mechanized harvesting of Camellia oleifera in hilly and mountainous areas,a pressure-triggered vibratory harvesting device for Camellia oleifera was designed.Based on the parameters obtained from biomechanical measurements,a composite vibration mathematical model of the Camellia oleifera'fruit-pedicle-branch'system was constructed,which clarified the first three natural frequencies of the system and the fruit-pedicle separation force mechanism,thus providing theoretical support for determining key operating parameters such as vibration frequency.The FSR400 flexible thin-film pressure sensor and the stepper motor-based continuously variable frequency system were integrated,a retractable multi-excitation-head structural design was adopted,and a'contact-triggered,vibration-on-demand'control strategy was proposed to realize closed-loop adaptive operation with real-time contact state perception,which effectively reduced invalid energy consumption and non-target damage.Through ADAMS rigid-flexible coupling simulation and field experiments combined with Design-Expert response surface optimization,the optimal operating parameters of the device were determined:at a working frequency of 6.89 Hz,an amplitude of 40.97 mm and an excitation position of 0.25 L,the fruit drop rate reached 90.043％and the flower bud drop rate was only 8.171％.The lightweight and portable design of the device was suitable for the complex working environment in hilly and mountainous areas,and taking into account the picking efficiency.It can provide a technical scheme and equipment support for the efficient mechanized harvesting of Camellia oleifera fruit in hilly and mountainous areas.关键词
油茶果/振动采摘/结构设计/压力传感器/参数优化Key words
Camellia oleifera fruit/vibration picking/structural design/pressure sensor/parameter optimization分类
农业科技引用本文复制引用
伍德林,黄可玥,刘英豪,陈丰,李功磊,王荣炎..基于压力触发式油茶果振动采摘装置设计与试验[J].农业机械学报,2026,57(16):73-86,14.基金项目
安徽省高校协同创新项目(GXXT-2023-111)和安徽省自然科学基金项目(2208085ME132) （GXXT-2023-111）
