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Method and apparatus for determining gas turbine dampening cone inner diameter

一种燃气涡轮、内直径的技术，应用在燃气涡轮发动机测试、燃气轮机装置、机械设备等方向

Inactive Publication Date: 2015-06-17
SIEMENS ENERGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, reproducible and consistent diameter determinations are subject to differences in micrometer placement and individual examiner skills

Method used

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  • Method and apparatus for determining gas turbine dampening cone inner diameter
  • Method and apparatus for determining gas turbine dampening cone inner diameter
  • Method and apparatus for determining gas turbine dampening cone inner diameter

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Embodiment Construction

[0025] After considering the following description, those skilled in the art will clearly appreciate that the teachings of the various embodiments of the present invention can be readily used to determine gas turbine engine damping cone inner diameters, including those having spherical or other convex inner diameter surface profiles damping cone. Using embodiments of the method and apparatus concepts described herein, the inner diameter is determined using a fixture comprising a displacement indicator having a displacement axis aligned with a dowel pin. The damping cone inner diameter is placed in contact with the dowel on one side and the displacement point on the other. The indicator displacement is related to the inside diameter of the damping cone. In a damping cone with a convex surface profile, the indicator displacement point is located on the convex axial peak, which can be facilitated by using the knife edge displacement point. The maximum diameter of the inner surf...

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Abstract

Gas turbine engine generally ring-shaped dampening cone (20) inner diameters, including those having spherical or other convex inner diameter surface profiles, are determined with a fixture (30) including a displacement indicator (60) having an axis of displacement in alignment with a locating pin (40). The dampening cone inner diameter surface is placed in contact with the locating pin on one side and a displacement point on the other side, so that the dampening cone inner diameter surface circumscribes a contact surface formed on the locating pin and the displacement point. The indicator displacement is correlated with the dampening cone inner diameter.

Description

technical field [0001] The present invention relates to methods and apparatus for determining the internal diameter of a generally annular damping cone of a gas turbine engine. More particularly, the present invention also relates to methods and apparatus for determining the inner diameter of damping cones having spherical or other convex inner diameter surface profiles. Background technique [0002] The damper cone is an annular member that is radially and axially interposed between the gas turbine engine rotor tie rods and the turbine disk rows to couple each row sequentially along the rotor and maintain radial concentricity between the disk row / rotor tie rod interface Spend. Due to the large diameter, the axial length and rotating mass of the gas turbine engine damping cone must be precisely machined with concentric inner diameters having uniform radii within tolerance specifications within tens of microns in order to minimize vibration of the rotating machine. The damp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
CPCF01D5/10F01D25/285G01B5/12F01D25/28F02C7/20F02C7/24Y02T50/60G01B21/14G01M15/14
Inventor P.J.马特拉普迪
Owner SIEMENS ENERGY INC