CN216926697U - TOFD detector for nondestructive inspection - Google Patents
TOFD detector for nondestructive inspection Download PDFInfo
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- CN216926697U CN216926697U CN202220509120.4U CN202220509120U CN216926697U CN 216926697 U CN216926697 U CN 216926697U CN 202220509120 U CN202220509120 U CN 202220509120U CN 216926697 U CN216926697 U CN 216926697U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to a TOFD detector for nondestructive test, it relates to the nondestructive test field, and it includes two at least probes and the anchor clamps spare that is used for the centre gripping probe, the probe is used for detecting a flaw pipeline and pipeline welding seam, still including connecting the horizontal pole, be equipped with on the anchor clamps spare be used for with anchor clamps spare location is in connect the locating component on the horizontal pole, it is right all to be equipped with at the both ends of connecting the horizontal pole the movement track of probe carries out spacing subassembly. The method and the device have the advantages that when nondestructive inspection is carried out on the circumferential welding line of the pipeline, the welding line is located on the central line of the two probes, and the scanning quality is improved.
Description
Technical Field
The application relates to the field of nondestructive inspection, in particular to a TOFD detector for nondestructive inspection.
Background
The time difference of diffraction (TOFD) ultrasonic detection technology is a detection technology which adopts a symmetrical arrangement of one emission and one receiving of double probes, accurately measures the diffraction wave propagation time of an end pin and an end point at a defect position, displays images and adopts a computer to complete the measurement of the size and the position of the defect, and a common TOFD detector has the problem of inconvenience in carrying when in use.
The existing TOFD detector is basically in a T-shaped structure, a probe and wheels are fixedly connected on the detector, when nondestructive inspection of a welding seam between two pipelines is carried out on the peripheral wall of the pipeline, an operator pushes the pipeline with one hand, the moving route of the detector is easy to bend in the pushing process, and the wheels of the detector are difficult to cling to the surface of a workpiece, so that the welding seam is difficult to be positioned on the central line of the two probes, and the quality of a scanned image is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that when the weld joint of the pipeline is subjected to nondestructive inspection, the motion route of the detector is bent, the weld joint is difficult to be positioned on the central line of the two probes, and the scanning quality is further influenced, the TOFD detector for nondestructive inspection is provided.
The application provides a TOFD detector for nondestructive inspection adopts following technical scheme:
the utility model provides a TOFD detector for nondestructive test, includes two at least probes and the anchor clamps spare that is used for the centre gripping probe, the probe is used for detecting a flaw to pipeline and pipeline welding seam, still including connecting the horizontal pole, be equipped with on the anchor clamps spare be used for with anchor clamps spare location is in connect the last locating component of horizontal pole, it all is equipped with at the both ends of connecting the horizontal pole and is used for right the movement track of probe carries out spacing subassembly.
By adopting the technical scheme, when the welding line of the pipeline is scanned and detected, the position of the clamp piece is adjusted and positioned by the positioning assembly, so that the welding line of the pipeline is positioned on a central line between the two probes, the motion trail of the probes is limited by the limiting assembly, and the situation that the welding line is difficult to be positioned on the central line of the two probes due to the fact that the motion route of the probes deviates when the welding line of the pipeline is subjected to nondestructive detection is avoided as much as possible, so that the scanning quality is influenced.
In a specific possible embodiment, the limiting assembly comprises a circular ring, and a plurality of abutting pieces are uniformly distributed on the circular ring along the circumferential direction.
Through adopting above-mentioned technical scheme, when spacing the motion trail of probe, at first peg graft the pipeline in the ring, then utilize a plurality of butt pieces along ring circumference evenly distributed to adjust the relative position between pipeline and the ring for the axis of pipeline and the axis collineation of ring, and then realize good scanning quality.
In a specific can embodiment, the butt piece includes to support depression bar, connecting block and to support the pressure nut, the connecting block with the periphery wall fixed connection of ring, the one end of supporting the depression bar slides in proper order and passes the connecting block with the ring, the other end of supporting the depression bar extends the connecting block and keeps away from the lateral wall of ring, support the pressure nut with the connecting block is kept away from the lateral wall fixed connection of pipeline outer wall, support the depression bar with support pressure nut threaded connection.
Through adopting above-mentioned technical scheme, when adjusting the relative position between pipeline and the ring, through rotating the pressure lever that supports, support the pressure lever and support and take place relative rotation between the pressure nut, and then support the radial motion of pressure lever along the pipeline, through changing the position that supports the pressure lever, realized the centre gripping location to the pipeline, be convenient for adjust.
In a specific possible embodiment, the end of the pressing rod facing the inner side of the circular ring is provided with a pressing cone.
Through adopting above-mentioned technical scheme, utilize to press the awl to reduce the area of contact between the tip that presses the pole and the pipeline, be convenient for adjust the position of pipeline.
In a specific implementation mode, a plurality of scale grooves are formed in the peripheral wall of the abutting rod, and the scale grooves are uniformly arranged along the axial direction of the abutting rod.
Through adopting above-mentioned technical scheme, when adjusting the position between pipeline and ring, utilize the scale groove to be convenient for will support and press the pole to remove to the position that corresponds, be convenient for adjust, save time.
In a specific embodiment, the positioning assembly includes a positioning block, a pressing bolt and a dovetail block, the positioning block is sleeved on the connecting cross rod, a dovetail groove for sliding the dovetail block is formed in the connecting cross rod, a screw of the pressing bolt is in threaded connection with the dovetail block, so that the pressing bolt is in sliding connection with the positioning block, and the positioning block is clamped between the dovetail block and a screw head of the pressing bolt.
By adopting the technical scheme, when the position of the fixture piece on the connecting cross rod is positioned, the position of the positioning block on the connecting cross rod is firstly moved, meanwhile, the dovetail block slides in the dovetail groove, when the positioning block moves to the designated position, the pressing bolt is screwed, relative rotation is generated between the pressing bolt and the positioning block, the pressing bolt drives the dovetail block to move towards the direction away from the bottom of the dovetail groove, the shoulder of the dovetail block is abutted and extruded with the groove wall of the dovetail groove, the positioning block is clamped between the dovetail block and the screw head of the pressing bolt, and the dovetail block and the positioning block are positioned by utilizing the friction force between the dovetail block and the groove wall of the dovetail groove, so that the positions of the fixture piece and the probe are positioned.
In a specific implementation scheme, the clamp piece is provided with an adjusting component for attaching the probe to the outer side wall of the pipeline, the adjusting component comprises a guide rod, a spring and a limiting block, the guide rod is fixedly connected with the side wall of the outer side wall of the pipeline far away from the clamp piece, the spring is sleeved on the guide rod, and the spring is arranged between the clamp piece and the opposite side wall of the positioning block.
Through adopting above-mentioned technical scheme, when carrying out nondestructive test to the welding seam of the pipeline of different diameters, the probe is laminated with the outer wall of pipeline under the elastic force effect of spring, and the guide bar is spacing to anchor clamps spare and probe for anchor clamps spare and probe are along the radial movement of pipeline, are convenient for scan the welding seam of the pipeline of different diameters.
In a specific embodiment, the connecting cross rod is connected with the pipeline in a circumferential sliding manner through a sliding assembly, the sliding assembly comprises a sliding block and a roller, the sliding block is fixedly connected with the connecting cross rod, a sliding groove for sliding the sliding block is formed in the circular ring, and the roller is rotatably connected with the sliding block.
Through adopting above-mentioned technical scheme, when carrying out nondestructive test to the welding seam of the circumference of pipeline, the manual work drives the motion of connecting the horizontal pole, connects the horizontal pole and drives anchor clamps spare and probe along the circumferential motion of pipeline, utilizes the slider in the spout cunning to and realize spacing to connecting horizontal pole and probe movement track, utilizes the gyro wheel to reduce the frictional force between slider and the spout cell wall, has realized good scanning effect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when scanning and detecting flaws of a welding line of a pipeline, firstly, the position of the clamp piece is adjusted and positioned by the positioning assembly, so that the welding line of the pipeline is positioned on a central line between the two probes, and the motion trail of the probes is limited by the limiting assembly, so that the situation that the welding line is difficult to be positioned on the central line of the two probes due to the fact that the motion route of the probes deviates when the welding line of the pipeline is subjected to nondestructive flaw detection is avoided as much as possible, and scanning quality is further influenced;
2. when adjusting the relative position between pipeline and the ring, through rotating the pressure lever that supports, support the pressure lever and support and take place relative rotation between the pressure nut, and then support the radial motion of pressure lever along the pipeline, through changing the position that supports the pressure lever, realized the centre gripping location to the pipeline, be convenient for adjust.
Drawings
Fig. 1 is a schematic structural diagram of an overall TOFD detector for nondestructive inspection according to an embodiment of the present disclosure.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is an exploded view of an embodiment of the present application for embodying a positioning assembly.
Fig. 4 is an enlarged view of fig. 3 at B.
Description of reference numerals: 1. connecting the cross bars; 2. a clamp member; 3. a probe; 4. a positioning assembly; 41. positioning blocks; 42. pressing the bolt; 43. a dovetail block; 5. a limiting component; 51. a circular ring; 52. an abutting member; 521. a pressing rod; 522. connecting blocks; 523. pressing the nut; 6. pressing the cone; 7. mounting grooves; 8. a scale groove; 9. a dovetail groove; 10. a slipping component; 101. a slider; 102. a roller; 11. a chute; 12. an adjustment assembly; 121. a guide bar; 122. a spring; 123. a limiting block; 13. mounting a plate; 14. a transverse plate; 15. a pipeline.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a TOFD detector for nondestructive inspection. Referring to fig. 1, the TOFD detector for nondestructive inspection comprises a connecting cross rod 1, wherein two sides of the connecting cross rod 1 are connected with clamp pieces 2 used for clamping probes 3 in a sliding manner, each clamp piece 2 is shaped like Jiong, the probes 3 are positioned in the clamp pieces 2, the clamp pieces 2 are positioned on the connecting cross rod 1 through positioning assemblies 4, and at the moment, circumferential welding seams of a pipeline 15 are positioned on central lines of the two probes 3, so that a good scanning inspection effect is realized; the two ends of the connecting cross rod 1 are provided with limiting components 5 for limiting the motion trail of the probe 3.
When scanning and detecting flaws of circumferential weld joints of a pipeline 15, firstly sliding the two clamp pieces 2, enabling the weld joints of the pipeline 15 to be arranged between the two probes 3, then positioning the two clamp pieces 2 on the connecting cross rod 1 by using the positioning component 4, at the moment, manually driving the connecting cross rod 1 and the probes 3 to move on the pipeline 15 by using hands, and limiting the movement track of the probes 3 by using the limiting component 5, so that when carrying out nondestructive flaw detection on the weld joints of the circumferential weld joints of the pipeline 15, the movement route deviation of the probes 3 is avoided as much as possible, the weld joints are separated from the central lines of the two probes 3, and therefore the scanning quality is influenced.
