CN102928508B - Tight follow-up type ultrasonic flaw detection device - Google Patents
Tight follow-up type ultrasonic flaw detection device Download PDFInfo
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- CN102928508B CN102928508B CN201210413125.8A CN201210413125A CN102928508B CN 102928508 B CN102928508 B CN 102928508B CN 201210413125 A CN201210413125 A CN 201210413125A CN 102928508 B CN102928508 B CN 102928508B
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Abstract
The invention discloses a tight follow-up type ultrasonic flaw detection device. The tight follow-up type ultrasonic flaw detection device comprises a probe box. At least one ultrasonic probe is arranged at the front end of the probe box; the ultrasonic probe is connected with an ultrasonic flaw detection instrument through a signal wire; a water outlet groove is arranged beside the ultrasonic probe; the water outlet groove is connected with a water supply device through a water passing nozzle; the both sides of the probe box are respectively connected with corresponding universal devices; the universal devices at the both sides are respectively mounted on corresponding supporting arms; the supporting arms at the both sides are connected through a connection board; a thread hole matched with an external adjusting screw is arranged on the connection board; and the probe box and a face to be detected tightly follow up through the movement of the connection board on the external adjusting screw and the adjustment of the directions of the universal devices. The tight follow-up type ultrasonic flaw detection device and a rail web surface to be detected keep a tight follow-up state all along, and are entirely coupled; the detection leak and the error detection can be reduced; and the tight follow-up type ultrasonic flaw detection device can be widely applied to the field of production and detection of a heavy rail.
Description
Technical field
The present invention relates to Heavy-rail Production sniffer, refer to a kind of tight follow-up type ultrasonic flaw detection device particularly.
Background technology
At present, in the process of Heavy-rail Production, the on-line checkingi of rail inherent vice adopts contact ultrasonic to detect a flaw mostly.During flaw detection, ultrasonic probe and tested Rail Surface close contact, couplant is made in middle water flowing, is completed the line flaw detection of whole section of rail by rail flowing on a production line.Adopt contact ultrasonic flaw detection to have detection range is near, ultrasonic signal decay less with signal to noise ratio (S/N ratio) advantages of higher.
But in actual testing process, due to reasons such as mechanical factor and rail self flatness errors, make excesssive gap between some rail section web of the rail face and ultrasonic probe, water can not fully be coupled, cause and Lou visit and visit by mistake.For this reason, the online follow-up detector of a set of heavy rail need be studied, the ultrasonic probe of this device can adjust self-position according to the concrete cambered surface in web of the rail face to be checked, reach servo-actuated with closely cooperating of detection faces, thus reduce clutter reflection, improve surplus sensitivity, resolution and signal to noise ratio (S/N ratio), reduce rate of failing to report and rate of false alarm, guarantee accuracy and the reliability of result of detection.
Summary of the invention
Object of the present invention be exactly to provide web of the rail face a kind of and to be checked remain closely servo-actuated, be coupled completely, reduce the tight follow-up type ultrasonic flaw detection device of leaking and visiting and visiting by mistake.
For achieving the above object, tight follow-up type ultrasonic flaw detection device designed by the present invention, comprise probe cassette, the front end of described probe cassette is provided with at least one ultrasonic probe, described ultrasonic probe is connected with ultra-sonic defect detector by signal wire, described ultrasonic probe is other is provided with effluent trough, described effluent trough is connected with water supply installation by water nozzle, described probe cassette both sides are connected with corresponding universal head respectively, described both sides universal head is arranged on corresponding support arm respectively, be connected by web joint between the support arm of described both sides, described web joint is provided with the threaded hole regulating screw mandrel to match with the external world, by the movement of web joint on external world's adjustment screw mandrel and the adjustment in universal head orientation, thus make probe cassette and detected face closely servo-actuated.
Preferably, the top of described probe cassette is provided with the extension spring that can be connected with extraneous undercarriage for a pair.
Further, the front end of described probe cassette is provided with the wear-resisting panel be coupled with detected face, and described ultrasonic probe is arranged on wear-resisting panel.
Enter a ground again, described universal head has housing, and be provided with the cavity that one end is closed in described housing, the blind end of described cavity is provided with universal stage clip, and described universal stage clip is provided with the multi-directional ball abutting with it and coordinate; Described housing both sides are respectively arranged with universal-joint spindle and fixed arm, described universal-joint spindle one end is connected with multi-directional ball through the straight trough in housing sidewall, the described universal-joint spindle other end is flexibly connected with the side opening on probe cassette, and described fixed arm is flexibly connected with the mounting hole on support arm.
Also further, described ultrasonic probe is provided with three, wherein: first ultrasonic probe fixed and arranged, and second and the 3rd ultrasonic probe activity layout.
Further, described wear-resisting panel offers three cavitys, wherein: first cavity is fixedly set with first ultrasonic probe and coordinated, second and the 3rd cavity are set with second and the 3rd ultrasonic probe activity respectively coordinated by the guide rail of both sides, slide blocks, and second and the 3rd cavity lower end are respectively arranged with and the Compress Spring abutted bottom second and the 3rd ultrasonic probe, second and the 3rd ultrasonic probe top are respectively arranged with the adjusting bolt of stretching out wear-resisting panel.
Further, described effluent trough is inverted L shape cross section structure, is positioned at the side, top of ultrasonic probe.
Principle of work of the present invention is such: before detection, first tight follow-up type ultrasonic flaw detection device offline group of the present invention is installed, then, by the threaded hole on the web joint between the support arm of two, probe cassette both sides, a whole set of tight follow-up type ultrasonic flaw detection device is assembled on extraneous adjusting screw, and signal wire is connected with ultra-sonic defect detector, water nozzle connects with water supply installation.Then, the sensitivity of tight follow-up type ultrasonic flaw detection device is regulated: start to supply water to effluent trough by the test of sample rail, by coarse adjustment (namely adjustment is extraneous regulates screw mandrel) and accurate adjustment (namely regulating the adjusting bolt on second and the 3rd ultrasonic probe), on probe cassette three ultrasonic probes are made to aim at artificial defect on sample rail respectively, and obtain best flaw echo, the sensitivity of ultrasonic probe is finally adjusted by regulation.After all working is ready, a whole set of tight follow-up type ultrasonic flaw detection device just can come into operation.
In use procedure, because this device is provided with universal head between support arm and probe cassette, be provided with universal stage clip in universal head, described universal stage clip can guarantee that probe cassette and detected face can remain close contact.Simultaneously, a multi-directional ball is also provided with in universal head, universal-joint spindle both can rotate in multi-directional ball, can move forward and backward with multi-directional ball and universal stage clip again, therefore when detecting, probe cassette can, according to detected face automatic adjusting position, make ultrasonic probe in any case can closely cooperate servo-actuated with detected face, reduce the unreasonable gap between ultrasonic probe and detected face, reduce misdetection rate and False Rate.
The invention has the advantages that: tight follow-up type ultrasonic flaw detection device is rotated flexible, reliable, in use procedure, probe cassette and detected face that ultrasonic probe is housed remain closely servo-actuated, not only reduce clutter reflection, improve flaw detection accuracy rate, and reduce ultrasonic probe loss, save production cost.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of tight follow-up type ultrasonic flaw detection device;
Fig. 2 be probe cassette front end in Fig. 1 analyse and observe structure for amplifying schematic diagram;
Fig. 3 be universal head in Fig. 1 analyse and observe structure for amplifying schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
See Fig. 1 to Fig. 2, tight follow-up type ultrasonic flaw detection device of the present invention, comprises probe cassette 1, ultrasonic probe 2, effluent trough 3, water nozzle 4, signal wire 5, extension spring 6, universal head 7, support arm 8, web joint 9, guide rail 10, slide block 11, Compress Spring 12, wear-resisting panel 13 and adjusting bolt 14.
Described ultrasonic probe 2 at least one, be located at the front end of probe cassette 1, described ultrasonic probe 2 is connected with ultra-sonic defect detector (not shown) by signal wire 5, described effluent trough 3 is positioned at ultrasonic probe 2 side, described effluent trough 3 is connected with water supply installation (not shown) by water nozzle 4, be convenient to provide water to make couplant when detecting, in the present embodiment, see Fig. 2, described ultrasonic probe 2 is three, first ultrasonic probe 2.1 fixed and arranged, second ultrasonic probe 2.2 and the 3rd ultrasonic probe 2.3 activity are arranged, movable second ultrasonic probe 2.2 arranging and the 3rd ultrasonic probe 2.3 can make detection sensitivity and accuracy rate higher, described ultrasonic probe 2 is potable crystal probe, wherein, launch wafer and receive the plane included angle, place, front end of wafer and probe cassette 1 all in 6 °, and the angle launched between wafer and reception wafer is 168 °, relative to the single crystal probe used in prior art, potable crystal probe Effect on Detecting is better, described extension spring 6 is a pair, is all located at probe cassette 1 top, and extension spring 6 is connected with extraneous undercarriage (not shown), and effect is balanced probe head box 1, the front end of probe cassette 1 is located at by described wear-resisting panel 13, be coupled completely with detected face (not shown), described ultrasonic probe 2 is arranged on wear-resisting panel 13, in optimum embodiment, described wear-resisting panel 13 offers first cavity 13.1, second cavity 13.2 and the 3rd cavity 13.3, wherein: first cavity 13.1 is fixedly set with first ultrasonic probe 2.1 and coordinated, second cavity 13.2 and the 3rd cavity 13.3 are by the guide rail 10 of both sides, slide block 11 is set with second ultrasonic probe 2.2 and the 3rd ultrasonic probe 2.3 activity respectively and is coordinated, described Compress Spring 12 has two, all be arranged at second cavity 13.2 and the 3rd cavity 13.3 lower end, two Compress Springs 12 respectively with abut bottom second ultrasonic probe 2.2 and the 3rd ultrasonic probe 2.3, described adjusting bolt 14 has two, two adjusting bolts 14 are connected with the 3rd ultrasonic probe 2.3 top with second ultrasonic probe 2.2 respectively, and stretch out wear-resisting panel 13, this structure can make second ultrasonic probe 2.2 and the 3rd ultrasonic probe 2.3 can finely tune relative to the defective locations on detected face, carbon structure 45# steel selected by wear-resisting panel 13, described wear-resisting panel 13 surface is provided with the wearing layer that a layer thickness is 0.25mm, and wearing layer adopts HVAF to form, and spraying raw material powder is 10Co4Cr/WC, and size of powder particles is 10-45 μm, described effluent trough 3 is in inverted L shape cross section structure, and be positioned at the side, top of ultrasonic probe 2, relative to original cylindrical tank, inverted L shape cross section effluent trough 3 can make water being more evenly distributed in detected face, delay block (not shown) is provided with before each wafer of described potable crystal probe, material is organic glass, described delay block can effectively filter probe time clutter, arrange a cork (not shown) in the middle of two pieces of delay blocks and do pugging to prevent from transmitting and acknowledge(ment) signal disturbs mutually, the potable crystal probe of this version is more conducive to detecting the nearly interior surface defect of workpiece, described extraneous undercarriage is failure detector undercarriage, and described detected face is web of the rail cambered surface.
Described universal head 7 corresponds respectively to probe cassette 1 both sides, make probe cassette 1 and detected face closely servo-actuated, described both sides universal head 7 is arranged on corresponding support arm 8 respectively, be connected by web joint 9 between described both sides support arm 8, described web joint 9 is provided with the threaded hole 9.1 regulating screw mandrel (not shown) to match with the external world, by the movement of web joint 9 on external world's adjustment screw mandrel and the adjustment in universal head 7 orientation, thus make probe cassette 1 and detected face closely servo-actuated, in the present embodiment, see Fig. 3, described universal head 7 has a housing 7.1, the cavity 7.1.1 that one end is closed is provided with in described housing 7.1, the blind end of described cavity 7.1.1 is provided with universal stage clip 7.2, described universal stage clip 7.2 is provided with the multi-directional ball 7.3 abutting with it and coordinate, described housing 7.1 both sides are respectively arranged with universal-joint spindle 7.4 and fixed arm 7.5, described universal-joint spindle 7.4 one end is connected with multi-directional ball 7.3 through the straight trough on housing 7.1 sidewall, universal-joint spindle 7.4 other end is flexibly connected with the side opening (not shown) on probe cassette 1, described fixed arm 7.5 is flexibly connected with the mounting hole on support arm 8, this structure can make probe cassette 1 energy according to the cambered surface automatic adjusting position in detected face, ultrasonic probe 2 can be closely cooperated with web of the rail detection faces, thus reduce leakage spy rate and miss spy rate, described support arm 8 is in " L " type, the described external world regulates screw mandrel to be web of the rail undercarriage up-down adjustment screw mandrel.
Before detection, first tight follow-up type ultrasonic flaw detection device offline group of the present invention is installed, then, by the threaded hole 9.1 on the web joint 9 between the support arm 8 of two, probe cassette 1 both sides, a whole set of tight follow-up type ultrasonic flaw detection device is assembled on extraneous adjusting screw, and signal wire 5 is connected with ultra-sonic defect detector, water nozzle 4 connects with water supply installation.Then, the sensitivity of tight follow-up type ultrasonic flaw detection device is regulated: start to supply water to effluent trough 3 by the test of sample rail (not shown), by coarse adjustment (namely adjustment is extraneous regulates screw mandrel) and accurate adjustment (namely regulating the adjusting bolt 14 on probe cassette 1), three ultrasonic probes 2 on probe cassette 1 are made to aim at artificial defect on sample rail respectively, and obtain best flaw echo, the sensitivity of ultrasonic probe 2 is finally adjusted by regulation.After all working is ready, a whole set of tight follow-up type ultrasonic flaw detection device just can come into operation.
In use procedure, because this device is provided with universal head 7 between support arm 8 and probe cassette 1, be provided with universal stage clip 7.2 in universal head 7, described universal stage clip 7.2 can guarantee that probe cassette 1 and web of the rail detection faces can remain close contact.Simultaneously, a multi-directional ball 7.3 is also provided with in universal head 7, universal-joint spindle 7.4 both can rotate in multi-directional ball 7.3, can move forward and backward with multi-directional ball 7.3 and universal stage clip 7.2 again, therefore when detecting, probe cassette 1 can, according to the cambered surface automatic adjusting position in detected face, make ultrasonic probe 2 in any case can closely cooperate servo-actuated with detected face, reduce the unreasonable gap between ultrasonic probe 2 and detected face, reduce misdetection rate and False Rate.
Claims (7)
1. a tight follow-up type ultrasonic flaw detection device, comprise probe cassette (1), the front end of described probe cassette (1) is provided with at least one ultrasonic probe (2), described ultrasonic probe (2) is connected with ultra-sonic defect detector by signal wire (5), described ultrasonic probe (2) is other is provided with effluent trough (3), described effluent trough (3) is connected with water supply installation by water nozzle (4), it is characterized in that: described probe cassette (1) both sides are connected with corresponding universal head (7) respectively, described universal head (7) is arranged on corresponding support arm (8) respectively, be connected by web joint (9) between described support arm (8), described web joint (9) is provided with the threaded hole (9.1) regulating screw mandrel to match with the external world, by the movement of web joint (9) on external world's adjustment screw mandrel and the adjustment in universal head (7) orientation, thus make probe cassette (1) and detected face closely servo-actuated, described effluent trough (3), in inverted L shape cross section structure, is positioned at the side, top of ultrasonic probe (2).
