CN106394606A - Railway vehicle wheel out-of-round detection method and device - Google Patents
Railway vehicle wheel out-of-round detection method and device Download PDFInfo
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- CN106394606A CN106394606A CN201610987314.4A CN201610987314A CN106394606A CN 106394606 A CN106394606 A CN 106394606A CN 201610987314 A CN201610987314 A CN 201610987314A CN 106394606 A CN106394606 A CN 106394606A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/12—Measuring or surveying wheel-rims
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Abstract
The invention relates to a railway vehicle wheel out-of-round detection method and device, and belongs to the technical field of train security monitoring and control. The device comprises detection station trackside equipment and detection station indoor equipment. The detection station trackside equipment comprises acceleration sensors, load sensors, a radio-frequency vehicle number recognition device and a rail side signal processing box. The detection station indoor equipment is connected with the rail side signal processing box and the radio-frequency vehicle number recognition device. The acceleration sensors and the load sensors are connected with the rail side signal processing box. The detection method comprises the steps that the acceleration sensors are applied to measuring and obtaining a vibration curve; then the load sensors are manually calibrated, a transfer function of wheel-rail vertical force within the effective range of acceleration signals and the load sensors is built, and the transfer function is used for reconstructing a curve of the wheel-rail vertical acting force of all positions of a rail and the time; and finally, a worker judges whether a wheel is out of round or not, and therefore the failure wheel is forecast, checked and maintained. Full-perimeter seamless measurement is achieved, and high precision is achieved.
Description
Technical field
The invention belongs to train safe monitoring technology field and in particular to a kind of railway car wheel lose circle detection method and
Detection means.
Background technology
Wheel is the vitals in train driving, with the increase of bullet train working line, especially EMUs line
Being continuously increased of road, train speed also improving constantly, wheel is susceptible to peel off in circumferencial direction, scratch, flat wheel, polygon
Deng mistake circle phenomenon.Wheel loses circle can increase wheel rail force, and dither easily causes to train running part to damage, when serious simultaneously
Train can be caused to derail.Therefore, the effective monitoring losing circle for wheel has become as the important leverage of safe train operation.
The domestic at present detection losing circle degree for train wheel mainly adopts strain-type detection means, and advantage is can be straight
Connect and wheel rail force is measured, result is more accurate, reliable.But, equally there is also shortcoming, specially：Need to remove original
Sub-rail foundation, dismounting 22 sleepers of refitting, and substitute fastener using two-dimentional plate type sensor, great in constructing amount；Track ginseng simultaneously
Number requirement is very high, needs variable interval maintenance maintenance, and maintenance maintenance is very difficult.
Content of the invention
The present invention is directed to problems of the prior art, proposes a kind of railway car wheel and loses circle detection method and detection
Device.
It is divided into acquisition station trackside equipment and acquisition station indoor equipment；
Acquisition station trackside equipment includes acceleration transducer, load transducer, radio frequency number identification device and rail side signal
Treatment box；
Acquisition station indoor equipment is located at the homonymy of rail side signal processing case, and is connected by Ethernet；
Acceleration transducer has 12, is respectively and fixedly installed on two rail, and every rail respectively installs 6, and
It is symmetrically installed centered on the signal processing case of rail side；Acceleration transducer passes through cable connection to rail side signal processing case；
Load transducer has 8, and each two is one group, is fixedly mounted on two rail foot with rail meter respectively；Its
In two groups of load transducers be respectively placed at each 6m in left and right away from detection zone centerline；Each load transducer in another two groups with
Each acceleration transducer of detection area edge is fixed together with rail meter respectively；All of load transducer is by cable even
It is connected to rail side signal processing case；
Radio frequency number identification device is fixed on the sleeper inside rail by fixture, not higher than rail plane；By cable
It is connected to acquisition station indoor equipment.
A kind of railway car wheel loses circle detection method, comprises the following steps that：
Step one, when train passes through, acceleration transducer collects the close vibration signal of train, and acquisition station trackside sets
Standby and acquisition station indoor equipment is started shooting by vibration signal and is entered working condition；
First, acceleration transducer gathers the information of train wheel vibration, and is converted into acceleration signal, through rail side signal
Treatment box is transferred to detection station host；
Then, when wheel occurs, load transducer measured dynamic load during car, and determined speed and the position of wheel
Put, be transferred to detection station host through rail side signal processing case.
Finally, radio frequency number identification device automatic identification is respectively by the vehicle vehicle number information of train, and by the car recognizing
Number information transfer, to Train number recognition main frame, is transferred to detection station host after being changed into reference format；
Step 2, by the counterweight car of different loads friction speed, manual calibration is carried out to 8 load transducers；
Specifically calibration process is：The train of different loads friction speed, through out-of-date, is set up residing for each load transducer
The dynamic performance model of rail portion, and each dynamic model is included deflection of rail degree and load pass at various speeds
It is in formula, thus calibrating to load transducer.
Step 3, for the load transducer after each calibration, detect that wheel track in this load transducer effective range hangs down
Xiang Li, and using vertical wheel rail force, acceleration transducer is calibrated, set up the biography between acceleration signal and vertical wheel rail force
Delivery function；
Step 4, when train is through out-of-date, 12 acceleration transducers gather acceleration signal respectively, and utilize transmission function
The vertical wheel rail force of reconstruct each position of track and the curve linear relationship of time；
Step 5, the vertical wheel rail force according to reconstruct and the curve linear relationship of time, judge the vertical wheel rail force of each train
Whether amplitude exceedes the safety value of wheel rail force.If exceeding, judge that wheel loses circle fault；If not less than judgement wheel is normal.
Step 6, detection station host are transferred to central server, work by the data result that railway internal network will determine that
Carry out real time inspection as personnel, thus fault wheel is carried out forecast, examination and maintenance.
It is an advantage of the current invention that：
(1) a kind of railway car wheel loses circle detection method, gathers acceleration when train passes through by acceleration transducer
Degree signal, and processed, analyzed and changed, it is to avoid the short shortcoming of strain-type wheel track force measuring method effective range,
Achieve the seamless measurement of all-round length, and reach very high precision.
(2) a kind of railway car wheel loses circle detection method, can overcome that existing system effective range is short, and scene is applied
The shortcomings of work amount is greatly and maintenance maintenance is difficult.
(3) a kind of railway car wheel loses loop truss device, and acceleration transducer and load transducer array adopt clamp rail
Formula fixed form, need not change orbital environment so that installing simple and easy to maintenance quick.
Brief description
Fig. 1 is the structured flowchart that a kind of railway car wheel of the present invention loses loop truss device；
Fig. 2 is the signal transmission schematic diagram that a kind of railway car wheel of the present invention loses loop truss device；
Fig. 3 is the flow chart that a kind of railway car wheel of the present invention loses circle detection method；
Fig. 4 is that the vertical wheel rail force that the present invention reconstructs in wheel is schemed over time with actual vertical wheel rail force.
In figure：101- acceleration transducer；102- load transducer；103- rail side signal processing case；104- acquisition station room
Interior equipment；105- sleeper；106- rail；107- radio frequency number identification device；
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of railway car wheel of the present invention loses loop truss device, and as depicted in figs. 1 and 2, described device includes acquisition station
Trackside equipment and acquisition station indoor equipment 104；Detection type of vehicle includes lorry, passenger vehicle, EMUs.
Acquisition station trackside equipment includes：101,1 radio frequency license number of 102,12 acceleration transducers of 8 load transducers is known
Other device 107 and 1 rail side signal processing case 103；
12 described acceleration transducers 101, fixedly mount the two of in-orbit side signal processing case 103 front respectively successively
On bar rail 106, every rail 106 respectively installs 6, and is symmetrically installed centered on rail side signal processing case 103, often
Individual acceleration transducer 101 is fixed on the I-beam of the corresponding rail of centrage 106 between two sleepers 105 by rail meter
On；And plus protect shell to be isolated with the external world, to protect acceleration transducer 101.All acceleration transducers 101 are used for adopting
Collection acceleration signal on rail 106 for the wheel, and by cable transmission to rail side signal processing case 103；Rail side signal processing
Case 103 is located on the centrage of detection zone；
8 described load transducers 102, each two is one group, is respectively and fixedly installed on two rail 106, with card
Rail device is fixed on rail 106 bottom, specifically in the plane outside rail 106 I-beam；For measuring dynamic load during car
Lotus；Wherein two groups load transducers 102 are respectively placed at each 6m in left and right away from detection zone centerline, for detecting going out of wheel
Existing；The speed of subsidiary wheel and positional information simultaneously；Each load transducer 102 in another two groups and detection area edge
Each acceleration transducer 101 is fixed together with rail meter respectively.After wheel occurs, load transducer 102 is monitored and is carried
To calibrate transmission function for load information, by cable transmission to rail side signal processing case 103.
3 meters from rail about of rail side signal processing case 103, positioned at the side of rail 106, be inside provided with data acquisition module,
Data processing module, the network equipment, hardware circuit, A/D modular converter, power module and lightning-protection module；Hardware circuit includes filtering
Wave circuit, amplifying circuit and Dolby circuit；Rail side signal processing case 103 carries out A/D conversion to the signal of collection, amplifies and filters
Ripple, and be transferred in acquisition station indoor equipment 104 by Ethernet.
Radio frequency number identification device 107 is fixed on detection zone one lateral edges by fixture, and in rail 106 inner side two sleepers
Between 105, not higher than rail plane；Radio frequency number identification device 107 passes through cable connection in acquisition station indoor equipment 104.
Acquisition station indoor equipment 104 includes：Detect station host, uninterrupted power source UPS, electric power source distribution device PDU, network is handed over
Change planes and Train number recognition main frame.
Acquisition station indoor equipment 104 is located at the homonymy of rail side signal processing case 103；Receive rail side signal processing case simultaneously
The acceleration signal of 103 transmission, speed data and load data carry out comprehensive analysis, and the transmission function according to calibration, reconstruct
Vertical wheel rail force function in time, realizes the continual measurement to vertical wheel rail force.
Radio frequency number identification device 107 is joined directly together with the Train number recognition main frame of acquisition station indoor equipment 104, will respectively pass through
The vehicle vehicle number information of train is transferred to Train number recognition main frame and is identified, and is transferred to detection station host after being changed into reference format
In.
A kind of railway car wheel of the present invention loses circle detection method, based on said apparatus, right with acceleration transducer 101
Wheel track acceleration measures, and obtains the oscillating curve that train passes through acceleration transducer 101 array, and according to load transducer
The load information calibration transmission function of 102 offers, acceleration signal is reconstructed into vertical wheel rail force, according to vertical wheel rail force at any time
Between curve judge whether wheel loses circle, then rolling stock section and MTU depot are uploaded to specific message form by high-speed Internet
Data center；
Specifically include following step, as shown in Figure 3：
Step one, when train passes through, acceleration transducer collects the close vibration signal of train, and acquisition station trackside sets
Standby and acquisition station indoor equipment is started shooting by vibration signal and is entered working condition；
First, acceleration transducer 101 gathers the information of train wheel vibration, and is converted into acceleration signal, through rail side
Signal processing case 103 is transferred to acquisition station indoor equipment 104；When the acceleration signal of acceleration transducer 101 exceedes threshold values,
System senses that train is close, wakes up acquisition station indoor equipment 104 and prepares to pick up.
Then, when wheel occurs, the receipt signal of load transducer 102 reaches peak value, indicates the appearance of wheel, peak
Value signal is converted into dynamic load, determines speed and the position of this wheel simultaneously, is transferred to detection through rail side signal processing case 103
Stand indoor equipment 104.
Finally, radio frequency number identification device 107 automatic identification is respectively by the vehicle vehicle number information of train, and will recognize
Vehicle number information transmits to Train number recognition main frame, is transferred to acquisition station indoor equipment 104 after being changed into reference format；
Step 2, by the counterweight car of different loads friction speed, manual calibration is carried out to 8 load transducers；
Specific calibration process refers to：The train of different loads friction speed, through out-of-date, sets up each load transducer institute
The dynamic performance model of place's rail portion, and each dynamic model is included deflection of rail degree and load at various speeds
In relational expression, thus calibrating to load transducer, reduce the impact that dynamic error causes to restructuring analysis.
Step 3, for the load transducer after each calibration, detect that wheel track in this load transducer effective range hangs down
Xiang Li, and using vertical wheel rail force, acceleration transducer is calibrated, set up the biography between acceleration signal and vertical wheel rail force
Delivery function；
For the load transducer 102 after each calibration, detect that the wheel track in each load transducer 102 effective range hangs down
Xiang Li, using 4 load transducers 102 of detection area edge, to 4 acceleration transducers being fixed together with rail meter
101 are calibrated respectively, and the transmission function between acceleration signal and vertical wheel rail force set up by acquisition station indoor equipment 104, thus
Realize the detection of vertical wheel rail force outside load transducer 102 effective coverage.
Step 4, when train is through out-of-date, 12 acceleration transducers gather acceleration signal respectively, and utilize transmission function
The vertical wheel rail force of reconstruct each position of track and the curve linear relationship of time；
When train is through out-of-date, in rail side signal processing case 103 101 points of data collecting card 12 acceleration transducers of reception
The acceleration signal not collected, and A/D conversion and amplification, noise reduction and the filtering of signal are realized by hardware circuit, finally lead to
Cross Ethernet and be transferred to acquisition station indoor equipment 104, acquisition station indoor equipment 104 utilizes 12 acceleration signals the profit of train
Reconstruct the vertical active force of wheel track of each position of track and the curve of time with transmission function；Including load transducer effective range
Interior vertical wheel rail force and the curve of time, and the curve of the wheel track vertical force outside effective range and time.
As shown in figure 4, by original vertical wheel rail force signal, reconstruct vertical wheel rail force signal and acceleration vibration letter
Number comparison, fine to the vertical wheel rail force goodness of fit in load transducer effective detection region；And for load transducer
Vertical wheel rail force outside effective detection region can supplement well, illustrates that the present invention can be very good to realize losing circle to wheel
Detection.
Step 5, the vertical wheel rail force according to reconstruct and the curve linear relationship of time, judge the vertical wheel rail force of each train
Whether amplitude exceedes the safety value of wheel rail force.If exceeding, judge that wheel loses circle fault；If not less than judgement wheel is normal.
Step 6, detection station host are transferred to central server, work by the data result that railway internal network will determine that
Carry out real time inspection as personnel, thus fault wheel is carried out forecast, examination and maintenance.
Claims (9)
1. a kind of railway car wheel loses loop truss device it is characterised in that being divided into acquisition station trackside equipment and acquisition station indoor
Equipment；
Acquisition station trackside equipment includes acceleration transducer, load transducer, radio frequency number identification device and rail side signal processing
Case；
Acquisition station indoor equipment is located at the homonymy of rail side signal processing case, and is connected by Ethernet；
Acceleration transducer has 12, is respectively and fixedly installed on two rail, and every rail respectively installs 6, and with rail
It is symmetrically installed centered on the signal processing case of side；Acceleration transducer passes through cable connection to rail side signal processing case；
Load transducer has 8, and each two is one group, is fixedly mounted on two rail foot with rail meter respectively；Wherein two
Group load transducer is respectively placed at each 6m in left and right away from detection zone centerline；Each load transducer in another two groups and detection
Each acceleration transducer of area edge is fixed together with rail meter respectively；All of load transducer passes through cable connection extremely
Rail side signal processing case；
Radio frequency number identification device is fixed on the sleeper inside rail by fixture, not higher than rail plane；By cable connection
To acquisition station indoor equipment.
2. a kind of railway car wheel loses loop truss device it is characterised in that described rail side signal as claimed in claim 1
3 meters from rail about for the treatment of box, is inside provided with data acquisition module, data processing module, the network equipment, hardware circuit, A/D conversion
Module, power module and lightning-protection module.
3. a kind of railway car wheel loses loop truss device it is characterised in that described acquisition station room as claimed in claim 1
Interior equipment includes：Detection station host, uninterrupted power source UPS, electric power source distribution device PDU, the network switch and Train number recognition main frame, its
In, radio frequency number identification device is joined directly together with Train number recognition main frame.
4. a kind of railway car wheel loses loop truss device it is characterised in that described each accelerates as claimed in claim 1
Degree sensor is fixed on the I-beam of the corresponding rail of centrage between two sleepers by rail meter；And plus protection shell with
The external world is isolated, to protect acceleration transducer.
5. a kind of railway car wheel loses loop truss device it is characterised in that described acceleration passes as claimed in claim 1
Carry out data prediction in sensor and the sensing data in-orbit side signal processing case of load transducer collection, then transmit to detection
Indoor equipment of standing completes wheel and loses loop truss.
6. a kind of railway car wheel loses loop truss device it is characterised in that described Train number recognition as claimed in claim 1
Main frame gathers the vehicle number information of train, and fault wheel position is positioned, and identifies fault wheel positional information.
7. a kind of railway car wheel described in application claim 1 loses the detection method of loop truss device it is characterised in that having
Body step is as follows：
Step one, when train passes through, acceleration transducer collects the close vibration signal of train, acquisition station trackside equipment and
Acquisition station indoor equipment is started shooting by vibration signal and is entered working condition；
Step 2, by the counterweight car of different loads friction speed, manual calibration is carried out to 8 load transducers；
Step 3, for each calibration after load transducer, detect the vertical wheel rail force in this load transducer effective range,
And using vertical wheel rail force, acceleration transducer is calibrated, set up the transmission letter between acceleration signal and vertical wheel rail force
Number；
Step 4, when train is through out-of-date, 12 acceleration transducers gather acceleration signal respectively, and using transmission function reconstruct
The vertical wheel rail force of each position of track and the curve linear relationship of time；
Step 5, the vertical wheel rail force according to reconstruct and the curve linear relationship of time, judge the amplitude of the vertical wheel rail force of each train
Whether exceed the safety value of wheel rail force；If exceeding, judge that wheel loses circle fault；If not less than judgement wheel is normal；
Step 6, detection station host are transferred to central server by the data result that railway internal network will determine that, work people
Member carries out real time inspection, thus fault wheel is carried out forecast, examination and maintenance.
8. a kind of railway car wheel loses circle detection method it is characterised in that described step one has as claimed in claim 6
Body is：
First, acceleration transducer gathers the information of train wheel vibration, and is converted into acceleration signal, through rail side signal processing
Case is transferred to detection station host；
Then, when wheel occurs, load transducer measured dynamic load during car, and determined speed and the position of wheel,
It is transferred to detection station host through rail side signal processing case.
Finally, radio frequency number identification device automatic identification respectively passes through the vehicle vehicle number information of train, and the license number recognizing is believed
Breath transmits to Train number recognition main frame, is transferred to detection station host after being changed into reference format.
9. a kind of railway car wheel loses circle detection method it is characterised in that in described step 2 as claimed in claim 6
Specifically calibration process is：The train of different loads friction speed, through out-of-date, sets up rail portion residing for each load transducer
Dynamic performance model, and each dynamic model is included in deflection of rail degree and load relational expression at various speeds,
Thus calibrating to load transducer.
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| CN107364467A (en) * | 2017-07-01 | 2017-11-21 | 南京理工大学 | A kind of fault monitoring device and method based on wheel to vibration signal |
| CN107650945A (en) * | 2017-09-19 | 2018-02-02 | 华东交通大学 | A kind of recognition methods of wheel polygon and its device based on vertical wheel rail force |
| CN108562446A (en) * | 2018-04-25 | 2018-09-21 | 石家庄铁道大学 | Time and frequency domain characteristics wheel polygon detecting method and terminal device are vibrated based on axle box |
| CN108593315A (en) * | 2018-04-25 | 2018-09-28 | 石家庄铁道大学 | The wheel polygon detecting method and terminal device of frequency domain character are vibrated based on axle box |
| CN108731953A (en) * | 2018-03-27 | 2018-11-02 | 常州路航轨道交通科技有限公司 | A kind of polygon failure on-line detecting method of Railway wheelset |
| CN108944998A (en) * | 2018-07-23 | 2018-12-07 | 清华大学天津高端装备研究院 | A kind of detection of train wheel and maintenance system |
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| CN107364467A (en) * | 2017-07-01 | 2017-11-21 | 南京理工大学 | A kind of fault monitoring device and method based on wheel to vibration signal |
| CN107650945A (en) * | 2017-09-19 | 2018-02-02 | 华东交通大学 | A kind of recognition methods of wheel polygon and its device based on vertical wheel rail force |
| CN108731953A (en) * | 2018-03-27 | 2018-11-02 | 常州路航轨道交通科技有限公司 | A kind of polygon failure on-line detecting method of Railway wheelset |
| CN108562446B (en) * | 2018-04-25 | 2020-04-14 | 石家庄铁道大学 | Wheel polygon detection method based on axle box vibration time-frequency domain characteristics and terminal equipment |
| CN108562446A (en) * | 2018-04-25 | 2018-09-21 | 石家庄铁道大学 | Time and frequency domain characteristics wheel polygon detecting method and terminal device are vibrated based on axle box |
| CN108593315A (en) * | 2018-04-25 | 2018-09-28 | 石家庄铁道大学 | The wheel polygon detecting method and terminal device of frequency domain character are vibrated based on axle box |
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| CN110171442A (en) * | 2019-06-12 | 2019-08-27 | 中国神华能源股份有限公司 | Detection system, the detection method of wheel flat |
| CN110220726A (en) * | 2019-06-12 | 2019-09-10 | 中国神华能源股份有限公司 | Detection system, the detection method of wheel out of round |
| CN110411765A (en) * | 2019-08-28 | 2019-11-05 | 南阳理工学院 | Motor turning device for detecting performance |
| CN110806324A (en) * | 2019-11-11 | 2020-02-18 | 成都西交智众科技有限公司 | Wheel polygon abrasion detection method based on rail displacement and data acquisition equipment |
| CN111044288A (en) * | 2019-12-31 | 2020-04-21 | 神州高铁技术股份有限公司 | Signal acquisition method and system, storage medium, diagnosis system and detection system |
| CN111824207A (en) * | 2020-06-09 | 2020-10-27 | 华东交通大学 | Wheel out-of-roundness recognition method based on rail bottom strain |
| CN112762809A (en) * | 2020-12-31 | 2021-05-07 | 西南交通大学 | Method for detecting gap fault of seamed steel rail |
| CN113947129A (en) * | 2021-08-03 | 2022-01-18 | 西南交通大学 | Method, equipment and medium for training and using AI model for intelligently identifying wheel out-of-roundness state |
| CN113947129B (en) * | 2021-08-03 | 2022-06-14 | 西南交通大学 | Method, equipment and medium for training and using AI model for intelligently identifying wheel out-of-roundness state |
| CN115560693A (en) * | 2022-12-05 | 2023-01-03 | 浙江天铁实业股份有限公司 | Load dynamic monitoring method and system |
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