Thrust bearing, rotor system and control method of thrust bearing

A thrust bearing and rotor technology, applied in the field of bearings, can solve the problems of high energy consumption, inapplicability, and shaft collision of magnetic bearings, and achieve the effect of improving bearing capacity and strong anti-disturbance ability

Pending Publication Date: 2018-11-23
靳普
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the magnetic bearing is turned on for a long time, there are problems such as excessive energy consumption and heat generation; while the air bearing will generate shock waves when the surface linear velocity is close to or exceeds th...

Method used

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  • Thrust bearing, rotor system and control method of thrust bearing
  • Thrust bearing, rotor system and control method of thrust bearing
  • Thrust bearing, rotor system and control method of thrust bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Such as Figure 1 to Figure 4 As shown, the thrust bearing 500 is used to be installed on the rotating shaft 100, and the thrust bearing 500 includes:

[0090] Thrust plate 5101, the thrust plate 5101 is fixedly connected to the rotating shaft 100;

[0091] And, the first stator 5102 and the second stator 5103 passing through the rotating shaft 100, the first stator 5102 and the second stator 5103 are respectively arranged on opposite sides of the thrust plate 5101;

[0092] In the first stator 5102 and the second stator 5103, each stator includes a magnetic bearing 5104 and a foil bearing 5105, the magnetic bearing 5104 is provided with a plurality of first magnetic components along the circumferential direction, and the foil bearing 5105 is provided with multiple A second magnetic component that generates a magnetic force between the first magnetic components;

[0093] Wherein, the foil bearing 5105 is arranged between the magnetic bearing 5104 and the thrust plate ...

Embodiment 2

[0135] An embodiment of the present invention provides a rotor system, including:

[0136] A rotating shaft, the shaft body of which is an integrated structure, and the rotating shaft is arranged horizontally;

[0137] A motor, a compressor and a turbine arranged on the rotating shaft in sequence;

[0138] And, a thrust bearing and at least two radial bearings arranged on the rotating shaft;

[0139] Wherein, the thrust bearing is arranged at a preset position on the side of the turbine close to the compressor, and the preset position is such that the center of gravity of the rotor system is located at the at least two radial bearings The position between the two radial bearings that are farthest apart.

[0140] In the embodiment of the present invention, the thrust bearing is the thrust bearing provided in this application.

[0141] In the embodiment of the present invention, the thrust bearing is a bearing used to limit the movement of the rotating shaft in the axial dire...

Embodiment 3

[0157] An embodiment of the present invention provides a rotor system, including:

[0158] A rotating shaft, the shaft body of the rotating shaft is an integrated structure, and the rotating shaft is arranged vertically;

[0159] A motor, a compressor and a turbine arranged on the rotating shaft in sequence;

[0160] And, a thrust bearing and at least two radial bearings arranged on the rotating shaft;

[0161] Wherein, the thrust bearing is arranged at a preset position on the side of the turbine close to the compressor, and the preset position is such that the center of gravity of the rotor system is located at the at least two radial bearings The position between the two radial bearings that are farthest apart.

[0162] In the embodiment of the present invention, the thrust bearing is the thrust bearing provided in this application.

[0163] In the embodiment of the present invention, the thrust bearing is a bearing used to limit the movement of the rotating shaft in the...

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Abstract

The invention provides a thrust bearing, a rotor system and a control method of the thrust bearing. The thrust bearing comprises a thrust disc, firsts stators and second stators, wherein the thrust disc is fixedly connected to a rotating shaft, the first stators and the second stators are arranged on the rotating shaft in a penetrating mode, and the first stators and the second stators are arranged on the two opposite sides of the thrust disc; each stator comprises a magnetic bearing and a foil bearing, a plurality of first magnetic parts are arranged on the magnetic bearings in the circumferential direction, and second magnetic parts are arranged on the foil bearings; and the foil bearings are arranged between the magnetic bearings and the thrust disc, bearing gaps are formed between thefoil bearings and the thrust disc, and the foil bearings can move in the axial direction of the rotating shaft under the action of magnetic force. According to the thrust bearing, the bearing gaps andthe magnetic bearings are arranged in the thrust bearing, so that the thrust bearing forms a gas and magnetic hybrid thrust bearing, and the dynamic performance and the stability of the thrust bearing under a high-speed running state can be improved due to the fact that gas bearings and the magnetic bearings can work cooperatively.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a thrust bearing, a rotor system and a control method for the thrust bearing. Background technique [0002] A gas turbine mainly includes three major components: a compressor, a combustor, and a turbine. After the air enters the compressor, it is compressed into high-temperature and high-pressure air, and then supplied to the combustion chamber for mixed combustion with fuel, and the high-temperature and high-pressure gas generated expands in the turbine to perform work. When the rotor rotates at high speed, the rotor will be subjected to force in the axial direction. In order to limit the axial movement of the rotating shaft, thrust bearings need to be installed in the rotor system. Traditional thrust bearings are common contact bearings. As the rotor speed increases, especially when the rotor speed exceeds 40,000 revolutions per minute, ordinary contact bearings can no longe...

Claims

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Application Information

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IPC IPC(8): F16C32/04F16C32/06F16C41/00F02C7/06
CPCF02C7/06F16C32/0446F16C32/0465F16C32/0472F16C32/0603F16C41/00F16C2360/23
Inventor 靳普
Owner 靳普
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