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A thrust surface floating gas static pressure bearing

A technology of gas static pressure and thrust surface, which is applied in the field of machinery, can solve problems such as not having a thrust surface, and achieve the effects of reducing the eccentric force of the bearing, wide application range, and large flow

Active Publication Date: 2018-07-17
SHANGHAI QIYUAN GAS DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the patent still does not have a floating thrust face

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  • A thrust surface floating gas static pressure bearing
  • A thrust surface floating gas static pressure bearing
  • A thrust surface floating gas static pressure bearing

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] Embodiments of the present invention will be specifically explained below in conjunction with the accompanying drawings.

[0026] Such as image 3 A thrust surface floating aerostatic bearing according to an embodiment of the present invention shown in , includes a bearing body 4, a ...

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Abstract

The invention discloses a gas static pressure bearing with a floating thrust surface. The gas static pressure bearing comprises a bearing body, a bearing lining, a floating thrust surface body and an elastic plate, wherein the bearing body sleeves the bearing lining; one end of the bearing body is connected with one end of the elastic plate in a sealing manner; the other end of the elastic plate is connected with the floating thrust surface body in the sealing manner; the elastic plate and the floating thrust body are connected with one end, in the axial direction, of the bearing body in sequence; a plurality of gas holes which are communicated in a matched manner are formed in the bearing body, the elastic plate and the floating thrust body; the elastic plate is made of an elastic material. According to the technical scheme, the thrust surface is changed to be in a floating type structure, so that a gas film clearance between the gas bearing and a shaft body is uniform, eccentric force of the bearing is reduced, and the axial bearing capacity of the gas bearing is greatly improved; and therefore, the gas bearing can be used for bearing a high axial load and achieving the high flow and the high rotating speed.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a thrust surface floating gas static pressure bearing applied to a gas bearing. Background technique [0002] Gas bearings have the advantages of low friction, low power consumption, low gas consumption, no pollution, low noise, simple structure and convenient operation, and are widely used in high-speed turbo expanders. Since the gas is continuously exhausted from the outer edge of the bearing into the atmosphere, the gas has no boundary lubrication capability. In high-speed operation, the linear velocity is usually up to 100 m / s. If the load of the gas bearing exceeds the specified value, direct contact with solids will occur immediately and it will be stuck. Therefore, at present, the gas bearing can only be used for turboexpanders with small flow rates. And if figure 1 and figure 2 As shown in , a gas bearing with a fixed thrust surface 10 and an oblique gas hole 11 is gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/06
Inventor 张继兴胡正平俞建
Owner SHANGHAI QIYUAN GAS DEV
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