CN105445364B - A kind of dedicated conformal array eddy current testing device of track switch and method - Google Patents
A kind of dedicated conformal array eddy current testing device of track switch and method Download PDFInfo
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- CN105445364B CN105445364B CN201511014390.9A CN201511014390A CN105445364B CN 105445364 B CN105445364 B CN 105445364B CN 201511014390 A CN201511014390 A CN 201511014390A CN 105445364 B CN105445364 B CN 105445364B
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- eddy current
- track switch
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- magnet block
- conformal
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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
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
Abstract
The invention discloses a kind of dedicated conformal array eddy current testing device of track switch and methods, design unique conformal array eddy current testing device, it restrained effectively turnout rail surface roughness and interference of the lift-off to signal of popping one's head in, overcome the surface crack testing limitation to track switch different directions, improve the precision and efficiency of detecting to track switch surface and near surface flaw, the scanning of large area can be disposably completed, and imaging is carried out to testing result and is shown.
Description
Technical field
The present invention relates to a kind of non-destructive testing device and methods, more particularly to a kind of dedicated conformal array vortex inspection of track switch
Survey device and method.
Background technique
The surface defect of high-speed railway switch surface defect, especially rail bottom foot position can cause the moment of rail disconnected
It splits, causes huge hidden danger to safe railway operation.Therefore, in-service track switch surface defect inspection technique is studied to advantageously reduce by road
The security risks such as driving accident caused by trouble fractures, have important practical significance.
High-speed railway switch includes the parts such as tongue, stock rail, heart rail and wing rail, and track switch cross section is continuous variable cross section,
Conventional vortex detection method detect when, eddy current probe can not be formed with track switch detection faces it is good be bonded, be also easy to produce shaking,
The interference signals such as lift-off, cause missing inspection；On the other hand, track switch circumferential crack is always railway security non-destructive testing problem, conventional
There are limitations for surface crack testing of the eddy current detection method to track switch different directions.
Therefore, in need to inhibit turnout rail surface roughness and interference of the lift-off to signal of popping one's head in, overcome to track switch not Tongfang
To surface crack testing limitation, propose a kind of dedicated conformal array eddy current testing device of track switch and method, improve to track switch
The precision and efficiency of detecting on surface and near surface flaw.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, provides a kind of dedicated conformal array EDDY CURRENT dress of track switch
It sets and method, designs unique conformal array eddy current testing device, restrained effectively turnout rail surface roughness and probe lift-off
Interference to signal overcomes the surface crack testing limitation to track switch different directions, improves and lacks to track switch surface and near surface
Sunken precision and efficiency of detecting can disposably complete the scanning of large area, and carry out imaging to testing result and show.
The technical solution adopted by the present invention to solve the technical problems is: a kind of dedicated conformal array EDDY CURRENT dress of track switch
It sets, device includes multiple eddy current probes, multiple micro- magnet blocks, a plurality of elastic wire, the fixed bracket of conformal chain-type, visits
Bar, handle, probe wire, multichannel swirl imaging detecting instrument, it is characterised in that: the multiple eddy current probe, Duo Gewei
Magnet block, a plurality of elastic wire, wherein each eddy current probe combines fixation, each group of vortex with a micro- magnet block
The micro- magnet block combination of detection probe-is fixed on one end of an elastic wire, and the other end of each elastic wire is fixed on suitable
In chain member in the fixed bracket of shape chain-type；Micro- magnet block has micromagnetism；The fixed bracket of conformal chain-type
It is made of multiple chain members, the fixed bracket of conformal chain-type can bend to arbitrary shape on its section, and keep it upon bending
Curved shape is constant；One end of the feeler lever is fixed in one chain member of the fixed bracket of conformal chain-type, and the other end of feeler lever is solid
Surely there is handle；Multiple eddy current probes are electrically connected by probe wire with multichannel swirl imaging detecting instrument.
A kind of dedicated conformal array eddy current detection method of track switch, includes the following steps,
A. the support bracket fastened shape of conformal chain-type in testing staff's regulating device keeps its curved shape and track switch tested
Facial contour is close；Elastic wire is in track switch plane was seized profile variations, the micro- magnet block combination of auxiliary eddy current probe-and track switch
Plane was seized fitting；
The eddy current probe-of device micro- magnet block combination end is placed in by the b. handle in testing staff's hand-held device
Trouble plane was seized, micro- magnet block will be adsorbed in track switch plane was seized, and the detection of fixed eddy current probe is combined with micro- magnet block
It is close to track switch plane was seized in face；
C. multichannel swirl imaging detecting instrument is opened, multichannel swirl imaging detecting instrument motivates multiple eddy current probes,
Testing staff's hand-held device handle, pull unit are moved along track switch plane was seized；Since micro- magnet block has micromagnetism, therefore examining
When survey personnel pull unit is moved along track switch plane was seized, micro- magnet block guarantees the spy of the eddy current probe of fixation in combination
Survey face is tightly attached in track switch plane was seized mobile scanning, stablizes during mobile scanning, without shaking and lift-off, meanwhile, micro- magnet block
Magnetize track switch plane was seized, improves EDDY CURRENT penetration depth；
D. during device scanning, multichannel swirl imaging detecting instrument receives the detection letter of multiple eddy current probe acquisitions
Number signal processing is carried out, and shows, store testing result, have by eddy current signal imaging and sound-light alarm judgement track switch detection faces
Zero defect and defect shape and trend.
The invention has the advantages that providing a kind of dedicated conformal array eddy current testing device of track switch and method, design is only
Special conformal array eddy current testing device restrained effectively turnout rail surface roughness and interference of the lift-off to signal of popping one's head in, gram
The surface crack testing limitation to track switch different directions is taken, detection accuracy and effect to track switch surface and near surface flaw are improved
Rate can disposably complete the scanning of large area, and carry out imaging to testing result and show.
Invention is further described in detail with reference to embodiments, but the dedicated conformal array of a kind of track switch of the invention
Eddy current testing device and method are not limited to the embodiment.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic device of the embodiment of the present invention.
Fig. 2 is the fixed any curved schematic of bracket of conformal chain-type in the device of the embodiment of the present invention.
Fig. 3 is the track switch detection schematic diagram of the embodiment of the present invention.
Fig. 4 is the eddy current signal imaging schematic diagram of the embodiment of the present invention.
In figure, 1. eddy current probes, 2. micro- magnet blocks, 3. elastic wires, the fixed bracket of 4. conformal chain-types, 5. are visited
Bar, 6. handles, 7. probe wires, 8. multichannel swirl imaging detecting instruments, 9. track switch detection faces, C defect shape and trend.
Specific embodiment
Embodiment shown in being as shown in Figure 1, Figure 2, a kind of dedicated conformal array eddy current testing device of track switch, device includes multiple
Eddy current probe 1, multiple micro- magnet blocks 2, a plurality of elastic wire 3, conformal chain-type fixed bracket 4, handle 6, are visited feeler lever 5
Head conducting wire 7, multichannel swirl imaging detecting instrument 8, it is characterised in that: the multiple eddy current probe 1, multiple micro- magnet blocks 2,
A plurality of elastic wire 3, wherein each eddy current probe 1 combines fixation, each group of EDDY CURRENT with a micro- magnet block 2
The micro- magnet block 2 of probe 1- combines the one end for being fixed on an elastic wire 3, and the other end of each elastic wire 3 is fixed on suitable
In chain member in the fixed bracket 4 of shape chain-type；Micro- magnet block 2 has micromagnetism；The fixed branch of conformal chain-type
Frame 4 is made of multiple chain members, and the fixed bracket 4 of conformal chain-type can bend to arbitrary shape on its section, and protect upon bending
It is constant to hold its curved shape；One end of the feeler lever 5 is fixed in 4 one chains members of the fixed bracket of conformal chain-type, feeler lever 5 it is another
One end is fixed with handle 6；Multiple eddy current probes 1 are electrically connected by probe wire 7 with multichannel swirl imaging detecting instrument 8.
As shown in figure 3, a kind of dedicated conformal array eddy current detection method of track switch, includes the following steps,
A. the shape of the fixed bracket 4 of the conformal chain-type in testing staff's regulating device, makes its curved shape and track switch quilt
9 profile of inspection face is close；Elastic wire 3 assists micro- 2 groups of magnet block of eddy current probe 1- in track switch 9 profile variations of plane was seized
Conjunction is bonded with track switch plane was seized 9；
B. the handle 6 in testing staff's hand-held device the micro- magnet block 2 of the eddy current probe 1- of device combines end and is placed in
Track switch plane was seized 9, micro- magnet block 2 will be adsorbed in track switch plane was seized, and fixed eddy current probe 1 is combined with micro- magnet block 2
Test surface be close to track switch plane was seized 9；
C. multichannel swirl imaging detecting instrument 8 is opened, multichannel swirl imaging detecting instrument 8 motivates multiple eddy current probes
1, testing staff's hand-held device handle 6, pull unit is moved along track switch plane was seized 9；Since micro- magnet block 2 has micromagnetism,
Therefore when testing staff's pull unit is moved along track switch plane was seized 9, micro- magnet block 2 guarantees the EDDY CURRENT of fixation in combination
The test surface of probe 1 is tightly attached in track switch plane was seized 9 mobile scanning, stablizes during mobile scanning, without shaking and lift-off, together
When, micro- magnet block 2 magnetizes track switch plane was seized 9, improves EDDY CURRENT penetration depth；
D. during device scanning, multichannel swirl imaging detecting instrument 8 receives the detection that multiple eddy current probes 1 acquire
Signal carries out signal processing, and shows, stores testing result, determines track switch detection faces by eddy current signal imaging and sound-light alarm
There are zero defect and defect shape and move towards C, as shown in Figure 4.
Above-described embodiment be only used to further illustrate a kind of dedicated conformal array eddy current testing device of track switch of the invention and
Method, but invention is not limited to embodiment, any letter to the above embodiments according to the technical essence of the invention
Single modification, equivalent variations and modification, fall within the scope of protection of technical solution of the present invention.
Claims (2)
1. a kind of dedicated conformal array eddy current testing device of track switch, device include multiple eddy current probes, multiple micro- magnet blocks,
A plurality of elastic wire, conformal chain-type fixed bracket, feeler lever, handle, probe wire, multichannel swirl imaging detecting instrument, it is special
Sign is: the multiple eddy current probe, multiple micro- magnet blocks, a plurality of elastic wire, wherein each eddy current probe
Fixation is combined with a micro- magnet block, the micro- magnet block combination of each group of eddy current probe-is fixed on the one of an elastic wire
End, the other end of each elastic wire are fixed in the chain member in the fixed bracket of conformal chain-type；Micro- magnet block
With micromagnetism；The fixed bracket of conformal chain-type is made of multiple chain members, and the fixed bracket of conformal chain-type can be in its section
On bend to arbitrary shape, and keep its curved shape constant upon bending；One end of the feeler lever is fixed on conformal chain-type
In one chain member of fixed bracket, the other end of feeler lever is fixed with handle；Multiple eddy current probes pass through probe wire and multi-pass
The electrical connection of road vortex imaging detector.
2. a kind of dedicated conformal array eddy current detection method of track switch, using device described in claim 1, it is characterised in that: packet
Include following steps,
A. the support bracket fastened shape of conformal chain-type in testing staff's regulating device, makes its curved shape and track switch plane was seized wheel
It is wide close；For elastic wire in track switch plane was seized profile variations, the micro- magnet block combination of auxiliary eddy current probe-and track switch are tested
Face paste is closed；
The eddy current probe-of device micro- magnet block combination end is placed in track switch quilt by the b. handle in testing staff's hand-held device
Inspection face, micro- magnet block will be adsorbed in track switch plane was seized, and the test surface that fixed eddy current probe is combined with micro- magnet block is tight
Paste track switch plane was seized；
C. multichannel swirl imaging detecting instrument is opened, multichannel swirl imaging detecting instrument motivates multiple eddy current probes, detection
Personnel's hand-held device handle, pull unit are moved along track switch plane was seized；Since micro- magnet block has micromagnetism, therefore in detection people
When member's pull unit is moved along track switch plane was seized, micro- magnet block guarantees the test surface of the eddy current probe of fixation in combination
It is tightly attached in track switch plane was seized mobile scanning, is stablized during mobile scanning, without shaking and lift-off, meanwhile, micro- magnet block magnetization
Track switch plane was seized improves EDDY CURRENT penetration depth；
D. during device scanning, multichannel swirl imaging detecting instrument receive the detection signal of multiple eddy current probes acquisition into
Row signal processing, and show, store testing result, it is intact to determine that track switch detection faces have by eddy current signal imaging and sound-light alarm
Sunken and defect shape and trend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511014390.9A CN105445364B (en) | 2015-12-31 | 2015-12-31 | A kind of dedicated conformal array eddy current testing device of track switch and method |
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| CN201511014390.9A CN105445364B (en) | 2015-12-31 | 2015-12-31 | A kind of dedicated conformal array eddy current testing device of track switch and method |
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| CN105445364B true CN105445364B (en) | 2019-01-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106066363B (en) * | 2016-07-28 | 2023-04-28 | 中国铁道科学研究院金属及化学研究所 | Switch rail vortex shape detection device |
| CN107219299A (en) * | 2017-06-02 | 2017-09-29 | 爱德森（厦门）电子有限公司 | It is a kind of with Steel Structure Weld crackle monitoring device and method |
| CN109444259B (en) * | 2018-12-21 | 2024-02-20 | 核动力运行研究所 | Special-shaped pipe adsorption type eddy current array probe |
| CN110609080B (en) * | 2019-10-30 | 2023-04-28 | 爱德森（厦门）电子有限公司 | Turnout longitudinal defect vortex detection device and method |
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| CN102431577B (en) * | 2011-10-19 | 2014-08-06 | 赵建明 | Monitoring technology of eddy current sensor for gap of turnout gap detection column and detection block |
| CN205280661U (en) * | 2015-12-31 | 2016-06-01 | 爱德森（厦门）电子有限公司 | Special shape array eddy current inspection device of fitting of switch |
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