Static and dynamic performance design method of closed high-speed water lubrication dynamic pressure spiral groove thrust bearing

Abstract

The invention provides a static and dynamic performance design method of a closed high-speed water lubrication dynamic pressure spiral groove thrust bearing, which comprises the following steps of establishing a closed high-speed water lubrication dynamic pressure spiral groove thrust bearing lubrication model by considering the coupling effect of multiple factors such as cavitation effect, centrifugal effect, turbulence effect, heat effect and the like, and analyzing and calculating the static and dynamic performances of the closed high-speed water lubrication dynamic pressure spiral groove thrust bearing. A static and dynamic performance design of a closed high-speed water lubrication dynamic pressure spiral groove thrust bearing is achieved, so as to obtain bearing capacity and axial rigidity as large as possible and always keep forward flow. By the adoption of the static and dynamic performance design method for the closed high-speed water lubrication dynamic pressure spiral groovethrust bearing, the static and dynamic performance design precision of the bearing can be greatly improved, the research and development period is shortened, and an effective way is provided for performance analysis and engineering design of the bearing.

Description

technical field [0001] The invention relates to the technical field of sliding bearing performance design, in particular to a static and dynamic performance design method of a closed high-speed water-lubricated dynamic pressure spiral groove thrust bearing. Background technique [0002] Closed water-lubricated dynamic pressure spiral groove thrust bearings rely on the rotation of the main shaft to independently form a dynamic pressure fluid film, which can bear both bidirectional axial loads and overturning moments. It has a series of very prominent technical advantages, such as: simple structure, Low cost, large bearing capacity, low friction power consumption, and automatic pumping function, it is expected to be a new type of support bearing for high-speed precision machine tool spindles, and has broad engineering application prospects. [0003] Under high-speed working conditions, a series of phenomena will appear in water-lubricated dynamic pressure spiral groove thrust ...

AI Technical Summary

Problems solved by technology

[0004] The existing lubrication theory of dynamic pressure spiral groove thrust bearings is mainly established for the oil (or gas) lubrication of light-loaded and small-sized bearings, which cannot accurately describe the dynamic behavior of high-speed water-lubricated dynamic pressure spiral groove thrust bearings. Low, not suitable for static and dynamic performance design of this type of bearing

Images