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Wheel disc with at least one sealing metal sheet

A technology of sealing plates and discs, applied in the directions of supporting elements of blades, preventing leakage, engine elements, etc., can solve problems such as high cost and notch effect, and achieve the effect of simple replacement and small thickness

Inactive Publication Date: 2016-12-14
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a problem arises with fixing devices designed in such a way that the notch effect associated with the threaded holes provided in the wheel disc can cause problems
Also, during service, the screws often no longer loosen, which is expensive to drill out of the joint

Method used

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  • Wheel disc with at least one sealing metal sheet
  • Wheel disc with at least one sealing metal sheet
  • Wheel disc with at least one sealing metal sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Figure 1 to Figure 9 A roulette 1 or parts thereof according to an embodiment of the invention are shown. The wheel disc 1 comprises a plurality of sealing plates 2 fastened to said wheel disc 1 so that the sealing plates 2 can be displaced in the circumferential direction. For this purpose, the radially inward edge of the sealing plate 2 is provided with a flange 3 which is accommodated in an undercut receiving groove 4 so that the sealing plate 2 can be displaced in the circumferential direction, wherein The receiving groove 4 is formed on the one hand by the wheel 1 and the locking piece 5 , which in the present case has an L-shaped cross-section, and on the other hand is fastened to the wheel 1 . In this regard, it should be pointed out that the flange 3 and the receiving groove 4 are only one example of a form-fit connection and that in principle other form-fit connections for fastening the sealing plate 2 to the wheel disc 1 could also be used. In order to prev...

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PUM

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Abstract

The invention relates to a wheel disc (1) with at least one sealing metal sheet (2), which is fixed to the wheel disc (1) in a movable manner in the circumferential direction of the wheel disc, and with at least one securing device (6), which is designed to secure the at least one sealing metal sheet (2) against a displacement in the circumferential direction of the wheel disc (1) in the correctly assembled state. The securing device (6) has a screw (7), which is screwed to the sealing metal sheet (2) and which extends through the sealing metal sheet, and a depression (8), which is provided on the wheel disc (1) and which receives the free end of the screw (7) in the correctly assembled state and the wall of which restricts a movement of the screw (7) in the circumferential direction.

Description

technical field [0001] The invention relates to a wheel disc having at least one sealing plate fastened to the wheel disc such that the sealing plate can be displaced in the circumferential direction of the wheel disc and having at least one fixing device which The device is designed such that the fixing device fixes the at least one sealing plate in a correctly installed state against displacement in the circumferential direction of the wheel disc. Background technique [0002] Roulettes of this type are known in the prior art. They form part of a rotor, such as, for example, a gas turbine rotor or the like. Usually, a plurality of sealing plates are arranged on the wheel so that the sealing plates can be displaced in the circumferential direction of the wheel. Thus, the sealing plate can be inserted, for example with its edge facing radially inwards, into a circumferential groove provided on the wheel disc. In order to ensure that the sealing plates function as intended...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/30F01D5/32F01D11/00
CPCF01D5/3015F01D5/326F01D11/006F05D2260/36F05D2260/30F05D2260/31F01D5/02F01D11/003F05D2220/32F05D2240/24
Inventor S·东斯H·霍伊尔K·坎普卡K·科尔克M·朗P·施罗德V·威兹曼
Owner SIEMENS AG