Gas bearing gas supply device and motor

Abstract

The invention relates to a gas bearing gas supply device, and belongs to the field of power machinery. The device includes a passage disposed within a rotatable member, the passage communicates with the gas bearing and a supply source. By the adoption of the embodiment, the requirement for the pressure of the supply source for supplying gas to the gas bearing is lowered, in other words, the requirement for an external refrigerant pressurizing tank is lowered, cost is reduced, the structure for supplying gas to the gas bearing is simplified, and operation is more stable. The invention also discloses a motor.

Description

technical field [0001] The present application relates to the technical field of power machinery, for example, it relates to a gas supply device for a gas bearing and a motor. Background technique [0002] At present, gas bearings can be roughly divided into dynamic pressure gas bearings and static pressure gas bearings. In order to make the rotor float, the static pressure gas bearing needs to provide high gas pressure to the static pressure gas bearing to support the rotor. In the working stage of the bearing, the rotor is in contact with the bearing, and the rotor and the bearing rub against each other, which is easy to cause wear and tear. It is often necessary to feed the high-pressure gas to support the rotor first, so as to supply the static pressure gas bearing and the dynamic pressure gas bearing in the starting working stage. Gas, an external refrigerant pressurization tank is required to pressurize the refrigerant and increase the pressure of the gas supply. [0...

AI Technical Summary

Problems solved by technology

[0002] At present, gas bearings can be roughly divided into dynamic pressure gas bearings and static pressure gas bearings. In order to make the rotor float, the static pressure gas bearing needs to provide high gas pressure to the static pressure gas bearing to support the rotor. In the working stage of the bearing, the rotor is in contact with the bearing, and the rotor and the bearing rub against each other, which is easy to cause wear and tear. It is often necessary to feed the high-pressure gas to support the rotor first, so as to supply the static pressure gas bearing and the dynamic pressure gas bearing in the starting working stage. Gas, an external refrigerant pressurization tank is required to pressurize the refrigerant and increase the pressure of the gas supply

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: increasing the complexity of the system and increasing the cost

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