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2024 Vol.36, Issue 4 Preview Page

Research Article

Evaluation of a Prototype Double-conveyor Sweet Potato Harvester for Low-damage Rate
Jinho Won1
,
Dae Cheol Kim2*
,
Juneyoung Han1
,
Og Ran Park3
,
Yongjin Cho2*
1Graduate student, Department of Bioindustrial Machinery Engineering, Jeonbuk National University, Jeonju 54896, Korea
2Professor, Department of Bioindustrial Machinery Engineering, Jeonbuk National University, Jeonju 54896, Korea
3CEO, Hyundae Agricultural Machinery Co., Iksan 54584, Korea
*Corresponding Author
31 December 2024. pp. 522-533
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Abstract

In this study, a double-conveyor sweet potato harvester was developed and its performance was evaluated based on digging and damage rates. The double-conveyor sweet potato harvester was designed to have digging blade length of 500 mm and a conveying part with a long chain length of 2,000 mm. Rubber packing was mounted on the conveying part to reduce damage to sweet potatoes during conveying. The performance of the newly developed harvester was compared with those of a vibration digging-type harvester and plow-type working machinery. A harvest test was carried out in a sweet potato cultivation area located in Gimje-si, Jeollabuk-do, where the soil texture was red clay loam. The sweet potato variety was Beniharuka. The driving speed of the agricultural tractor was set to approximately 1 km/h, and the PTO (power take-off) rotational velocity was set to 1st stage (540 rpm). The digging ratios for the vibration digging-type sweet potato harvester and the plow-type working machinery were 92.48% and 97.10%, respectively. The double-conveyor sweet potato harvester showed a digging ratio of approximately 98.59%. The damage ratios were 77.10% for the vibration digging-type sweet potato harvester, 53.42% for the plow-type working machinery, and approximately 29.55% for the double-conveyor-type sweet potato harvester.

Keywords
Damage ratio
Digging ratio
Sweet potato
Sweet potato harvester
Underground crop harvester
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Information
  • Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
  • Publisher(Ko) :None
  • Journal Title :Journal of Agricultural, Life and Environmental Sciences
  • Journal Title(Ko) :농업생명환경연구
  • Volume : 36
  • No :4
  • Pages :522-533
  • Received Date : 2024-11-08
  • Revised Date : 2024-12-05
  • Accepted Date : 2024-12-09
  • DOI :https://doi.org/10.22698/jales.20240040
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