JPH082611Y2 - Rotary ultrasonic flaw detection head - Google Patents
Rotary ultrasonic flaw detection headInfo
- Publication number
- JPH082611Y2 JPH082611Y2 JP1872290U JP1872290U JPH082611Y2 JP H082611 Y2 JPH082611 Y2 JP H082611Y2 JP 1872290 U JP1872290 U JP 1872290U JP 1872290 U JP1872290 U JP 1872290U JP H082611 Y2 JPH082611 Y2 JP H082611Y2
- Authority
- JP
- Japan
- Prior art keywords
- probe
- axle
- flaw detection
- tire
- bearing
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims description 9
- 239000000523 sample Substances 0.000 claims description 42
- 239000010409 thin film Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 description 8
- 238000007689 inspection Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、航空機の翼面等の構造部材の超音波探傷に
使用する回転式超音波探傷ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a rotary ultrasonic flaw detection head used for ultrasonic flaw detection of a structural member such as a wing surface of an aircraft.
従来の超音波を使用する探傷検査は、市販の探傷機及
び探傷用プローブを使用しており、探傷機は電気装置に
より構成され、周波数、出力を変化させることができ、
レーダーの受信機に例えられる。また、プローブはアン
テナの役目をしている。探傷検査に際しては、探傷機と
プローブをリード線で継ぎ、材料や板厚に応じた周波
数、出力を選び材料にプローブを密着し、超音波を伝播
させて、そのエコーを探傷機側で読みとるものである。
前記において、１個のプローブにより行う検査法を反射
式法と呼び、２個のプローブで試験材料をはさみ、一方
を発信器とし他方を受信器として検査を行う方法を透過
式法と呼ぶ。上記検査に用いる従来のプローブは、第４
図に示すような型式が一般的に使用されており、第４図
（ａ），（ｂ）に示すハンド型の場合は手で持ち、材料
上を滑らせるか、または測定点ごとに押当てて使用す
る。上記プローブは材料表面に凹凸があってプローブと
材料間にギャップが生じると、音波が遮断され測定不能
となる。このためあらかじめ試験材の表面は滑らかに仕
上げ、且つ触媒を塗布して行っていた。また、水流式プ
ローブの場合は、第４図（ｃ）に示すようにノーズル内
にプローブ02を取付けて水01を流し、水01を媒体として
音波を伝播させる。このためプローブ02は材料に接触さ
せる必要が無く表面の滑らかさもそれ程必要としない。
但し多量の水量を必要とし装置が大型となるため可搬式
とはならず高価になる上に、被検査物体が、水により損
傷を受ける場合があった。The conventional flaw detection using ultrasonic waves uses a commercially available flaw detector and flaw detection probe, and the flaw detector is composed of an electric device, and the frequency and output can be changed,
It is likened to a radar receiver. The probe also serves as an antenna. In flaw detection inspection, the flaw detector and probe are connected by a lead wire, the frequency and output are selected according to the material and plate thickness, the probe is brought into close contact with the material, ultrasonic waves are propagated, and the echo is read by the flaw detector side. Is.
In the above, the inspection method performed by one probe is called a reflection method, and the method in which the test material is sandwiched by two probes and one is used as a transmitter and the other is used as a receiver is called a transmission method. The conventional probe used for the above inspection is the fourth
The type shown in the figure is generally used. In the case of the hand type shown in FIGS. 4 (a) and 4 (b), hold it by hand and slide it on the material or press at each measurement point. To use. If the material surface of the probe is uneven and a gap is created between the probe and the material, sound waves are blocked and measurement becomes impossible. For this reason, the surface of the test material was finished in advance and the catalyst was applied. Further, in the case of the water-flow type probe, as shown in FIG. 4 (c), the probe 02 is mounted in the nose to flow the water 01, and the sound wave is propagated using the water 01 as a medium. Therefore, the probe 02 does not need to be in contact with the material and does not require surface smoothness.
However, since a large amount of water is required and the device becomes large, it is not portable and expensive, and the object to be inspected may be damaged by water.
従来のプローブにおいては、前記のように、ハンド型
プローブの場合は、被検査物の表面に凹凸があると検査
不能となり、被検査物の表面を仕上げたり、液状物を塗
布する必要があり、また、水流式プローブの場合には、
大量の水を必要とし、装置が大型になり、被検査物が水
により損傷するなどの課題があった。本考案は上記の課
題を解決しようとするものである。In the conventional probe, as described above, in the case of the hand-type probe, it becomes impossible to inspect if there is unevenness on the surface of the inspected object, it is necessary to finish the surface of the inspected object, or to apply a liquid material, In the case of a water flow probe,
There is a problem that a large amount of water is required, the device becomes large, and the inspection object is damaged by water. The present invention is intended to solve the above problems.
本考案の回転式超音波探傷ヘッドは、プローブがシー
ルを介して挿入されるプローブ内蔵部を有する車軸、上
記プローブ内蔵部の一側方に位置する上記車軸の一端に
一方のベアリングと一方のベアリングリテーナを介して
設けられたガイドローラ、同ガイドローラに設けられた
エアブリーダ、上記プローブ内蔵部の他側方に位置する
上記車軸の他端側に設けられ他方のベアリング及び他方
のベアリングリテーナを介して設けられたガイドリン
グ、上記一方と他方のベアリングリテーナの外周を包む
ように設けられた柔軟な薄膜よりなるタイヤ、同タイヤ
と上記車軸のプローブ内蔵部の間に封入された超音波媒
体を備えたことを特徴としている。The rotary ultrasonic flaw detection head of the present invention comprises an axle having a probe built-in portion into which a probe is inserted through a seal, one bearing and one bearing at one end of the axle located at one side of the probe built-in portion. Via a guide roller provided via a retainer, an air bleeder provided on the guide roller, the other bearing provided on the other end of the axle located on the other side of the probe built-in portion, and the other bearing retainer. A guide ring provided, a tire made of a flexible thin film provided so as to wrap the outer circumference of the one and the other bearing retainers, and an ultrasonic medium enclosed between the tire and the probe built-in portion of the axle. Is characterized by.
上記において、被検査物の超音波検査を行う場合、ま
ずタイヤとプローブ内蔵部の間に超音波媒体を注入し、
エアブリーダにより気泡を除去する。上記の状態で、被
検査物の表面にタイヤを接触させ、プローブにより超音
波を発受信しながら、本実施例の装置を移動させる。In the above, when performing an ultrasonic inspection of the inspection object, first inject an ultrasonic medium between the tire and the probe built-in portion,
Remove air bubbles with an air bleeder. In the above state, the tire is brought into contact with the surface of the object to be inspected, and the device of this embodiment is moved while transmitting and receiving ultrasonic waves with the probe.
上記タイヤは装置の移動に伴い回転するが、柔軟な薄
膜よりなるため、被検査物に凹凸がある場合にもよく接
触し、ガイドリングが設けられているため、接触圧力が
均一に保たれ、タイヤの損傷やスリップが防止できる。
また、プローブと被検査物の間の距離が短かく、超音波
媒体は超音波の減衰が小さいものを用いているため、プ
ローブの感度は良好である。上記により、表面形状が変
化し、凹凸のある被検査物の場合にも容易に欠陥を検出
することができる感度の良好なプローブを実現すること
ができた。Although the tire rotates with the movement of the device, since it is made of a flexible thin film, it often comes into contact with the object to be inspected even if it has irregularities, and since the guide ring is provided, the contact pressure is kept uniform, Tire damage and slip can be prevented.
Further, since the distance between the probe and the object to be inspected is short and the ultrasonic medium used is one that has a small attenuation of ultrasonic waves, the sensitivity of the probe is good. From the above, it was possible to realize a probe with good sensitivity that can easily detect a defect even in the case of an inspected object having a surface shape changed and having irregularities.
本考案の１実施例を第１図乃至第３図に示す。 One embodiment of the present invention is shown in FIGS.
