CN108169322A - A kind of engine blade in-situ EDDY CURRENT transmission device - Google Patents
A kind of engine blade in-situ EDDY CURRENT transmission device Download PDFInfo
- Publication number
- CN108169322A CN108169322A CN201711220940.1A CN201711220940A CN108169322A CN 108169322 A CN108169322 A CN 108169322A CN 201711220940 A CN201711220940 A CN 201711220940A CN 108169322 A CN108169322 A CN 108169322A
- Authority
- CN
- China
- Prior art keywords
- eddy current
- cradle head
- spring
- transmission device
- connect
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
Abstract
A kind of engine blade in-situ EDDY CURRENT transmission device, it is characterised in that：The engine blade in-situ EDDY CURRENT transmission device, including eddy current probe, spring, cradle head, back segment pipe, optical fiber geometrical clamp, cradle head adjusting nut；Wherein：Eddy current probe is connect by cradle head with spring, and spring is connect with back segment pipe, and optical fiber geometrical clamp and cradle head adjusting nut are connect respectively with back segment pipe.Advantages of the present invention：Realize the control of leading portion pipe rotational angle.The distance value that observation lid is visited according to different grade blade type face angle degree and its relative opening determines the design often eddy current probe of the length of set tooling leading portion pipe and corresponding different angle.Since the angle of blade profile is radially constantly changing along engine, what is given during design is the median in the range of angle change, spring is installed between the rear portion of sonde configuration and leading portion pipe, using the free deformation of spring in a certain range, to adapt to the variation of blade profile angle.
Description
Technical field
The present invention relates to aviation part field of non destructive testing, a kind of more particularly to engine blade in-situ EDDY CURRENT passes
Send device.
Background technology
Blade is the important part of engine, is easily occurred disconnected with rotor high speed rotation in high temperature, hyperbaric environment during work
It splits and waits critical faults, seriously endanger the work safety of engine.EDDY CURRENT in situ can not influence, not change engine
The security risk of part is quickly and efficiently detected under the premise of whole performance, there is weight to the safe handling of engine
Want meaning.But since engine interior structure is extremely complex, realize that in situ detection is very difficult, it tends to be difficult to carry out.
Invention content
The purpose of the present invention is to solve engine blade in-situ EDDY CURRENT problems, effectively avoid engine interior
Eddy current probe and interior observation device of peeping are sent to tested position by labyrinth, ensure that eddy current probe carries out vortex inspection to blade
It surveys, finds the dangerous defect such as infant cracking in time, while interior observation device of peeping can monitor EDDY CURRENT operating process in real time, keep away
Exempt from maloperation, make testing result relatively reliable, provide a kind of engine blade in-situ EDDY CURRENT transmission device.
The present invention provides a kind of engine blade in-situ EDDY CURRENT transmission devices, it is characterised in that：Described starts
Machine blade original position EDDY CURRENT transmission device, including eddy current probe 1, spring 2, cradle head 3, back segment pipe 4, optical fiber geometrical clamp 5,
Cradle head adjusting nut 6；
Wherein：Eddy current probe 1 is connect by cradle head 3 with spring 2, and spring 2 is connect with back segment pipe 4, optical fiber geometrical clamp 5
It is connect respectively with back segment pipe 4 with cradle head adjusting nut 6.
The back segment pipe 4, inside are disposed with borescope light pricker, probe wire, cradle head and stretch steel wire；Borescope light
Pricker and probe wire are connect with eddy current probe 1, and cradle head stretches steel wire and connect with cradle head 3.
It is two that the cradle head, which stretches steel wire,.
Since engine interior channel is narrow, therefore the overall structure of EDDY CURRENT transmission device in situ is integral type " rod-type "
Structure, and since sense channel is vertical with observation lid axis, therefore transmission device needs are designed to " cradle head " structure, are sending out
Cradle head can be controlled to rotate outside motivation, making probe, eddy current probe is fixed on detection work towards tested blade intake and exhaust side
Front end is filled, is connect with tooling using spring, ensures that probe forms the coupling for adaptively, improving detection with blade inlet and outlet side
Effect；Transmission device inner passage will also have interior other than the conducting wire for pulling steel wire, probe for being equipped with control " joint " movement
Observation device designated lane is peeped, the CCD that observation device is peeped in guarantee can be sent by tooling inner passage to detection position,
To prevent from interfering, the thin-wall tube by multiple and different diameters is needed to combine and weld together, to ensure conducting wire, pull steel
Silk, borescope have respective channel.
