Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Planet Bearing Design of Slewing Planetary Gearbox

선회용 유성 기어박스의 유성기어 베어링 설계

  • 박영준 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 이근호 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 송진섭 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 남용윤 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 박성하 ((주)삼양감속기 기술연구소)
  • Received : 2011.10.17
  • Accepted : 2011.11.14
  • Published : 2012.04.15
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Abstract

In order to meet the service life of planetary gearbox, a planet bearing, well known as the component with the highest failure rate, is designed. To predict the bearing fatigue life, ISO standard(ISO/TS 16281) is used, and the design parameters of the bearing are optimized using a parametric method. The whole planetary gearbox model is developed using a commercial software to calculate loads acting on planet bearings accurately. The results state that the designed bearings are satisfied with the life of 15,000hours, and the bearings that consist of 22rollers of 58mm have 1.6times longer life and better load sharing relatively than 22rollers of 28.5mm. Also, the increase in preload of taper roller bearings on the output pinion shaft prolongs the life of planet bearings regardless of roller's length.

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References

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