CN207106522U - A kind of detecting system for detecting Train wheel tread damage - Google Patents
A kind of detecting system for detecting Train wheel tread damage Download PDFInfo
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- CN207106522U CN207106522U CN201720655160.9U CN201720655160U CN207106522U CN 207106522 U CN207106522 U CN 207106522U CN 201720655160 U CN201720655160 U CN 201720655160U CN 207106522 U CN207106522 U CN 207106522U
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- detecting
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- pressure rail
- rail temperature
- track
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Abstract
The utility model provides a kind of detecting system for detecting Train wheel tread damage, and described detecting system includes sensor-based system and the data acquisition and analysis system being connected with sensor-based system；Described sensor-based system includes at least two set detecting devices and the detector being correspondingly arranged with detecting system, several pressure rail temperature compound sensors are respectively equipped with per set detecting device, several described pressure rail temperature compound sensors are divided into two groups, are arranged in correspondence with the inner side of two track for a trains；The signal wire of two groups of pressure rail temperature compound sensors is connected after transition line concentrating case collects with data acquisition and analysis system.Detection results are accurate simultaneously, and cost is low, and technique effect is good, then installs simple and practical.
Description
Technical field
It the utility model is related to the technical field of detection means, more particularly to a kind of inspection for detecting Train wheel tread damage
Examining system.
Background technology
The detection of domestic and international topical railway wheel problems generally has two methods, is static method and dynamic method respectively.Static method is
When referring to train steady, the curve of geometrical curve and standard to flange tread is compared to detect.Dynamic method detection is to use
Vehicular and ground type detecting system.Vehicular detection is to obtain tread contour indirectly by examining the acceleration of car axletree vibration
Parameter, this is needed to hinder install sensor in every axle, and cost is high to be not necessarily to simultaneously, so not using typically.Ground type detects
It is that corresponding wheel profile detection means is installed on track circuit.Common dynamic method is as follows：
1st, track circuit break period method
The critical speed of this method more 40km/h, the wheel of tread damage produce bounce in injury region so that track
Circuit short interruptions, the break period is as the foundation for judging tread damage degree.
2nd, eddy-current method
The relation between tread wear amount and detection signal amplitude is first obtained, then by measuring detector output voltage values
To obtain tread wear amount.
3rd, contact measuring method
This method is not using wearing away typically at the top of wheel rim, its radial variations quantitative response of rail abrasion of tread relatively
Amount.
In intermediary and later stages the 1990s, some related researchs, the following two kinds method have been done by the country：
（1）With the radial displacement of relative rail at the top of plate displacement transducer detection wheel rim.Taken turns at one in Zhou Changdu
3 identical displacement transducers are prevented to prevent the influence of adjacent wheels, referring specifically to Fig. 1.
（2）The height change of relative rail at the top of wheel rim is measured with foil gauge, referring specifically to Fig. 2.
4th, ultrasonic telemetry
In mid-term the 1990s, Russia develops wheel to parameter automatization detection means, is not more than in speed
During 5km/h, by telemetering pickup group, the distance away from each figuratrix of wheel can be measured, tread is obtained after handling by analysis
Abrasion loss.
5th, shock loading method
Tread damage amount is obtained by detecting the impact load caused by tread damage.The country is obtained using " shear force method "
Load, i.e. vehicle by when, certain relation be present between the wheel rail force and shear stress suffered by rail, measure shear stress so as to obtain
Load judges flat sliding amount by measuring the size of shock loading caused by flat sliding wheel, referring specifically to Fig. 3.
In Fig. 3, P=Q+ ∑ R, wherein P are wheel weight, and Q is shearing, and R is between pressure l1=l3+h, l1 shear force sensor
Away from l3 is the length of test section, and h is rail height.
6th, photovoltaic measurement
Using illumination tread, imaging system intake is reflected or launches image slowly, and the parameter of tread is obtained after processing, so as to
To the abrasion loss of flat sliding.