Referring to fig. 2, the limiting component 5 includes a circular ring 51 and four sets of abutting components 52, the circular ring 51 is sleeved outside the pipeline 15, the four sets of abutting components 52 are uniformly distributed along the circumference of the circular ring 51, the abutting components 52 include a pressing rod 521, a connecting block 522 and a pressing nut 523, the connecting block 522 is fixedly connected with the outer wall of the circular ring 51, the nut and the connecting block 522 are fixedly connected with the side wall far away from the circular ring 51, one end of the pressing rod 521 sequentially passes through the pressing nut 523, the other end of the pressing rod 521 extends out of the pressing nut 523 to be away from the side wall of the connecting block 522, the pressing rod 521 is in threaded connection with the pressing nut 523, a pressing cone 6 is arranged at one end, facing the pipeline 15, of the pressing rod 521, the pressing cone 6 is a cone, the diameter of the bottom surface of the pressing cone 6 is the same as that of the pressing rod 521, the pressing cone 6 is coaxially and fixedly connected with the pressing rod 521, and the top end of the pressing cone 6 is abutted against the outer wall of the pipeline 15; support and seted up mounting groove 7 on the outer wall of depression bar 521, the length direction of mounting groove 7 is parallel with the axis direction who supports depression bar 521, and a plurality of scale grooves 8 have been seted up to the tank bottom of mounting groove 7, and a plurality of scale grooves 8 evenly set up along the length direction of mounting groove 7.
When the circular ring 51 is installed, the pipeline 15 is firstly inserted into the circular ring 51, at the moment, the pressing rod 521 is screwed, the pressing rod 521 and the pressing nut 523 rotate relatively, the pressing rod 521 moves along the radial direction of the pipeline 15 until the top end of the pressing cone 6 is abutted against the outer wall of the pipeline 15, the circular ring 51 is positioned on the pipeline 15, and the contact area between the pressing rod 521 and the outer wall of the pipeline 15 is reduced by abutting the top end of the pressing cone 6 against the outer wall of the pipeline 15, so that the position of the pipeline 15 can be conveniently adjusted; the scale groove 8 is used for facilitating the movement of the abutting rods 521 to the relative position, when the scales on the four abutting rods 521 are the same, the axes of the pipeline 15 and the circular ring 51 are collinear, good scanning quality is achieved, adjustment is facilitated, and time is saved.
Referring to fig. 3, the positioning assembly 4 includes a positioning block 41, a pressing bolt 42 and a dovetail block 43, the positioning block 41 is sleeved on the connecting cross rod 1 and slides along the length direction of the connecting cross rod 1, the connecting cross rod 1 is far away from the side wall of the pipeline 15, a dovetail groove 9 is formed in the side wall of the dovetail groove 9, the extending direction of the dovetail groove 9 is parallel to the length direction of the connecting cross rod 1, the dovetail block 43 slides in the dovetail groove 9, the screw head of the pressing bolt 42 penetrates through the positioning block 41 and is far away from the side wall of the pipeline 15 and in threaded connection with the dovetail block 43, and the pressing bolt 42 and the positioning block 41 are connected in a sliding manner.
When the position of the fixture 2 is adjusted, the positioning block 41 is shifted by hand, the positioning block 41 drives the abutting bolt 42 to move along the length direction of the connecting cross rod 1, meanwhile, the abutting bolt 42 drives the dovetail block 43 to move along the length direction of the dovetail groove 9, when the positioning block 41 moves to the corresponding position, a circumferential welding seam of the pipeline 15 is enclosed between the two probes 3, at the moment, the abutting bolt 42 is screwed, the abutting bolt 42 drives the dovetail block 43 to move in the direction away from the bottom of the dovetail groove 9, the shoulder of the dovetail block 43 and the groove wall of the dovetail groove 9 are mutually extruded, the dovetail block 43 is positioned by using the friction force between the dovetail block 43 and the groove wall of the dovetail groove 9, the positioning block 41 is clamped between the dovetail block 43 and the screw head of the abutting bolt 42, and the fixture 2 and the probes 3 are further positioned.
Referring to fig. 3, the both ends of connecting horizontal pole 1 all are equipped with the drive and connect horizontal pole 1 subassembly 10 that slides on ring 51, have seted up spout 11 on the periphery wall of ring 51, and the longitudinal section of spout 11 is "T" type, and subassembly 10 that slides includes slider 101 and two gyro wheels 102, and two relative lateral walls of slider 101 all rotate with gyro wheel 102 to be connected, and two gyro wheels 102 drive slider 101 and slide in spout 11.
When the nondestructive inspection is performed on the circumferential welding line of the pipeline 15, the connecting cross rod 1 is driven to move along the circumferential direction of the circular ring 51 manually, at the moment, the sliding block 101 slides in the sliding groove 11, the probes 3 move along the circumferential direction of the pipeline 15 under the driving of the connecting cross rod 1, the friction force between the sliding block 101 and the groove wall of the sliding groove 11 is reduced by the roller 102, the good scanning effect is realized, and the condition that the scanning quality is influenced due to the fact that the welding line is separated from the central lines of the two probes 3 due to the deviation of the movement route of the probes 3 is avoided as much as possible.
Referring to fig. 3 and 4, an adjusting assembly 12 for driving the probe 3 and the pipe 15 to be attached to each other is arranged on the side wall of the positioning block 41 facing the pipe 15, the adjusting assembly 12 includes a guide rod 121, a spring 122 and a limiting block 123, the positioning block 41 is fixedly connected to the mounting plate 13 on the side wall of the pipe 15 facing the pipe 15, the mounting plate 13 is far away from a transverse plate 14 fixedly connected to the side wall of the positioning block 41, one end of the guide rod 121 passes through the transverse plate 14 and is fixedly connected to the clamp member 2, the other end of the guide rod 121 is fixedly connected to the limiting block 123, the spring 122 is sleeved on the guide rod 121, one end of the spring 122 is fixedly connected to the side wall of the pipe 15 facing the transverse plate 14, and the other end of the spring 122 is fixedly connected to the side wall of the pipe 15 facing the clamp member 2.
When the pipeline 15 with different diameters is subjected to nondestructive inspection, the clamp part 2 moves along the axis direction of the guide rod 121, and the probe 3 is attached to the outer wall of the pipeline 15 under the elastic action of the spring 122, so that the welding seams of the pipeline 15 with different diameters can be conveniently scanned, and a good scanning effect is realized.
The implementation principle of the TOFD detector for nondestructive inspection in the embodiment of the application is as follows: when the probe 3 is positioned on the pipeline 15, the pipeline 15 is firstly inserted into the circular ring 51, at this time, the abutting rod 521 is screwed, the abutting rod 521 and the abutting nut 523 rotate relatively, the abutting rod 521 moves along the radial direction of the pipeline 15 until the top end of the abutting cone 6 abuts against the outer wall of the pipeline 15, and when the scales on the four abutting rods 521 are the same, the axes of the pipeline 15 and the circular ring 51 are collinear; then, the positioning block 41 is shifted by hand, the positioning block 41 drives the abutting bolt 42 to move along the length direction of the connecting cross rod 1, when the positioning block 41 moves to the corresponding position, the circumferential welding line of the pipeline 15 is enclosed between the two probes 3, at the moment, the abutting bolt 42 is screwed, the positioning of the positioning block 41 is realized by utilizing the friction force between the dovetail block 43 and the groove wall of the dovetail groove 9, and further the positioning of the fixture piece 2 and the probes 3 is realized.
When carrying out nondestructive inspection to the welding seam of the circumference of pipeline 15, utilize the manual work to drive connecting cross rod 1 along the circumferential motion of ring 51, at this moment, slider 101 slides in spout 11, probe 3 is along the circumferential motion of pipeline 15 under the drive of connecting cross rod 1, thereby avoid the movement path skew of probe 3 to lead to the welding seam to break away from the central line department of two probes 3 as far as possible and influence the quality of scanning, anchor clamps spare 2 moves along the axis direction of guide bar 121, probe 3 laminates with the outer wall of pipeline 15 under the spring force effect of spring 122, realize good scanning flaw detection effect.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A TOFD detector for non-destructive inspection, comprising at least two probes (3) and a clamp member (2) for holding the probes (3), the probes (3) being used for inspecting pipes (15) and pipe (15) welds, characterized in that: still including connecting horizontal pole (1), be equipped with on anchor clamps spare (2) be used for with anchor clamps spare (2) location is in connect locating component (4) on horizontal pole (1), the both ends of connecting horizontal pole (1) all are equipped with and are used for right the motion trail of probe (3) carries out spacing subassembly (5).
2. The TOFD test apparatus for nondestructive inspection according to claim 1, wherein: the limiting assembly (5) comprises a circular ring (51), and a plurality of abutting parts (52) are uniformly distributed on the circular ring (51) along the circumferential direction.
3. The TOFD test instrument for non-destructive inspection according to claim 2, wherein: the abutting part (52) comprises an abutting rod (521), a connecting block (522) and an abutting nut (523), the connecting block (522) is fixedly connected with the outer peripheral wall of the ring (51), one end of the abutting rod (521) slides in sequence to pass through the connecting block (522) and the ring (51), the other end of the abutting rod (521) extends out of the connecting block (522) to be far away from the side wall of the ring (51), the abutting nut (523) is fixedly connected with the side wall of the connecting block (522) far away from the outer wall of the pipeline (15), and the abutting rod (521) is in threaded connection with the abutting nut (523).
4. The TOFD detector for non-destructive inspection according to claim 3, wherein: the end part of the pressing rod (521) facing the inner side of the circular ring (51) is provided with a pressing cone (6).
5. The TOFD detector for non-destructive inspection according to claim 3, wherein: the circumferential wall of the abutting rod (521) is provided with a plurality of scale grooves (8), and the scale grooves (8) are uniformly arranged along the axial direction of the abutting rod (521).
6. The TOFD test apparatus for nondestructive inspection according to claim 1, wherein: locating component (4) include locating piece (41), support and press bolt (42) and dovetail (43), locating piece (41) cover is established connect on horizontal pole (1), connect and offer the confession on horizontal pole (1) dovetail (9) that dovetail (43) slided, support the screw rod of pressing bolt (42) with dovetail (43) threaded connection, so support and press bolt (42) with locating piece (41) connection of sliding, locating piece (41) are held dovetail (43) with support and press between the spiral shell head of bolt (42).
7. The TOFD detector for non-destructive inspection according to claim 6, wherein: be equipped with on anchor clamps spare (2) be used for with adjusting part (12) of probe (3) laminating pipeline (15) lateral wall, adjusting part (12) include guide bar (121), spring (122) and stopper (123), guide bar (121) with anchor clamps spare (2) are kept away from the lateral wall fixed connection of pipeline (15) lateral wall, spring (122) cover is established on guide bar (121), spring (122) set up anchor clamps spare (2) with between the relative lateral wall of locating piece (41).
8. The TOFD test instrument for non-destructive inspection according to claim 2, wherein: connect horizontal pole (1) through slip subassembly (10) with the circumference of pipeline (15) is slided and is connected, the subassembly (10) that slides includes slider (101) and gyro wheel (102), slider (101) with connect horizontal pole (1) fixed connection, set up spout (11) that supply slider (101) to slide on ring (51), gyro wheel (102) with slider (101) rotate the connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220509120.4U CN216926697U (en) | 2022-03-08 | 2022-03-08 | TOFD detector for nondestructive inspection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220509120.4U CN216926697U (en) | 2022-03-08 | 2022-03-08 | TOFD detector for nondestructive inspection |
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| CN216926697U true CN216926697U (en) | 2022-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115684173A (en) * | 2022-10-18 | 2023-02-03 | 国家管网集团北方管道有限责任公司油气储运技术分公司 | Pipeline welding seam positioning device |
-
2022
- 2022-03-08 CN CN202220509120.4U patent/CN216926697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115684173A (en) * | 2022-10-18 | 2023-02-03 | 国家管网集团北方管道有限责任公司油气储运技术分公司 | Pipeline welding seam positioning device |
| CN115684173B (en) * | 2022-10-18 | 2023-03-31 | 国家管网集团北方管道有限责任公司油气储运技术分公司 | Pipeline welding seam positioning device |
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