Design and Optimization of a Soil-Covering Device for a Corn No-Till Planter

Yuanle Geng, Xianliang Wang (), Xiaokang Zhong, Xiangcai Zhang, Kun Chen, Zhongcai Wei, Qingxin Lu, Xiupei Cheng and Mingtao Wei
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Yuanle Geng: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Xianliang Wang: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Xiaokang Zhong: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Xiangcai Zhang: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Kun Chen: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Zhongcai Wei: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Qingxin Lu: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Xiupei Cheng: School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
Mingtao Wei: Weifang Letian Agricultural Science & Technology Co., Ltd., Weifang 261102, China

Agriculture, 2022, vol. 12, issue 8, 1-20

Abstract: Aiming to solve the problems of easy generation of clods, poor soil fluidity and poor soil-covering effect in the no-tillage seeding operation mode, this study has designed a soil-covering device with a soil-closing function for the chisel-type furrow opener of a corn no-tillage planter. Theoretical analysis and design of the soil dividing plate and the soil-covering disc were carried out, and the key parameters were determined. Then, the soil-covering device with soil-closing function and the soil movement model was constructed in Altair EDEM, and the spatial soil particle mobility was analyzed. The numerical simulation method was combined with the center plane composite response test scheme to carry out the simulation test, and the optimal working parameter combination was obtained. The operating speed was 6.35 km·h −1 , the inclination angle of the soil-covering disc was 60°, the opening angle of the soil-covering disc was 70°, and the inclination angle of the soil dividing plate was 40°. A comparative test of the soil-covering effect and performance was carried out, and the results showed that the designed device was better than the traditional soil-covering device in terms of the consistency of soil-covering thickness and the stability of seed position deviation. The relative errors of the soil bin experiment results and the simulation optimization results for the cover soil thickness and seed position deviation were 5.7% and 11.1%, respectively. The operation effect of the designed soil-covering device with soil-closing function meets the requirements of soil covering under no-tillage conditions and provides a basis for the research and development of soil-covering suppression technology and devices under no-tillage seeding mode.

Keywords: no-tillage; soil cover; discrete element; soil-covering thickness; seed offset (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
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