CN204065017U - A kind of crossed yoke magnetic powder inspection device - Google Patents
A kind of crossed yoke magnetic powder inspection device Download PDFInfo
- Publication number
- CN204065017U CN204065017U CN201420083335.XU CN201420083335U CN204065017U CN 204065017 U CN204065017 U CN 204065017U CN 201420083335 U CN201420083335 U CN 201420083335U CN 204065017 U CN204065017 U CN 204065017U
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- Prior art keywords
- speed
- alarm
- crossed yoke
- grating
- test
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- 238000007689 inspection Methods 0.000 title claims abstract description 9
- 239000006247 magnetic powder Substances 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 230000005415 magnetization Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a kind of crossed yoke magnetic powder inspection device, it comprising crossed yoke defectoscope, to test the speed alarm or photoelectric digital tester for completing the grating tested the speed, and to test the speed the support of alarm or photoelectric digital knotmeter for connecting crossed yoke defectoscope and grating; Described support adopts spring suppport or rubber standoff.The utility model is provided with grating test alarm or photoelectric digital knotmeter, it can control the translational speed of crossed yoke defectoscope, realize display or overspeed alarming function, the limit value making Scanning speed be no more than standard to specify, avoid because crossed yoke translational speed comes to cause magnetization not enough and cause the undetected of defect, making measurement result more accurate.
Description
Technical field
The utility model relates to a kind of crossed yoke magnetic powder inspection device.
Background technology
When in JB/T4730-2005 " bearing device Non-Destructive Testing " standard, regulation uses crossed yoke method to carry out dragging detection continuously, detection speed should be tried one's best evenly, generally should not be greater than 4m/min.Once exceed this velocity constraint in detection, then probably cause the undetected of defect because magnetizing deficiency.This is due to when adopting crossed yoke rotating magnetic field magnetic powder flaw detector to detect, that magnetization limit sprinkling magnetic flaw detection ink is moved on limit, the speed of continuous dragging is too fast, can cause on the one hand the sprinkling of magnetic flaw detection ink can not with good the coordinating of the translational speed of crossed yoke, cause magnetizing time too short on the other hand, the magnetic domain of inside workpiece is made to have little time to turn to, thus cause magnetic efficiency to be deteriorated, detection sensitivity reduces, especially in current live practical application, crossed yoke method all adopts manual inspection, the speed that yoke drags controls with the experience of testing staff entirely, Detection job is difficult to effectively be ensured.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, easy to use, the reliable crossed yoke failure detector of Detection job.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of crossed yoke magnetic powder inspection device, its gordian technique is: it comprising crossed yoke defectoscope, to test the speed alarm or photoelectric digital tester for completing the grating tested the speed, and to test the speed the support of alarm or photoelectric digital knotmeter for connecting crossed yoke defectoscope and grating;
Described support adopts spring suppport or rubber standoff.
The described grating alarm that tests the speed has speed measuring module and alarm module to form, and the output terminal of described speed measuring module is through the input end of signal wire module taking alarm.
Principle of the present utility model is as follows:
The utility model utilizes photoelectric digital tester or grating to test the speed the translational speed of alarm crossed yoke when measuring manual cross-magnetizing, the real-time translational speed gathered is shown or this signal is inputed to alarm, the omnidistance translational speed measuring crossed yoke defectoscope, can overspeed alarming be set, report to the police if occur, then testing staff reduces the translational speed of device, and rechecks the inspection implemented after warning.
The utility model should possess following condition:
(1) selection of velocity-measuring system:
Should preferably precision is high, volume is little, weight the is little alarm that tests the speed, select grating to test the speed alarm or adopt photoelectric digital knotmeter herein.Its principle is in rotating shaft, install coaxial grating wheel, and light transmitting and optical receiver are equipped with in grating wheel two ends, during work, optical transmitting set is in emission state always, the light signal that the rotation of grating wheel makes receiver receive is discontinuous light pulse, and axle rotates faster, and pulsed frequency is higher.Receiver is converted into electric signal light pulse, i.e. digital pulse signal, and processor is according to this pulsed frequency, calculate the rotating speed of rotating shaft, and then the translational speed of probe can be drawn, the digital pulse signal obtained by receiver is sent to overspeed alarming module simultaneously, can overspeed alarming be realized.Require that the processing power of velometer frequency acquisition and processor should meet the acquisition and processing of the translational speed to probe herein.Whether the translational speed can being known probe by this device staff while detecting is transfinited.
(2) support:
Support is connected with the reliable of crossed yoke defectoscope for realize testing the speed alarm or photoelectric digital knotmeter, its magnetization end can be installed on yoke handle, also can be installed in arbitrary yoke, test the speed alarm and workpiece close contact for principle with the movement and magnetization range that the do not affect crossed yoke defectoscope grating that can ensure again to test the speed.
The beneficial effect adopting technique scheme to produce is: the utility model is provided with grating test alarm or photoelectric digital knotmeter, it can control the translational speed of crossed yoke defectoscope, realize display or overspeed alarming function, the limit value making Scanning speed be no more than standard to specify, avoid because crossed yoke translational speed comes to cause magnetization not enough and cause the undetected of defect, making measurement result more accurate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, 1, crossed yoke defectoscope; 2, support; 3, grating tests the speed alarm or photoelectric digital knotmeter; 4, examined workpiece.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See accompanying drawing 1, the utility model comprises three parts, and test the speed warning system: for measuring the translational speed of single unit system, and can arrange translational speed gate further, and actual detection speed exceedes gate limit value, then report to the police.Photoelectric digital knotmeter or grating can be adopted to test the speed alarm.Wherein the grating alarm that tests the speed is made up of speed measuring module (this test module can adopt grating test instrument) and alarm module (can adopt existing alarm).
Cross-magnetizing system: can select current all types of crossed yoke magnetic powder flaw detector, can meet the magnetization specification needed for detecting.
Mounting system: for the warning system that realizes testing the speed with the fixing of cross-magnetizing system and be connected.Spring suppport can be adopted.
During use, step is as follows:
1, detection system is connected: test the speed grating alarm 3(or photoelectric digital knotmeter) be connected with normal crossing yoke defectoscope 1 by support 2.Realizing crossed yoke defectoscope 1 and grating to test the speed alarm 3(or photoelectric digital knotmeter) moving parameter is consistent.
2, the warning system that tests the speed is checked, and alarm velocity gate limit value is set.
3, the detected parameters such as crossed yoke defectoscope Front distance are checked in adjustment.
4, detect: probe system detects at examined workpiece 4, grating tests the speed alarm 3(or photoelectric digital knotmeter) the omnidistance translational speed measuring crossed yoke defectoscope 1, when actual detection speed exceedes gate limit value, then send warning.
It should be noted that, grating given by this example tests the speed alarm 3(or photoelectric digital knotmeter), the type of support 2, arrange it is only example, on normal crossing yoke defectoscope 1, which kind of no matter adopts test the speed instrument or adopt which kind of Scanning speed alarm form and rack form, its core methed is all that monitoring crossed yoke flaw detection translational speed makes it to be no more than limit value, all should be encompassed in right of the present utility model.
Claims (2)
1. a crossed yoke magnetic powder inspection device, it is characterized in that: it comprising crossed yoke defectoscope (1), to test the speed alarm or photoelectric digital tester (3) for completing the grating tested the speed, and to test the speed the support (2) of alarm or photoelectric digital knotmeter (3) for connecting crossed yoke defectoscope (1) and grating;
Described support (2) adopts spring suppport or rubber standoff.
2. crossed yoke magnetic powder inspection device according to claim 1, is characterized in that: the described grating alarm (3) that tests the speed has speed measuring module and alarm module to form, and the output terminal of described speed measuring module is through the input end of signal wire module taking alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083335.XU CN204065017U (en) | 2014-02-26 | 2014-02-26 | A kind of crossed yoke magnetic powder inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083335.XU CN204065017U (en) | 2014-02-26 | 2014-02-26 | A kind of crossed yoke magnetic powder inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065017U true CN204065017U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083335.XU Expired - Fee Related CN204065017U (en) | 2014-02-26 | 2014-02-26 | A kind of crossed yoke magnetic powder inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459487A (en) * | 2018-12-19 | 2019-03-12 | 中国特种设备检测研究院 | A kind of adaptive excitation unit |
-
2014
- 2014-02-26 CN CN201420083335.XU patent/CN204065017U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459487A (en) * | 2018-12-19 | 2019-03-12 | 中国特种设备检测研究院 | A kind of adaptive excitation unit |
| CN109459487B (en) * | 2018-12-19 | 2024-04-05 | 中国特种设备检测研究院 | Self-adaptive excitation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |