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논문 기본 정보

자료유형
학술저널
저자정보
Seung-Min Baek (Chungnam National University) Wan-Soo Kim (Chungnam National University) Yeon-Soo Kim (Chungnam National University) Nam-Gyu Lee (Chungnam National University) Nam-Hyeok Kim (Kukje Machinery) Yong-Joo Kim (Chungnam National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.47 No.2
발행연도
2020.6
수록면
327 - 335 (9page)

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초록· 키워드

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The purpose of this study was to analyze the load distribution and contact safety factor for the power take off (PTO) gear of a 71 kW class agricultural tractor. In this study, a simulation model of the PTO gear-train was developed using Romax DESGINER. The face load factor and contact safety factor were calculated using ISO 6336:2006. The simulation time was set at 2,736 hours considering the lifetime of the tractor, and the simulation was performed for each PTO gear stage at the engine rated power conditions. As a result of the simulation, the face load factors for the driving gear at the PTO 1<SUP>st</SUP>, 2<SUP>nd</SUP> and 3<SUP>rd</SUP> stages were 1.644, 1.632, and 1.341, respectively. The contact safety factors for the driving gear at the PTO 1<SUP>st</SUP>, 2<SUP>nd</SUP> and 3<SUP>rd</SUP> stages were 1.185, 1.216, and 1.458, respectively. As the PTO gear stage was increased, the face load factor decreased, and the contact safety factor increased. The load distributions for all the PTO gears were concentrated to the right of the tooth width. This causes stress concentrations and shortens the lifespan of the gears. Therefore, it is necessary to improve the face load factor and the contact safety factor with macro-geometry and micro-geometry.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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