JPH0219795A - Driving device for neutron detector - Google Patents

Driving device for neutron detector

Info

Publication number
JPH0219795A
JPH0219795A JP63168992A JP16899288A JPH0219795A JP H0219795 A JPH0219795 A JP H0219795A JP 63168992 A JP63168992 A JP 63168992A JP 16899288 A JP16899288 A JP 16899288A JP H0219795 A JPH0219795 A JP H0219795A
Authority
JP
Japan
Prior art keywords
neutron detector
detector
roller
guide pipe
cable
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.)
Pending
Application number
JP63168992A
Other languages
Japanese (ja)
Inventor
Isao Yoshinaga
功夫 好永
Toshikazu Edajima
枝嶋 敏数
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP63168992A priority Critical patent/JPH0219795A/en
Publication of JPH0219795A publication Critical patent/JPH0219795A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

PURPOSE:To prevent a drive cable from being bent at the time of inserting a neutron detector of a large dimension into a guide pipe, and also, to improve the reliability of the detector by attaching unitedly a driving device and the detector to the tip of the drive cable. CONSTITUTION:When a wire cable 2 is rotated as indicated with an arrow A by a power source of the outside of a guide pipe 13, one of a pair of bevel gears 3 which have been attached to its end part is driven, and accordingly, rotational force is transferred to a pulley 4 through the other bevel gear and a shaft. Also, this rotational force is transferred through pulleys 5-7 and rotates a roller 12. This roller 12 is attached to the tip of four pieces of arms 10, and in order to prevent a slide against the inside surface of the guide pipe 13, a compression coil spring 11 is provided between a driving device body 1 and each arm 10, and the roller 12 is pressed against the inside surface of the guide pipe 13. In such a way, when the cable 2 is rotated, the roller 12 rolls, and a neutron detector 14 which has been attached to the body 1 moves through the inside of the guide pipe 13.

Description

【発明の詳細な説明】 〔座業上の利用分野〕 この発明は、原子炉炉内核計装装置のうちの1つである
中性子検出器駆動装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Sedentary Use] The present invention relates to a neutron detector drive device, which is one of the nuclear instrumentation devices in a nuclear reactor.

(従来の技術〕 第5図は、例えば実公昭56−20462号公報に記載
された従来の中性子検出器駆動装置を示し、図において
、巻取りドラム(20)はドライブグープル(21)を
巻取るもので、緩衝カップリング(22)を備えている
。スプロケット(23)はチェーン(24)とかみ合い
、動力を伝達するためのものである。スリップクラッチ
(25)は減速機付モータ(26)に軸結合している。
(Prior Art) FIG. 5 shows a conventional neutron detector drive device described in, for example, Japanese Utility Model Publication No. 56-20462. In the figure, a winding drum (20) winds a drive group (21). It is equipped with a buffer coupling (22).The sprocket (23) engages with the chain (24) to transmit power.The slip clutch (25) is connected to the motor (26) with a reduction gear. It is axially connected to.

押えプーリ(27)はドライブホイール(28)K圧接
してドライブケーブル(21)を押圧している。
The presser pulley (27) presses against the drive wheel (28) K and presses the drive cable (21).

ドライブグープル(21に結合された小形の中性子検出
器(29、)は案内管(30)で案内される。
A small neutron detector (29,) coupled to the drive group (21) is guided by a guide tube (30).

(31)はアイドラー (32)は減速機である。小形
の中性子検出器(29)は原子炉内の中性子束を測定す
るためのものであり、ドライブケーブル(21)の先端
に溶接などにより結合されている。
(31) is an idler and (32) is a speed reducer. A small neutron detector (29) is used to measure the neutron flux inside the nuclear reactor, and is connected to the tip of the drive cable (21) by welding or the like.

案内管(30)はステンレス管よりなり、原子炉内部ま
で廷設されている。
The guide tube (30) is made of a stainless steel tube and extends to the inside of the reactor.

以上の構成により、ドライブケーブル(2x)ktヘリ
カルワイヤであり、円周面が歯車状のドライブホイール
(28)とかみ合い、ドライブグープル(21)をスリ
ップすることなく走行させる。押えプーリ(27)は、
ドライブホイール(28)の駆動によりドライブクープ
ル(21)が上方に逃げるのを防いでいる。
With the above configuration, the drive cable (2x) is a kt helical wire and meshes with the drive wheel (28) whose circumferential surface is gear-shaped, causing the drive group (21) to run without slipping. The presser pulley (27) is
The driving of the drive wheel (28) prevents the drive couple (21) from escaping upward.

巷取りドラム(20)の駆動は、減速機付モータ(26
)の動力なチェーン(24)、減速機(32)、緩衝カ
ップリング(22)により伝達して行わする。
The width drum (20) is driven by a motor (26) with a reduction gear.
), the power is transmitted by a chain (24), a speed reducer (32), and a buffer coupling (22).

ここで、アイドラー(31)はチェーン(24)の伸ひ
によるたわみを吸収する。、tJJカップリング(22
)はドライブホイール(28)によるドライフケ−プル
(21)の送り速度と巻取りドラム(2o)によるクー
プルの巻取り速度の差を吸収する。スリップクラッチ(
25)は小形中性子検出器(29)が障害物に肖ったと
きに検出器(29)やドライフケ−プル(21)を保麹
する。
Here, the idler (31) absorbs the deflection due to the stretching of the chain (24). , tJJ coupling (22
) absorbs the difference between the feeding speed of the dry cable (21) by the drive wheel (28) and the winding speed of the couple by the winding drum (2o). Slip clutch (
25) protects the small neutron detector (29) and the dry cable (21) when the small neutron detector (29) encounters an obstacle.

〔発明か解決しようとする課題〕[Invention or problem to be solved]

従来の中性子検出器駆動装置は以上のように構成されて
おり、案内管と検出器あるいはドライブケーブルとのす
ぎまはほとんどないが、広域糸。
The conventional neutron detector drive device is constructed as described above, and although there is almost no interference between the guide tube and the detector or drive cable, it is a wide area thread.

出力領域糸のような形状の犬ぎな中性子検出器を曲がっ
た案内管に挿入するためには、検出器は長手方向に長い
ため某内′aの内径ケ検出器の外径よりもある根度大き
くする必要がある。従って、案内管と検出器のすきまは
非倉に大きくなり、検出器の挿入、引抜き時の検出器信
頼性およびドライブケーブルが屈曲するなどの四鴎点が
あった。
Output region In order to insert a dog-shaped neutron detector shaped like a string into a curved guide tube, the detector is long in the longitudinal direction, so the inner diameter of the inner diameter must be a certain degree larger than the outer diameter of the detector. It needs to be bigger. Therefore, the gap between the guide tube and the detector becomes extremely large, which causes problems such as the reliability of the detector during insertion and removal of the detector, and the bending of the drive cable.

この発明は上記のような間り点ン解消するためになされ
たもので、広域系、出力領域系のように寸法の大きい検
出器を案内管に挿入するときのドライブケーブルの屈曲
を防ぐとともに中性子検出器の信頼性を向上させること
ができる中性子検出器駆動装置を得ることを目的とする
This invention was made to eliminate the above-mentioned problems.It prevents bending of the drive cable when inserting a large-sized detector such as a wide area system or an output area system into a guide tube, and also prevents neutrons from being bent. The object of the present invention is to obtain a neutron detector driving device that can improve the reliability of the detector.

〔課題を解決するだめの手段〕[Failure to solve the problem]

この発明に係る中性子検出器駆動装置は、ドライブケー
ブルの先端に駆vJ装置と中性子検出器が一体にして取
付けられている。
In the neutron detector drive device according to the present invention, the drive VJ device and the neutron detector are integrally attached to the tip of the drive cable.

〔作 用] この発明における中性子検出器駆動装置は、駆動装部−
に取+Iけられた4個のアーム先端リローラを案内管内
面に圧縮コイルはねにより圧接し、ローラを駆動するこ
とにより、駆動装渦に設置さf+だ中性子検出器を案内
管に挿脱する。
[Function] The neutron detector drive device according to the present invention has a drive unit.
The four arm tip re-rollers attached to +I are pressed against the inner surface of the guide tube by compression coil springs, and by driving the rollers, the f+ neutron detector installed in the drive unit vortex is inserted into and removed from the guide tube. .

〔実施例〕〔Example〕

第1図、第2図はこの発明の一実施例を示し、(1)は
駆動装置本体、(2)は案内管(13)の外部まで延設
されているワイヤーケーブルであり、1対のかさ歯車(
3)の1方に取付けられている。かさ歯車(3)の他方
は、軸を介しプーリ(4)に連結されており、並設され
たプーリ(5)、タイミングベルト(8)により動力が
伝達される。プーリ(5)とプーリ(6)は同一の軸に
取付けられ、タイミングベル) (9) 、プーリ(7
)を介してローラ(12)を回転させる。
FIGS. 1 and 2 show an embodiment of the present invention, in which (1) is a drive device main body, (2) is a wire cable extending to the outside of a guide tube (13), and a pair of wire cables. Helical gear (
3) is attached to one side. The other end of the bevel gear (3) is connected to a pulley (4) via a shaft, and power is transmitted by a pulley (5) and a timing belt (8) arranged in parallel. Pulley (5) and pulley (6) are mounted on the same shaft, and the timing bell (9) and pulley (7)
) to rotate the roller (12).

案内管(13)の内面に4個のローラ(12)を圧接キ
せるために本体(1)と各アーム(10)の間に圧縮コ
イルはね(11)を設置している。
A compression coil spring (11) is installed between the main body (1) and each arm (10) in order to press the four rollers (12) against the inner surface of the guide tube (13).

(14)は駆動装置本体(1)に取付けられた中性子検
出器であり、信号は、ドライブケーブル(16)内のM
Iケーブル(15)で外部に取出される。
(14) is a neutron detector attached to the drive device main body (1), and the signal is transmitted from M in the drive cable (16).
It is taken out to the outside using the I cable (15).

次に動作について説明する。案内管(13)の外部にあ
る動力源により、ワイヤーケーブル(2)を第1図に矢
印(Atで示したように回転させると、ワイヤーケーブ
ル(2)の端部に取付けられたかさ歯車対(3)の1方
が駆動され、他方のかさ歯車と軸を介して連結されたプ
ーリ(4)に回転力は伝達される。さらにこの回転力は
タイミングベルト(8)によりプーリ(5)に伝わり、
プーリ(5)とプーリ(6)とは同一の佃!に取付けら
れているので、グー1月6)が駆動されることによりタ
イミングベルト(9)を介し回転力はプーリ(7)に伝
達される。従って、ブー1月7)と同じ軸に取付けられ
たローラ(12)は回転する。
Next, the operation will be explained. When the wire cable (2) is rotated as shown by the arrow (At) in Fig. 1 by a power source located outside the guide tube (13), the bevel gear pair attached to the end of the wire cable (2) rotates. (3) is driven, and the rotational force is transmitted to the pulley (4) which is connected to the other bevel gear via the shaft.Furthermore, this rotational force is transmitted to the pulley (5) by the timing belt (8). transmitted,
Pulley (5) and pulley (6) are the same Tsukuda! Since the timing belt 6) is driven, the rotational force is transmitted to the pulley (7) via the timing belt (9). Therefore, the roller (12) mounted on the same shaft as Boo January 7) rotates.

ローラ(12)は、4個のアーム(10)の先端に取付
けられ、案内管(13)の内面とのすべりを防ぐために
、駆動装置本体(1)と各アーム(10)の間に圧縮コ
イルはね(11)を設置し、ローラ(12)を案内管(
13)の内面に圧接している。
The roller (12) is attached to the tips of the four arms (10), and a compression coil is installed between the drive unit body (1) and each arm (10) to prevent it from sliding against the inner surface of the guide tube (13). Install the spring (11) and move the roller (12) to the guide tube (
13).

本装置は以上のように構成されているので、ワイヤーク
ープル(2)を回転させることによりローラ(12)が
転動し、検出器(14)は案内管(13)の内部を移動
する。
Since this device is configured as described above, the roller (12) rolls by rotating the wire couple (2), and the detector (14) moves inside the guide tube (13).

上記実施例では、駆動機構としてワイヤーケーブル(2
)、かさ歯車対(3)を用いたが、他の実施例として第
3図、第4図に示したように、駆動源として油圧モータ
(17)を用いてもよい。(] 8 )A 19)は、
案内’Ft (t 3 )の外部にある動力源から油圧
モータ(17)を駆動させるための油圧を送り込むため
の配管である。その他、第1図、第2図におけると同一
符号は同一部分である。
In the above embodiment, the drive mechanism is a wire cable (2
), a pair of bevel gears (3) is used, but as another embodiment, as shown in FIGS. 3 and 4, a hydraulic motor (17) may be used as the drive source. (] 8) A 19) is
This is a pipe for sending hydraulic pressure for driving the hydraulic motor (17) from a power source located outside the guide 'Ft (t 3 ). In addition, the same reference numerals as in FIGS. 1 and 2 indicate the same parts.

以上の構成により、同様の効果が得られる。With the above configuration, similar effects can be obtained.

また、上記の各実施例では、4個のローラ(12)のう
ち2個のローラを駆動する例について示したが、11固
あるいはすべてのローラを駆動してもよ一一。
Further, in each of the above embodiments, an example was shown in which two of the four rollers (12) are driven, but it is also possible to drive only 11 or all the rollers.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、中性子検出器と駆動
装置を一体化したので、検出器挿入時のドライブグープ
ルの屈曲を防ぐことができ、中性子検出器の信頼性を高
めることができる。
As described above, according to the present invention, since the neutron detector and the drive device are integrated, bending of the drive group when the detector is inserted can be prevented, and the reliability of the neutron detector can be improved. .

4、 図面の簡単なii5?、明 第1図はこの発明の一実施例の側断面図、第2図は第1
図のものの平面図、第3図は他の実施例の側断面図、第
4図は第3図のものの平面図、第5図は従来の中性子検
出器駆動装置の概略斜視図である。
4. Simple drawing ii5? , FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG.
3 is a side sectional view of another embodiment, FIG. 4 is a plan view of the same as shown in FIG. 3, and FIG. 5 is a schematic perspective view of a conventional neutron detector driving device.

(1)・・駆動装置本体、(10)・・アーム、(12
)・・ローラ、(13)’ ”案内管、(14)・・中
性子検出器。
(1)... Drive unit body, (10)... Arm, (12
)...roller, (13)''' guide tube, (14)...neutron detector.

なお、各図中、同一符号は同−又しす84当名す分−季
・示す。
In each figure, the same reference numerals indicate the same numbers.

Claims (1)

【特許請求の範囲】[Claims] 中性子検出器を案内するための案内管と、アームを介し
て前記案内管の内壁に圧接する複数個のローラを備え前
記中性子検出器と一体に結合されている駆動装置本体と
、前記案内管の外部にあつて前記ローラの少なくとも1
つに回転力を与えるための動力源とを備えてなる中性子
検出器駆動装置。
a guide tube for guiding the neutron detector; a driving device main body integrally connected to the neutron detector; At least one of the rollers is external.
A neutron detector drive device comprising: a power source for applying rotational force to a neutron detector;
JP63168992A 1988-07-08 1988-07-08 Driving device for neutron detector Pending JPH0219795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63168992A JPH0219795A (en) 1988-07-08 1988-07-08 Driving device for neutron detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63168992A JPH0219795A (en) 1988-07-08 1988-07-08 Driving device for neutron detector

Publications (1)

Publication Number Publication Date
JPH0219795A true JPH0219795A (en) 1990-01-23

Family

ID=15878347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63168992A Pending JPH0219795A (en) 1988-07-08 1988-07-08 Driving device for neutron detector

Country Status (1)

Country Link
JP (1) JPH0219795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1571676A2 (en) * 2004-01-09 2005-09-07 Korea Electric Power Corporation Neutron flux mapping system for nuclear reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1571676A2 (en) * 2004-01-09 2005-09-07 Korea Electric Power Corporation Neutron flux mapping system for nuclear reactor
US7133488B2 (en) * 2004-01-09 2006-11-07 Korea Electric Power Corporation Neutron flux mapping system for nuclear reactor
EP1571676A3 (en) * 2004-01-09 2007-08-15 Korea Electric Power Corporation Neutron flux mapping system for nuclear reactor

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