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Replaceable staking insert assembly and corresponding method

A technology of pile fixing and assembly, applied in the direction of pump components, engine components, non-variable pumps, etc.

Active Publication Date: 2013-03-06
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, once these peg positions are consumed, the rotor wheel generally must be replaced, even if the rotor wheel is still functional in other respects

Method used

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  • Replaceable staking insert assembly and corresponding method
  • Replaceable staking insert assembly and corresponding method
  • Replaceable staking insert assembly and corresponding method

Examples

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Embodiment Construction

[0043] The present application will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the application are shown. Like numbers refer to like elements in all figures.

[0044] In one aspect, a rotor assembly is provided. Figure 1A and 1B Shown separately are rotor blades 102 and rotor 104, which are components of the rotor assembly. The rotor 104 may include at least one axial slot 106 positioned around the rim of the rotor 104 . Axial notch 106 may be of any shape known in the art. In certain embodiments, the axial notch 106 has a dovetail shape. The axial notch 106 may include a first staking notch 114 positioned therein. In some embodiments, the first staking recess includes a base and at least one sidewall. In one embodiment, a first staking notch 114 is positioned at one end of the axial notch 106 and has a base 116 and a recessed sidewall 118 defining an axial opening 120 . However, other shapes of f...

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PUM

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Abstract

The invention relates to a replaceable staking insert assembly and a corresponding method. The rotor assembly includes a rotor, at least one axial slot positioned about the rim of the rotor having a first staking recess positioned therein, a blade positioned within each of the axial slots having a second staking recess positioned therein, a staking insert having a base portion and a projection extending therefrom with the base portion being disposed within the first staking recess and the projection being disposed within the second staking recess, and a shim positioned within the first staking recess adjacent to the base portion, opposite the projection, of the staking insert. The first staking recess retains the staking insert while the projection of the staking insert retains the blade in both the aft and forward directions.

Description

technical field [0001] The present application relates generally to replaceable staking insert assemblies for retaining wheel attachments and, more particularly, to replaceable staking insert assemblies for blades mounted on compressor rotors. Background technique [0002] A gas turbine system typically includes a compressor rotor with many stages. Air flowing into the compressor is compressed at various stages. Each stage includes a number of rotor buckets or blades mounted in spaced relation to the rim of a rotor wheel or disk. A typical compressor rotor may have many rotor blades mounted thereon. [0003] Generally described, each blade may have a dovetail portion that interlocks with the dovetail region of the rim to secure the blade to the rotor. The blade dovetails may be secured to the rotor by a process known as "staking". Specifically, the rotor blade is placed within the rim slot and then "staked" at both ends by deforming the metallic material around the blade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/26
CPCF01D5/30F01D5/3007F01D5/323F01D5/326Y10T29/49321
Inventor S.阿加拉姆N.K.V.劳
Owner GENERAL ELECTRIC TECH GMBH
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