Design Evaluation and Performance Analysis of the Inside-Filling Air-Assisted High-Speed Precision Maize Seed-Metering Device

Jinwu Wang, Xin Qi, Changsu Xu, Ziming Wang, Yeming Jiang and Han Tang
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Jinwu Wang: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Xin Qi: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Changsu Xu: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Ziming Wang: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Yeming Jiang: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Han Tang: College of Engineering, Northeast Agricultural University, Harbin 150030, China

Sustainability, 2021, vol. 13, issue 10, 1-19

Abstract: In view of the problems of a poor seed-filling state and poor seed-cleaning effect of a precision metering device under high-speed working conditions, an inside-filling air-assisted high-speed precision maize seed-metering device was designed, fabricated, and evaluated. The overall structure and working principles of the seed-metering device are explained. Theoretical analysis and parametric design of the key parts, such as the horizontal stirring notch seed-metering plate and the wheel seed-cleaning mechanism, were carried out. The main factors that produce multiple seeding problems were studied. The forward speed (FS) and working pressure (WP) of the seed-metering device are determined as the main factors affecting the seeding performance. A quadratic orthogonal rotation combination experiment was designed. The relationship between influencing factors and performance indexes was constructed using the Design-Expert 10.0.7 software. The response surface method was used to optimize the experimental results. The results of the bench validation experiments showed that the seeding performance of the seed-metering device was excellent when the FS of the seed-metering device was 13.10 km/h and the WP of the seed-metering device was 4.75 kPa. The results of the bench comparison showed that the seeding performance of the designed seed-metering device was better than that of the conventional air-suction precision seed-metering device. This study provides theoretical and practical references for the optimized design of a pneumatic precision seed-metering device and the sustainable development of grain.

Keywords: field machinery; maize; seed-metering device; precision agriculture (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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