JPH0220690Y2 - - Google Patents
Info
- Publication number
- JPH0220690Y2 JPH0220690Y2 JP1983027749U JP2774983U JPH0220690Y2 JP H0220690 Y2 JPH0220690 Y2 JP H0220690Y2 JP 1983027749 U JP1983027749 U JP 1983027749U JP 2774983 U JP2774983 U JP 2774983U JP H0220690 Y2 JPH0220690 Y2 JP H0220690Y2
- Authority
- JP
- Japan
- Prior art keywords
- welded
- probe
- flaw detection
- elastic
- storage chamber
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 239000000523 sample Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000009977 dual effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 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】
本考案は、例えば溶接Ｈ形鋼の溶接部を超音波
探傷する際に用いる走査装置に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a scanning device used for ultrasonic flaw detection of a welded part of a welded H-section steel, for example.
溶接Ｈ形鋼における溶接部の欠陥の有無の検査
を、溶接部全域に亘り高い欠陥検出能でかつ高速
探傷する方法を本出願人は特願昭56−200738号
（特開昭58−100750号公報）で提案した。しかし、
この特願昭56−200738号に添付の明細書には超音
波探触子の走査機構の概念を記載してあるのみ
で、実際には例えば接触媒質である水の問題等
種々のフアクターを加味しなければならない。 The present applicant has proposed a method for inspecting the presence or absence of defects in welded parts of welded H-section steel with high defect detection ability over the entire welded part and at high speed. The proposal was made in the official gazette). but,
The specification attached to this patent application No. 56-200738 only describes the concept of the scanning mechanism of the ultrasonic probe, but in reality it takes into account various factors such as the problem of water as a couplant. Must.
本考案は、本出願人が先に提案した特願昭56−
200738号による超音波探傷方法を実施するうえに
必要不可欠である走査装置を提供せんとするもの
である。 The present invention is based on the patent application filed in 1983, which was previously proposed by the applicant.
The purpose is to provide a scanning device that is indispensable for implementing the ultrasonic flaw detection method according to No. 200738.
すなわち本考案は、搬送されてくる溶接形鋼の
溶接部を超音波探傷する際に使用される走査装置
である。以下説明は溶接形鋼の下方に設置される
場合につき述べる。つまり上部に水を充満させる
ための弾性ベロフラムを備えた貯水室と、前記弾
性ベロフラムを臨むように前記貯水室の下方より
貯水室内に突出せしめられ、その上端部に探触子
を内嵌してなる探触子保持具と、該探触子保持具
とモータ間に介設され、モータの回転を前記溶接
部の巾方向への往復直線運動に変換して前記探触
子保持具に伝えるクランク機構と、前記貯水室の
弾性ベロフラムを溶接形鋼にタツチローラを介し
て密着せしめるための押圧付勢機構を具備して成
ることを要旨とする溶接形鋼の超音波探傷用走査
装置である。 That is, the present invention is a scanning device used when performing ultrasonic flaw detection on a welded part of a welded section steel being transported. The following description will be made regarding the case where the welded section is installed below the welded section. In other words, there is a water storage chamber having an elastic velofram in its upper part for filling with water, a water storage chamber that protrudes into the water storage chamber from below so as to face the elastic velofram, and a probe is fitted into the upper end of the water storage chamber. a crank which is interposed between the probe holder and the motor and which converts the rotation of the motor into reciprocating linear motion in the width direction of the welded portion and transmits the same to the probe holder; This is a scanning device for ultrasonic flaw detection of welded shaped steel, comprising a mechanism and a pressing mechanism for bringing the elastic velofram of the water storage chamber into close contact with the welded shaped steel via a touch roller.
以下、本考案を添付図面に示す一実施例に基づ
いて詳細に説明する。 Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.
図面において、１は本考案に係る溶接形鋼の超
音波探傷用走査装置であり、該走査装置１は特に
下面溶接部の検査に使用するもので、搬送されて
くる例えば溶接Ｈ形鋼Ａの下方に設置されるもの
である。 In the drawings, reference numeral 1 denotes a scanning device for ultrasonic flaw detection of welded section steel according to the present invention, and this scanning device 1 is used especially for inspection of the bottom welded part, and is used to detect, for example, welded H section steel A being transported. It is installed below.
