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11. 发明专利

JPS6015556A TRACK FOR CONTAINER MONITORING OR INSPECTING APPARATUS 失效
公开(公告)号：JPS6015556A
公开(公告)日：1985-01-26
申请号：JP12338783
申请日：1983-07-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , KIMURA YUTAKA , NARUSE AKISUKE , SASAKI TSUKASA , TAKAKU KAZUO
IPC分类号： G21C17/003 , B23Q9/00 , G01N29/04 , G01N29/265 , G21C17/00
摘要： PURPOSE:To make it possible to absorb a moving amount due to thermal expansion by the rotation of a connection rod by escaping thermal expansion to the radius direction of a track in a circumferential direction into a continuous ring form while supporting the same by three or more of connection rods. CONSTITUTION:A track 5 and a container 7 are connected by a plurality of connection rods 18 each having pins 19, 20 provided to both ends thereof. Both end pins 19, 20 are at right angles to the surface containing the track 5 and each connection rod 18 is attached in a freely rotatable manner within the plane passing the center of the track 5. When the track 5 reaches a position shown by the numeral 5' by thermal expansion, each connection rod 18 is rotated around the pin 20 to reach a position shown by the numeral 18' and absorbs the thermal expansion of the track 5. If the track 5 has sufficient rigidity in a constant atmospheric temp. and supported by three or more of the connection rods 18, the track 5 is held without being moved by the restriction of the connection rods each forming a direction different from external force even if any external force is applied. In addition, the center of the track is kept same and high reproducibility, safety, reliability and soundness are obtained.

12. 发明专利

JPS59133456A Supporting structure of one-body type track in nuclear reactor pressure vessel 失效
标题翻译：核反应堆压力容器中单体轨道的支撑结构
公开(公告)号：JPS59133456A
公开(公告)日：1984-07-31
申请号：JP736483
申请日：1983-01-21
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： ASANO KUNITAKA , NARUSE AKISUKE , TAKAKU KAZUO , SASAKI TSUKASA
IPC分类号： G01N27/82 , G01N29/04 , G01N29/265 , G21C17/003
CPC分类号： G01N29/265 , G01N2291/2695
摘要： PURPOSE:To improve the position precision of a one-body type track by hanging and holding a longitudinal track and a support with a supporting member supporting the empty weight of the one-body type track provided to a vessel side. CONSTITUTION:A hook 14, a bridge 12 and a bracket 11 are engaged at the vicinity of the top end side of the longitudinal track 3, and the bracket 11 is welded to a nuclear reactor pressure vessel 2 and supported thereby. The one end side of a bracket 10 is engaged with upper end side of a support 4, and the other end side is welded to the vessel 2 and supported thereby. A vibration stopper 8 and a bracket 13 are engaged with a support 17, and the one end side of the bracket 13 is welded to the vessel 2 and supported thereby. The one-body type track 1 composed of circular tracks 15, 16, a longitudinal track 3 and the supports 4, 17, 17', etc. is hung by the vessel 2 to support the empty weight. Since the brackets 10, 11, 13 are formed to fixed lengths respectively, the track 1 is positioned acculately with respect to the vessel and reproduced accurately.
摘要翻译：目的：通过悬挂和保持纵向轨道和支撑件来提高单体轨道的位置精度，支撑构件支撑提供给船侧的单体型轨道的空重。构成：在纵向轨道3的顶端侧的附近，钩14，桥12和支架11接合，支架11被焊接到核反应堆压力容器2并由其支撑。支架10的一端侧与支撑件4的上端侧接合，另一端侧焊接在容器2上并由其支撑。振动止动器8和支架13与支撑件17接合，并且托架13的一端侧焊接到容器2并由其支撑。由圆形轨道15,16，纵向轨道3和支撑件4,17,17'等构成的单体轨道1被船2悬挂以支撑空重。由于支架10,11,13分别形成为固定长度，所以轨道1相对于容器被准确地定位并被精确地再现。

13. 发明专利

JPH0540189A INSPECTION DEVICE FOR INSIDE OF REACTOR 失效
公开(公告)号：JPH0540189A
公开(公告)日：1993-02-19
申请号：JP19659591
申请日：1991-08-06
申请人： CHUGOKU ELECTRIC POWER , HITACHI LTD , HITACHI ENG CO LTD
发明人： SASAKI TSUKASA , TAKAKU KAZUO , UOZUMI HIROTO , ASANO KUNITAKA , KANDA KIMIO , MASAOKA ISAHIKO , MATSUSHIMA KAZUO , IWAMOTO KAZUTO
IPC分类号： G01N29/04 , G01N29/26 , G21C17/003
摘要： PURPOSE:To observe easily the intactness of welding part of a reactor pressure vessel from inside. CONSTITUTION:On the upper part of a reactor pressure vessel 1, an azimuthal dolly 11 is placed and on the azimuthal dolly 11 a radial dolly 13 is placed. On the radial dolly 13, a lower mast 14 and an upper mast 16 to support a part of the mast 15 is fixed as to be free of extension up and down direction. In this case, the part of the mast 15 is fixed with a shift to the reactor pressure vessel body 1 side against the mast 16 and the lower mast 14 is fixed as to shift to the reactor pressure vessel body 1 side against the mast 15. And at the lower end of the lower mast 14, an ultrasonic sensor 18 is fixed below the lower mast 14.

