Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Comparison of Work Performance of Crank-type and Rotary-type Rotavators in Korean Farmland Conditions

  • Nam, Ju-Seok (Department of Biosystems and Biomaterials Science and Engineering, Seoul National University) ;
  • Kang, Dae-Sig (Greenmax Co., LTD.) ;
  • Kang, Young-Sun (Tongyang Moolsan Co., LTD.) ;
  • Kim, Kyeong-Uk (Department of Biosystems and Biomaterials Science and Engineering, Seoul National University) ;
  • Kim, Dae-Cheol (Department of Bio-Industrial Machinery Engineering, Chonbuk National University)
  • Received : 2012.04.23
  • Accepted : 2012.06.21
  • Published : 2012.06.30
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Abstract

Purpose: This study was conducted to understand the work performance of crank-type rotavators and compare them with those of rotary-type rotavators in Korean farmland conditions. Methods: Tillage operations were carried out using both rotavators with the same nominal rotavating width and rated power. During the operations, PTO speed and torque, actual work speed, and rotavating width and depth were measured. To evaluate work performance, pulverizing ratio, inversion ratio, and specific volumetric tilled soil were calculated and compared for each rotavator. Results: It is found that the crank-type rotavator has better specific volumetric tilled soil performance and deep tillage, while the pulverizing ratio is worse. Conclusions: Crank-type and rotary type rotavator have diffenent properties each other in several work performances. It's important, therefore, to choose a suitable type of rotavator that satisfy the farmer's requirements in accordance with the condition of field and the purpose of tillage operation.

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References

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