A Dynamic and Static Hybrid Tilting Pad Radial Gas Bearing

Abstract

The invention discloses a dynamic and static pressure hybrid tilting pad radial gas bearing, which mainly consists of an integrated tilting pad radial gas bearing body, a porous tile surface, a porous tile surface clamping plate, a compressible gasket, an air intake pipe, Composed of a conical cap, the tilting pad of the integrated tilting pad radial gas bearing body is provided with a groove structure in the axial direction, the porous pad surface adopts a shoulder structure, and is embedded in the radial direction of the tilting pad. In the groove structure of the gas bearing body, a circumferential positioning clamp is formed, and it is closely attached to the inner wall of the one-piece tilting pad radial gas bearing body by coaxial glue, and is clamped on the board through the porous tile surface. The flange structure performs axial clamping to form axial positioning clamping. The invention can effectively improve the stability of the bearing, avoid the direct contact friction between the journal and the bearing surface, reduce the wear of the bearing bush, have better heat dissipation of the bearing, uniform temperature distribution of the bearing, smaller temperature rise, and ease the problem of thermal expansion.

Description

technical field [0001] The invention relates to the technical field of air bearings, in particular to a dynamic and static pressure hybrid tilting pad radial gas bearing. Background technique [0002] Aerostatic bearings use gas as a lubricant for sliding bearings. The gas is forcibly pumped into the gap between the bearing and the shaft through an external pressurized gas source to form an air film to balance the external load. The friction pair of the aerostatic bearing is separated by the pressure gas film during the start-up and operation, and there is no direct contact between the shaft and the bearing to generate friction. The friction force only comes from the viscosity of the gas, so the friction force is small, and the service life is long without friction and wear. ; The hydrostatic bearing has the effect of homogenizing the error, which can effectively reduce the influence of the error in the bearing processing and assembly process, so the aerostatic bearing has h...

AI Technical Summary

Problems solved by technology

However, during the start and stop process of the dynamic pressure bearing, the journal and the bearing surface are in direct contact with friction, which is prone to friction and wear; the problem of uneven temperature distribution of the bearing and thermal expansion is more serious than that of the static pressure bearing

Images