Analysis of the Oil Film in the Fluid-Static Pressure Spindle of a High-Speed Gear Shaping Machine Based on Fluid-Structure-Thermal Coupling

Zecheng Wang

doi:10.62051/ijmee.v7n3.09

Authors

Zecheng Wang

DOI:

https://doi.org/10.62051/ijmee.v7n3.09

Keywords:

High-speed Gear Shaping Machine, Hydrostatic Spindle, Oil Film Stiffness, Oil Film Temperature Rise, Thermal Deformation

Abstract

The optimisation of liquid hydrostatic spindle structural configurations and parameters constitutes a primary factor influencing the load-bearing capacity, oil film stiffness, and fluid temperature rise during high-speed cutting operations in gear shaping machines. To achieve high rigidity and precision while mitigating friction-induced temperature rise, advanced research is required into the influence of lubricant viscosity-temperature characteristics on the oil film properties of fluid dynamic spindles. Specifically, high-speed gear shaping machines exhibit an eccentric oil film effect in fluid dynamic bearings during high-speed cutting operations. Consequently, accurately investigating the motion patterns and characteristics of the radial surface in liquid-static spindles during practical theoretical design and engineering trials, while accounting for the impact of fluid temperature rise on cutting precision, remains a persistent research challenge.

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