Design of an Air Suction Wheel-Hole Single Seed Drill for a Wheat Plot Dibbler

Xinchun Ma, Qixiang Gong, Qingjie Wang (), Dijuan Xu, Yinggang Zhou, Guibin Chen, Xinpeng Cao and Longbao Wang
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Xinchun Ma: College of Engineering, China Agricultural University, Beijing 100083, China
Qixiang Gong: College of Engineering, China Agricultural University, Beijing 100083, China
Qingjie Wang: College of Engineering, China Agricultural University, Beijing 100083, China
Dijuan Xu: College of Mechanical and Electrical Engineering, Beijing Vocational College of Agriculture, Beijing 100083, China
Yinggang Zhou: Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China
Guibin Chen: College of Engineering, China Agricultural University, Beijing 100083, China
Xinpeng Cao: College of Engineering, China Agricultural University, Beijing 100083, China
Longbao Wang: College of Engineering, China Agricultural University, Beijing 100083, China

Agriculture, 2022, vol. 12, issue 10, 1-25

Abstract: Focusing on the problems of the poor filling ability and stability of the mechanical wheat seeder and the complicated structure of the pneumatic seeder, a special air suction wheel-hole single seed drill for remote controlled self-propelled single seed dibbler in wheat plots was designed in this paper. According to the agronomic requirements of precision seeding in wheat plots, the seeding wheel radius was set at 180 mm 16 suction holes. Using the discrete element simulation software EDEM to analyze the seed disturbance effect of different parameter designs, the thickness of seed suction ring was 16 mm, the height of seed suction mouth was 4.5 mm, and the diameter of seed suction cam was 12 mm. Through hydrodynamic simulation, the phase angle of the negative pressure chamber was 280 degrees, positive pressure chamber was 22 degrees, phase angle of the unpressurized interval zone was 20 degrees, thickness of the negative pressure chamber was 24.5 mm, diameter of transition pipe was 17.5 mm and length of the transition pipe was 14.5 mm. Based on the above design parameters, the samples were then processed and benchtop experiments carried out. The results showed that under the best operating parameters, the re-suction index was 0.82%, the leakage index was 6.67%, and the qualified index was 92.41%, which met the design requirements. This study could provide a reference for the design of single-seed dibbling technology in wheat plots.

Keywords: wheat; air suction wheel-hole; seed drill; discrete element simulation; single-seed dibbling (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: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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