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Design and Fatigue Life Analysis of the Rope-Clamping Drive Mechanism in a Knotter

Author

Listed:
  • Jianjun Yin

    (School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Zefu Chen

    (School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Shiyu Lv

    (School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Han Wu

    (School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Yansu Gao

    (School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Luning Wu

    (Faculty of Aerospace Engineering, Jiangsu Aviation Technical College, Zhenjiang 212234, China)

Abstract

A knotter is a core component for the automatic bundling of agricultural materials, and a knotter with double-fluted discs is one type. Currently, the research on knotters with double-fluted discs has gradually transitioned from structural design to reliability optimization. To address rope-clamping failures in the rope-clamping drive mechanisms in knotters, the specific failure position of the rope-clamping mechanism and the failure causes were analyzed first. The redesign of the rope-clamping drive mechanism in knotters with double synclastic fluted discs was proposed, including structure optimization and 3D modeling using the GearTrax/KISSsoft and SolidWorks software. A virtual prototype model of a knotter with a flexible rope was established by combining ANSYS with the ADAMS software. A rigid–flexible coupling dynamic simulation of the knotter was carried out using ADAMS, and the simulation results were used as the data input for the ANSYS nCode DesignLife module for the fatigue life simulation of the weak parts (the worm shaft) of the knotter. The operation test results for the rope-clamping drive mechanism indicate that the redesigned rope-clamping drive mechanism is reliable in transmission, with a rope-clamping success rate of 100%. The actual operation times for the worm shaft exceed the minimum fatigue life obtained through joint simulation. The applied joint simulation method has high simulation accuracy.

Suggested Citation

  • Jianjun Yin & Zefu Chen & Shiyu Lv & Han Wu & Yansu Gao & Luning Wu, 2024. "Design and Fatigue Life Analysis of the Rope-Clamping Drive Mechanism in a Knotter," Agriculture, MDPI, vol. 14(8), pages 1-13, July.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:8:p:1254-:d:1446030
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