Study on a Novel Reseeding Device of a Precision Potato Planter

Jiarui Wang, Min Liao (), Hailong Xia, Rui Chen, Junju Li, Junmin Li and Jie Yang
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Jiarui Wang: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Min Liao: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Hailong Xia: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Rui Chen: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Junju Li: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Junmin Li: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China
Jie Yang: Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China

Agriculture, 2024, vol. 14, issue 10, 1-25

Abstract: In order to address the problem of a high miss-seeding rate in mechanized potato planting work, a novel reseeding device is designed and analyzed. Based on dynamic and kinematic principles, the seed potato’s motion analysis model in the seed preparation process was constructed. The analysis results indicate that the seed preparation performance is positively related to the seed preparation opening length l 1 and inclination angle of the seed-returning pipe θ . Then, the potato’s motion analysis model in the reseeding process was constructed. The analysis showed that the displacement of seeding potatoes in the horizontal direction d s is influenced by the initial seeding potato’s speed v 0 t , dropping height h s , and the angle between the seeding pipe and the horizontal ground β s . The horizontal moving distance x r of the reseeding potatoes is influenced by the angle between the bottom of the reseeding pipe and horizontal ground β s 2 , the distance from its centroid to the reseeding door d , and the dropping height of the potato h r . The analysis results indicated that the reseeding potato can be effectively discharged into the furrow. Then, a prototype of a reseeding control system was constructed based on the STM32 microcontroller, electric pushers, and through-beam laser sensors. The simulation analysis was conducted to verify the theoretical analysis by using EDEM2020 software. The simulation results indicated that with the increase in the seeding chain speed, the seed preparation success rate initially increased slowly and then decreased gradually. The seed preparation performance can be increased by increasing the seed preparation opening length or decreasing the seed-returning pipe inclination angle. The impact on the successful seed preparation rate is ranked by significance as follows: seed preparation opening length > seed-returning pipe inclination angle > chain speed. Then, the prototype reseeding device and the corresponding seed metering device were manufactured and a series of bench tests and field tests were conducted. The bench test results showed an average successful seed preparation rate of 93.6%. The average qualified-seeding rate, miss-seeding rate, and multi-seeding rate in the field test were 89.6%, 2.46%, and 7.94%, respectively. This study can provide a theoretical reference for the design of potato reseeding devices.

Keywords: potato planter; improvement of reseeding device; EDEM simulation; orthogonal experiment (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: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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