CN2063642U - Permanent magnet magnetic powder crack detector - Google Patents
Permanent magnet magnetic powder crack detector Download PDFInfo
- Publication number
- CN2063642U CN2063642U CN 89221644 CN89221644U CN2063642U CN 2063642 U CN2063642 U CN 2063642U CN 89221644 CN89221644 CN 89221644 CN 89221644 U CN89221644 U CN 89221644U CN 2063642 U CN2063642 U CN 2063642U
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- magnetic
- permanent magnet
- magnetic powder
- utility
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Abstract
The utility model relates to a permanent magnet magnetic powder crack detector which mainly solves the defects that the existing electromagnetic magnetic powder crack detector has bulky equipment and must depend on the electric energy. The utility model has the advantages of flexible operation, convenient operation, small size, light weight and convenient portability. The utility model has the essential technique that a magnetic conducting circular stick is connected with two magnetic conducting sleeve bodies, each magnetic conducting sleeve body is fixedly provided with two opposite non-magnetic conducting strip bodies, and the inner part of each magnetic conducting sleeve body is provided with a rotatable permanent magnet. When the permanent magnets are rotated to different positions, the utility model can realize to exert or eliminate the magnetic field for workpieces without a power supply. The permanent magnet magnetic powder crack detector can sensitively discover exiguous defects of the workpieces, and the permanent magnet magnetic powder crack detector has wider range of use.
Description
The utility model belongs to a kind of instrument that workpiece is detected a flaw, and particularly utilizes permanent magnetic field workpiece to be magnetized the magnetic powder flaw detector of flaw detection.
Magnetic powder inspection is a kind of easy method intuitively that is used for checking ferromagnetic materials surface and near surface flaw, and it is widely used in industries such as machine-building, electric power, oil, chemical industry.The domestic electromagnet that generally all adopts carries out magnetic powder inspection at present, equipment is heavy than benzene, for the high bulk container face of weld of general scene, field, chemical system and the workpiece flaw detection at narrow space place certain limitation is arranged, and will be equipped with power supply, the influence that is often had a power failure.
The purpose of this utility model is the problem at above-mentioned existence, and a kind of magneto magnetic powder inspection instrument is provided, and it can find the microscopic defect on ferrimagnet surface and nearly surface delicately, and do not need power supply, it is little to have volume, in light weight, uses easy to carry, flexible characteristic.
The purpose of this utility model is achieved in that it is made up of Nd-Fe-B permanent magnet, magnetic conductive cover, yoke and magnetic conductive round roller.On magnetic conductive round roller, two magnetic conductive covers are arranged by the binding of magnetic conduction connecting piece; Be fixed with the non-magnetic conduction bar of relative twice body on the magnetic conductive cover; Rotating Nd-Fe-B permanent magnet is housed in the magnetic conductive cover; The bottom of body is fixed with two arc-shaped guide rails, and yoke is plugged on the guide rail.
Gap and the fastening bolt of adjusting the binding tightness arranged on the top of magnetic conduction connecting piece, and loosening fastening bolt can be adjusted two distances between the magnetic conductive cover.On Nd-Fe-B permanent magnet, be fixed with knob, permanent magnet is rotated, two arc-shaped guide rails and yoke junction are oat tail groove structure, therefore can adjust the position of yoke on guide rail, to adapt to the surface configuration of measured workpiece, the end surface shape of yoke is the multiple difformity that adapts to surface of the work.
Using method: adjust distance and the position of yoke on guide rail between two magnetic conductive covers, hold magnetic conductive round roller, two yokes are closely contacted with workpiece, turn knob and make permanent magnet pole vertical with workpiece, then workpiece is applied in a very strong permanent magnetic field, presses the conventional method flaw detection of magnetic flaw detection then, flaw detection finishes, with 90 ° of knob, then the external magnetic field of workpiece disappears, and defectoscope can easily take off from workpiece.
Advantage of the present utility model: can find the microscopic defect on ferromagnetic materials surface and nearly surface delicately, usable range broad and convenient does not need power supply, and volume is little, and is in light weight, is easy to carry.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model synoptic diagram.
Fig. 2 is the utility model front elevation.
Fig. 3 is the utility model side view.
See Fig. 1～3, the two ends of the magnetic conductive round roller 6 of irony install the connecting piece 5 of irony, and gap and fastening bolt 8 are arranged at the connect apertures top of connecting piece 5, and the magnetic conductive cover 3 of the fixedly connected irony in connecting piece 5 lower ends is fixed with copper body 9 of relative twice on the magnetic conductive cover 3.The Nd-Fe-B permanent magnet 1 of band knob 2 is housed in the magnetic conductive cover 3.The bottom that two arc-shaped guide rails 7 are fixed in magnetic conductive cover 3 constitutes dovetail groove, and yoke 4 is plugged on the dovetail groove of guide rail 7.
Claims (3)
1, a kind of magneto magnetic powder flaw detector, it is characterized in that: on magnetic conductive round roller, two magnetic conductive covers are arranged by the binding of magnetic conduction web member, be fixed with the non-magnetic conduction bar of relative twice body on the magnetic conductive cover, rotating Nd-Fe-B permanent magnet is housed in the body, the bottom of body is fixed with two arc-shaped guide rails, and yoke is plugged on the guide rail.
2, magnetic powder flaw detector according to claim 1 is characterized in that: the junction of two arc-shaped guide rails and yoke is an oat tail groove structure.
3, magnetic powder flaw detector according to claim 1 is characterized in that: magnetic conduction web member top has adjusts gap and the fastening bolt that links tightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221644 CN2063642U (en) | 1989-12-21 | 1989-12-21 | Permanent magnet magnetic powder crack detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221644 CN2063642U (en) | 1989-12-21 | 1989-12-21 | Permanent magnet magnetic powder crack detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2063642U true CN2063642U (en) | 1990-10-10 |
Family
ID=4876075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89221644 Withdrawn CN2063642U (en) | 1989-12-21 | 1989-12-21 | Permanent magnet magnetic powder crack detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2063642U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543198A (en) * | 2013-11-05 | 2014-01-29 | 广西壮族自治区特种设备监督检验院 | Rotary control magnet yoke type permanent magnet flaw detector |
| CN104040328A (en) * | 2012-01-06 | 2014-09-10 | 阿尔斯通技术有限公司 | Apparatus and method for non-destructive inspections |
| 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 |
| CN104742993A (en) * | 2015-04-08 | 2015-07-01 | 南通理工学院 | Triangular crawler type wall climbing robot |
| CN104760628A (en) * | 2015-04-08 | 2015-07-08 | 南通理工学院 | Triangular crawler wheel device |
| CN113109421A (en) * | 2021-04-19 | 2021-07-13 | 北京工业大学 | Micro-magnetic nondestructive detection sensor suitable for concave curved surface |
| 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 |
-
1989
- 1989-12-21 CN CN 89221644 patent/CN2063642U/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040328A (en) * | 2012-01-06 | 2014-09-10 | 阿尔斯通技术有限公司 | Apparatus and method for non-destructive inspections |
| CN103543198A (en) * | 2013-11-05 | 2014-01-29 | 广西壮族自治区特种设备监督检验院 | Rotary control magnet yoke type permanent magnet flaw detector |
| 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 |
| CN104742993A (en) * | 2015-04-08 | 2015-07-01 | 南通理工学院 | Triangular crawler type wall climbing robot |
| CN104760628A (en) * | 2015-04-08 | 2015-07-08 | 南通理工学院 | Triangular crawler wheel device |
| CN113109421A (en) * | 2021-04-19 | 2021-07-13 | 北京工业大学 | Micro-magnetic nondestructive detection sensor suitable for concave curved surface |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |