JPS5815155A - Ultrasonic flaw detector for lower mirror of atomic reactor pressure vessel - Google Patents
Ultrasonic flaw detector for lower mirror of atomic reactor pressure vesselInfo
- Publication number
- JPS5815155A JPS5815155A JP56113463A JP11346381A JPS5815155A JP S5815155 A JPS5815155 A JP S5815155A JP 56113463 A JP56113463 A JP 56113463A JP 11346381 A JP11346381 A JP 11346381A JP S5815155 A JPS5815155 A JP S5815155A
- Authority
- JP
- Japan
- Prior art keywords
- lower mirror
- track
- skirt
- ultrasonic flaw
- arm
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- 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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
-
- 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
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2695—Bottles, containers
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、原子炉圧力容器下鏡用超音波探傷装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic flaw detection device for a lower mirror of a nuclear reactor pressure vessel.
従来の下鏡用超音波探傷装置を第１図に、そのＩＩ−Ｉ
Ｉ矢視図を第２図に示す。A conventional ultrasonic flaw detection device for lower scope is shown in Fig. 1, and its II-I
A view from the I arrow is shown in Fig. 2.
図において、超音波探傷装置の□駆動部２は、複数個の
ガイド車５を介して下鏡用軌道１に取シ付けられている
。この下鏡用軌道１は、サポート８とサポート支え９を
介し、下鏡スカート７に固定されている。駆動部２に設
けられた駆動用ビニオ／６が下鏡用軌道１に設けたラッ
ク１１と噛合うことにより、駆動部２は走行する。この
駆動部２には、アーム３、探触子４からなる探傷部がア
ーム支え１０を介し駆動部２に取付けられる。In the figure, a □ drive unit 2 of the ultrasonic flaw detection device is attached to a lower mirror track 1 via a plurality of guide wheels 5. This lower mirror track 1 is fixed to the lower mirror skirt 7 via a support 8 and a support support 9. The drive unit 2 travels by meshing the drive pinion/6 provided on the drive unit 2 with the rack 11 provided on the lower mirror track 1. A flaw detection section consisting of an arm 3 and a probe 4 is attached to the drive section 2 via an arm support 10.
上述する探傷装置において、探傷時には探触子４を下鏡
１８に押圧する。この為、駆動部２には押圧力の反力が
加わる。更に、駆動部２には、探傷装置の一自重により
ａ方向のモーメントが作用する。この結果、ガイド車５
にも大きな荷重が加わシ下鏡用軌道１にねじれを発生す
る。上記の事情から、ガイド車５はその数を増して強度
を上げ、下鏡用軌道１およびサポート８もそれぞれ強度
を上げる必要があった。In the flaw detection apparatus described above, the probe 4 is pressed against the lower mirror 18 during flaw detection. Therefore, a reaction force of the pressing force is applied to the drive unit 2. Further, a moment in the direction a is applied to the drive unit 2 due to the dead weight of the flaw detection device. As a result, guide car 5
A large load is applied to the lower mirror track 1, causing twisting. Due to the above-mentioned circumstances, it was necessary to increase the number of guide wheels 5 to increase their strength, and to increase the strength of the lower mirror track 1 and the support 8, respectively.
又、駆動部２は下鏡用軌道１をガイド車５ではさみ込ん
でいる為、下鏡用軌道１は必然的にその巾が広くなシ大
型化する欠点があった。Further, since the drive unit 2 sandwiches the lower mirror track 1 between the guide wheels 5, the lower mirror track 1 inevitably has a wide width and is large in size.
本発明の目的は、下鏡用軌道を小型化し、かつ、強度的
に安全なものとした下鏡用超音波探傷装置を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrasonic flaw detection device for a lower mirror in which the lower mirror track is made smaller and safer in terms of strength.
