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Effect of Auxiliary Air-Suction Seed-Filling Structure on Seed Discharge Performance of Peanut High-Speed Seed-Metering Machine

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  • Peng Guo

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China)

  • Bin Sun

    (College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Shuqi Shang

    (College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Jialin Hou

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China)

  • Dongwei Wang

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
    College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao 266109, China
    Yellow River Delta Intelligent Agricultural Machinery Equipment Industry Academy, Dongying 257300, China)

  • Zhuang Zhao

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China)

  • Ahmed Elshafie

    (Yellow River Delta Intelligent Agricultural Machinery Equipment Industry Academy, Dongying 257300, China
    Industrial Research Institute of Saline and Alkaline High-Efficiency Agricultural Technology, Qingdao Agricultural University, Dongying 257300, China)

  • Xiaoshuai Zheng

    (Yellow River Delta Intelligent Agricultural Machinery Equipment Industry Academy, Dongying 257300, China)

  • Farid Eltoum

    (Yellow River Delta Intelligent Agricultural Machinery Equipment Industry Academy, Dongying 257300, China
    Industrial Research Institute of Saline and Alkaline High-Efficiency Agricultural Technology, Qingdao Agricultural University, Dongying 257300, China)

Abstract

Aiming to resolve the problem of the poor peanut seed-filling effect under high-speed operation when developing high-speed peanut sowing with precision, a peanut precision seed-metering machine with an auxiliary air-suction seed-filling device was designed. Focusing on the force analysis of peanuts in the seed chamber, the peanut seed disturbance principle in the seed-metering machine for the blowing structure of an auxiliary air-suction seed-filling device was clarified. The seed-filling process was analyzed via DEM-CFD coupled simulation, and three factors affecting the seed-filling effect were identified, namely the seed-filling chamber ‘V’ angle γ , the bottom blow-air-hole cross-sectional area S , and the bottom blow-air-hole airflow velocity v q , and the ranges of values of the three factors were determined. The Box–Behnken test was conducted using the seed-filling index and leakage index as the indexes. The results show that the seed-filling chamber ‘V’ angle γ is 56.59°, the bottom blowhole cross-sectional area S is 1088.4 mm 2 , and the blowhole air velocity v q is 12.11 m·s −1 . At this point, the peanut seed suction qualification index and leakage index are optimal, the seed suction qualification index is 96.33%, and the seed leakage index is 2.59%. At the same time, the field test shows that a sowing operation speed of 8–12 km·h −1 , a qualified index > 93%, and a leakage index < 4.5% are required to meet the agronomic requirements of peanut precision sowing.

Suggested Citation

  • Peng Guo & Bin Sun & Shuqi Shang & Jialin Hou & Dongwei Wang & Zhuang Zhao & Ahmed Elshafie & Xiaoshuai Zheng & Farid Eltoum, 2025. "Effect of Auxiliary Air-Suction Seed-Filling Structure on Seed Discharge Performance of Peanut High-Speed Seed-Metering Machine," Agriculture, MDPI, vol. 15(15), pages 1-28, August.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:15:p:1678-:d:1716420
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    References listed on IDEAS

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    1. Yao Xiao & Zitao Ma & Mingliang Wu & Haifeng Luo, 2022. "Numerical Study of Pneumatic Conveying of Rapeseed through a Pipe Bend by DEM-CFD," Agriculture, MDPI, vol. 12(11), pages 1-14, November.
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