CN103543198A - Rotary control magnet yoke type permanent magnet flaw detector - Google Patents
Rotary control magnet yoke type permanent magnet flaw detector Download PDFInfo
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- CN103543198A CN103543198A CN201310537380.8A CN201310537380A CN103543198A CN 103543198 A CN103543198 A CN 103543198A CN 201310537380 A CN201310537380 A CN 201310537380A CN 103543198 A CN103543198 A CN 103543198A
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- magnetic piece
- flaw detector
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Abstract
The invention provides a rotary control magnet yoke type permanent magnet flaw detector. The rotary control magnet yoke type permanent magnet flaw detector is composed of a strong magnetic piece, a soft magnetic piece, a non-magnetic piece, a detection foot, a knob switch, a pressing cover and a handle. The working principle is that the strong magnetic piece is rotated by the knob switch; when the knob switch is at an on state, the S pole and the N pole of the strong magnetic piece are located in the horizontal direction and are aligned to the soft magnetic piece, and the soft magnetic piece is magnetized to generate a magnet yoke and the detection foot has a strong magnetic force to meet the requirements of magnetic powder inspection; when the knob switch is at an off state, the S pole and the N pole of the strong magnetic piece are aligned to the non-magnetic piece in the upper and lower directions, the soft magnetic piece is not magnetized to generate the magnet yoke and the detection foot hardly has no magnetic force, so that a detector can easily take the detection foot off from a detected workpiece. The rotary control magnet yoke type permanent magnet flaw detector has the advantages of no power consumption, no electronic elements, simple structure, strong suction force, low residual magnetism, convenience in operation and safety and reliability.
Description
Technical field
The present invention relates to field of non destructive testing, especially a kind of control yoke formula permanent-magnet flaw detector that revolves.
Background technology
With the method for detection of magnetic particle indications workpiece, defect, be called magnetic powder inspection, due to its intuitive display, simple to operate, thereby make it become one of the most frequently used lossless detection method.Because the disconnected magnetic technology of the logical magnetic of permanent-magnet flaw detector is unresolved, during use, therefore cost compared with great strength and it could be taken off from detected workpiece, and easily scratch surface of the work, what therefore extensively adopt at present mostly is magnetic crack detector.But the necessary electricity consumption of magnetic crack detector, and instrument is valuable, easily damage, cable operated inconvenience in tow, inadaptable without electricity or the use of high-altitude dangerous situation.
Through retrieval, existing a kind of " Portable permanent-magnet shielding flaw detector " patented technology, the patent No. is 96251803.4, this patented technology is also failed really from fact solving logical magnetic, the disconnected magnetic technology of defectoscope forever, therefore the same with other permanent-magnet flaw detectors, it operates and deposits all very inconvenient.
Summary of the invention
Object of the present invention: for from fact solving the logical magnetic of defectoscope forever, disconnected magnetic technology, according to permanent-magnet hang, the principle of work of belt switch magnetic bases, a kind of control yoke formula permanent-magnet flaw detector that revolves has been proposed.
The present invention is achieved in that
A control yoke formula permanent-magnet flaw detector, forms by visiting pin, soft magnetism part, ferromagnetism part, rotary switch, gland, handgrip and non-magnetic member; Visit pin and be arranged on soft magnetism part bottom, ferromagnetism part is arranged in the middle of two soft magnetism parts, and two soft magnetism parts are separated by non-magnetic member, and gland is arranged on soft magnetism part, and handgrip is arranged on soft magnetism part top by handgrip sheet.
Yoke formula permanent-magnet flaw detector is controlled in described revolving, and it is characterized in that: rotary switch can be controlled strong magnetic part and do 90 degree rotations, makes soft magnetism part lead to magnetic, disconnected magnetic.
Advantage of the present invention: above-described a kind of control yoke formula permanent-magnet flaw detector that revolves, by rotary switch, rotate ferromagnetism part, when rotary switch is during on, the S utmost point of ferromagnetism part, the N utmost point in horizontal direction over against soft magnetism part, the soft magnetism part generation yoke that is magnetized, now visit pin and there is stronger magnetic force, meet the requirement of magnetic powder inspection, when rotary switch is during in of, the S utmost point of ferromagnetism part, the N utmost point is above-below direction over against non-magnetic member, the soft magnetism part generation yoke that is not magnetized, now visit pin and almost there is no magnetic force, testing staff can take off it easily from detected workpiece.Present technique has advantages of not electricity consumption, without electronic component, simple in structure, suction is strong, remanent magnetism is low, it is light, safe and reliable to operate.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is left view of the present invention.
Fig. 3 is cut-open view of the present invention.
Fig. 4 is component diagram of the present invention.
In figure, 1 is that spy pin, 2 is that soft magnetism part, 3 is that ferromagnetism part, 4 is that rotary switch, 5 is that gland, 6 is that handgrip, 61 is that handgrip sheet, 7 is non-magnetic member.
Embodiment
As shown in Figure 1, Figure 3, a kind of control yoke formula permanent-magnet flaw detector that revolves, forms by visiting pin 1, soft magnetism part 2, ferromagnetism part 3, rotary switch 4, gland 5, handgrip 6 and non-magnetic member 7; Visit pin 1 and be arranged on soft magnetism part 2 bottoms, ferromagnetism part 3 is arranged in the middle of two soft magnetism parts 2, and two soft magnetism parts 2 are separated by non-magnetic member 7, and gland 5 is arranged on soft magnetism part 2, and handgrip 6 is arranged on soft magnetism part 2 tops by handgrip sheet 61.
The described control yoke formula permanent-magnet flaw detector that revolves, is characterized in that: rotary switch 4 can be controlled strong magnetic part 3 and do 90 degree rotations, makes the logical magnetic of soft magnetism part 2, disconnected magnetic.
Claims (2)
1. revolve a control yoke formula permanent-magnet flaw detector, by visiting pin (1), soft magnetism part (2), ferromagnetism part (3), rotary switch (4), gland (5), handgrip (6) and non-magnetic member (7), form; Visit pin (1) and be arranged on soft magnetism part (2) bottom, ferromagnetism part (3) is arranged in the middle of two soft magnetism parts (2), two soft magnetism parts (2) are separated by non-magnetic member (7), it is upper that gland (5) is arranged on soft magnetism part (2), and handgrip (6) is arranged on soft magnetism part (2) top by handgrip sheet (61).
2. the control yoke formula permanent-magnet flaw detector that revolves according to claim 1, is characterized in that: rotary switch (4) can be controlled strong magnetic part (3) and do 90 degree rotations, makes soft magnetism part (2) lead to magnetic, disconnected magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537380.8A CN103543198A (en) | 2013-11-05 | 2013-11-05 | Rotary control magnet yoke type permanent magnet flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537380.8A CN103543198A (en) | 2013-11-05 | 2013-11-05 | Rotary control magnet yoke type permanent magnet flaw detector |
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| Publication Number | Publication Date |
|---|---|
| CN103543198A true CN103543198A (en) | 2014-01-29 |
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| CN201310537380.8A Pending CN103543198A (en) | 2013-11-05 | 2013-11-05 | Rotary control magnet yoke type permanent magnet flaw detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091679A (en) * | 2014-07-30 | 2014-10-08 | 爱德森（厦门）电子有限公司 | Flexible magnetic yoke device |
| CN104677982A (en) * | 2015-03-12 | 2015-06-03 | 天津阿斯米工程技术有限公司 | Rotational control magnet yoke type permanent magnet flaw detector and method using same for detecting flaw of workpiece |
| CN106525957A (en) * | 2015-09-15 | 2017-03-22 | 郝建国 | Wireless alternating-current electromagnetic yoke flaw detector |
| WO2021125187A1 (en) * | 2019-12-20 | 2021-06-24 | Ｊｆｅスチール株式会社 | Magnetic leakage inspection device and defect inspection method |
| CN117269296A (en) * | 2023-11-23 | 2023-12-22 | 南京分析仪器厂有限公司 | Internal convection thermomagnetic oxygen analyzer, magnetic device and detection circuit thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063642U (en) * | 1989-12-21 | 1990-10-10 | 李履平 | Permanent magnet magnetic powder crack detector |
| SU1605183A1 (en) * | 1988-05-17 | 1990-11-07 | Институт Электросварки Им.Е.О.Патона | Magnetizing device for magnetic flaw detection |
| CN2103812U (en) * | 1991-10-22 | 1992-05-06 | 机电部机械院可靠性中心 | Single-hand flaw detector for permanent magnetic powder |
| CN2115539U (en) * | 1991-11-21 | 1992-09-09 | 抚顺市稀土磁性材料厂 | Modulation permanent-magnet flaw detector |
| JP2005164423A (en) * | 2003-12-03 | 2005-06-23 | Ishikawajima Harima Heavy Ind Co Ltd | Magnetic flaw detection apparatus for wire rope, and pulley with magnetic flaw detection apparatus |
| CN201662559U (en) * | 2009-04-09 | 2010-12-01 | 北京国电电科院检测科技有限公司 | Synchronous permanent magnetic defect detector |
| EP2613143A1 (en) * | 2012-01-06 | 2013-07-10 | Alstom Technology Ltd | Apparatus and method for non-destructive inspections |
| CN203572804U (en) * | 2013-11-05 | 2014-04-30 | 广西壮族自治区特种设备监督检验院 | Permanent magnet flaw detector of rotary control magnet yoke type |
-
2013
- 2013-11-05 CN CN201310537380.8A patent/CN103543198A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1605183A1 (en) * | 1988-05-17 | 1990-11-07 | Институт Электросварки Им.Е.О.Патона | Magnetizing device for magnetic flaw detection |
| CN2063642U (en) * | 1989-12-21 | 1990-10-10 | 李履平 | Permanent magnet magnetic powder crack detector |
| CN2103812U (en) * | 1991-10-22 | 1992-05-06 | 机电部机械院可靠性中心 | Single-hand flaw detector for permanent magnetic powder |
| CN2115539U (en) * | 1991-11-21 | 1992-09-09 | 抚顺市稀土磁性材料厂 | Modulation permanent-magnet flaw detector |
| JP2005164423A (en) * | 2003-12-03 | 2005-06-23 | Ishikawajima Harima Heavy Ind Co Ltd | Magnetic flaw detection apparatus for wire rope, and pulley with magnetic flaw detection apparatus |
| CN201662559U (en) * | 2009-04-09 | 2010-12-01 | 北京国电电科院检测科技有限公司 | Synchronous permanent magnetic defect detector |
| EP2613143A1 (en) * | 2012-01-06 | 2013-07-10 | Alstom Technology Ltd | Apparatus and method for non-destructive inspections |
| CN203572804U (en) * | 2013-11-05 | 2014-04-30 | 广西壮族自治区特种设备监督检验院 | Permanent magnet flaw detector of rotary control magnet yoke type |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091679A (en) * | 2014-07-30 | 2014-10-08 | 爱德森（厦门）电子有限公司 | Flexible magnetic yoke device |
| CN104677982A (en) * | 2015-03-12 | 2015-06-03 | 天津阿斯米工程技术有限公司 | Rotational control magnet yoke type permanent magnet flaw detector and method using same for detecting flaw of workpiece |
| CN104677982B (en) * | 2015-03-12 | 2018-02-02 | 天津阿斯米工程技术有限公司 | It is a kind of to revolve control magnet yoke type permanent magnet flaw detector and carry out the method for workpiece flaw detection using it |
| CN106525957A (en) * | 2015-09-15 | 2017-03-22 | 郝建国 | Wireless alternating-current electromagnetic yoke flaw detector |
| WO2021125187A1 (en) * | 2019-12-20 | 2021-06-24 | Ｊｆｅスチール株式会社 | Magnetic leakage inspection device and defect inspection method |
| JP6908212B1 (en) * | 2019-12-20 | 2021-07-21 | Ｊｆｅスチール株式会社 | Leakage magnetic inspection equipment and defect inspection method |
| CN117269296A (en) * | 2023-11-23 | 2023-12-22 | 南京分析仪器厂有限公司 | Internal convection thermomagnetic oxygen analyzer, magnetic device and detection circuit thereof |
| CN117269296B (en) * | 2023-11-23 | 2024-01-30 | 南京分析仪器厂有限公司 | Internal convection thermomagnetic oxygen analyzer, magnetic device and detection circuit thereof |
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Application publication date: 20140129 |