CN206057262U - A kind of negative-pressure type acoustic emission sensor fixing device - Google Patents
A kind of negative-pressure type acoustic emission sensor fixing device Download PDFInfo
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- CN206057262U CN206057262U CN201620553726.2U CN201620553726U CN206057262U CN 206057262 U CN206057262 U CN 206057262U CN 201620553726 U CN201620553726 U CN 201620553726U CN 206057262 U CN206057262 U CN 206057262U
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Abstract
The utility model discloses a kind of negative-pressure type acoustic emission sensor fixing device, including fixed shell 1, piston 2, draw-in groove 3, pressure shield 4, entrance hole 5, sealing-plug 6, wherein described fixed shell 1 be stiff case, and inward at both ends extend, can be to the stroke limit of piston 2；Described piston 2 is in close contact with 1 inwall of fixed shell, and can be parallel to device axis slidably；Described draw-in groove 3 is fixed on piston 2, and in order that sensor is preferably embedded in draw-in groove 3, draw-in groove 3 is made up of elastomeric material；Pressure shield 4 is made up of elastomeric material, and the ability with bearing pressure and recovery deformation, its bottom margin are suitably expanded with test specimen contact area；Described entrance hole 5 is arranged at 1 side of fixed shell；Described sealing-plug 6 is made up of elastomeric material, is semi-closed structure.This utility model makes sensor be close to surface of test piece with suction function, and simple structure is easy to operate, is particularly suitable for carrying out the fixation of sensor during all kinds of square test specimen acoustic emission detection.
Description
Technical field
This utility model belongs to acoustic emission detection system design field, and in particular to a kind of negative-pressure type acoustic emission sensor is solid
Determine device, be particularly suitable for carrying out the fixation of sensor during all kinds of square test specimen acoustic emission detection.
Background technology
With the development of science and technology, acoustic emission testing technology is widely used in engineering with test.Carry out acoustic emission
During test, need for acoustic emission sensor to be fixed on surface of test piece, monitor acoustic emission signal.Acoustic emission sensor in laboratory
Traditional fixed form mainly include be mechanically fixed, being adhesively fixed.It is mechanically fixed by stationary fixture and fastening
Sensor is fixed on part surface by screw, and this mode is unfavorable for the acoustic emission inspection for carrying out the fragility test specimen such as rock and rocks
Survey：When fastening screw tension can affect fragility test specimen internal mechanism and meeting wear sensor, excessively pine, sensor and test specimen are contacted not
Closely, it is easy to fall off；Magnetic suck is fixed and fixes acoustic emission sensor by magnetic attraction, and this mode scope of application is narrow：It is appropriate only for
Steel test specimen, for rock and rocks test specimen are difficult to be suitable for.Be adhesively fixed is by smearing vaseline etc. in sensor surface
Sensor is fixed with test specimen by couplant using medical adhesive tape winding sensor, and it is complicated that this mode dismounts sensor, sensing
Device is easily slipped, and expends material and time.There is different degrees of defect in above tradition fixed form：Acoustic emission sensor and examination
Not closely, sensor is easily slipped for part contact.
Utility model content
To solve above-mentioned technical problem, this utility model provides a kind of negative-pressure type acoustic emission sensor fixing device, the dress
Simple structure is put, is easily operated, good fixing effect is particularly suitable for carrying out sensor during all kinds of square test specimen acoustic emission detection
It is fixed.
For achieving the above object, the utility model proposes technical scheme be：A kind of negative-pressure type acoustic emission sensor is fixed
Device, including fixed shell, piston, draw-in groove, pressure shield, entrance hole, sealing-plug.Wherein described fixed shell is rigid crust
Body, and inward at both ends extension, can be to the stroke limit of piston；Described piston is in close contact with fixed shell inwall, and energy
Parallel to device axis slidably；Described draw-in groove is fixed on piston, and in order that sensor is preferably embedded in draw-in groove, card
Groove is made up of elastomeric material；Pressure shield is made up of elastomeric material, the ability with bearing pressure and recovery deformation, its bottom margin
Suitably expand with test specimen contact area；Described entrance hole is arranged at fixed shell side；Described sealing-plug is by elastomeric material
Make, be semi-closed structure, arrange into wire casing and accommodate the circular cavity of holding wire thereon.
A kind of negative-pressure type acoustic emission sensor fixing device difference from prior art described in the utility model is：This
Utility model discharges wherein air by being pressed down against pressure shield, at this moment can produce pressure with outer surface of piston inside pressure shield
Power is poor, i.e., produce negative pressure inside pressure shield；When pressure shield is unclamped, which recovers to increase inside pressure shield and piston during deformation
The pressure differential of outer surface, piston will drive sensor to be close to surface of test piece under suction function in pressure shield.While in order to ensure
Sealing inside device is good, and pressure shield bottom margin can trowelling couplant.
Concrete beneficial effect of the present utility model is：
1. this utility model simple structure, easy to operate.During installation, the basic work such as holding wire connection and sensor installation is completed
After work, it is only necessary to squeeze pressure cover and then release, sensor automatic absorbing just can be made in surface of test piece；During dismounting, first squeeze pressure
Cover, just can remove this device.
2. sensor is rationally close to surface of test piece, effectively solving sensor and examination using negative pressure appearance by this utility model
The problem that part contact is not closely even slipped, is suitable for carrying out the fixation of sensor during all kinds of square test specimen acoustic emission detection.
Description of the drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is the left diagram of this utility model sealing-plug.
Fig. 3 is this utility model scheme of installation.
Marginal data：1- fixed shells, 2- pistons, 3- draw-in grooves, 4- pressure shields, 5- entrance holes, 6- sealing-plugs, 601- inlet wires
Groove, 602- circular cavities, 7- holding wires, 8- sensor wires hole, 9- sensors, 10- test specimens.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with the accompanying drawings to this reality
It is described in further details with new：
As shown in Figure 1, Figure 2, Fig. 3, a kind of shown, negative-pressure type acoustic emission sensor fixing device, including fixed shell 1, piston
2nd, draw-in groove 3, pressure shield 4, entrance hole 5, sealing-plug 6, enter wire casing 601, circular cavity 602.Wherein described fixed shell 1 is firm
Property housing, and inward at both ends extend, can be to the stroke limit of piston 2；Described piston 2 is closely connect with 1 inwall of fixed shell
Touch, and can be parallel to device axis slidably；Described draw-in groove 3 is fixed on piston 2, and in order that sensor 9 is more preferable
Embedded draw-in groove 3, draw-in groove 3 are made up of elastomeric material；Pressure shield 4 is made up of elastomeric material, is deformed with bearing pressure and recovery
Ability, its bottom margin are suitably expanded with 10 contact area of test specimen；Described entrance hole 5 is arranged at 1 side of fixed shell；It is described
Sealing-plug 6 be made up of elastomeric material, be semi-closed structure, arrange into wire casing 601 and accommodate the circular cavity of holding wire 7 thereon
602。
Should be by holding wire 7 by entering the embedded elasticity circular cavity 602 of wire casing 601 during use；Holding wire 7 and sensor are connect
String holes 8 is connected；Sensor 9 is embedded in into draw-in groove 3；Screwing hermetic plug 6, should reserve the holding wire 7 of suitable length inside attention device；
The couplants such as vaseline are smeared at 4 edge of pressure shield, then makes pressure shield 4 be close to 10 surface of test specimen, squeeze pressure cover 4 is discharged
Its inner air；Pressure shield 4 is unclamped gently, piston 2 drives draw-in groove 3 and sensor 9 under suction function inside fixed shell 1
Move downward, until sensor 9 contacts test specimen 10, at this moment as test specimen can apply opposite force to sensor, make sensor no longer
Move and be held against in surface of test piece.Wherein piston 2, pressure shield 4 and sealing-plug 6 combine coupling when holding wire 7 is accessed
Agent effect makes the favorable sealing property of this device, and negative pressure can be formed after air in discharge pressure cover 4, it is ensured that piston 2 can be
Under external and internal pressure difference effect, drive sensor 9 is close to 10 surface of test specimen.
