CN205958013U - Continuous welded rail steel rail temperature stress detecting system - Google Patents
Continuous welded rail steel rail temperature stress detecting system Download PDFInfo
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- CN205958013U CN205958013U CN201620314984.5U CN201620314984U CN205958013U CN 205958013 U CN205958013 U CN 205958013U CN 201620314984 U CN201620314984 U CN 201620314984U CN 205958013 U CN205958013 U CN 205958013U
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to a continuous welded rail steel rail temperature stress detecting system, the structure includes that steel rail temperature sensor, power module, ferromagnetic material answer force transducer, processing circuit, intelligent processing unit and LCD, wherein ferromagnetic material answers force transducer, processing circuit, intelligent processing unit, LCD and power module to connect gradually, and the steel rail temperature sensor is direct to be connected with intelligent processing unit, processing circuit handles the signal of sensor collection to intelligent processing unit is given in the transmission, intelligence processing unit gathers and to come from the signal that ferromagnetic material answered force transducer, temperature sensor and carry out the integrated treatment to the gentle temperature stress who is surveyed the rail of rail is actually locked in output. Adopt the utility model discloses carrying out continuous welded rail temperature stress monitoring, can using manpower sparingly, material resources, the measuring speed is fast, the high -efficient accuracy of data analysis, has very big practical value, bloated rail and disconnected rail accident that the preventable is caused by temperature stress to guideing continuous welded rail destressing.
Description
Technical field
This utility model is related to stress mornitoring field and in particular to a kind of welded rail temperature stress mornitoring system.
Background technology
With the development of railway high speedization and heavy loading, countries in the world widely used gapless track technology.Because seamless track steel rail can not freely stretch, when rail temperature changes, very big axial temperature power will be produced.Excessive TEMPERATURE FORCE can lead to rail distortion unstability or fracture, cause train derailment accident, jeopardize traffic safety.In routine servicing maintenance, need periodically gapless track to be observed with regular destressing it is ensured that the TEMPERATURE FORCE in gapless track is in safety limit it is ensured that traffic safety.
Domestic railway personnel mainly pass through collimator or infrared facility manual measurement steel rail displacement amount estimates Railroad's Temperature Stress at present, judge whether roughly to need to carry out destressing.Although the method is simple to operate, because displacement observation stake positioning is inaccurate, the factor such as displacement observation label comes off, manual measurement error can lead to measuring result error very big.Additionally, displacement observation stake in gapless track fixed interval away from essentially 400 meters, average lock rail tender feeling condition in the range of 400 meters can only be grasped by displacement observation it is impossible to locally whether there is stress concentration point in the range of grasping 400 meters.
Utility model content
The purpose of this utility model is：A kind of welded rail temperature stress mornitoring system is provided, to realize temperature stress is fast and accurately detected, destressing work in making routine servicing keep in repair has more specific aim, reduces the waste of manpower and materials, effectively prevents rail break accident and the expansion rail track accident leading to because temperature stress is excessive.
For above technical problem, technical solution adopted in the utility model is：There is provided a kind of welded rail temperature stress mornitoring system, its concrete structure includes：Supply module, steel rail temperature sensor, ferromagnetic material stress sensor, signal processing circuit, intelligent processing unit and liquid crystal display；Wherein ferromagnetic material stress sensor, signal processing circuit, intelligent processing unit, liquid crystal display and supply module are sequentially connected, and steel rail temperature sensor is directly connected with intelligent processing unit.
Described ferromagnetic material stress sensor is made up of two magnet steel groups being tied with coil, and, as input, the coil windings of inner side are as outfan for outer coil winding.
Described signal processing circuit is made up of pre-amplification circuit, current rectifying and wave filtering circuit, zeroing circuit, operational amplifier, A/D change-over circuit；Wherein pre-amplification circuit, current rectifying and wave filtering circuit, operational amplifier and A/D change-over circuit are sequentially connected, and zeroing circuit is arranged between current rectifying and wave filtering circuit and operational amplifier；Pre-amplification circuit is connected with ferromagnetic material stress sensor, and A/D change-over circuit is connected with intelligent processing unit.
The collection of described intelligent processing unit from ferromagnetic material stress sensor, the signal of temperature sensor and carries out the temperature stress of the gentle tested rail of integrated treatment final output actual lock rail.
In work, alternating current needed for ferromagnetic material stress sensor, the unidirectional current being provided by supply module converts and obtains through signal generator and power amplification circuit, and remaining equipment directly provides unidirectional current by supply module；Signal processing circuit is attached with ferromagnetic material stress sensor, the signal of sensor acquisition is processed, and by the signal transmission after processing to intelligent processing unit, row operation and process are entered to it by intelligent processing unit, thus dut temperature stress value and actual lock rail temperature are shown in liquid crystal display.
Ferromagnetic material stress sensor operating principles：Based on piezomagnetism design, when piezomagnetism refers to ferromagnetic material and acted on by external force, its pcrmeability will be led to（Magnetic resistance）The phenomenon changing, when by tension, the permeability along force direction will raise, and the permeability perpendicular to Impact direction can reduce；Otherwise when by compressive stress, the permeability along force direction will reduce, and the permeability perpendicular to Impact direction can raise.So its pcrmeability can be changed by aforementioned rule when rail is acted on by temperature stress, if under the conditions of constant magnetomotive force, the change of pcrmeability can lead to the voltage exporting to change, thus the ess-strain of non electrical quantity is changed into the electricity that can measure（As voltage）Reach the purpose of stress monitoring.
When actually detected, two groups of ferromagnetic material stress sensors are placed on rail, rail is under zero stress state, ferromagnetic material stress sensor also has output, and the rail output valve of different model unlike material is different, so before actual measurement, the output valve under tested model rail zero stress state should be obtained in laboratory first and as reference value, the real output value of ferromagnetic material stress sensor be demarcated.
The beneficial effects of the utility model are：After the system, ferromagnetic material stress sensor only need to be placed on the actual lock rail temperature that can quick and precisely measure rail on rail by work business personnel, thus instructing workman to carry out targetedly destressing work, notable saving diffuses cost.In addition the system also can prevent the rail break accident being caused by temperature stress it is ensured that traffic safety.
Brief description
Fig. 1 is the schematic diagram of welded rail temperature stress mornitoring system；
Fig. 2 is the structural representation of ferromagnetic material stress sensor；
Fig. 3 is the ferromagnetic material stress sensor and temperature sensor arrangement schematic diagram on rail；
Fig. 4 is welded rail temperature stress mornitoring system composition structural representation（1）；
Fig. 5 is welded rail temperature stress mornitoring system composition structural representation（2）；
In figure：1st, rail；2nd, road wheel；3rd, battery；4th, vehicle frame；5th, LCDs；6th, intelligent processing unit；7th, supply module；8th, signal processing circuit；9th, sensor jack；10th, ferromagnetic material stress sensor；11st, steel rail temperature sensor.
Specific embodiment
The welded rail temperature stress mornitoring the system with reference to embodiments present invention being provided illustrates, as shown in figure 1, the welded rail temperature stress mornitoring system being provided, its concrete structure includes：Liquid crystal display 5, intelligent processing unit 6, supply module 7, signal processing circuit 8, ferromagnetic material stress sensor 9 and steel rail temperature sensor 11, and ferromagnetic material stress sensor 9, signal processing circuit 8, intelligent processing unit 6, liquid crystal display 5 and supply module 6 are sequentially connected, steel rail temperature sensor 11 is directly connected with intelligent processing unit 6；Signal processing circuit 8 is made up of pre-amplification circuit, current rectifying and wave filtering circuit, zeroing circuit, operational amplifier, A/D change-over circuit, and pre-amplification circuit, current rectifying and wave filtering circuit, zeroing circuit, operational amplifier, A/D change-over circuit are sequentially connected, pre-amplification circuit is connected with ferromagnetic material stress sensor, and A/D change-over circuit and intelligent processing unit are directly connected to.
As shown in Fig. 2 ferromagnetic material stress sensor 10 is made up of two magnet steel groups being tied with coil, as input, the coil windings of inner side are as outfan for outer coil winding；As shown in Figure 3, ferromagnetic material stress sensor and temperature sensor are arranged in surveyed rail position on rail, and intelligent processing unit 6 collection from ferromagnetic material stress sensor 10, the signal of steel rail temperature sensor 11 and carries out the temperature stress of the gentle tested rail of integrated treatment final output actual lock rail.
As shown in Figure 4,5, in practical application, various parts are installed on trolley vehicle frame 4, trolley is positioned on rail 1 by road wheel 2, by the sensor jack 9 of trolley, ferromagnetic material stress sensor 10 is positioned on rail 1 web of the rail in detection and starts to detect, after ferromagnetic material stress sensor 10 data acquisition, operation sensor jack 9 packs up ferromagnetic material stress sensor 10 and steel rail temperature sensor 11, promotes dolly to carry out the detection of the next position.In work, the DC source that battery is provided, after signal generator and power amplification circuit are transformed to alternating current power supply, supplies electricity to ferromagnetic material stress sensor 10；Signal processing circuit 8 is attached with ferromagnetic material stress sensor 10, the signal of ferromagnetic material stress sensor 10 collection is processed, and by the signal transmission after processing to intelligent processing unit 6, row operation and process are entered by the signal that intelligent processing unit 6 is gathered with steel rail temperature sensor 11 to ferromagnetic material stress sensor 10, thus dut temperature stress value and actual lock rail temperature are shown in liquid crystal display 5.
After the system, ferromagnetic material stress sensor only need to be placed on the actual lock rail temperature that can quick and precisely measure rail on rail by work business personnel, thus instructing workman to carry out targetedly destressing work, notable saving diffuses cost.
Claims (3)
1. a kind of welded rail temperature stress mornitoring system, its concrete structure includes：Supply module, steel rail temperature sensor, ferromagnetic material stress sensor, signal processing circuit, intelligent processing unit and liquid crystal display；Wherein ferromagnetic material stress sensor, signal processing circuit, intelligent processing unit, liquid crystal display and supply module are sequentially connected, and steel rail temperature sensor is directly connected with intelligent processing unit；
Described ferromagnetic material stress sensor is made up of two magnet steel groups being tied with coil；
Described signal processing circuit is made up of pre-amplification circuit, current rectifying and wave filtering circuit, zeroing circuit, operational amplifier, A/D change-over circuit；Wherein pre-amplification circuit, current rectifying and wave filtering circuit, operational amplifier and A/D change-over circuit are sequentially connected, and zeroing circuit is arranged between current rectifying and wave filtering circuit and operational amplifier；Pre-amplification circuit is connected with ferromagnetic material stress sensor, and A/D change-over circuit is connected with intelligent processing unit；
In described detecting system, alternating current needed for ferromagnetic material stress sensor, the unidirectional current being provided by supply module converts and obtains through signal generator and power amplification circuit, and remaining equipment directly provides unidirectional current by supply module.
2., it is characterised in that described ferromagnetic material stress sensor is using outer coil winding as input, the coil windings of inner side are as outfan for a kind of welded rail temperature stress mornitoring system according to claim 1.
3. a kind of welded rail temperature stress mornitoring system according to claim 1 is it is characterised in that described intelligent processing unit adopts ARM single-chip microcomputer to design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620314984.5U CN205958013U (en) | 2016-04-15 | 2016-04-15 | Continuous welded rail steel rail temperature stress detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620314984.5U CN205958013U (en) | 2016-04-15 | 2016-04-15 | Continuous welded rail steel rail temperature stress detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958013U true CN205958013U (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620314984.5U Expired - Fee Related CN205958013U (en) | 2016-04-15 | 2016-04-15 | Continuous welded rail steel rail temperature stress detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758463A (en) * | 2016-04-15 | 2016-07-13 | 山西科为感控技术有限公司 | Continuous welded rail track temperature stress detecting system |
-
2016
- 2016-04-15 CN CN201620314984.5U patent/CN205958013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758463A (en) * | 2016-04-15 | 2016-07-13 | 山西科为感控技术有限公司 | Continuous welded rail track temperature stress detecting system |
| CN105758463B (en) * | 2016-04-15 | 2018-11-20 | 山西科为感控技术有限公司 | Welded rail temperature stress mornitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20190415 |