CN202372475U - Magnetic particle flaw detector for rail car draft sill - Google Patents
Magnetic particle flaw detector for rail car draft sill Download PDFInfo
- Publication number
- CN202372475U CN202372475U CN2011204437601U CN201120443760U CN202372475U CN 202372475 U CN202372475 U CN 202372475U CN 2011204437601 U CN2011204437601 U CN 2011204437601U CN 201120443760 U CN201120443760 U CN 201120443760U CN 202372475 U CN202372475 U CN 202372475U
- Authority
- CN
- China
- Prior art keywords
- circumferential
- longitudinal
- coils
- coil
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to a magnetic particle flaw detector for a rail car draft sill, which includes a PIC control system, at least three sets of transformers, four longitudinal coils and four circumferential coils, wherein the transformers are connected with the longitudinal coils and the circumferential coils respectively. The detector disclosed by the utility model adopts the detection method of entire energization, magnetic induction and one-time multi-path resultant magnetization (circumferential energization induction, longitudinal coil induction and auxiliary yoke method), is equipped with an undercurrent automatic alarming and detecting circuit to avoid detection failure, solves the difficult problem of blind zone, realizes online one man operation, can finish the one-time multi-path resultant magnetization detection process, at the same time, prints a detection report, and is networked with the HMIS, which covers transportation, assembly, control and acceptance, of the Ministry of Railways in a real time manner.
Description
Technical field
The utility model relates to a kind of motor-car draw beam failure detector, particularly motor-car draw beam magnaflux.
Background technology
After the ferrimagnet workpiece is magnetized; When there is defective in workpiece; Cause the discontinuous of magnetic field, make the magnetic line of force on surface of the work and nearly surface local distortion take place and produce stray field, absorption is applied to the magnetic of surface of the work; Under suitable illumination, form visual visible magnetic trace, thereby show position, size, shape and the order of severity of workpiece, defect.Magnaflux is a kind of non-destructive detecting device of making based on above principle.Domestic and international existing motor-car draw beam class checkout equipment, the effective magnetic field that magnetizes that generally adopts the power supply of interchange or direct current list kind to produce, surperficial skin effect is poor; It is low that inwall detects the sensitivity of manual spray; Usable range is narrow, the lifting observation is dangerous, and the one man operation is inconvenient, observes easy omission etc.Current, magnetic powder inspection method at home and abroad each industrial circle has all obtained using widely.The ultimate principle that magnetic detects is: when ferrimagnet was magnetized in magnetic field, material surface can make local magnetoconductivity change with the defective or the structural state variation on nearly surface, that is the magnetic resistance increase, thereby the magnetic flux in the magnetic circuit is distorted.Part magnetic flux directly passes through defective, and a part of magnetic flux is walked around defective at material internal, and some magnetic flux can leave material surface, walks around defective through air and gets into defective more again, therefore forms stray field at material surface.In general, surface crack is dark more, and the amplitude that leakage flux runs off material surface is high more, and is linear basically between them.At the stray field place, the material surface because the magnetic line of force is come in and gone out and form the two poles of the earth (S, the N utmost point) in the defective both sides, if when on this surface, spraying tiny ferromagnetic powder, place, surface leakage magnetic field can adsorb magnetic and form the magnetic trace, demonstrates defect shape.Draw beam is a crucial load bearing component in the rail vehicle car body underframe, because the draw beam kind is many, complex-shaped, connects chamber structure and is difficult to be magnetized.
The utility model content
The purpose of the utility model just is to provide a kind of respond well motor-car draw beam magnaflux.The utility model adopts whole energising, logical magnetic induction; Disposable multiway resultant magnetization detection method (inductive method of circumferentially switching on, longitudinal coil inductive method, auxiliary yoke method) is furnished with the automatic alarm detection circuit of undercurrent, in order to avoid omission; Solved a difficult problem that has the blind area; Realize online one man operation, can accomplish disposable multiway resultant magnetization testing process, print examining report simultaneously.
The purpose of the utility model can realize through following measure:
The motor-car draw beam magnaflux of the utility model comprises PIC control system, at least three group transformers, four longitudinal coils and four circumferential coils; Transformer connects longitudinal coil and circumferential coil respectively.
Preferably, said transformer is an AC transformer.
Preferably, said transformer is three groups.
Preferably, said longitudinal coil is four.
Preferably, said circumferential coil is four.
Preferably, said circumferential coil and longitudinal coil are toroid winding.
The utility model adopts whole energising, logical magnetic induction; Disposable multiway resultant magnetization detection method (inductive method of circumferentially switching on, longitudinal coil inductive method, auxiliary yoke method) is furnished with the automatic alarm detection circuit of undercurrent, in order to avoid omission; Solved a difficult problem that has the blind area; Realize online one man operation, can accomplish disposable multiway resultant magnetization testing process, print examining report simultaneously.The utility model adopts PLC control with reference to U.S. MIL, german standard din, three groups of super-large current isolating transformer power supplies; Different electric currents are given many group toroid windings, produce long screwed pipe externally-applied magnetic field, again through adding toroid winding in the group on the circumferential magnetization intersection bar magnet; Form multidirectional magnetization simultaneously, produce compound effective magnetic field and magnetize twice, simultaneously inside and outside automatic spray adopts automatic damped method to accomplish demagnetization after three seconds; Adopt stereo rotating observation element all faces of inspection; Under the standard fluorescence UV-lamp, 15/50 test piece of the clear demonstration of comprehensive ability A type is accomplished magnetic powder inspection and is detected overall process.
Description of drawings
Fig. 1 is that motor-car draw beam magnaflux excitation supply connects schematic diagram.
Fig. 2 is that motor-car draw beam magnaflux excitation supply connects schematic diagram.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing.
Embodiment
The motor-car draw beam magnaflux of present embodiment comprises PIC control system, at least three group transformers, at least four longitudinal coils and four circumferential coils, and transformer connects longitudinal coil and circumferential coil respectively.Preferably, said transformer is an AC transformer.Preferably, said transformer is three groups.Preferably, said longitudinal coil is four.Preferably, said circumferential coil is four.Preferably, said circumferential coil and longitudinal coil are toroid winding.
In conjunction with accompanying drawing the motor-car draw beam magnaflux of present embodiment is set forth; Like Fig. 1, shown in Figure 2, train traction beam magnaflux comprises AC transformer 1, AC transformer 2, AC transformer 3, longitudinal coil 4, longitudinal coil 5, longitudinal coil 6, longitudinal coil 7, axial electrode 8, circumferentially coil 9, circumferential coil 10, circumferential coil 11, circumferential coil 12 are formed.Like Fig. 1, shown in Figure 2: AC transformer 1 links to each other with axial electrode 8; AC transformer 2 links to each other with longitudinal coil 4, longitudinal coil 5, longitudinal coil 6, longitudinal coil 7; AC transformer 3 links to each other with auxiliary yoke 9, auxiliary yoke 10, auxiliary yoke 11, auxiliary yoke 12; Form multidirectional magnetization, produce compound effective magnetic field towards magnetizing repeatedly.The utility model adopts whole energising magnetic conduction to add induction; Disposable multiway resultant magnetization detection method (inductive method of circumferentially switching on, longitudinal coil inductive method, auxiliary yoke method); Is furnished with the automatic alarm detection circuit of undercurrent, in order to avoid omission has solved a difficult problem that has the blind area; Realize that online one man operation can accomplish disposable multiway resultant magnetization testing process, prints examining report simultaneously.The utility model adopts PLC control with reference to U.S. MIL, german standard din, three groups of super-large current isolating transformer power supplies; Different electric currents are given many group toroid windings, produce long screwed pipe externally-applied magnetic field, again through adding toroid winding in the group on the circumferential magnetization intersection bar magnet; Form multidirectional magnetization simultaneously, produce compound effective magnetic field towards magnetizing twice, simultaneously inside and outside automatic spray; Automatically damped method completion demagnetization after three seconds is adopted stereo rotating observation element all faces of inspection, under the standard fluorescence UV-lamp; The overall process that magnetic powder inspection detects is accomplished in 15/50 test piece of the clear demonstration of comprehensive ability A type.
Claims (6)
1. a motor-car draw beam magnaflux is characterized in that: comprise PIC control system, three group transformers, four longitudinal coils and four circumferential coils at least; Transformer connects longitudinal coil and circumferential coil respectively.
2. motor-car draw beam magnaflux according to claim 1 is characterized in that: said transformer is an AC transformer.
3. motor-car draw beam magnaflux according to claim 2 is characterized in that: said transformer is three groups.
4. motor-car draw beam magnaflux according to claim 3 is characterized in that: said longitudinal coil is four.
5. motor-car draw beam magnaflux according to claim 3 is characterized in that: said circumferential coil is four.
6. motor-car draw beam magnaflux according to claim 3 is characterized in that: said circumferential coil and longitudinal coil are toroid winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204437601U CN202372475U (en) | 2011-11-10 | 2011-11-10 | Magnetic particle flaw detector for rail car draft sill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204437601U CN202372475U (en) | 2011-11-10 | 2011-11-10 | Magnetic particle flaw detector for rail car draft sill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372475U true CN202372475U (en) | 2012-08-08 |
Family
ID=46596172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204437601U Expired - Fee Related CN202372475U (en) | 2011-11-10 | 2011-11-10 | Magnetic particle flaw detector for rail car draft sill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323521A (en) * | 2013-05-31 | 2013-09-25 | 中国一拖集团有限公司 | Collocation method with AC-DC longitudinal closed-circuit magnetization function and flaw detection machine |
| CN106404894A (en) * | 2016-08-29 | 2017-02-15 | 江苏赛福探伤设备制造有限公司 | Magnetic particle flaw detector for irregular parts |
| CN116087322A (en) * | 2023-04-10 | 2023-05-09 | 莱州新忠耀机械有限公司 | Magnetic powder inspection method and auxiliary tool for low-temperature traction transmission box body of high-speed railway vehicle |
-
2011
- 2011-11-10 CN CN2011204437601U patent/CN202372475U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323521A (en) * | 2013-05-31 | 2013-09-25 | 中国一拖集团有限公司 | Collocation method with AC-DC longitudinal closed-circuit magnetization function and flaw detection machine |
| CN103323521B (en) * | 2013-05-31 | 2016-09-21 | 中国一拖集团有限公司 | A kind of collocation method possessing alternating current-direct current longitudinally closed circuit magnetizing function and defectoscope |
| CN106404894A (en) * | 2016-08-29 | 2017-02-15 | 江苏赛福探伤设备制造有限公司 | Magnetic particle flaw detector for irregular parts |
| CN106404894B (en) * | 2016-08-29 | 2023-09-12 | 江苏赛福探伤设备制造有限公司 | Magnetic powder inspection machine for special-shaped parts |
| CN116087322A (en) * | 2023-04-10 | 2023-05-09 | 莱州新忠耀机械有限公司 | Magnetic powder inspection method and auxiliary tool for low-temperature traction transmission box body of high-speed railway vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201518014U (en) | Multifunctional portable magnetic particle defect detector | |
| CN202599903U (en) | Shaft type workpiece magnetic powder flaw detector | |
| CN202372475U (en) | Magnetic particle flaw detector for rail car draft sill | |
| CN103822967B (en) | Double excitation coil-conductor defect automatic flaw detection device and method of detection | |
| CN101806774A (en) | Method for compound magnetic powder flaw detection | |
| CN107424721A (en) | A kind of pipeline demagnetizer and its application based on permanent-magnet structure | |
| CN101593604B (en) | Workpiece demagnetizing method and workpiece demagnetizing device | |
| CN2924531Y (en) | Magnetic flux leakage defect detector | |
| CN104458899A (en) | Magnetic powder detection device and detection method for large nut forgings | |
| CN202372477U (en) | Large valve body magnetic powder inspection machine | |
| CN103728368A (en) | Crack detector used for rail parts | |
| CN103323521B (en) | A kind of collocation method possessing alternating current-direct current longitudinally closed circuit magnetizing function and defectoscope | |
| CN203365382U (en) | Artificial defect test block for steel bar magnetic powder inspection | |
| CN207542027U (en) | A kind of pipeline demagnetizer based on permanent-magnet structure | |
| CN207281004U (en) | Special-shaped coils wheel is to magnetic powder inspection device | |
| CN105548344B (en) | One kind being based on leakage field and faradic rail non-destructive testing device | |
| CN202794108U (en) | Testing device for magnetic powder inspection of steel pipe | |
| CN104614688B (en) | For the c-type sensor and its detection method of D.C. magnetic biasing dynamic magnetic-flux measurement | |
| CN204925036U (en) | Compound magnetization unit of pipe end inside and outside wall non -contact | |
| CN211043238U (en) | Axial magnetization mechanism of shaft pipe | |
| CN204462077U (en) | A kind of electromagnetic test system based on Hall sensor array | |
| CN104792860A (en) | Sensing type grenade probe for blind hole magnetic powder flaw detection | |
| CN114720552A (en) | Electromagnetic detection method for identifying defects of steel wire rope | |
| CN103412040A (en) | Steel tube broadband magnet yoke flaw detection method and apparatus thereof | |
| CN202693523U (en) | Demagnetizer of oil casing pipe magnetic flux leakage diagnostic machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20131110 |