In the above method, method（1）Extremely（4）With（6）, it is bigger trueness error to be present, and cost is high, and implementation is difficult.
Method（5）In, it is necessary to build an integral rail measuring table, integral rail measuring table typically uses the different rail of 6 Gents
Pillow, for installing 8 shear force sensors and 24 pressure sensors.Track jack is employed during installation to sling rail, in sleeper and
Pressure sensor is installed, the sensor of installation is when demarcation, it is necessary to which the rail locomotive for employing standard enters between rail foot
Rower is determined, and cost takes huge.When circuit needs cleaning to safeguard, overall track measuring table can not move, and influence work
Business sorting operation.
The content of the invention
The purpose of this utility model is to provide a kind of detecting system for detecting Train wheel tread damage, by being filled to detection
Put effective setting in rational position, it is intended to significantly improve detection precision and install convenient.
To achieve these goals, the technical solution of the utility model is：A kind of inspection for detecting Train wheel tread damage
Examining system, described detecting system are installed on track for a train, it is characterised in that：Described detecting system include sensor-based system and
The data acquisition and analysis system being connected with sensor-based system；
Described sensor-based system includes at least two set detecting devices and the detector being correspondingly arranged with detecting system, often
Set detecting device is respectively equipped with several pressure rail temperature compound sensors, and several described pressure rail temperature compound sensors are divided into
Two groups, it is arranged in correspondence with the inner side of two track for a trains；The signal wire of two groups of pressure rail temperature compound sensors is in transition line concentration
Case is connected after collecting with data acquisition and analysis system.
Preferably, sensor-based system includes two set detecting devices, and it is multiple that 10-36 pressure rail temperature is respectively equipped with per set detecting device
Sensor is closed, pressure rail temperature compound sensor is arranged on the natural axis on the inside of track for a train.
Further, track for a train is provided with entablature and sill, the two side ends of sill be respectively equipped with the first grab and
Second grab, fixed between the first grab and the second grab by the first bolt, the first described bolt is arranged at sill
Bottom, the side of each pressure rail temperature compound sensor are arranged with a protection line box, and described protection line box passes through the second spiral shell
Bolt is fixed on the second grab.
Relative to prior art, the technical solution of the utility model is in addition to many except the improvement of overall technical architecture
Improvement in terms of details, specifically, have the advantages that：
1. installation is simple and practical
Huge integral rail measuring table need not be built, it is only necessary to be arranged on 24 sensors on steel rail web i.e.
Can.Installation integral rail measuring table needs some months, it is necessary to employ tens to hundred people's manpowers and heavy mechanical equipment, time
Or even it is longer, time cost and financial cost are at a relatively high.5 to 8 people of installation of the present utility model can complete entirely to pacify for two weeks
Dress.Substantial amounts of manpower and materials and valuable time are saved.
2. automatic Calibration
The demarcation of this product with the locomotive of standard weights without being demarcated.Sensor has automatic Calibration function, and
And it need to only demarcate once.Staking-out work was automatically performed in 24 hours.It is user-friendly
3. detection is accurate
Exceed《Transport regulation》The ratio of limit TPDS alarm tread damages and grade TPDS tread damages alarm sum：
One-level alarm encashment ratio：≥80%；
Secondary alarm encashment ratio：≥60%；
Three-level alarm encashment ratio：≥50%；
4. cost is low, technique effect is good
It is simple due to installing, without structure monoblock type measuring channels bed platform, demarcated without locomotive is employed, therefore cost
It is very low.It can be used in view of each rolling stock section of each Railway Bureau, market is quite huge, and this product is in structure design
When from user's angle, the projected life of sensor is equal to rail life, maintenance-free, when needing sorting operation
Only collecting device need to be employed to several personal cans pull down and move, leave behind sensor on rail.Both cost is greatly reduced,
Also solves the technical barrier for not influenceing sorting operation simultaneously.
Brief description of the drawings
Fig. 1 is mounting arrangement schematic diagram of the present utility model.
Fig. 2 is A-A in Fig. 1 to sectional view.
Fig. 3 is pressure rail temperature compound sensor described in the utility model and transition cable concentrator, the connection section of protection line box
Schematic diagram.
Fig. 4 is the structural representation that pressure rail temperature compound sensor described in the utility model is arranged on track natural axis
Figure.
Reference：
1 first grab, 2 second grabs, 3 pressure rail temperature compound sensors, 4 first bolts, 5 second bolts, 6 protective wires
Box, 7 transition cable concentrators, 8 data acquisition and analysis systems, 9 sleepers, 10 rail, 11 natural axis, 12 detectors.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals.For
For one of ordinary skill in the art, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
The utility model provides a kind of detecting system for detecting Train wheel tread damage, with reference in figure 4, described inspection
Examining system is installed on track for a train, it is characterised in that：Described detecting system includes sensor-based system and is connected with sensor-based system
Data acquisition and analysis system；Described sensor-based system includes at least two set detecting devices and the car being correspondingly arranged with detecting system
Inductor, several pressure rail temperature compound sensors are respectively equipped with per set detecting device, and several described pressure rail temperature are answered
Close sensor and be divided into two groups, be arranged in correspondence with the inner side of two track for a trains；The signal of two groups of pressure rail temperature compound sensors
Line is connected after transition line concentrating case collects with data acquisition and analysis system.
Detecting system of the present utility model should not overall measure track platform, it is only necessary to pacifies temperature stress compound sensor
Mounted in steel rail web, by data-signal cable connection to corresponding processor.Automatic Calibration, which refers to, need not borrow standard weight
The locomotive of amount is demarcated, and sensor of the present utility model, which has, automatic carries out calibrating function.
Do not influence work sorting operation to refer to when circuit needs to safeguard progress sorting operation, it is only necessary to the electricity of sensor will be connected
Cable and collecting device are taken away, wait cleaning to be over and are reinstalled, during automatic Calibration can come into operation immediately.
Detection accurately refers to generally weigh using encashment ratio in the industry, and encashment ratio reaches requirement in the industry.
Furthermore, each pressure rail temperature compound sensor is arranged on the center between sleeper and sleeper, because
In center, stress is maximum, and the electric signal that sensor collects is most strong, between typical pressure rail temperature compound sensor away from
From being 600mm.
In one embodiment, sensor-based system includes two set detecting devices, and 12 pressure are respectively equipped with per set detecting device
Rail temperature compound sensor, pressure rail temperature compound sensor are arranged on the natural axis on the inside of track for a train.Data collection and analysis system
System is mainly made up of 24 tunnel high-speed data acquisition equipment and analysis software.Detector detected by after vehicle, each rail
12 sensors of bar detect each by the whole circumference of wheel pair by pressure respectively, are stepped on by data acquisition and analysis system analysis
The stripping chip off-falling in face, scratch equivalent size；The load capacity of each wheel pair is analyzed simultaneously, and calculates two wheels pair of every axle
Bearing capacity sum and bearing capacity are only poor, analyze Super leaning load situation.In addition, need not be by standard weights locomotive, sensor can be with
Automatic Calibration rail pressure.
Each detecting system is made up of 12 stress temperature complex sensors, and sensor cable, which is laid in, is installed on the web of the rail
Transition wire coupling box is connected in glass reinforced plastic pipe, after concentration；Sensor signal lines pass through 2 bands after transition line concentrating case collects
There is the cable connection of sheath to the data processing centre of trackside.
Sensor is arranged on the web of the rail between sleeper, and 12 sensors are arranged in the way of Fig. 4, can completely be surveyed
Measure the one week pressure each put of train wheel.Fig. 4 arrangement already has accounted for train wheel when being pressed on sleeper, sensing
Device does not have the blind area of signal.
There is the hole of required precision by boring one on the web of the rail, sensor is arranged on the web of the rail.Sensor and the hole pass through
Interference fit installation.
After sensor is by automatic Calibration, when wheel one crosses the sensor of Fig. 4 arrangements, it is possible to obtain the impact of tread
Load and static load, by trying to achieve the ratio of shock loading and static load, so as to judge the scratch amount of tread.
In another embodiment, track for a train is provided with entablature and sill, from the side in I-shaped, sill
Two side ends are respectively equipped with the first grab and the second grab, are fixed between the first grab and the second grab by the first bolt, described
The first bolt be arranged at the bottom of sill, the side of each pressure rail temperature compound sensor is arranged with a protection line box,
Described protection line box is fixed on the second grab by the second bolt.
Specifically, the first grab bottom is provided with installation portion, and top is provided with clamping part, and clamping part is provided with the card of hook solid
Button, it can be used for fixing sill one end of track for a train；Second grab bottom is provided with the installation portion corresponding with the first grab,
First, second installation portion is equipped with mounting hole, is fixedly connected with both by being arranged at the first bolt below sill, second
The top of grab is provided with a support post, and the top of support post is provided with mounting platform, and described protection line box is installed on installation
On platform.
In one embodiment, detection means is connected with detector by signal wire, two track for a train bottom pavings
Provided with sleeper, described detector is arranged between two adjacent sleepers.Wherein, optimum position is provided in two pillows
Position among wooden, track for a train zero stress natural axis are provided with several mounting holes, and the quantity and pressure rail temperature of mounting hole are multiple
The quantity for closing sensor is corresponded, and pressure rail temperature compound sensor is installed on natural axis by way of interference fit, is passed
Sensor can detect the power of vertically and horizontally both direction, while can detect temperature of overstepping the limit., can be in the hope of vertical by conversion
The size of power, layout of the wheel Jing Guo Fig. 4 modes can measure impulsive force of each point of wheel one week to rail, and by data
Transmit to data processing centre.During installation, comprise the following steps：A, selecting needs the track for a train section of installation detecting system,
At least two groups of mounting holes are drilled with the steel rail web of track for a train successively；One pressure rail temperature is set in each mounting hole b,
Compound sensor, it is attached between each pressure rail temperature compound sensor and steel rail web by connecting elements, then shape
Into at least two groups of detection means being independently arranged, spacing is provided between adjacent detection means；C, the pressure per set detecting device
It is connected between rail temperature compound sensor by signal wire, signal wire is connected to transition wire coupling box after concentrating and collected, eventually through
Cable connection is to data acquisition and analysis system.
In one is installed embodiment, two groups of mounting holes are set, described mounting hole is arranged at the zero stress of steel rail web
On natural axis, rail shares two, is equipped with sleeper between two one steel rails successively, is spaced 4 sleepers between two groups of mounting holes, and two
The quantity of group mounting hole is identical, and the quantity of each group of mounting hole is respectively 12, and a each group of mounting hole is two, is symmetrically arranged
It is listed on the zero stress natural axis of steel rail web, each mounting hole may be contained within the position between two sleepers.
Specifically, plus tolerance is used, is incited somebody to action with shaft position, the hole of 24 negative common differences of brill, sensor in the web of the rail of rail
24 sensors are installed in hole, obtain temperature stress data.The data of sensor pass through signal shielding cable and high speed acquisition
Equipment connects.24 sensors are spaced 4 sleepers between being divided into two groups, two groups of left and right, and every group of sensor is separately mounted to rail
Centre position between pillow and sleeper.Such method for arranging is most economical, and is feasible.Sensor installs
Afterwards, after the power for first passing around TEMPERATURE FORCE automatic Calibration vertical direction, when wheel rolls across one week, sensor can detect that wheel is stepped on
In face of power caused by rail.After obtaining shock loading and dead load, it can be determined that go out the scratch size of wheel tread, while backstage
Equipment can set alarm level, and warning message is passed through on short message sending to staff's mobile phone.
In a specific embodiment, adopted in the web of the rail of rail with shaft position, the hole of 48 negative common differences of brill, sensor
With plus tolerance, 48 sensors are installed in hole, obtain temperature stress data.The data of sensor pass through signal shielding cable
Connected with high speed acquisition equipment.48 sensors are continuously arranged on the centre position between sleeper and sleeper.Such arrangement side
Method, which improves, judges abrasive encashment ratio, but cost is high, and this method for arranging is used when requiring and its be strict.Sensing
After device installs, after the power for first passing around TEMPERATURE FORCE automatic Calibration vertical direction, when wheel rolls across one week, sensor can be examined
Road wheel tread is surveyed to power caused by rail.After obtaining shock loading and dead load, it can be determined that the scratch for going out wheel tread is big
It is small, while background devices can set alarm level, and warning message is passed through on short message sending to staff's mobile phone.
Specific embodiment of the utility model is described in detail above, but it is intended only as example, and this practicality is new
Type is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model is carried out
Equivalent modifications and substitute also all among category of the present utility model.Therefore, spirit of the present utility model and model are not being departed from
Lower made impartial conversion and modification are enclosed, should all be covered in the scope of the utility model.
Claims (5)
1. a kind of detecting system for detecting Train wheel tread damage, described detecting system are installed on track for a train, it is special
Sign is：Described detecting system includes sensor-based system and the data acquisition and analysis system being connected with sensor-based system；
Described sensor-based system includes at least two set detecting devices and the detector being correspondingly arranged with detecting system, every group of inspection
Survey device and be respectively equipped with several pressure rail temperature compound sensors, several described pressure rail temperature compound sensors are divided into two
Group, it is arranged in correspondence with the inner side of two track for a trains；The signal wire of two groups of pressure rail temperature compound sensors is in transition line concentrating case
It is connected after collecting with data acquisition and analysis system.
A kind of 2. detecting system for detecting Train wheel tread damage according to claim 1, it is characterised in that：Sensing system
System includes two set detecting devices, is respectively equipped with 10-36 pressure rail temperature compound sensor per set detecting device, pressure rail temperature is compound
Sensor is arranged on the natural axis on the inside of track for a train.
A kind of 3. detecting system for detecting Train wheel tread damage according to claim 1 or 2, it is characterised in that：Fire
Track road is provided with entablature and sill, and the two side ends of sill are respectively equipped with the first grab and the second grab, the first grab and
Fixed between second grab by the first bolt, the first described bolt is arranged at the bottom of sill, and each pressure rail temperature is multiple
The side for closing sensor is arranged with a protection line box, and described protection line box is fixed on the second grab by the second bolt.
A kind of 4. detecting system for detecting Train wheel tread damage according to claim 1, it is characterised in that：Detection dress
Put and be connected with detector by signal wire, two track for a train bottoms are equipped with sleeper, and described detector is set
Between two adjacent sleepers.
A kind of 5. detecting system for detecting Train wheel tread damage according to claim 1 or 2, it is characterised in that：Fire
Track road zero stress natural axis is provided with several mounting holes, the quantity of mounting hole and the quantity one of pressure rail temperature compound sensor
One correspondence, pressure rail temperature compound sensor are installed on natural axis by way of interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655160.9U CN207106522U (en) | 2017-06-07 | 2017-06-07 | A kind of detecting system for detecting Train wheel tread damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655160.9U CN207106522U (en) | 2017-06-07 | 2017-06-07 | A kind of detecting system for detecting Train wheel tread damage |
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| Publication Number | Publication Date |
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| CN207106522U true CN207106522U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720655160.9U Expired - Fee Related CN207106522U (en) | 2017-06-07 | 2017-06-07 | A kind of detecting system for detecting Train wheel tread damage |
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| CN (1) | CN207106522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139969A (en) * | 2017-06-07 | 2017-09-08 | 徐晶 | A kind of detecting system and its installation method for detecting Train wheel tread damage |
-
2017
- 2017-06-07 CN CN201720655160.9U patent/CN207106522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139969A (en) * | 2017-06-07 | 2017-09-08 | 徐晶 | A kind of detecting system and its installation method for detecting Train wheel tread damage |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |