CN102928515B - Ultrasonic fault detector and wedge block thereof - Google Patents
Ultrasonic fault detector and wedge block thereof Download PDFInfo
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- CN102928515B CN102928515B CN201210485530.0A CN201210485530A CN102928515B CN 102928515 B CN102928515 B CN 102928515B CN 201210485530 A CN201210485530 A CN 201210485530A CN 102928515 B CN102928515 B CN 102928515B
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- voussoir
- wedge block
- ultrasonic
- face
- fault detector
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- 239000000523 sample Substances 0.000 claims description 26
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 description 21
- 229910052573 porcelain Inorganic materials 0.000 description 15
- 238000002604 ultrasonography Methods 0.000 description 13
- 235000012431 wafers Nutrition 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- -1 such as Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a wedge block of an ultrasonic fault detector. The length of the bottom surface of the wedge block is 15mm, the width of the bottom surface of the wedge block is 7mm, the distance from the topmost point of the top surface of the wedge block to the bottom surface is 4.5mm, and an included angle between the top surface of the wedge block and a horizontal plane is 20-23 degrees. By utilizing the wedge block of the ultrasonic fault detector, the size of the wedge block is effectively reduced on the basis of guaranteeing that a workpiece has enough intensity and good stability after the ultrasonic wave sent by the detector reaches the workpiece. The ultrasonic fault detector is small in thickness and can be extended between a flange and an umbrella skirt having a gap distance of about 10mm.
Description
Technical field
The present invention relates to UT (Ultrasonic Testing) technical field, particularly a kind of UT (Ultrasonic Testing) instrument probe and voussoir thereof.
Background technology
Pillar porcelain insulator (insulator) is widely used in electric power transportation art, and the security that the product confrontation electric power of pillar porcelain insulator (insulator) is carried has important impact.The defects such as the lower flange of pillar porcelain insulator (insulator) and the gluey position of porcelain piece the most easily cracks, bubble, in order to find in time the defect at lower flange mucilage binding position, most adopts ultrasound wave to carry out porcelain insulator (insulator) flaw detection.
Please refer to Fig. 1, Fig. 1 is prior art B-C post porcelain insulator and ultrasonic-wave flaw-detecting probe schematic diagram.
Ultrasonic wave detecting system is mainly made up of probe 01, connection data line, defectoscope three parts, common detection method is that probe 01 is placed between upper flange or lower flange 02 and adjacent full skirt 03, near flange position, with the circumferentially scanning of ultrasound wave edge, reviewer is by observing the waveform signal of defectoscope in scanning process, judges whether defectiveness of porcelain insulator.
In actual pillar porcelain insulator (insulator) UT (Ultrasonic Testing) process, run into a part of pillar porcelain insulator (insulator), between its upper flange or lower flange 02 and adjacent full skirt 03, distance is too little, only have 10 millimeter, and the thickness of conventional transducer has 12 millimeters, cause that thus probe can not effectively fit with insulator surface, caused this position of equipment to become and detected blind area, power grid security has been caused to very large hidden danger.
The inner ceramic wafers of popping one's head in is to produce hyperacoustic core component, is lined with voussoir below ceramic wafers, and the bottom surface of voussoir is surface level, and end face is dip plane, and ceramic wafers is positioned over the end face of voussoir.In prior art, the bottom surface length of voussoir is 24mm, and width is 12mm, and end face peak is 7.4mm to the distance of bottom surface.
In order to reduce the thickness of probe, to pop one's head between the full skirt that can extend into the lower flange of clearance distance 10mm left and right and be adjacent, the size of voussoir need to reduce.But if the size of scaled voussoir, the strength and stability that the ultrasound wave that ceramic wafers produces arrives workpiece will be affected, and then can not accurately judge whether porcelain insulator exists defect.
Therefore, how can arrive on the basis of strength and stability of workpiece not affecting the ultrasound wave that probe launches, the size of dwindling voussoir, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of voussoir of ultrasonic-wave flaw-detecting probe, it can, ensureing have enough intensity and have on the basis of better stability after the ultrasound wave arrival workpiece that probe sends, effectively dwindle the size of himself.The present invention also provides a kind of ultrasonic-wave flaw-detecting probe, and its thickness is less, and can stretch into clearance distance is between the flange and full skirt of 10mm left and right, and then can effectively judge whether porcelain insulator exists defect.
The voussoir of UT (Ultrasonic Testing) instrument probe provided by the invention, the bottom surface length of described voussoir is 15mm, and width is 7mm, and the peak of end face is 4.5mm to the distance of bottom surface, and the end face of described voussoir and the angle of surface level are 20 degree-23 degree.
Preferably, the end face of described voussoir is provided with the texture extending along the Width of described voussoir.
Preferably, described voussoir is plastics voussoir.
The present invention also provides a kind of UT (Ultrasonic Testing) instrument probe, comprises the voussoir as described in above-mentioned any one.
The voussoir of UT (Ultrasonic Testing) instrument probe provided by the invention, the bottom surface length of described voussoir is 15mm, and width is 7mm, and the peak of end face is 4.5mm to the distance of bottom surface, and the end face of described voussoir and the angle of surface level are 20 degree-23 degree.Because voussoir size provided by the invention is less than voussoir size of the prior art, the end face of voussoir and the angle of surface level are 20-23 degree, mean in the time that the bottom surface of voussoir is placed on surface level, and the end face of voussoir and the angle of surface level are 20-23 degree.The ultrasound wave that wafer on voussoir produces arrives the detected strength and stability of workpiece and is closely related with the size of voussoir and angle of inclination, the top surface inclination angle of the present invention's voussoir is set to 20-23 degree, can make the ultrasound wave of wafer generation almost perpendicular to the thickness direction that is detected workpiece, and then ensure that ultrasound wave arrives the strength and stability of detected workpiece.
In preferred version of the present invention, the end face of described voussoir is provided with the texture extending along the Width of described voussoir.The texture extending along the Width of voussoir is set at the end face of voussoir, not only can prevents that wafer from sliding to two side directions of voussoir, and the surface of contact of wafer and voussoir is texture face, the ultrasonic intensity of generation can effectively improve.
The present invention also provides a kind of UT (Ultrasonic Testing) instrument probe, comprises the voussoir as described in above-mentioned any one.So arrange, ultrasonic-wave flaw-detecting probe provided by the invention, its thickness is less, can stretch between flange and full skirt, and then can effectively judge whether porcelain insulator exists defect.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, the accompanying drawing the following describes is only some embodiment that record in the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is prior art B-C post porcelain insulator and ultrasonic-wave flaw-detecting probe schematic diagram;
Fig. 2 is the inner structure schematic diagram of popping one's head in the specific embodiment of the invention;
Fig. 3 is the main TV structure schematic diagram of voussoir in the specific embodiment of the invention;
Fig. 4 is the left TV structure schematic diagram of voussoir in the specific embodiment of the invention;
In Fig. 1:
Probe-01, lower flange-02, full skirt-03;
In Fig. 2-Fig. 4:
The peak of voussoir-11, bottom surface length-L, bottom width-W, end face is to distance-D, wafer-12 of bottom surface.
Embodiment
This embodiment provides a kind of voussoir of ultrasonic-wave flaw-detecting probe, and it can, ensureing have enough intensity and have on the basis of better stability after the ultrasound wave arrival workpiece that probe sends, effectively dwindle the size of himself.This embodiment also provides a kind of ultrasonic-wave flaw-detecting probe, and its thickness is less, can stretch between the flange and full skirt of clearance distance 10mm left and right, and then can effectively judge whether porcelain insulator exists defect.
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
Please refer to Fig. 2-Fig. 4, Fig. 2 is the inner structure schematic diagram of popping one's head in the specific embodiment of the invention; Fig. 3 is the main TV structure schematic diagram of voussoir in the specific embodiment of the invention; Fig. 4 is the left TV structure schematic diagram of voussoir in the specific embodiment of the invention.
The voussoir 11 of UT (Ultrasonic Testing) instrument probe provided in the present embodiment, the bottom surface length L=15mm of voussoir 11, bottom width W=7mm, the peak of end face is to the distance B=4.5mm of bottom surface, and the end face of voussoir 11 and the angle of surface level are 20 degree-23 degree.
It should be noted that, the end face of voussoir 11 and the angle of surface level are 20-23 degree, mean in the time that the bottom surface of voussoir 11 is placed on surface level, and the end face of voussoir 11 and the angle of surface level are 20-23 degree.
Because voussoir size provided in the present embodiment is less than voussoir size of the prior art, and the ultrasound wave that the wafer 12 on voussoir produces arrives the detected strength and stability of workpiece and is closely related with the size of voussoir and angle of inclination, this embodiment is set to 20-23 degree by the top surface inclination angle of voussoir 11, can make ultrasound wave that wafer 12 produces almost perpendicular to the thickness direction of detected workpiece, and then ensure that ultrasound wave arrives the strength and stability of detected workpiece.Therefore, voussoir 11 provided in the present embodiment, it can, ensureing have enough intensity and have on the basis of better stability after the ultrasound wave arrival workpiece that probe sends, effectively dwindle the size of himself.
In preferred version provided in the present embodiment, the end face of voussoir 11 is provided with the texture (not shown) of extending along the Width of voussoir 11.
The texture extending along the Width of voussoir 11 is set at the end face of voussoir 11, not only can prevent that wafer 12 from sliding to two side directions of voussoir 11, and wafer 12 is texture face with the surface of contact of voussoir 11, between wafer 12 and voussoir 11, have gap, the ultrasonic intensity of generation can effectively improve.
It should be noted that, voussoir 11 provided by the invention can be the voussoir of engineering plastics material, certainly, also can be the voussoir of other material, such as, ceramic, wooden etc.
This embodiment also provides a kind of UT (Ultrasonic Testing) instrument probe, comprises voussoir as above.So arrange, ultrasonic-wave flaw-detecting probe provided in the present embodiment, its thickness is less, can stretch between flange and full skirt, and then can effectively judge whether porcelain insulator exists defect.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wide region consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a voussoir for UT (Ultrasonic Testing) instrument probe, is characterized in that, the bottom surface length of described voussoir is 15mm, and width is 7mm, and the peak of end face is 4.5mm to the distance of bottom surface, and the end face of described voussoir and the angle of surface level are 20 degree-23 degree.
2. voussoir as claimed in claim 1, is characterized in that, the end face of described voussoir is provided with the texture extending along the Width of described voussoir.
3. voussoir as claimed in claim 2, is characterized in that, described voussoir is plastics voussoir.
4. a UT (Ultrasonic Testing) instrument probe, is characterized in that, comprises the voussoir as described in claim 1-3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210485530.0A CN102928515B (en) | 2012-11-23 | 2012-11-23 | Ultrasonic fault detector and wedge block thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210485530.0A CN102928515B (en) | 2012-11-23 | 2012-11-23 | Ultrasonic fault detector and wedge block thereof |
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| Publication Number | Publication Date |
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| CN102928515A CN102928515A (en) | 2013-02-13 |
| CN102928515B true CN102928515B (en) | 2014-09-17 |
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| CN201210485530.0A Active CN102928515B (en) | 2012-11-23 | 2012-11-23 | Ultrasonic fault detector and wedge block thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605981B (en) * | 2013-12-03 | 2016-07-20 | 国家电网公司 | Defects of insulator recognition methods based on image recognition |
| CN114280161A (en) * | 2021-12-23 | 2022-04-05 | 杭州瑞声检测科技有限公司 | Probe wheel for double-rail type steel rail ultrasonic flaw detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163746C (en) * | 1997-10-31 | 2004-08-25 | 杰富意钢铁株式会社 | Method and apparatus for ultrasonically detecting flaw on surface of circular cylinder, and method of grinding roll utilizing same |
| CN1948962B (en) * | 2005-10-12 | 2010-09-08 | 华东电力试验研究院有限公司 | Supersonic crack detecting method of pillar porcelain insulator and probe thereof |
| CN101329308A (en) * | 2008-03-20 | 2008-12-24 | 上海交通大学 | Column support insulator and porcelain bushing ultrasonic wave electrified flaw detection special-purpose probe |
| CN202903744U (en) * | 2012-11-23 | 2013-04-24 | 宁波电业局 | Ultrasonic flaw detector probe and wedge block thereof |
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