CN109975414B - Probe driving device for ultrasonic inspection of spherical girth weld - Google Patents
Probe driving device for ultrasonic inspection of spherical girth weld Download PDFInfo
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- CN109975414B CN109975414B CN201711441553.0A CN201711441553A CN109975414B CN 109975414 B CN109975414 B CN 109975414B CN 201711441553 A CN201711441553 A CN 201711441553A CN 109975414 B CN109975414 B CN 109975414B
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- 239000000523 sample Substances 0.000 title claims abstract description 90
- 238000007689 inspection Methods 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims 5
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000009659 non-destructive testing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of nondestructive testing, and particularly discloses a probe driving device for spherical girth weld ultrasonic inspection. The device comprises a guide base, a movable platform and a driving mechanism, wherein the lower part of the guide base is a guide structure formed by combining a straight line section of the base and an arc section of the base; the self-adaptive assembly is arranged on the moving platform, can adaptively move along the lower end outline of the guide base, and is provided with a probe assembly for checking welding seams. The device can drive the ultrasonic probe to move along a track matched with the outline of the detected area, the whole driving device is more stable in state when the ultrasonic probe reciprocates, the ultrasonic probe is more tightly attached to the surface of the detected area, the shaking is smaller, and finally the signal quality of ultrasonic detection is improved and improved.
Description
Technical Field
The invention belongs to the technical field of nondestructive testing, and particularly relates to a probe driving device for spherical girth weld ultrasonic inspection.
Background
Many pressure-bearing containers have a circumferential weld on their shells due to the need for the manufacturing process, in which the shells are manufactured in sections and then joined by welding. Because the container is used in a high-temperature and high-pressure state for a long time, the state detection is required to be carried out on the container regularly, and mainly the quality condition of the welding line is detected. The automatic ultrasonic detection is an effective mode for detecting the welding seam, and detection signals of an ultrasonic probe can be recorded in real time, so that later analysis and recording are facilitated. According to the ultrasonic inspection rules, when the girth weld is inspected, the ultrasonic probe is required to detect materials within a certain range on both sides of the weld in addition to the area where the weld is located, so as to realize comprehensive detection of the quality of the weld, and the areas are collectively called as inspected areas. At this time, the ultrasonic probe needs to be carried by a probe driving device to reciprocate on the detected area, so that the signal of the ultrasonic probe can cover all the detected areas, and the deeper the depth of the welding line is, the wider the detected area is required to be; in the process of the reciprocating motion of the ultrasonic probe, the probe needs to be closely attached to the surface of the detected area in a relatively stable state, and no extra shaking is generated in the moving process as much as possible so as to ensure the quality of ultrasonic signals.
The circumferential weld on the pressure-bearing container is usually formed by splicing two sections of cylindrical structures, but at the top or bottom of some containers, there is a circumferential weld formed by welding between a cylindrical structure and a hemispherical structure, and one side of the circumferential weld is a straight line section and the other side is a circular arc section when viewed from the section in the axial direction. In ultrasonic inspection of such girth welds, continuous reciprocation of the probe over straight and circular segments is required.
The common device is arranged along the axis direction at present, and drives the ultrasonic probe to do linear motion. According to the scheme, the circumferential weld formed by splicing the two sections of cylindrical structures can be effectively detected; however, when the circular welding formed by butt joint of the cylindrical structure and the hemispherical structure is detected, when the device moves from the straight line section to the circular arc section, the distance between the device and the outer wall of the container is larger as the distance of the movement is longer, the probe needs to extend out to be attached to the circular arc surface of the outer wall of the container, and the probe needs to be continuously changed from a horizontal state to a large inclined angle so as to be attached to the outer wall of the spherical surface. Checking in this way, there are the following problems: (1) The telescopic range of the ultrasonic probe is too large, the structural design and the stability of the device are affected, and the probe can generate larger shaking when the probe reciprocates due to unavoidable errors in part processing and assembly gaps objectively existing in the telescopic structure and excessive cantilever elongation; (2) The turning angle change range of the ultrasonic probe is too large, and the situation that the probe is not well attached when the ultrasonic probe reciprocates on the straight line and the circular arc section can occur; finally, the quality of the detection signal of the automatic ultrasonic inspection is poor, and even is incoherent.
Therefore, a probe driving device with a more reasonable structure is designed aiming at the spherical circumferential weld formed by splicing the cylindrical section and the spherical surface, so as to improve the quality of automatic ultrasonic detection.
Disclosure of Invention
The invention aims to provide a probe driving device for ultrasonic inspection of spherical girth welds, which can automatically and ultrasonically detect spherical girth welds at the joint of a cylindrical section and a spherical surface.
The technical scheme of the invention is as follows: the probe driving device for spherical girth weld ultrasonic inspection comprises a guide base, a moving platform, a driving mechanism, a self-adaptive assembly and a probe assembly, wherein the guide base is a guide structure formed by combining a straight line section of the base and an arc section of the base, the moving platform and the driving mechanism are arranged on the guide base, and the moving platform can be driven to linearly reciprocate on the guide base through the driving mechanism; the self-adaptive assembly is arranged on the moving platform, can adaptively move along the lower end outline of the guide base, and is provided with a probe assembly for checking welding seams.
The movable platform comprises a guide rail A, a sliding seat A and a sliding block, wherein the guide rail A is arranged on a guide base, the sliding seat A is matched with the guide rail A, and the sliding block is connected with the sliding seat A to form the movable platform capable of moving along the guide rail A.
The movable platform comprises two guide rails A which are parallel to each other, two sliding seats A are arranged on each guide rail A in a matching mode, and the sliding blocks are connected with the four sliding seats A to form a whole.
The driving mechanism comprises a screw rod, nuts, a supporting seat and a gear box, wherein the supporting seat and the gear box are respectively and fixedly arranged at two ends of the guide base, the screw rod is fixedly supported between the supporting seat and the gear box, the nuts sleeved on the screw rod and matched with the screw rod are fixedly connected with the moving platform, and the driving motor arranged in the guide base drives the gear box to enable the screw rod to rotate, so that the moving platform is driven to reciprocate on the guide base.
The screw rod is parallel to a guide rail A in the moving platform, one end of the screw rod is supported on the supporting seat through a pair of bearings A, the other end of the screw rod is fixedly connected with a gear A in the gear box, a gear B in the gear box is meshed with the gear A, and the gear B is connected with a driving motor in the guide base.
The self-adaptive assembly comprises a sliding seat B, a guide rail B, rollers, a rotating shaft and a swinging rod, wherein the sliding seat B is symmetrically arranged on two sides of the mobile platform, the guide rail B capable of sliding up and down is arranged in the sliding seat B in a matching manner, the rotating shaft is arranged at the end part of the guide rail B, the rollers are sleeved on the rotating shaft and are matched with the structure below the guide base, and the rollers move along the outline below the guide base under the driving of the guide rail B; the end part of the rotating shaft is provided with a swinging rod, so that the swinging rod can adapt to the height change of the roller when the profile below the guide base moves.
Two pairs of parallel sliding seats B are fixedly arranged on two sides of a sliding block in the moving platform, and a guide rail B is arranged in each sliding seat B; the roller is arranged on the rotating shaft through a bearing B, and a shaft sleeve is sleeved on the rotating shaft between the bearing B and the end part of the guide rail B and used for limiting the axial direction of the roller.
The roller is provided with roller steps which are matched with the step structures on the straight line section of the base below the guide base and the arc section of the base to form a limit structure, so that when the mobile platform moves on the guide base, the guide rail B stretches out and draws back in the sliding seat B to adapt to the height change of the roller when the roller moves between the straight line section of the base and the arc section of the base.
The swinging rod is arranged at the end parts of two rotating shafts at the same side of the sliding block in the moving platform, wherein one rotating shaft end part at one end of the swinging rod is connected through a matching hole, the other end of the swinging rod is provided with a section of swinging rod sliding groove which is sleeved with the other rotating shaft end part at the same side of the sliding block, and the matching of the swinging rod and the rotating shaft is limited by utilizing a screw E.
The probe assembly comprises a sliding seat C, a guide rail C, a probe fork and an ultrasonic probe, wherein the sliding seat C is arranged on the outer side of a swinging rod in the self-adaptive assembly, a guide rail C which is matched and slides is arranged in the sliding seat C, the lower end of the guide rail C is provided with the probe fork, a compression spring is sleeved on the guide rail C between the sliding seat C and the probe fork, a probe frame is arranged on the probe fork, and the ultrasonic probe is arranged in the probe frame and can swing with the probe frame to a certain extent under the support of the probe fork.
The invention has the remarkable effects that: the probe driving device for spherical girth weld ultrasonic inspection can drive the ultrasonic probe to move along a track matched with the outline of an inspected area, and can continuously and reciprocally move on the track formed by the straight line section and the circular arc section, so that the ultrasonic probe is always attached to the surface of the inspected area by a relatively stable telescopic distance and a small turning angle variation; therefore, the whole driving device is more stable in state when the ultrasonic probe reciprocates, the ultrasonic probe is more tightly attached to the surface of the detected area, the shaking is smaller, and finally the signal quality of ultrasonic detection is improved and improved.
Drawings
FIG. 1 is a schematic diagram of a probe driving device for ultrasonic inspection of spherical girth welds according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of the structure of an object under test;
FIG. 4 is a schematic view of a probe driving device for spherical girth joint ultrasonic inspection according to the present invention mounted on an object to be inspected;
FIG. 5 is a schematic view of a probe driving device for ultrasonic inspection of spherical girth welds in a straight line section;
FIG. 6 is a schematic view of a probe driving device for ultrasonic inspection of spherical girth welds in a state of a circular arc section according to the present invention;
in the figure: 1. a guide base; 2. a guide rail A; 3. a sliding seat A; 4. a sliding block; 5. a screw A; 6. a nut; 7. a screw B; 8. a screw rod; 9. a bearing A; 10. a support base; 11. a gear box; 12. a screw C; 13. a gear A; 14. a gear B; 15. a sliding seat B; 16. a screw D; 17. a guide rail B; 18. a roller; 19. a bearing B; 20. a shaft sleeve; 21. a swinging rod; 22. a rotating shaft; 23. a screw E; 24. a guide rail C; 25. a slide C; 26. a compression spring; 27. a probe fork; 28. a probe frame; 29. an ultrasonic probe; 30. an object to be inspected; 1001. a straight line section of the base; 1002. a base arc segment; 1003. a step structure; 18001. a roller step; 21001. a swinging rod chute; 30001. a detected welding line; 30002. cambered surface of the detected object; 30003. cylindrical surface of the object to be inspected.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1 and 2, a probe driving device for spherical girth weld ultrasonic inspection comprises a guide base 1, a slide seat A3, a screw rod 8, a gear box 11 and a slide seat B15, wherein a guide structure formed by combining a base straight line section 1001 and a base circular arc section 1002 is arranged below the guide base 1, and a step structure 1003 is arranged below the guide base 1; two guide rails A2 which are parallel to each other are arranged on the guide base 1 along the direction of the straight line section 1001 and the circular arc section 1002 of the base, two sliding seats A3 are arranged on each guide rail A2, and the sliding block 4 is connected with the four sliding seats A3 through screws A5 to form a moving platform; the nut 6 is mounted on the sliding block 4 through a screw B7; the screw rod 8 parallel to the guide rail A2 passes through the nut 6 and is supported and fixed through the supporting seat 10 and the gear box 11 which are arranged at the two ends of the guide base 1, wherein one end of the screw rod 8 is supported on the supporting seat 10 through a pair of bearings A9, the other end of the screw rod 8 is connected with a gear A13 in the gear box 11, the whole gear box 11 is fixed at the end part of the guide base 1 through a screw C12, a gear B14 meshed with the gear A13 in the gear box 11 is connected with a driving motor arranged in the guide base 1, the gear B14 is driven to rotate through the motor, the gear A13 and the screw rod 8 are driven to synchronously rotate, and therefore the nut 6 and the sliding block 4 are driven to reciprocate back and forth along the guide rail A2 to linearly move;
two pairs of sliding seats B15 which are arranged in parallel with each other are symmetrically arranged on two sides of the sliding block 4 through screws D16, guide rails B17 which can slide up and down in each sliding seat B15 are arranged in each sliding seat B15, a rotating shaft 22 is arranged between the end parts of the guide rails B17 positioned on two sides of the sliding block 4, a roller 18 is arranged on the rotating shaft 22 through a bearing B19, and a shaft sleeve 20 is sleeved on the rotating shaft 22 between the bearing B19 and the end parts of the guide rails B17 and used for axially limiting the roller 18; the roller 18 is provided with a roller step 18001, and the roller step 18001 is matched with a step structure 1003 below the guide base 1 and forms a limiting relationship, so that the roller 18 is realized and guided to move along the outline formed by the straight line section 1001 of the base and the arc section 1002 of the base; when the slide block seat 4 reciprocates linearly back and forth on the guide rail A2, the two rollers 18 move along the outline below the guide base 1 under the drive of the respective guide rail B17, wherein the guide rail B17 adapts to the height change of the rollers 18 when moving between the linear base section 1001 and the circular base arc section 1002 by telescoping in the slide seat B15;
the two rotating shafts 22 on the same side of the sliding block 4 are provided with a swinging rod 21 at the end, wherein one end of the swinging rod 21 is connected with one rotating shaft 22 end through a matching hole, the other end of the swinging rod 21 is provided with a swinging rod chute 21001 which is sleeved on the other rotating shaft 22 end on the same side of the sliding block 4, the matching of the swinging rod 21 and the rotating shaft 22 is limited by a screw E23, the swinging rod 21 is prevented from being separated from the rotating shaft 22 along the axial direction, and when the distance between the two rotating shafts 22 changes, the swinging rod 21 and one rotating shaft 22 can slide relatively in the range of the swinging rod chute 21001 so as to compensate the distance change generated between the two rotating shafts 22; a slide seat C25 is fixedly arranged on the outer side of each swing rod 21, and a guide rail C24 is arranged in the slide seat C25 and can slide in the slide seat C; the lower end of the guide rail C24 is provided with a probe fork 27, a compression spring 26 is sleeved on the guide rail C24 between the sliding seat C25 and the probe fork 27, a probe frame 28 is arranged on the probe fork 27, and an ultrasonic probe 29 is arranged in the probe frame and can swing with the probe frame 28 to a certain extent under the support of the probe fork 27;
as shown in fig. 3, the outline of the inspected object 30 is composed of an object cylindrical surface 30003, an inspected weld 30001 is positioned on the inspected object arc surface 30002 and is close to the inspected object cylindrical surface 30003, and when the inspected weld 30001 is inspected, the ultrasonic probe 29 is required to move on the inspected object arc surface 30002 and also required to move on the object cylindrical surface 30003; after the device shown in fig. 4 is fixedly installed, the position of the guide base 1 is fixed, the outline of the guide base 1 is matched with the outline of the detected object 30, the ultrasonic probe 29 is tightly attached to the detected object 30 under the action of the compression spring 26, and meanwhile, the swinging rod 21 is propped against due to the reaction of the compression spring 26, so that the roller 18 is always contacted with the straight line section 1001 or the circular arc section 1002 of the base of the guide base 1; when the sliding block 4 moves to one side of the supporting seat 10, the two rollers 18 are in contact with the straight line section 1001 of the base and are at the same height, the swinging rod 21 is parallel to the cylindrical surface 30003 of the detected object, and the ultrasonic probe 29 can keep close fit with the detected object 30 only by extending a fixed distance; as shown in fig. 5, when the slider 4 leans against the gear case 11, one roller 18 contacts with the base arc section 1002, the other roller 18 contacts with the base straight line section 1001, and as the slider 4 continuously moves, the swing lever 21 starts to transition from the horizontal state to the state tangential to the base arc section 1002, driving the ultrasonic probe 29 to smoothly transition from the object cylindrical surface 30003 to the object arc surface 30002; as shown in fig. 6, when the sliding block 4 approaches the gear case 11, the two rollers 18 are always in contact with the base arc 1002, the swing rod 21 is always parallel to the tangent line of the arc 30002 of the object to be inspected, the vertical distance is not significantly changed, the length of the ultrasonic probe 29 required to extend for close contact with the object 30 to be inspected is always stable, no significant change occurs, and the ultrasonic probe is always attached to the arc 30002 of the object to be inspected at an ideal angle. The probe driving device can enable the ultrasonic probe 29 to continuously and stably move between the cylindrical surface 30003 of the detected object and the circular arc surface 30002 of the detected object, can also enable the length distance required by the probe to be kept stable without great change, and further ensures the attaching effect.
Claims (6)
1. A probe drive arrangement for spherical girth joint ultrasonic inspection, its characterized in that: the device comprises a guide base (1), a moving platform, a driving mechanism, a self-adaptive assembly and a probe assembly, wherein the guide base (1) is a guide structure formed by combining a base straight line section (1001) and a base circular arc section (1002), the moving platform and the driving mechanism are arranged on the guide base (1), and the moving platform can be driven to linearly reciprocate on the guide base (1) through the driving mechanism; the self-adaptive assembly is arranged on the moving platform, can adaptively move along the lower end profile of the guide base (1), and is provided with a probe assembly for checking welding seams; the self-adaptive assembly comprises a sliding seat B (15), guide rails B (17), rollers (18), rotating shafts (22) and swinging rods (21), wherein the sliding seat B (15) is symmetrically arranged on two sides of a moving platform, two guide rails B (17) capable of sliding up and down are arranged in the sliding seat B (15) in a matching mode, the rotating shafts (22) are arranged at the end parts of the guide rails B (17), the rollers (18) are sleeved on the rotating shafts (22), and the rollers (18) are matched with the structure below the guide base (1), so that the rollers (18) move along the outline below the guide base (1) under the driving of the guide rails B (17); the ends of the two rotating shafts (22) are provided with swinging rods (21) which can adapt to the height change of the roller (18) when the profile below the guide base (1) moves; two pairs of parallel sliding seats B (15) are fixedly arranged on two sides of a sliding block (4) in the moving platform, and each sliding seat B (15) is provided with two parallel guide rails B (17); the roller (18) is arranged on the rotating shaft (22) through a bearing B (19), and a shaft sleeve (20) is sleeved on the rotating shaft (22) between the bearing B (19) and the end part of the guide rail B (17) and used for axially limiting the roller (18); the roller (18) is provided with a roller step (18001) which is matched with a step structure (1003) on a base straight line section (1001) and a base circular arc section (1002) below the guide base (1) and forms a limit structure, so that when the mobile platform moves on the guide base (1), the guide rail B (17) adapts to the height change of the roller (18) when moving between the base straight line section (1001) and the base circular arc section (1002) by stretching in the slide B (15); the swinging rod (21) is arranged on the end parts of two rotating shafts (22) on the same side of the sliding block (4) in the moving platform, wherein one rotating shaft (22) end part at one end of the swinging rod (21) is connected through a matching hole, one section of swinging rod sliding chute (21001) is arranged at the other end of the swinging rod (21), the swinging rod sliding chute is sleeved on the other rotating shaft (22) end part on the same side of the sliding block (4), and the matching of the swinging rod (21) and the rotating shaft (22) is limited by using a screw E (23).
2. A probe drive for spherical girth ultrasound inspection according to claim 1, wherein: the movable platform comprises a guide rail A (2), a sliding seat A (3) and a sliding block (4), wherein the guide rail A (2) is arranged on a guide base (1), the sliding seat A (3) is matched with the guide rail A (2), and the sliding block (4) is connected with the sliding seat A (3) to form the movable platform capable of moving along the guide rail A (2).
3. A probe drive for spherical girth ultrasound inspection according to claim 1, wherein: the movable platform comprises two guide rails A (2) which are parallel to each other, two sliding seats A (3) are arranged on each guide rail A (2) in a matching mode, and sliding blocks (4) are connected with the four sliding seats A (3) to form a whole.
4. A probe drive for spherical girth ultrasound inspection according to claim 1, wherein: the driving mechanism comprises a screw rod (8), a nut (6), a supporting seat (10) and a gear box (11), wherein the supporting seat (10) and the gear box (11) are respectively and fixedly installed at two ends of the guide base (1), the screw rod (8) is fixedly supported between the supporting seat (10) and the gear box (11), the nut (6) sleeved on the screw rod (8) and matched with the screw rod is fixedly connected with the moving platform, and the gear box (11) is driven by a driving motor installed in the guide base (1) to enable the screw rod (8) to rotate, so that the moving platform is driven to reciprocate on the guide base (1).
5. A probe drive for spherical girth ultrasound inspection as claimed in claim 4, wherein: the screw rod (8) is parallel to the guide rail A (2) in the mobile platform, one end of the screw rod (8) is supported on the supporting seat (10) through the pair of bearings A (9), the other end of the screw rod (8) is fixedly connected with the gear A (13) in the gear box (11), the gear B (14) in the gear box (11) is meshed with the gear A (13), and the gear B (14) is connected with the driving motor in the guide base (1).
6. A probe drive for spherical girth ultrasound inspection according to claim 1, wherein: the probe assembly comprises a sliding seat C (25), a guide rail C (24), a probe fork (27) and an ultrasonic probe (29), wherein the sliding seat C (25) is arranged on the outer side of a swinging rod (21) in the self-adaptive assembly, and the guide rail C (24) which is matched and slides is arranged in the sliding seat C (25); the lower end of the guide rail C (24) is provided with a probe fork (27), the guide rail C (24) between the slide seat C (25) and the probe fork (27) is sleeved with a compression spring (26), a probe frame (28) is arranged on the probe fork (27), and an ultrasonic probe (29) is arranged in the probe frame and can swing with the probe frame (28) to a certain extent under the support of the probe fork (27).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441553.0A CN109975414B (en) | 2017-12-27 | 2017-12-27 | Probe driving device for ultrasonic inspection of spherical girth weld |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711441553.0A CN109975414B (en) | 2017-12-27 | 2017-12-27 | Probe driving device for ultrasonic inspection of spherical girth weld |
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| CN109975414A CN109975414A (en) | 2019-07-05 |
| CN109975414B true CN109975414B (en) | 2024-02-09 |
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| CN113820469B (en) * | 2021-09-16 | 2023-07-28 | 哈尔滨工程大学 | Ball tube intersecting weld joint detection equipment |
| CN114354750B (en) * | 2021-12-31 | 2024-02-09 | 核动力运行研究所 | Plug weld phased array ultrasonic inspection device |
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