CN108445085A - A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment - Google Patents
A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment Download PDFInfo
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- CN108445085A CN108445085A CN201810576979.5A CN201810576979A CN108445085A CN 108445085 A CN108445085 A CN 108445085A CN 201810576979 A CN201810576979 A CN 201810576979A CN 108445085 A CN108445085 A CN 108445085A
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- probe
- acoustic emission
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- dial plate
- vernier
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the acoustic emission probe accurate-location device and application method of a kind of experiment of Rock Under Uniaxial Compression, which includes the circular scale dial plate with location hole and ring slider track, vernier with threaded hole and fixed screw, the probe containing cap with screw rod and scale bar；Vernier determines orientation according to circular scale dial plate；Circular scale dial plate is connected using scale bar with location hole；Scale bar plays the role of connection and determines scale dial plate position；Screw rod is directed toward one end connection probe on the inside of circular scale dial plate and contains cap, is fixed acoustic emission probe using spring (screw)；In installation process, the frictional force between adjustment screw increase probe and rock sample will be popped one's head in using frictional force and positioning device is mounted on rock sample surface.The present apparatus can flexibly and easily carry out the rock sample of different shape and size acoustic emission probe positioning and fixation, while realizing and probe number and installation position may be selected, the effective time and efforts for saving researcher.
Description
Technical field
The present invention relates to acoustic emission probe positioning device, especially it is a kind of it is adjustable, easy to install and use, be manufactured into
This acoustic emission probe positioning device not high, for Rock Under Uniaxial Compression compression experiment.
Background technology
As Mineral Resources in China is increasingly rare, more and more mines are transferred to deep underground mining.Deep mining to
While we bring resource, many problems also are brought to us, researcher is needed to further appreciate that the compression of rock is broken
Bad mechanical characteristic and Cracks Evolution feature.
In rock type materials destructive process, material internal damage gradually accumulate, along with elastic-plastic deformation, crack initiation and
Phenomena such as extension, these energy release process generate high-frequency acoustic emission signal, therefore acoustic emission monitor(ing) carries for researcher
An approach for understanding rock interior damage is supplied.
Core component of the acoustic emission probe as acoustic emission monitor(ing), very sensitive to the interference signal of environment, sound emission is visited
Head bottom needs and measurand is in direct contact, and needs when measurement to be reliably fixed in measurand.
In order to which the mechanical characteristic of study of rocks class material compression failure and Cracks Evolution feature, researcher need to rock
Test specimen carries out acoustic emission monitor(ing).Acoustic emission probe is reliably fixed on rock sample be uniaxial compression acoustic emission experiment pass
Key.In an experiment, acoustic emission probe is generally fixed on rock sample surface by researcher using existing positioning device, but existing
These capable devices can not adjust mostly, cannot be satisfied the needs of researcher sometimes；Some researchers utilize glue
Acoustic emission probe is fixed on rock sample surface by water, adhesive tape, but time-consuming and laborious in this way, and influences the signal results of acquisition
Accuracy, it could even be possible to occur probe loosen fall cause on the ground probe break, cause unnecessary economic loss.Therefore
It is necessary to provide it is a kind of flexibly, conveniently, reliable probe locating device.
Invention content
It is an object of the invention to provide a kind of adjustable acoustic emission probe positioning devices, are compressed in Rock Under Uniaxial Compression
In acoustic emission experiment, researcher can need to select acoustic emission probe number according to experiment and determine the side of acoustic emission probe
Position, the time and efforts of effectively save researcher improve the accuracy of experimental data.
Specific technical solution is：
A kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment, includes with location hole and ring slider track
Circular scale dial plate, vernier with threaded hole and fixed screw, the probe with screw rod contain cap and scale bar；Scale bar passes through
Location hole on circular scale dial plate, for determining position of the circular scale dial plate relative to rock axial direction；Ring slider track
Positioned at the inside of circular scale dial plate, multiple verniers are installed according to demand thereon；The lower part of vernier is used for equipped with fixed screw will
It is fixed on ring slider track, and a threaded hole is set among the top of vernier and is coordinated with screw rod, screw rod is directed toward circular scale
One end gland of the inside of dial plate contains the axis collinear of cap and the axis and screw rod of probe containing cap；The probe contains
Cap includes a decompression spring and two retaining springs, and decompression spring one end is fixed on probe and contains on cap, and the other end is sent out with sound
It penetrates probe to be in direct contact, and is depressured the axis collinear of the axis and screw rod of spring；Described two retaining springs are distributed in probe packet
Hold cap radially, one end is fixedly connected with probe and contains cap, and the other end connects arc-shaped thin plate, thin plate and acoustic emission probe
Side contacts, and retaining spring is in compressive state after acoustic emission probe is inserted into.
