CN109975389A - A kind of rail leakage magnetic detection device and method - Google Patents
A kind of rail leakage magnetic detection device and method Download PDFInfo
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- CN109975389A CN109975389A CN201910340670.0A CN201910340670A CN109975389A CN 109975389 A CN109975389 A CN 109975389A CN 201910340670 A CN201910340670 A CN 201910340670A CN 109975389 A CN109975389 A CN 109975389A
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- 238000001514 detection method Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000007547 defect Effects 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 claims abstract 2
- 238000007689 inspection Methods 0.000 claims description 14
- 230000001012 protector Effects 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
Abstract
The invention belongs to rail vehicles to repair mechanical equipment technical field, and disclose a kind of rail leakage magnetic detection device and method.Described includes detection trolley and leakage magnetic detection device, detection trolley includes vehicle-mounted workstation and driving axle box, leakage magnetic detection device includes support frame, screw rod, driving cabinet and magnetic leakage detector, magnetic leakage detector includes magnet arrangement and Hall sensor, Hall sensor is used to magnetic signal changing into electric signal, and by electric signal transmission to vehicle-mounted workstation, the electric signal is handled by vehicle-mounted workstation, to judge defect existing for rail.The invention also discloses corresponding detection methods.The present invention drives rail by staff and detects trolley, the leakage magnetic detection device that control is installed on detection trolley two sides carries out flaw indication acquisition to rail, online processing is carried out to signal by vehicle-mounted workbench again, realize the real-time monitoring of steel rail defect, to take maintenance measure, the operational safety of high-speed rail ensure that.
Description
Technical field
The invention belongs to rail vehicles to repair mechanical equipment technical field, more particularly, to a kind of rail Magnetic Flux Leakage Inspecting
Device and method.
Background technique
With a large amount of construction and operation of China express railway, China railways operation total kilometrage breaks through 130,000 kilometers, railway
Transport production supports route and repairs operation mode and put forward new requirements.It is original to carry out route inspection using the Train Interval time-division
The operation mode looked into, existing skylight operation mode is substituted.And operating speed is only the hand propelled defectoscope of 2km/h in 3-
Detection efficiency is low in 4h Window time, and a large amount of manpower is needed be segmented while detecting.Railway transportation be communication and logistics and
The main artery of national economy, rail are the basic building blocks of the railway system, play a part of supporting train, to guarantee safe operation,
Stringent quality inspection requirements is proposed to the manufacturing producer of rail.
Therefore large-scale rail-defect detector car largely has been introduced from foreign countries in recent years, has become the master of existing railway rail examination
Angle.But high cost of equipment and configuration lazy weight is the new problem that current work business system faces.Meanwhile in the prior art
In, hurt detection in rail head of rail top surface now relies primarily on the detection of man-hour manually hand-held formula equipment or the detection of SPEED VISION detection technique.Its
Middle man-hour manually hand-held formula detection device detection efficiency is low, can not meet the modern railways demand of high speed development.SPEED VISION detects skill
Art can not detect rail head of rail sub-surface hurt, and detection accuracy is low.In this context, a kind of detection efficiency is researched and developed to be higher than
The self-propelled leakage magnetic detection device that traditional hand propelled defectoscope, cost are far below large-scale rail-defect detector car again is necessary.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention drives rail by staff and detects trolley,
The leakage magnetic detection device that control is installed on detection trolley two sides carries out flaw indication acquisition to rail, then passes through vehicle-mounted workbench pair
Signal carries out online processing, realizes the real-time monitoring of steel rail defect, to take maintenance measure, ensure that the operation peace of high-speed rail
Entirely.
To achieve the goals above, according to one aspect of the present invention, a kind of rail leakage magnetic detection device, feature are provided
It is, including detection trolley and leakage magnetic detection device, wherein
The detection trolley includes vehicle-mounted workstation and driving axle box, and first motor is equipped in the driving axle box, is used
In the driving detection moving of car；
The leakage magnetic detection device includes support frame, screw rod, driving cabinet and magnetic leakage detector, the two sides of support frame as described above
Be respectively equipped with screw rod, each screw rod passes through support frame as described above, and one end is connect with the driving cabinet, the other end with it is described
Magnetic leakage detector is fixedly connected, and then in the case where being set to the driving effect of the second motor of the driving cabinet inside, described in drive
Magnetic leakage detector moves up and down；
The magnetic leakage detector includes magnet arrangement and Hall sensor, and described magnet arrangement one end is fixed with the screw rod
Connection, the other end are provided with Hall sensor, and the Hall sensor is used to magnetic signal changing into electric signal, and electric signal is passed
It is defeated by vehicle-mounted workstation, the electric signal is handled by vehicle-mounted workstation, to judge defect existing for rail.
Further, the magnet arrangement is concave, and the Hall sensor is arranged in the groove of the concave.
Further, the magnetic leakage detector further includes steel brush, and the steel brush is symmetricly set on the raised table of the concave
Face.
Further, the screw rod is vertically arranged with support frame as described above.
Further, the magnet arrangement is electromagnet or permanent magnet.
Further, the detection trolley further includes car light and anticollision corner protector.
Further, the detection trolley further includes wheel, and the wheel is set as I-shaped, the I-shaped lucky energy
Realize the clamping with rail.
Further, the detection trolley further includes vehicle power supply.
Other side according to the invention provides a kind of detection method using the leakage magnetic detection device, feature
It is, comprising the following steps:
S1 moves the detection trolley to position to be detected；
S2 controls the second motor of driving cabinet inside by vehicle-mounted workbench to drive magnetic leakage detector to reach specified area
Domain；
Steel brush described in S3 clears up rail to be detected；
Magnet arrangement described in S4 magnetizes rail to be detected, and Hall sensor carries out magnetic signal double at the same time
Channel signal acquisition, and the double-channel signal acquired feeds back to vehicle-mounted workbench；
The vehicle-mounted workbench of S5 handles the double-channel signal, with judge rail whether leakage field, if it is not, then continue into
Other positions of row check, if so, record position information, continues the inspection of other positions.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) present invention drives rail by staff and detects trolley, and control is installed on the leakage field inspection of detection trolley two sides
It surveys device and flaw indication acquisition is carried out to rail, then online processing is carried out to signal by vehicle-mounted workbench, realize steel rail defect
Real-time monitoring ensure that the operational safety of high-speed rail to take maintenance measure.
(2) magnet arrangement of the present invention is concave, and the Hall sensor is arranged in the groove of the concave, one side energy
On the other hand enough magnetization realized to rail can facilitate Hall sensor to receive electromagnetic signal, and convert electromagnetic signal to
Electric signal, while also helping and protecting Hall sensor not frayed.
(3) magnetic leakage detector of the present invention further includes steel brush, for cleaning Rail Surface with water, the subsequent detection of aspect, meanwhile, it will
Magnet arrangement and detected rail from a distance, prevent it from adsorbing tension with rail, influence to detect trolley overall movement inspection
Survey process.
(4) present invention is additionally provided with car light and anticollision corner protector, and then under the situation that illumination is insufficient or light is bad
It can be carried out Detection task, simultaneously, moreover it is possible to when detection device of the present invention collides, play a protective role.
(5) wheel of the present invention is set as I-shaped, the I-shaped clamping being able to achieve just with rail, and then can make whole
The detection process of body device can be carried out steadily safely.
(6) detection method of the invention realizes that the comprehensive magnetic leakage to rail detects, easy to operate, securely and reliably, equipment
Expense is low, greatly reduces the labor intensity of artificial detection.
Detailed description of the invention
Fig. 1 is a kind of three dimensional structure diagram of rail leakage magnetic detection device of the embodiment of the present invention；
Fig. 2 is a kind of side view of rail leakage magnetic detection device of the embodiment of the present invention；
Fig. 3 is a kind of leakage magnetic detection device structural schematic diagram that rail leakage magnetic detection device is related to of the embodiment of the present invention；
Fig. 4 is a kind of structural representation of (d) magnetic leakage detecting probe that rail leakage magnetic detection device is related to of the embodiment of the present invention
Figure.
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1- detects trolley；1- inspection
Survey trolley；101- vehicle-mounted workstation；102- vehicle power supply；103- drives axle box；104- car light；105- anticollision corner protector；106- vehicle
Wheel；2- staff；3- leakage magnetic detection device；301- support frame；302- screw rod；303- drives cabinet；304- magnet arrangement；
305- steel brush；306- Hall sensor.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
As Figure 1-Figure 4, a kind of rail leakage magnetic detection device of the present invention includes detecting trolley 1 and leakage magnetic detection device 3,
Trolley 1 wherein, is detected mainly as the carrier of detection device and staff, while being equipped with power supply and vehicle-mounted workstation etc..
Detecting trolley 1 mainly includes vehicle-mounted workstation 101, vehicle power supply 102, driving axle box 103, car light 104,105 and of anticollision corner protector
Wheel 106.Wherein, vehicle-mounted workstation 101 is for controlling detection trolley mass motion and detection device operation, while to detecting
The result arrived carries out Real time displaying and processing；Vehicle power supply 102 drives axle box 103 for being powered to entire detection device
Built-in motor, for driving car wheel to advance, the illumination of the environment poor for light of car light 104, anticollision corner protector 105 is used for
Protection detection device collides with other things.In apparatus of the present invention, in order to cooperate rail to detect, wheel 106 is set as work
Font, this it is I-shaped it is lucky rail can be clamped so that single unit system is capable of moving along rail to be detected for safety and steady.
In order to further facilitate manual operation inspection vehicle, correspondingly, several seats for staff's seating are arranged on detection trolley 1
Chair, the seat are oppositely arranged with the vehicle-mounted workstation 101, and then staff is facilitated to operate vehicle-mounted workstation 101.This hair
Bright to drive rail detection trolley by staff, the leakage magnetic detection device that control is installed on detection trolley two sides carries out rail
Flaw indication acquisition, then online processing is carried out to signal by vehicle-mounted workbench, the real-time monitoring of steel rail defect is realized, to adopt
Maintenance measure is taken, ensure that the operational safety of high-speed rail.In addition, be additionally provided with car light and anticollision corner protector, so illumination it is insufficient or
It also can be carried out Detection task under the bad situation of person's light, simultaneously, moreover it is possible to when detection device of the present invention collides, play guarantor
Shield effect.Further, wheel is set as I-shaped, the I-shaped clamping being able to achieve just with rail, and then can make whole
The detection process of body device can be carried out steadily safely.
Leakage magnetic detection device 3 is based on magnetic flux leakage theory and detects to steel rail defect.Leakage magnetic detection device 3 includes support frame
301, screw rod 302, driving cabinet 303, magnet arrangement 304, steel brush 305, Hall sensor 306.Wherein, support frame 301 and inspection
Trolley connection is surveyed, so that whole leakage magnetic detection device 3 is fixed thereon, screw rod 302 is for controlling detection device or more
Movement drives the second motor built in cabinet 303 to connect with screw drive, and driving screw rod moves up and down, and magnet arrangement 304 is electromagnetism
Iron device or permanent magnet device, steel brush 305 can also be replaced with wood brush, and for one side for cleaning Rail Surface with water, aspect is subsequent
Detection；On the other hand for magnet arrangement 304 and detected rail from a distance, to be prevented to itself and rail absorption tension,
It influences detection trolley and moves integrally detection process, Hall sensor 306 is used to magnetic signal changing into electric signal, and signal is transferred to
Vehicle-mounted workstation is handled signal by vehicle-mounted workstation, to judge defect existing for rail.Magnetic leakage inspection of the present invention
Surveying device further includes steel brush, for cleaning Rail Surface with water, the subsequent detection of aspect, meanwhile, by magnet arrangement and detected rail every
A distance is opened, prevents it from adsorbing tension with rail, influences to detect trolley overall movement detection process.
