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Design and Experimental Study of a Bionic Blade for Harvesting the Wild Chrysanthemum Stem

Author

Listed:
  • Zhengdao Liu

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Tao Wang

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Suyuan Liu

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Xiaoli Yan

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Hongbo Zhao

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Xiaopeng Wu

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

  • Shuo Zhang

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

Abstract

Wild chrysanthemum has a high medicinal value. Its mechanized harvest can improve harvesting efficiency, reduce labor costs and improve planting benefits, which is an important way to promote artificial planting. However, one of the difficulties in mechanized harvesting is the large diameter and hardness of the stem, leading to high cutting resistance and power consumption. In order to reduce cutting resistance and power consumption, a bionic cutting blade is designed in this paper by employing the bionics principle and the contour of the cricket’s upper jaw incisor lobe instead of the sharp triangular teeth of the standard harvester blade. Using the finite element method, the cutting-edge angle, cutting angle, and reciprocating speed were taken as test factors. The maximum shear force and power consumption were taken as evaluation indexes. At the same time, the center combination simulation test was carried out to optimize the cutting body and to determine the optimal cutting speed. When the cutting-edge angle was 21°, the cutting angle was 66°, the reciprocating speed was 1.29 m/s, and the maximum shear force and power consumption were minimal. The results showed that the maximum shear force of the bionic cutter was reduced by 18% and the power consumption by 15.8%. The bench test showed that the maximum shear force and power consumption of the bionic cutter were reduced by 10.5% and 10.8%, respectively, when the entire wild chrysanthemum stem was cut. The results can provide a reference for the mechanical harvesting of wild chrysanthemum stems.

Suggested Citation

  • Zhengdao Liu & Tao Wang & Suyuan Liu & Xiaoli Yan & Hongbo Zhao & Xiaopeng Wu & Shuo Zhang, 2023. "Design and Experimental Study of a Bionic Blade for Harvesting the Wild Chrysanthemum Stem," Agriculture, MDPI, vol. 13(1), pages 1-16, January.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:1:p:190-:d:1033338
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    References listed on IDEAS

    as
    1. Tao Wang & Zhengdao Liu & Xiaoli Yan & Guopeng Mi & Suyuan Liu & Kezhou Chen & Shilin Zhang & Xun Wang & Shuo Zhang & Xiaopeng Wu, 2022. "Finite Element Model Construction and Cutting Parameter Calibration of Wild Chrysanthemum Stem," Agriculture, MDPI, vol. 12(6), pages 1-12, June.
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    Cited by:

    1. Kunpeng Tian & Bin Zhang & Cheng Shen & Haolu Liu & Jicheng Huang & Aimin Ji, 2023. "Dynamic Cutting Performance Test and Parameter Optimization of Longicorn Bionic Blade for Industrial Hemp Harvester," Agriculture, MDPI, vol. 13(5), pages 1-13, May.

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