CN210833447U - Fiber grating surface strain gauge - Google Patents
Fiber grating surface strain gauge Download PDFInfo
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- CN210833447U CN210833447U CN201922214913.4U CN201922214913U CN210833447U CN 210833447 U CN210833447 U CN 210833447U CN 201922214913 U CN201922214913 U CN 201922214913U CN 210833447 U CN210833447 U CN 210833447U
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Abstract
The utility model discloses a fiber grating surface strain gauge, including the strainotube, the equal spiro union in both ends of strainotube has signal joint, one side inner wall of strainotube has the motor through the bolt fastening, the both sides inner wall of strainotube has the baffle through the bolt fastening, one side outer wall of baffle and one side inner wall of strainotube are fixed with same screw rod through the bearing, and the output shaft of motor passes through the coupling joint on the screw rod, the outer wall spiro union of screw rod has temperature measurement mechanism, the both sides inner wall of strainotube all has the track through the bolt fastening, and temperature measurement mechanism sliding connection is on two orbital both sides inner walls, two orbital both ends are all through the bolt fastening limit switch. The utility model discloses a motor drives the screw rod and rotates and drive temperature measurement mechanism and remove, and the temperature of gathering the air through the temperature sensor in the temperature measurement mechanism has again been solved current surface strain meter function singleness and has not possessed the problem of temperature measurement function.
Description
Technical Field
The utility model relates to a fiber grating technical field especially relates to a fiber grating surface strain meter.
Background
The surface (strain) meter is suitable for being arranged on the surface of a hydraulic structure or other structures for a long time, measuring the strain quantity of the surface of the structure and synchronously measuring the temperature of the arrangement point. The vibrating wire type surface (strain) gauge has small elastic modulus and good follow-up property with a measured structure, does not interfere with an original stress field in measurement, and can be recycled.
The steel surface strain sensor is a high-precision fiber grating strain sensor with low temperature sensitivity, the temperature coefficient of the fiber grating strain sensor is lower than that of other types of strain gauges by more than 50%, the existing steel surface strain gauge has single function and does not have the function of detecting temperature, and the steel surface strain gauge is sensitive to temperature.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the fiber grating surface strain gauge that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fiber grating surface strain gauge, includes the strain tube, the equal spiro union in both ends of strain tube has signal joint, one side inner wall of strain tube has the motor through the bolt fastening, the both sides inner wall of strain tube has the baffle through the bolt fastening, one side outer wall of baffle and one side inner wall of strain tube are fixed with same screw rod through the bearing, and the output shaft of motor passes through the coupling joint on the screw rod, the outer wall spiro union of screw rod has temperature measurement mechanism, the both sides inner wall of strain tube all has the track through the bolt fastening, and temperature measurement mechanism sliding connection is on two orbital both sides inner walls, two orbital both ends are all through the bolt fastening limit switch.
Preferably, the temperature measuring mechanism comprises a temperature measuring box, and fixing plates are fixed on the outer walls of the two sides of the temperature measuring box through bolts.
Preferably, the outer walls of the two sides of the two fixing plates are both fixed with rollers through bolts.
Preferably, the inner walls of the two sides of the temperature measuring box are fixedly provided with temperature sensors through bolts, and the temperature sensors are connected with a controller through signal lines.
Preferably, round openings are formed in the outer walls of the two sides of the temperature measuring box, and dust screens are fixed to the inner walls of the two sides of the two round openings through bolts.
Preferably, the inner walls of the two sides of the temperature measuring box are fixedly provided with the same fan through bolts, the two ends of the outer wall of the strain tube are provided with mounting grooves, and the two ends of the outer wall of the strain tube are provided with air holes.
Preferably, the motor is connected with a switch through a wire, and the switch is connected with the controller through a wire.
The utility model has the advantages that:
this fiber grating surface strain meter through set up temperature measurement mechanism in the strainotube, drives the screw rod through the motor and rotates and drive temperature measurement mechanism and remove, gathers the temperature of air through the temperature sensor in the temperature measurement mechanism again, drives the temperature measurement mechanism through the screw rod and removes and the setting up of fan makes things convenient for help temperature sensor to carry out initiative collection temperature, has solved the problem that current surface strain meter function singleness does not possess the temperature measurement function.
Drawings
Fig. 1 is a schematic structural view of a fiber grating surface strain gauge according to the present invention;
fig. 2 is a schematic cross-sectional structural view of a fiber grating surface strain gauge according to the present invention;
fig. 3 is a schematic structural view of a temperature measuring mechanism of the fiber grating surface strain gauge according to the present invention.
In the figure: the device comprises a strain tube 1, a signal connector 2, a mounting groove 3, an air hole 4, a motor 5, a partition plate 6, a track 7, a screw rod 8, a temperature measuring mechanism 9, a limit switch 10, a temperature measuring box 11, a roller 12, a temperature sensor 13, a dust cover 14 and a fan 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a fiber bragg grating surface strain gauge comprises a strain tube 1, signal connectors 2 are respectively screwed at two ends of the strain tube 1, a motor 5 is fixed on one inner wall of the strain tube 1 through a bolt, partition plates 6 are fixed on two inner walls of the strain tube 1 through bolts, the same screw 8 is fixed on one outer wall of each partition plate 6 and one inner wall of the strain tube 1 through a bearing, an output shaft of the motor 5 is connected on the screw 8 through a coupler, a temperature measuring mechanism 9 is screwed on the outer wall of the screw 8, tracks 7 are respectively fixed on two inner walls of the strain tube 1 through bolts, the temperature measuring mechanism 9 is connected on two inner walls of two tracks 7 in a sliding manner, limit switches 10 are respectively fixed at two ends of the two tracks 7 through bolts, the temperature measuring mechanism 9 comprises a temperature measuring box 11, fixed plates are respectively fixed on two outer walls of the temperature measuring box 11 through bolts, and rollers 12 are respectively fixed on two outer walls of, temperature measuring box 11's both sides inner wall has temperature sensor 13 through the bolt fastening, and temperature sensor 13 is connected with the controller through the signal line, the round mouth has all been seted up to temperature measuring box 11's both sides outer wall, and the both sides inner wall of two round mouths all has dust screen 14 through the bolt fastening, temperature measuring box 11's both sides inner wall has same fan 15 through the bolt fastening, mounting groove 3 has all been seted up at the both ends of 1 outer wall of strainotube, and the both ends of 1 outer wall of strainotube have all seted up gas pocket 4, motor 5 is connected with the switch through the wire, and the switch is connected with the controller through the wire.
The working principle is as follows: during the temperature measurement, thereby drive screw rod 8 through motor 5 and rotate drive temperature measurement mechanism 9 and remove in the pipe 1 that meets an emergency, through the convenient stroke of controlling temperature measurement mechanism 9 that sets up of limit switch 10, the removal that drives temperature sensor 13 through the removal of temperature measurement mechanism 9 is convenient for gather the temperature of different positions in the pipe 1 that meets an emergency, avoid the too high collection that influences the temperature of local temperature, the air that is convenient for drive through setting up of fan 15 in the temperature measurement case 11 flows, and then overhauls the error of temperature measurement.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A fiber bragg grating surface strain gauge comprises a strain tube (1) and is characterized in that, both ends of the strain tube (1) are respectively screwed with a signal joint (2), the inner wall of one side of the strain tube (1) is fixed with a motor (5) through a bolt, the inner walls of two sides of the strain tube (1) are fixed with a clapboard (6) through bolts, the outer wall of one side of the clapboard (6) and the inner wall of one side of the strain tube (1) are fixed with the same screw rod (8) through a bearing, and the output shaft of the motor (5) is connected with the screw rod (8) through a coupling, the outer wall of the screw rod (8) is in threaded connection with a temperature measuring mechanism (9), the inner walls of the two sides of the strain tube (1) are both fixed with tracks (7) through bolts, and the temperature measuring mechanism (9) is connected on the inner walls of the two sides of the two rails (7) in a sliding manner, and two ends of the two rails (7) are both fixed with limit switches (10) through bolts.
2. The fiber bragg grating surface strain gauge according to claim 1, wherein the temperature measuring mechanism (9) comprises a temperature measuring box (11), and fixing plates are fixed on the outer walls of two sides of the temperature measuring box (11) through bolts.
3. The fiber grating surface strain gauge according to claim 2, wherein the rollers (12) are fixed on the outer walls of the two sides of the two fixing plates through bolts.
4. The fiber bragg grating surface strain gauge according to claim 3, wherein the temperature sensors (13) are fixed on the inner walls of the two sides of the temperature measuring box (11) through bolts, and the temperature sensors (13) are connected with a controller through signal lines.
5. The FBG (fiber bragg grating) surface strain gauge according to claim 4, wherein round openings are formed in the outer walls of two sides of the temperature measuring box (11), and dust screens (14) are fixed to the inner walls of two sides of each round opening through bolts.
6. The FBG (fiber bragg grating) surface strain gauge according to claim 5, wherein the same fan (15) is fixed on the inner walls of two sides of the temperature measuring box (11) through bolts, the two ends of the outer wall of the strain tube (1) are provided with mounting grooves (3), and the two ends of the outer wall of the strain tube (1) are provided with air holes (4).
7. The fiber grating surface strain gauge according to claim 1, wherein the motor (5) is connected with a switch through a wire, and the switch is connected with a controller through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214913.4U CN210833447U (en) | 2019-12-12 | 2019-12-12 | Fiber grating surface strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922214913.4U CN210833447U (en) | 2019-12-12 | 2019-12-12 | Fiber grating surface strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210833447U true CN210833447U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922214913.4U Active CN210833447U (en) | 2019-12-12 | 2019-12-12 | Fiber grating surface strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210833447U (en) |
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2019
- 2019-12-12 CN CN201922214913.4U patent/CN210833447U/en active Active
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