この目的に沿うために本発明の下鏡用超音波探傷装置は
探傷部を下鏡用軌道からつり下げる構造とすることによ
り、下鏡用軌道にモーメントを作用させないようにし、
下鏡用軌道を小型化し、かつ強度的に安全なものとした
ことを特徴とする。In order to meet this objective, the ultrasonic flaw detection device for the lower mirror of the present invention has a structure in which the flaw detection part is suspended from the lower mirror track, so that no moment is applied to the lower mirror track.
It is characterized by having a smaller orbit for the lower mirror and making it strong and safe.
以下、本発明の一実施例を第３図により説明する。第３
図に示すように、下鏡用軌道ｌは、サポート８、サポー
ト支え９を介して下鏡スカート７に取シ付けである。駆
動部２には、アーム支え１０を介しアーム３が取シ付け
られており、このアーム３の両端には、アーム押え車１
７が取シ付けられ、このアーム押え車１７は下鏡１８に
接触している。駆動部２は、１個の、あるいは複数個の
車１５により下鏡スカート７と接触する。駆動部２に取
りつけられた駆動用ピニオン６と、下鏡用軌道１に取り
付けられたラック１１とが噛み合うことにより駆動部２
は、下鏡用軌道１に沿って走行する。駆動部２の走行を
スムーズに行なっために装置つり下げアーム１６Ａには
主ローラ１３、副ローラ１４が取シつけられている。探
触子４を下鏡スカート７に押し付ける力の反力と１．駆
動部２、アーム３等の自重とから発生するモーメントａ
は、駆動部２に取シ付けられた車１５を介して下鏡スカ
ート７が受けることになる。この為、下鏡用軌道１には
反力およびモーメントａは全く作用しない。ここで、下
鏡用軌道１に作用する力は重力方向に駆動部２、アーム
３などの自重だけである。その為に下鏡用軌道１は、駆
動装置２、アーム３などの自重に耐えられればよいので
、第３図に示すように小型化が可能となり、その分、強
度的な安全性も増加する。更に、本発明による下≠周軌
道１は、駆動装置２をつり下げる構造であるため、その
断面形状は、第３図に示すように非常に簡単矩形構造と
する事が可能である。An embodiment of the present invention will be described below with reference to FIG. Third
As shown in the figure, the lower mirror track 1 is attached to the lower mirror skirt 7 via a support 8 and a support support 9. An arm 3 is attached to the drive unit 2 via an arm support 10, and an arm presser wheel 1 is attached to both ends of the arm 3.
7 is attached, and this arm presser wheel 17 is in contact with the lower mirror 18. The drive unit 2 comes into contact with the lower mirror skirt 7 by one or more wheels 15. The drive pinion 6 attached to the drive unit 2 and the rack 11 attached to the lower mirror track 1 mesh with each other, so that the drive unit 2
travels along the lower mirror track 1. In order to allow the drive section 2 to run smoothly, a main roller 13 and a sub roller 14 are attached to the device suspension arm 16A. The reaction force of the force pressing the probe 4 against the lower mirror skirt 7 and 1. Moment a generated from the weight of the drive unit 2, arm 3, etc.
is received by the lower mirror skirt 7 via a wheel 15 attached to the drive section 2. Therefore, no reaction force or moment a acts on the lower mirror track 1 at all. Here, the force acting on the lower mirror track 1 is only the weight of the drive unit 2, arm 3, etc. in the direction of gravity. Therefore, the lower mirror track 1 only needs to be able to withstand the weight of the drive device 2, arm 3, etc., so it can be made smaller as shown in Figure 3, and the strength and safety are increased accordingly. . Further, since the lower≠circumferential track 1 according to the present invention has a structure for suspending the drive device 2, its cross-sectional shape can be made into a very simple rectangular structure as shown in FIG.
このような構造とする事により、下鏡用軌道１は、その
加工が非常に簡単とな゛る。更に、本発明による駆動部
２に使用する主ローラ１３、副ローラ１４、車１５は、
その接触面がそれぞれ平面状であるため複雑な加工の必
要がないという利点がある。With this structure, the lower mirror track 1 can be processed very easily. Furthermore, the main roller 13, sub-roller 14, and wheel 15 used in the drive unit 2 according to the present invention are as follows:
Since the contact surfaces are each flat, there is no need for complicated machining.
又、クランプ１２により、駆動部２を下ケ、駆動用ピニ
オン６をラック１１から離すことのできる構造とするこ
とによシ、主ローラ１３と副ローラ１４を下鏡用軌道１
に取シ付けた後にクランプ１２で駆動部２を上げ駆動用
ピニオン６とラック１１とかみ合わせることによシ容易
に駆動装置２を下鏡用軌道１に取り付けることができる
。又、この逆の操作により駆動部２を下鏡用軌道１から
容易に取りはずす事ができる。更に、クランプ１２を操
作することにより、駆動用ピニオン６、主ローラ１３、
副ローラ１４と下鏡用軌道１が接触しているため、安全
性が増加する。In addition, by using a structure in which the drive unit 2 can be lowered and the driving pinion 6 can be separated from the rack 11 using the clamp 12, the main roller 13 and the sub roller 14 can be moved to the lower mirror track 1.
After mounting on the lower mirror track 1, the drive unit 2 is raised with the clamp 12 and engaged with the drive pinion 6 and the rack 11, thereby easily attaching the drive unit 2 to the lower mirror track 1. Further, by performing the reverse operation, the drive unit 2 can be easily removed from the lower mirror track 1. Furthermore, by operating the clamp 12, the driving pinion 6, the main roller 13,
Since the sub roller 14 and the lower mirror track 1 are in contact with each other, safety is increased.
本発明の応用例とし、駆動用ピニオン６を用いず車１５
の中の１個を駆動用とすることも可能である。As an application example of the present invention, the car 15 does not use the driving pinion 6.
It is also possible to use one of them for driving.
第３図の実施例の場合、駆動部２の位置検出は、第４図
に示すように、駆動用モータ１９と、駆動用ピニオン６
とを接続する駆動軸２０の回転数を中間歯車２３と歯車
２２を介してエンコーダ２１により検出する方法がある
が、第５図のように駆動用ピニオン６を使用しない場合
、駆動車２５の回転数を検出した場合は、駆動車２５と
下鏡用スカート７との間にすべりを生じ正確な位置検出
が望めない。そこで、走行用の駆動車２５と、位置検出
用の位置検出車２６とに分ける事により、駆動装置２か
ら駆動用ピニオン６を取りはずすことが可能となる。こ
のように位置検出車２６の走行する軌跡と探傷すべき溶
接線が異なっても、位置検出車２６により検出車された
位置を溶接線上の探触子４の位置への換算は容易であり
、何ら問題は生じない。In the case of the embodiment shown in FIG. 3, the position detection of the drive unit 2 is performed using a drive motor 19 and a drive pinion 6, as shown in FIG.
There is a method of detecting the rotation speed of the drive shaft 20 connecting the drive wheel 25 with the encoder 21 via the intermediate gear 23 and the gear 22, but if the drive pinion 6 is not used as shown in FIG. If the number is detected, slipping occurs between the drive wheel 25 and the lower mirror skirt 7, and accurate position detection cannot be expected. Therefore, by separating the drive wheel 25 for traveling and the position detection wheel 26 for position detection, it becomes possible to remove the drive pinion 6 from the drive device 2. In this way, even if the traveling trajectory of the position detection vehicle 26 and the weld line to be inspected are different, it is easy to convert the position detected by the position detection vehicle 26 to the position of the probe 4 on the weld line. No problems arise.
本実施例によれば、下鏡用軌道を小型化し、強度的に安
全なものとし、かつ軌道の製作を容易なものとし、更に
、下鏡用自動超音波探傷装置の下鏡用軌道への脱着を容
易とすることに効果がある。According to this embodiment, the lower mirror track is made smaller, stronger and safer, and the track is easier to manufacture.Furthermore, the lower mirror track of the automatic ultrasonic flaw detection device for the lower mirror can be made smaller. It is effective in making it easier to attach and detach.
本発明によれば、走行が安定するので探傷性能が向上し
、軌道、走車用車などを小型化し、強度的に安全なもの
とすることが可能である。According to the present invention, since running is stable, flaw detection performance is improved, and it is possible to downsize tracks, running cars, etc. and make them safer in terms of strength.
第１図は従来の下鏡用軌道への駆動部取付は概略図、第
２図は第１図の■−■矢視図、第３図は本発明による下
鏡用軌道への駆動装置取付は概略図、第４図、第５図は
駆動部構成図である。
１・・・下鏡用軌道、２・・・駆動部、訃・・ガイド車
、６・・・駆動用ピニオン、７・・・下鏡スカート、８
・・・サポ−１−１１１・・・ラック、１２・・・クラ
ンプ、１３・・・末子１ 図
￥：３凪
″ｌｌａ口Figure 1 is a schematic diagram of the conventional mounting of the drive unit on the lower mirror track, Figure 2 is a view from the ■-■ arrow in Figure 1, and Figure 3 is the installation of the drive unit on the lower mirror track according to the present invention. is a schematic diagram, and FIGS. 4 and 5 are configuration diagrams of the driving section. DESCRIPTION OF SYMBOLS 1... Lower mirror track, 2... Drive unit, tail... Guide wheel, 6... Drive pinion, 7... Lower mirror skirt, 8
... Support 1-111 ... Rack, 12 ... Clamp, 13 ... Youngest child 1 Figure ¥: 3 Nagi "lla mouth
Claims (1)
軌道に超音波探傷部を走行自在に吊り下げることを特徴
とする原子炉圧力容器下鏡用超音波探傷装置。 ２、原子炉圧力容器の下鏡スカートに軌道を設け、この
軌道に超音波探傷部を走行自在に吊り下けると共に、前
記超音波探傷部の前記下鏡スカートに当接する側にガイ
ドロールを設けたことを特徴とする原子炉圧力容器下鏡
用超音波探傷装置。[Claims] 1. An ultrasonic flaw detection device for a lower mirror of a nuclear reactor pressure vessel, characterized in that a track is provided on the lower mirror skirt of the reactor pressure vessel, and an ultrasonic flaw detection unit is suspended from the track so as to be movable. . 2. A track is provided on the lower mirror skirt of the reactor pressure vessel, and the ultrasonic flaw detection section is suspended from the track so as to be freely movable, and a guide roll is provided on the side of the ultrasonic flaw detection section that comes into contact with the lower mirror skirt. An ultrasonic flaw detection device for the lower mirror of a nuclear reactor pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56113463A JPS5815155A (en) | 1981-07-22 | 1981-07-22 | Ultrasonic flaw detector for lower mirror of atomic reactor pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56113463A JPS5815155A (en) | 1981-07-22 | 1981-07-22 | Ultrasonic flaw detector for lower mirror of atomic reactor pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5815155A true JPS5815155A (en) | 1983-01-28 |
| JPH0216469B2 JPH0216469B2 (en) | 1990-04-17 |
Family
ID=14612871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56113463A Granted JPS5815155A (en) | 1981-07-22 | 1981-07-22 | Ultrasonic flaw detector for lower mirror of atomic reactor pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815155A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522198A (en) * | 1978-08-01 | 1980-02-16 | Kraftwerk Union Ag | Monitoring bottom of cylindrical nuclerar reactor pressure container and device for inspection |
-
1981
- 1981-07-22 JP JP56113463A patent/JPS5815155A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522198A (en) * | 1978-08-01 | 1980-02-16 | Kraftwerk Union Ag | Monitoring bottom of cylindrical nuclerar reactor pressure container and device for inspection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0216469B2 (en) | 1990-04-17 |
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