第１図乃至第３図に示す本実施例は、プローブ11がＯ
−リング12を介して挿されるプローブ内蔵部1aを有する
車軸１、同車軸１の一端にベアリング９とベアリングリ
テーナ10とＯリング７を介して設けられたガイドローラ
６、同ガイドローラ６の中心部に設けられたエアブリー
ダ８、上記車軸１の他端側に設けられベアリング13とオ
イルシール２とベアリングリテーナ３を介して設けられ
たガイドリング４、上記ベアリングリテーナ3,10の外周
を包むように設けられた柔軟性がある薄膜のタイヤ５、
同タイヤ５と上記プローブ内蔵部1aの間に封入された超
音波媒体16、および上記車軸１の他端に設けられ上記プ
ローブ11に一端が接続されたコード15の他端が接続され
たコードジョイント14を備えている。上記において、被
検査物の超音波検査を行う場合、まずタイヤ５とプロー
ブ内蔵部1aの間に低粘度のアルコール性添化液の超音波
媒体16を注入し、エアブリーダ８により気泡を除去す
る。In this embodiment shown in FIGS. 1 to 3, the probe 11 is O
An axle 1 having a probe built-in portion 1a inserted through a ring 12, a guide roller 6 provided at one end of the axle 1 via a bearing 9, a bearing retainer 10 and an O-ring 7, a central portion of the guide roller 6 An air bleeder 8 provided on the vehicle, a guide ring 4 provided on the other end side of the axle 1 via a bearing 13, an oil seal 2 and a bearing retainer 3, and provided so as to enclose the outer circumference of the bearing retainers 3 and 10. Flexible thin film tire 5,
An ultrasonic medium 16 enclosed between the tire 5 and the probe built-in portion 1a, and a cord joint provided at the other end of the axle 1 and connected at the other end of a cord 15 having one end connected to the probe 11 Equipped with 14. In the above, when ultrasonically inspecting an object to be inspected, first, the ultrasonic medium 16 of a low-viscosity alcoholic additive liquid is injected between the tire 5 and the probe built-in portion 1a, and air bubbles are removed by the air bleeder 8.
上記の状態で、被検査物の表面にタイヤ５を接触さ
せ、プローブ11により超音波を発受信しながら、本実施
例の装置を移動させる。上記タイヤ５は装置の移動に伴
い回転するが、柔軟な薄膜よりなるため、被検査物に凹
凸がある場合にもよく接触し、またガイドリングが設け
られているため、接触圧力は均一に保たれ、タイヤの損
傷が防止され、スリップが防止される。In the above state, the tire 5 is brought into contact with the surface of the object to be inspected, and the device of this embodiment is moved while the probe 11 emits and receives ultrasonic waves. The tire 5 rotates with the movement of the apparatus, but since it is made of a flexible thin film, it makes good contact even when the object to be inspected has unevenness, and since the guide ring is provided, the contact pressure is kept uniform. Leaning and tire damage are prevented and slip is prevented.
また、プローブ11と被検査物の間の距離は短かく、タ
イヤ５内に封入された超音波媒体16は低粘度のアルコー
ル性添化液を用いているため、超音波の減衰は少なく、
プローブ11の感度は良好である。上記により、表面形状
が変化し、表面に凹凸がある被検査物の場合にも容易に
欠陥を検出することができる感度の良好なプローブを実
現することができた。Further, since the distance between the probe 11 and the object to be inspected is short and the ultrasonic medium 16 enclosed in the tire 5 uses a low-viscosity alcoholic additive liquid, the attenuation of ultrasonic waves is small,
The sensitivity of the probe 11 is good. From the above, it was possible to realize a probe with good sensitivity that can easily detect a defect even in the case of an inspection object in which the surface shape changes and the surface has irregularities.
本考案の回転式超音波探傷ヘッドは、同ヘッドの移動
により柔軟な薄膜よりなるタイヤが回転しながら被検査
物の表面に接触し、主軸のプローブ内蔵部に挿入された
プローブがタイヤ及び超音波媒体を介して被検査物に超
音波を発受信し欠陥を検出することによって、凹凸があ
り表面形状が変化する被検査物の場合にも容易に欠陥を
検出することができる感度の良好なプローブを実現する
ことができた。In the rotary ultrasonic flaw detection head of the present invention, the movement of the head causes the tire made of a flexible thin film to rotate and come into contact with the surface of the object to be inspected. A probe with good sensitivity that can detect defects easily even in the case of an inspected object that has irregularities and changes in surface shape by transmitting and receiving ultrasonic waves to the inspected object through the medium and detecting the defect. Could be realized.
第１図は本考案の一実施例の外観図、第２図は上記一実
施例の断面図、第３図は第２図のIII-III矢視図、第４
図は従来の装置の説明図である。 １……主軸、1a……プローブ内蔵部、２……オイルシー
ル、３……ベアリングリテーテ、４……ガイドリング、
５……タイヤ、６……ガイドローラ、７……Ｏリング、
８……エアブリーダ、９……ベアリング、10……ベアリ
ングリテーナ、11……プローブ、12……Ｏリング、13…
…ベアリング、14……コードジョイント、15……コー
ド、16……超音波媒体。FIG. 1 is an external view of an embodiment of the present invention, FIG. 2 is a sectional view of the above embodiment, FIG. 3 is a view taken along the line III-III of FIG. 2, and FIG.
The figure is an explanatory view of a conventional device. 1 ... spindle, 1a ... probe built-in part, 2 ... oil seal, 3 ... bearing retainer, 4 ... guide ring,
5 ... Tire, 6 ... Guide roller, 7 ... O-ring,
8 ... Air bleeder, 9 ... Bearing, 10 ... Bearing retainer, 11 ... Probe, 12 ... O-ring, 13 ...
… Bearing, 14 …… Cord joint, 15 …… Cord, 16 …… Ultrasonic medium.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 丸川 隆 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)考案者 高田 裕孝 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)考案者 神前 康夫 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)考案者 北野 昇 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (56)参考文献 特開 昭64−65445（ＪＰ，Ａ) 特開 平２−44247（ＪＰ，Ａ) 実開 昭57−116863（ＪＰ，Ｕ) 実公 昭45−10471（ＪＰ，Ｙ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takashi Marukawa 10 Oe-cho, Minato-ku, Nagoya, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works (72) Yutaka Takada Oe-cho, Minato-ku, Aichi Prefecture No. 10 Mitsubishi Heavy Industries, Ltd. in Nagoya Aerospace Systems Works (72) Creator Yasuo Kamimae 10 Oemachi, Minato-ku, Nagoya, Aichi Prefecture No. 10 Mitsubishi Heavy Industries, Ltd. in Nagoya Aerospace Systems Works (72) Inventor Noboru Kitano Aichi Prefecture 10 Oemachi, Minato-ku, Nagoya Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works (56) References JP 64-65445 (JP, A) JP 2-44247 (JP, A) Practical application Sho 57 -116863 (JP, U) S.K. 45-10471 (JP, Y1)
Claims (1)
ーブ内蔵部を有する車軸、上記プローブ内蔵部の一側方
に位置する上記車軸の一端に一方のベアリングと一方の
ベアリングリテーナを介して設けられたガイドローラ、
同ガイドローラに設けられたエアブリーダ、上記プロー
ブ内蔵部の他側方に位置する上記車軸の他端側に設けら
れ他方のベアリング及び他方のベアリングリテーナを介
して設けられたガイドリング、上記一方と他方のベアリ
ングリテーナの外周を包むように設けられた柔軟な薄膜
よりなるタイヤ、同タイヤと上記車軸のプローブ内蔵部
の間に封入された超音波媒体を備えたことを特徴とする
回転式超音波探傷ヘッド。1. An axle having a probe built-in portion into which a probe is inserted through a seal, and one axle and one bearing retainer provided at one end of the axle located on one side of the probe built-in portion. Guide rollers,
An air bleeder provided on the guide roller, a guide ring provided on the other end side of the axle located on the other side of the probe built-in portion via the other bearing and the other bearing retainer, the one and the other Of a flexible thin film provided so as to wrap around the outer periphery of the bearing retainer, and a rotary ultrasonic flaw detection head comprising an ultrasonic medium enclosed between the tire and the probe built-in portion of the axle. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1872290U JPH082611Y2 (en) | 1990-02-28 | 1990-02-28 | Rotary ultrasonic flaw detection head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1872290U JPH082611Y2 (en) | 1990-02-28 | 1990-02-28 | Rotary ultrasonic flaw detection head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03110362U JPH03110362U (en) | 1991-11-12 |
| JPH082611Y2 true JPH082611Y2 (en) | 1996-01-29 |
Family
ID=31521869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1872290U Expired - Lifetime JPH082611Y2 (en) | 1990-02-28 | 1990-02-28 | Rotary ultrasonic flaw detection head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082611Y2 (en) |
-
1990
- 1990-02-28 JP JP1872290U patent/JPH082611Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03110362U (en) | 1991-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |