Optimization Design and Experiment of Non-circular Gear - Linkage Combination Type Transplanting Mechanism of Rice Pot Seedling on Film

被引:0
作者
Xin, Liang [1 ]
Wang, Mingcheng [1 ]
Zhang, Hao [1 ]
Sun, Guoyu [1 ]
Wang, Hang [1 ]
Zhuang, Zhiyuan [1 ]
机构
[1] College of Engineering, Northeast Agricultural University, Harbin
来源
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2024年 / 55卷 / 08期
关键词
gear — linkage combined mechanism; non-circular planetary wheel system; optimization design; rice pot seedling transplanting on film;
D O I
10.6041/j.issn.1000-1298.2024.08.005
中图分类号
学科分类号
摘要
To achieve the mechanized integrated transplanting requirement of rice pot seedlings on film, a non-circular gear — linkage combined planetary gear system transplanting mechanism was proposed. This mechanism enabled a single set of components to achieve the coordinated operation of four processes: seedling picking, seedling delivery, film perforation and digging, and planting meeting the trajectory and attitude requirements of rice pot seedling transplanting on film. The transplanting mechanism was theoretically analyzed, and a kinematic model was established. Combining optimization objectives, a digital visualization optimization design software for the mechanism was developed based on the Matlab GUI platform, resulting in a set of mechanism parameters that met the transplanting requirements through human-computer interaction. Based on the optimized parameters, a comprehensive structural design of the mechanism was conducted, and a 3D model was established. Virtual prototype simulation was performed by using ADAMS software. A physical prototype of the rice pot seedling transplanting mechanism on film and a multifunctional test bench were developed. The kinematic characteristics and performance of the transplanting mechanism under idle and seedling-carrying states were studied. The results showed that the theoretical trajectory, virtual prototype simulation trajectory, and physical prototype test bench trajectory remained consistent within an acceptable error range, validating the consistency and correctness of the design of the transplanting mechanism. The performance test showed a seedling extraction success rate of 94%, a transplanting success rate of 92. 36%, and a coefficient of variation of planting spacing of 2. 67%, meeting the requirements of transplanting operation. This validated the rationality and feasibility of the design of the rice pot seedling transplanting mechanism on film. © 2024 Chinese Society of Agricultural Machinery. All rights reserved.
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页码:63 / 70
页数:7
相关论文
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