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Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor

A gas turbine and positioning structure technology, applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of reduced structural durability, high cost, etc., to achieve lower requirements, reduce extrusion stress, and avoid micro-sliding or The effect of relative displacement

Active Publication Date: 2015-04-22
BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the rotor mounting structure of the prior art sometimes even leads to a reduction in the durability of the structure, requiring the use of high-strength materials or thickening the thickness of the wheel disc or even developing a new assembly process, which has the problem of causing high cost

Method used

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  • Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor
  • Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor
  • Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor

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Embodiment Construction

[0023] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0024] figure 1 It is a schematic diagram of the structure of the gas turbine rotor, which includes the compressor rotor unit 100 on the compressor side, the intermediate shaft 200 and the turbine rotor unit 300 on the turbine side in order from front to back. The compressor rotor unit includes a compressor shaft head 1, a compressor wheel 3, a circle of circumferentially spaced compressor rotor blades 4, a compressor tie rod 5, and a compressor tie rod nut 2 mounted on the compressor wheel 3. The compressor rotor blade 4 is arranged on the outer side of the compressor wheel 3 and can compress air to perform work under the drive of the compressor wheel 3. Adjacent compressor wheels 3 are axially stacked on each...

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Abstract

The invention relates to the field of gas turbine rotors and discloses a wheel disc spigot locating structure of the gas turbine rotor and the gas turbine rotor. Two wheel discs are axially overlapped, axial bumps are arranged at the opposite head faces of the two wheel discs, axial grooves are formed in the other head faces, and the outer diameters of the axial bumps are in interference fit with the inner diameters of the axial grooves; each axial bump is provided with an interference amount adjusting nick; the interference amount adjusting nick is a circular ring-shaped nick formed in the axial head face of the axial bump. By means of the wheel disc spigot locating structure, the wheel disc of the rotor can use a small interference magnitude when assembling, the device extrusion stress is reduced, the assembly is facilitated, the requirement on fixture is lowered, the rotor fits tightly under a working state, and the gas turbine rotor integrity is guaranteed.

Description

Technical field [0001] The invention relates to the field of gas turbine rotors, in particular to a wheel disc stop positioning structure of a gas turbine rotor and a gas turbine rotor. Background technique [0002] The gas turbine rotor includes a section on the compressor side, a section on the turbine side, and an intermediate shaft connecting the two sections. Both sections include a multi-stage disc. The two adjacent discs of the multi-stage disc The end faces are relatively matched. An axial protrusion is machined on one end surface of two adjacent wheel discs, and an axial groove is machined on the opposite end surface of the two adjacent wheel discs, and the axial protrusion is inserted into the axial groove to form a stop positioning fit. The installation and coordination of the axial protrusion and the axial groove requires strict coaxiality requirements. [0003] In order to achieve the requirements of radial and axial positioning, when assembling the discs of each lev...

Claims

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Application Information

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IPC IPC(8): F01D5/06
Inventor 陈海燕冯泽军刘丙权李炳涛
Owner BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH
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