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1. 发明专利

JPH04128649A ULTRASONIC DETECTOR 失效
公开(公告)号：JPH04128649A
公开(公告)日：1992-04-30
申请号：JP24761290
申请日：1990-09-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KIMURA YUTAKA , ASANO KUNITAKA , SASAKI TSUKASA
IPC分类号： G01N29/04 , G01N29/26 , G21C17/003
摘要： PURPOSE:To dispense with a long mast for effectively miniaturizing, and to greatly facilitate assembling and fitting work by stably securing the distance between the detector and an object to be examined by means of a scanner part, and by supporting the scanner with chains. CONSTITUTION:In the inside of an inspection device body 1, a scanner to be used for maintaining rigidity in the circumferential direction of a vessel, and drums 11 for winding up hoisting chains 5 in the perpendicular direction to the scanner are provided, so that the scanner 4 can be lifted or lowered by turning the drums. By controlling the rotation of the drums, a prescribed height can be obtained. The scanner 4 is mounted with a ultrasonic probe 12, and this is moved laterally by means of a driving mechanism 14. By turning a propeller, a thrust is obtained, and by means of spacers 13 the distance between the probe and an object to be examined is maintained so as to be constant. In the case of ultrasonic examination, to carry out angle beam testing in which ultrasonic waves are obliquely incident on the object to be examined, the distance between the probe and the object to be examined must be kept constant.

2. 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.

3. 发明专利

JPS5956157A Ultrasonic flaw detector 失效
标题翻译：超声波检测仪
公开(公告)号：JPS5956157A
公开(公告)日：1984-03-31
申请号：JP16644982
申请日：1982-09-27
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： TAKAKU KAZUO , NARUSE AKISUKE , NAKANO YUTAKA , ASANO KUNITAKA
IPC分类号： G01N29/04 , G01N29/265
CPC分类号： G01N29/265 , G01N2291/2695
摘要： PURPOSE:To perform flaw detection by the same ultrasonic flaw detector even when there is some difference in level between a guide rail attachment position and a flaw detection position, by allowing a probe holder held by an arm attached to a driver to slide vertically. CONSTITUTION:The ultrasonic flaw detector consisting of the driver 5 and the probe holder 7 holding the arm 4 and probe 3 performs flow detection along the girth weld line 10 between a pressure container nozzle 8 and a safe end 9. At this time, it is necessary to attach a guide rail 2 to a tube body 1 by the structure at the flaw detection position, so the probe holder 7 has the structure capable of absorbing the difference in level due to the difference in tube diameter between the tube body 1 and nozzle side 8. The probe holder 7 is fitted to the arm holding part 11 through a set screw 12 and a slide hole 13 is formed in the probe holder 7 to make a height adjustment freely.
摘要翻译：目的：即使在导轨安装位置与探伤位置之间存在一定程度的差异的情况下，也可以通过同一个超声波探伤仪进行探伤，通过使连接到驾驶员的手臂保持的探头支架垂直滑动。构成：由驱动器5和保持臂4和探头3的探针支架7组成的超声波探伤仪在压力容器喷嘴8和安全端9之间沿着环形焊接线10进行流量检测。此时，需要通过在探伤位置处的结构将导轨2附接到管体1，因此探针保持器7具有能够吸收由于管体1和喷嘴之间的管直径的差异而导致的水平差异的结构探头保持器7通过固定螺钉12装配到臂保持部11，并且在探针保持器7中形成滑动孔13以自由地进行高度调节。

4. 发明专利

JPS58105058A STEADY-REST MECHANISM OF SURFACE RUNNING INTEGRAL TRACK FOR NUCLEAR REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPS58105058A
公开(公告)日：1983-06-22
申请号：JP20350281
申请日：1981-12-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , NAKADA AKIRA , KIMURA YUTAKA , NAKANO YUTAKA , SHIBUYA SADAO
IPC分类号： G01N29/04 , B23Q9/00 , G01N27/82 , G01N29/26 , G01N29/265 , G21C17/003
摘要： PURPOSE:To absorb thermal expansion of a rail and vibration thereof due to earth quake by restricting motions other than vertical and radial ones in combination with a spring. CONSTITUTION:A 4-joint line ABCD is a main component. The joint A is fixed on a support 21F of a rail 3 while the joint C is fixed on a gamma shield 6 with a bracket 22. Spring hooks 23 and 24 are mounted on the joints B and D respectivly in such a manner as to be free to rotate and a spring 25 is interposed therebetween. As the rail 3 expands thermally, the point A is constrained in the direction X but free in the direction of Y+Z. Whenever the point A is moved to reduce the distance between A and B, it is returned by a reaction force of a spring 25. Extending the distance causes a sleeve 26 to hit against the spring hooks 23 and 24 while reducing it beyond a fixed range causes the spring hooks 23 and 24 to hit against stoppers 27 and 28. In this manner, any such an attempt is restricted.

5. 发明专利

JPS5815155A ULTRASONIC FLAW DETECTOR FOR LOWER MIRROR OF ATOMIC REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPS5815155A
公开(公告)日：1983-01-28
申请号：JP11346381
申请日：1981-07-22
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAKANO YUTAKA , NARUSE AKISUKE , ASANO KUNITAKA
IPC分类号： G01N29/22 , B61B13/06 , G01N29/04 , G01N29/265 , G21C17/003
摘要： PURPOSE:To make a lower mirror track small-sized, and also to make it safe in strength, by constituting so that a flaw detecting part is suspended from the lower mirror track, in order that moment does nor work on the lower mirror track. CONSTITUTION:A lower mirror track 1 is installed to a lower mirror skirt 7 through a support 8 and a prop 9. To both ends of an arm 3 installed to a driving part 2 through a prop 10, a holding wheel 17 is installed, and is in contact with a lower mirror 18. The driving part 2 is in contact with the lower mirror skirt 7 by a wheel 15. A driving pinion 6 of the driving part 2 is engaged with a rack 11 of the lower mirror track 1, and the driving part 2 runs along the lower mirror track 1. To a device suspendeing arm 16A, a main roller 13 and a subroller 14 are installed. Reaction of force for pressing a probe against the lower mirror skirt 7, and moment (a) generated from empty weight of the driving part 2, the arm 3, etc. is received by the lower mirror skirt 7 through the wheel 15.

6. 发明专利

JPS57182162A DRIVING DEVICE FOR ULTRASONIC PROBE FOR UNDER-MIRROR OF VESSEL 失效
公开(公告)号：JPS57182162A
公开(公告)日：1982-11-09
申请号：JP6691781
申请日：1981-05-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , KANDA KIMIO , NARUSE AKISUKE
IPC分类号： G01N29/04 , G01N29/265
摘要： PURPOSE:To cover a long probing distance in a narrow section and provide a driving device that is small, light and essy to carry and to handle by making rotatable the defect probing arm. CONSTITUTION:A probe 9 is mounted by one action on a probe holder 11 that has a pressing mechanism 16. The holder 11 can run automatically back and forth on a running guuide 12 by rotating a lead screw 17 by means of a probe driving section 13. On a frame 14 that supports the guide 12 and the driving section 13 the connecting section 15 of a main body 1 is fixed. The connecting section 15 is fixed on the main body 1 with one touch by means of a pin 8, and it can be fixed the same when the probe arm 7 is reversed by 180 deg.. The probe arm 7 is automatically run in the direction perpendicular to the welding line 6 of the lower end plate of vessel with the probe 9 touching an object 10 to be inspected, and the medium for the touch is supplied between the probe 9 and the object 10 through a water supply pipe 23.

7. 发明专利

JPS63154964A PROBE DRIVER 失效
公开(公告)号：JPS63154964A
公开(公告)日：1988-06-28
申请号：JP30127686
申请日：1986-12-19
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 , G21C17/00 , G21C17/003
摘要： PURPOSE:To enable the title driver to be applied to medium and small pressure containers by making its size small, by providing a freely changeable arm driving mechanism between an arm and a driver body. CONSTITUTION:An ultrasonic probe 1 is mounted on a right-angle driving section 2 through a pressing mechanism for an object 9 to be inspected and driven at the right tangle to a rail being kept in contact with the object 9 being inspected. Moreover, a guide 3 is mounted detachably behind the driving section 2 to drive the whole thereof 2 at the right angle to the rail. The guide 3 is mounted on the rail 4 and supported on a driver body 5 running thereon with a roller 6. The guide 3 is provided with a rack 7 and meshed with a pinion 8 of the body to drive the driving section 2 at the right angle to the rail.

