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Aerodynamic bearing, compressor and engine

A technology of gas dynamic pressure bearing and compressor, which is applied in the fields of compressors, engines and gas dynamic pressure bearings. It can solve the problems of insufficient overall rigidity, poor running stability, and low bearing capacity of bearings, so as to improve the overall load carrying capacity and increase the use of The effect of longevity

Active Publication Date: 2022-03-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, in the actual working process, the thickness of the aerodynamic pressure bearing is limited, so the damping is small and the overall rigidity is insufficient, which easily leads to low bearing capacity and poor operation Poor stability

Method used

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  • Aerodynamic bearing, compressor and engine
  • Aerodynamic bearing, compressor and engine
  • Aerodynamic bearing, compressor and engine

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Embodiment Construction

[0026] see in conjunction Figure 1 to Figure 5 As shown, according to the embodiment of the application, the gas dynamic pressure bearing includes a bearing seat 1, a T-shaped corrugated foil, a T-shaped flat foil 2, a U-shaped corrugated foil 3 and a top layer of flat foil 4, a T-shaped corrugated foil, a T-shaped flat foil 2 and U-shaped corrugated foil 3 are arranged between the inner ring of the bearing housing 1 and the outer ring of the top flat foil 4, the T-shaped corrugated foil is set in two layers, and the T-shaped flat foil 2 is located between two layers of T-shaped corrugated foils. Along the axial direction of the bearing seat 1 , the protrusion 5 of the T-shaped corrugated foil is located in the U-shaped groove of the U-shaped corrugated foil 3 .

[0027] The aerodynamic pressure bearing uses T-shaped corrugated foils, T-shaped flat foils 2, and U-shaped corrugated foils 3 to form a double-layer support in the radial direction and a three-stage support in the ...

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Abstract

The invention provides a gas dynamic pressure bearing, a compressor and an engine. The gas dynamic pressure bearing comprises a bearing seat (1), T-shaped bump foils, T-shaped flat foils (2), U-shaped bump foils (3) and top-layer flat foils (4), the T-shaped bump foils, the T-shaped flat foils (2) and the U-shaped bump foils (3) are arranged between an inner ring of the bearing seat (1) and an outer ring of the top-layer flat foils (4), the T-shaped bump foils are divided into two layers, the T-shaped flat foils (2) are located between the two layers of T-shaped bump foils, and the top-layer flat foils (4) are arranged along the axial direction of the bearing seat (1). And the protruding part (5) of the T-shaped bump foil is positioned in the U-shaped groove of the U-shaped bump foil (3). According to the gas dynamic pressure bearing, the damping of the bearing can be increased, the overall rigidity of the bearing is improved, and the bearing performance of the bearing is improved.

Description

technical field [0001] The present application relates to the technical field of bearings, in particular to an aerodynamic pressure bearing, a compressor and an engine. Background technique [0002] The gas dynamic pressure bearing is a dynamic pressure gas bearing with elastic support. The high-speed rotation of the rotating shaft drives the gas flow between the bearing and the rotating shaft. The viscous gas enters the wedge-shaped area to generate a hydrodynamic pressure effect and form a high-pressure gas film. When it is large, it can suspend the rotating shaft rotating at high speed. When the rotating shaft rotates at high speed, the high-pressure air film squeezes the bearing, and both the top layer foil and the supporting corrugated foil produce elastic deformation, which increases the air film gap and ensures the stable operation of the bearing. [0003] However, in the actual working process, the thickness of the aerodynamic pressure bearing is limited, so the dam...

Claims

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Application Information

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IPC IPC(8): F16C17/02F16C17/24F16C33/10F16C35/02F04B39/00
CPCF16C17/024F16C17/243F16C33/1095F16C35/02F04B39/00F16C2360/00F16C2380/26
Inventor 贾金信孔祥茹苏久展陈振闫瑾
Owner GREE ELECTRIC APPLIANCES INC