Advantages of the present invention：
Bending function designs：Design leading portion rotation pipe and the back segment fixing pipe of device have a pin hinge connect can bending,
Leading portion rotation pipe is connect with two structure of steel wire by pin hinge, and the adjusting nut at rear portion coordinates principle to pass through rotation by thread screw
Button can be inside joystick link block, link block both sides are connect respectively with steel wire, so as to fulfill leading portion pipe rotational angle
Control.
The layout design of pipeline architecture：Two traction steel wires are contained inside back segment fixing pipe, are vortexed conduit, protection electricity
The conducting wire of eddy current probe avoids interference with abrasion, endoscope CCD guide pipes, guiding and protection endoscope optical fiber, can be by Ф 4mm
Optical fiber stretch into pipe, laterally there is one section of opening in guide pipe forepart, and borescope is enable to expose outside pipe, passes through the direction of optical fiber head
Engine interior structure space is observed in control, and the distance of observation lid is visited according to different grade blade type face angle degree and its relative opening
Value determines the design often eddy current probe of the length of set tooling leading portion pipe and corresponding different angle.
The external structure of eddy current probe：Since the angle of blade profile is radially constantly changing along engine, design
When give is median in the range of angle change, spring is installed between the rear portion of sonde configuration and leading portion pipe, utilizes bullet
The free deformation of spring in a certain range, to adapt to the variation of blade profile angle.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail：
Fig. 1 is engine blade in-situ EDDY CURRENT transmission device structure diagram.
Specific embodiment
Embodiment 1
The present invention provides a kind of engine blade in-situ EDDY CURRENT transmission devices, it is characterised in that：Described starts
Machine blade original position EDDY CURRENT transmission device, including eddy current probe 1, spring 2, cradle head 3, back segment pipe 4, optical fiber geometrical clamp 5,
Cradle head adjusting nut 6；
Wherein：Eddy current probe 1 is connect by cradle head 3 with spring 2, and spring 2 is connect with back segment pipe 4, optical fiber geometrical clamp 5
It is connect respectively with back segment pipe 4 with cradle head adjusting nut 6.
The back segment pipe 4, inside are disposed with borescope light pricker, probe wire, cradle head and stretch steel wire；Borescope light
Pricker and probe wire are connect with eddy current probe 1, and cradle head stretches steel wire and connect with cradle head 3.
It is two that the cradle head, which stretches steel wire,.
Since engine interior channel is narrow, therefore the overall structure of EDDY CURRENT transmission device in situ is integral type " rod-type "
Structure, and since sense channel is vertical with observation lid axis, therefore transmission device needs are designed to " cradle head " structure, are sending out
Cradle head can be controlled to rotate outside motivation, making probe, eddy current probe is fixed on detection work towards tested blade intake and exhaust side
Front end is filled, is connect with tooling using spring, ensures that probe forms the coupling for adaptively, improving detection with blade inlet and outlet side
Effect；Transmission device inner passage will also have interior other than the conducting wire for pulling steel wire, probe for being equipped with control " joint " movement
Observation device designated lane is peeped, the CCD that observation device is peeped in guarantee can be sent by tooling inner passage to detection position,
To prevent from interfering, the thin-wall tube by multiple and different diameters is needed to combine and weld together, to ensure conducting wire, pull steel
Silk, borescope have respective channel.
Embodiment 2
The present invention provides a kind of engine blade in-situ EDDY CURRENT transmission devices, it is characterised in that：Described starts
Machine blade original position EDDY CURRENT transmission device, including eddy current probe 1, spring 2, cradle head 3, back segment pipe 4, optical fiber geometrical clamp 5,
Cradle head adjusting nut 6；
Wherein：Eddy current probe 1 is connect by cradle head 3 with spring 2, and spring 2 is connect with back segment pipe 4, optical fiber geometrical clamp 5
It is connect respectively with back segment pipe 4 with cradle head adjusting nut 6.
The back segment pipe 4, inside are disposed with borescope light pricker, probe wire, cradle head and stretch steel wire；Borescope light
Pricker and probe wire are connect with eddy current probe 1, and cradle head stretches steel wire and connect with cradle head 3.
