CN104359983B - The center support system and method for a kind of steel rail flaw detection device - Google Patents
The center support system and method for a kind of steel rail flaw detection device Download PDFInfo
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- CN104359983B CN104359983B CN201410608424.6A CN201410608424A CN104359983B CN 104359983 B CN104359983 B CN 104359983B CN 201410608424 A CN201410608424 A CN 201410608424A CN 104359983 B CN104359983 B CN 104359983B
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007689 inspection Methods 0.000 abstract description 9
- 239000000523 sample Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 10
- 230000007547 defect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000006399 behavior Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention provides a kind of center support system of steel rail flaw detection device and method, steel rail flaw detection device includes ultrasonic wave and visits wheel, and system includes：Sensor, the outline data for gathering rail；Control module, for determining that the ultrasonic wave visits the deviation of wheel and rail center line according to the wide data of the rail；Servo-driver, visits wheel for the ultrasonic wave according to the deviation adjusting and realizes centering.The present invention realizes the centering under rail-defect detector car high-speed cruising, overcomes using the low shortcoming of dolly inspection speed is hung under large-scale rail-defect detector car, realizes the rail examination under high-speed cruising, improve operating efficiency.
Description
Technical field
Concretely it is the center support system and method for a kind of steel rail flaw detection device the present invention relates to detection technique.
Background technology
The function of rail is that guiding wheel of vehicle advances, and bears the immense pressure from wheel.In-service rail is for a long time
Rolling repeatedly for wheel is born, inevitably there is fatigue defect and defect.Therefore in order to ensure the safe operation of locomotive,
Need often to carry out in-service rail carrying out flaw detection, the hurt for having in rail is found in time, to adopt remedial measures, take precautions against
In possible trouble.
Ultrasonic rail inspection car is the ultrasonic echo that is reflected according to rail defects and failures to detect rail defects and failures, uses ultrasound
When ripple probe carries out rail examination, it is necessary to 0 degree of ultrasonic probe is directed at the geometric center lines of rail section.Work as ultrasonic probe
When being directed at rail section center line, if as shown in figure 1, rail does not have hurt, ultrasonic probe can receive stronger
Flange of rail echo (bottom ripple) signal, if rail has hurt ultrasonic probe to receive hurt echo-signal, so as to detect tapping
The hurt of rail；And when ultrasonic probe deviates rail, as shown in Fig. 2 bottom ripple signal intensity will weaken or even disappear, thus
It is difficult to or even rail defects and failures can not be detected.
Due to circuit irregularity and wheel to serpentine locomotion, rail-defect detector car detect a flaw on the line traveling when it is inevitable
Ground will have yaw, yaw motion, if ultrasonic probe is directly installed on inspection car car body, and this transverse movement of car body makes to surpass
Sonic probe is difficult to be directed at rail, and the catenary motion of car body is also very big, and ultrasonic probe also is difficult to adapt to.
In the prior art, to reduce influence of the vertical and transverse movement of car body to ultrasonic inspection, ultrasonic probe is general
All it is arranged on flaw detection traveling dolly, the motion of transverse direction and catenary motion compared with inspection car car body of traveling dolly is much smaller.For
Ultrasonic probe is directed at rail, use the mechanical expanding wheel construction of changeable wheelbase more low speed flaw detection trolley.As shown in figure 3, when give with
The rear end of track cylinder 301 passes to the compressed gas of certain pressure, and cylinder just acts on pressure on the wheel that rises on 302, so that rising
Take turns to wheel rim be close to all the time on the inside of the rail head of rail 303, the wheel that so rises is directed at rail center to center all the time, and visits wheel
Frame Shang Tanlun centers and Zhang Lundui centers are in same longitudinal surface, therefore ensure that spy wheel median plane and rail median plane
Overlap, so as to realize probe centering.
The centering by the way of mechanical expanding wheel, though it is simple and reliable for structure, it can be realized when detecting a flaw the operation of traveling dolly low speed
Good centering requirement, but with the raising of the speed of service, the lateral movement velocity for the wheel that rises is improved therewith, due to laterally accelerating
Degree is increased with the square law of speed, so horizontal centering active force of the probe to needed for can be fast with the raising of speed
Speed increase.When the inspection car speed of service brings up to 80km/h by 40km/h, the lateral movement velocity of dolly is original 2 times,
And horizontal centering active force is then original 4 times, this very big cross force is very not for the safe traveling of flaw detection trolley
Profit.
Further, in the prior art, to realize rail examination under the conditions of high-speed cruising, steel rail flaw detection device, which is arranged on, to be turned to
Below frame, the position deviation for visiting wheel and rail center line is measured using electromagnetic sensor, servo control mechanism control visits wheel on rail
Lateral attitude.
The possible metering system of electromagnetic sensor has current vortex sensor group and differential transformer two ways, shown in Fig. 4
Current vortex sensor group centering schematic diagram, differential transformer centering schematic diagram as shown in Figure 5.
Horizontal centering sensor using Fig. 4 current vortex sensor group is inclined with the output signal of two current vortex sensors
Difference reflects laterally opposed deviation, when sensor group is to rail center, and the output voltage of two eddy current probes is consistent, voltage
Deviation is 0, and the output signal that sensor group deviates two eddy current probes in rail center just has deviation, and sensor deviates rail
Center is more, then deviation output voltage is bigger, and two such current vortex sensor just constitutes a centering sensor.
When the differential transformer using Fig. 5, rail is just into the dynamic iron core for making differential transformer, such as on intermediate coil
Plus driving voltage, when sensor is to rail center, the induced voltage of two secondary windings is identical, when sensor deviates rail
When two secondary windings induced voltage will be variant, two secondary side induced voltage signal progress processing can be obtained by one
The output signal of individual reflection relative deviation.
In the prior art, using electromagnetic sensor measurement position deviation, servo control mechanism control visits wheel position and realizes centering
Mode, due to the laying of in-service steel rail line in the wild, exposes to the sun and rain, it is not possible to can produce corrosion with avoiding, electromagnetic sensor by
In with ferromagnetism, thus iron rust can be attracted come up and it is viscous on a sensor, after a period of time, will on electromagnetic sensor
Iron rust is stained with, causes electromagnetic sensor to fail, so as to cause center support system to fail.
The content of the invention
To be accurate, rapidly measure ultrasonic wave and visit position deviation between wheel and rail center line, and as little as possible by
The interference of external environment, the embodiments of the invention provide a kind of center support system of steel rail flaw detection device, steel rail flaw detection device includes
Ultrasonic wave visits wheel, and system includes：
Sensor, the outline data for gathering rail；
Control module, for determining that the ultrasonic wave visits the deviation of wheel and rail center line according to the wide data of the rail；
Servo-driver, visits wheel for the ultrasonic wave according to the deviation adjusting and realizes centering.
Meanwhile, present invention also offers a kind of centering method of steel rail flaw detection device, the steel rail flaw detection device includes super
Sound wave visits wheel, and described method includes：
Gather the wide data of rail of rail；
Determine that the ultrasonic wave visits the deviation of wheel and rail center line according to the wide data of the rail；
Ultrasonic wave visits wheel and realizes centering according to the deviation adjusting.
The present invention realizes the centering under rail-defect detector car high-speed cruising, overcomes to use and hangs small under large-scale rail-defect detector car
The low shortcoming of car inspection speed, realizes the rail examination under high-speed cruising, improves rail under operating efficiency, and high-speed cruising
Inspection car can be incorporated into service chart together with existing lorry, it is not necessary to carry out rail examination in the skylight phase, it is to avoid occupancy skylight
The time of phase, the substantial amounts of rail examination time is saved, the business efficiency of railway operation is substantially increased.Meanwhile, the present invention is suitable
The rail under a variety of rail types, a variety of behaviours in service is answered, is not influenceed by factors such as weather, in the rainy day, snowy day can normally be entered
Row carrying out flaw detection, practicality is good.The present invention substantially increases the recall rate of rail defects and failures, reduces because rail die misalignment goes out
Existing hurt rate of false alarm, can timely and accurately find there is hurt in in-service rail, to ensure that it is big that the safety of railway operation rises
Very big effect.
For the above and other objects, features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Schematic diagram of the ultrasonic probe at rail center when Fig. 1 is progress flaw detection measurement in the prior art；
The schematic diagram at ultrasonic probe lateral run-out rail center when Fig. 2 is progress flaw detection measurement in the prior art；
Fig. 3 is mechanical expanding wheel centering schematic diagram of the prior art；
Fig. 4 is current vortex sensor group centering schematic diagram of the prior art；
Fig. 5 is differential transformer centering schematic diagram of the prior art；
Fig. 6 is the schematic diagram of the center support system of steel rail flaw detection device disclosed by the invention；
Fig. 7 is the block diagram of control module in the embodiment of the present invention；
Fig. 8 is the schematic diagram of the embodiment of the present invention；
Fig. 9 is the flow chart of the centering method of steel rail flaw detection device disclosed by the invention；
Figure 10 is the flow chart in the embodiment of the present invention according to determination deviation；
Figure 11 is the schematic diagram of one embodiment of the invention；
Figure 12 visits wheel automatic centering system control block diagram for the ultrasonic wave of the embodiment of the present invention；
Figure 13 is the schematic diagram of an embodiment of the present invention；
Figure 14 is the schematic diagram of an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.The position deviation that ultrasonic wave is visited between wheel and rail center line is measured, and is ultrasound
One very important content of ripple rail examination automatic centering.Accurately, rapidly measurement ultrasonic wave visit wheel with rail center line it
Between position deviation, and disturbed as little as possible by external environment, be the technical problems to be solved by the invention.
A kind of center support system of steel rail flaw detection device disclosed by the invention, wherein, steel rail flaw detection device is visited including ultrasonic wave
Wheel, as shown in fig. 6, being the schematic diagram of system disclosed by the invention, the system includes：
Sensor 601, the outline data for gathering rail；
Control module 602, for determining that the ultrasonic wave visits the deviation of wheel and rail center line according to the wide data of rail；
Servo-driver 603, visits wheel for the ultrasonic wave according to deviation adjusting and realizes centering.
Wherein, as shown in fig. 7, control module 602 includes：
Position determination unit 6021, for determining that ultrasonic wave visits position data of the wheel on rail according to the wide data of rail；
Distance determining unit 6022, for determining the distance between sensor and rail data according to position data.
Deviation data determining unit 6023, for being visited according to range data and pre-stored ultrasonic wave between wheel and sensor
Range data determine ultrasonic wave visit wheel and rail center line deviation.
In addition, servo-driver includes：
Controlled quentity controlled variable determining module, the deviation for visiting wheel and rail center line according to the ultrasonic wave determines controlled quentity controlled variable.
As shown in figure 8, the center support system of the present invention also includes：
Servomotor 605, centering is realized for adjusting the ultrasonic wave spy wheel according to controlled quentity controlled variable.
Meanwhile, the invention also discloses a kind of centering method of steel rail flaw detection device, as shown in figure 9, this method includes：
Step S901, gathers the wide data of rail of rail；
Step S902, determines that the ultrasonic wave visits the deviation of wheel and rail center line according to the wide data of rail；
Step S903, ultrasonic wave visits wheel and realizes centering according to deviation adjusting.
Wherein, as shown in Figure 10, determine that the deviation of ultrasonic wave spy wheel and rail center line includes according to the wide data of rail：
Step S9021, determines that ultrasonic wave visits position data of the wheel on rail according to the wide data of rail；
Step S9022, the distance between sensor and rail data are determined according to position data；
Step S9023, visits the distance between wheel and sensor data according to range data and pre-stored ultrasonic wave and determines
Ultrasonic wave visits the deviation of wheel and rail center line.
As shown in figure 11, it is the schematic diagram of one embodiment of the invention, the ultrasonic wave of the present embodiment visits wheel automatic centering system
Structure is made up of distance measuring sensor 1101, control computer 1102, servo-driver 1103, servomotor 1104.Ranging is sensed
Device measurement rail 1105 rail is wide, obtains current ultrasonic and visits 1106 positions of wheel, the data of measurement are sent into control computer
In 1102, according to distance measuring sensor 1101 be transmitted through come rail range data, control computer calculated according to the software woven
The distance between current sensor 1101 and rail 1105, during due to installing, distance measuring sensor 1101 and ultrasonic wave visit wheel 1106
Between position be relatively-stationary, therefore ultrasonic wave can be calculated according to the distance between sensor 1101 and rail 1105
The deviation of wheel 1106 and the center line of rail 1105 is visited, servo-driver 1103 obtains phase according to deviation with corresponding control algolithm
The controlled quentity controlled variable answered, and servomotor 1104 is driven, servomotor drives ultrasonic wave to visit wheel should along the direction mobile phase for reducing deviation
Distance so that ultrasonic wave visit wheel 1106 and the center line of rail 1105 coincide, realize automatic centering.
Due to rail-defect detector car, detection speed is very fast in detection process, thus it requires the system has reaction quickly
Speed, when the present invention can guarantee that rail-defect detector car high-speed cruising, the lateral attitude deviation control of ultrasonic probe is can be normal
In the range of flaw detection.
The ultrasonic wave of the embodiment of the present invention visits wheel automatic centering system control block diagram as shown in figure 12, and control computer is received
The deviation data of sensor collection and default control are expected, controlled quentity controlled variable is generated according to pre-stored control algolithm, control centering
The left and right spy wheel carrier of system, realizes automatic centering.
Distance measuring sensor in the embodiment of the present invention uses two-dimensional laser sensor, and laser sensor is measured on the inside of rail,
Following rail laser automatic centering system is obtained, as shown in figure 13：Two-dimensional laser sensor can be measured on the inside of rail head of rail
Rail exterior feature information, control computer is calculated according to the wide information of obtained rail, is calculated ultrasonic wave and is visited wheel and rail center line
Deviation, obtains corresponding controlled quentity controlled variable, controlled quentity controlled variable is transmitted to servo drive according to deviation control computer with corresponding control algolithm
Dynamic device, servo-driver drives ultrasonic wave to visit wheel along reduction deviation according to obtained drive volume driving servomotor, servomotor
Direction move corresponding distance so that ultrasonic wave visits wheel and rail center line coincides, realize automatic centering.
In addition, when it is implemented, laser sensor also both can obtain following rail laser automatic from the measurement of rail outside
Center support system schematic diagram, as shown in figure 14.
In the embodiment of the present invention, the centering under rail-defect detector car high-speed cruising is realized using servo-drive system, overcomes and adopts
With the low shortcoming of dolly inspection speed is hung under large-scale rail-defect detector car, the rail examination under high-speed cruising is realized, work is improved
Make efficiency；And rail-defect detector car can be incorporated into service chart together with existing lorry under high-speed cruising, it is not necessary in the skylight phase
Carry out rail examination, it is to avoid take the time of skylight phase, save the substantial amounts of rail examination time, substantially increase railway fortune
Capable business efficiency.
Meanwhile, the present invention adapts to the rail under a variety of rail types, a variety of behaviours in service, is not influenceed by factors such as weather,
Rainy day, snowy day can be normally carried out carrying out flaw detection, and practicality is good.The present invention realizes that rail examination is automatically right using servo-drive system
In, the recall rate of rail defects and failures is substantially increased, is reduced due to the hurt rate of false alarm that rail die misalignment occurs, can be accurate in time
Hurt present in in-service rail really is found, to ensureing that the safety of railway operation is played a significant role.Overcome use
The mode of mechanical expanding wheel realizes the shortcoming of centering, eliminates the pretightning force between traveling dolly steel wheel and rail, realizes at a high speed
In the case of rail examination.
Servo-drive system in the present invention can guarantee that rail-defect detector car, in high-speed cruising, overcomes rail-defect detector car on the line
The influence for the flaw detection failure that yaw, yaw motion are brought when flaw detection is advanced, it is ensured that the lateral attitude deviation control of ultrasonic probe
In the range of it can normally detect a flaw, ensure that rail examination is accurately and effectively carried out.The present invention applies to large-scale rail-defect detector car
Realize on seamed high-speed steel rail, be equally applicable to during Non-Destructive Testing higher field in.
Apply specific embodiment in the present invention to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help to understand the method and its core concept of the present invention；Simultaneously for those of ordinary skill in the art,
According to the thought of the present invention, it will change in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (3)
1. a kind of center support system of steel rail flaw detection device, the steel rail flaw detection device includes ultrasonic wave and visits wheel, it is characterised in that institute
The system stated includes：
Two-dimensional laser sensor, the outline data for gathering rail；
Control module, for determining that the ultrasonic wave visits the deviation of wheel and rail center line according to the outline data of the rail；
Servo-driver, visits wheel for the ultrasonic wave according to the deviation adjusting and realizes centering；
Wherein, the control module includes：
Position determination unit, for determining that ultrasonic wave visits position data of the wheel on rail according to the outline data of the rail；
Distance determining unit, for determining the distance between sensor and rail data according to described position data；
Deviation data determining unit, for according to the range data and pre-stored ultrasonic wave visit between wheel and sensor away from
Determine that ultrasonic wave visits the deviation of wheel and rail center line from data；
Wherein, the servo-driver includes controlled quentity controlled variable determining module, for visiting wheel and rail center line according to the ultrasonic wave
Deviation determine controlled quentity controlled variable.
2. the center support system of steel rail flaw detection device as claimed in claim 1, it is characterised in that described system also includes：
Servomotor, centering is realized for adjusting the ultrasonic wave spy wheel according to the controlled quentity controlled variable.
3. a kind of centering method of steel rail flaw detection device, the steel rail flaw detection device includes ultrasonic wave and visits wheel, it is characterised in that institute
The method stated includes：
The outline data of rail is gathered by two-dimensional laser sensor；
Determine that the ultrasonic wave visits the deviation of wheel and rail center line according to the outline data of the rail；
Ultrasonic wave visits wheel and realizes centering according to the deviation adjusting；
The described outline data according to rail determines that ultrasonic wave is visited wheel and the deviation of rail center line and included：
Determine that ultrasonic wave visits position data of the wheel on rail according to the outline data of the rail；
The distance between sensor and rail data are determined according to position data；And
The distance between wheel and sensor data are visited according to the range data and pre-stored ultrasonic wave and determine that ultrasonic wave visits wheel
And the deviation of rail center line；
The ultrasonic wave according to the deviation adjusting visits wheel and realizes centering, in addition to：Wheel and steel are visited according to the ultrasonic wave
The deviation of rail center line determines controlled quentity controlled variable, and adjusting the ultrasonic wave spy wheel according to the controlled quentity controlled variable realizes centering.
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| CN201410608424.6A CN104359983B (en) | 2014-11-03 | 2014-11-03 | The center support system and method for a kind of steel rail flaw detection device |
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| CN104359983B true CN104359983B (en) | 2017-11-03 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105445379B (en) * | 2015-12-30 | 2018-06-29 | 中国船舶科学研究中心上海分部 | Large-scale double track inspection car centering body |
| CN105818837B (en) * | 2016-05-10 | 2019-01-15 | 中国铁道科学研究院集团有限公司 | A kind of rail-defect detector car using automatic centering mode |
| CN106274978A (en) * | 2016-08-22 | 2017-01-04 | 合肥德泰科通测控技术有限公司 | Rail-defect detector car intellectuality center support system |
| CN107289861B (en) * | 2017-07-31 | 2023-07-21 | 上海市东方海事工程技术有限公司 | Automatic centering system and centering detection method for rail flaw detection |
| CN107727741A (en) * | 2017-10-24 | 2018-02-23 | 中国铁路总公司 | Railway track flaw detection wheel probe and railway track method of detection |
| CN108819963B (en) * | 2018-04-20 | 2019-12-10 | 株洲时代电子技术有限公司 | Automatic centering control device with abrasion compensation |
| CN108415243B (en) * | 2018-04-20 | 2021-06-18 | 株洲时代电子技术有限公司 | Automatic centering control method with abrasion compensation |
| CN109100422B (en) * | 2018-08-27 | 2024-02-13 | 上海市东方海事工程技术有限公司 | Rail flaw detection and video monitoring integrated system based on asynchronous encoder |
| CN112406949A (en) * | 2020-02-08 | 2021-02-26 | 姜易斋 | Wheeled probe ultrasonic wave automatic centering system |
| CN113002574B (en) * | 2021-03-22 | 2022-08-19 | 神华新朔铁路有限责任公司 | Centering system, centering method and controller for steel rail flaw detection vehicle |
| CN114295721A (en) * | 2021-11-16 | 2022-04-08 | 国能朔黄铁路发展有限责任公司 | Probe wheel pair centering structure, rail flaw detection vehicle and probe wheel pair centering method |
| CN116039696B (en) * | 2022-11-22 | 2024-01-30 | 北京新科启源科技有限公司 | Steel rail ultrasonic wheel type detection wheel assembly with automatic centering function and flaw detection vehicle |
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