すなわち、２は超音波の接触媒質である例えば
水を充満せしめてある貯水室であり、該貯水室２
の上部には水を充満させるための弾性ベロフラム
３が固定されている。本実施例では、前記貯水室
２を２重構成し、内外筒間に形成された環状空間
をエアー抜き室４としたものを示している。つま
り外筒５の上部側壁に設けられた水注入口６より
供給された水はエアー抜き室４でエアー抜き孔
４′よりエアーを抜いたのち、内筒７の下部側壁
円周上に適数個設けられた孔８を経て貯水室２に
導かれるように成されている。前記した様に貯水
室２を二重管構成することにより貯水室２内に充
満された水はエアーが混入しないのであるが、超
音波探傷時に後述する探触子が高速で振動した場
合には気泡の巻き込み及び振動開始時の気泡を取
除くべく前記ベロフラム３には適数個のエアー抜
き孔（図示せず）を開設している。なお、このエ
アー抜き孔から排出された水は前記貯水室２の外
周に延設された受水部９を経て排水口１０から外
部所定場所に排出するように成されている。また
前記エアー抜き孔には、Ｈ形鋼Ａの進行方向に設
けたものが特に有効に作する。 That is, 2 is a water storage chamber filled with a couplant for ultrasonic waves, for example, water;
An elastic bellow ram 3 for filling with water is fixed to the upper part of the tank. In this embodiment, the water storage chamber 2 has a double structure, and the annular space formed between the inner and outer cylinders is used as the air vent chamber 4. In other words, the water supplied from the water inlet 6 provided on the upper side wall of the outer cylinder 5 bleeds air from the air bleed hole 4' in the air bleed chamber 4. The water is introduced into the water storage chamber 2 through individual holes 8. As mentioned above, by configuring the water storage chamber 2 with double pipes, air does not enter the water filled in the water storage chamber 2, but if the probe, which will be described later, vibrates at high speed during ultrasonic flaw detection, A suitable number of air vent holes (not shown) are provided in the velofram 3 in order to remove air bubbles from being entrained and air bubbles at the start of vibration. The water discharged from the air vent hole is configured to pass through a water receiving portion 9 extending around the outer periphery of the water storage chamber 2, and then be discharged to a predetermined external location from a drain port 10. Moreover, the air vent hole provided in the direction of movement of the H-shaped steel A is particularly effective.
１１は、前記ベロフラム３を臨むように前記貯
水室２の下方より貯水室内に突出せしめられた探
触子保持具であり、その上端部には集束型の探触
子１２が内嵌されている。またこの探触子保持具
１１の下端部にはガイド棒１３が固着され、この
ガイド棒１３の両端は後述するクランク機構を収
設してなるケース１４に開設したガイド孔１５に
挿入されている。すなわち、前記探触子保持具１
１はケース１４の底部に固定されたモータ１６の
回転を、このモータ１６の出力軸１７と前記探触
子保持具１１下端間に介設されたクランク機構１
８により往復直線運動に変換され、前記ガイド棒
１３の作用でＨ形鋼Ａの溶接部の巾方向（図面に
おける左右方向）に高速で往復移動するように成
されているものである。 Reference numeral 11 denotes a probe holder that projects into the water storage chamber from below the water storage chamber 2 so as to face the bellofram 3, and a focusing type probe 12 is fitted into the upper end of the probe holder. . A guide rod 13 is fixed to the lower end of the probe holder 11, and both ends of the guide rod 13 are inserted into guide holes 15 formed in a case 14 housing a crank mechanism, which will be described later. . That is, the probe holder 1
1 controls the rotation of a motor 16 fixed to the bottom of the case 14 by a crank mechanism 1 interposed between the output shaft 17 of the motor 16 and the lower end of the probe holder 11.
8 into a reciprocating linear motion, and by the action of the guide rod 13, it is configured to reciprocate at high speed in the width direction of the welded portion of the H-section steel A (left-right direction in the drawing).
前記クランク機構１８は、本実施例の場合、モ
ータ１６の出力軸１７に接続される軸１９の先端
に偏心軸２０を突設し、この偏心軸２０と前記探
触子保持具１１の下端に突設した軸２１をクラン
ク軸２２で枢支連結したものを示している。 In this embodiment, the crank mechanism 18 has an eccentric shaft 20 protruding from the tip of a shaft 19 connected to the output shaft 17 of the motor 16, and an eccentric shaft 20 and a lower end of the probe holder 11. A protruding shaft 21 is pivotally connected by a crankshaft 22.
２３は前記モータ１６の支持台２４と前記受水
部９間に介設され、前記貯水室２のベロフラム３
をＨ形鋼Ａに密着せしめるための押圧付勢機構で
あり、前記支持台２４を貫通配設されたガイド棒
２５と、該ガイド棒２５に外嵌されたコイルスプ
リング２６および前記ガイド棒２５の先端に接続
された自在継手２７とから構成されている。 23 is interposed between the support stand 24 of the motor 16 and the water receiving section 9, and is connected to the bellofram 3 of the water storage chamber 2.
This is a pressing biasing mechanism for bringing the H-section steel A into close contact with the guide rod 25, which is disposed through the support base 24, a coil spring 26 fitted around the guide rod 25, and the guide rod 25. It consists of a universal joint 27 connected to the tip.
なお、２８は貯水室２内の水がクランク機構１
８を収設したケース１４内に入るのを防止するた
めの防水ベロフラムである。 In addition, 28 indicates that the water in the water storage chamber 2 is connected to the crank mechanism 1.
