| 手自一体式山核桃采摘机的设计与试验 |
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| 引用本文： | 李赞松,曹成茂,伍德林,张建宇.手自一体式山核桃采摘机的设计与试验[J].浙江农业学报,2021,33(7):1309. |
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| 作者姓名： | 李赞松 曹成茂 伍德林 张建宇 |
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| 作者单位： | 1.铜陵学院 机械工程学院,工程液压机器人安徽普通高校重点实验室,安徽 铜陵 2440612.安徽农业大学 工学院,安徽 合肥 230036 |
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| 基金项目： | 国家自然科学基金(51475002);国家重点研发计划(2016YFD0702105) |
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| 摘 要： | 为提高山核桃采摘效率,降低采摘成本,针对目前我国山核桃高空作业机械化程度低等特点,设计并研制了一款手自一体式山核桃采摘机。文章阐述了该机关键部件的设计,并对偏心轮机构进行数学建模与分析计算。应用ANSYS对果树进行自由模态响应分析,初步确定山核桃树采摘的频率范围为7~20 Hz。根据山核桃采摘试验,结果表明:振动频率对果树的采摘率具有显著影响(P=0.05),果实采摘率随振动频率的增大而增大,当振动频率为22 Hz时,采摘率为95.1%;为了提高采摘率且尽可能减小芽枝和果树的损伤,建议控制采收频率为16~18 Hz,此时果实的平均采摘率为83.9%~88.0%。未采摘的果实通过人工或机械二次采摘。
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| 关 键 词： | 手自一体式 山核桃 偏心轮机构 振动频率 采摘率 |
| 收稿时间： | 2020-06-28 |
Design and experiment of hand-operated self-integrated picking machine for Carya cathayensis |
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| LI Zansong,CAO Chengmao,WU Delin,ZHANG Jianyu.Design and experiment of hand-operated self-integrated picking machine for Carya cathayensis[J].Acta Agriculturae Zhejiangensis,2021,33(7):1309. |
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| Authors: | LI Zansong CAO Chengmao WU Delin ZHANG Jianyu |
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| Institution: | 1. College of Mechanical Engineering, Key Laboratory of Construction Hydraulic Robots of Anhui Higher Education Institutes, Tongling University,Tongling 244061, China
2. College of Engineering, Anhui Agricultural University, Hefei 230036, China |
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| Abstract: | In order to improve the efficiency of picking and reduce the cost of picking, a hand-operated self-integrated picking machine for Carya cathayensis was designed and developed according to the low degree of mechanization of pecan high-altitude operation in China. The design of the key parts of the machine was designed, and the mathematical modeling and analysis calculation of the eccentric mechanism was carried out. Based on the free model response analysis of the fruit tree with ANSYS, and the frequency range of picking pecan trees was preliminarily determined to be 7-20 Hz. According to the picking test of pecan, the results showed that: vibration frequency had a significant effect on the picking rate of fruit trees (P=0.05). The picking rate of fruit increased with the increase of vibration frequency. When the vibration frequency was 22 Hz, the picking rate was 95.1%. In order to improve the picking rate and minimize the damage to buds and fruit trees, it is suggested to control the harvesting frequency at 16-18 Hz, and the average picking rate of fruits at this time was about 83.9%-88.0%.The unpicked fruit was repicked manually or mechanically. |
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| Keywords: | hand-operated self-integration Carya cathayensis eccentric mechanism vibration frequency picking rate |
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