Design and Experiment of Seeding Device for Morchella Planter in Southern Xinjiang Desert

Min Li, Xiaowei He (), Xufeng Wang, Guansan Zhu, Xianjin Pan, Kangcheng Gou and Jinxiu Liu
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Min Li: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Xiaowei He: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Xufeng Wang: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Guansan Zhu: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Xianjin Pan: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Kangcheng Gou: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
Jinxiu Liu: College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China

Agriculture, 2025, vol. 15, issue 11, 1-27

Abstract: In seeding operations, fermented seeds with weak surface energy tend to experience problems such as adhesion, seed leakage, and clogging on the seeder’s end. To improve seed distribution uniformity, a three-stage spiral seeding device with “seed filling, transport, and dispersing” functions was designed. Kinematic and dynamic models of fermented seeds under spiral conveying conditions were developed to analyze the motion and force characteristics of the seeds under various working states. A discrete element method (DEM) and multi-body dynamics (MBD) coupled simulation model was established, along with a comprehensive evaluation system for seed distribution uniformity and seeding effectiveness. The influence of spiral speed, pitch, and forward speed of the seeding operation on seed dispersion uniformity and operational efficiency was studied, and optimal structural and operational parameters for the spiral seeder were selected. A prototype of the spiral seeding device was fabricated, and field seeding tests were conducted. The results showed that when the seeder’s rotational speed was 12 r/min, the pitch was 63 mm, and the forward speed of seeder was 3.5 km/h, the seed distribution uniformity index reached 84.53%, with excellent seeding effectiveness and a comprehensive evaluation index of 92.26%. The field application demonstrated good performance, significantly improving both the operational reliability and efficiency of the spiral seeding device.

Keywords: morel mushroom seeder; seed screw components; DEM-MBD coupled simulation; seed uniformity; evaluation index (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: 2025
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