Specifically, being provided with vehicle power supply 102, driving axle box 103, car light 104 and anticollision on the detection trolley 1
Corner protector 105, simultaneously with this, whole trolley carries out inspection vehicle to rail to be detected during traveling for convenience, the present invention
In, leakage magnetic detection device 3 realizes mobilizable connection by its screw rod 302 and support frame as described above 301, and one end of screw rod 302 is logical
Cabinet 303 of overdriving is connect with support frame as described above 301, is equipped with the second motor in the driving cabinet 303, and then in the second motor
Driving effect under, screw rod 302 can move up and down.The lower end of screw rod 302 is fixedly connected with the magnet arrangement 304, a side
Face is used for fixed magnet device 304, facilitates detection, on the other hand, can dismantle at any time, aspect maintenance and cleaning, the magnet
Device 304 is concave structure, and the two sides of 304 protrusion of magnet arrangement are arranged in the steel brush 305, for cleaning rail table with water
Face, the subsequent detection of aspect, meanwhile, from a distance with detected rail by electromagnet or permanent magnet, prevent itself and rail
Tension is adsorbed, influences to detect trolley overall movement detection process.Hall sensor of the invention is arranged in the magnet arrangement 304
Groove in, for magnetic signal to be changed into electric signal, signal is transferred to vehicle-mounted workstation, by vehicle-mounted workstation to signal into
Row processing, to judge defect existing for rail.Magnet arrangement of the present invention is concave, and the Hall sensor is arranged described
In the groove of concave, the magnetization to rail on the one hand can be realized, on the other hand, Hall sensor can be facilitated to receive electromagnetism letter
Number, and electric signal is converted by electromagnetic signal, while also helping and protecting Hall sensor not frayed.
In the present invention, it is preferred to, screw rod 302 has multiple, and the lower end of each screw rod 302 is correspondingly arranged on magnet arrangement
304, steel brush 305 and Hall sensor 306.And then can be realized and multiple positions of rail are carried out while being detected, improve detection
Efficiency.
This programme is equipped with mould by designing a kind of mobile detection trolley of manned railway, and in the two sides of mobile detection trolley
Block leakage magnetic detection device can collect the flaw indication of rail rail level in real time, detect the vehicle-mounted workbench pair of trolley by mobile
Signal is handled the real-time detection, it can be achieved that in-service steel rail defect in real time.Solves large-scale rail-defect detector car cost of equipment
High and configuration lazy weight predicament.
Work step of the invention is as follows, the mobile detection trolley of S1 to position to be detected；S2 passes through vehicle-mounted workbench
Second motor of control driving cabinet inside is to drive magnetic leakage detector to reach specified region；Steel brush described in S3 is to steel to be detected
Rail is cleared up；Magnet arrangement described in S4 magnetizes rail to be detected, at the same time Hall sensor to magnetic signal into
The acquisition of row double-channel signal, and the double-channel signal acquired feeds back to vehicle-mounted workbench；The vehicle-mounted workbench of S5 is to described double
Channel signal is handled, with judge rail whether leakage field, if it is not, then continue other positions inspection, if so, record position
Confidence breath continues the inspection of other positions.
Specifically, the detection operation of the motion work and leakage magnetic detection device of rail Magnetic Flux Leakage Inspecting trolley is by vehicle-mounted work
Control processing is carried out as platform.Leakage magnetic detection device is installed on the two sides of rail Magnetic Flux Leakage Inspecting trolley, can be controlled thereon by screw rod
Lower movement.Wherein, specific detection process is as follows: controlling detection device by screw rod and moves down, until the steel of detection device
Stop moving down after brushing the rail level for touching rail, detection trolley, which slowly moves ahead, carries out detection operation.Pass through electromagnet/permanent magnet pair
Steel rail defect position is magnetized, and carries out binary channels to magnetic leakage signal by two Hall sensors being built under magnet later
Signal acquisition, data collected are uploaded to vehicle-mounted workbench and carry out online processing, realize the real-time monitoring to steel rail defect.
It after detection terminates, is moved upwards by screw rod, makes detection device far from rail, to stop detecting operation.
Rail is driven by staff and detects trolley, and control is installed on the leakage magnetic detection device of detection trolley two sides to steel
Rail carries out flaw indication acquisition, then carries out online processing to signal by vehicle-mounted workbench, realizes the real-time monitoring of steel rail defect,
To take maintenance measure, the operational safety of high-speed rail ensure that.
Detection method of the invention realizes that the comprehensive magnetic leakage to rail detects, easy to operate, securely and reliably, cost of equipment
It is low, greatly reduce the labor intensity of artificial detection.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of rail leakage magnetic detection device, which is characterized in that including detection trolley (1) and leakage magnetic detection device (3), wherein
The detection trolley (1) includes vehicle-mounted workstation (101) and driving axle box (103), and is set in the driving axle box (103)
There is first motor, for driving the detection trolley (1) to move；
The leakage magnetic detection device (3) includes support frame (301), screw rod (302), driving cabinet (303) and magnetic leakage detector, institute
The two sides for stating support frame (301) are respectively equipped with screw rod (302), and each screw rod (302) passes through support frame as described above (301), and
One end is connect with the driving cabinet (303), and the other end is fixedly connected with the magnetic leakage detector, and then is being set to the driving
Under the driving effect of the second internal motor of cabinet (303), the magnetic leakage detector is driven to move up and down；
The magnetic leakage detector includes magnet arrangement (304) and Hall sensor (306), described magnet arrangement (304) one end with
The screw rod (302) is fixedly connected, and the other end is provided with Hall sensor (306), and the Hall sensor (306) is used for magnetic
Signal changes into electric signal, and gives electric signal transmission to vehicle-mounted workstation (101), by vehicle-mounted workstation (101) to the telecommunications
It number is handled, to judge defect existing for rail.
2. rail leakage magnetic detection device according to claim 1, which is characterized in that the magnet arrangement (304) is concave,
The Hall sensor (306) is arranged in the groove of the concave.
3. rail leakage magnetic detection device according to claim 1 or 2, which is characterized in that the magnetic leakage detector further includes
Steel brush (305), the steel brush (305) are symmetricly set on the convex surfaces of the concave.
4. rail leakage magnetic detection device according to claim 1-3, which is characterized in that the screw rod (302) with
Support frame as described above (301) is vertically arranged.
5. rail leakage magnetic detection device according to claim 1-4, which is characterized in that the magnet arrangement
It (304) is electromagnet or permanent magnet.
6. rail leakage magnetic detection device according to claim 1-5, which is characterized in that the detection trolley (1)
It further include car light (104) and anticollision corner protector (105).
7. rail leakage magnetic detection device according to claim 1-6, which is characterized in that the detection trolley (1)
It further include wheel (106), and the wheel (106) is set as I-shaped, the I-shaped clamping being able to achieve just with rail.
8. rail leakage magnetic detection device according to claim 1-7, which is characterized in that the detection trolley (1)
It further include vehicle power supply (102).
9. a kind of rail flux-leakage detection method, which is characterized in that application rail Magnetic Flux Leakage Inspecting as described in claim any one of 1-8
Device is realized, comprising the following steps:
The mobile detection trolley (1) of S1 extremely position to be detected；
S2 controls the second internal motor of driving cabinet (303) by vehicle-mounted workbench (101) to drive magnetic leakage detector to reach
Specified region；
Steel brush described in S3 (305) clears up rail to be detected；
Magnet arrangement described in S4 (304) magnetizes rail to be detected, and Hall sensor carries out magnetic signal at the same time
Double-channel signal acquisition, and the double-channel signal acquired feeds back to vehicle-mounted workbench (101)；
The vehicle-mounted workbench of S5 (101) handles the double-channel signal, with judge rail whether leakage field, if it is not, then continuing
Other position inspections are carried out, if so, record position information, continues the inspection of other positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910340670.0A CN109975389A (en) | 2019-04-25 | 2019-04-25 | A kind of rail leakage magnetic detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910340670.0A CN109975389A (en) | 2019-04-25 | 2019-04-25 | A kind of rail leakage magnetic detection device and method |
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| CN201910340670.0A Pending CN109975389A (en) | 2019-04-25 | 2019-04-25 | A kind of rail leakage magnetic detection device and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549005B1 (en) * | 1996-05-17 | 2003-04-15 | Technological Resources Pty. Ltd. | Magnetic detection of discontinuities in railway rails using hall effect sensors |
| CN104698074A (en) * | 2015-03-25 | 2015-06-10 | 西南石油大学 | Wall-climbing device for magnetic leakage detection on wall defects of storage tank and measurement method |
| CN205982170U (en) * | 2016-09-06 | 2017-02-22 | 中国铁道科学研究院 | On -vehicle rail surface hurt magnetic flux leakage detection's equipment and system |
| CN206292206U (en) * | 2016-11-29 | 2017-06-30 | 张家港思振电子科技有限公司 | A kind of automobile-used detection probe of rail examination based on Magnetic Flux Leakage Inspecting |
| CN107643338A (en) * | 2017-08-25 | 2018-01-30 | 上海市特种设备监督检验技术研究院 | A kind of experimental provision for being used to evaluate Pipeline Magnetic Flux Leakage Inspection performance |
| CN108872361A (en) * | 2018-05-04 | 2018-11-23 | 南京航空航天大学 | A kind of device of stable acquisition magnetic leakage signal |
| CN209946069U (en) * | 2019-04-25 | 2020-01-14 | 中铁第四勘察设计院集团有限公司 | Steel rail magnetic flux leakage detection device |
-
2019
- 2019-04-25 CN CN201910340670.0A patent/CN109975389A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549005B1 (en) * | 1996-05-17 | 2003-04-15 | Technological Resources Pty. Ltd. | Magnetic detection of discontinuities in railway rails using hall effect sensors |
| CN104698074A (en) * | 2015-03-25 | 2015-06-10 | 西南石油大学 | Wall-climbing device for magnetic leakage detection on wall defects of storage tank and measurement method |
| CN205982170U (en) * | 2016-09-06 | 2017-02-22 | 中国铁道科学研究院 | On -vehicle rail surface hurt magnetic flux leakage detection's equipment and system |
| CN206292206U (en) * | 2016-11-29 | 2017-06-30 | 张家港思振电子科技有限公司 | A kind of automobile-used detection probe of rail examination based on Magnetic Flux Leakage Inspecting |
| CN107643338A (en) * | 2017-08-25 | 2018-01-30 | 上海市特种设备监督检验技术研究院 | A kind of experimental provision for being used to evaluate Pipeline Magnetic Flux Leakage Inspection performance |
| CN108872361A (en) * | 2018-05-04 | 2018-11-23 | 南京航空航天大学 | A kind of device of stable acquisition magnetic leakage signal |
| CN209946069U (en) * | 2019-04-25 | 2020-01-14 | 中铁第四勘察设计院集团有限公司 | Steel rail magnetic flux leakage detection device |
Non-Patent Citations (3)
| Title |
|---|
| 张玉良 等: "漏磁检测的仿真和实验研究", vol. 25, no. 08, pages 29 - 31 * |
| 徐其瑞 等: "基于大型钢轨探伤车的顶面伤损漏磁检测技术研究", 《中国铁路》, pages 39 - 44 * |
| 王长龙 等: "《漏磁检测的缺陷可视化技术》", 国防工业出版社, pages: 29 - 30 * |
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