8. 发明专利

JPS62273448A ULTRASONIC PROBE POSITION DETECTOR 失效
公开(公告)号：JPS62273448A
公开(公告)日：1987-11-27
申请号：JP11463486
申请日：1986-05-21
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AKASU AKIRA , KOBAYASHI HIROAKI , KIMURA YUTAKA , ASANO KUNITAKA
IPC分类号： G01N29/26 , G01N29/04
摘要： PURPOSE:To detect the polar coordinate position of an ultrasonic probe and the direction of oscillating thereof with two wire winding mechanisms. CONSTITUTION:A body 6 incorporating a linear direction detecting section and a direction of rotation detecting section is mounted on an object 1 to be inspected using a magnet 5. To detect the linear direction, the linear direction detecting section checks pulls R1 and R2 of two wires 14 and 15 as caused by two wire winding pulleys and a plate spring not illustrated. To detect the direction of rotation, the body 6 is turned to check the relative rotation theta between the magnet 5 and body 6 with a rotation detector. With the detection of the amount of two wire pulls R1 and R2 and the rotation theta, the detection of the direction alpha of the probe 2 oscillates can be done from the polar coordinate position of the probe 2 and a difference between two wire pulls.

9. 发明专利

JPS61253457A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS61253457A
公开(公告)日：1986-11-11
申请号：JP9551585
申请日：1985-05-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KIMURA YUTAKA , KOBAYASHI HIROAKI , AKASU AKIRA , ASANO KUNITAKA , ARAI KATSUMI
IPC分类号： G01N29/26 , G01N29/04
摘要： PURPOSE:To enable continuous detection of flaws both at the curvature part and the tilt part of a blade section along with a small size, by arranging a probe between two belts supported with a support section moving corresponding to the shape of an object to be detected. CONSTITUTION:A blade section 6 varies continuously in three directions - inclined in the Z axis (theta) of upper and lower blades and in the Y axis (alpha) of a blade - from the advance of an equipment in the X axis. To detect flaws of an object to be detected with a probe 2 following it, a mechanism is needed to follow changes in three directions. On the other hand, the probe 2 is pressed against belt rotation support sections 7 and 8 adapted to change in the position according to the state of the object being detected with belts 4 and 5 which moves thereover to perform a scanning with the probe 2. This is applicable for various runners once the adjustment of the positions of rollers 17-20 is made possible according to the curvature. Besides, miniaturization is possible with a relatively easy construction.

10. 发明专利

JPS6162858A Automatic flaw detector 失效
标题翻译：自动检测器
公开(公告)号：JPS6162858A
公开(公告)日：1986-03-31
申请号：JP18616084
申请日：1984-09-04
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： KIMURA YUTAKA , AKASU AKIRA , ASANO KUNITAKA
IPC分类号： G01N29/04 , B23Q9/00 , G01N29/265
CPC分类号： G01N29/265 , B23Q9/0021
摘要： PURPOSE:To achieve a smaller size of a flaw detector, by a method wherein a rotary orbit is provided on a stationary orbit on the circumference of a cylindrical object, a flaw detection body moving unit mounted thereon and a driving source set outside the rotary orbit for the rotary orbit and a probe moving mechanism. CONSTITUTION:A stationary orbit 8 is mounted on the circumference of a cylindrical object 1 to be inspected like a piping. A rotary orbit 9 turns on the stationary orbit. A probe moving screw 10 mounted on a flaw detection body moving unit 11 moves a probe coaxially with respect to the cylindrical object 11. The flaw detection body moving unit 11 rotates circumferentially with respect to the cylindrical object 1 together with the rotary orbit 9 driven by a driving source 12. The distance of the unit 11 moved in the circumferencewise direction of the cylindrical object 1 is indexed with deceleration/indexing mechanism 15 by the rotation of a pinion 14 following the unit 11. The unit 11 moves at a fixed distance in the circumferencewise direction of the cylindrical object I and a probe moving screw 10 is turned to move the probe at a fixed distance axially with respect to the cylindrical object 1.
摘要翻译：目的：为了实现更小尺寸的探伤仪，通过在圆柱形物体的圆周上的静止轨道上设置旋转轨道的方法，安装在其上的探伤体移动单元和设置在旋转轨道外部的驱动源用于旋转轨道和探头移动机构。构成：固定轨道8安装在待检查的圆筒形物体1的圆周上，像管道一样。旋转轨道9打开固定轨道。安装在探伤体移动单元11上的探针移动螺钉10相对于圆筒形物体11同轴地移动探针。探伤体移动单元11与旋转轨道9一起相对于圆柱体1旋转，与旋转轨道9一起驱动驱动源12.沿圆筒形物体1的圆周方向移动的单元11的距离通过随着单元11的小齿轮14的转动而被减速/分度机构15分度。单元11以固定距离移动旋转圆柱形物体I和探头移动螺钉10的圆周方向使探针相对于圆柱形物体1轴向移动固定距离。

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