CN112285214A - Acoustic emission probe fixing device and method - Google Patents
Acoustic emission probe fixing device and method Download PDFInfo
- Publication number
- CN112285214A CN112285214A CN202011104285.5A CN202011104285A CN112285214A CN 112285214 A CN112285214 A CN 112285214A CN 202011104285 A CN202011104285 A CN 202011104285A CN 112285214 A CN112285214 A CN 112285214A
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- acoustic emission
- emission probe
- clamping
- fixing device
- tie
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- 239000000523 sample Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 18
- 239000007822 coupling agent Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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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
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- 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
-
- 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
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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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 Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention is suitable for the technical fields of civil engineering, mineral engineering and the like, and provides a fixing device and a fixing method for an acoustic emission probe, wherein the fixing device for the acoustic emission probe comprises a clamping piece, at least one clamping mechanism is arranged on the clamping piece, and each clamping mechanism comprises at least two adjusting screws for clamping and fixing the acoustic emission probe; the tensioning band is detachably connected with the clamping piece, and one end of the tensioning band is provided with an adhesive sheet for adhering the acoustic emission probe fixing device to a test rock body; according to the embodiment of the invention, the acoustic emission probe can be quickly and effectively fixed on the rock body through the clamping piece, the adjusting screw, the tensioning band and the bonding sheet, the acoustic emission test efficiency and the acoustic emission data acquisition accuracy are improved, the operation is simple, convenient and quick, and the effective contact between the acoustic emission probe and the rock body is ensured.
Description
Technical Field
The invention belongs to the technical field of civil engineering, mineral engineering and the like, and particularly relates to a fixing device and a fixing method for an acoustic emission probe.
Background
Acoustic emission is a nondestructive testing method for evaluating material performance or structural integrity by receiving and analyzing acoustic emission signals of the material, and has functions of continuous monitoring and positioning, and in recent years, acoustic emission has been widely applied to monitoring of engineering rock masses. The crack of the microcrack in the engineering rock body can cause energy release and generate elastic waves, and the evolution and damage process of the microcrack to the rock body can be fully known and mastered through impact counting, ringing counting, energy, event counting, positioning information and the like of acoustic emission. The key step of the acoustic emission test is to effectively arrange an acoustic emission probe on the surface of a test rock body; at present, people often use adhesive tapes, elastic bands and the like to fix the acoustic emission probe, and the fixing methods not only are time-consuming and labor-consuming, but also are difficult to ensure effective contact between the acoustic emission probe and a test rock mass.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an acoustic emission probe fixing device, which aims to solve the problems set forth in the above background art.
To achieve the above object, the embodiment of the present invention is implemented as follows:
an acoustic emission probe fixture, comprising:
the clamping piece is provided with at least one clamping mechanism, and each clamping mechanism comprises at least two adjusting screws for clamping and fixing the acoustic emission probe;
and the tensioning cable tie is detachably connected with the clamping piece, and one end of the tensioning cable tie is provided with an adhesive sheet for adhering the acoustic emission probe fixing device to a test rock body.
In a preferred embodiment of the invention, the clamping piece adopts a metal sleeve, and the interior of the metal sleeve is used for clamping and fixing the acoustic emission probe; the tensioning cable tie is detachably connected with the metal sleeve.
In a preferred embodiment of the invention, one end of the adjusting screw, which is used for clamping the acoustic emission probe, is provided with a rubber gasket for reducing the abrasion of the acoustic emission probe.
In a preferred embodiment of the present invention, the thickness of the rubber gasket is 4-12mm, and in a preferred embodiment of the present invention, the thickness of the rubber gasket is 8 mm.
In a preferred embodiment of the invention, the rubber gasket is detachably connected with the adjusting screw, so that the rubber gasket can be replaced conveniently to clamp acoustic emission probes with different sizes.
In a preferred embodiment of the invention, at least two handles are arranged on the metal sleeve; the tensioning ribbon with adopt the convenient ligature formula of dismantling to connect between the handle.
In a preferred embodiment of the invention, the tensioning tie is provided with scale marks for conveniently adjusting the tensioning tie to a proper length.
Another object of an embodiment of the present invention is to provide a method for fixing an acoustic emission probe fixing device, which is applied to the acoustic emission probe fixing device, and the method includes the following steps:
(1) determining the number and the positions of the acoustic emission probes according to requirements;
(2) placing the acoustic emission probe into the clamping piece, and adjusting the adjusting screw to clamp and fix the acoustic emission probe;
(3) connecting the tensioning tie with the clamping piece and adjusting the tensioning tie to a proper length;
(4) and smearing a coupling agent at the bottom of the acoustic emission probe, and adhering the bonding sheet to the rock mass.
The acoustic emission probe fixing device provided by the embodiment of the invention has the following beneficial effects: according to the embodiment of the invention, the acoustic emission probe is quickly and effectively fixed on the rock body through the metal sleeve, the adjusting screw, the tensioning band and the bonding sheet, so that the effective contact between the acoustic emission probe and the rock body is ensured, the acoustic emission probe is convenient to disassemble, the mechanical property of the rock body is not influenced, the acoustic emission test efficiency and the acoustic emission test data acquisition accuracy are improved, the material used by the acoustic emission probe fixing device is economical and low, the acoustic emission test cost can be effectively reduced, and the operation is simple and quick.
Drawings
FIG. 1 is a top view of an acoustic emission probe fixture according to an embodiment of the present invention;
FIG. 2 is a front view of an acoustic emission probe fixture according to an embodiment of the present invention;
FIG. 3 is a schematic view of an adjusting screw in the acoustic emission probe fixing device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a tension strap in an acoustic emission probe fixture provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic view of an acoustic emission probe fixing device clamping and fixing an acoustic emission probe according to an embodiment of the present invention.
In the drawings: 1. a metal sleeve; 2. a handle; 3. adjusting screws; 4. a rubber gasket; 5. tensioning the cable tie; 6. an adhesive sheet; 7. an acoustic emission probe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, 2 and 4, a schematic structural diagram of an acoustic emission probe fixing device provided for an embodiment of the present invention includes:
the clamping piece is provided with at least one clamping mechanism, and each clamping mechanism comprises at least two adjusting screws for clamping and fixing the acoustic emission probe;
and the tensioning cable tie 5 is detachably connected with the clamping piece, and one end of the tensioning cable tie is provided with an adhesive sheet 6 for adhering the acoustic emission probe fixing device to a test rock body.
In the embodiment of the present invention, the clamping member is a metal sleeve 1, and the metal sleeve 1 may be a circular sleeve as shown in fig. 1, or a sleeve having other shapes such as a rectangle, a regular hexagon, etc.; the metal sleeve 1 is used for clamping and fixing the acoustic emission probe 7; in the embodiment of the invention, a clamping mechanism is preferably adopted on the metal sleeve 1, the clamping mechanism comprises three adjusting screws 3, the three adjusting screws 3 are positioned at the same height and are in threaded connection with the metal sleeve 1 and used for clamping and fixing the acoustic emission probe 7, and a plurality of clamping mechanisms can also be adopted to clamp and fix the acoustic emission probe 7 at different positions; at least two handles 2 are arranged on the metal sleeve 1, and three handles 2 are preferably adopted in the embodiment of the invention; the tensioning bandage 5 is connected with the handle 2 in a binding manner convenient to detach; as shown in fig. 5, an acoustic emission probe 7 is placed inside the metal sleeve 1, the acoustic emission probe 7 is clamped and fixed by adjusting three adjusting screws 3, and the metal sleeve 1 is bonded with a test rock mass through the bonding sheet 6 on the tensioning tie 5, so that the acoustic emission probe 7 can be effectively fixed for an acoustic emission test; the embodiment of the invention is convenient to disassemble, saves time and labor, and can ensure effective contact between the acoustic emission probe 7 and the rock mass.
As shown in fig. 3, as another preferred embodiment of the present invention, a rubber gasket 4 is disposed at one end of the adjusting screw 3 for clamping the acoustic emission probe 7, the thickness of the rubber gasket 4 is 4-12mm, and the preferred embodiment of the present invention is 8mm, when the adjusting screw 3 clamps the acoustic emission probe 7, the rubber gasket 4 can effectively reduce the abrasion of the adjusting screw 3 on the acoustic emission probe 7, and can further enhance the fixing effect on the acoustic emission probe 7; rubber gasket 4 with adjusting screw 3 can be dismantled and be connected, when carrying out the centre gripping to not unidimensional acoustic emission probe and fix, can be right rubber gasket 4 is changed, guarantees rubber gasket 4 and 7 laminating of acoustic emission probe further improve the fixed effect of centre gripping.
As shown in fig. 4, as another preferred embodiment of the present invention, the tensioning band 5 is provided with graduation lines, and after the tensioning band 5 is bound on the handle 2, the graduation lines on the tensioning band 5 can facilitate the adjustment of the tensioning band 5 to a proper length, so as to ensure that the tensioning band 5 is in a tensioned state when the adhesive band 6 is adhered to the rock mass.
The embodiment of the invention also provides a fixing method of the acoustic emission probe fixing device, which is applied to the acoustic emission probe fixing device and comprises the following steps:
(1) determining the number and the positions for installing the acoustic emission probes 7 according to requirements;
(2) placing the acoustic emission probe 7 into the clamping piece, and adjusting the adjusting screw 3 to clamp and fix the acoustic emission probe 7;
(3) connecting the tension tie 5 with the clamping piece and adjusting the tension tie 5 to a proper length;
(4) and (3) smearing coupling agent at the bottom of the acoustic emission probe 7, and bonding the bonding sheet 6 to the rock mass.
In the embodiment of the invention, the acoustic emission probe 7 can be clamped and fixed on the test rock quickly and effectively by the fixing method of the acoustic emission probe fixing device, and the operation is simple, convenient and quick.
The acoustic emission probe fixing device is provided in the embodiment of the invention, and a fixing method of the acoustic emission probe fixing device is provided based on the acoustic emission probe fixing device, the acoustic emission probe 7 can be effectively clamped and fixed on a test rock mass through the metal sleeve 1, the adjusting screw 3, the tensioning band 5 and the bonding sheet 6, time and labor are saved, effective contact between the acoustic emission probe 7 and the test rock mass is guaranteed, and acoustic emission test efficiency and acoustic emission test data acquisition accuracy are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An acoustic emission probe fixture, comprising:
the clamping piece is provided with at least one clamping mechanism, and each clamping mechanism comprises at least two adjusting screws for clamping and fixing the acoustic emission probe;
and the tensioning cable tie is detachably connected with the clamping piece, and one end of the tensioning cable tie is provided with an adhesive sheet for adhering the acoustic emission probe fixing device to a test rock body.
2. The acoustic emission probe fixing device according to claim 1, wherein the clamping member is a metal sleeve, and the interior of the clamping member is used for clamping and fixing the acoustic emission probe; the tensioning cable tie is detachably connected with the metal sleeve.
3. The acoustic emission probe fixture of claim 1 or 2, wherein the end of the adjusting screw for holding the acoustic emission probe is provided with a rubber gasket for reducing wear on the acoustic emission probe.
4. The acoustic emission probe fixture of claim 3, wherein the rubber gasket has a thickness of 4-12 mm.
5. The acoustic emission probe fixture of claim 3, wherein the rubber gasket is removably attached to the set screw to facilitate replacement of the rubber gasket to clamp acoustic emission probes of different sizes.
6. The acoustic emission probe fixture of claim 2, wherein the metal sleeve is provided with at least two handles; the tensioning tie is detachably bound to the handle.
7. The acoustic emission probe fixture of claim 1, wherein the tension tie is provided with graduations to facilitate adjustment of the length of the tension tie.
8. A fixing method of an acoustic emission probe fixing device applied to the acoustic emission probe fixing device according to any one of claims 1 to 7, characterized by comprising the steps of:
(1) determining the number and the positions of the acoustic emission probes according to requirements;
(2) placing the acoustic emission probe into the clamping piece, and adjusting the adjusting screw to clamp and fix the acoustic emission probe;
(3) connecting the tensioning tie with the clamping piece and adjusting the tensioning tie to a proper length;
(4) and smearing a coupling agent at the bottom of the acoustic emission probe, and adhering the bonding sheet to the rock mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104285.5A CN112285214A (en) | 2020-10-15 | 2020-10-15 | Acoustic emission probe fixing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104285.5A CN112285214A (en) | 2020-10-15 | 2020-10-15 | Acoustic emission probe fixing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112285214A true CN112285214A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011104285.5A Pending CN112285214A (en) | 2020-10-15 | 2020-10-15 | Acoustic emission probe fixing device and method |
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| CN (1) | CN112285214A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040107773A1 (en) * | 2001-06-29 | 2004-06-10 | Dunegan Harold L. | Detection of movement to termites in wood by acoustic emission techniques |
| CN205301247U (en) * | 2016-01-05 | 2016-06-08 | 中国石油大学(北京) | Experiment anchor clamps suitable for needle probe acoustic emission location |
| CN205749404U (en) * | 2016-01-19 | 2016-11-30 | 河北工程大学 | Based on Brazil's diametral compression test acoustic emission probe fixing device |
| CN108195682A (en) * | 2018-03-02 | 2018-06-22 | 华北科技学院 | For the experimental rig and its test method of the research of coal petrography tunnel mesomechanics |
| CN209004146U (en) * | 2018-09-07 | 2019-06-21 | 华中科技大学同济医学院附属协和医院 | A kind of puncture supporter and the ultrasonic puncture equipment with the puncture supporter |
| 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 |
| CN111122709A (en) * | 2019-12-27 | 2020-05-08 | 重庆大学 | Fixing device of acoustic emission probe of rock unipolar experiment |
| 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 |
-
2020
- 2020-10-15 CN CN202011104285.5A patent/CN112285214A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040107773A1 (en) * | 2001-06-29 | 2004-06-10 | Dunegan Harold L. | Detection of movement to termites in wood by acoustic emission techniques |
| CN205301247U (en) * | 2016-01-05 | 2016-06-08 | 中国石油大学(北京) | Experiment anchor clamps suitable for needle probe acoustic emission location |
| CN205749404U (en) * | 2016-01-19 | 2016-11-30 | 河北工程大学 | Based on Brazil's diametral compression test acoustic emission probe fixing device |
| CN108195682A (en) * | 2018-03-02 | 2018-06-22 | 华北科技学院 | For the experimental rig and its test method of the research of coal petrography tunnel mesomechanics |
| CN209004146U (en) * | 2018-09-07 | 2019-06-21 | 华中科技大学同济医学院附属协和医院 | A kind of puncture supporter and the ultrasonic puncture equipment with the puncture supporter |
| 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 |
| CN111122709A (en) * | 2019-12-27 | 2020-05-08 | 重庆大学 | Fixing device of acoustic emission probe of rock unipolar experiment |
| 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 |
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