CN208155480U - Fiber grating train wheel temperature sensor - Google Patents
Fiber grating train wheel temperature sensor Download PDFInfo
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- CN208155480U CN208155480U CN201820784430.0U CN201820784430U CN208155480U CN 208155480 U CN208155480 U CN 208155480U CN 201820784430 U CN201820784430 U CN 201820784430U CN 208155480 U CN208155480 U CN 208155480U
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- fiber grating
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- black matrix
- temperature sensor
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Abstract
Fiber grating Train Wheel temperature sensor, belongs to sensor field, to solve the problems, such as existing wheel temperature sensor in the presence of big by such environmental effects, precision is low, the service life is short, temperature-measuring range is small.The utility model includes fiber grating, vitreum, black matrix structure, metallic matrix, heat insulating block, shell, cover board, seal rubber plug, armored optical cable and fixing piece；Fiber grating, black matrix structure, metallic matrix and heat insulating block are mounted in the inner cavity of shell, optical fiber Bragg grating encapsulation is in metallic matrix, the upper surface of metallic matrix is provided with black matrix structure, thermal grease layer is arranged in metallic matrix and the contact surface of black matrix structure, heat insulating block is arranged in the lower surface of metallic matrix, window is provided on the shell of black matrix structure upper, vitreum is installed on window, fiber grating is drawn by armored optical cable, armored optical cable is mounted on the external side of shell by fixing piece, seal rubber plug is installed between fixing piece and shell, cover board is mounted on the bottom end of shell.For to the real-time non-contact detecting of wheel temperature.
Description
Technical field
The utility model relates to a kind of fiber grating temperature sensors, belong to sensor field.
Background technique
With comprehensive speed-raising of passenger train and high-speed overload implementation, the safe operation of train is particularly significant, with
Passenger's life, property safety are closely bound up.Wheel is the critical component of train, when train normally travel, brake block and wheel
It is in the open state, if brake block and wheel, which are in closed state, will cause phase mutual friction, it will lead to the serious mill of wheel
Damage, causes frictional heat generation.When serious wear, a large amount of improper fevers can be generated, gently then lead to Wheel deflection, it is heavy then cause to arrange
Vehicle is overstepped the limit phenomenon, and railway traffic transportation safety is seriously affected.
Contact-type electronic temperature transducer traditional at present, can not be mounted on high-speed rotating wheel, and infrared measurement of temperature
Mode be easy interference by factors such as dust dusts storm again, influence thermometric effect or even cisco unity malfunction.
Optical fiber sensing technology is from coming out the seventies, by the extensive concern of industry, with the hair of fiber optic sensor technology
Exhibition, fiber-optic grating sensor fast development in engineer application are got up.Fiber grating temperature sensor use fiber grating as
Temperature sensing unit has the characteristics that small in size, high sensitivity, corrosion-resistant, electromagnetism interference.
Utility model content
The utility model aim is to solve existing wheel temperature sensor in the presence of big by such environmental effects, precision is low, the longevity
Problem short, that temperature-measuring range is small is ordered, a kind of fiber grating Train Wheel temperature sensor is provided.
Fiber grating Train Wheel temperature sensor described in the utility model, it include fiber grating, vitreum, black matrix structure,
Metallic matrix, heat insulating block, shell, cover board, seal rubber plug, armored optical cable and fixing piece；
Fiber grating, black matrix structure, metallic matrix and heat insulating block are mounted in the inner cavity of shell, and optical fiber Bragg grating encapsulation is in gold
Belong in matrix, the upper surface of metallic matrix is provided with black matrix structure, the contact surface setting thermal conductive silicon of metallic matrix and black matrix structure
Rouge layer, the lower surface of metallic matrix are arranged heat insulating block, are provided with window on the shell of black matrix structure upper, are equipped with glass on window
Body, fiber grating are drawn by armored optical cable, and armored optical cable is mounted on the external side of shell by fixing piece, fixing piece with outside
Seal rubber plug is installed, cover board is mounted on the bottom end of shell between shell.
