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Gas turbine rotor supporting mechanism and gas turbine with same

A gas turbine and rotor support technology, which is applied in the directions of machine/engine, engine lubrication, turbine/propulsion device lubrication, etc., can solve the problems of low axial bearing capacity of gas turbines, easy light-load skidding, etc., to eliminate light-load skid, Good structural stability and the effect of expanding the range of changes

Active Publication Date: 2014-08-27
CHINA AVIATION POWER MACHINE INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gas turbine rotor support mechanism and a gas turbine with the support mechanism to solve the problems of low axial bearing capacity of the gas turbine and easy light-load skidding caused by the existing support mode of ball bearings and roller bearings. question

Method used

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  • Gas turbine rotor supporting mechanism and gas turbine with same
  • Gas turbine rotor supporting mechanism and gas turbine with same

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Embodiment Construction

[0023] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered.

[0024] figure 1 It is a structural schematic diagram of a gas turbine rotor supporting mechanism in a preferred embodiment of the present invention; figure 2 yes figure 1 Schematic diagram of the partial enlarged structure of site A in the middle. Such as figure 1 and figure 2 As shown, the gas turbine rotor supporting mechanism of this embodiment includes ball bearings 3 arranged on both sides of the gas turbine rotor disk 1 for supporting the gas turbine rotor 2. The first ball bearing 301 and the second ball bearing 302 arranged on the rotor shaft on the second side of the rotor disc, the first ball bearing 301 includes a first outer ring 3011, and the first outer ring 3011 is provided with a direction to the gas turbine rotor 2 The elastic mechanism 4 that ap...

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Abstract

The invention discloses a gas turbine rotor supporting mechanism and a gas turbine with the same. The gas turbine rotor supporting mechanism comprises ball bearings arranged on two sides of a gas turbine rotor wheel disc to be used for supporting a gas turbine rotor, the ball bearings comprise a first ball bearing arranged on a rotor shaft on a first side of the gas turbine rotor wheel disc and a second ball bearing arranged on a rotor shaft on a second side of the rotor wheel disc, the first ball bearing comprises a first outer ring, the first outer ring is provided with an elastic mechanism used for exerting axial force on the gas turbine rotor and buffering the gas turbine rotor axial force, and the second ball bearing is arranged into a thrust bearing for bearing the axial force of the gas turbine rotor. The gas turbine rotor supporting mechanism can improve axial bearing capability of the gas turbine, the problem of light load slippage is solved, and structural stability of the whole supporting mechanism in a high-speed running state is good.

Description

technical field [0001] The invention relates to the field of gas turbine structure, in particular, to a gas turbine rotor support mechanism. In addition, the present invention also relates to a gas turbine comprising the above-mentioned supporting mechanism. Background technique [0002] The gas turbine is a high-speed rotating machine, and the working speed of the micro gas turbine is usually above 40000r / min, which has crossed the second-order or even third-order critical speed of the rotor. The rapid change of the rotational speed brings about a sharp increase or decrease in the pressure and temperature of the front and rear sections of the compressor and turbine, causing rapid changes or even reverses in the axial force of the rotor, which can lead to light-load slippage or insufficient carrying capacity of the gas turbine bearing. [0003] For the stability of the shafting of the gas turbine, the rotor is often supported by ball bearings and roller bearings at home and...

Claims

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Application Information

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IPC IPC(8): F01D25/28F01D25/16F02C7/06
Inventor 张亿力杨家礼刘秀芳黄舜季星星
Owner CHINA AVIATION POWER MACHINE INST
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