Novel oil–air distributor design and study on the viscosity properties of its oil spraying
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 21 September 2022
Issue publication date: 25 October 2022
Abstract
Purpose
The purpose of this paper is to design the novel oil–air distributor (N-OAD). Its structure design, oil feeding reliability, service life and viscosity properties of air bubble (AB) oil were analyzed. Meanwhile, the formation mechanism of AB oil was established based on Kelvin–Helmholtz instability.
Design/methodology/approach
First, oil–air distributor (OAD) and N-OAD were randomly selected for testing when the air pressure was 0.25 MPa and oil feeding was 100 times per hour. Then, the bubbles were found in the lubricant during the experiment, and the void fraction and viscosity properties of AB oil were tested by image processing method and the MARS 40 rheometer, respectively.
Findings
N-OAD has longer service life and higher working reliability than OAD. The key factors of AB oil formation were air pressure and oil feeding. And the void fraction of AB oil has different results on the viscosity at high and low shear rates.
Originality/value
The outcome of this research paper gives an insight to improve the reliability of oil–air lubrication systems and the safety factor of machine tool spindle operation.
Keywords
Acknowledgements
Opening Project of National and local joint Engineering Research Center for industrial friction and lubrication technology (2021-GD-0003)
Citation
Zhang, W., Huang, H., Gao, G. and Xie, X. (2022), "Novel oil–air distributor design and study on the viscosity properties of its oil spraying", Industrial Lubrication and Tribology, Vol. 74 No. 10, pp. 1186-1192. https://doi.org/10.1108/ILT-05-2022-0156
Publisher
:Emerald Publishing Limited
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