CN206725738U - Portable permanent-magnetic field detector - Google Patents
Portable permanent-magnetic field detector Download PDFInfo
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- CN206725738U CN206725738U CN201720426564.0U CN201720426564U CN206725738U CN 206725738 U CN206725738 U CN 206725738U CN 201720426564 U CN201720426564 U CN 201720426564U CN 206725738 U CN206725738 U CN 206725738U
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- China
- Prior art keywords
- neodymium iron
- iron boron
- yoke
- magnetic field
- magnetic body
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Abstract
The utility model discloses a kind of portable permanent-magnetic field detector, including N poles neodymium iron boron magnetic body and S poles neodymium iron boron magnetic body, the top of every piece of neodymium iron boron magnetic body is fixedly connected with a contact, the bottom of every piece of neodymium iron boron magnetic body is fixedly connected with a yoke, is connected between two yoke by the strip handspike；Pass through rotary type bolt connection between the yoke and the handspike.The utility model is that raw material make magnetic pole using neodymium iron boron magnetic body, it is not necessary to which power supply can be detected, and substantially reduce volume, alleviate weight, light portable.
Description
Technical field
Detecting instrument field is the utility model is related to, particularly a kind of magnetic field measurement instrument.
Background technology
After being magnetized due to ferrimagnet workpiece, there may be the position of discontinuity, Magnetic testing is a kind of
Method for detecting surface discrete state after workpiece is magnetized.After ferrimagnet workpiece is magnetized, discontinuous position
The magnetic line of force can occur local distortion and produce stray field, now such as by spreading lower magnetic on its surface, these discontinuous positions
Magnetic will be adsorbed, under suitable illumination formed visually visible magnetic trace, so as to show the position of discontinuity, size,
Shape and the order of severity.Magnetic field measurement instrument is the magnetic field detection instrument using the principle design of Magnetic testing.
Traditional portable magnetic field measurement instrument is designed based on Magnetic testing principle, mainly by electromagnetic yoke, wire,
Batteries are into due to that need to meet NB/T 47013.4-2016《The part of bearing device Non-Destructive Testing the 4th：Magnetic testing》
4.5.2 the requirement of bar, direct circuit harness will at least have 177N lifting force, and traditional portable magnetic field measurement instrument is to meet that this will
Ask often make it is very heavy.Moreover, exhausting it is difficult to ensure that lifting force meets always with electric quantity of power supply in real work
177N；And in some do not allow the working environment of naked light, for example Qing Zhanhean areas, hot line job have very big risk.
It is therefore desirable to be improved to existing equipment, to adapt in power supply, work high above the ground is lacked, do not allow the adverse circumstances of naked light
Use.
Utility model content
The utility model technical issues that need to address be to provide it is a kind of it is simple in construction, portable it is light, measurement result is accurate
Permanent magnetic field detector, can in non-transformer environment to magnetic conductor apply a strong magnetic field magnetization detection is carried out to it.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
Portable permanent-magnetic field detector, including N poles neodymium iron boron magnetic body and S poles neodymium iron boron magnetic body, every piece of neodymium iron boron magnetic body
Top be fixedly connected with a contact, the bottom of every piece of neodymium iron boron magnetic body is fixedly connected with a yoke, leads between two yoke
Long strip-form iron handle connection.
Above-mentioned portable permanent-magnetic field detector, passes through rotary type bolt connection between the yoke and the handspike.
Above-mentioned portable permanent-magnetic field detector, the top of the contact are arranged to ramp structure, the inclined-plane phase of two contacts
To setting.
Above-mentioned portable permanent-magnetic field detector, the contact, yoke and the handspike are made by soft iron.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
The utility model is that raw material make magnetic pole using neodymium iron boron magnetic body, with conventional portable yoke battery, wire, sense
The monitor for answering iron to form is compared, it is not necessary to which power supply can be detected, and substantially reduce volume, alleviate weight, light easy
Carry.Configuration aspects：Avoided by the way of soft iron contact and neodymium iron boron magnetic body link together neodymium iron boron directly with part
Hit, and ramp-like structures are used at the top of yoke, be easier to apply magnetic field, and magnetic pole can not be damaged, it is also convenient from unit under test
On remove；Rotary type bolt connection is used between yoke and the handspike, can conveniently adjust yoke angle, convert magnetic pole between
Away from.The utility model is applied in power free environment, can quickly, easily detect lacking for magnetic conductive material surface and near surface
Fall into, be readily applicable to work high above the ground and do not allow the magnetic field detection that magnetic conductor is carried out in the adverse circumstances of naked light.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1. contact, 2. neodymium iron boron magnetic bodies, 3. yokes, 4. handspikes, 5. rotary type bolts.
Embodiment
The utility model is further elaborated below in conjunction with specific embodiment.
A kind of portable permanent-magnetic field detector, its structure is as shown in figure 1, including two pieces of neodymium iron boron magnetic bodies, every block of neodymium iron
The top of boron magnet 2 is fixedly connected with a contact 1, and the bottom of every piece of neodymium iron boron magnetic body is fixedly connected with a yoke 3, two yokes 3
Between connected by the handspike 4, contact 1, yoke 3 and the handspike 4 are made by soft iron.In the utility model, two pieces of neodymium-iron-borons
Body and respective contact and yoke form a pair of N poles neodymium iron boron magnetic bodies and S poles neodymium iron boron magnetic body.
Neodymium iron boron magnetic body in the utility model has superpower magnetic force, and magnetic force can reach 600 times of own wt, meet 177N
Lifting force only need 35g, therefore volume can be made small, and corresponding weight is also very light.
In the utility model, for that can adjust the distance between two magnetic poles, by rotatable between yoke 3 and the handspike 4
Formula bolt 5 connects.Not damage tested magnetic conductor in detection process, led also for that can facilitate upon completion of the assays from tested
Removed on magnet, the top of contact 1 of the present utility model is arranged to ramp structure, and the inclined-plane of two contacts is oppositely arranged.
Before the utility model is detected, according to the planform of tested magnetic conductor, adjusted by regulating rotating type bolt
The angle of two magnetic poles, to adapt to testing requirements；Then two contacts are attached at tested magnetic conductor, the utility model can be in neodymium iron
The lower absorption of strong magnetic attraction effect of boron magnet is on tested magnetic conductor surface；Apply magnetic flaw detection ink on tested magnetic conductor surface again, carry out
Observation.
Claims (4)
1. portable permanent-magnetic field detector, it is characterised in that：Including N poles neodymium iron boron magnetic body and S poles neodymium iron boron magnetic body, every piece of neodymium
Iron boron magnet（2）Top be fixedly connected with a contact（1）, the bottom of every piece of neodymium iron boron magnetic body is fixedly connected with a yoke（3）,
Two yoke（3）Between pass through the strip handspike（4）Connection；Two pieces of neodymium iron boron magnetic bodies and respective contact and yoke are formed
A pair of N poles neodymium iron boron magnetic bodies and S poles neodymium iron boron magnetic body.
2. portable permanent-magnetic field detector according to claim 1, it is characterised in that：The yoke（3）With the handspike（4）
Between pass through rotary type bolt（5）Connection.
3. portable permanent-magnetic field detector according to claim 1, it is characterised in that：The contact（1）Top set
Ramp structure is set to, the inclined-plane of two contacts is oppositely arranged.
4. the portable permanent-magnetic field detector according to any one of claims 1 to 3, it is characterised in that：The contact
（1）, yoke（3）And the handspike（4）It is made by soft iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426564.0U CN206725738U (en) | 2017-04-21 | 2017-04-21 | Portable permanent-magnetic field detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426564.0U CN206725738U (en) | 2017-04-21 | 2017-04-21 | Portable permanent-magnetic field detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206725738U true CN206725738U (en) | 2017-12-08 |
Family
ID=60506184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426564.0U Active CN206725738U (en) | 2017-04-21 | 2017-04-21 | Portable permanent-magnetic field detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206725738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113208A (en) * | 2021-04-12 | 2021-07-13 | 西红柿科技（武汉）有限公司 | Adjustable magnetic bridge for intelligent magnetic flux leakage detection |
-
2017
- 2017-04-21 CN CN201720426564.0U patent/CN206725738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113208A (en) * | 2021-04-12 | 2021-07-13 | 西红柿科技（武汉）有限公司 | Adjustable magnetic bridge for intelligent magnetic flux leakage detection |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Hebei Jiantou energy science and Technology Research Institute Co.,Ltd. Address before: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |