Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Safety Factor Analysis of Range-Shift on Multi-Purpose Agricultural Implement Machinery

다목적 농작업 기계 변속기 부변속 안전율 분석

  • Moon, Seok Pyo (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Baek, Seung Min (Department of Smart Agriculture System, Chungnam National University) ;
  • Lee, Nam Gyu (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Park, Seong Un (Reliability Test Team, TYM ICT Co. Ltd.) ;
  • Choi, Young Soo (Department of Rural and Biosystems Engineering, Chonnam National University) ;
  • Choi, Chang Hyun (Department of Bio-Mechatronics Engineering, Sungkyunkwan University) ;
  • Kim, Yong Joo (Department of Biosystems Machinery Engineering, Chungnam National University)
  • Received : 2020.11.02
  • Accepted : 2020.11.13
  • Published : 2020.12.01
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Abstract

The aim of this study was to analyze the safety factor of range-shift gear pairs on multi-purpose agricultural implement machinery for an optimal design of a transmission system. Gear-strengths such as bending and contact stress and safety factors were analyzed under three load conditions: an equivalent engine torque at plow tillage, a rated engine torque, and the maximum engine torque. Root and contact safety factor were calculated to be 3.88, 5.14, 2.24, 2.11, 2.21, 0.99 and 0.78, 0.94, 0.65, 0.68, 0.84, 0.85, respectively, under equivalent engine torque condition at the plow tillage. The root and contact safety factor were calculated to be 1.91, 2.53, 1.10, 1.04, 1.07, 0.48 and 0.55, 0.66, 0.46, 0.48, 0.59, 0.59, respectively, under rated engine torque condition. The root and contact safety factor were calculated to be 1.60, 2.11, 0.92, 0.87, 0.90, 0.40 and 0.51, 0.61, 0.42, 0.44, 0.54, 0.54, respectively, under the maximum engine torque condition. The multi-purpose agricultural implement machinery could be conducted under plow tillage operation. However, gear specifications for tooth surface need modification because the gear surface would be broken at all driving conditions as safety factors are lower than 1.

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Acknowledgement

본 논문은 2019년 충남대학교 해외파견 연구비 지원에 의한 결과입니다.

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