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Thrust bearing, compressor and air conditioner

A thrust bearing and axial technology, which is applied in the field of compressors, can solve the problems of unstable operation of the compressor, the inability of the gas film force to balance with the axial force, etc., to improve energy utilization, improve dynamic pressure performance, and increase bearing capacity Effect

Pending Publication Date: 2020-11-03
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, in the related art, when the gas supply pressure is constant, the magnitude of the gas film force between the gas static pressure thrust bear

Method used

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  • Thrust bearing, compressor and air conditioner
  • Thrust bearing, compressor and air conditioner
  • Thrust bearing, compressor and air conditioner

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Embodiment Construction

[0028] Combine below Figure 1 ~ Figure 3 The technical solution provided by the present invention is described in more detail.

[0029] see figure 1 , some embodiments of the present invention provide a thrust bearing, including a housing 1 and a restrictor 2 .

[0030] The casing 1 mainly plays the role of fixing the restrictor 2 and providing an air supply channel for the restrictor 2 . The housing 1 has a through hole 11, and the through hole 11 of the housing 1 is provided with an inner concave portion 12 along one axial surface, and the bottom of the inner concave portion 12 is provided with a vent hole through the axial direction of the housing 1 13. The casing 1 is used to provide support, and the casing 1 is disc-shaped. A through hole 11 is provided in the middle of the housing 1, and the through hole 11 is used to pass through the rotating shaft of the compressor. One side surface of the casing 1 is provided with an inner concave portion 12 sunken inward, and t...

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Abstract

The invention discloses a thrust bearing, a compressor and an air conditioner, relates to the field of compressors, and aims to improve the dynamic pressure performance of the thrust bearing. The thrust bearing includes a shell and throttlers. The shell is provided with a penetrating through hole, inwards-concave parts are arranged on the surface of one side, in the axial direction, of the throughhole of the shell, and vent holes penetrating through the shell in the axial direction are formed in the bottoms of the inwards-concave parts. The throttlers are fixed in the inwards-concave parts, and first areas are arranged on the sides, away from the bottoms of the inwards-concave parts, of the throttlers; and the first areas are configured to form gas films with the variable thicknesses. According to the thrust bearing provided by the technical scheme, the dynamic pressure performance of the thrust bearing is improved, the bearing capacity of the thrust bearing is increased, and the impact resistance of the thrust bearing is enhanced.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a thrust bearing, a compressor and an air conditioner. Background technique [0002] The compressor consists of an aerostatic thrust bearing and a thrust plate, which are fitted together. The aerostatic thrust bearing uses gas as the lubricating medium, and the high-pressure gas flows into the thrust bearing after passing through the restrictor. The gas forms a gas film with a certain pressure distribution between the thrust bearing and the thrust plate, generating a gas film force for balancing the axial force. [0003] In the related art, the aerostatic thrust bearing is provided with a restrictor on the surface of the thrust bearing. Restrictors include slit restrictors, small hole restrictors and porous restrictors. [0004] The inventors have found that there are at least the following problems in the prior art: the bearing capacity of the gas static pressure thrust bearing is ...

Claims

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Application Information

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IPC IPC(8): F04D29/057F04D29/02F04D29/063
CPCF04D29/023F04D29/057F04D29/063
Inventor 张治平钟瑞兴陈玉辉
Owner GREE ELECTRIC APPLIANCES INC
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