This is a waterproof velophram for preventing the case 8 from entering the case 14 in which it is housed.
以上述べた如く本考案装置によれば、探触子を
貯水室内において高速で振動させた場合において
もＨ形鋼と探触子走査部との追随が良好で、かつ
エアーの巻き込みが皆無となり、高精度な超音波
探傷が可能となる。ちなみに、本考案装置では、
70m／minで走行する溶接Ｈ形鋼を探触子の振動
数25Hz、振幅10mmで安定した動作で超音波探傷を
行なえた。 As described above, according to the device of the present invention, even when the probe is vibrated at high speed in the water storage chamber, the H-shaped steel and the probe scanning section can follow each other well, and there is no air entrainment. Highly accurate ultrasonic flaw detection becomes possible. By the way, with the device of this invention,
Ultrasonic flaw detection was performed on a welded H-section steel traveling at 70 m/min with stable operation at a probe frequency of 25 Hz and an amplitude of 10 mm.
図面は、本考案に係る走査装置の一実施例を示
す縦断正面図である。
１は走査装置、２は貯水室、３はベロフラム、
１１は探触子保持具、１２は探触子、１６はモー
タ、１８はクランク機構、２２は押圧付勢機構、
ＡはＨ形鋼。
The drawing is a longitudinal sectional front view showing an embodiment of a scanning device according to the present invention. 1 is a scanning device, 2 is a water storage chamber, 3 is a verofram,
11 is a probe holder, 12 is a probe, 16 is a motor, 18 is a crank mechanism, 22 is a press biasing mechanism,
A is H-shaped steel.
Claims (1)
する際に使用される走査装置であつて、探傷側一
端にエアー抜き孔を適数箇開設した弾性ベロフラ
ムをまた他端に別の弾性ベラフラムを備えた給水
可能な内筒と、この内筒の回りに環状の密閉空間
を形成しこれに水注入口とエアー抜き孔を備えて
給水のエアー抜き室を構成した外筒とで二重構成
された貯水室と、この貯水室の上記内筒の下方か
ら上記別の弾性ベロフラムを機密貫通して上記探
傷側の弾性ベロフラムに臨ませる探触子をその上
端部に内嵌させてなる探触子保持具と、該探触子
保持具とその下方のモータとの間に介設され、モ
ータの回転を上記溶接部の幅方向への往復直線運
動に変換して上記探触子保持具に伝えるクランク
機構と、上記貯水室の探傷側の弾性ベロフラムを
溶接形鋼に密着せしめるための押圧付勢機構を具
備して成ることを特徴とする溶接形鋼の超音波探
傷用走査装置。 This is a scanning device used to perform ultrasonic flaw detection on welded sections of welded steel sections that are being transported.It is a scanning device that uses an elastic velar frame with an appropriate number of air vent holes at one end of the flaw detection side, and another elastic velar frame at the other end. It has a dual structure, consisting of an inner cylinder that can be supplied with water, and an outer cylinder that forms an annular sealed space around this inner cylinder, and has a water inlet and an air bleed hole to form an air bleed chamber for the water supply. A probe comprising a water storage chamber and a probe fitted into the upper end of the inner cylinder of the water storage chamber, the probe passing through the other elastic velofram from below in a sealed manner to face the elastic velofram on the flaw detection side. The probe holder is interposed between the probe holder and the motor below the probe holder, and converts the rotation of the motor into a reciprocating linear motion in the width direction of the welded portion to the probe holder. 1. A scanning device for ultrasonic flaw detection of welded shaped steel, characterized in that it is equipped with a crank mechanism for transmitting the transmission, and a pressing mechanism for bringing the elastic velofram on the flaw detection side of the water storage chamber into close contact with the welded shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2774983U JPS59134058U (en) | 1983-02-25 | 1983-02-25 | Scanning device for ultrasonic flaw detection of welded shaped steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2774983U JPS59134058U (en) | 1983-02-25 | 1983-02-25 | Scanning device for ultrasonic flaw detection of welded shaped steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59134058U JPS59134058U (en) | 1984-09-07 |
| JPH0220690Y2 true JPH0220690Y2 (en) | 1990-06-05 |
Family
ID=30158631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2774983U Granted JPS59134058U (en) | 1983-02-25 | 1983-02-25 | Scanning device for ultrasonic flaw detection of welded shaped steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59134058U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5486987A (en) * | 1977-12-22 | 1979-07-10 | Tokyo Shibaura Electric Co | Ultrasonic scanner |
-
1983
- 1983-02-25 JP JP2774983U patent/JPS59134058U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5486987A (en) * | 1977-12-22 | 1979-07-10 | Tokyo Shibaura Electric Co | Ultrasonic scanner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59134058U (en) | 1984-09-07 |
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