Static pressure type radial gas bearing structure

Abstract

The invention discloses a static pressure type radial gas bearing structure. The static pressure type radial gas bearing structure mainly consists of components such as a fixing bearing seat, metal rubber, bearing bushes and bearing bush baffles, wherein the fixing bearing seat adopts a circular ring design, and achieves a fixing effect on the bearing bushes and the metal rubber; and an annular high-pressure gas cavity is formed inside the fixing bearing seat, anti-rotation grooves extend on the inner surface in the axial direction, and the bearing bush baffles are fixedly arranged at the endsurfaces of the two ends. Each bearing bush is processed and manufactured by carbon-graphite alloy materials, anti-rotation grooves are formed in the outer surface in the axial direction, and annulargrooves are designed at the end surfaces of the two ends of the bearing bush and are used for installing a meal sealing ring. The meal sealing ring is arranged between the bearing seat and the bearingbushes, and is provided with position limiting bulges corresponding to the anti-rotation grooves of the fixing bearing seat and the bearing bushes. The bearing bush baffles are arranged at the fixingbearing seat, form a sealing surface by cooperating with the end surfaces of the two ends of the bearing bushes, and are used for sealing of high-pressure gas supply of a bearing.

Description

technical field [0001] The invention belongs to the technical field of gas bearings, and relates to a radial gas bearing, in particular to a static pressure type radial gas bearing structure. Through its overall structural layout, the support stiffness and damping of the gas bearing can be effectively improved, and the gas bearing can be widened. The use environment; by using metal rubber for support, the application range of the bearing is expanded. The bearing can be used in high temperature and corrosive environments. The metal rubber adopts metal materials with different physical parameters, different winding methods, and is pressed by different pressing forces. It can effectively adjust the stiffness and damping characteristics of the bearing support structure, and improve the running stability of the rotor. Background technique [0002] Gas bearings have the advantages of "lightweight, clean, and smooth operation", and are widely used in national defense, energy, machi...

AI Technical Summary

Problems solved by technology

The main problem is that the rubber "O" ring is made of organic rubber, which will cause aging failure when working in a high temperature (>200°C) and corrosive environment, which will affect the material properties of the "O" ring, thus Affect the stability of rotor dynamics, cause rotor vibration instability, and affect the safety and stability of equipment

In addition, the support stiffness and damping adjustment range of the "O" ring is small, which cannot effectively adjust the dynamic characteristics of the shaft system.

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