CN101813668B - Wheel axle end surface flaw detection device and method - Google Patents
Wheel axle end surface flaw detection device and method Download PDFInfo
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- CN101813668B CN101813668B CN2010101488758A CN201010148875A CN101813668B CN 101813668 B CN101813668 B CN 101813668B CN 2010101488758 A CN2010101488758 A CN 2010101488758A CN 201010148875 A CN201010148875 A CN 201010148875A CN 101813668 B CN101813668 B CN 101813668B
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Abstract
The invention relates to a wheel axle end surface flaw detection device and a method. The method comprises the following steps: 1) installing the wheel axle end surface flaw detection device on the wheel axle end part by the positioning of the axial movable center and the adsorption of axial magnet; in four cylindrical probes of the wheel axle end surface flaw detection device, adjusting the cylindrical probe near the top end into a zero drift angle probe by a worm wheel and worm governor mechanism; 2) displaying the defect image of the cylindrical probe near the bottom end by B ultrasound; 3) respectively adjusting another two cylindrical probes into a clockwise drift angle probe and an anticlockwise probe by the worm wheel and worm governor mechanism; 4) comparing the defect imaged displayed by the B ultrasound with the image obtained by the zero drift angle probe, the clockwise drift angle probe and the anticlockwise probe, and determining the shape of the wheel axle end surface flaw. The invention has the beneficial effect that the flaw detection device can inhibit great quantity structural noise generated by the press mounting of bearings, reduce the possibility of missed detection and improve railway driving safety.
Description
Technical field
The present invention relates to a kind of wheel axle end surface flaw detection device and method.
Background technology
At present, when detection is positioned at the fatigue crack on bearing medial end axletree surface (compensating groove), usually to use probe measurement, known probe, its acoustic beam is positioned at the plane by axletree, can be described as zero drift angle probe.After axletree has press-fited bearing, with zero drift angle probe, detect and often occur having disturbed the identification to flaw indication by very strong construct noise, cause undetectedly, affect traffic safety.
Summary of the invention
The purpose of this invention is to provide a kind of wheel axle end surface flaw detection device and method, can reduce construct noise, improve the signal to noise ratio (S/N ratio) of Signal of Cracks, reduce undetected, use simultaneously the B ultrasonic mode to show crack image and the super mode display waveform of A, make the differentiation of crackle simple, directly perceived and easy row, the super signal of all A is by real-time storage, for ex-post analysis with recall.
the objective of the invention is to be achieved through the following technical solutions: a kind of form of the present invention is wheel axle end surface flaw detection device, comprise and visit the bar structure frame, the bottom end face of described spy bar structure frame is provided with along the ring-shaped magnet of visiting bar structure frame circle distribution, visit bar structure frame inside and be provided with axial rotor, it is top that the inside of axial rotor is provided with axial elasticity, the top of movable center is connected with spy bar structure frame by spring, around movable center, be evenly distributed with four cylindrical probes, on the outer wall of cylindrical probe, near top end, be provided with the turbine and worm governor motion, described turbine and worm governor motion comprises turbine and the worm screw that cooperatively interacts, wherein turbine is arranged on the cylindrical probe outer wall, worm screw is fixedly connected with axial rotor by bolt, the top of described cylindrical probe is provided with nut, between nut and cylindrical probe, be threaded connection.
another kind of form of the present invention is the wheel axle end surface flaw detection method, comprise the following steps: 1) absorption by the top location of axial elasticity and bar magnet is arranged on the wheel shaft end by wheel axle end surface flaw detection device, in four cylindrical probes of wheel axle end surface flaw detection device, by the turbine and worm governor motion, will be adjusted near the cylindrical probe on top zero drift angle probe, the incident angle of zero drift angle probe is the incident of known low-angle 9-12 degree, 2) cylindrical probe near bottom adopts B ultrasonic mode display defect image, 3) by the turbine and worm governor motion, the drift angle of two other cylindrical probe is adjusted into respectively to clockwise drift angle probe and counterclockwise drift angle probe, in order to adapt to the change in orientation of crackle, by clockwise drift angle probe and counterclockwise drift angle pop one's head in respectively Relative Zero drift angle probe to clockwise and counterclockwise be adjusted between the 25-30 degree, and the drift angle of drift angle probe and counterclockwise drift angle probe equates clockwise, this moment, the angle of acoustic beam and wheel axial plane was about the 7-9 degree, incident angle reduces the 0.5-1 degree than zero drift angle probe, can make clockwise drift angle probe, the detection interval of drift angle probe and zero drift angle probe is consistent counterclockwise, 4) the defect image while that the B ultrasonic mode is shown compares with the image that zero drift angle probe, clockwise drift angle probe and counterclockwise drift angle probe obtain, and determines the shape of wheel axle end surface defect.
