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Lubrication performance analysis of multi-groove sleeve bearing considering journal misalignment

Lili Wang (College of Mechanical and Electronic Engineering, Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology, Qingdao, China)
Mengxue He (College of Mechanical and Electronic Engineering, Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology, Qingdao, China)
Min Wang (College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao, China)
Yuliang Wei (College of Mechanical and Electronic Engineering, Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology, Qingdao, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 7 May 2021

Issue publication date: 2 June 2021

141

Abstract

Purpose

Under the influence of loading, manufacturing, installation and other factors, the axis of sleeve bearing and journal will not be aligned, which will have a great impact on running stability and life of bearing. The existence of oil groove can effectively improve the life of sleeve bearing and working efficiency. The lubrication performance of two and three grooves sleeve bearing considering journal misalignment is analyzed.

Design/methodology/approach

To solve the difference of discontinuous position of oil film thickness, it is necessary to use the flow balance relationship in the finite control space, and oil film thickness equation of multi-groove sleeve bearing considering journal misalignment is gained.

Findings

The friction and bearing capacity of journal bearing with oil groove increase with the increase of journal inclination angle. At the same journal inclination angle, the bearing capacity of two-axial groove journal bearing is larger than that of three-axial groove journal bearing, but the friction of two-axial groove journal bearing shows the trend of the first bigger and then smaller than that of three-axial groove journal bearing.

Originality/value

The research has great significance to optimize bearing lubrication performance and increase bearing working life.

Keywords

Acknowledgements

This work was supported by the Fundamental Research Funds for the Central Universities, China University of Petroleum (19CX02026A), Shandong Provincial Postdoctoral Innovation Foundation (No. 201701016), Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology (2019KLMM208) and Study Broad Fund Sponsored by Shandong Province Government and Shandong University of Science and Technology.

Citation

Wang, L., He, M., Wang, M. and Wei, Y. (2021), "Lubrication performance analysis of multi-groove sleeve bearing considering journal misalignment", Industrial Lubrication and Tribology, Vol. 73 No. 4, pp. 588-598. https://doi.org/10.1108/ILT-09-2019-0393

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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