Further, the retaining spring that above-mentioned probe contains in cap is substituted by set screw.
Further, above-mentioned circular scale dial plate degree of being accurate to is evenly distributed with more than four location holes thereon.
Further, more than two circular scale dial plates are coordinated by location hole and scale bar, are disposed in parallel relation to one another.
Other than springs, remaining is aluminum alloy material to each component stated.
The application method of the acoustic emission probe accurate-location device of above-mentioned Rock Under Uniaxial Compression experiment, includes the following steps：
Step 1, according to experiment needs, selection needs the quantity of acoustic emission probe to be mounted and the orientation of installation；
Probe with screw rod is first contained cap and is mounted on vernier using threaded hole by step 2；
Step 3 positions vernier using circular scale dial plate according to experiment needs, then utilizes fixed screw will
Vernier is fixed；
Acoustic emission probe is mounted on probe and contained in cap by step 4, while in the upper daubing coupling agent of probe；
Positioning device is sleeved on together with probe on rock sample, again adjustment screw, profit by step 5, adjustment screw
With the frictional force between rock sample and acoustic emission probe, first circular scale dial plate is fixed on to the appropriate position of rock sample
It sets；
Step 6, repeat step 1 to step 5, remaining graduated collar is sleeved on rock sample, using scale bar with
Location hole connects different circular scale dial plates, while determining that its position, same adjustment screw are consolidated using scale bar
It is scheduled on rock sample.
Beneficial effects of the present invention are：The acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment with circular orbit and
The scale dial plate of location hole is convenient for positioning acoustic emission probe；Demountable vernier increases the flexibility of the device,
Allow researcher that can select arbitrary acoustic emission probe；Location hole and scale bar match, and researcher can select to pacify
Multiple circular scale dial plates are filled, and can determine the distance between each circular scale dial plate；Screw rod and vernier cooperate, can be with
The acoustic emission probe of different rock samples is fixed in completion, such as cuboid rock sample, can select four verniers, and every two
A vernier is separated by 90 degree, is then fixed acoustic emission probe using rotary screw；It is that screw rod sends out sound in order to prevent to be depressured spring
It penetrates probe and presses too tight, damaged by pressure, while in rock loading procedure, absorb radial deformation caused by rock sample；It is fixed
The elasticity of position spring wants moderate, while blocking acoustic emission probe, can't be damaged by pressure；Whole device using probe with
Being frictionally held on test specimen between test specimen.With structure flexible adjustment, application method is easy to operate, the research of effective satisfaction
Personnel's experiment demand and other effects.
Description of the drawings
Fig. 1 is the installation site relation schematic diagram of the present invention；
Fig. 2 is the scale dial plate vertical view of the present invention；
Fig. 3 is the scale dial plate side view of the present invention；
Fig. 4 is that the probe with screw rod of the present invention contains cap (spring) schematic diagram；
Fig. 5 is that the probe of the present invention contains cap (spring) side view；
Fig. 6 is that the probe with screw rod of the present invention contains cap (screw) schematic diagram；
Fig. 7 is that the probe of the present invention contains cap (screw) side view；
Fig. 8 is the stereoscopic schematic diagram of the present invention；
In figure：1 circular scale dial plate；2 ring slider tracks；3 verniers；4 fixed screws；5 threaded holes；6 screw rods；7 probes
Contain cap；8 decompression springs；9 retaining springs (set screw)；10 acoustic emission probes；11 rock samples；12 acoustic emission probes draw
Line；13 scale bars；14 location holes.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
Embodiment 1：As shown in Figs. 1-5, a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment, feature exist
In, including：Circular scale dial plate 1, ring slider track 2, vernier 3, the probe with screw rod 6 contain cap 7.
The circular scale dial plate 1, unit degree of being accurate to have annular thereon for being positioned to acoustic emission probe
Vernier track 2.
The ring slider track 2 is located at 1 inside of circular scale dial plate, goes up there are four the vernier 3 for being separated by 90 degree,
Vernier 3 is fixed on using fixed screw 4 on vernier track 2.
The vernier 3 is connected with the probe with screw rod 6 and contains cap 7, probe contain cap 7 using screw rod 6 and threaded hole 5 with
Vernier 3 links together, and probe contains the inside that cap 7 is directed toward circular scale dial plate.
The probe is contained cap 7 and acoustic emission probe is fixed up using retaining spring 9, one end top of decompression spring 8
Acoustic emission probe.
In use, its specific steps includes：
Step 1, according to experiment needs, selection needs the quantity of acoustic emission probe to be mounted and the orientation of installation；
Step 2 first will be contained cap 7 with the probe of screw rod 6 and is mounted on vernier 3 using threaded hole 5；
Step 3 positions vernier 3 using circular scale dial plate 1 according to experiment needs, then utilizes fixed screw
4 fix vernier 3；
Acoustic emission probe 10 is mounted on probe and contained in cap 7 by step 4, while the daubing coupling agent on probe 10；
Positioning device is sleeved on together with probe 10 on rock sample 11, adjusts spiral shell again by step 5, adjustment screw 6
Circular scale dial plate is fixed on the suitable of rock sample by bar 6 using the frictional force between rock sample 11 and acoustic emission probe 10
When on position.
Embodiment 2：A kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment, including circular scale dial plate 1, ring
Shape vernier track 2, vernier 3, the probe with screw rod 6 contain cap 7, scale bar 13, location hole 14.
The circular scale dial plate 1, degree of being accurate to includes four location holes 14 thereon, and scale bar 13 utilizes location hole
14 connect two circular scale dial plates, and researcher can determine the position of two scale dial plates using scale bar 13
It sets.
The ring slider track 2, fixes three verniers for being separated by 120 degree 3 thereon, and vernier 3 is solid using fixed screw 4
It is scheduled on vernier track.
The vernier 3 is connected with the probe with screw rod 6 and contains cap 7, probe contain cap 7 using screw rod 6 and threaded hole 5 with
Vernier 3 links together, and probe contains the inside that cap 7 is directed toward circular scale dial plate.
The probe is contained cap 7 and acoustic emission probe 10 is fixed up using set screw 9, and one end of spring 8 is depressured
Head on acoustic emission probe 10.
In use, its specific steps includes：
Step 1, according to experiment needs, selection needs the quantity of acoustic emission probe to be mounted and the orientation of installation；
Step 2 first will be contained cap 7 with the probe of screw rod 6 and is mounted on vernier 3 using threaded hole 5；
Step 3 positions vernier 3 using circular scale dial plate 1 according to experiment needs, then utilizes fixed screw
4 fix vernier 3；
Acoustic emission probe 10 is mounted on probe and contained in cap 7 by step 4, while the daubing coupling agent on probe 10；
Positioning device is sleeved on together with probe 10 on rock sample 11, adjusts spiral shell again by step 5, adjustment screw 6
First circular scale dial plate 1 is fixed on rock by bar 6 using the frictional force between rock sample 11 and acoustic emission probe 10
On the appropriate location of test specimen 11；
Step 6 repeats step 1 to step 5, another graduated collar 1 is sleeved on rock sample 10, quarter is utilized
Bar 13 and location hole 14 are spent, two circular scale dial plates 1 are connected, while its position is determined using scale bar 13, equally
, adjustment screw 6 is fixed on rock sample 11.
The specific implementation mode of the present invention is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula can also be done under the premise of not departing from this patent objective within the knowledge of a person skilled in the art
Go out various change.
Claims (6)
1. a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment, which is characterized in that including band location hole and annular
The circular scale dial plate of vernier track, vernier with threaded hole and fixed screw, the probe with screw rod contain cap and scale bar；
Scale bar passes through the location hole on circular scale dial plate, for determining position of the circular scale dial plate relative to rock axial direction；Ring
Shape vernier track is located at the inside of circular scale dial plate, installs multiple verniers according to demand thereon；The lower part of vernier, which is equipped with, to be fixed
Screw sets a threaded hole and coordinates with screw rod, screw rod refers to for being fixed in ring slider track among the top of vernier
Contain the axis collinear of the axis and screw rod of cap and probe containing cap to one end gland on the inside of circular scale dial plate；Described
It includes a decompression spring and two retaining springs that probe, which contains cap, and decompression spring one end is fixed on probe and contains on cap, another
End is in direct contact with acoustic emission probe, and is depressured the axis collinear of the axis and screw rod of spring；Described two retaining spring distributions
Contain cap radially in probe, one end is fixedly connected with probe and contains cap, and the other end connects arc-shaped thin plate, and thin plate is sent out with sound
The side contact of probe is penetrated, retaining spring is in compressive state after acoustic emission probe is inserted into.
2. a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment according to claim 1, which is characterized in that
The retaining spring that probe contains in cap is substituted by set screw.
3. a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment according to claim 1 or 2, feature exist
In circular scale dial plate degree of being accurate to is evenly distributed with more than four location holes thereon.
4. a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment according to claim 1 or 2, feature exist
In more than two circular scale dial plates are coordinated by location hole and scale bar, are disposed in parallel relation to one another.
5. a kind of acoustic emission probe accurate-location device of Rock Under Uniaxial Compression experiment according to claim 3, which is characterized in that
More than two circular scale dial plates are coordinated by location hole and scale bar, are disposed in parallel relation to one another.
6. the acoustic emission probe accurate-location device application method of any Rock Under Uniaxial Compression experiments of claim 1-5, special
Sign is, includes the following steps：
Step 1, according to experiment needs, selection needs the quantity of acoustic emission probe to be mounted and the orientation of installation；
Probe with screw rod is first contained cap and is mounted on vernier using threaded hole by step 2；
Step 3 positions vernier using circular scale dial plate according to experiment needs, then utilizes fixed screw by vernier
It is fixed；
Acoustic emission probe is mounted on probe and contained in cap by step 4, while in the upper daubing coupling agent of probe；
Positioning device is sleeved on together with probe on rock sample by step 5, adjustment screw, and adjustment screw, utilizes rock again
First circular scale dial plate is fixed on the appropriate location of rock sample by the frictional force between stone test specimen and acoustic emission probe
On；
Step 6 repeats step 1 to step 5, remaining graduated collar is sleeved on rock sample, scale bar and positioning are utilized
Hole connects different circular scale dial plates, while determining that its position, same adjustment screw are fixed in using scale bar
On rock sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576979.5A CN108445085A (en) | 2018-06-04 | 2018-06-04 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576979.5A CN108445085A (en) | 2018-06-04 | 2018-06-04 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
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| CN108445085A true CN108445085A (en) | 2018-08-24 |
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| CN201810576979.5A Pending CN108445085A (en) | 2018-06-04 | 2018-06-04 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115888A (en) * | 2018-09-03 | 2019-01-01 | 太原理工大学 | A kind of selection method of acoustic emission probe type |
| CN110243947A (en) * | 2019-06-18 | 2019-09-17 | 昆明理工大学 | A kind of fixed device of disk diametral compression test three-dimensional acoustic emission sensor array arrangement and array arrangement fixing means |
| CN110632183A (en) * | 2019-10-22 | 2019-12-31 | 太原理工大学 | Fixing device and method for acoustic emission probe or ultrasonic probe |
| CN110632182A (en) * | 2019-10-22 | 2019-12-31 | 太原理工大学 | Device and method for fixing acoustic emission probe or ultrasonic probe |
| CN111075434A (en) * | 2019-11-29 | 2020-04-28 | 中国石油天然气集团有限公司 | Portable sound source device for acoustic logging instrument array receiving sound system field detection and using method thereof |
| WO2020048188A3 (en) * | 2019-06-19 | 2020-05-07 | 四川大学 | Acoustic emission probe positioning system, test block for system, and application of system |
| CN111413198A (en) * | 2020-04-03 | 2020-07-14 | 重庆交通大学 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
| CN114235968A (en) * | 2022-02-28 | 2022-03-25 | 中国科学院地质与地球物理研究所 | Acoustic emission probe fixing device, acoustic emission probe fixing assembly and acoustic emission probe fixing method |
| US11415557B2 (en) * | 2018-11-29 | 2022-08-16 | Sichuan University | Tempo-spatial evolution test system for rock breaking in deep and complex environment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109115888A (en) * | 2018-09-03 | 2019-01-01 | 太原理工大学 | A kind of selection method of acoustic emission probe type |
| US11415557B2 (en) * | 2018-11-29 | 2022-08-16 | Sichuan University | Tempo-spatial evolution test system for rock breaking in deep and complex environment |
| CN110243947A (en) * | 2019-06-18 | 2019-09-17 | 昆明理工大学 | A kind of fixed device of disk diametral compression test three-dimensional acoustic emission sensor array arrangement and array arrangement fixing means |
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| CN110632183A (en) * | 2019-10-22 | 2019-12-31 | 太原理工大学 | Fixing device and method for acoustic emission probe or ultrasonic probe |
| CN110632182A (en) * | 2019-10-22 | 2019-12-31 | 太原理工大学 | Device and method for fixing acoustic emission probe or ultrasonic probe |
| CN110632182B (en) * | 2019-10-22 | 2022-03-29 | 太原理工大学 | Device and method for fixing acoustic emission probe or ultrasonic probe |
| CN111075434A (en) * | 2019-11-29 | 2020-04-28 | 中国石油天然气集团有限公司 | Portable sound source device for acoustic logging instrument array receiving sound system field detection and using method thereof |
| CN111413198A (en) * | 2020-04-03 | 2020-07-14 | 重庆交通大学 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
| CN111413198B (en) * | 2020-04-03 | 2022-08-16 | 重庆交通大学 | Acoustic emission-resistivity-stress synchronous testing device and method for rock |
| CN114235968A (en) * | 2022-02-28 | 2022-03-25 | 中国科学院地质与地球物理研究所 | Acoustic emission probe fixing device, acoustic emission probe fixing assembly and acoustic emission probe fixing method |
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