Plug assembly of borescope and cartridge receiver plugging method

A hole detector and plugging technology, which is applied in the direction of engine sealing, instruments, mechanical equipment, etc., can solve the problems of inconsistent deformation of the two-layer casing, save inspection maintenance and management costs, improve inspection efficiency, and have a simple structure Effect

Active Publication Date: 2021-01-15
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the engine is working, the deformation of the two-layer casing is inconsistent, and the original form of a rigid plug can no longer be used.

Method used

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  • Plug assembly of borescope and cartridge receiver plugging method
  • Plug assembly of borescope and cartridge receiver plugging method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] figure 1 It is a schematic diagram of the installation of the hole detector plug for the multi-layer casing, figure 2 is a schematic diagram of the hole finder plug assembly, combined with figure 1 and figure 2 As shown, this embodiment provides a plug assembly 2 for a borescope, and the plug assembly 2 includes a nut 2-1, a positioning member, a gasket 2-3, an elastic member, and a plug rod 2-5; The cap 2-1 is connected with one end of the blocking rod 2-5 through a positioning piece, and the blocking rod 2-5 has a degree of freedom in the radial direction of the casing; the nut 2-1 is threadedly connected with the outer casing 3; one end of the elastic member It is limited in the middle of the blocking rod 2-5, and the other end is in contact with the gasket 2-3, which is used to exert force on the blocking rod 2-5 in the radial direction of the casing; the gasket 2-3 and the nut 2-1 are close to the inside One end of the receiver contacts. The head of the block...

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Abstract

The invention provides a plug assembly of a borescope. The plug assembly (2) comprises a nut (2-1), a positioning piece, a gasket (2-3), an elastic piece and a plug rod (2-5). According to the plug assembly, effective plugging of holes of the multi-layer cartridge receiver borescope can be realized, the borescope detection efficiency of an engine is improved, and the detection and maintenance costof the engine is saved.

Description

technical field [0001] The invention belongs to the technical field of aero-engine components / test pieces, and relates to a plugging structure of a hole finder suitable for a multi-layer casing. Background technique [0002] As one of engine condition-based maintenance technologies, borehole detection technology is widely used in engine overhaul and maintenance. The internal core parts of the engine (such as compressor stator blades and flow channels, turbine rotor stator blades and flow channels, etc.) can be observed by using hole detection equipment, and cracks, burns, corrosion, and pressure pits can be observed , tearing and other defects provide key information for determining whether the engine needs to be disassembled for maintenance. [0003] Most of the existing casings have a single-layer structure, and the borescope holes are directly arranged on the casing. The plug can directly adopt the threaded connection structure. Considering the rigidity of the engine a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/06F16J15/02G01M15/02
CPCF16J15/06F16J15/062F16J15/02G01M15/02Y02E30/30
Inventor 戴晓洁刘礼杨晓清杨伟
Owner AECC SICHUAN GAS TURBINE RES INST
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