CN110261490A - A kind of fixed device of easy magnetic acoustic emission sensor and its fixing means - Google Patents
A kind of fixed device of easy magnetic acoustic emission sensor and its fixing means Download PDFInfo
- Publication number
- CN110261490A CN110261490A CN201910674257.8A CN201910674257A CN110261490A CN 110261490 A CN110261490 A CN 110261490A CN 201910674257 A CN201910674257 A CN 201910674257A CN 110261490 A CN110261490 A CN 110261490A
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- China
- Prior art keywords
- magnetic
- acoustic emission
- emission sensor
- end cap
- claw
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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
- G01N29/26—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
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Abstract
The invention discloses a kind of easy magnetic fixed devices of acoustic emission sensor, including magnetic bases, magnetic end cap, embedded loose-leaf, claw and arc voussoir, magnetic bases bottom is provided with positioning port, magnetic bases inner wall is provided with embedded loose-leaf, claw is provided on embedded another leaf of loose-leaf, magnetic end cap is screwed above the magnetic bases by screw thread；The through-hole for placing acoustic emission sensor is provided in magnetic bases and magnetic end cap.The fixed form of acoustic emission sensor are as follows: mark stroke " ten " word is used centered on surface of test piece measuring point；4 positioning ports of magnetic bases are overlapped with " ten " word mark person's handwriting；It applies to spread couplant and be inserted into acoustic emission sensor bottom surface and completes to fit closely in through-hole；Left hand is pressed tight magnetic bases and is kept fixed, and the right hand, which rotates counterclockwise magnetic end cap, makes it drive the rotation of arc voussoir, to eject claw clamping acoustic emission sensor.The configuration of the present invention is simple, vdiverse in function, reliable performance is cheap, produces and uses convenient for a wide range of.
Description
Technical field
The invention belongs to metal specimen acoustic emission detection field, specifically a kind of easy magnetic acoustic emission sensor is fixed
Device.
Background technique
During acoustic emission detection, a primary step is correct installation acoustic emission sensor, it is desirable that acoustic emission sensor
Coupling surface fitted closely with testee surface so that acoustic emission signal is efficiently transmitted.Common acoustic emission sensor
Mounting means has screw, fixture, glue, adhesive tape etc..Wherein, screw fixation method requires to beat threaded hole in surface of test piece, can break
Bad surface of test piece；Acoustic emission sensor is directly fixed on the damage that surface of test piece easily causes acoustic emission sensor with glue
It is bad, it is not easy to repeatedly use；Adhesive tape fixed form is simultaneously insecure, inconvenient in greasy, dust, hot environment to use.City
Have several moneys on field and be directed to the magnetic clamp that acoustic emission sensor uses, however applicable object is single, has a single function, a magnetism
Fixture can only match the identical acoustic emission sensor of a size.Meanwhile there is also centerings to be not allowed for the installation of acoustic emission sensor
The case where, this has larger impact for certain inspection occasions for requiring accurate positioning.
Summary of the invention
In view of the defects existing in the prior art, the present invention provides it is a kind of be simple to manufacture, sound cheap, easy for installation
Emission sensor fixes device.
In order to solve the above technical problems, scheme used by its technical problem of solution proposed by the present invention is:
There is provided a kind of easy magnetic fixed device of acoustic emission sensor, including magnetic bases (1), which is characterized in that also
It include magnetic end cap (2), embedded loose-leaf (11), claw (12) and arc voussoir (21), magnetic bases (1) bottom is set
It is equipped with positioning port (3), magnetic bases (1) inner wall is provided with embedded loose-leaf (11), and the embedded loose-leaf (11) is another
It is provided on leaf claw (12), the magnetism end cap (2) is arranged above the magnetic bases (1) by screw thread (3).
Further, the shape of the magnetic bases (1) and magnetic end cap (2) is that round and internal-and external diameter is identical, the magnetism
Pedestal (1) the inner circle radius radius round to projection slightly larger than the end of acoustic emission sensor (4).
Further, the positioning port (3) is 4, is evenly distributed in the circumferential direction of the magnetic bases (1) bottom.
Further, the lower half page insertion of the embedded loose-leaf (11) is arranged in the magnetic bases inner wall, upper half page
Insertion is arranged in the inner wall of the claw (12), can make 90 ° of claw swings by the rotation of upper half page.
Further, the cambered surface A of the claw (12) is identical as the inner arc surface B curvature of the magnetic bases, and material is
Polyurethane.
Further, the arc voussoir (21) is fixed on described magnetic end cap (2) inside front, the arc voussoir (21)
Cambered surface C it is identical as the inner arc surface B curvature of the magnetic bases (1) so that the arc voussoir (21) is when circumferentially rotating
Smoothly the claw (12) are ejected.
Further, the magnetic bases (1) are provided with external screw thread, and the magnetism end cap (2) is provided with internal screw thread.
The present invention proposes a kind of fixing means of easy magnetic acoustic emission sensor simultaneously, using above-mentioned a kind of easy
The fixed device of magnetic acoustic emission sensor, fixation procedure are as follows:
The magnetic bases (1) and the magnetic end cap (2) are first threaded to initial position, at this time claw (12) convergence
In in the guide rail of the magnetic bases (1)；Test specimen target anchor point is found, mark stroke " ten " word is used centered on anchor point；
The magnetic bases (1) are placed on acoustic emission detection subject surface, by the notes of " ten " word mark and 4 positioning ports (3)
It is overlapped, test specimen target anchor point is centering；It is applied in the acoustic emission sensor (4) bottom surface and spreads couplant, be inserted into described
In magnetic bases (1) and the through-hole of the magnetic end cap (2), keep the coupling surface (5) and sound emission test specimen target detection position tight
Closely connected conjunction；Last left hand is pressed the tight magnetic bases (1) and is kept fixed, and the right hand, which rotates counterclockwise the magnetic end cap (2), makes it
The arc voussoir (21) is driven to rotate, so that the claw (12) are ejected, thus acoustic emission sensor described in clamping (4).
Compared with prior art, the beneficial effects of the present invention are: the present invention can be by the various sizes of sound hair of claw clamping
Sensor is penetrated, there is certain versatility.Facilitate installation, easy to operate, gently the card of acoustic emission sensor can be realized in rotation
Tight and disassembly.Four positioning ports of design are dexterously convenient for acoustic emission sensor to be accurately mounted on measuring point in.Knot of the present invention
Structure is simple, vdiverse in function, and reliable performance is cheap, produces and uses convenient for a wide range of.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is overall structure of the present invention:
Fig. 2 is claw structure partial enlarged drawing built in the present invention:
Fig. 3 is apparatus of the present invention original state and postrotational top view illustration:
In figure: (1)-magnetic bases, (11)-embedded loose-leaf, (12)-claw, (2)-magnetism end cap, (21)-arc wedge
Block, (3)-screw thread, (4)-acoustic emission sensor, (5)-coupling surface, (6)-sub-miniature A connector.
Specific embodiment
It is described in further detail below with reference to preferred embodiment and attached drawing cooperation, described specific embodiment is only right
The present invention is explained, and is not intended to limit the invention:
As shown in Figure 1, a kind of easy magnetic fixed device of acoustic emission sensor, including magnetic bases (1), magnetic end cap
(2), embedded loose-leaf (11), claw (12) and arc voussoir (21).The shape of the magnetic bases (1) is hollow cylinder,
Internal diameter is 22mm, outer dimension 27mm；Positioning port (3), the magnetic are provided at magnetic bases (1) the exterior bottom seamed edge
Property pedestal (1) inner wall upper end is provided with embedded loose-leaf (11), is provided with claw on another leaf of the embedded loose-leaf (11)
(12), the embedded loose-leaf (11) is fixed by 4 screws.The magnetism end cap (2) is arranged by screw thread (3) in the magnetism
Above pedestal (1).
Preferably, the shape of the magnetic bases (1) and magnetic end cap (2) is that round and internal-and external diameter is identical, the magnetism
Pedestal (1) the inner circle radius radius round to projection slightly larger than the end of acoustic emission sensor (4), so that acoustic emission sensor (4) exists
Still there are a little gaps after circular hole in being inserted into；The outer circumference surface of the magnetic bases (1) and magnetic end cap (2) has engraved bumps
Decorative pattern, convenient for preferably exerting a force when rotated；The material of the magnetic bases (1) and magnetic end cap (2) is magnetic superpower and just
In the material of processing, such as neodymium iron boron, cost performance is high, has good mechanical property.
Preferably, the positioning port (3) is 4, is evenly distributed in the circumferential direction of the magnetic bases (1) bottom.
Preferably, the lower half page insertion of the embedded loose-leaf (11) is arranged in the magnetic bases inner wall, upper half page
Insertion is arranged in the inner wall of the claw (12), and the page radian of loose-leaf is identical as inner peripheral surface radian, passes through upper half page
Rotation can drive 90 ° of claw swings, and specific amplitude of stretching out is determined by the internal diameter of the acoustic emission sensor.
Preferably, the number of the claw (12) is 5, is uniformly distributed in the magnetic bases built-in tracks；It is described
The cambered surface A of claw (12) and the inner arc surface B curvature of the magnetic bases are identical；The material of the claw (12) is that high friction is special
The polyurethane of property, tightly to block the acoustic emission sensor (4).
Preferably, the arc voussoir (21) is fixed on described magnetic end cap (2) inside front, the arc voussoir (21)
Cambered surface C it is identical as the inner arc surface B curvature of the magnetic bases (1) so that the arc voussoir (21) is when circumferentially rotating
Smoothly the claw (12) are ejected；The arc voussoir (21) and the contact surface of the claw (12) agree with completely；The arc
Shape voussoir (21) material is also magnetic material neodymium iron boron, when rotating clockwise arc voussoir (21) the return original state,
The top half of the embedded loose-leaf (11) will drive the claw (12) to return to original state due to magnetic attraction.
Preferably, the magnetic bases (1) and magnetic end cap (2) are connected by the screw thread (3), the magnetic bases
(1) it is provided with external screw thread, the magnetism end cap (2) is provided with internal screw thread.
As shown in Figures 2 and 3, the process of the fixed acoustic emission sensor (4) of the fixed device of the present invention is: first will be described
Magnetic bases (1) and the magnetic end cap (2) are threaded to initial position, and the claw (12) converges on the magnetic bases at this time
(1) in guide rail；Test specimen target anchor point is found, mark stroke " ten " word is used centered on anchor point；By the magnetic bases
(1) it is placed on acoustic emission detection subject surface, " ten " word mark is taken down notes and is overlapped with 4 positioning ports (3), test specimen target is fixed
Site is centering；It is applied in the acoustic emission sensor (4) bottom surface and spreads couplant, be inserted into the magnetic bases (1) and institute
In the through-hole for stating magnetic end cap (2), fit closely the coupling surface (5) with sound emission test specimen target detection position；Last left hand
It presses the tight magnetic bases (1) to be kept fixed, the right hand, which rotates counterclockwise the magnetic end cap (2), makes it drive the arc voussoir
(21) it rotates counterclockwise and moves down, so that 5 claws (12) of ejection tightly block the acoustic emission sensor (4)；
Under working condition, since the magnetic bases (1) and magnetic end cap (2) they are magnetic material, magnetic field force, thread friction power and
It can make device that stabilization be kept not loosen under the action of claw (12) frictional force.
Although above in conjunction with attached drawing, invention has been described, and the invention is not limited to above-mentioned specific implementations
Mode, the above mentioned embodiment is only schematical, rather than restrictive.The technical staff of the industry should
Solution, in the case where not departing from enlightenment of the invention, the present invention also has many changes and improvements, these changes and improvements should belong to this
Within the protection of invention.
Claims (8)
1. a kind of easy magnetic fixed device of acoustic emission sensor, including magnetic bases (1), which is characterized in that further include having
Magnetic end cap (2), embedded loose-leaf (11), claw (12) and arc voussoir (21), magnetic bases (1) bottom are provided with fixed
Position mouth (3), magnetic bases (1) inner wall are provided with embedded loose-leaf (11), another Ye Shangshe of the embedded loose-leaf (11)
It is equipped with claw (12), the magnetism end cap (2) is arranged above the magnetic bases (1) by screw thread (3).
2. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 1, which is characterized in that the magnetism
The shape of pedestal (1) and magnetic end cap (2) is that round and internal-and external diameter is identical, and magnetic bases (1) inner circle radius is slightly larger than sound
Radius of the end of emission sensor (4) to projection circle.
3. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 1, which is characterized in that the positioning
Mouth (3) is 4, is evenly distributed in the circumferential direction of the magnetic bases (1) bottom.
4. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 1, which is characterized in that the insertion
The lower half page insertion of formula loose-leaf (11) is arranged in the magnetic bases inner wall, and the insertion of upper half page is arranged in the claw (12)
In inner wall, 90 ° of claw swings can be made by the rotation of upper half page.
5. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 1, which is characterized in that the claw
(12) cambered surface A is identical as the inner arc surface B curvature of the magnetic bases, and material is polyurethane.
6. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 2, which is characterized in that the arc
Voussoir (21) is fixed on described magnetic end cap (2) inside front, the cambered surface C and the magnetic bases of the arc voussoir (21)
(1) inner arc surface B curvature is identical, so that the arc voussoir (21) smoothly pushes up the claw (12) when circumferentially rotating
Out.
7. a kind of easy magnetic fixed device of acoustic emission sensor according to claim 1, which is characterized in that the magnetism
Pedestal (1) is provided with external screw thread, and the magnetism end cap (2) is provided with internal screw thread.
8. a kind of fixing means of easy magnetic acoustic emission sensor, which is characterized in that using a kind of as described in claim 1
The easy fixed device of magnetism acoustic emission sensor, fixation procedure are as follows:
The magnetic bases (1) and the magnetic end cap (2) are first threaded to initial position, the claw (12) converges on institute at this time
In the guide rail for stating magnetic bases (1)；Test specimen target anchor point is found, mark stroke " ten " word is used centered on anchor point；By institute
It states magnetic bases (1) and is placed on acoustic emission detection subject surface, " ten " word mark is taken down notes and is overlapped with 4 positioning ports (3),
Test specimen target anchor point is centering；It is applied in the acoustic emission sensor (4) bottom surface and spreads couplant, be inserted into the magnetic bottom
In seat (1) and the through-hole of the magnetic end cap (2), fit closely the coupling surface (5) with sound emission test specimen target detection position；
Last left hand is pressed the tight magnetic bases (1) and is kept fixed, and the right hand, which rotates counterclockwise the magnetic end cap (2), to be made described in its drive
Arc voussoir (21) is rotated counterclockwise and is moved down, so that the claw (12) are ejected, thus voice sending sensor described in clamping
Device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674257.8A CN110261490A (en) | 2019-07-25 | 2019-07-25 | A kind of fixed device of easy magnetic acoustic emission sensor and its fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674257.8A CN110261490A (en) | 2019-07-25 | 2019-07-25 | A kind of fixed device of easy magnetic acoustic emission sensor and its fixing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110261490A true CN110261490A (en) | 2019-09-20 |
Family
ID=67928187
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910674257.8A Pending CN110261490A (en) | 2019-07-25 | 2019-07-25 | A kind of fixed device of easy magnetic acoustic emission sensor and its fixing means |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149587Y (en) * | 2008-01-22 | 2008-11-12 | 长沙理工大学 | Fixed bearing with continuously adjustable clamping force for acoustic emission sensor |
| CN101498686A (en) * | 2009-02-25 | 2009-08-05 | 中国石油天然气股份有限公司 | Thread magnetism detector for drilling tool |
| CN203900528U (en) * | 2014-06-24 | 2014-10-29 | 党金行 | Swinging claw type chuck |
| CN107101886A (en) * | 2017-04-27 | 2017-08-29 | 天津大学 | The acoustic emission sensor fixing device and its fixing means of plain type |
| CA2971264A1 (en) * | 2016-08-25 | 2018-02-25 | The Boeing Company | Acoustic emission sensor holder |
| US20180372894A1 (en) * | 2017-06-23 | 2018-12-27 | Research Institute Of Petroleum Exploration & Development, Petrochina Company Limited | Acoustic sensor for rock crack detection |
| CN110007339A (en) * | 2019-04-22 | 2019-07-12 | 中国矿业大学 | A kind of recoverable microseismic sensors drilling rapid installation device and method |
-
2019
- 2019-07-25 CN CN201910674257.8A patent/CN110261490A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149587Y (en) * | 2008-01-22 | 2008-11-12 | 长沙理工大学 | Fixed bearing with continuously adjustable clamping force for acoustic emission sensor |
| CN101498686A (en) * | 2009-02-25 | 2009-08-05 | 中国石油天然气股份有限公司 | Thread magnetism detector for drilling tool |
| CN203900528U (en) * | 2014-06-24 | 2014-10-29 | 党金行 | Swinging claw type chuck |
| CA2971264A1 (en) * | 2016-08-25 | 2018-02-25 | The Boeing Company | Acoustic emission sensor holder |
| CN107101886A (en) * | 2017-04-27 | 2017-08-29 | 天津大学 | The acoustic emission sensor fixing device and its fixing means of plain type |
| US20180372894A1 (en) * | 2017-06-23 | 2018-12-27 | Research Institute Of Petroleum Exploration & Development, Petrochina Company Limited | Acoustic sensor for rock crack detection |
| CN110007339A (en) * | 2019-04-22 | 2019-07-12 | 中国矿业大学 | A kind of recoverable microseismic sensors drilling rapid installation device and method |
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Application publication date: 20190920 |