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Design and Test of a Crawler-Type Tiger-Nut Combine Harvester

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  • Zhe Qu

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Minghui Han

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Yanliu Lv

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Zheng Zhou

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Zhijun Lv

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Wanzhang Wang

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

  • Xun He

    (College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China)

Abstract

Traditional harvesters of tiger nuts ( Cyperus esculentus ) face problems including low harvesting efficiency, high loss rate, high impurity rate, and high labor intensity. To solve these problems and improve the harvesting efficiency and quality of tiger nuts, a crawler-type tiger-nut combine harvester that integrates digging, soil removal, picking, screening, and collection was designed. The machinery comprises crawler devices and working devices. The key devices were designed through theoretical analysis. Therein, the digging and hoisting devices consist of digger blades, combined soil-breaking blades, and vibrating hoisting chains. The tuber picking and screening device is composed of the tuber picking drum, double-deck heterodromous vibrating screens, impurity removal blowers, and soil-crushing guide rollers. The crawler devices include the track assemblies and the hydraulic driving systems. SolidWorks was used to establish the virtual prototype model. Combined with simulation using the discrete element software, the law of motion of tiger-nut tubers in the digging, elevation, and screening processes was studied, which verified the feasibility of the design. Finally, a prototype was manufactured and fabricated to conduct field harvesting tests on tiger nuts. Field test results indicate that the harvesting efficiency, harvest rate, and impurity rate of the tiger-nut harvester are separately 0.216 ha/h, 98.14%, and 3.24%, which meet the harvesting requirements for tiger-nut growers.

Suggested Citation

  • Zhe Qu & Minghui Han & Yanliu Lv & Zheng Zhou & Zhijun Lv & Wanzhang Wang & Xun He, 2023. "Design and Test of a Crawler-Type Tiger-Nut Combine Harvester," Agriculture, MDPI, vol. 13(2), pages 1-20, January.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:2:p:277-:d:1044992
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    References listed on IDEAS

    as
    1. Xun He & Yanliu Lv & Zhe Qu & Wanzhang Wang & Zheng Zhou & Hao He, 2022. "Parameters Optimization and Test of Caterpillar Self-Propelled Tiger Nut Harvester Hoisting Device," Agriculture, MDPI, vol. 12(7), pages 1-18, July.
    2. Shengwei Zhang & Jun Fu & Ruiyu Zhang & Yan Zhang & Hongfang Yuan, 2022. "Experimental Study on the Mechanical Properties of Friction, Collision and Compression of Tiger Nut Tubers," Agriculture, MDPI, vol. 12(1), pages 1-18, January.
    3. Hongmei Zhang & Zheng Zhou & Zhe Qu & Zhijie Li & Wanzhang Wang, 2022. "Simulation and Experiment of Sieving Process of Sieving Device for Tiger Nut Harvester," Agriculture, MDPI, vol. 12(10), pages 1-16, October.
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