Research on optimization of spindle bearing preload based on the efficiency coefficient method
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 24 November 2020
Issue publication date: 4 March 2021
Abstract
Purpose
The purpose of this paper is to research on optimization of spindle bearing preload based on efficiency coefficient method and provide theoretical guidance for variable preload of intelligent spindle.
Design/methodology/approach
Based on an established thermo-mechanical coupling model of angular contact ball bearing with fix-position preload, temperature rise and axial stiffness of the bearing at different speeds and preload are analyzed, and life of the bearing is estimated by the improved L-P theory. The bearing temperature rise, axial stiffness and life data are standardized, and the preload is optimized by the efficiency coefficient method according to the requirements of operating conditions.
Findings
The optimized preload meets comprehensive requirements of the bearing temperature rise, axial stiffness and life under different operating conditions.
Originality/value
In the past studies, it is rarely reported that temperature rise, stiffness and life of the bearing under thermo-mechanical coupling effect are used as objective functions to optimize preload at different speeds.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-06-2020-0205/
Keywords
Acknowledgements
This research is financially supported by the National Natural Science Foundation of China (51775432) and key scientific and technological projects of Henan Province (202102210279).
Citation
He, P., Gao, F., Li, Y., Wu, W. and Zhang, D. (2021), "Research on optimization of spindle bearing preload based on the efficiency coefficient method", Industrial Lubrication and Tribology, Vol. 73 No. 2, pp. 335-341. https://doi.org/10.1108/ILT-06-2020-0205
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited