CN209783540U - Non-contact type track plate vertical temperature deformation measuring device - Google Patents
Non-contact type track plate vertical temperature deformation measuring device Download PDFInfo
- Publication number
- CN209783540U CN209783540U CN201920787086.5U CN201920787086U CN209783540U CN 209783540 U CN209783540 U CN 209783540U CN 201920787086 U CN201920787086 U CN 201920787086U CN 209783540 U CN209783540 U CN 209783540U
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- Prior art keywords
- sensor
- laser displacement
- track
- vertical temperature
- fixing tool
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Abstract
The utility model relates to a vertical temperature deformation measuring device of non-contact track board, be in including safety cover and setting laser displacement sensor, the fixed frock of sensor, circle level gauge, the auxiliary sheet of finding range in the safety cover, laser displacement sensor passes through the fixed frock of sensor and fixes the side at the track board, laser displacement sensor's transmitter is corresponding to the auxiliary sheet of finding range that sets up at the upper surface of supporting layer down, circle level gauge sets up on the fixed frock of sensor, the safety cover is fixed on the supporting layer. Compared with the prior art, the utility model discloses use the vertical displacement volume of track board and mortar layer separation joint that laser displacement sensor non-contact ground direct accurate measurement produced because the temperature effect, very big work load and equipment cost of having alleviateed to improve work efficiency and data acquisition's integrality, provide accurate data support for later stage workman's maintenance work, thereby guarantee the normal operating of train, have advantages such as use cost is low, convenient operation.
Description
Technical Field
The utility model belongs to the technical field of the railway engineering technique and specifically relates to a vertical temperature deformation measuring device of non-contact track board is related to.
Background
With the rapid development of high-speed railways in China, the requirements on comfort and safety are continuously improved, the requirements on high stability and high smoothness of the rails are higher and higher, and higher requirements are put forward on the rail structures of the high-speed railways. At present, the high-speed railway track part in China is damaged in different degrees, and the deformation is obvious by the vertical temperature of the track plate. Because under the continuous high temperature effect of summer, the inside heat accumulation of track structure can't in time diffuse, easily forms vertical temperature gradient and lasts the effect. Under the action of the temperature gradient, the track slab generates warping deformation to cause a gap between the track slab and the mortar layer, and along with the further development of the gap, the mortar layer can be cracked and fall off, the phenomenon of the gap of the track slab can occur, and the phenomenon can generate very adverse influence on the stress of the track structure.
At present, the measurement of the vertical temperature deformation of the track slab mainly includes manual measurement and contact measurement. Due to the fact that time of the railway skylight is limited, the manual measurement method and the contact measurement method have the defects of low measurement efficiency, large workload, incoherent measurement data, low precision, time and labor waste and the like, and are not beneficial to rapid measurement of temperature deformation of the track slab.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a vertical temperature deformation measuring device of non-contact track board in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a vertical temperature of non-contact track board warp measuring device, is in including safety cover and setting laser displacement sensor, the fixed frock of sensor, circle level, the supplementary piece of range finding in the safety cover, laser displacement sensor passes through the fixed frock of sensor and fixes the side at the track board, laser displacement sensor's transmitter is corresponding to the supplementary piece of range finding that sets up at the upper surface of supporting layer down, circle level sets up on the fixed frock of sensor, the safety cover is fixed on the supporting layer.
Preferably, a movable door is arranged at the top of the sensor fixing tool.
Preferably, one end of the movable door is hinged to the side edge of the sensor fixing tool, and the other end of the movable door is connected with the other side edge of the sensor fixing tool through a buckle.
Preferably, the laser displacement sensor is connected with the main control cabinet outside the track and the power module.
Preferably, one side of the sensor fixing tool facing the track plate is provided with an opening, and the left side and the right side of the sensor fixing tool are respectively provided with a first connecting plate.
preferably, one side and the bottom of the protection cover towards the track plate are both open, and the left side and the right side of the bottom are respectively provided with a second connecting plate.
Preferably, a sensor cable port is formed in the protective cover.
Preferably, the fixed frock of sensor passes through chemical crab-bolt and track board fixed connection, the safety cover passes through chemical crab-bolt and supporting layer fixed connection.
Compared with the prior art, the utility model has the advantages of it is following:
1. Under the condition that does not influence high-speed train normal operation, use the vertical displacement volume of the track board that the laser displacement sensor direct accurate measurement produced because the temperature effect is with mortar layer crack, very big work load and equipment cost have alleviateed to work efficiency and data acquisition's integrality has been improved, the maintenance work for later stage workman provides accurate data support, thereby guarantee the normal operating of train, have that use cost is low, convenient operation, the maintenance is simple, measuring result is stable advantage.
2. The sensor is prevented from being interfered by external factors through the sensor fixing tool and the protective cover, so that the accuracy of data is guaranteed.
3. The round level is arranged on the sensor fixing tool, so that the sensor is perpendicular to the supporting layer, and the accuracy of detection data is improved.
4. A simple movable door is installed on the sensor fixing tool, so that the debugging and calibration of the sensor can be realized without disassembling the tool, and the later maintenance and overhaul are facilitated.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the sensor fixing tool of the present invention;
FIG. 3 is a schematic structural view of the movable door of the present invention;
FIG. 4 is a schematic view of the installation positions of the sensor fixing tool and the distance measuring auxiliary plate of the present invention;
Fig. 5 is a schematic view of the overall installation of the present invention.
Wherein: the method comprises the following steps of 1-a circular level, 2-a protective cover, 3-a chemical anchor bolt, 4-a sensor cable, 5-a laser displacement sensor, 6-a sensor fixing tool, 7-a first connecting plate, 8-a movable door, 9-a buckle, 10-a track plate, 11-a separation seam, 12-a supporting layer, 13-a distance measuring auxiliary sheet, 14, a second connecting plate, 15 and a sensor cable port.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
As shown in fig. 1, the present application provides a non-contact track slab vertical temperature deformation measuring device, which includes a protection cover 2, and a laser displacement sensor 5, a sensor fixing tool 6, a circular level 1, and a distance measuring auxiliary sheet 13, which are arranged in the protection cover 2. The laser displacement sensor 5 is fixed in the sensor fixing tool 6, and as shown in fig. 2, the sensor fixing tool 6 is fixed on the side surface of the track slab 10. The emitter of the laser displacement sensor 5 faces downward corresponding to the distance measuring auxiliary piece 13 provided on the upper surface of the support layer 12. The circular level 1 is provided on the sensor fixing tool 6 in order to judge whether the entire device is in a perpendicular state to the supporting layer 12. The protective cover 2 is fixed to the support layer 12.
The laser displacement sensor 5 is used for measuring the vertical displacement of the gap 11 of the track slab 10 caused by the temperature effect, the device adopts a semiconductor laser displacement sensor with the precision of 0.01mm, the effective range of the semiconductor laser displacement sensor is 20-50 mm, the device adopts two types of red safe laser, and the waterproof grade is IP 67. In this embodiment, the laser displacement sensor 5 specifically employs a FASTUS CD22 series displacement sensor.
The laser displacement sensor 5 measures displacement by adopting the principle of a laser triangulation method: the laser emitter emits a visible laser beam to the surface of an object to be tested through the lens, the visible laser beam enters the lens of the receiver after being reflected by the object and is received by the internal photosensitive device, the viewpoint that the photosensitive device sees at different angles also presents different states according to different distances, high-speed operation is carried out through digital signal simulation according to the angle and the known distance between the laser and the photosensitive device, and the length to be tested can be measured in real time. Because the processing speed is very high, the displacement of the object can be measured even if the position of the light spot changes at any time when the object moves suddenly in the measuring process. In the device, red laser emitted by a laser displacement sensor 5 is sent to a distance measurement auxiliary sheet 13, reflected by the distance measurement auxiliary sheet 13, received by a receiver in the sensor, and subjected to a digital signal processing process to calculate the distance.
The laser displacement sensor is connected with the main control case and the power module outside the track. The sensor cable 4 is a three-core wire, wherein red and black are respectively a positive electrode and a negative electrode of a power supply, the yellow wire is a data transmission line, the data line of the sensor cable 4 is connected with a cable of a main control case of the laser displacement sensor, and the main control case of the laser displacement sensor is placed on the outer side of a track and has a certain safety distance. The positive and negative power lines of the sensor cable 4 are connected to a power module, in this embodiment, the power module is a solar power supply device, and the solar cell panel is disposed outside the track, for example, under a high-speed rail viaduct.
Because the laser displacement sensor 5 is a precision instrument and is easily influenced by sunshine, rainwater and temperature, the protective cover 2 plays a vital role. The protective cover 2 and the sensor fixing tool 6 are made of stainless steel, and the vertical central lines of the protective cover 2, the sensor fixing tool 6 and the distance measuring auxiliary sheet 13 are positioned on the same straight line during installation.
In this embodiment, the sensor fixing tool 6 has a cubic shape, and has openings on both sides of a surface facing the track plate 10 and a bottom surface, and the left and right sides of the surface facing the track plate 10 are respectively provided with the first connecting plates 7. The protective cover 2 has a cubic shape, and is open at both sides and bottom thereof facing the track plate 10, and the left and right sides of the bottom are respectively provided with second connecting plates 14. The protective cover 2 is also provided with a sensor cable port 15.
In this embodiment, the protection cover 2 and the sensor fixing tool 6 are both fixed by the chemical anchor bolt 3. The distance measurement auxiliary sheet 13 is made of non-reflective black hard plastic material and is fixed on the supporting layer 12 by strong adhesive glue.
As shown in fig. 3, an openable movable door 8 is installed on the top of the sensor fixing tool 6. One end of the movable door 8 is hinged with the side edge of the sensor fixing tool 6, and the other end of the movable door is connected with the other side edge of the sensor fixing tool 6 through a buckle 9. The action of the movable door 8 is that the laser displacement sensor 5 can be flexibly debugged and calibrated under the condition that the tool is not disassembled, and convenience is provided for later maintenance and repair.
as shown in fig. 4, when the device is installed, the laser displacement sensor 5 is firstly adhered in the sensor fixing tool 6 by using strong glue; then measuring the distance of the measuring range of the laser displacement sensor 5, marking the position, corresponding to the first connecting plate 7, on the side surface of the track plate 10, ensuring that a leveling bubble of the circular level 1 on the sensor fixing tool 6 is positioned in the center, ensuring that the laser displacement sensor 5 is perpendicular to the supporting layer 12, and then removing the sensor fixing tool 6; drilling two bolt holes at the marked positions, and fixing a sensor fixing tool 6 on the side surface of the track slab 10 by using a chemical anchor bolt 3, so that the distance from the laser displacement sensor 5 to the supporting layer 12 is always kept within a measuring range; waterproof glue is uniformly coated on gaps between the chemical anchor bolt 3 and the sensor fixing tool 6, so that the laser displacement sensor 5 is not interfered by rainwater; the distance measurement auxiliary sheet 13 is attached to the support layer 12 with a strong adhesive so that the distance measurement auxiliary sheet 13 is positioned directly below the laser displacement sensor 5.
As shown in fig. 5, when the protective cover 2 is installed, the protective cover 2 is first placed on the supporting layer 12 so that the distance measuring auxiliary piece 13 is entirely located in the protective cover 2 and the sensor cable 4 is ensured to pass through the sensor cable port 15 on the bottom side of the protective cover 2; at this time, the supporting layer 12 is marked corresponding to the connecting hole of the second connecting plate 14 on the protective cover 2, and the protective cover 2 is removed; 2 bolt holes are drilled at the marked positions, and the protective cover 2 is fixed on the supporting layer 12 through chemical anchor bolts 3; and finally, uniformly coating waterproof glue on gaps around the protective cover 2 and the chemical anchor bolts 3.
The fixed positions of the sensor fixing tool 6 and the protective cover 2 are preferably kept away from the position where the steel bars in the track slab 10 are arranged, and the contact part of the distance measurement auxiliary sheet 13 and the supporting layer 12 needs to be polished in advance to ensure that the distance measurement auxiliary sheet 13 and the supporting layer 12 are firmly adhered.
the device realizes continuous measurement of vertical temperature deformation of the non-contact track slab 10, and ensures that the sensor is not interfered by external factors, thereby ensuring the accuracy of data. The vertical displacement of the gap 11 between the track slab 10 and the supporting layer 12 can be directly and accurately measured by using the laser displacement sensor 5 under the condition of not influencing the normal operation of the high-speed train, so that the workload and the equipment cost are greatly reduced, the working efficiency and the integrity of data acquisition are improved, and accurate data support is provided for the maintenance work of later-stage workers.
Claims (8)
1. The utility model provides a vertical temperature of non-contact track board warp measuring device, its characterized in that is in including safety cover and setting laser displacement sensor, the fixed frock of sensor, circle level, the supplementary piece of range finding in the safety cover, laser displacement sensor passes through the fixed frock of sensor and fixes the side at the track board, laser displacement sensor's transmitter is corresponding to the supplementary piece of range finding of the upper surface setting at the supporting layer down, circle level sets up on the fixed frock of sensor, the safety cover is fixed on the supporting layer.
2. The non-contact type track slab vertical temperature deformation measuring device according to claim 1, wherein a movable door is arranged at the top of the sensor fixing tool.
3. The non-contact track slab vertical temperature deformation measuring device according to claim 2, wherein one end of the movable door is hinged to the side edge of the sensor fixing tool, and the other end of the movable door is connected with the other side edge of the sensor fixing tool through a buckle.
4. The non-contact track slab vertical temperature deformation measurement device according to claim 1, wherein the laser displacement sensor is connected with a main control cabinet and a power supply module outside the track.
5. The non-contact track slab vertical temperature deformation measuring device according to claim 1, wherein one side of the sensor fixing tool facing the track slab is open, and the left side and the right side of the sensor fixing tool are respectively provided with a first connecting plate.
6. The non-contact type track plate vertical temperature deformation measuring device according to claim 1, wherein the side of the protective cover facing the track plate and the bottom of the protective cover are both open, and the left and right sides of the bottom are respectively provided with the second connecting plate.
7. The non-contact track slab vertical temperature deformation measurement device according to claim 1, wherein the protective cover is provided with a sensor cable port.
8. The non-contact type track plate vertical temperature deformation measuring device according to claim 1, wherein the sensor fixing tool is fixedly connected with the track plate through a chemical anchor bolt, and the protective cover is fixedly connected with the supporting layer through a chemical anchor bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920787086.5U CN209783540U (en) | 2019-05-29 | 2019-05-29 | Non-contact type track plate vertical temperature deformation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920787086.5U CN209783540U (en) | 2019-05-29 | 2019-05-29 | Non-contact type track plate vertical temperature deformation measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209783540U true CN209783540U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920787086.5U Expired - Fee Related CN209783540U (en) | 2019-05-29 | 2019-05-29 | Non-contact type track plate vertical temperature deformation measuring device |
Country Status (1)
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| CN (1) | CN209783540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597661A (en) * | 2022-09-29 | 2023-01-13 | 同济大学（Cn） | Method and system for detecting and evaluating actual bar planting effect of ballastless track |
-
2019
- 2019-05-29 CN CN201920787086.5U patent/CN209783540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597661A (en) * | 2022-09-29 | 2023-01-13 | 同济大学（Cn） | Method and system for detecting and evaluating actual bar planting effect of ballastless track |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191213 |