Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize
Aiming at the unstable filling effect under high-speed operating conditions of the maize mechanical precision metering device, which easily causes the problem of leakage and multiple filling, a novel filling method was proposed to limit the number of seeds accumulation in front of the filling port b...
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MDPI AG
2025-07-01
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| Series: | Agriculture |
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| author | Jianxin Dong Jingtao Wu Yu Zhu Xiaojun Gao |
| author_facet | Jianxin Dong Jingtao Wu Yu Zhu Xiaojun Gao |
| author_sort | Jianxin Dong |
| collection | DOAJ |
| description | Aiming at the unstable filling effect under high-speed operating conditions of the maize mechanical precision metering device, which easily causes the problem of leakage and multiple filling, a novel filling method was proposed to limit the number of seeds accumulation in front of the filling port by a composite seeding tray and improve the filling effect for single-seed. Meanwhile, a quantitative precision filling seed-metering device for maize was presented. The structural parameter design of the key components was completed, and the principle of improving the seed-filling effect was analyzed and elucidated. The optimal type of grooved teeth for the composite seeding tray was selected, and a Box–Behnken orthogonal optimization experiment was conducted using EDEM simulation. The high-speed seed-metering performance optimization results were validated through a platformed performance experiment. The results indicated that the seed-metering device had higher seed supply capacity, better seed-filling effect, and superior seed-metering performance under the type A grooved teeth condition. When the opening height of the seed barrier was 19.4 mm, the depth of the grooved teeth was 1.2 mm, and the operating speed was 10.7 km·h<sup>−1</sup>, the seed-metering performance was optimal. The passing, repetitive, and miss rates were 95.1%, 1.6%, and 3.3%, respectively. When the operating speed was 8–14 km·h<sup>−1</sup>, the passing rate of the seed-metering device was higher than 94.1%, the repetitive rate was lower than 2.3%, and the miss rate was lower than 3.7%. This work provides a reference for enhancing the seed-filling effect of mechanical precision metering devices under high-speed operating conditions. |
| format | Article |
| id | doaj-art-e0d2124b42e347cead747eccb89c91bb |
| institution | Matheson Library |
| issn | 2077-0472 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Agriculture |
| spelling | doaj-art-e0d2124b42e347cead747eccb89c91bb2025-07-25T13:09:22ZengMDPI AGAgriculture2077-04722025-07-011514151710.3390/agriculture15141517Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for MaizeJianxin Dong0Jingtao Wu1Yu Zhu2Xiaojun Gao3College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot 010018, ChinaCollege of Mechanical and Electronic Engineering, Northwest A & F University, Xianyang 712100, ChinaCollege of Humanities and Social Development, Northwest A & F University, Xianyang 712100, ChinaCollege of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaAiming at the unstable filling effect under high-speed operating conditions of the maize mechanical precision metering device, which easily causes the problem of leakage and multiple filling, a novel filling method was proposed to limit the number of seeds accumulation in front of the filling port by a composite seeding tray and improve the filling effect for single-seed. Meanwhile, a quantitative precision filling seed-metering device for maize was presented. The structural parameter design of the key components was completed, and the principle of improving the seed-filling effect was analyzed and elucidated. The optimal type of grooved teeth for the composite seeding tray was selected, and a Box–Behnken orthogonal optimization experiment was conducted using EDEM simulation. The high-speed seed-metering performance optimization results were validated through a platformed performance experiment. The results indicated that the seed-metering device had higher seed supply capacity, better seed-filling effect, and superior seed-metering performance under the type A grooved teeth condition. When the opening height of the seed barrier was 19.4 mm, the depth of the grooved teeth was 1.2 mm, and the operating speed was 10.7 km·h<sup>−1</sup>, the seed-metering performance was optimal. The passing, repetitive, and miss rates were 95.1%, 1.6%, and 3.3%, respectively. When the operating speed was 8–14 km·h<sup>−1</sup>, the passing rate of the seed-metering device was higher than 94.1%, the repetitive rate was lower than 2.3%, and the miss rate was lower than 3.7%. This work provides a reference for enhancing the seed-filling effect of mechanical precision metering devices under high-speed operating conditions.https://www.mdpi.com/2077-0472/15/14/1517high-speed maize seederinitial fillingsingle-seedprecision fillingEDEM |
| spellingShingle | Jianxin Dong Jingtao Wu Yu Zhu Xiaojun Gao Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize Agriculture high-speed maize seeder initial filling single-seed precision filling EDEM |
| title | Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize |
| title_full | Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize |
| title_fullStr | Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize |
| title_full_unstemmed | Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize |
| title_short | Investigation on Seed-Filling Effect of Quantitative Precision Filling High-Speed Seed-Metering Device for Maize |
| title_sort | investigation on seed filling effect of quantitative precision filling high speed seed metering device for maize |
| topic | high-speed maize seeder initial filling single-seed precision filling EDEM |
| url | https://www.mdpi.com/2077-0472/15/14/1517 |
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