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1. 发明专利

JPH0254171A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH0254171A
公开(公告)日：1990-02-23
申请号：JP20471688
申请日：1988-08-19
申请人： HITACHI LTD , HITACHI ENG CO LTD , HITACHI NUCLEAR ENG
发明人： KIMURA YUTAKA , AKASU AKIRA , ASANO KUNITAKA , TAKAKU KAZUO , KIKUCHI TOSHIICHI
IPC分类号： G01N29/26
摘要： PURPOSE:To improve the rate of flaw detection of a lattice board by placing two probes so that they make an isosceles triangle together with a probe rotating mechanism. CONSTITUTION:An upper lattice board of an atomic reactor consists of thin plates 20 with cuts being provided, and after inserting a flaw detector into it and fixing it with device fixing mechanisms 1, 2, flaw detection is performed by scanning probes 3, 4 vertically and laterally. The probes 3, 4 are placed so that they make an isosceles triangle together with a rotation center of a probe rotating mechanism 5 and offset so that they protrude from the end of a flaw detecting arm 6. The probes 3, 4 are placed so that their direction is made variable owing to the rotating mechanism 5 and one of the probes protrudes from the end of an arm 6 when the rotating mechanism 5 moves on the arm 6 to be located at the end of the arm 6. This enables approaching limitation to be improved without being adversely affected by a main unit even if an incident angle of the probe is varied.

2. 发明专利

JPH01195360A FURNACE INSIDE CHECKING DEVICE 失效
公开(公告)号：JPH01195360A
公开(公告)日：1989-08-07
申请号：JP1708088
申请日：1988-01-29
申请人： HITACHI LTD , HITACHI ENG CO LTD , HITACHI NUCLEAR ENG
发明人： KIMURA YUTAKA , KOBAYASHI HIROAKI , AKASU AKIRA , ASANO KUNITAKA , TAKAKU KAZUO , KIKUCHI TOSHIICHI
IPC分类号： G01N29/04 , G01N27/82 , G01N29/26 , G21C17/00 , G21C17/003
摘要： PURPOSE:To continuously check a grid plate part and a furnace core supporting part to improve the check efficiency by providing plural fixing rolls and one positioning roll and clipping a structure with the positioning roll to position and fix it. CONSTITUTION:A main body part is provided with three fixing rolls 2 and a positioning roll 3 and a sensor driving part 6 which moves a sensor 5 from the main body part by a guide is supported. Rolls 2 are pressed to the inside surface of a circular hole to fix a device, and the roll 3 set in the direction opposite to that of a part 14 to be checked is pressed from an adjacent circular hole to clip the structure, and the device is positioned to the part 14 to be checked by the inter-roll length minimizing action. The device is fixed and positioned to an upper grid plate part in the same manner. The roll 3 is stood up not to hinder the grid plate when the grid plate passes. Thus, the upper grid plate part and the core supporting part of the structure in a furnace are continuously checked to improve the check efficiency.

3. 发明专利

JP2007017358A Inspection device and inspection method for diffuser of jet pump 审中-公开
标题翻译：喷气发动机检测装置及检查方法
公开(公告)号：JP2007017358A
公开(公告)日：2007-01-25
申请号：JP2005201031
申请日：2005-07-11
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： NAKAMURA MOTOYUKI , AKASU AKIRA , IKEDA KAZUTOSHI , SASAKI TSUKASA
IPC分类号： G21C17/003 , G21C15/25
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an inspection device and an inspection method for a diffuser of a jet pump, capable of moving and installing accurately a sensor of an inspection device body, wherein inspection position accuracy is excellent and an inspection work is simple.
SOLUTION: In this inspection device for the diffuser, the inspection device body 2 is inserted into the diffuser from which an inlet mixer is dismounted, and inspection is performed from the inner surface by the sensor of the inspection device body 2, and the inspection device body 2 is arranged movably in a protection cylinder 1 inserted inside from an upper opening of the diffuser. A positioning member 5 on which a recessed groove 6 is formed used as a position regulation means is provided on the upper end of the protection cylinder 1, and the recessed groove 6 is engaged with a projection part on the upper end of the diffuser. The inspection device body 2 is constituted of an axial-direction moving means 10 for adjusting a height-direction position of the sensor 43, a circumferential-direction driving means 20 for adjusting circumferential-direction movement of the sensor, a clamp 30 of the position regulation means for pressing the inspection device body onto the diffuser inner surface, and a sensor means 40 for inspecting an inspection object portion.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于喷射泵的扩散器的检查装置和检查方法，其能够精确地移动和安装检查装置主体的传感器，其中检查位置精度优异并且检查工作是简单。解决方案：在该扩散器用检查装置中，将检查装置主体2插入到其中拆下入口混合器的扩散器中，并且通过检查装置主体2的传感器从内表面进行检查，检查装置主体2可移动地布置在从扩散器的上部开口插入的保护筒1中。在保护筒1的上端设置有用于形成凹槽6的定位构件5作为位置调节装置，并且凹槽6与扩散器的上端的突出部接合。检查装置主体2由用于调节传感器43的高度方向位置的轴向移动装置10，用于调节传感器的周向运动的周向驱动装置20，位置的夹具30 用于将检查装置主体按压到扩散器内表面上的调节装置和用于检查检查对象部分的传感器装置40。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JPH06308096A ULTRASONIC FLAW DETECTION METHOD AND DEVICE FOR L-SHAPED BOLT 失效
公开(公告)号：JPH06308096A
公开(公告)日：1994-11-04
申请号：JP9300393
申请日：1993-04-20
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , KIMURA YUTAKA , AKASU AKIRA , KANDA KIMIO
IPC分类号： G01N29/04
摘要： PURPOSE:To provide an L-shaped bolt ultrasonic flaw detection technique for performing the ultrasonic flaw detection test of the soundness of an L-shaped bolt positively and efficiently. CONSTITUTION:An ultrasonic probe 28 is set at an inclination angle so that an ultrasonic beam 29 can be thrown to the corner portion of an AHC (Access Hole Cover) mounting bolt 25 which is an L-shaped bolt and then an ultrasonic beam 29 is applied while rotating the ultrasonic probe 28 around a center axis 0-0 of the AHC mounting bolt 25.

5. 发明专利

JPS63163269A AUTOMATIC ULTRASONIC FLAW DETECTING DEVICE 失效
公开(公告)号：JPS63163269A
公开(公告)日：1988-07-06
申请号：JP30849486
申请日：1986-12-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMAZAKI SABURO , KAKINUMA YUKIO , NAITO SHOICHI , AKASU AKIRA , ARAI KATSUMI
IPC分类号： G01N29/26 , G01N29/04
摘要： PURPOSE:To accurately perform flaw detection by scanning a probe while profiling a surface to be inspected which consists of a curved surface part and plane parts, and calculating the position of the probe from the angle of rotation of the probe and the shape parameter of the surface to be inspected at this time. CONSTITUTION:The surface to be inspected which consists of the plane parts 6 and 8 and curved surface part 7 is scanned by the probe 1 in an X and a Y direction. This probe 1 is moved along a guide 9 and an arm 11 is rotated around a shaft 12 by an angle theta of rotation to make a scan in the X and Y directions while profiling the shape of the surface to be inspected. At this time, parameters which determine the inclinations and range of the plane parts 6 and 8 of the surface to be inspected and the curvature and range of the curved surface part 7 are set and the position of the probe 1 is calculated from the parameter values and angle theta of rotation. Consequently, an ultrasonic flaw detection position is accurately found. The angle of rotation of the arm is therefore detected to obtain probe position information, so the flaw detection as to the surface to be inspected which consists of the plane part and curved surface part is performed with high efficiency.

6. 发明专利

JPS5896249A GUIDING AND POSITIONING DEVICE OF INSPECTING MECHANISM 失效
公开(公告)号：JPS5896249A
公开(公告)日：1983-06-08
申请号：JP19455281
申请日：1981-12-04
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAJIYAMA SHIGERU , TAKAKU KAZUO , NARUSE AKISUKE , AKASU AKIRA
IPC分类号： G01N29/22 , B23C3/12 , B24B9/00 , G01N27/82 , G01N29/04 , G01N29/26 , G21C17/003 , G21C17/007 , G21C17/017
摘要： PURPOSE:To obtain a guiding and positioning device being applicable to many kinds of pipings and having a simple structure, by providing a circular rail devised to guide an inspecting mechanism, etc. along the outer peripheral surface of a cylindrical structural material to be subjected to an inspection or machining, and to fix the material at a prescribed position by a movable pawl and fixed pawls. CONSTITUTION:A contactor 22 inspecting the inside corner 20, etc. of a nozzle 19 is fitted to a circular rail 24 and guided in the axial and circumferential directions of the outer peripheral surface of the nozzle 19 by a remote control board. One movable pawl and two fixed pawls 28 and 29 are fitted at three positions located symmetrically on the inner peripheral side of the circular rail 24, and the movable pawl 27 is connected with a ratchet to a handle 30, while the fixeds pawl 28 and 29 are rotated eccentrically around axes 31 which can be rotated by the operation of buttons 34, respectively. Accordingly, the circular rail 24 is fitted on the outer peripheral surface of the nozzle 19 and locked by the operation of a handle 26, the fixed pawls 28 and 29 are adjused to be set at appropriate positions of rotation so that the distance between the axes 31 and the outer peripheral surface of the nozzle 19 is made to correspond to the outside diameter of a nozzle 21, and the movable pawl 27 is extended in the direction of the diameter of the rail, whereby the circular rail 24 is clamped on the nozzle 19.

7. 发明专利

JPS62287149A ULTRASONIC FLAW DETECTING DEVICE 失效
公开(公告)号：JPS62287149A
公开(公告)日：1987-12-14
申请号：JP13010886
申请日：1986-06-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KIMURA YUTAKA , KOBAYASHI HIROAKI , AKASU AKIRA , ASANO KUNITAKA , TAKAKU KAZUO
IPC分类号： G01N29/04
摘要： PURPOSE:To follow up a curved-tube welded zone and to press a probe under constant pressure by providing a probe holding part with a support part which receives arm pressing force and a dedicated pressing mechanism which presses the probe against a sample. CONSTITUTION:An ultrasonic flaw detecting device is installed on a track 4 fitted on the straight-tube side of the welded zone 13 between a straight tube 1 and an elbow 2. The ultrasonic probe 5 is driven in a piping direction by the arm part consisting of a guide bar 6, a ball screw 7, and the probe holding part. This main arm part is supported freely rotatably on a device main body 9 and allowed by an arm pressing air cylinder 10 to follow up the shape of the sample. The pressing force of an arm is received by a support roller 11 which has a rotatable roller. Consequently, the probe is pressed against the sample under the constant pressure by a probe pressing air cylinder 12 irrelevant to the arm pressing force on condition that the probe is supported by a probe gimbals.

8. 发明专利

JPS61148367A POSITION DETECTOR FOR POLAR COORDINATE TYPE ULTRASONIC PROBE 失效
公开(公告)号：JPS61148367A
公开(公告)日：1986-07-07
申请号：JP27091284
申请日：1984-12-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AKASU AKIRA , KOBAYASHI HIROAKI , KIMURA YUTAKA
IPC分类号： G01N29/26 , G01N29/30
摘要： PURPOSE:To enable the application for a sample of varied shapes, by employing an original wire winding mechanism combining a wire and a plate spring. CONSTITUTION:A body 6 is mounted on a sample 1 with magnet 5. The body 6 is equipped with a linear way detector section and a rotating direction detector section, has a wire 8 and a plate spring 9 for winding the wire at the linear way detector section and the rotation thereof is detected with a detector 10. In the detection of the rotating direction, the body 6 is rotated by the tension of the wire 8 and the relative rotation of the magnet 5 and the body 6 is checked with a detector 7.

9. 发明专利

JPS60128360A ULTRASONIC FLAW DETECTOR FOR CRD HOUSING 失效
公开(公告)号：JPS60128360A
公开(公告)日：1985-07-09
申请号：JP23630783
申请日：1983-12-16
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AKASU AKIRA , NAKADA AKIRA , KURIHARA KENICHI , KUROSAWA KOUICHI , HIGUCHI SHINICHI
IPC分类号： G01N29/04 , G01N29/28
摘要： PURPOSE:To attain the ultrasonic flaw detection of vertical piping like a CRD housing from the internal surface by a water dipping method by holding supplied water only near a weld zone and rotating a probe upward and downward from a rack part. CONSTITUTION:A flaw detecting part 5 and a water holding part 6 are inserted and operated up to the upper end of the CRD housing 1 through the operation of the upward/downward handle 14 of the rack part 13, and then flaw detecting part is lowered to within the flaw detection required range of a weld line. Then, air is supplied from a body compressor and the elastic ring 9 of the water holding part is spread to fix a seal and the water holding part 6. Water is supplied from a water intake 10 to detect a necessary water level through an air vent 11, and then the water feeding is stopped. Handles 14 and 15 are operated to move and rotate the flaw detecting part 5 up and down freely and the ultrasonic flaw detection is carried out. The flaw detecting part is lowered to the fixation position of the water holding part and the supply side of the water intake 10 is opened to discharge the water around the flaw detecting part.

10. 发明专利

JPS5931448A Spherical static pressure type ultrasonic probe 失效
标题翻译：球形静压式超声波探头
公开(公告)号：JPS5931448A
公开(公告)日：1984-02-20
申请号：JP14115682
申请日：1982-08-16
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： AKASU AKIRA , NAKADA AKIRA , KANDA KIMIO , NAKANO YUTAKA
IPC分类号： G01N29/26 , G01N29/28
CPC分类号： G01N29/28
摘要： PURPOSE:To stabilize the contacting of an ultrasonic probe and to improve its precision by using a spherical bearing which uses fluid as a contacting medium for an ultrasonic probe rotating and pressing mechanism for allowing the ultrasonic probe to imitate an object surface. CONSTITUTION:The spherical bearing 8 which uses the fluid as the contacting medium is used for the ultrasonic probe rotating and pressing mechanism which allows the ultrasonic probe 7 to imitate on the surface of an object 6. In this case, the fluid as the contacting medium is supplied from a contacting medium intake 10 to the object surface through a feed water opening 12, the spherical bearing, and supply openings 13 and 13'. This constitution stabilizes the contacting of the ultrasonic probe and provides precise ultrasonic flaw detection.
摘要翻译：目的：为了稳定超声波探头的接触并通过使用使用流体作为用于超声波探头旋转和按压机构的接触介质的球形轴承来提高其精度，以允许超声波探头模仿物体表面。构成：使用流体作为接触介质的球面轴承8用于超声波探头旋转和按压机构，其允许超声波探头7模仿物体6的表面。在这种情况下，作为接触介质的流体通过供水口12，球面轴承和供应开口13和13'从接触介质入口10供应到物体表面。该结构使超声波探头的接触稳定，并提供精确的超声波探伤。

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