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A Bionic Active Hydrostatic Gas Bearing

A static pressure gas bearing, active technology, applied in the direction of air cushion bearings, bearings, shafts and bearings, to achieve the effect of high stiffness adjustable and high stiffness

Active Publication Date: 2022-03-29
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have their own disadvantages

Method used

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  • A Bionic Active Hydrostatic Gas Bearing
  • A Bionic Active Hydrostatic Gas Bearing
  • A Bionic Active Hydrostatic Gas Bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0046] In this Example 2, as in the basic configuration of the first embodiment, different is that the imitation gas flow regulator is no longer covered with the bearing end, but a separate composition. The imitation gas flow regulator is bonded to the airway wall surface by sealant, and there is a gas supply passage on the bearing end to the bionic airflow regulator to achieve gas supply. Independent imitation gas flow regulator top view Figure 5 As shown, the overall bearing structure is like Figure 4 Indicated.

Embodiment 3

[0048] In the present embodiment 3, as in the basic configuration of the first embodiment, the bearing end surface is arranged with a throttle, such as Image 6 Indicated.

Embodiment 4

[0050] In this Example 4, as in the basic structure of the first embodiment, the bearing end faces have four throttle, such as Figure 7 Indicated.

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Abstract

The invention discloses a bionic active static pressure gas bearing. The bearing is composed of an end cover and a bearing body, the two are connected by screws, and sealant is applied on the connection surface for sealing. The lower side of the end cover is equipped with a bionic airflow regulator. The bearing body is equipped with an air channel, a small hole restrictor, a small hole restrictor, the air outlet end, and a pressure equalization chamber. The air source passes through the air supply channel to the inside of the pleated air bag with high-compressed air. Radial expansion / contraction, through the active control of the intake air volume, the degree of expansion / contraction of the regulator can be controlled, so as to realize the change of the throttle area, and then use the change of the throttle area to directly control the carrying capacity, and change the stiffness in real time with the The change curve of the air film thickness makes the bearing always work near the maximum stiffness in the entire range of the change range of the air film thickness, so as to achieve the wide-area high stiffness effect.

Description

[Technical field] [0001] The present invention relates to the field of static pressure gas bearing, in particular, to a bionic active static pressure gas bearing. 【Background technique】 [0002] Static pressure gas bearings have a wide range of important applications in high speed, light load, precision and superficial processing, due to its near-zero friction, non-feasible characteristics. In addition, the static pressure gas bearing is also considered to be an important machine for semiconductor processing equipment and nuclear power generation equipment. The bearing stiffness is an important performance index of the static pressure gas bearing, but also the key to ensuring the bearing precision and accuracy. However, the stiffness of the gas bearing is lower to a certain extent, which limits the promotion and application of static pressure gas bearings. At present, the stiffness of improving gas static pressure bearing can be achieved by increasing supply of gas supply pressur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/06
CPCF16C32/0603F16C32/0622
Inventor 李文俊宁骁杰冯凯张英杰侯玮杰
Owner HUNAN UNIV