Improvement of thermal EHL by selecting bush-pin geometry based on an investigation for industrial chains
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 18 January 2021
Issue publication date: 4 March 2021
Abstract
Purpose
This study aims to investigate the influence of geometry of bush-pin pair from a perspective of optimal lubrication through a thermal elastohydrodynamic lubrication model for finite line contact.
Design/methodology/approach
A constitutive equation: Ree-Eyring fluid is used in the calculations. The real chain sizes, i.e. equivalent radius of curvature, bush length, length of the rounded corner area and rounded corner radius, are jointed investigated. Moreover, the effects of the length of the rounded corner area and the radius of rounded corner are investigated.
Findings
It is found that the current standard of the chain might not consider the importance of lubrication, and the lubrication state can be improved effectively by choosing an optimal radius of rounded corner and the length of the corner area.
Originality/value
By optimally selecting sizes, the occurrence of high pressure, high temperature rise and near zero film thickness at the ends of bush, especially under heavier load, can be effectively avoided.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2020-0031/
Keywords
Acknowledgements
This study is supported by National Natural Science Foundation of China through grant No. 51875298 and Natural Science Foundation of Shandong Province No. ZR2019MEE040.
Citation
Zhang, M., Wang, J., Yang, P., Liu, Y., Shang, Z. and Dai, L. (2021), "Improvement of thermal EHL by selecting bush-pin geometry based on an investigation for industrial chains", Industrial Lubrication and Tribology, Vol. 73 No. 2, pp. 358-365. https://doi.org/10.1108/ILT-01-2020-0031
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited