CS243933B1 - Device for body's motion for checking and repairing of reactor's pressure vessel - Google Patents

Device for body's motion for checking and repairing of reactor's pressure vessel Download PDF

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Publication number
CS243933B1
CS243933B1 CS844585A CS458584A CS243933B1 CS 243933 B1 CS243933 B1 CS 243933B1 CS 844585 A CS844585 A CS 844585A CS 458584 A CS458584 A CS 458584A CS 243933 B1 CS243933 B1 CS 243933B1
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motion
segment
pressure vessel
movement
solution
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CS844585A
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Czech (cs)
Slovak (sk)
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CS458584A1 (en
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Pavol Petrik
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Pavol Petrik
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Publication of CS243933B1 publication Critical patent/CS243933B1/en

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    • 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

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Abstract

Riešenie sa týká zariadenia pre pohyb telesa pre kontroly a opravy reaktorovej tlakovej nádoby, ktorým možno dosiahnúť posuvný a rotačný pohyb tohto telesa. Podstatou riešenia je, že pozostáva z pohybovej skrutky a matice s ozubením, ktorá je otočné uložená na dvoch axiálnych ložiskách, medzi nimi je segment, ktorého nos zapadá do drážky v pohybovej skrutke a tento segment možno elektromagnetickou spojkou zafixovat vzhfadom na základovú došku. Tým sa dosiahne redukcia zdvíhacieho a otočného mechanizmu do jedného celku. Riešenie je možné využit tam, kde je potřebné jedným zariadením dosiahnúť posuvný i rotačný pohyb.The solution relates to a device for moving the body for reactor pressure control and repair containers that can be moved and the rotational movement of the body. The essence The solution is that it consists of motion bolts and nuts with gearing that is rotatable mounted on two axial bearings among them is a segment whose nose fits into the groove in the motion screw and this segment can be an electromagnetic clutch fix it with respect to the thatch. This results in a reduction in lifting and rotary mechanism into one unit. The solution can be used where it is needed one device to reach sliding rotational motion.

Description

Riešenie sa týká zariadenia pre pohyb telesa pre kontroly a opravy reaktorovej tlakovej nádoby, ktorým možno dosiahnúť posuvný a rotačný pohyb tohto telesa. Podstatou riešenia je, že pozostáva z pohybovej skrutky a matice s ozubením, ktorá je otočné uložená na dvoch axiálnych ložiskách, medzi nimi je segment, ktorého nos zapadá do drážky v pohybovej skrutke a tento segment možno elektromagnetickou spojkou zafixovat vzhfadom na základovú došku. Tým sa dosiahne redukcia zdvíhacieho a otočného mechanizmu do jedného celku. Riešenie je možné využit tam, kde je potřebné jedným zariadením dosiahnúť posuvný i rotačný pohyb.The present invention relates to a device for moving a body for inspecting and repairing a reactor pressure vessel by means of which a sliding and rotary movement of the body can be achieved. The essence of the solution is that it consists of a movement screw and a toothed nut which is rotatably mounted on two axial bearings, between which there is a segment whose nose fits into a groove in the movement screw and this segment can be fixed with an electromagnetic clutch against the foundation. This achieves a reduction of the lifting and rotating mechanism in one unit. The solution can be used where it is necessary to achieve both sliding and rotary movement with one device.

Obr. 1Fig. 1

Vynález sa týká zariadenia pre pohyb tělesa pre kontroly a opravy reaktorovej tlakovej nádoby, ktorým možno dosiahnuť posuvný a rotačný pohyb tohto telesa.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for moving a body for inspecting and repairing a reactor pressure vessel by means of which a sliding and rotational movement of the body can be achieved.

Pri periodických kontrolách a případných opravách reaktorové]' tlakovej nádoby sa používá pre pohyb telesa pre kontroly a opravy žeriav. V důsledku nepřesného Chodu mechanizmov žeriava dochádza k rázom, k vychylovaniu telesa zo zvislej polohy, obtiažne je nastavenle telesa, vzhfadom na súradnice chyby. Žeriav nemožno, použit na iné. práce. Boli vyvinuté zariadenia, ktoré umožňujú zvislý i rotačný pohyb telesa pre kontroly a opravy reaktorovej tlakovej nádoby bez použitia žeriavu. Podl'a čs. AO č. 211853 sa nachádzajú mechanizmy otáčania a posuvu na plošině, uloženej na prirube reaktora.For periodic inspections and possible repairs, the reactor pressure vessel is used to move the body for crane inspection and repair. As a result of the inaccurate operation of the crane mechanisms, impacts occur, the body is deflected from a vertical position, the body is difficult to adjust due to the error coordinates. Crane can not be used for other. work. Devices have been developed that allow vertical and rotational movement of the body for inspection and repair of the reactor pressure vessel without the use of a crane. Podl'a čs. AO č. 211853, there are rotation and displacement mechanisms on a platform mounted on the reactor flange.

Kruhová plošina sa otáča za pomoci pohybového mechanizmu. Na kruhovej plošině sú synchronizované převodovky s elektro,motormi, zabezpečujúce posun vo vertikálnom smere.The annular platform is rotated by the movement mechanism. On the circular platform are synchronized gearboxes with electric motors, ensuring a shift in the vertical direction.

Nevýhody uvedených riešení sú odstránené zariadením pre pohyb kontrolného kontajnera v tlakovej nádobě reaktora pódia vynálezu, ktorého, podstatou je, že pozo,stává z pohybovej skrutky a matice s ozubením, ktorá je otočné uložená na dvoch axiálnych ložiskách, medzi nimi je segment, ktorého nos zapadá do drážky v pohybovej skrutke a tento segment možno elektromagnetickou spojkou zafixovat vzhladom na základová došku. Tým sa dosiahne redukcia zdvíhacieho a otočného mechanizmu do jedného celku.Disadvantages of said solutions are eliminated by a device for moving a control container in a reactor pressure vessel according to the invention, which essentially consists of a movement screw and a gear nut which is rotatably mounted on two axial bearings, between which is a segment whose nose it fits into a groove in the movement screw and this segment can be fixed with an electromagnetic coupling with respect to the foundation thatch. This achieves a reduction of the lifting and rotating mechanism in one unit.

Výhodou předloženého riešenia je, že redukciou zdvíhacieho a otočného mechanizmu do jedného celku sa značné zmenší počet pohybujúcich sa častí, odstráni sa zložitá výroba velkorozměrných ozubených prevodov a ložísk, celé zariadenie možno vyrobit z bežne dostupných dielov.The advantage of the present solution is that by reducing the lifting and rotating mechanism into one unit, the number of moving parts is considerably reduced, the complicated production of large-size gears and bearings is eliminated, the whole device can be made from commercially available parts.

Opornú konštrukciu pre zariadenie možno volit optimálně, táto nemá konštrukciou zariadenia vepřed určený tvar. Nie je nutná synchronizácia pohonov. Pohon celého zariadenia je redukovaný na jeden hriadel', požadovaný účlnok sa dá dosiahnuť jedným motorom s reguláciou otáčok, aleho dvomi motormi pre zdvih a pre otáčanie. Umožněná je dialková regulácia pohonu elektrickými veličinami.The support structure for the device can be chosen optimally, which does not have a predetermined shape by the device structure. No synchronization of the drives is required. The drive of the whole system is reduced to one shaft, the desired effect can be achieved by one speed-controlled motor, but by two motors for stroke and for rotation. Remote control of the drive by electrical quantities is possible.

Na připojených výkresoch na obr. 1 je znázorněná v řeze celková zostava zariadenia, na obr. 2 je znázorněný rez A—A pohybovou skrutkou, na obr. 3 je pohl'ad zhora na segment s nosom, na obr. 4 je pohled zdola na elektromagnetická spojku.In the accompanying drawings of FIG. 1 is a cross-sectional view of the overall assembly of the apparatus; FIG. 2 shows a cross-section A-A of the movement screw, FIG. 3 is a top view of the nose segment; FIG. 4 is a bottom view of the electromagnetic clutch.

Zariadenie pozostáva z pohybovej skrutky 1 s maticou 2 s ozubením tvoriacim so šnekom 3 ozubené šnekové súkolie. Matica 2 s ozubením je uložená v hornom ložisku 4 a hornom axiálnom ložisku 8. V ložisku 5, hornom axiálnom ložisku 8 a dolnom axiálnom ložisku 9 je uložený segment 8, ktorého nos zapadá do drážky v pohybovej skrutke 1, a ktorý je súčasťou elektromagnetickej spojky 7. Táto sa v axiálnom smere může pohybovat v šesťhrannom vybraní základovej došky 10. Súčasti zariadenia sú vložené do skrlne převodovky 11.The device consists of a movement screw 1 with a nut 2 with toothing forming with the worm 3 a toothed worm gear. The toothed nut 2 is mounted in the upper bearing 4 and the upper thrust bearing 8. In the bearing 5, the upper thrust bearing 8 and the lower thrust bearing 9 there is a segment 8 whose nose fits into a groove in the movement screw 1 and which is part of the electromagnetic coupling 7. This can be moved in the axial direction in the hexagonal recess of the base thatch 10. The parts of the device are inserted into the gear housing 11.

Teleso pre kontroly a opravy reaktorovej tlakovej nádoby je zavesené na pohybovej skrutke 1 a vyvodzuje silu Q. Pohon zariadenia sa uskutočňuje cez šnekové súkolie, tvořené šnekom 3 a maticou 2 s ozubením. Otáčaním matice 2 s ozubením vykonává rotačný pohyb aj břemeno Q, zavesené na pohybovej škrutke 1, pretože trenie v závitoch pohybovej skrutke 1 a matice 2 s ozubením je vačšie ako trenie v hornom ložisku 4, v ložisku 5 a v dolnom axiálnom ložisku 9.The body for inspection and repair of the reactor pressure vessel is suspended on the movement screw 1 and exerts a force Q. The drive of the device is effected via a worm gear consisting of a worm 3 and a toothed nut 2. By rotating the toothed nut 2, the load suspended on the moving screw 1 also rotates, since the friction in the threads of the moving screw 1 and the toothed nut 2 is greater than the friction in the upper bearing 4, in the bearing 5 and in the lower thrust bearing 9.

Horné axiálně ložisko, 8 tvoří spolu s maticou 2 s ozubením, segmentom 8 pohybovou skrutkou 1 a bremenom Q, zavěšeným na pohybovej skrutke 1 jeden otáčajúci sa celok. Pri zapnutí elektromagnetickej spojky 7 sa zamedzí rotačný pohyb pohybovej skrutky 1 vzhladom na základovú došku 10 a matice 2 s ozubením sa otáča na hoirnom axiálnom ložisku 8. Pohybová skrutku 1 sa spolu s bremenom Q dvíha, alebo kleská. Nos segmentu 6 sa přitom šmýka v drážke pohybovej skrutky 1. Tvar elektromagnetickej spojky 7 zabraňuje jej pootočením vzhladom na základovú došku 10 a zároveň umožňuje axiálny pohyb elektromagnetickej spojky 7 v, príslušnom vybraní v základovej doske 10. Pri vypnutí budiaceho prúdu je elektromagnetická spojka 7 vysunutá zo záběru vlastnou hmotnosťou. Ložisko 5 vedie radiálně segment 6.The upper axial bearing 8, together with the toothed nut 2, the segment 8 forms a movement bolt 1 and a load Q suspended from the movement bolt 1 is a rotating unit. When the electromagnetic clutch 7 is engaged, the rotational movement of the movement bolt 1 relative to the base plate 10 is prevented and the toothed nut 2 rotates on the upper thrust bearing 8. The movement bolt 1 is raised or lowered together with the load Q. The nose of the segment 6 slides in the groove of the movement screw 1. The shape of the electromagnetic clutch 7 prevents it from rotating with respect to the base thatch 10 and at the same time allows axial movement of the electromagnetic clutch 7 in the corresponding recess in the base plate. from its own weight. The bearing 5 extends radially of the segment 6.

Horné ložisko 4 okrem radiálneho vedenia matice 2 s ozubením zachytává aixiálnu silu F, vznikajúcu pri zavesení zariadenia s telesom pre kontroly a opravy reaktorovej tlakovej nádoby na žeriav.In addition to the radial guidance of the toothed nut 2, the upper bearing 4 receives the aixial force F arising from the suspension of the device with the body for inspecting and repairing the reactor pressure vessel on the crane.

Vynález možno, použit vo všeobecnom stirojárstve tam, kde je pdtrebné jedným zariadením dosiahnuť posuvný rotačný pohyb.The invention can be used in general engineering where it is necessary to achieve a rotational movement with one device.

PREDMETSUBJECT

Claims (2)

Zariadenie pre pohyb telesa pre kontroly a opravy reaktorovéj tlakovéj nádoby, pozostávajúce z pohybovej skrutky a matice s ozubením, vyznačujúce sa tým, že matica (2) s ozubením je otočné uložená na hornom axiálnom ložisku (8) a dolhom axiálvynAlezu nom ložisku (9) a medzi týmito ložiskami (8, 9) je segment (6), ktoirého nos zapadá do drážky v pohybo-vej skrutke (1), pričo-m segment (6) je súčasťou elektromagnetickej spojky (7).A device for moving a reactor pressure vessel inspection and repair assembly comprising a movement bolt and a toothed nut, characterized in that the toothed nut (2) is rotatably mounted on an upper thrust bearing (8) and a lower thrust bearing (9). and between these bearings (8, 9) there is a segment (6) with which the nose fits into a groove in the moving screw (1), the segment (6) being part of the electromagnetic clutch (7). 2 listy výkresov2 sheets of drawings
CS844585A 1984-06-18 1984-06-18 Device for body's motion for checking and repairing of reactor's pressure vessel CS243933B1 (en)

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CS844585A CS243933B1 (en) 1984-06-18 1984-06-18 Device for body's motion for checking and repairing of reactor's pressure vessel

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CS844585A CS243933B1 (en) 1984-06-18 1984-06-18 Device for body's motion for checking and repairing of reactor's pressure vessel

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CS243933B1 true CS243933B1 (en) 1986-07-17

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