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Volume 19, Issue 4
  • ISSN: 1872-2121
  • E-ISSN: 2212-4047
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Abstract

Background

Heavy-duty hydrostatic bearings of the original parallel friction pair are prone to hydrostatic loss problems during operation.

Aims

The aim is to solve the problem of lubrication failure, the original hydrostatic oil pad was designed as a micro-inclined plane, and the dynamic pressure caused by the micro-wedge of the oil pad at a higher speed was used to compensate for the static pressure loss of the bearing.

Objective

This study aims at a new type of q1-205 micro bevel double rectangular cavity hydrostatic bearing.

Methods

The mathematical model of oil film theoretical analysis of hydrostatic bearing with the micro-inclined surface was established, including the flow equation of a double rectangular cavity with a micro-inclined surface and static and dynamic bearing capacity equation.

Results

In this patent paper, the mechanical properties of oil film with tilt height between 0 and 0.1mm were simulated with variable viscosity, and the distribution law of pressure field under different working conditions was obtained. Through the experimental study, the pressure data of parallel flat pads and tilting pads under different working conditions are measured and compared with the simulation data.

Conclusion

The pressure loss value of the Δh ≈ 70 oil pad designed in this paper is relatively small under extreme working conditions. The overall loss rate is about 10% ~ 20%, and the dynamic pressure compensation rate is about 16%. The dynamic pressure generated by the slight inclination Angle can well compensate for the static pressure loss.

© 2025 Bentham Science Publishers
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2024-09-30
2025-01-18

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/content/journals/eng/10.2174/1872212118666230224121459
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Mechanical Performance Analysis of Hydrostatic Thrust Bearing under Microbevel Parameters
Recent Pat Eng 19, E240223214025 (2025); https://doi.org/10.2174/1872212118666230224121459
/content/journals/eng/10.2174/1872212118666230224121459
/content/journals/eng/10.2174/1872212118666230224121459
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  • Article Type:     Research Article
Keyword(s): dynamic pressure performance; Hydrostatic thrust bearing; micro-bevel double rectangular cavity; static pressure; variable viscosity; wedge height

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