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Simulation and Optimization of a Pendulum-Lever-Type Hole-Seeding Device

Author

Listed:
  • Hengshan Zhou

    (State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
    College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Fei Dai

    (State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
    College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Ruijie Shi

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Cai Zhao

    (State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China)

  • Huan Deng

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Haifu Pan

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Qinxue Zhao

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

Abstract

The process of hole seeding on the mulch during full-film double-row furrow corn planting faces issues such as poor seed discharge and seed blockage. To address these challenges, a pendulum-lever-type hole-forming mechanism is designed, along with an adjustment device. By analyzing the working principles of the pendulum-lever-type hole seeder and the adjustment device, the structural parameters of the device are determined. Through theoretical analysis and simulation experiments, three-dimensional models of seeds and hole seeders are constructed. Based on MBD-DEM cosimulation, the trajectory of seed movement and the seeding process of the hole seeder are analyzed to elucidate the effects of the hole-former opening and the number of pendulum bearings on seeding quality. To improve the operational performance of the hole seeder, experiments are conducted using the hole seeder’s rotating disc speed, lever angle of the hole-former, and the number of pendulum bearings as experimental factors, with the qualification index, miss-seeding index, and reseeding index as experimental indicators. A three-factor, three-level Box–Behnken central composite experiment is performed to obtain mathematical models of the relationships between the experimental factors and indicators. Using Design-Expert 12 software, the regression models are optimized for multiple objectives to obtain the optimal parameter combination: a seeder disc speed of 49 r/min (corresponding to a forward speed of 5.76 km/h), a lever angle of 131°, and four pendulum bearings. Under this optimal parameter combination, the qualification index is 91.70%, the miss-seeding index is 4.57%, and the reseeding index is 3.73%. Experimental validation of the seeding performance of the hole seeder under the optimal parameter combination is conducted. Bench tests show that the qualification index, miss-seeding index, and reseeding index are 90.53%, 5.60%, and 3.87%, respectively. Field tests demonstrate a qualification index of 89.13%, a miss-seeding index of 5.46%, and a reseeding index of 6.41%. The actual results are consistent with the optimized values, providing valuable insights for the design and performance optimization of hole seeders.

Suggested Citation

  • Hengshan Zhou & Fei Dai & Ruijie Shi & Cai Zhao & Huan Deng & Haifu Pan & Qinxue Zhao, 2024. "Simulation and Optimization of a Pendulum-Lever-Type Hole-Seeding Device," Agriculture, MDPI, vol. 14(5), pages 1-23, May.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:5:p:750-:d:1392746
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    References listed on IDEAS

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    1. Sugirbay Adilet & Jian Zhao & Nukeshev Sayakhat & Jun Chen & Zagainov Nikolay & Lingxin Bu & Zhanar Sugirbayeva & Guangrui Hu & Muratkhan Marat & Zhiwei Wang, 2021. "Calibration Strategy to Determine the Interaction Properties of Fertilizer Particles Using Two Laboratory Tests and DEM," Agriculture, MDPI, vol. 11(7), pages 1-19, June.
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