摘要
针对嫁接用苗个体差异大、把持定位难、把持易损伤等问题,提出了一种力定位气囊把持手的设计方案,以实现嫁接用苗的柔性把持。气囊把持手以硅胶为材料,通过进气后气室的膨胀变形推动夹持翅绕中心旋转,与持苗圆弧一起实现嫁接用苗的夹持。在对气囊把持手完成初步设计的基础上,通过仿真分析确定合适的气室距离和进气压力。为了检验气囊把持手对嫁接用苗的夹持效果,以水平拔出力和垂直拔出力为目标函数,对气囊把持手进行性能试验。试验研究结果表明:当力定位气囊把持手作业压力为0.2MPa时,针对苗径为1.5~3.5mm的嫁接用苗,气囊把持手的垂直拔出力可达到1.0~2.5N,水平拔出力可达到1.0~2.0N。试验结果可为进一步研究上苗定位夹持机构提供参考。
To solve the problems of large individual difference and the difficulties in holding and positioning seedlings which are easy to be injured,this essay proposed a design scheme of force positioning gasbag gripper whose material was silicone rubber to accomplish flexible holding grafting seedlings.When the gas was admitted,the chambers expanded and pushed out the clamping wings to rotate around the center.The grafting seedling was clamped with the rotated clamping wings and the clamping arc of seedlings.On the basis of the preliminary design of the gasbag gripper,the appropriate parameters of distance from gas chamber to symmetry axis of gasbag and input pressure were further confirmed by simulation analysis.To test the effect of holding grafting seedling with gasbag gripper,the performance test of gasbag gripper whose objective function was horizontal and vertical pull out force was conducted.The results showed that,when the operation pressure of the force positioning gasbag gripper was 0.2 MPa,for grafting seedlings with the diameter between 1.5-3.5 mm,the horizontal pull out force of gasbag gripper could reach 1.0-2.0N,and the vertical pull out force of gasbag gripper could reach 1.0-2.5N.The results will provide reference for further research on the positioning and clamping mechanism of feeding seedlings.
作者
周泽坤
谢忠坚
初麒
杨艳丽
欧杨
辜松
Zhou Zekun;Xie Zhongjian;Chu Qi;Yang Yanli;Ou Yang;Gu Song(College of Engineering,South China Agricultural University,Guangzhou 510642,China;Guangzhou SKY Mechanical&Electrical Co,Ltd.,Guangzhou 510642,China)
出处
《农机化研究》
北大核心
2023年第5期191-195,共5页
Journal of Agricultural Mechanization Research
基金
广东省重点领域研发计划项目(2019B020222004)
广东省现代农业产业共性关键技术研发创新团队建设项目(2020KJ131)。
关键词
嫁接用苗
上苗
定位
气囊把持手
grafting seedling
feed seedling
positioning
gasbag gripper
