| Design and experiment of Chinese cabbage harvester with multi\|link and chute combination |
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| DOI：10.7606/j.issn.1000-7601.2025.04.28 |
| Key Words: Chinese cabbage harvester multi\|link and chute combined type clamping and transfer mechanism simulating optimization |
| Author Name | Affiliation | | LIU Quanwei | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China
College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, Henan 450002, China | | ZHU Yonghuan | Department of Mechanical Engineering, Luohe Technician College, Luohe, Henan 462000, China | | LUO Zeyu | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | WU Jing | Laboratory & Equipment Management Department, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | WANG Yanhu | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | Huang Jinhan | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | Qu Zhe | College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, Henan 450002, China | | ZENG Guang | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | ZHANG Haijun | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China | | GUO Jiajie | School of Mechanical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, China |
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| Abstract: |
| To solve the problems of the lack of small suitable machines for Chinese cabbage harvesting in North China and poor harvest quality and low efficiency, a small, multi\|link sliding channel combined Chinese cabbage harvesting machine was designed. The harvester mainly consists of a clamping mechanism, cutting mechanism, transfer mechanism, and collection box, which can complete the clamping, root cutting, transfer, and collection of Chinese cabbage at one time. In order to obtain good working performance, the theoretical calculation and simulation analysis of key components, and field tests were carried out. The kinematics and dynamics models of the clamping mechanism were established, and the thrust and working stroke of the electric push rod were determined. The motion analysis of the multi\|link transfer mechanism was carried out, and the rod length of the transfer mechanism was optimized by MATLAB software. The kinematic model of the transfer mechanism was established, and the rated torque of the transfer motor was determined. The process of gripping Chinese cabbage with a claw was simulated and analyzed in ADAMS software. According to the simulation results, the gripping force of a single claw was determined to be 125 N. The simulation results showed that the end track of the transfer mechanism was a quarter arc, and the transfer mechanism could realize the smooth transfer of Chinese cabbage and complete the harvest of a cabbage within 6 s. Field experiments were carried out on the harvester, and the results showed that the average field productivity was about 451 seeds·hour-1, the qualified rate of root cutting, the success rate of clamping, and the success rate of transport were 99.0%, 99.2%, and 98.8%, respectively, which could meet the requirements of the cabbage harvesting operation. |
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