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트랜스퍼 감속기용 구동기어의 최적 설계에 관한 연구

A Study on the Optimal Design of Drive Gear for Transfer Gearbox

Journal of the Korean Society for Precision Engineering 2019;36(2):121-126.
Published online: February 1, 2019

1 경상대학교 대학원 기계항공공학부, 항공연

2 경상대학교 대학원 융합기계공학과

3 ㈜금화테크 기술연구소

1 School of Mechanical & Aerospace Engineering, ReCAPT, Gyeongsang National University

2 Department of Convergence Mechanical Engineering, Gyeongsang National University

3 R&D Center, Gyeumhwa Technology Co., Ltd.

#Email: sklyu@gnu.ac.kr, TEL: +82-55-772-1632
• Received: December 1, 2018   • Revised: December 12, 2018   • Accepted: December 19, 2018

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Study on the Modification of the Contact Pattern and Teeth Shape of Tapping Device Drive Gears
    Sung-Min Moon, Yong-Woo Park, Do-Young Lee, Sung-Ki Lyu
    Journal of the Korean Society of Manufacturing Process Engineers.2025; 24(9): 76.     CrossRef

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A Study on the Optimal Design of Drive Gear for Transfer Gearbox
J. Korean Soc. Precis. Eng.. 2019;36(2):121-126.   Published online February 1, 2019
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J. Korean Soc. Precis. Eng.. 2019;36(2):121-126.   Published online February 1, 2019
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A Study on the Optimal Design of Drive Gear for Transfer Gearbox
Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 3D modeling of helical drive gear set
Fig. 2 Gear meshing of helical drive gear set
Fig. 3 Safety factor of drive gear set
Fig. 4 Gear modification types
Fig. 5 Load distribution on meshing gear surface before micro geometry modification
Fig. 6 Gear flank form after modification
Fig. 7 Load distribution on meshing gear surface after micro geometry modification
Fig. 8 Helical gear product
Fig. 9 Result of profile error left & right
Fig. 10 Result of lead error left & right
Fig. 11 Result of pitch error left & right
Fig. 12 Result of runout error
A Study on the Optimal Design of Drive Gear for Transfer Gearbox

Helical gear materials

Name SCM420H
Young’s modulus (MPa) 200000
Tensile strength (MPa) 650-880
Elongation (%) 41876
Fatigue (MPa) 275
Yield strength (MPa) 350
Thermal expansion (e-6/K) 41922
Thermal conductivity (W/m.K) 25
Specific heat (J/kg.K) 460
Melting temperature (oC) 1450-1510
Density (kg/m3) 7700
Resistivity (Ohm.mm2/m) 0.55
Table 1 Helical gear materials