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Agronomy
Volume 15
Issue 8
10.3390/agronomy15081917
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Design and Optimization Experiment of a Cam-Swing Link Precision Metering Device for Peanut Based on Simulation

by
Jinling Cong
1,
Jiaming Wang
1,
Yunlong Xie
1,
Kaiqi Ouyang
1,
Shisen Wu
1,
Kun Cao
2 and
Lei Wang
3,*
1
School of Intelligent Engineering, Shaoxing University, Shaoxing 312000, China
2
College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
3
College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
*
Author to whom correspondence should be addressed.
Agronomy 2025, 15(8), 1917; https://doi.org/10.3390/agronomy15081917
Submission received: 20 July 2025 / Revised: 4 August 2025 / Accepted: 7 August 2025 / Published: 8 August 2025
(This article belongs to the Section Precision and Digital Agriculture)
Versions Notes

Abstract

To address the problem of unstable seed filling and low seeding accuracy caused by poor seed flow in conventional peanut seed metering devices, a novel precision metering device based on a cam-swing link was developed. Using EDEM simulations, the capacity of different type hole installation positions to induce seed cluster disturbance was analyzed. A single-factor test and MBD–DEM coupled simulation were conducted to analyze the seeding performance. The simulation results indicate that when the type hole protrusion height was set to half the thickness of the seeding disc, seed cluster kinetic energy remained relatively stable, enhancing the capability to disturb seeds. As the seeding disc rotational speed increased from 10 to 40 rpm, the qualified index initially increased and then declined. Increasing the cluster wrap angle from 20° to 70° similarly led to a peak in the qualified index and a steady decrease in the missed index. Using the JPS-12 computer vision-based test platform, a second-order rotary orthogonal design was applied to evaluate the seeding performance. The experimental results show that when the seeding disc rotational speed was set at 26 rpm and the seed cluster wrap angle at 46°, the qualified index reached 89.95%, and the missed index was 4.04%. The average plant spacing of peanuts in field experiments was 137.82 mm. These results meet the operational requirements for precision peanut planting.
Keywords: peanut seed; precision metering device; seeding disc; cam-swing link mechanism; seed-filling performance peanut seed; precision metering device; seeding disc; cam-swing link mechanism; seed-filling performance

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MDPI and ACS Style

Cong, J.; Wang, J.; Xie, Y.; Ouyang, K.; Wu, S.; Cao, K.; Wang, L. Design and Optimization Experiment of a Cam-Swing Link Precision Metering Device for Peanut Based on Simulation. Agronomy 2025, 15, 1917. https://doi.org/10.3390/agronomy15081917

AMA Style

Cong J, Wang J, Xie Y, Ouyang K, Wu S, Cao K, Wang L. Design and Optimization Experiment of a Cam-Swing Link Precision Metering Device for Peanut Based on Simulation. Agronomy. 2025; 15(8):1917. https://doi.org/10.3390/agronomy15081917

Chicago/Turabian Style

Cong, Jinling, Jiaming Wang, Yunlong Xie, Kaiqi Ouyang, Shisen Wu, Kun Cao, and Lei Wang. 2025. "Design and Optimization Experiment of a Cam-Swing Link Precision Metering Device for Peanut Based on Simulation" Agronomy 15, no. 8: 1917. https://doi.org/10.3390/agronomy15081917

APA Style

Cong, J., Wang, J., Xie, Y., Ouyang, K., Wu, S., Cao, K., & Wang, L. (2025). Design and Optimization Experiment of a Cam-Swing Link Precision Metering Device for Peanut Based on Simulation. Agronomy, 15(8), 1917. https://doi.org/10.3390/agronomy15081917

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