14. 发明专利

JPH0493764A ULTRASONIC APPARATUS FOR FLAW DETECTION 失效
公开(公告)号：JPH0493764A
公开(公告)日：1992-03-26
申请号：JP21037890
申请日：1990-08-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , KIMURA YUTAKA , SASAKI TSUKASA
IPC分类号： G01N29/04 , G01N29/26
摘要： PURPOSE:To make a probe follow a surface to be inspected, in a state of being pressed stably thereon, and to reduce an external force applied on an arm by providing a magnet roller in the vicinity of the probe and by making it receive a counterforce of pressing of the probe and the gravity of a probe unit and others. CONSTITUTION:A running body 3 fitted so that it can run along a circular track 1 fitted on the straight pipe side of a piping 2 has an arm 6 projecting in the longitudinal direction of the piping 2. This arm 6 is held slidably by an arm holder 11 and can be positioned arbitrarily by the rotation of a pinion 12 geared with a rack. A probe unit 7 is fitted to the fore end of the arm 6 and a magnet roller 13 is fitted rotatably to this unit by a pin 14. The roller 13 is fitted by attraction on the piping 2 and supports the counterforce of a direct drive mechanism 8 pressing a probe 10 on the surface of the piping 2, the gravity of the unit 7, etc. According to this constitution, sharp reduction of a force pressing the arm 6 and the holder 11 is enabled.

15. 发明专利

JPH0283446A ULTRASONIC FLAW DETECTION APPARATUS FOR NOZZLE 失效
公开(公告)号：JPH0283446A
公开(公告)日：1990-03-23
申请号：JP23504088
申请日：1988-09-21
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , KIMURA YUTAKA , AKASU AKIRA , SASAKI TSUKASA
IPC分类号： G01N29/04 , G01N29/26
摘要： PURPOSE:To enhance the following accuracy to a nozzle saddle-shaped part, to miniaturize a flaw detection unit and to enhance flaw detection accuracy by providing follower sensors at two places on both sides of a probe and setting the average of the outputs of said sensors to distance detection quantity and performing control so as to set said detection quantity to a definite value to achieve following operation approximate to an ideal position. CONSTITUTION:A probe holder 10 supporting a probe 4 in a freely shakable manner is fixed to the tip of a cylinder 11 performing extension and contraction operation in a Z-direction and the cylinder 11 is further mounted to a flaw detection unit 8 so as to perform revolving operation (alpha-direction). Follower sensors 13, 14 are respectively mounted to both side surfaces of the flaw detection unit 8 and, when a knob 15 is loosened, the sensors 13, 14 slide in a before- and-behind direction (Y-direction) and can be aligned by a scale plate 16. The follower sensors 13, 14 have detection parts 17 and the moving quantities thereof are converted to electric signals. The electric signals of the follower sensors 13, 14 are synthesized and always controlled so as to approximate set values and, therefore, the flaw detection unit 8 can perform following operation to the saddle-shaped part of a nozzle with good accuracy.

16. 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.

17. 发明专利

JPS63306964A SCANNING DEVICE WITH SAFETY MECHANISM 失效
公开(公告)号：JPS63306964A
公开(公告)日：1988-12-14
申请号：JP14311687
申请日：1987-06-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KIMURA YUTAKA , KOBAYASHI HIROAKI , AKASU AKIRA , ASANO KUNITAKA , SASAKI TSUKASA
IPC分类号： G01N29/04 , B61B13/02 , G21C17/00 , G21C17/003
摘要： PURPOSE:To improve the safety of a device by constituting such that a current flowing through an electromagnetic clutch in a drive system of an ultrasonic probe scanning device for inspecting a welded part or the like of a drum part of a pressure vessel is monitored and, according to the current value detected, brake is applied. CONSTITUTION:A drive system is constituted to drive a drive pinion 15 by the power of a motor 11 via a gear 12, a speed reducer 13 and an electromagnetic clutch 14. This drive pinion 15 is made to engage with a track rack 17 to run a device. In the vicinity of the drive pinion 15 is attached a brake gear 161. A brake piece 163 at the front end of an air cylinder 162 for the brake is made to be capable of freely engaging with the brake gear 161. Providing a sensor 165 for detecting a current flowing through an electromagnetic clutch 14, it is so controlled that, when a wire breakage or the like of the electromagnetic clutch 14 is detected from an output signal from the sensor 165, a solenoid valve 164 is switched over to make the brake piece 163 mesh with the brake gear 161 by the air cylinder 162 to stop the device.