Ultimate principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.This reality
Do not limited by specific embodiment with new, on the premise of without departing from this utility model spirit and scope, for this practicality
The new various changes and modifications made all should be fallen in the claimed scope of this utility model.
Claims (2)
1. a kind of negative-pressure type acoustic emission sensor fixing device, it is characterised in that：Including fixed shell (1), piston (2), draw-in groove
(3), pressure shield (4), entrance hole (5), sealing-plug (6), wherein described fixed shell (1) is stiff case, and inward at both ends
Extend, can be to the stroke limit of piston (2)；Described piston (2) is in close contact with fixed shell (1) inwall, and can be parallel
In device axis slidably；Described draw-in groove (3) is fixed on piston (2), and in order that sensor is preferably embedded in draw-in groove
(3), draw-in groove (3) is made up of elastomeric material；Pressure shield (4) is made up of elastomeric material, the energy with bearing pressure and recovery deformation
Power, its bottom margin are suitably expanded with test specimen contact area；Described entrance hole (5) is arranged at fixed shell (1) side；It is described
Sealing-plug (6) be made up of elastomeric material, be semi-closed structure, arrange thereon into wire casing (601) and accommodate holding wire (7) circle
Shape cavity (602).
2. a kind of negative-pressure type acoustic emission sensor fixing device according to claim 1, it is characterised in that：Described piston
(2), pressure shield (4) and sealing-plug (6) make the sealing property of this device good with reference to couplant effect when holding wire (7) are accessed
It is good, negative pressure can be formed after the interior air of discharge pressure cover (4), it is ensured that piston (2) can drive under external and internal pressure difference effect and pass
Sensor (9) is close to test specimen (10) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553726.2U CN206057262U (en) | 2016-06-01 | 2016-06-01 | A kind of negative-pressure type acoustic emission sensor fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553726.2U CN206057262U (en) | 2016-06-01 | 2016-06-01 | A kind of negative-pressure type acoustic emission sensor fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206057262U true CN206057262U (en) | 2017-03-29 |
Family
ID=58372594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620553726.2U Expired - Fee Related CN206057262U (en) | 2016-06-01 | 2016-06-01 | A kind of negative-pressure type acoustic emission sensor fixing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206057262U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239194A (en) * | 2018-11-17 | 2019-01-18 | 镇江华飞检测技术有限公司 | A kind of boiler tubing ultrasonic detection device |
| CN110018244A (en) * | 2019-05-16 | 2019-07-16 | 石家庄铁道大学 | Multi-purpose acoustic emission probe and its application method |
| CN110609090A (en) * | 2019-08-15 | 2019-12-24 | 铜陵有色金属集团股份有限公司 | Acoustic emission probe fixing device and using method thereof |
| CN112504871A (en) * | 2020-11-18 | 2021-03-16 | 贵州大学 | Shearing box for rock sample shearing and acoustic emission measurement at different temperatures |
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN114371219A (en) * | 2021-12-27 | 2022-04-19 | 桂林理工大学 | Adapter of replaceable irregular surface acoustic emission sensor |
-
2016
- 2016-06-01 CN CN201620553726.2U patent/CN206057262U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239194A (en) * | 2018-11-17 | 2019-01-18 | 镇江华飞检测技术有限公司 | A kind of boiler tubing ultrasonic detection device |
| CN110018244A (en) * | 2019-05-16 | 2019-07-16 | 石家庄铁道大学 | Multi-purpose acoustic emission probe and its application method |
| CN110018244B (en) * | 2019-05-16 | 2024-02-13 | 石家庄铁道大学 | Multipurpose acoustic emission probe and using method thereof |
| CN110609090A (en) * | 2019-08-15 | 2019-12-24 | 铜陵有色金属集团股份有限公司 | Acoustic emission probe fixing device and using method thereof |
| CN112504871A (en) * | 2020-11-18 | 2021-03-16 | 贵州大学 | Shearing box for rock sample shearing and acoustic emission measurement at different temperatures |
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN112578026B (en) * | 2020-12-10 | 2023-10-20 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN114371219A (en) * | 2021-12-27 | 2022-04-19 | 桂林理工大学 | Adapter of replaceable irregular surface acoustic emission sensor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20180601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |