Design and Experiment of Double-Row Seed-Metering Device for Buckwheat Large Ridges

Xindan Qiao, Dequan Liu, Xiaolei Wang, Wang Li, Jiawei Wang and Decong Zheng ()
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Xindan Qiao: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
Dequan Liu: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
Xiaolei Wang: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
Wang Li: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
Jiawei Wang: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
Decong Zheng: College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China

Agriculture, 2023, vol. 13, issue 10, 1-19

Abstract: This article focuses on the low accuracy, poor stability, and other shortcomings of the traditional outer-groove buckwheat seed-metering wheel. A wheel-type large-ridge double-row seed-metering device with inner seed-filling holes was designed. The seed-metering device’s structural composition, working principle, and main technical parameters are clarified. The structural parameters of the seed-metering device shell and the seed-metering wheel are determined based on the force analysis, movement trajectory, and physical characteristics of the buckwheat grains. This experiment uses the JPS-12 metering device performance experiment bench for bench experimenting. The experiment uses the seed-metering device’s rotation speed, the seed position’s height, and the seed wheel’s aperture as experiment factors. Based on the experiment indicators of the qualified rate of number of holes and the grain damage rate, we used Design-Expert12 software to design single-factor, response surface, and verification experiments. The experiment results show that the best parameter combination is a seed-metering device rotation speed of 67 r/min, a seed position height of 115 mm, and a seed wheel aperture of 8 mm. In the optimal parameters, the qualified rate of the number of holes is 90.23%, and the grain damage rate is 0.62%. The experiment indicators meet the operational requirements of the buckwheat seeding device. The design and experimenting of the buckwheat large-ridge double-row seeding device provide a reference for further research on buckwheat seeding.

Keywords: buckwheat; seed-metering device; bunch planting; orthogonal experimental design; response surface methodology (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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