CN103982502B - A kind of strain gauge adhesion fixing device detected for rail stress - Google Patents
A kind of strain gauge adhesion fixing device detected for rail stress Download PDFInfo
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- CN103982502B CN103982502B CN201410216612.4A CN201410216612A CN103982502B CN 103982502 B CN103982502 B CN 103982502B CN 201410216612 A CN201410216612 A CN 201410216612A CN 103982502 B CN103982502 B CN 103982502B
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Abstract
A kind of strain gauge adhesion fixing device for rail stress detection of the present invention belongs to railway security detection technique field, relates to the strain gauge adhesion fixing device detected rail stress.This device is made up of mechanical grip part and electric power heating part, and wherein, mechanical grip part is made up of permanent magnet, spring, set screw, upper plate and lower roof plate; Electric power heating part comprises organic glass sheet, electric heating wire, temperature detect switch (TDS), heat conducting film and screw.Electric heating wire is arranged on the upper surface of plexiglass; With glue, temperature detect switch (TDS) is fixed in the center hole of plexiglass sheet, and in hole, is coated with heat conductive silica gel to equal with end face; Heat conducting film is pasted onto on electric heating wire.The present invention is used for the strain gauge adhesion fixing device that rail stress detects, and this device eliminates artificial fixing foil gauge process, improves the reliability of stickup foil gauge, improves the efficiency of pasting foil gauge; This device has constant temperature heating device, ensure that the quality of pasting foil gauge under cryogenic.
Description
Technical field
The invention belongs to railway security detection technique field, be specifically related to the strain gauge adhesion fixing device detected for rail stress.
Technical background
Gapless track eliminates gap between rail and joint, and eliminating the wheel-rail impact power of joint, have the stationarity of high speed traveling, is the track structure that current high-speed railway adopts.When variation of ambient temperature, gapless track inside can produce very large axially temperature stress.Detect the TEMPERATURE FORCE of seamless track steel rail, can Timeliness coverage TEMPERATURE FORCE unusual condition, instruct railway worker to the maintenance of gapless track and maintenance, high-speed railway is runed safely and has great importance.The detection of rail temperature force mainly contains observation stake method, deflection Loading Method, magento-elastic method and Strain Method etc., wherein Strain Method be utilize rail to strain and temperature to resolve rail temperature force, have without the need to dismantle rail, resolution high, the advantages such as Real-Time Monitoring can be realized especially receive publicity.At present, the installation of foil gauge on rail generally adopts gluing, and then glue be coated on foil gauge by first rail grinding, then by the precalculated position of strain gauge adhesion Rail Surface after polishing, finally pins foil gauge with hand and waits for that the glue solidifies.For the operating gapless track of military service, although this method is simple to operate.But reliability, the stability of its operation cannot ensure, and efficiency is lower.The maintenance and repair widow time of rail in running of being on active service is short, and in-site installation condition is poor.In low temperature environment, the glue solidifies needs certain hour, needs to keep the firm of foil gauge in this set time, and people is the dislocation that the method pinned often causes foil gauge, causes paste position deviation.And under cryogenic, glue is difficult to solidify, easily causing is pasted not strongly leans on.In addition, accurate and comprehensive in order to what measure, often need to lay multisensor, the method efficiency of artificial stickup is lower, and reliability is difficult to guarantee.
Summary of the invention
The object of the invention is manually to paste poor stability, poor reliability, inefficient problem for foil gauge on existing rail, invent a kind of strain gauge adhesion fixing device detected for rail stress, there is heating function, improve the reliability of strain gauge adhesion, improve sticking efficiency.This device, by the mode of magnetic-adsorption, applies suitable pressure to foil gauge, thus reaches the fixation to foil gauge in the glue solidifies process.In addition, there are in this device Resistant heating parts, can heat foil gauge, glue normal cure can be made under cryogenic, ensure sticking Quality.
The technical solution used in the present invention is the strain gauge adhesion fixing device detected for rail stress, it is characterized in that, this device is made up of mechanical grip part and electric power heating part, wherein, mechanical grip part comprises shell 4, permanent magnet 5, spring 12, set screw 14, upper plate 11 and lower roof plate 13; Electric power heating part comprises organic glass sheet 9, electric heating wire 8, temperature detect switch (TDS) 10, heat conducting film 7 and screw 6;
In mechanical grip part, shell 4 is cylindrical structure, and one end open is closed in one end, process several around opening end and be uniformly distributed step hole d, closed end center processes a through hole a, and through hole bilateral symmetry is processed with two tapped hole b, and shell 4 side is processed with two parallel slot c; Permanent magnet 5 is Intermediate Gray foraminate button shape magnet, and several permanent magnets 5 to be arranged on shell 4 in several equally distributed step hole d respectively; One end of spring 12 is welded with upper plate 11, and the other end welds with lower roof plate 13; Lower roof plate 13 has a central through bore and two tapped holes, and lower roof plate 13 is fixed on bottom shell 4 by set screw 14; Shell 4 and lower roof plate 13 are fixed together by two tapped hole b that two set screws 14 are each passed through shell 4 closed end;
In electric power heating part, plexiglass sheet 9 is circular, and its center is processed with a through hole; Electric heating wire 8 is arranged on the upper surface of plexiglass 9; With glue, temperature detect switch (TDS) 10 is fixed in the center hole of plexiglass sheet 9, and in hole, is coated with heat conductive silica gel to equal with end face; Heat conducting film 7 is circular, and size is consistent with plexiglass sheet, is pasted onto on electric heating wire 8; Plexiglass sheet 9 is connected with upper plate 11 by screw 6.
Remarkable result of the present invention is: the present invention is used for the strain gauge adhesion fixing device that rail stress detects, and this device eliminates artificial fixing foil gauge process, improves the reliability of stickup foil gauge, improves the efficiency of pasting foil gauge; This device has constant temperature heating device, ensure that the quality of pasting foil gauge under cryogenic.
Accompanying drawing explanation
Fig. 1 is the strain gauge adhesion fixing device side schematic diagram that the present invention detects for rail stress, wherein, 1. rail, 2. for the strain gauge adhesion fixing device that rail stress detects, 3. foil gauge.
Fig. 2 is the structure diagram of fixing device of the present invention, 4. shell, 5. permanent magnet, 6. screw, 7. heat conducting film, 8. electric heating wire, 9. plexiglass sheet, 10. temperature detect switch (TDS), 11. top pieces, 12. springs, 13. times top flats, 14. set screws, a. through hole, b. tapped hole, c. parallel slot, d. step hole.
Fig. 3 is the half sectional view of plan view of the present invention.
Embodiment
Below in conjunction with accompanying drawing and technological scheme, the enforcement to patent of the present invention is described in further detail.The strain gauge adhesion fixing device of invention is adsorbed on steel rail web place by permanent magnet, the spring of extruding shell 4 inside thus produce pressure and act on top piece, pushes down by top piece the effect that foil gauge reaches fixing; Simultaneously electric heating wire switches on power the break-make of heating, temp control switch control circuit, strain gauge adhesion region is remained on the applicable temperature that the glue solidifies.
The present invention is made up of shell 4, permanent magnet 5, screw 6, heat conducting film 7, electric heating wire 8, plexiglass sheet 9, temperature detect switch (TDS) 10, upper plate 11, spring 12, lower roof plate 13 and set screw 14.See Fig. 2.
In embodiment, shell 4 is manufactured by aluminum alloy material, and outward appearance is the tubular that one end is closed, external diameter is 70mm, and internal diameter is 50mm, is highly 60mm, closed end thickness is 7mm, and side has two parallel slot c, and width is 20mm, wherein, closed end center processes the through hole a that a diameter is 10mm, for drawing foil gauge wire, through hole both sides process two M3 tapped hole b, process 10 around opening end and be uniformly distributed step hole d, each step hole d diameter is 10mm, is highly 2mm.10 permanent magnets 5 are button shape, and middle is the through hole of 3mm with diameter, and 10 permanent magnets 5 are fixed in 10 step hole d of shell 4 opening end respectively by screw 14, and the magnetic force scope of permanent magnet is 20-24N, for pasting the applicable pressure that foil gauge provides.Spring 12 is cylindrically coiled spring, and external diameter is 30mm, and free length is 60mm, and elasticity coefficient is 15N/cm, and two ends polish, and its one end is welded with upper plate 11, and the other end welds with lower roof plate 13.Upper plate 11, lower roof plate 13 material are 45 steel, diameter is 45mm, thickness is 2.5mm, upper plate 11 processes the central through bore and two M2 tapped holes that a diameter is 15mm, lower roof plate 13 processes the central through bore and two M3 tapped holes that a diameter is 10mm, wherein, lower roof plate 13 is fixed in shell 4 by set screw 14.Plexiglass sheet 9 is circular, and diameter is identical with upper plate 11, and the heart processes a diameter slightly larger than the through hole of temperature detect switch (TDS) 10 and two M2 tapped holes wherein, is connected with upper plate 11 by screw 6.Electric heating wire 8 is fixed on plexiglass sheet 9, and to connect with temperature detect switch (TDS) 10 put in circuit with wire, electric heating wire 8 pastes one deck heat conducting film 7 above, for Transmit evenly heat.Temperature detect switch (TDS) 10 end face installed is not higher than plexiglass sheet end face, and temperature detect switch (TDS) 10 glue is fixed in plexiglass sheet 9 center hole, and end face a little less than plexiglass sheet, and is coated with heat conductive silica gel to equal with end face in hole.
During the work of this device, first foil gauge 3 is arranged on device, by magnetic-adsorption at steel rail web place, as shown in Figure 1.Acted on top piece by spring force, and by top piece push down foil gauge make it keep motionless.When low temperature environment, by power supply to the electric-heating-wire-heating in this device, temperature detect switch (TDS) controls electric heating wire temperature, makes sticking area temperature remain on the applicable setting temperature of foil gauge glue.Such as, make stickup foil gauge temperature remain on 65 DEG C, make stickup glue energy normal cure, ensure strain gauge adhesion quality.
Claims (1)
1., for the strain gauge adhesion fixing device that rail stress detects, it is characterized in that, this device is made up of mechanical grip part and electric power heating part; Mechanical grip part is made up of shell (4), permanent magnet (5), spring (12), set screw (14), upper plate (11) and lower roof plate (13); Electric power heating part is made up of machine glass sheet (9), electric heating wire (8), temperature detect switch (TDS) (10), heat conducting film (7) and screw (6);
In mechanical grip part, shell (4) is cylindrical structure, one end open is closed in one end, process several around opening end and be uniformly distributed step hole (d), closed end center processes a through hole (a), through hole bilateral symmetry is processed with two tapped holes (b), and shell (4) side is processed with two parallel slots (c); Permanent magnet (5) is Intermediate Gray foraminate button shape magnet, and several permanent magnets (5) are arranged in shell (4) several equally distributed step holes (d) upper respectively; One end of spring (12) is welded with upper plate (11), and the other end welds with lower roof plate (13); Lower roof plate (13) has a central through bore and two tapped holes, and lower roof plate (13) is fixed on shell (4) bottom by set screw (14); Shell (4) and lower roof plate (13) are fixed together by two tapped holes (b) that two set screws (14) are each passed through shell (4) closed end;
In electric power heating part, plexiglass sheet (9) is circular, and its center is processed with a through hole; Electric heating wire (8) is arranged on the upper surface of plexiglass (9); With glue, temperature detect switch (TDS) (10) is fixed in the center hole of plexiglass sheet (9), and in hole, is coated with heat conductive silica gel to equal with end face; Heat conducting film (7) is circular, is pasted onto on electric heating wire (8); Plexiglass sheet (9) is connected with upper plate (11) by screw (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410216612.4A CN103982502B (en) | 2014-05-21 | 2014-05-21 | A kind of strain gauge adhesion fixing device detected for rail stress |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410216612.4A CN103982502B (en) | 2014-05-21 | 2014-05-21 | A kind of strain gauge adhesion fixing device detected for rail stress |
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| CN103982502A CN103982502A (en) | 2014-08-13 |
| CN103982502B true CN103982502B (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3751248A1 (en) * | 2019-06-14 | 2020-12-16 | Thales Management & Services Deutschland GmbH | Rail monitoring element, method for mounting a rail monitoring element and method for producing a rail monitoring element |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405745B (en) * | 2014-10-23 | 2016-04-13 | 中国船舶重工集团公司第七○二研究所 | Foil gauge Rapid pasting solidification mechanical hook-up peculiar to vessel and using method thereof |
| CN105715645B (en) * | 2014-12-05 | 2017-12-22 | 天津航天瑞莱科技有限公司 | A kind of device that high-temperature laminating comprehensive function is provided |
| CN108120369A (en) * | 2016-11-28 | 2018-06-05 | 梅特勒-托利多(常州)精密仪器有限公司 | The method and device of fixed foil gauge |
| DE102017216811A1 (en) | 2017-09-22 | 2019-03-28 | Thales Management & Services Deutschland Gmbh | Method for mounting a rail monitoring element |
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| GB1317496A (en) * | 1970-02-04 | 1973-05-16 | Ind Onderneming Arma Nv | Railway switch or points heater |
| DE4207516A1 (en) * | 1992-03-10 | 1993-09-16 | Gerd R Dipl Ing Wetzler | METHOD FOR GENERATING LOAD-RELATED SWITCHING SIGNALS ON RAILWAY RAILWAYS |
| CN1619269A (en) * | 2003-11-18 | 2005-05-25 | 吴良善 | Railroad rail stress testing method |
| CN102313589A (en) * | 2010-07-01 | 2012-01-11 | 顾增华 | Attached steel rail wheel weight sensor |
| CN203532448U (en) * | 2013-10-21 | 2014-04-09 | 湖南大学 | Strain gage adhesion device of extra-large-measuring-range rolling force strain sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276513B2 (en) * | 1994-07-28 | 2002-04-22 | 三菱重工業株式会社 | Joining equipment |
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2014
- 2014-05-21 CN CN201410216612.4A patent/CN103982502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1317496A (en) * | 1970-02-04 | 1973-05-16 | Ind Onderneming Arma Nv | Railway switch or points heater |
| DE4207516A1 (en) * | 1992-03-10 | 1993-09-16 | Gerd R Dipl Ing Wetzler | METHOD FOR GENERATING LOAD-RELATED SWITCHING SIGNALS ON RAILWAY RAILWAYS |
| CN1619269A (en) * | 2003-11-18 | 2005-05-25 | 吴良善 | Railroad rail stress testing method |
| CN102313589A (en) * | 2010-07-01 | 2012-01-11 | 顾增华 | Attached steel rail wheel weight sensor |
| CN203532448U (en) * | 2013-10-21 | 2014-04-09 | 湖南大学 | Strain gage adhesion device of extra-large-measuring-range rolling force strain sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3751248A1 (en) * | 2019-06-14 | 2020-12-16 | Thales Management & Services Deutschland GmbH | Rail monitoring element, method for mounting a rail monitoring element and method for producing a rail monitoring element |
| WO2020249300A1 (en) * | 2019-06-14 | 2020-12-17 | Thales Management & Services Deutschland Gmbh | Rail monitoring element, method for mounting a rail monitoring element, and method for manufacturing a rail monitoring element |
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| CN103982502A (en) | 2014-08-13 |
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