18. 发明专利

JPS631958A APPARATUS FOR AUTOMATICALLY POSITIONING VISUAL SENSOR 失效
公开(公告)号：JPS631958A
公开(公告)日：1988-01-06
申请号：JP14488286
申请日：1986-06-23
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOBAYASHI HIROAKI , KIMURA YUTAKA , AKASU AKIRA , ASANO KUNITAKA
IPC分类号： G05D3/00 , G01N21/90
摘要： PURPOSE:To eliminate the focal shift of a camera, by detecting the variation quantity by the rotation of a matter by the detector connected to a visual sensor positioning mechanism and making a visual sensation sensor movable in synchronous relation to the variation quantity detected of the matter. CONSTITUTION:A visual sensor 2 is connected to a positioning mechanism 3 and can move in the forward-and-backward direction X2 with respect to the surface to be inspected of matter 1 by a drive source 4 through a control unit 12. A visual sensor positioning mechanism 3 is connected to a detector positioning mechanism 5 and a detector 6 of which the leading end can go in and out freely is fixed to said mechanism 5 and can move in an up-and-down direction and in the forward-and-backward direction X1 with respect to the matter 1 by drive sources 7, 8 by the control unit 12. The matter 1 is arranged to a rotary plate 9 to be fixed thereto by a fixing mechanism 11 and can be rotated along with the rotary plate 9 by a rotary mechanism 10. The position of the matter 1 is detected by moving the detector 6 to a reference point where the detector 6 is pushed in the matter 1 by definite quantity by the positioning mechanism 5 through the control unit 12. The variation quantity of the matter 1 is detected on the basis of that of the detector 6 calculated when the matter 1 is rotated at the reference point.

19. 发明专利

JPS6156965A Ultrasonic flaw detector having cam type following mechanism 失效
标题翻译：超声波检测器具有以下机构的凸轮型
公开(公告)号：JPS6156965A
公开(公告)日：1986-03-22
申请号：JP17836884
申请日：1984-08-29
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： AKASU AKIRA , KIMURA YUTAKA , ASANO KUNITAKA , NAKADA AKIRA
IPC分类号： G01N29/26 , G01N29/27
CPC分类号： G01N29/27
摘要： PURPOSE:To enable application for not only a straight tube + straight tube but also a straight tube + elbow or the like, by arranging an arm to be a vertically swinging mechanism while the inclination of the arm is controlled with a cam mechanism. CONSTITUTION:An arm 10 free to swing vertically is mounted on a truck 9 running on a rail 8 and provided wth a probe holder adapted to press a probe on an object to be detected with an air cylinder. Then, a cam 16 turns synchronizing the rotation of a pinion 18 driven with a motor 17. The arm 10 swings vertically with the convex and concave of the cam 16 and a roller 15 at the end of the arm 10. The cam 16 can be exchanged with a knob 20 and the arm 10 is allowed to follow the desired shape of a piping joint by preparing a cam to match the desired shape of an object to be detected. Thus, the arm can follow the object being detected without contact free from the effect of ruggedness of the surface of the object being detected and hence and any resulting bending moment thereof.
摘要翻译：目的：通过将臂设置为垂直摆动机构，同时通过凸轮机构控制臂的倾斜，能够适用于直管+直管，直管+弯管等。构成：垂直摆动的臂10安装在运行在轨道8上的卡车9上，并且设置有适于将探针压在被检测物体上的气瓶的探头保持架。然后，凸轮16使由电动机17驱动的小齿轮18的旋转同步。臂10随着凸轮16的凸起和凹入而垂直摆动，在臂10的端部摆动辊15。凸轮16可以与旋钮20交换，并且允许臂10通过准备凸轮来跟随所需形状的管接头，以匹配待检测物体的期望形状。因此，臂可以跟随待检测物体，而不会受到被检测物体的表面的粗糙度的影响，因此和任何所得到的弯曲力矩。

20. 发明专利

JPS6061687A TRAVELLING TRACK FACILITY AROUND PRESSURE VESSEL FOR NUCLEAR REACTOR AND METHOD OF CONSTRUCTING SAID FACILITY 失效
公开(公告)号：JPS6061687A
公开(公告)日：1985-04-09
申请号：JP16992083
申请日：1983-09-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAKU KAZUO , NARUSE AKISUKE , SASAKI TSUKASA , ASANO KUNITAKA
IPC分类号： G01N27/82 , G01N29/04 , G21C17/00 , G21C17/003

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