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21. 发明专利

JPH09211182A DEVICE AND METHOD FOR REMOTE-CONTROL WORK IN REACTOR 失效
公开(公告)号：JPH09211182A
公开(公告)日：1997-08-15
申请号：JP1694596
申请日：1996-02-02
申请人： TOSHIBA CORP
发明人： YUGUCHI YASUHIRO , KIMURA MOTOHIKO , SATO KATSUHIKO , IWASA HIDESHI , HAMAMOTO YOSHIO
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To efficiently carry out by remote control the inspection, repair and preventive maintenance for a shroud and in-vessel structures, such as a jet pump, placed in an annular part between a reactor pressure vessel and the shroud. SOLUTION: A remote-control work device uses as a guide an upper flange face of a shroud 2 placed in a reactor pressure vessel 1 and has a working cart 11 running in the upper part of the shroud 2. The cart 11 is equipped with a position adjusting arm 13, where working tools 14 are installed. Moreover, the cart 11 is equipped with an arm mounting/removing part 17 which classifies and installs a dividing mechanism part of the position adjusting arm 13. A working tool mounting/removing part is provided to separated the working tools 14 from the position adjusting arm 13 and installed the former on the latter. Additionally, a controller is provided to control the working cart 11, the position adjusting arm 13, the arm mounting/removing part 17 and the working tool mounting/removing part. The working cart 11 has a freely rotatable prop 76 fitted into a central grid of an upper grid plate 7.

22. 发明专利

JPH09159788A DEVICE AND METHOD FOR REMOTE CONTROLLED WORK IN NUCLEAR REACTOR 失效
公开(公告)号：JPH09159788A
公开(公告)日：1997-06-20
申请号：JP32143895
申请日：1995-12-11
申请人： TOSHIBA CORP
发明人： YUGUCHI YASUHIRO , OKANO HIDEHARU , KIMURA MOTOHIKO , SATO KATSUHIKO , TAKABAYASHI JUNICHI , HAMAMOTO YOSHIO
IPC分类号： G01N29/26 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To conduct the inspection, repairing and preventive maintenance work on in pile structures placed in a reactor pressure vessel by remote control. SOLUTION: When inspection and repair work are carried out by remote control on in-pile structures such as a jet pump 3 in an annulus 2 made between a reactor pressure vessel 1 and a shroud 4, this device comprises a cart 11 which uses an upper flange 6 of the shroud 4 as a guide directly or indirectly by laying a rail and a rotary shaft 19 to run circumferentially on the shroud 4, an upper-body drive mechanism 13 in a cart-mounted part, a multistage slide mechanism 14 to elevate its tip to the annulus 2, an approaching mechanism 15 to bring a scanning mechanism 24 close to the shroud 4, and a rotary shaft 19 for the approaching mechanism 15. A frame 46 is connected to the tip of the rotary shaft 19 through a wire and is equipped with a working tool 23. Absorbing pads 47 are installed on the frame 46, which is fixed on the shroud 4.

23. 发明专利

JPH0763884A IN-REACTOR REMOTE WORK DEVICE 失效
公开(公告)号：JPH0763884A
公开(公告)日：1995-03-10
申请号：JP21668193
申请日：1993-08-31
申请人： TOSHIBA CORP
发明人： ITO ARATA , YUGUCHI YASUHIRO , HAMAMOTO YOSHIO
IPC分类号： G21C17/003 , G21C19/02
摘要： PURPOSE:To conduct such work as inspection repair and the like of components in reactor with remote operation easily, surely and efficiently. CONSTITUTION:A remote work device in reactor conducts inspection and repair of in-core components placed on reactor wall 1a inner surface or on the location in a reactor l. Provided are a component treatment device 2 which is placed above the reactor 1 and performs transport: in and out each work component, a guiderail 6 hung down in the work position in the reactor with the component treatment device 2, guiderail fixing means 7, 8 to fix and hold the guiderail 6 detachably inside the reactor 1, a work aid arm 9 which holds equipments visually catching inside the reactor 1 or jig mechanically aiding and is provided movablly along with the guiderail 6 and capable of stopping at an arbitrary elevation position at any elevation position in the core, and a work machine 12 which is aided by the work aid arm 9 via a jig and conduct repair fabrication of in-core structure by the remote control after hung down in the reactor.

24. 发明专利

JPH06265684A ALIGNMENT MEASURING DEVICE AND REACTOR PROVIDED WITH THE DEVICE 失效
公开(公告)号：JPH06265684A
公开(公告)日：1994-09-22
申请号：JP5598993
申请日：1993-03-16
申请人： TOSHIBA CORP
发明人： HAMAMOTO YOSHIO , KIMURA MOTOHIKO
IPC分类号： G21C17/003 , G21C17/08
摘要： PURPOSE:To accurately and efficiently perform the alignment measurement of a upper lattice plate, core support plate and CRD housing in a reactor. CONSTITUTION:Provided are a long cylindrical vessel 11 fixed at one of intervals between an upper lattice plate 2 placed in a reactor and a core support plate 3 or the core support plate 3 and the top end of control rod drive mechanism housing, a bob 14 hung down in the vessel 11, a means 17, 18 to measure the position change in this bob 14, and a calculation means 19 to calculate the inclination of the vessel 11 based on the measured results. At least one of alignments of intervals between the upper grid plate 2 and the core support plate 3 and between the core support plate 3 and the control rod drive mechanism housing is measured.

25. 发明专利

JPH05333188A 失效
公开(公告)号：JPH05333188A
公开(公告)日：1993-12-17
申请号：JP13901892
申请日：1992-05-29
申请人： TOSHIBA CORP
发明人： ITO ARATA , HAMAMOTO YOSHIO
IPC分类号： G21C17/003 , G21C19/02
摘要： PURPOSE:To provide the method and device capable of concurrently inspecting the inside of a reactor core shroud. CONSTITUTION:An inspection apparatus, a repairing tool, and their installation jigs or assembly parts formed in size to be inserted into openings 3a, 4a of an upper lattice plate 3 or a core support plate 4 are prepared. Installation jigs 8 or assembly parts are hung into a core shroud 2 with a crane 5 from above a reactor vessel 1. They are assembled in the core shroud 2 to install the installation jigs 8. The inspection apparatus and the repairing tool are installed on the installation jigs 8 to inspect and repair the inside of the core shroud 2. A remote control swimming robot 9 having a thrust means is used for support via pressing, holding, and positioning actions during the process to insert the installation jigs 8, inspection apparatus, repairing tool or their assembly parts into the opening sections 3a, 4a of the upper lattice plate 3 or the core support plate 4 and the process to assemble or install them in the core shroud 2.

26. 发明专利

JPH04310358A PERIPHERAL SURFACE MACHINING DEVICE IN CYLINDRICAL NARROW SPACE 失效
公开(公告)号：JPH04310358A
公开(公告)日：1992-11-02
申请号：JP7535591
申请日：1991-04-08
申请人： TOSHIBA CORP
发明人： HAMAMOTO YOSHIO , AKASAKA MASATOSHI
IPC分类号： B24B19/00
摘要： PURPOSE:To perform the easy and positive machining of the peripheral surface disposed in a narrow cylindrical space, especially the smooth in finish-machining or the like of the penetration bead of welding. CONSTITUTION:There are provided plural ring-shape units 11... formed of circular plate like elements 11a... divided circumferentially with the size insertable into a cylindrical narrow space 6, and jointing means 19, 20, 31 for jointing the respective ring-shape units 11... in such a way as to be integrally movable as well as axially and circumferentially removable within an approximately leveled range with the inner-outer peripheral surface. There are also provided a remote-controllable machining means 15 and the ring-shape unit disposed at one axial end part as the machining unit 11, and an axially moving means 16 and a circumferentially moving means 17 are further provided to perform axial movement and circumferential movement with the ring-shape unit disposed at the other axial end part as a driving unit 12.

27. 发明专利

JPS63212406A AUTOMATIC PROCESSING DEVICE FOR LETTER ENGRAVING 失效
公开(公告)号：JPS63212406A
公开(公告)日：1988-09-05
申请号：JP4356987
申请日：1987-02-26
申请人： TOSHIBA CORP
发明人： SUENAGA TOSHIHIRO , HAMAMOTO YOSHIO , MIYAZAKI SATORU
IPC分类号： B23C1/06 , B23C1/16
摘要： PURPOSE:To reduce the cost of letter engraving process by applying a numerical control (NC) system controlled by a computer having built-in a control program to be used exclusively for the process of engraving letters and ideograms on an object. CONSTITUTION:Letters to be given an engraving process are inputted in a host computer 9 through a key board 10. Coordinates of the starting position of a process and a processing pattern of each letter are also inputted and, furthermore, kind, diameter and length of the tools to be used are determined. By following the above-mentioned steps, the computer 9 determines the processing patterns together with the processing terms of the cutting speed, the number of processing passes and the feed speed. Next, the said processing patterns and the terms are transmitted to an NC device 8, after being prepared in an NC program, and a start command is outputted to the device 8 from the computer 9 Hence, a letter engraving process is put into practice on a work 2, as an NC processing machine 1 operates, to automatically acquire a high quality letter engraved product without depending upon the hand work of a skilled worker.

28. 发明专利

JP2012110945A LASER BEAM MACHINING APPARATUS 审中-公开
公开(公告)号：JP2012110945A
公开(公告)日：2012-06-14
申请号：JP2010263178
申请日：2010-11-26
申请人： TOSHIBA CORP
发明人： UEHARA TAKUYA , HAMAMOTO YOSHIO , SHIIHARA KATSUNORI , MAEHARA TAKESHI , YODA MASAKI
IPC分类号： B23K26/14
摘要： PROBLEM TO BE SOLVED: To provide a laser beam machining apparatus that controls a damage of an apparatus, which is caused by reflected light from a workpiece.SOLUTION: The laser beam machining apparatus includes: a laser source; a laser illumination head that is mounted with a condenser lens for condensing a laser beam and irradiates the workpiece with the laser beam; a laser transmission device for transmitting the laser beam from the laser source to the laser illumination head; an antioxidant gas feeding device for feeding antioxidant gas for preventing the workpiece from being oxidized by laser illumination; and a light shield that is interposed between the laser illumination head and the workpiece, disposed in the laser illumination head so as to encircle a part of the workpiece to which the laser beam is irradiated, can change a form thereof according to a variation in distance between the laser illumination head and the workpiece and formed of either a metal, ceramic or carbon.

29. 发明专利

JP2001349978A PREVENTIVE MAINTENANCE DEVICE FOR STRUCTURE IN REACTOR 失效
公开(公告)号：JP2001349978A
公开(公告)日：2001-12-21
申请号：JP2000171116
申请日：2000-06-07
申请人： TOSHIBA CORP
发明人： ONO YOSHIAKI , KATO HIROMI , HAMAMOTO YOSHIO , IKAKURA HIROAKI , TOGASAWA YUTAKA , KASAI SHIGERU
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To enhance the reliability and durability of a light guide expansible part and prevent oil component in a lubricant from adversely affecting a light guide means. SOLUTION: This device has the light guide means 31, 36 and 39 connected together to guide laser beams of a laser beam oscillator 25, an irradiation head 51 collecting the laser beams from the light guide means 31, 36 and 39 and irradiating with the laser beams the constructed part of an in-reactor structure in a reactor pressure vessel, and a remote operation device 50 guiding the laser beams to the irradiation head 51 and remotely driving eth irradiation head 51 for turning movement and vertical and longitudinal movement. The light guide means 39 is provided with the light guide expansible part which is capable of expansion and contraction and surrounded by bellows.

30. 发明专利

JPH07266230A METHOD AND DEVICE FOR REFORMING STRUCTURAL MATERIAL 失效
公开(公告)号：JPH07266230A
公开(公告)日：1995-10-17
申请号：JP5883494
申请日：1994-03-29
申请人： TOSHIBA CORP
发明人： OBATA MINORU , ITO ARATA , MOTOKI HIDEO , HAMAMOTO YOSHIO , MOTOYOSHI YUUICHI
IPC分类号： G21C19/02 , B24C1/10 , B24C5/02 , C21D7/06
摘要： PURPOSE:To previously prevent the generation of stress corrosion cracking by generating the collision of multiple metal or ceramics shots, which are accelerated by the high pressure air at a specified value or less of the pressure difference between the pressure of a blow-out port and the pressure of the peripheral environment, with each other so as to convert the residual stress of the surface of the structural material from the tension to the compression. CONSTITUTION:A first chamber 3, which is provided with a horizontal part having a first beak part 2 in the tip thereof and a vertical part, is provided opposite to the working surface of the structural material of a structure in a nuclear reactor. A second chamber 5, which surrounds the horizontal part of the first chamber 3 and which has a second slit 4 in the tip thereof, is provided. A shot nozzle 7 having a blow-out port 6 in the tip thereof is provided in the first chamber 3 so as to pass through the vertical part wall. Multiple metal or ceramics shots, which are accelerated by the high pressure air at 2kgf/cm or less of the pressure difference between the pressure of the blow-out port 6 and the pressure of the peripheral environment, are made to collide with each other so as to convert the residual stress of the working surface 1 from the tension to the compression.

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