CN206740708U - One kind is used for laboratory test acoustic emission sensor erecting device - Google Patents
One kind is used for laboratory test acoustic emission sensor erecting device Download PDFInfo
- Publication number
- CN206740708U CN206740708U CN201720305895.9U CN201720305895U CN206740708U CN 206740708 U CN206740708 U CN 206740708U CN 201720305895 U CN201720305895 U CN 201720305895U CN 206740708 U CN206740708 U CN 206740708U
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- CN
- China
- Prior art keywords
- acoustic emission
- footmuff
- gag lever
- top cover
- emission sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses one kind to be used for laboratory test surface of test piece acoustic emission sensor erecting device, including spring, top cover, gag lever post and footmuff；Footmuff is four identical elements containing arc surface, and top cover is provided with tension adjusting screw, and gag lever post is used to limit sensing station.The utility model device solves the problems such as current acoustic emission sensor is easily peeled off in surface of test piece, shielded area is not easy greatly observation and the way of contact is easily failed by way of footmuff is bonded in into surface of test piece.Can meet that the needs of acoustic emission monitor(ing) sensor is fixed is repeated in laboratory.
Description
Technical field
It the utility model is related to and a kind of acoustic emission probe is fixed on rock and class rock surface of test piece for laboratory test
Device.
Background technology
More or less there are grown-in defects in the inside of solid material such as rock, internal flaw activates under external force, causes
Damage and failure, strain energy, and the fast propagation in the solid materials such as rock mass are discharged during damage and failure in the form of elastic wave,
Produce acoustic emission phenomenon.Characteristics of Acoustic Emission parameter contains the precursor information of abundant damage Progressive failure.Ground by sound emission
Damage of rock evolution Feature is studied carefully, for profound understanding rock rupture mechanism, prevention disaster accident caused by rock rupture unstability
With great importance.To study the generation in crack and Evolution, the high performance video capture device of generally use or adopt
Surface of test piece is shot with numerical value Speckle Method, recorded, then the displacement to rock sample surface, deformation and rock split
The Evolution of line is analyzed, meanwhile, the generation of rock interior crack, Evolution are detected by acoustic emission device.Traditional
Acoustic emission sensor mounting means blocks that comparison is more to surface of test piece, and easily produces loosening with the deformation of rock so that sound
Emitter-detector, because test piece deformation departs from rock sample surface, can not be the effective time of contact surface of probe in loading procedure.
The content of the invention
The purpose of this utility model is to overcome deficiency of the prior art, there is provided one kind can make acoustic emission probe effectively viscous
Paste surface of test piece, effectively attachment pressure, and less experimental rig is blocked to surface of test piece is provided.
The technical solution of the utility model is：
Fixing device includes spring, top cover, gag lever post and footmuff, and described footmuff is arranged at the lower end of spring, four
It is 1/4 arc surface footmuff on the inside of identical, collectively forms the square retainer plate of the cavity containing circular arc；Setting is crossed logical in the middle part of footmuff
Hole, and connect four through holes using latex cushion rubber.
Device top is the upper end that top cover is connected to spring, and the top cover point is internal to be provided with centre bore, and closure body is a circle
Ring, annulus lower section have been evenly arranged 4 gag lever posts, the inscribed circle and acoustic emission probe diameter phase that gag lever post present position is formed
Together, screw thread is provided with the inside of annulus, inside is tension adjusting screw.
The utility model has the advantage of, device can realize effective bonding of acoustic emission detection device, and during experiment
Constant pressure of popping one's head in is supplied to, meanwhile, the device is smaller to the shielded area on rock sample surface, is advantageous to other observation sides
Formula uses.
Brief description of the drawings
Illustrate implementation of the present utility model below in conjunction with the accompanying drawings.
Fig. 1 is the utility model apparatus structure schematic diagram.
Marginal data：
1- tension adjusting screws；2- top covers；3- acoustic emission sensors；4- gag lever posts；5- springs；6- footmuffs；7 latex cushion rubbers
Embodiment：
The first step：Prepare acoustic emission sensor erecting device
One kind of the present utility model is used for laboratory test acoustic emission sensor erecting device as illustrated, including spring 5, top
Lid 2 and footmuff 6, described footmuff 6 are arranged at the lower end of spring 5, and described footmuff is four identical elements, element surface
For 1/4 arc surface, the square retainer plate of the cavity containing circular arc is collectively formed, middle part is provided with through hole and crosses footmuff 6, and uses glue
Latex circle 7 connects four through holes；Device top is the upper end that top cover 2 is connected to spring 5, and top cover 2 divides inside to be provided with centre bore, pushes up
The main body of lid 2 is an annulus, and 4 gag lever posts 4 have been evenly arranged below annulus, and screw thread is provided with the inside of annulus, and inside is adjusted for pressure
Save screw 1.
Second step：Acoustic emission probe installation site is determined according to testing program, footmuff 6 is pasted on surface of test piece；Wait to glue
Patch is firm, is put into popping one's head in the installing space that footmuff 6 forms with gag lever post 4；Rotational pressure adjusting screw 1, probe is compressed.
3rd step：Connecting acoustic emission equipment, disconnected lead test is carried out, according to result of the test, rotational pressure adjusting screw 1 is adjusted
Probe compression degree.
4th：Off-test, loose tension adjusting screw 1 is adjusted, probe is taken out；Footmuff 6 is separated with test specimen, under footmuff
Surface rubbing.
Claims (2)
1. a kind of acoustic emission sensor fixing device for laboratory test, it is characterised in that fixing device includes spring, top
Lid, gag lever post and footmuff；Described footmuff is arranged at the lower end of spring, is 1/4 arc surface footmuff on the inside of four identicals, altogether
With the square retainer plate for forming the cavity containing circular arc；It is provided with the middle part of footmuff and crosses through hole, and four is connected using latex cushion rubber
Through hole.
2. it is used for the acoustic emission sensor fixing device of laboratory test as claimed in claim 1, it is characterised in that device top
For top cover, the upper end of spring is connected to；The top cover point is internal to be provided with centre bore, and closure body is an annulus, and annulus lower section is uniformly
4 gag lever posts are disposed with, the inscribed circle that gag lever post present position is formed is identical with acoustic emission probe diameter；Set on the inside of top cover annulus
Screw thread is equipped with, inside is tension adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305895.9U CN206740708U (en) | 2017-03-28 | 2017-03-28 | One kind is used for laboratory test acoustic emission sensor erecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305895.9U CN206740708U (en) | 2017-03-28 | 2017-03-28 | One kind is used for laboratory test acoustic emission sensor erecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206740708U true CN206740708U (en) | 2017-12-12 |
Family
ID=60558844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720305895.9U Expired - Fee Related CN206740708U (en) | 2017-03-28 | 2017-03-28 | One kind is used for laboratory test acoustic emission sensor erecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206740708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824019A (en) * | 2019-11-11 | 2020-02-21 | 长沙理工大学 | Adhesion type acoustic emission probe clamp |
-
2017
- 2017-03-28 CN CN201720305895.9U patent/CN206740708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824019A (en) * | 2019-11-11 | 2020-02-21 | 长沙理工大学 | Adhesion type acoustic emission probe clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |