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Design of Motor-driven Traveling System for High Clearance Working Machinery based on Tractive Performance and Hill Climbing Ability

견인 및 등판 성능을 통한 고소작업기계의 모터 주행장치 설계

  • Lee, Sangsik (Department of Biomedical Engineering, Catholic Kwandong University) ;
  • Jang, Seyoon (Sungboo Industry, Ltd.) ;
  • Kim, Taesoo (Korea Invention Promotion Association) ;
  • Nam, Kyoucheol (Department of Mechanical Engineering, Hankyong National University) ;
  • Park, Wonyeop (Department of Mechanical Engineering, Hankyong National University)
  • Received : 2016.05.09
  • Accepted : 2016.06.23
  • Published : 2016.06.30

Abstract

In this study, an optimal design for motor-driven track type traveling system applied into high clearance working machineries in orchard is proposed. Tractive performance and hill climbing ability were predicted and evaluated for the optimal motor traveling system by taking into account of soil characteristics in orchard utilizing the high clearance working machineries. Design criteria for tractive performance were based on the traction force calculated from tractive effort subtracted by motion resistance, while hill climbing ability had its design criteria that fulfill the climbing 20% slope ground at a speed of 3km/h. Based on the evaluation results of traction and climbing ability, two DC48V, 4500rpm, 1.6kW AC motors were independently applied to both left and right side of orbits; each motor is designed to transmit power on driving sprocket of track type traveling system via 50:1 reduction gear ratio. The motor-driven track type traveling system developed in the study found to have 396 kgf of tractive force, which is 12.5% higher than climbing resistance at orchard soil having 20% slope ground (352 kgf), demonstrating sufficient tractive performance and hill climbing ability.

이 연구는 과수원에 높은 통관 작업 기계에 적용되는 전동식 트럭 주행 시스템을 적용한 최적 설계가 제안되어 있습니다. 견인 성능과 언덕 등반 능력은 예측 및 기계 작업이 높은 틈새를 이용하여 과수원의 토양 특성을 고려하여 최적의 모터 주행 시스템을 평가 하였다. 견인 성능을 위한 설계 기준은 운동 저항을 뺀 견인력으로부터 산출 된 견인능력에 기초를 두었다. 등판 능력은 20%의 경사면을 3km/h의 속도로 수행되도록 하는 설계기준을 가지고 있다. 견인 및 등판 능력의 평가 결과에 따라 두 개의 DV48V, 4500rpm, 16kW AC 모터는 좌우 양쪽에서 독립적인 괘도를 갖는 것으로 적용된다. 각각의 모터는 50:1 감속기어 비율을 통하여 트랙형 주행 시스템의 구동 스프로켓에 동력을 전달하도록 설계되었다. 본 연구의 전동 트랙형 주행 시스템은 충분한 견인성능 및 등판 능력을 충분히 입증하고 20%의 경사지면을 갖는 과수원의 토양에서의 등반저항보다 12.5%가 더 높은 396kgf의 견인능력을 가지고 있는 것으로 밝혀졌습니다.

Keywords

References

  1. Wong, J. Y. Theory of Ground Vehicles. New York, John Wiley & Sons. 2001.
  2. Wong, J. Y. Terramechanics and off-road vehicles. Elsevier. 1989.
  3. Coering, C. E., Stone, M. L., Smith, D. W. and Turnquist, P. K. Off-road vehicle engineering principles. ASAE Publication 801M0103. 2003.
  4. Park, W. Y and S. S. Lee. Development of a Tractive Performance Prediction Program of Tractors. J. of Biosystems Engineering 37(3)131-139. 2012. https://doi.org/10.5307/JBE.2012.37.3.131
  5. Lee, K. S., D. H. Lee, Y. J. Cho, S. O. Chung, W. Y. Park, K. M. Noh and Y. C. Chang. Development of a Digital Cone Index Measuring Device. J. of Biosystems Engineering 35(6)387-392. 2010. https://doi.org/10.5307/JBE.2010.35.6.387
  6. Kim, Eui-Soo. "Forensic engineering study on assessment of damage to aerial lifter parts." Transactions of the Korean Society of Mechanical Engineers A 34.11 (2010): 1727-1732. https://doi.org/10.3795/KSME-A.2010.34.11.1727
  7. Ryu, B. J., C. R. Lee, and H. S. Kim. "Structural Analysis and Vibration Characteristics of Scaffolding Structures." Transactions of the Korean Society for Noise and Vibration Engineering 19.5 (2009): 491-498. https://doi.org/10.5050/KSNVN.2009.19.5.491
  8. Seo, Seong-Hwa, Jong-Il Weon, and Heung-Sik Woo. "A Study on Reduction of Hazard Conditions on Plant Work of Steel Industry." Journal of the Korea Safety Management and Science 13.4 (2011): 61-69.