2. tight follow-up type ultrasonic flaw detection device according to claim 1, is characterized in that: the top of described probe cassette (1) is provided with the extension spring (6) that can be connected with extraneous undercarriage for a pair.
3. tight follow-up type ultrasonic flaw detection device according to claim 1, it is characterized in that: the front end of described probe cassette (1) is provided with the wear-resisting panel (13) be coupled with detected face, and described ultrasonic probe (2) is arranged on wear-resisting panel (13).
4. the tight follow-up type ultrasonic flaw detection device according to claim 1 or 2 or 3, it is characterized in that: described universal head (7) has housing (7.1), the cavity (7.1.1) that one end is closed is provided with in described housing (7.1), the blind end of described cavity (7.1.1) is provided with universal stage clip (7.2), described universal stage clip (7.2) is provided with the multi-directional ball (7.3) abutting with it and coordinate; Described housing (7.1) both sides are respectively arranged with universal-joint spindle (7.4) and fixed arm (7.5), described universal-joint spindle (7.4) one end is connected with multi-directional ball (7.3) through the straight trough on housing (7.1) sidewall, described universal-joint spindle (7.4) other end is flexibly connected with the side opening on probe cassette (1), and described fixed arm (7.5) is flexibly connected with the mounting hole on support arm (8).
5. tight follow-up type ultrasonic flaw detection device according to claim 1 and 2, it is characterized in that: described ultrasonic probe (2) is provided with three, wherein: first ultrasonic probe (2.1) fixed and arranged, second and the 3rd ultrasonic probe (2.2,2.3) activity layout.
6. tight follow-up type ultrasonic flaw detection device according to claim 3, it is characterized in that: described ultrasonic probe (2) is provided with three, wherein: first ultrasonic probe (2.1) fixed and arranged, second and the 3rd ultrasonic probe (2.2,2.3) activity layout.
7. tight follow-up type ultrasonic flaw detection device according to claim 6, it is characterized in that: described wear-resisting panel (13) offers three cavitys (13.1, 13.2, 13.3), wherein: first cavity (13.1) is fixedly set with first ultrasonic probe (2.1) and coordinated, second and the 3rd cavity (13.2, 13.3) by the guide rail (10) of both sides, slide block (11) respectively with second and the 3rd ultrasonic probe (2.2, 2.3) cooperation is set in activity, and second and the 3rd cavity (13.2, 13.3) lower end is respectively arranged with and second and the 3rd ultrasonic probe (2.2, 2.3) Compress Spring (12) of bottom abutting, second and the 3rd ultrasonic probe (2.2, 2.3) top is respectively arranged with the adjusting bolt (14) of stretching out wear-resisting panel (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210413125.8A CN102928508B (en) | 2012-10-25 | 2012-10-25 | Tight follow-up type ultrasonic flaw detection device |
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| CN201210413125.8A CN102928508B (en) | 2012-10-25 | 2012-10-25 | Tight follow-up type ultrasonic flaw detection device |
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| CN102928508A CN102928508A (en) | 2013-02-13 |
| CN102928508B true CN102928508B (en) | 2015-01-21 |
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| CN105021711A (en) * | 2015-07-30 | 2015-11-04 | 南通友联数码技术开发有限公司 | Ultrasonic probe coupling device for detecting plate defects |
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| CN108263419B (en) * | 2018-03-02 | 2023-10-10 | 四川曜诚无损检测技术有限公司 | Probe flaw detection control device for detecting bottom surface of steel rail bottom |
| CN111521688A (en) * | 2020-05-29 | 2020-08-11 | 鞍钢股份有限公司 | Square steel combination formula probe landing gear |
| CN114062515A (en) * | 2021-11-18 | 2022-02-18 | 西安热工研究院有限公司 | Ultrasonic probe clamping tool capable of uniformly applying coupling agent |
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