EP0334765B1 - Gerät zur Reinigung von Löchern mit Innengewinde, insbesondere Löchern mit Innengewinde für Verschlussvorrichtungen von Zugangsöffnungen und Gucklöchern von Dampfkesseln von Kernkraftwerken - Google Patents

Gerät zur Reinigung von Löchern mit Innengewinde, insbesondere Löchern mit Innengewinde für Verschlussvorrichtungen von Zugangsöffnungen und Gucklöchern von Dampfkesseln von Kernkraftwerken Download PDF

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Publication number
EP0334765B1
EP0334765B1 EP89400840A EP89400840A EP0334765B1 EP 0334765 B1 EP0334765 B1 EP 0334765B1 EP 89400840 A EP89400840 A EP 89400840A EP 89400840 A EP89400840 A EP 89400840A EP 0334765 B1 EP0334765 B1 EP 0334765B1
Authority
EP
European Patent Office
Prior art keywords
holes
opening
machine
screwthreaded
axis
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
Application number
EP89400840A
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English (en)
French (fr)
Other versions
EP0334765A1 (de
Inventor
Antoine Gemma
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to AT89400840T priority Critical patent/ATE77268T1/de
Publication of EP0334765A1 publication Critical patent/EP0334765A1/de
Application granted granted Critical
Publication of EP0334765B1 publication Critical patent/EP0334765B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • B08B1/34—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis parallel to the surface

Definitions

  • the present invention relates to a machine for cleaning tapped holes distributed around the periphery of an opening.
  • the present invention applies very particularly to the cleaning of tapped holes used for holding by peripheral bolting the obturators of orifices such as the point holes and the eye holes of the steam generators of nuclear power plants.
  • the present invention proposes a machine making it possible to rationalize these operations, by ensuring positioning and displacement with very high precision and perfect repeatability of the cleaning brushes in the tapped holes to be cleaned, the essential phases of the cleaning process. can also be linked automatically or semi-automatically.
  • FIGS. 1 and 2 represent machines having the same structure and the same operating mode, but the dimensions of the different elements of which differ depending on whether it is cleaning a fist hole (Figure 1) or an eye hole ( Figure 2), the latter being much smaller in size, which makes it possible to have a machine which, although of similar structure, is of greater compactness .
  • the reference 1 designates the fist hole ( Figure 1) or the eye hole ( Figure 2), which will be designated subsequently by the term "orifice", orifice which has at its periphery a plurality of tapped holes 2 regularly distributed, used for the bolting of a shutter of this orifice 1.
  • the machine 3 first of all comprises means 4 for centering and clamping on the opening 1, which will make it possible to position it exactly on the axis of this opening, while also ensuring the maintenance of the machine by pressing on the wall of the opening, so that the body of the machine and the wall of the pipe where the opening 1 is made will be fully secured, without external support of the machine.
  • centering and clamping means 4 comprise a first flange 5 of diameter slightly greater than that of the opening 1, so as to have a shoulder bearing against the rim 6 of this opening, while another flange 7 penetrates inside the opening with the lowest possible clearance.
  • a radially expandable element for example an elastic ring 8, which will expand when the flanges 5 and 7 will be brought closer to each other, operation carried out by the operation of a capstan 9, made by the operator; the machine will then be clamped due to the tightening of the crown 8 against the wall 10 of the orifice 1.
  • the fixed part of the cleaning machine thus secured to the pipe of the steam generator supports an assembly 11 movable in rotation about the central axis 12 of the machine, axis which has been aligned with that of the opening 1 thanks to the centering means 4.
  • This moving element 11 supports a rotary brush 13 driven by a pneumatic motor / reduction gear assembly.
  • the rotary brush 13 will be able to be placed at the right of each of the holes 2 due to the rotation of the moving assembly 11.
  • indexing means 15 which comprise, for example, at the end of an arm 16 integral in rotation with the moving assembly 11, a cylindrical finger 17 having a diameter equal, to within a small clearance, to the internal diameter of the tapped holes 2.
  • This finger 17 is mounted on a plate 18 movable axially relative to the arm 16 under the effect of the operation of a handle 19 actuated by the 'operator.
  • the finger 17 will be able to position itself facing each of the holes 2 and the operation of the handle 19 will push the finger into this hole, immobilizing the moving element 11 in rotation.
  • the position of the arm is such that, once this immobilization carried out, the brush 13 is very precisely aligned on the axis of one of the holes 2, for example the holes diametrically opposite to that into which the finger 17 has penetrated, or else another of the holes.
  • an additional force recovery finger 20 is provided which will come to press the wall of the pipe not far from the hole, thus avoiding applying a significant force to it which would risk damaging the thread.
  • the brushing means will be moved in axial translation so as to cause the brush 13 in the tapped hole to be cleaned.
  • This movement of displacement is for example carried out by a hydraulic jack 22 supplied by a pipe 23 so as to control the advance or the retreat of the brush 13.
  • suction casing 25 retractable on a fixed part 26, the front part of which is pressed against the periphery of the tapped hole during the entire brushing operation.
  • an operating button 27 connected to the brush 13 allows the operator to remove the latter if necessary (for example, for cleaning), without the need to dismantle the machine and separate it from orifice 1.

Landscapes

  • Cleaning In General (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Brushes (AREA)

Claims (6)

1. Maschine (3) zum Reinigen von Gewindebohrungen (2), die um den Umfang einer Öffnung (1) verteilt angeordnet sind, insbesondere Gewindebohrungen, die zum Festhalten von Deckeln durch Verschraubung am Umfang dienen, die Öffnungen, wie Handlöcher und Beobachtungsfenster von Dampfgenerortoren in Nuklearanlagen, verschließen, enthaltend:
- Einrichtung (4) zum Zentrieren und Anflanschen an der Öffnung, die die Positionierung der Maschine in der Öffnungsachse (12) und ihre Fixierung durch Anlage an der Wand (10) dieser Öffnung sicherzustellen erlauben,
- Bürsteinrichtungen (13), die in einer festen radialen Distanz von der Achse der Öffnung angeordnet und beweglich sind:
. in Drehung um die Achse (12) der Öffnung derart, daß ihre Bahn einen Kreis beschreibt, der die Achsen der verschiedenen Gewindebohrungen, die im Umfang um die Öffnung verteilt sind, schneidet, um selektiv diese Bürsteinrichtungen über jeder der Gewindebohrungen zu positionieren, und
. in axialer Translation in einer Achse, die mit der Achse einer Gewindebohrung zusammenfällt, um das Einbringen dieser Bürsteinrichtungen in die Gewindebohrungen und ihr Zurückziehen aus der Gewindebohrung zu ermöglichen.
2. Maschine nach Anspruch 1, bei der weiterhin Einrichtungen (15) zum Verriegeln der Drehung der Bürsteinrichtungen gegenüber jeder der Gewindebohrungen vorgesehen sind.
3. Maschine nach Anspruch 2, bei der die Verriegelungseinrichtungen einen zurückziehbaren Finger (17) enthalten, der drehfest mit den Bürsteinrichtungen verbunden ist und in eine der anderen Gewindebohrungen als derjenigen, über der die Bürsteinrichtungen gerade positioniert sind, eindringt.
4. Maschine nach einem der Ansprüche 1 bis 3, enthaltend wieterhin Blas- und Absaugeinrichtungen (24), die mit den Bürsteinrichtungen zusammenwirken.
5. Maschine nach Anspruch 4, bei der weiterhin ein zurückziehbares Absauggehäuse (25) vorgesehen ist, das die Bürsteinrichtungen umgibt und sich um die Gewindebohrung derart anlegt, daß in dieser Umgebung der Saugraum umschlossen wird.
6. Maschine nach einem der Ansprüche 1 bis 5, bei der die Zentrier- und Anflanscheinrichtungen eine in radialer Richtung expandierbare Krone (8) enthalten, die zwischen zwei Flanschen (5,7) angeordnet ist, von denen eine (5) sich durch eine Schulter am Rand (6) der Öffnung (1) anlegen kann.
EP89400840A 1988-03-25 1989-03-24 Gerät zur Reinigung von Löchern mit Innengewinde, insbesondere Löchern mit Innengewinde für Verschlussvorrichtungen von Zugangsöffnungen und Gucklöchern von Dampfkesseln von Kernkraftwerken Expired - Lifetime EP0334765B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400840T ATE77268T1 (de) 1988-03-25 1989-03-24 Geraet zur reinigung von loechern mit innengewinde, insbesondere loechern mit innengewinde fuer verschlussvorrichtungen von zugangsoeffnungen und guckloechern von dampfkesseln von kernkraftwerken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803968A FR2629250A1 (fr) 1988-03-25 1988-03-25 Machine de nettoyage de trous taraudes, notamment les trous taraudes pour les obturateurs de trous de poing et de trous d'oeil des generateurs de vapeur des centrales nucleaires
FR8803968 1988-03-25

Publications (2)

Publication Number Publication Date
EP0334765A1 EP0334765A1 (de) 1989-09-27
EP0334765B1 true EP0334765B1 (de) 1992-06-17

Family

ID=9364662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400840A Expired - Lifetime EP0334765B1 (de) 1988-03-25 1989-03-24 Gerät zur Reinigung von Löchern mit Innengewinde, insbesondere Löchern mit Innengewinde für Verschlussvorrichtungen von Zugangsöffnungen und Gucklöchern von Dampfkesseln von Kernkraftwerken

Country Status (6)

Country Link
US (1) US4962566A (de)
EP (1) EP0334765B1 (de)
AT (1) ATE77268T1 (de)
DE (1) DE68901797T2 (de)
ES (1) ES2032661T3 (de)
FR (1) FR2629250A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028559A (zh) * 2011-10-10 2013-04-10 襄阳南车电机技术有限公司 清除螺纹漆膜的丝锥定位套

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724693A (en) * 1996-04-19 1998-03-10 Acd Tridon Inc. Apparatus for cleaning extruder head
US5983438A (en) * 1998-03-13 1999-11-16 Sony Corporation Sputter load lock O-ring cleaner
DE10304328B3 (de) * 2003-02-04 2004-04-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Reinigen einer technischen Oberfläche
CN101961716B (zh) * 2010-09-28 2013-01-23 桂林电子科技大学 环模智能自动清理装置
US11358261B2 (en) * 2011-02-17 2022-06-14 HYTORC Division Unex Corporation Apparatus for tightening threaded fasteners
CN106111569B (zh) * 2016-08-19 2018-08-10 浙江荣亿精密机械有限公司 一种干式螺母内孔去屑机
CN106076916B (zh) * 2016-08-19 2018-08-10 浙江荣亿精密机械有限公司 一种自动螺母内孔去屑机
CN107351093A (zh) * 2017-07-11 2017-11-17 中国科学院光电技术研究所 一种反应堆压力容器螺栓孔清洗检测机器人
CN113385471B (zh) * 2021-08-16 2021-10-29 南通银河水泵有限公司 一种自动化真空泵清洗装备
CN115739855A (zh) * 2022-10-31 2023-03-07 如东前进石油机械制造有限公司 一种蒸汽式套管螺纹清洗装置
CN116690295B (zh) * 2023-08-03 2023-10-20 江苏佳杰特种螺钉有限公司 一种紧固件攻丝后金属碎屑清理装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1659301A (en) * 1925-12-11 1928-02-14 Foster Wheeler Corp Handhole closure
US3810710A (en) * 1972-08-10 1974-05-14 J Ennemoser Vehicle wheel stud drill
FR2480167A1 (fr) * 1980-04-15 1981-10-16 Framatome Sa Dispositif de support et de deplacement d'un outil a l'interieur d'un piquage
US4485517A (en) * 1981-09-08 1984-12-04 Voigt Lothar A Device for automatically cleaning manhole rims
FR2611561A1 (fr) * 1987-02-26 1988-09-09 Creation Mecanismes Aut Asserv Dispositif de brossage d'alesages taraudes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028559A (zh) * 2011-10-10 2013-04-10 襄阳南车电机技术有限公司 清除螺纹漆膜的丝锥定位套

Also Published As

Publication number Publication date
US4962566A (en) 1990-10-16
ATE77268T1 (de) 1992-07-15
DE68901797T2 (de) 1992-12-10
EP0334765A1 (de) 1989-09-27
FR2629250A1 (fr) 1989-09-29
DE68901797D1 (de) 1992-07-23
ES2032661T3 (es) 1993-02-16

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