In above-mentioned wheel axle end surface flaw detection method, described turbine and worm governor motion comprises turbine and the worm screw that cooperatively interacts, and wherein turbine is arranged on the outer wall of cylindrical probe, and worm screw is fixedly connected with axial rotor by bolt.
Beneficial effect of the present invention is: for a large amount of construct noises that produce after pressing bearing, failure detector can suppress noise, improves signal to noise ratio (S/N ratio), reduces undetected, the raising railway operation safety; Use simultaneously the B ultrasonic mode to show crack image and the super mode display waveform of A, make the differentiation of crackle simple, directly perceived and easy row, the super signal of all A is by real-time storage, for ex-post analysis with recall.
The accompanying drawing explanation
Below with reference to the accompanying drawings the present invention is described in further detail.
Fig. 1 is the cut-open view of wheel axle end surface flaw detection device of the present invention; Fig. 2 is the structural representation of the turbine and worm governor motion of wheel axle end surface flaw detection device of the present invention; Fig. 3 is the distribution schematic diagram of the probe of wheel axle end surface flaw detection device of the present invention.
In figure: 1, visit the bar structure frame; 2, ring-shaped magnet; 3, axial rotor; 4, movable center; 5, spring; 6, cylindrical probe; 7, turbine and worm governor motion; 8, turbine; 9, worm screw; 10, nut.
Embodiment
as Figure 1-3, a kind of form of the present invention is wheel axle end surface flaw detection device, comprise and visit bar structure frame 1, the bottom end face of described spy bar structure frame 1 is provided with along the ring-shaped magnet 2 of visiting bar structure frame circle distribution, visit bar structure frame 1 inside and be provided with axial rotor 3, the inside of axial rotor 3 is provided with axial elasticity top 4, the top of axial elasticity top 4 is connected with spy bar structure frame 1 by spring 5, around axial elasticity top 4, be evenly distributed with four cylindrical probes 6, on the outer wall of cylindrical probe 6, near top end, be provided with turbine and worm governor motion 7, described turbine and worm governor motion 7 comprises turbine 8 and the worm screw 9 that cooperatively interacts, wherein turbine 8 is arranged on the outer wall of cylindrical probe 6, worm screw 9 is fixedly connected with axial rotor 3 by bolt, outer six side's adjustment holes are arranged on worm screw 9, use outer six side's screwdrivers can rotary worm, thereby regulate the drift angle of cylindrical probe 6, the top of described cylindrical probe 6 is provided with nut 10, between nut 10 and cylindrical probe 6, be threaded connection.
another kind of form of the present invention is the wheel axle end surface flaw detection method, comprise the following steps: 1) by the location of axial elasticity top 4 and the absorption of ring-shaped magnet 2, wheel axle end surface flaw detection device is arranged on to the wheel shaft end, in four cylindrical probes 6 of wheel axle end surface flaw detection device, by turbine and worm governor motion 7, will be adjusted near the cylindrical probe 6 on top zero drift angle probe, the incident angle of zero drift angle probe is the incident of known low-angle 9-12 degree, 2) cylindrical probe 6 near bottom adopts B ultrasonic mode display defect image, 3) by turbine and worm governor motion 7, the drift angle of two other cylindrical probe 6 is adjusted into respectively to clockwise drift angle probe and counterclockwise drift angle probe, in order to adapt to the change in orientation of crackle, by clockwise drift angle probe and counterclockwise drift angle pop one's head in respectively Relative Zero drift angle probe to clockwise and counterclockwise be adjusted between the 25-30 degree, and the drift angle of drift angle probe and counterclockwise drift angle probe equates clockwise, this moment, the angle of acoustic beam and wheel axial plane was about the 7-9 degree, incident angle reduces the 0.5-1 degree than zero drift angle probe, can make clockwise drift angle probe, the detection interval of drift angle probe and zero drift angle probe is consistent counterclockwise, 4) the defect image while that the B ultrasonic mode is shown compares with the image that zero drift angle probe, clockwise drift angle probe and counterclockwise drift angle probe obtain, and determines the shape of wheel axle end surface defect.
In above-mentioned wheel axle end surface flaw detection method, described turbine and worm governor motion (7) comprises turbine (8) and the worm screw (9) that cooperatively interacts, wherein turbine (8) is arranged on the outer wall of cylindrical probe (6), and worm screw (9) is fixedly connected with axial rotor (3) by bolt.
when specific works, in the axletree end, install one and visit bar structure frame 1, visit bar structure frame 1 end face and be inlaid with ring-shaped magnet 2, make to visit bar structure frame 1 end face and axle end face and inhale and be adjacent to, visit bar structure frame 1 end face center an axial rotor 3 is set, axial rotor 3 can rotate around axle axis, and by spring 5, axial rotor 3 end faces and bearing face being adjacent to, it is top 4 that axial elasticity is equipped with at axial rotor 3 centers, makes to visit bar structure frame 1 and axletree coaxial positioning, axial rotor 3 end faces arrange the probe mounting hole of four equal angles circle distribution, a cylindrical probe 6 is installed in each hole, cylindrical probe 6 can be around self axis rotation, cylindrical probe 6 is drawn line end turbine and worm governor motion 7 is housed, be used for the anglec of rotation (drift angle) of minute adjustment cylindrical probe 6 around self axis, by regulating, can make acoustic beam off-axis plane, when being positioned at axial plane, acoustic beam is called zero drift angle, the cylindrical probe 6 at top adopts zero drift angle probe, the probe incident angle adopts known low-angle (9-12 degree) incident, two cylindrical probes 6 of top cylindrical probe 6 belows adopt the drift angle attitude, be respectively clockwise drift angle probe and counterclockwise drift angle probe, adopting opposite drift angle attitude is in order to adapt to the change in orientation of crackle, drift angle is adjusted between the 25-30 degree, this moment, the angle of acoustic beam and axial plane was about the 7-9 degree, incident angle reduces the 0.5-1 degree than zero drift angle probe, it is in order to make the drift angle probe consistent with the detection interval of zero drift angle probe that incident angle reduces the 0.5-1 degree, through test find this moment Signal of Cracks and construct noise between signal to noise ratio (S/N ratio) better, more than with zero drift angle probe, comparing and can improving 12DB, cylindrical probe 6 mounting holes of bottom are motor-driven installation position, during detection, use B ultrasonic mode display defect image, the image that zero drift angle probe, clockwise drift angle probe and counterclockwise drift angle probe produce can be observed simultaneously, by comparison, the shape of wheel axle end surface defect can be more easily determined.
A large amount of construct noises that the present invention produces after for pressing bearing, failure detector can suppress noise, improves signal to noise ratio (S/N ratio), reduces undetected, the raising railway operation safety; Use simultaneously the B ultrasonic mode to show crack image and the super mode display waveform of A, make the differentiation of crackle simple, directly perceived and easy row, the super signal of all A is by real-time storage, for ex-post analysis with recall.
Claims (4)
1. wheel axle end surface flaw detection device, comprise and visit bar structure frame (1), it is characterized in that: the bottom end face of described spy bar structure frame (1) is provided with along the ring-shaped magnet (2) of visiting bar structure frame circle distribution, visit bar structure frame (1) inside and be provided with axial rotor (3), the inside of axial rotor (3) is provided with axial elasticity top (4), the top of movable center (4) is connected with spy bar structure frame (1) by spring (5), around movable center (4), be evenly distributed with four cylindrical probes (6), on the outer wall of cylindrical probe (6), near top end, be provided with turbine and worm governor motion (7), the top of described cylindrical probe (6) is provided with nut (10), between nut (10) and cylindrical probe (6), be threaded connection.
2. wheel axle end surface flaw detection device according to claim 1, it is characterized in that: described turbine and worm governor motion (7) comprises turbine (8) and the worm screw (9) that cooperatively interacts, wherein turbine (8) is arranged on the outer wall of cylindrical probe (6), and worm screw (9) is fixedly connected with axial rotor (3) by bolt.
3. a wheel axle end surface flaw detection method, is characterized in that, comprises the following steps:
1) absorption by the top location of axial elasticity and bar magnet is arranged on the wheel shaft end by wheel axle end surface flaw detection device, in four cylindrical probes of wheel axle end surface flaw detection device, by the turbine and worm governor motion, will be adjusted near the cylindrical probe on top zero drift angle probe, the incident angle of zero drift angle probe adopts the incident of known low-angle 9-12 degree;
2) cylindrical probe near bottom adopts B ultrasonic mode display defect image;
3) by the turbine and worm governor motion, the drift angle of two other cylindrical probe is adjusted into respectively to clockwise drift angle probe and counterclockwise drift angle probe, in order to adapt to the change in orientation of crackle, by clockwise drift angle probe and counterclockwise drift angle pop one's head in respectively Relative Zero drift angle probe to clockwise and counterclockwise be adjusted between the 25-30 degree, and the drift angle of drift angle probe and counterclockwise drift angle probe equates clockwise, this moment, the angle of acoustic beam and wheel axial plane was about the 7-9 degree, incident angle reduces the 0.5-1 degree than zero drift angle probe, can make clockwise drift angle probe, the detection interval of drift angle probe and zero drift angle probe is consistent counterclockwise,
4) the defect image while that the B ultrasonic mode is shown compares with the image that zero drift angle probe, clockwise drift angle probe and counterclockwise drift angle probe obtain, and determines the shape of wheel axle end surface defect.
4. wheel axle end surface flaw detection method according to claim 3, it is characterized in that: described turbine and worm governor motion comprises turbine and the worm screw that cooperatively interacts, wherein turbine is arranged on the outer wall of cylindrical probe, and worm screw is fixedly connected with axial rotor by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101488758A CN101813668B (en) | 2010-04-17 | 2010-04-17 | Wheel axle end surface flaw detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101488758A CN101813668B (en) | 2010-04-17 | 2010-04-17 | Wheel axle end surface flaw detection device and method |
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| CN101813668A CN101813668A (en) | 2010-08-25 |
| CN101813668B true CN101813668B (en) | 2013-11-20 |
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| CN2010101488758A Active CN101813668B (en) | 2010-04-17 | 2010-04-17 | Wheel axle end surface flaw detection device and method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510442B (en) * | 2015-12-22 | 2018-09-18 | 北京欧宁航宇检测技术有限公司 | More phased array probe dynamic linkage focus detection methods |
| CN105510441B (en) * | 2015-12-22 | 2018-04-06 | 北京欧宁航宇检测技术有限公司 | Multichannel combination probe linkage detection method |
| CN107271561A (en) * | 2017-06-27 | 2017-10-20 | 北京双河理声自动化检测技术有限公司 | A kind of B ultrasound imaging method that axle journal is detected from railroad car axle axle body |
| CN108732250B (en) * | 2018-06-06 | 2020-10-16 | 中国农业大学 | Universal-joint self-adaptive adjusting mechanism of probe mounting platform of nondestructive testing device |
| CN110470741B (en) * | 2019-09-10 | 2024-03-15 | 常州春雷电子高新技术有限公司 | Ultrasonic flaw detector for end face of wheel axle |
Citations (2)
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| CN2554063Y (en) * | 2002-04-18 | 2003-06-04 | 武汉育科超声设备有限责任公司 | Ultrasonic intelligence detection detector for axle of stock |
| CN201662558U (en) * | 2010-04-17 | 2010-12-01 | 张玉河 | Flaw detection device at end surface of wheel axle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7228932B2 (en) * | 2003-07-17 | 2007-06-12 | Arvinmeritor Technology, Llc | Wheel end condition detection system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2554063Y (en) * | 2002-04-18 | 2003-06-04 | 武汉育科超声设备有限责任公司 | Ultrasonic intelligence detection detector for axle of stock |
| CN201662558U (en) * | 2010-04-17 | 2010-12-01 | 张玉河 | Flaw detection device at end surface of wheel axle |
Non-Patent Citations (2)
| Title |
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| 《ESTIMATION AND CHANGE DETECTION OF TIRE-ROAD FRICTION USING THE WHEEL SLIP》;F.Gustafsson等;《IEEE》;19960918;99-104 * |
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