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research-article

Analysis of thermal characteristic of spur/helical gear transmission

[+] Author and Article Information
Wei Li

School of Mechanical Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
liwei@me.ustb.edu.cn

Pengfei Zhai

School of Mechanical Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
zhai041312@126.com

lei ding

School of Mechanical Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
dingleidl000@126.com

1Corresponding author.

ASME doi:10.1115/1.4041597 History: Received May 23, 2018; Revised September 18, 2018

Abstract

Gear drives are widely used in mechanical driving devices, and the heating problem of gear has been paid much attention. The tooth surface temperature field of spur/helical gear are compared and thermal characteristic of spur/helical gear are studied in this paper. The calculation formula of frictional heat flux and convective heat transfer coefficient which considers different surfaces of gear tooth are derived. The frictional heat flux of the helical gear is different from that of the spur gear, and the calculation method is different. This is because the helical gear has a helix angle, and its frictional heat flux is distributed along the helix angle. The finite element parametric model for thermal analysis are built and it realizes the automatic parametric modeling, loading and generation of temperature field by APDL program. The influence of different parameters on gear temperature rise is analyzed and the distribution of the three-dimensional temperature field of spur/helical is obtained. The simulation analysis and experiment are compared to validate the accuracy of thermal analysis results. The research result reveal the distribution law of the three-dimensional temperature field of spur/helical gear transmission at different working parameters. It provides theoretical guidance for gear anti-scuffing capability and gear optimization design.

Copyright (c) 2018 by ASME
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