Since engine interior channel is narrow, therefore the overall structure of EDDY CURRENT transmission device in situ is integral type " rod-type "
Structure, and since sense channel is vertical with observation lid axis, therefore transmission device needs are designed to " cradle head " structure, are sending out
Cradle head can be controlled to rotate outside motivation, making probe, eddy current probe is fixed on detection work towards tested blade intake and exhaust side
Front end is filled, is connect with tooling using spring, ensures that probe forms the coupling for adaptively, improving detection with blade inlet and outlet side
Effect；Transmission device inner passage will also have interior other than the conducting wire for pulling steel wire, probe for being equipped with control " joint " movement
Observation device designated lane is peeped, the CCD that observation device is peeped in guarantee can be sent by tooling inner passage to detection position,
To prevent from interfering, the thin-wall tube by multiple and different diameters is needed to combine and weld together, to ensure conducting wire, pull steel
Silk, borescope have respective channel.
Claims (3)
1. a kind of engine blade in-situ EDDY CURRENT transmission device, it is characterised in that：The engine blade in-situ vortex
Transmission device is detected, including eddy current probe (1), spring (2), cradle head (3), back segment pipe (4), optical fiber geometrical clamp (5), rotation
Joint adjusting nut (6)；
Wherein：Eddy current probe (1) is connect by cradle head (3) with spring (2), and spring (2) is connect with back segment pipe (4), optical fiber
Geometrical clamp (5) and cradle head adjusting nut (6) are connect respectively with back segment pipe (4).
2. engine blade in-situ EDDY CURRENT transmission device described in accordance with the claim 1, it is characterised in that：The back segment
It manages (4), inside is disposed with borescope light pricker, probe wire, cradle head and stretches steel wire；Borescope light pricker and probe wire and whirlpool
Stream probe (1) connection, cradle head stretch steel wire and are connect with cradle head (3).
3. engine blade in-situ EDDY CURRENT transmission device described in accordance with the claim 2, it is characterised in that：The rotation
Articulation in extension steel wire is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220940.1A CN108169322A (en) | 2017-11-29 | 2017-11-29 | A kind of engine blade in-situ EDDY CURRENT transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220940.1A CN108169322A (en) | 2017-11-29 | 2017-11-29 | A kind of engine blade in-situ EDDY CURRENT transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108169322A true CN108169322A (en) | 2018-06-15 |
Family
ID=62524077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711220940.1A Pending CN108169322A (en) | 2017-11-29 | 2017-11-29 | A kind of engine blade in-situ EDDY CURRENT transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108169322A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406620A (en) * | 2018-11-20 | 2019-03-01 | 中国航发贵州黎阳航空动力有限公司 | A kind of turbo blade leading edge eddy current probe |
| CN110064988A (en) * | 2019-04-03 | 2019-07-30 | 沈阳航空航天大学 | A kind of aero-engine is pneumatically polished instrument |
| RU211556U1 (en) * | 2021-12-29 | 2022-06-14 | Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") | Device for monitoring the rotor blades of a compressor of a gas turbine engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592590A (en) * | 2008-05-26 | 2009-12-02 | 唐德尧 | A kind of fault indirect diagnosis technique of rotating blade |
| CN204241421U (en) * | 2014-10-27 | 2015-04-01 | 沈阳黎明航空发动机(集团)有限责任公司 | One can bending blade edge borescope detect device |
| CN105259248A (en) * | 2015-11-20 | 2016-01-20 | 北京理工大学 | Aviation engine blade surface damage eddy current scanning and detecting system |
| CN105980906A (en) * | 2013-12-20 | 2016-09-28 | 涡轮梅坎公司 | Endoscope and method for using same |
-
2017
- 2017-11-29 CN CN201711220940.1A patent/CN108169322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592590A (en) * | 2008-05-26 | 2009-12-02 | 唐德尧 | A kind of fault indirect diagnosis technique of rotating blade |
| CN105980906A (en) * | 2013-12-20 | 2016-09-28 | 涡轮梅坎公司 | Endoscope and method for using same |
| CN204241421U (en) * | 2014-10-27 | 2015-04-01 | 沈阳黎明航空发动机(集团)有限责任公司 | One can bending blade edge borescope detect device |
| CN105259248A (en) * | 2015-11-20 | 2016-01-20 | 北京理工大学 | Aviation engine blade surface damage eddy current scanning and detecting system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406620A (en) * | 2018-11-20 | 2019-03-01 | 中国航发贵州黎阳航空动力有限公司 | A kind of turbo blade leading edge eddy current probe |
| CN110064988A (en) * | 2019-04-03 | 2019-07-30 | 沈阳航空航天大学 | A kind of aero-engine is pneumatically polished instrument |
| RU211556U1 (en) * | 2021-12-29 | 2022-06-14 | Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") | Device for monitoring the rotor blades of a compressor of a gas turbine engine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |
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| RJ01 | Rejection of invention patent application after publication |