Design and Experiment of Bionic Film-Lifting Shovel for Residual Film Recycling Machine

Yan Zhao, Wenzhe Wang, Haojun Wen, Xuegeng Chen, Xinliang Tian (), Yuanchao Li and Guangliang Huang
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Yan Zhao: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Wenzhe Wang: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Haojun Wen: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Xuegeng Chen: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Xinliang Tian: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Yuanchao Li: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Guangliang Huang: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China

Agriculture, 2025, vol. 15, issue 21, 1-16

Abstract: The aim of this study is to improve the film removal rate of a film removal device on a residual film recovery machine and mitigate the soil compaction caused by film removal operations during the residual film recovery process. We designed a bionic film-lifting shovel by applying the contour curve of the first claw of the North China mole cricket’s front foot to the soil-penetrating portion of the film-lifting tines. Based on agronomic requirements and mechanical analysis of the operation process, the biomimetic blade was developed to break up soil more effectively and lift the residual film more efficiently. The contour features were obtained using high-definition cameras, with the fitting equation guiding the design of the soil-penetrating structure. A three-dimensional model was constructed using SolidWorks. Tensile tests provided the physical parameters of the autumn residual film, enabling the creation of a finite element model using the Mohr–Coulomb yield criterion. Simulation comparisons showed that the biomimetic shovel teeth reduced the operating resistance by 9.3% compared to conventional teeth. Soil trench experiments validated these results, demonstrating a 4.24% higher film-lifting rate and average resistance of 411.49 N for the bionic shovel versus 454.70 N for the conventional one. The close match between the experimental and simulation results confirms the effectiveness of the bionic design in meeting the resistance reduction requirements.

Keywords: residual film recovery; film-lifting blade; bionics; finite element analysis; soil bin test (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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