[ Article ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 5, pp.289-296

ISSN: 2508-5107 (Online)

Print publication date 15 Oct 2023

Received 31 Aug 2023 Revised 27 Sep 2023 Accepted 05 Oct 2023

DOI: https://doi.org/10.7735/ksmte.2023.32.5.289

이뿌리 치형수정을 고려한 e-PGS 피니언의 강도설계

권순만^a^{, *} ; 이용호^b

Strength Design of e-PGS Pinion Considering Dedendum Modification

Soon-man Kwona^a^{, *} ; Yong-ho Lee^b

aSchool of Mechanical Engineering, Changwon National University
bDepartment of Mechanical Design & Manufacturing Engineering, Graduate School, Changwon National University

Correspondence to: ^*Tel.: +82-55-213-3629 E-mail address: smkwon@changwon.ac.kr (Soon-man Kwon).

Abstract

In this study, the gear strength design was conducted, considering dedendum modification to prevent premature tooth contact and minimize unfavorable transmission error for the external pinwheel gear set (e-PGS) system. The distribution of loads of the tooth contact regions was quantified by introducing the load-sharing factor. In addition, the specific sliding, defined as the ratio of the sliding speed to the speed of a transverse profile in the direction tangent to the profile, was analyzed to consider the wear characteristics of the e-PGS pinion. It was confirmed that the increase of the center distance modification coefficient, one of the key design parameters, resulted in reductions in both contact and root bending stresses, as well as the lower specific sliding.

Keywords:

e-PGS(external pinwheel gear set), Dedendum modification, Center distance modification coefficient, Roller diameter coefficient, Specific sliding

Acknowledgments

본 연구는 중소벤처기업부의 기술혁신개발사업의 일환으로 수행하였음. [S3276835, 로봇관절 및 공작기계용 50arcsec급 하이엔드 정밀 감속기 개발].

References

Kwon, S. -M., Park, Y. S., 2020, Strength Design of Slewing Drive Pinion for Ship Unloader, J. Korean Soc. Manuf. Technol. Eng., 29:5 386-392. [https://doi.org/10.7735/ksmte.2020.29.5.386]
Niemann, G., Winter, H., 1983, Maschinen-Elemente Band II: Getriebe Allgemein, Zahnradgetriebe Grundlagen, Stirnradgetriebe, Springer, Berlin, Heidelberg.
Kissling, U., 2010, Effects of Profile Corrections on Peak to Peak Transmission Error, Gear Technology, 27:5 52-61.
Palmer, D., Fish, M., 2012, Evaluation of Methods for Calculating Effects of Tip Relief on Transmission Error, Noise and Stress in Loaded Spur Gears, Gear Technology, 29:1 56-67.
Kwon, S. -M., Shin, H. C., 2016, Estimation of Contact Fatigue Life of a Girth Gear Based on Pinwheel, J. Korean Soc. Manuf. Technol. Eng., 25:4 245-252. [https://doi.org/10.7735/ksmte.2016.25.4.245]
Vullo, V., 2020, Gears - Volume 2: Analysis of Load Carrying Capacity and Strength Design, Springer Nature Switzerland AG, Switzerland.
Kwon, S. -M., 2021, Bending Strength Design of e-PGS Pinion Considering Gear Precision, J. Korean Soc. Manuf. Technol. Eng., 30:6 465-472. [https://doi.org/10.7735/ksmte.2021.30.6.465]
AGMA, 2004, Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear Teeth, ANSI/AGMA 2001-D04, American Gear Manufacturers Association, Virginia.
ISO, 2006, Calculation of Load Capacity Spur and Helical Gears – Part 3: Calculation of Tooth Bending Strength, ISO 6336 – 3:2006, International Organization for Standardization, Geneva.
Linke, H., Börner, J., Heß, R., 2016, Cylindrical Gears: Calculation-Materials-Manufacturing, Carl Hanser Verlag, Munich.
Radzevich, S. P., 2018, Theory of Gearing: Kinematics, Geometry, and Synthesis, 2nd Edition, CRC Press, Boca Raton, Florida.
Gear Solution Magazine, 2012, International Calculation Method for Micropitting, Gear Solutions <https://gearsolutions.com/features/international-calculation-method-for-micropitting/, >.
Meneghetti, G., Terrin, A., Giacometti, S., 2016, A Twin Disc Test Rig for Contact Fatigue Characterization of Gear Materials, Procedia Structural Integrity, 2 3185-3193. [https://doi.org/10.1016/j.prostr.2016.06.397]
Morales-Espejel, G. E., Rycerz, P., Kadiric, A., 2018, Prediction of Micropitting Damage in Gear Teeth Contacts Considering the Concurrent Effects of Surface Fatigue and Mild Wear, Wear, 398-399 99-115. [https://doi.org/10.1016/j.wear.2017.11.016]

Soon-man Kwon

Full Professor in the School of Mechanical Engineering, Changwon National University. His research interests are Pin Gearing and Speed Reducer.

E-mail: smkwon@changwon.ac.kr

Yong-ho Lee

Ph.D. Student in the Department of Mechanical Design and Manufacturing Engineering, Changwon National University. His research interest is Pin Gear Drive Unit.

E-mail: yonghowave@changwon.ac.kr