Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Effects of Bearing Characteristic on the Gear Load Distribution in the Slewing Reducer for Excavator

굴삭기용 선회감속기의 베어링 특성이 기어 하중 분포에 미치는 영향 분석

  • Kim, Jeong-Gil (Department of System Reliablity, Korean Institute of Machinery & Materials) ;
  • Park, Young-Jun (Department of System Reliablity, Korean Institute of Machinery & Materials) ;
  • Lee, Geun-Ho (Department of System Reliablity, Korean Institute of Machinery & Materials) ;
  • Kim, Jae-Hoon (Chungnam National University)
  • 김정길 (한국기계연구원 시스템신뢰성연구실) ;
  • 박영준 (한국기계연구원 시스템신뢰성연구실) ;
  • 이근호 (한국기계연구원 시스템신뢰성연구실) ;
  • 김재훈 (충남대학교 기계설계학과)
  • Received : 2014.09.29
  • Accepted : 2014.10.09
  • Published : 2014.10.31
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Abstract

A slewing reducer consists of two planetary gearsets which require a good load distribution over the gear tooth flank for enhanced durability. This work investigates how the bearing characteristics influence the load distribution over the gear tooth flank. A complete system model is developed to analyze a slewing reducer, including the non-linear mesh stiffness of the gears and the non-linear stiffness of bearings. The results indicate that the type, arrangement and preload of the output shaft bearings greatly influence the gear mesh misalignment, contact pattern, face load factor, gear safety factor and lifetimes of the parts.

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References

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