The advantages of the utility model：Fiber grating Train Wheel temperature sensor described in the utility model is made using fiber grating
For temperature element, measurement accuracy is high, temperature-measuring range is big, long service life, electromagnetism interference；Using the glass of high IR transmissive crystalline
Glass body and black matrix structure guarantee accurately measure infrared emanation in the case where non-contact temperature measuring；Using insulation construction, keep away
Exempt to be effected by environmental factors.The utility model structure is simple, is easily installed, and can be realized contactless temperature-measuring.This is practical
The novel fiber grating Train Wheel temperature sensor can be to temperature fast response, and long-time service stability is good, can be to vehicle
Take turns the real-time non-contact detecting of temperature.
Detailed description of the invention
Fig. 1 is the external structure top view of fiber grating Train Wheel temperature sensor described in the utility model；
Fig. 2 is the cross-sectional view of fiber grating Train Wheel temperature sensor described in the utility model.
Specific embodiment
Specific embodiment one：Illustrate present embodiment, fiber grating described in present embodiment below with reference to Fig. 1 and Fig. 2
Train Wheel temperature sensor, it includes fiber grating 1, vitreum 2, black matrix structure 3, metallic matrix 4, heat insulating block 5, shell 6, lid
Plate 7, seal rubber plug 8, armored optical cable 9 and fixing piece 10；
Fiber grating 1, black matrix structure 3, metallic matrix 4 and heat insulating block 5 are mounted in the inner cavity of shell 6, fiber grating 1
It is encapsulated in metallic matrix 4, the upper surface of metallic matrix 4 is provided with black matrix structure 3, and metallic matrix 4 and black matrix structure 3 connect
Thermal grease layer is arranged in contacting surface, and the lower surface of metallic matrix 4 is arranged heat insulating block 5, is provided with window on the shell 6 on 3 top of black matrix structure
Mouthful, vitreum 2 is installed, fiber grating 1 is drawn by armored optical cable 9, and armored optical cable 9 is mounted on by fixing piece 10 on window
The external side of shell 6, is equipped with seal rubber plug 8 between fixing piece 10 and shell 6, cover board 7 is mounted on the bottom end of shell 6.
In present embodiment, fiber grating 1 is encapsulated in metallic matrix 4, and metallic matrix 4 not only plays guarantor to fiber grating 1
Shield effect, and have sensitization to sensor, improve measurement accuracy.
In present embodiment, armored optical cable 9 is mounted on the external side of shell 6, side outlet method by fixing piece 10
It can reduce installation space.Fixing piece 10 is mounted on the external side of shell 6 by helicitic texture.Armored optical cable 9 includes spiral
Steel-tape armouring, aramid fiber and metal work out net, tension, it is anti-roll and damaged by rats, fracture, curved will not occur when pillow is installed and used
Discount as.Aramid fiber and metal establishment net are compressed on the tail end of fixing piece 10 by armored optical cable 9, are guaranteed installation strength, are prevented
Optical fiber is broken when use.
Specific embodiment two：Present embodiment is described further embodiment one, and vitreum 2 is saturating using high IR
Crystal is penetrated, is mounted on by sealant on the window that shell 6 opens up.
In present embodiment, vitreum 2 not only can protect the internal structure of shell 6, radix saposhnikoviae, waterproof and dustproof, can be with
High efficiency transmission infra-red radiation does not influence the transmission of heat.
Specific embodiment three：Present embodiment is described further embodiment one, and black matrix structure 3 is turned using photo-thermal
Film is changed to be made.
In present embodiment, black matrix structure 3 is a kind of ideal structure that can all absorb external radiation, is not radiated
Transmission and reflex occur, the infra-red radiation that vitreum 2 transmits can be wholly converted into heat, increase temperature measurement accuracy.
Specific embodiment four：Present embodiment is described further embodiment one, and heat insulating block 5 uses high temperature resistant silicon
Sour aluminium ceramic fiber cotton, with a thickness of 12mm.
In present embodiment, using the high temperature resistant alumina silicate ceramic fiber cotton with a thickness of 12mm by fiber grating 1, black matrix knot
Structure 3 and metallic matrix 4 surround, and can be avoided the loss of heat, the heat that black matrix structure 3 is converted all is acted on fiber grating
On 1, guarantee the precision of measurement.
Specific embodiment five：Present embodiment is described further embodiment one, and cover board 7 is pacified by fastening screw
Mounted in the bottom end of shell 6.
In present embodiment, cover board 7 can protect internal structure, be sealed during installation using sealant.
Specific embodiment six：Present embodiment is described further embodiment one or five, and peace is provided on cover board 7
Fill hole.
In present embodiment, installation of the mounting hole for sensor is fixed.
In the utility model, temperature element is used as using fiber grating 1, fiber grating 1 is encapsulated on metallic matrix 4, gold
Belong to matrix 4 to be made of sheet copper, not only can protect fiber grating 1 will not bend and vibrate easily, while specific heat capacity is small, warm
Degree balance is fast；Fiber grating 1 is drawn by armored optical cable 9, and armored optical cable 9 is sealed by the seal rubber plug 8 that front end is installed, and is protected
It demonstrate,proves sensor and seals waterproof；The upper surface of metallic matrix 4 tightly covers one layer of black matrix structure 3, can be efficiently by infra-red radiation
It is converted into heat, heat insulating block 5 is using the high temperature resistant alumina silicate ceramic fiber cotton with a thickness of 12mm by fiber grating 1, black matrix structure 3
It is surrounded with metallic matrix 4, the heat that black matrix structure 3 is converted can all be acted on into fiber grating 1 to avoid the loss of heat
On, guarantee measurement accuracy.
Claims (6)
1. fiber grating Train Wheel temperature sensor, which is characterized in that it includes fiber grating (1), vitreum (2), black matrix structure
(3), metallic matrix (4), heat insulating block (5), shell (6), cover board (7), seal rubber plug (8), armored optical cable (9) and fixing piece
(10)；
Fiber grating (1), black matrix structure (3), metallic matrix (4) and heat insulating block (5) are mounted in the inner cavity of shell (6), optical fiber
Grating (1) is encapsulated in metallic matrix (4), and the upper surface of metallic matrix (4) is provided with black matrix structure (3), metallic matrix (4) and
Thermal grease layer is arranged in the contact surface of black matrix structure (3), and heat insulating block (5) are arranged in the lower surface of metallic matrix (4), black matrix structure
(3) it is provided with window on the shell (6) on top, is equipped on window vitreum (2), fiber grating (1) is drawn by armored optical cable (9)
Out, armored optical cable (9) is mounted on the external side of shell (6) by fixing piece (10), pacifies between fixing piece (10) and shell (6)
Equipped with seal rubber plug (8), cover board (7) is mounted on the bottom end of shell (6).
2. fiber grating Train Wheel temperature sensor according to claim 1, which is characterized in that vitreum (2) uses Gao Hong
Outer transmissive crystalline is mounted on the window that shell (6) opens up by sealant.
3. fiber grating Train Wheel temperature sensor according to claim 1, which is characterized in that black matrix structure (3) uses light
Hot-cast socket film is made.
4. fiber grating Train Wheel temperature sensor according to claim 1, which is characterized in that heat insulating block (5) uses resistance to height
Warm alumina-silicate ceramic fibre cotton, with a thickness of 12mm.
5. fiber grating Train Wheel temperature sensor according to claim 1, which is characterized in that cover board (7) passes through fastening spiral shell
Silk is mounted on the bottom end of shell (6).
6. fiber grating Train Wheel temperature sensor according to claim 1 or 5, which is characterized in that cover board is provided on (7)
Mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784430.0U CN208155480U (en) | 2018-05-24 | 2018-05-24 | Fiber grating train wheel temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784430.0U CN208155480U (en) | 2018-05-24 | 2018-05-24 | Fiber grating train wheel temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208155480U true CN208155480U (en) | 2018-11-27 |
Family
ID=64388232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820784430.0U Active CN208155480U (en) | 2018-05-24 | 2018-05-24 | Fiber grating train wheel temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208155480U (en) |
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2018
- 2018-05-24 CN CN201820784430.0U patent/CN208155480U/en active Active
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