| Design and test of pendulum\|clamped corn precision seed metering device |
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| DOI：10.7606/j.issn.1000-7601.2023.06.31 |
| Key Words: precision seed\|metering device pendulum clamping corn |
| Author Name | Affiliation | | WU Haifeng | College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi， Xinjiang 830052, China | | ZHANG Xuejun | College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi， Xinjiang 830052, China
Xinjiang Key Laboratory of Intelligent Agricultural Equipment, Urumqi， Xinjiang 830052, China | | SHI Zenglu | College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi， Xinjiang 830052, China
Xinjiang Key Laboratory of Intelligent Agricultural Equipment, Urumqi， Xinjiang 830052, China | | FU Hao | College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi， Xinjiang 830052, China | | YU Yongliang | Xinjiang Tiancheng Agricultural Equipment Manufacturing Co., Tiemenguan， Xinjiang 841007, China |
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| Abstract: |
| To solve the problem of large variability of corn seed size and high requirements for the adaptability of seed\|metering device parameters, a pendulum\|clamped corn precision seed\|metering device was designed, its structure and working principle were elaborated, and key components and parameters were analyzed. The key factors affecting the seed dispersal performance were determined by theoretical calculation, and the response surface test was conducted with the seed\|metering device speed, the number of torsion spring turns and the radius of the base circle of the plate as the test factors, and the passing rate, the vacancy rate, and the multigrain rate as the test indexes. The results showed that the optimal operating parameters for the seed\|metering device performance were the seed\|metering device speed of 26.7 r·min-1, the number of torsion spring turns of 10 and the radius of base circle of curved plate of 100 mm. The passing rate under the optimal combination of parameters was 93.2%, the vacancy rate was 3.8%, and the multigrain rate was 3%. The field verification test was conducted under the optimal combination, and the field seed rowing passing rate of the seed\|metering device was 94.2%, the vacancy rate was 3.6%, and the multigrain rate was 2.2%, which met the requirements of the national industry standard. |
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