CN109459487A - A kind of adaptive excitation unit - Google Patents
A kind of adaptive excitation unit Download PDFInfo
- Publication number
- CN109459487A CN109459487A CN201811557250.XA CN201811557250A CN109459487A CN 109459487 A CN109459487 A CN 109459487A CN 201811557250 A CN201811557250 A CN 201811557250A CN 109459487 A CN109459487 A CN 109459487A
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- magnetic yoke
- rotation axis
- spring
- connecting component
- shaped magnetic
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- 230000005284 excitation Effects 0.000 title claims abstract description 48
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 230000005484 gravity Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001550 testis Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/725—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables by using magneto-acoustical effects or the Barkhausen effect
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnets (AREA)
Abstract
The present invention provides a kind of adaptive excitation units, comprising: shell, spring, connecting component, rotation axis and U-shaped magnetic yoke；U-shaped magnetic yoke includes: U-shaped skeleton, excitation coil and a fixation member；Connecting component is fixed on outer casing inner wall top by spring, so that connecting component moves up and down with the deformation of spring；One end of rotation axis is flexibly connected with connecting component far from one end of spring, and the other end of rotation axis is fixed on one end of fixation member；The other end of fixation member is fixed on the top of U-shaped magnetic yoke, so that U-shaped magnetic yoke is rotated with the axial direction of rotation axis and contacts the bottom of the U-shaped skeleton with unit under test.The U-shaped magnetic yoke of the application can realize adjust automatically in certain amplitude, as unit under test surface curvature change carries out adaptively, it remains U-shaped two magnetic pole of magnetic yoke with unit under test surface well to contact, to have the beneficial effect of the stability of the consistency and excitation that guarantee contact.
Description
Technical field
The present invention relates to Electromagnetic Testing Technology field more particularly to a kind of adaptive excitation units.
Background technique
In engineering, in the Magnetic testis such as magnetosonic transmitting, Barkhausen, low frequency electromagnetic, made using coiling in U-shaped magnetic yoke
For excitation unit, when detection, contacts U-shaped two magnetic pole of magnetic yoke with unit under test.U-shaped two magnetic pole of magnetic yoke is contacted with unit under test
Guarantee good excitation and the consistent important guarantee of excitation field.Currently, excitation unit generallys use hand with the contact of test specimen to be measured
The mode of work pressing, manual pressure is it is difficult to ensure that the consistency contacted every time, and excitation is frequently with alternating magnetic field mode, excitation
It is easy to happen the shake of U-shaped magnetic yoke in the process, influences the stability of excitation.If, can in such a way that automatic machinery people clamps
Guarantee the stabilization of excitation and the consistency of contact, but manipulator is generally only applicable in laboratory automation detection, it is existing in industry
In field detecting, automatic machinery people is not portable, and tested parts surface is irregular, increases difficulty to on-site test.
Therefore, how to guarantee that U-shaped magnetic yoke the two poles of the earth contact the consistency and excitation contacted with unit under test in Magnetic testi
Stability is current technical problem urgently to be resolved.
Summary of the invention
In order to solve defect in the prior art, the present invention provides a kind of adaptive excitation units, by spring and turn
Moving axis remains two magnetic poles of U-shaped magnetic yoke with unit under test well to contact, and has the consistency and excitation for guaranteeing contact
The beneficial effect of stability.
To achieve the goals above, a kind of adaptive excitation unit provided by the invention, the device include: shell, spring,
Connecting component, rotation axis, U-shaped magnetic yoke；The excitation coil that the U-shaped magnetic yoke includes: U-shaped skeleton, is wound on the U-shaped skeleton
An and fixation member；
The connecting component is fixed on the outer casing inner wall top by the spring, so that the connecting component is with institute
The deformation for stating spring moves up and down；
One end of the rotation axis is flexibly connected with the connecting component far from one end of the spring, the rotation axis
The other end is fixed on one end of the fixation member；
The other end of the fixation member is fixed on the top of the U-shaped magnetic yoke, so that the U-shaped magnetic yoke is with the rotation
The axial direction of axis is rotated and contacts the bottom of the U-shaped skeleton with unit under test.
A kind of adaptive excitation unit provided by the invention, the device include: shell, spring, connecting component, rotation axis, U
Type magnetic yoke；The U-shaped magnetic yoke includes: U-shaped skeleton, the excitation coil being wound on the U-shaped skeleton and a fixation member；It is described
Connecting component is fixed on the outer casing inner wall top by the spring, so that deformation of the connecting component with the spring
It moves up and down；One end of the rotation axis is flexibly connected with the connecting component far from one end of the spring, and described turn
The other end of moving axis is fixed on one end of the fixation member；The other end of the fixation member is fixed on the U-shaped magnetic yoke
Top, so that the U-shaped magnetic yoke is rotated with the axial direction of the rotation axis and made bottom and the unit under test of the U-shaped skeleton
Contact.The application keeps two magnetic poles of U-shaped magnetic yoke and well connecing for unit under test by the adaptive adjustment of spring and rotation axis
Touching has the beneficial effect of the stability of the consistency and excitation that guarantee contact.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of perspective view of adaptive excitation unit of the application；
Fig. 2 is the front view of the adaptive excitation unit in one embodiment of the application；
Fig. 3 is the left view of the adaptive excitation unit in one embodiment of the application；
Fig. 4 is the perspective view of the adaptive excitation unit in one embodiment of the application；
Fig. 5 is the left view of the adaptive excitation unit in one embodiment of the application；
Fig. 6 is the schematic diagram that the shell in one embodiment of the application is just contacted with unit under test surface；
Fig. 7 is the schematic diagram of the shell and the full contact of unit under test surface in one embodiment of the application；
Fig. 8 is schematic diagram adjusted above and below U-shaped magnetic yoke in one embodiment of the application；
Fig. 9 is the U-shaped magnetic yoke in one embodiment of the application or so schematic diagram adjusted.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
Also non-to limit the present invention, only for distinguishing with the element of same technique term description or operation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
In view of the deficiencies in the prior art, this application provides a kind of adaptive excitation unit, structural schematic diagrams
As shown in Figure 1, the device includes: shell 1, spring 2, connecting component 3, rotation axis 4, U-shaped magnetic yoke 5.
As shown in Figure 1, the connecting component 3 is fixed on the 1 inner wall top of shell by the spring 2, so that described
Connecting component 3 moves up and down with the deformation of the spring 2.
Wherein, as shown in Fig. 2, U-shaped magnetic yoke 5 include: U-shaped skeleton 501, the excitation coil 502 being wound on U-shaped skeleton and
One fixation member 503.Display platform avoids spring 3 from being constantly in stretched condition for placing adaptive excitation unit.
As shown in Figure 1, one end of rotation axis 4 is flexibly connected with connecting component 3 far from one end of spring, as shown in Fig. 2, turning
The other end of moving axis is fixed on one end of fixation member 503.
As shown in Fig. 2, the other end of fixation member 503 is fixed on the top of U-shaped magnetic yoke 5, so that U-shaped magnetic yoke 5 is with rotation
The axial direction of axis 4 is rotated and contacts the bottom of U-shaped skeleton 501 with unit under test.
In one embodiment, as shown in Fig. 2, fixation member 503 is arranged in parallel in inside U-shaped skeleton 501.
In one embodiment, as shown in figure 3, connecting component 3 is equipped with a limiting slot 301 along its length, and by limiting
Interconnecting piece 3 are divided into the sliding bar 302 in left side and the connecting rod 303 on right side by slot 301.
In one embodiment, as shown in figure 3, the adaptive excitation unit further include: be fixed on shell 1 close to spring 2
Inner sidewall on limiting component 6.Wherein, limiting component 6 is equipped with the first through hole 601 of a parallel attachment members 3, first through hole
601 match with sliding bar 302.
In one embodiment, as shown in figure 3, sliding bar 302 runs through first through hole 601, so that the cooperation limit of sliding bar 302
Position component 6 slides in limiting slot 301.
In one embodiment, as shown in figure 4, the other end of rotation axis 4 is by being set to the of 503 one end of fixation member
Two through-holes 504 are fixed.Second through-hole 504 is set to the center of gravity of U-shaped magnetic yoke 1 so that U-shaped magnetic yoke 1 along rotation axis 4 it is axial into
State in balance when row rotation.
In one embodiment, as shown in figure 4, being set as being open below shell.
In one embodiment, as shown in figure 5, the adaptive excitation unit further include: universal joint 7, one end of rotation axis 4
One end with connecting component 3 far from spring 2 is flexibly connected by universal joint 7.
It is intended to guarantee good excitation, need to guarantee the bottom of U-shaped magnetic yoke and the good surface contact of unit under test all the time.
The U-shaped magnetic yoke installation of the application moves up and down with sliding up and down for sliding bar 302, carries out with rotation axis 4 along axial rotation
Left-right rotation.The U-shaped magnetic yoke of the application can realize adjust automatically in certain amplitude, with unit under test surface curvature change into
Row is adaptive, remains the bottom of U-shaped magnetic yoke with unit under test surface and well contacts, and guarantees the consistency and excitation of contact
Stability.
As shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, self-regulating process is as follows when detecting for the adaptive excitation unit:
As shown in fig. 6, when shell and unit under test surface initial contact, since there are radian, U on unit under test surface
The bottom (side bottom 506 and another side bottom 507) of type magnetic yoke can not well be contacted with the surface of unit under test.
The inclination of shell at any time at this time, U-shaped magnetic yoke carry out automatic adjusument.As shown in fig. 7, case surface and tested first
Parts surface tentatively completely attaches to.Due to the centre of gravity adjustment of U-shaped magnetic yoke, U-shaped magnetic yoke makes under the action of spring downward force at this time
Sliding bar is moved downward along sliding groove direction, contacts a side bottom 506 of U-shaped magnetic yoke with unit under test surface first, such as Fig. 8
It is shown.Simultaneously because the centre of gravity adjustment of U-shaped magnetic yoke, U-shaped magnetic yoke is rotated with the axial direction of rotation axis, makes the another of U-shaped magnetic yoke
Side bottom 507 is contacted with unit under test surface, as shown in Figure 9.At this point, the application can just under the action of spring downward power
Be always ensured that U-shaped magnetic yoke 5 bottom (side bottom 506 and another side bottom 507) and unit under test surface keep it is good
Good contact has the stability of the consistency and excitation that guarantee contact.
A kind of adaptive excitation unit provided by the invention, the device include: shell, spring, connecting component, rotation axis, U
Type magnetic yoke；U-shaped magnetic yoke includes: U-shaped skeleton, the excitation coil being wound on U-shaped skeleton and a fixation member；Connecting component passes through
Spring is fixed on outer casing inner wall top, so that connecting component moves up and down with the deformation of spring；One end of rotation axis with
Connecting component is flexibly connected far from one end of spring, and the other end of rotation axis is fixed on one end of fixation member；Fixation member
The other end is fixed on the top of U-shaped magnetic yoke, so that U-shaped magnetic yoke is rotated with the axial direction of rotation axis and made the U-shaped skeleton
Bottom is contacted with unit under test.The U-shaped magnetic yoke of the application can realize adjust automatically in certain amplitude, with unit under test surface
Curvature varying adaptively, remain the bottom of U-shaped magnetic yoke with the surface of unit under test and well contact, and protects to have
Demonstrate,prove the beneficial effect of the consistency of contact and the stability of excitation.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
1. a kind of adaptive excitation unit characterized by comprising shell, spring, connecting component, rotation axis, U-shaped magnetic yoke；Institute
Stating U-shaped magnetic yoke includes: U-shaped skeleton, the excitation coil being wound on the U-shaped skeleton and a fixation member；
The connecting component is fixed on the outer casing inner wall top by the spring, so that the connecting component is with the bullet
The deformation of spring moves up and down；
One end of the rotation axis is flexibly connected with the connecting component far from one end of the spring, the rotation axis it is another
One end of the fixation member is fixed at end；
The other end of the fixation member is fixed on the top of the U-shaped magnetic yoke, so that the U-shaped magnetic yoke is with the rotation axis
Axially is rotated and contact the bottom of the U-shaped skeleton with unit under test.
2. adaptive excitation unit according to claim 1, which is characterized in that the fixation member is arranged in parallel in described
U-shaped skeletal internal.
3. adaptive excitation unit according to claim 1, which is characterized in that the connecting component is equipped with along its length
One limiting slot, and the connecting component is divided into the sliding bar in left side and the connecting rod on right side by the limiting slot.
4. adaptive excitation unit according to claim 3, which is characterized in that further include: it is close to be fixed on the shell
Limiting component on the inner sidewall of the spring；The limiting component is equipped with the first through hole of a parallel connecting component；Institute
First through hole is stated to match with the sliding bar.
5. adaptive excitation unit according to claim 4, which is characterized in that the sliding bar is logical through described first
Hole, so that the sliding bar cooperates the limiting component to slide in the limiting slot.
6. adaptive excitation unit according to claim 1, which is characterized in that the other end of the rotation axis passes through setting
The second through-hole in described fixation member one end is fixed；Second through-hole is set to the center of gravity of the U-shaped magnetic yoke, so that institute
State the state in balance when U-shaped magnetic yoke is rotated along the axial direction of the rotation axis.
7. adaptive excitation unit according to claim 1, which is characterized in that be set as being open below the shell.
8. adaptive excitation unit according to claim 1, which is characterized in that further include: universal joint, the rotation axis
The one end of one end with the connecting component far from the spring is flexibly connected by the universal joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557250.XA CN109459487B (en) | 2018-12-19 | 2018-12-19 | Self-adaptive excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557250.XA CN109459487B (en) | 2018-12-19 | 2018-12-19 | Self-adaptive excitation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109459487A true CN109459487A (en) | 2019-03-12 |
| CN109459487B CN109459487B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811557250.XA Active CN109459487B (en) | 2018-12-19 | 2018-12-19 | Self-adaptive excitation device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539543A (en) * | 1983-07-28 | 1985-09-03 | Takamisawa Electric Co., Ltd. | Core structure for an electromagnetic relay |
| JP2004333484A (en) * | 2003-04-18 | 2004-11-25 | Osaka Gas Co Ltd | Magnetic flaw detection method and magnetic flaw detection apparatus |
| JP2010151686A (en) * | 2008-12-25 | 2010-07-08 | Jtekt Corp | Flaw detection device, and method for manufacturing bearing device for vehicle using the flaw detection device |
| CN102292789A (en) * | 2009-01-21 | 2011-12-21 | 松下电工株式会社 | Sealed contact device |
| JP2013181892A (en) * | 2012-03-02 | 2013-09-12 | Osaka Gas Co Ltd | Magnetic flaw detection device |
| CN203786082U (en) * | 2014-03-26 | 2014-08-20 | 国家电网公司 | Flexible crossed magnet yoke |
| CN204065017U (en) * | 2014-02-26 | 2014-12-31 | 国家电网公司 | A kind of crossed yoke magnetic powder inspection device |
| KR101649327B1 (en) * | 2015-06-04 | 2016-08-18 | 주식회사 포스코 | Apparatus and method for inspecting the surface of strip |
| CN107850573A (en) * | 2015-08-19 | 2018-03-27 | 三菱电机株式会社 | Hawser failure detector and adjustment tool |
| CN209356447U (en) * | 2018-12-19 | 2019-09-06 | 中国特种设备检测研究院 | A kind of adaptive excitation unit |
-
2018
- 2018-12-19 CN CN201811557250.XA patent/CN109459487B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539543A (en) * | 1983-07-28 | 1985-09-03 | Takamisawa Electric Co., Ltd. | Core structure for an electromagnetic relay |
| JP2004333484A (en) * | 2003-04-18 | 2004-11-25 | Osaka Gas Co Ltd | Magnetic flaw detection method and magnetic flaw detection apparatus |
| JP2010151686A (en) * | 2008-12-25 | 2010-07-08 | Jtekt Corp | Flaw detection device, and method for manufacturing bearing device for vehicle using the flaw detection device |
| CN102292789A (en) * | 2009-01-21 | 2011-12-21 | 松下电工株式会社 | Sealed contact device |
| JP2013181892A (en) * | 2012-03-02 | 2013-09-12 | Osaka Gas Co Ltd | Magnetic flaw detection device |
| CN204065017U (en) * | 2014-02-26 | 2014-12-31 | 国家电网公司 | A kind of crossed yoke magnetic powder inspection device |
| CN203786082U (en) * | 2014-03-26 | 2014-08-20 | 国家电网公司 | Flexible crossed magnet yoke |
| KR101649327B1 (en) * | 2015-06-04 | 2016-08-18 | 주식회사 포스코 | Apparatus and method for inspecting the surface of strip |
| CN107850573A (en) * | 2015-08-19 | 2018-03-27 | 三菱电机株式会社 | Hawser failure detector and adjustment tool |
| CN209356447U (en) * | 2018-12-19 | 2019-09-06 | 中国特种设备检测研究院 | A kind of adaptive excitation unit |
Non-Patent Citations (1)
| Title |
|---|
| 陈英华 等: "军用密封电磁继电器整机振动特性仿真分析", 低压电器, vol. 2007, no. 13, pages 1 - 4 * |
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| CN109459487B (en) | 2024-04-05 |
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