CN218331365U - Core rod floating mechanism for ultrasonic pipe end detection - Google Patents
Core rod floating mechanism for ultrasonic pipe end detection Download PDFInfo
- Publication number
- CN218331365U CN218331365U CN202222238867.3U CN202222238867U CN218331365U CN 218331365 U CN218331365 U CN 218331365U CN 202222238867 U CN202222238867 U CN 202222238867U CN 218331365 U CN218331365 U CN 218331365U
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- floating
- linear guide
- mandrel
- buffer
- plate
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- 238000001514 detection method Methods 0.000 title description 11
- 239000000872 buffer Substances 0.000 claims abstract description 66
- 239000011435 rock Substances 0.000 claims abstract description 5
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000010959 steel Substances 0.000 abstract description 19
- 239000000523 sample Substances 0.000 abstract description 6
- 230000001629 suppression Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- G01N29/04—Analysing solids
-
- 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
Abstract
The utility model provides an ultrasonic wave pipe end detects uses plug relocation mechanism, including the plug subassembly, rotate the unit and the buffer unit floats, the sense terminal of plug subassembly inserts to the pipe end in, the stiff end and the rotation unit of plug subassembly link firmly, the rotation unit rotates along with the plug subassembly is synchronous, the rotation unit sets up the central position at the buffer unit that floats, the buffer unit that floats is installed to the equipment body on for rock the pipe end and carry out the buffering of floating in step and restrain. The utility model discloses an ultrasonic wave pipe end detects plug relocation mechanism's structural design theory, to the different specification steel pipes adopt the plug subassembly of different specifications, carry out synchronous unsteady suppression tip through four azimuth buffers to the steel pipe inner wall and rock, solved the steel pipe well because straightness accuracy deviation problem, tip rocking degree is great when rotatory, leads to the probe sound wave incident angle when detecting the steel pipe tip to change, seriously influences the problem of detected signal.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic wave pipe end detects, especially, relate to an ultrasonic wave pipe end detects uses plug relocation mechanism.
Background
At present, steel pipe end ultrasonic flaw detectors at home and abroad are diversified, the difficulty of pipe end ultrasonic detection is that the steel pipe has the problem of straightness deviation, and the end shaking degree is large during rotation, so that when a probe detects the end of the steel pipe, the incident angle of sound waves is changed, and detection signals are seriously influenced; therefore, this patent application has designed an ultrasonic wave pipe end and has detected with plug relocation mechanism.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an ultrasonic wave pipe end detects uses plug relocation mechanism to solve the ultrasonic flaw detector when rotatory, the body tip degree of rocking is great, leads to the probe when detecting the steel pipe tip, and sound wave incident angle changes, seriously influences the problem of detected signal.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides an ultrasonic wave pipe end detects uses plug relocation mechanism, includes the plug subassembly, rotates the unit and the buffer unit floats, the sense terminal of plug subassembly inserts to the pipe end in, the stiff end and the rotation unit of plug subassembly link firmly, the rotation unit rotates along with the plug subassembly is synchronous, the rotation unit sets up the central position at the buffer unit that floats, the buffer unit that floats is installed to the equipment body on for rock the pipe end and carry out the buffering of floating in step and restrain.
Furthermore, the floating buffer unit comprises a substrate, the substrate is arranged on the equipment body, the first floating module and the second floating module are arranged in an up-and-down stacking mode, and the first floating module and the second floating module move in a vertical direction;
the center of the base plate is provided with a through hole for the rotation unit to act.
Furthermore, the floating module I comprises a plurality of first buffers, a plurality of first linear guide rails and a plurality of connecting plates, the plurality of first linear guide rails are fixedly arranged on the base plate, and the connecting plates are fixedly arranged on the plurality of first linear guide rails;
the first buffer is mounted on the base plate through the first mounting plate, the plurality of buffers are respectively and uniformly arranged at two ends of the base plate, the setting direction of the first buffer is the same as the moving direction of the first linear guide rail, and the guide shaft end of the first buffer is fixedly connected with the connecting plate through the first floating support plate;
the central position of the connecting plate is provided with a through hole corresponding to the through hole.
The floating module II comprises a second buffer, a second linear guide rail and a front end plate, wherein the number of the second linear guide rail and the number of the second buffer are multiple, the multiple second linear guide rails are fixedly arranged on the connecting plate, and the front end plate is fixedly arranged on the multiple second linear guide rails;
the buffer II is mounted on the connecting plate through the mounting plate II, the plurality of buffers II are respectively and uniformly arranged at two ends of the connecting plate, the setting direction of the buffer II is the same as the moving direction of the linear guide rail II, and the guide shaft end of the buffer II is fixedly connected with the front end plate through the floating support plate II;
the front end plate is provided with a fixing hole for installing the rotating unit.
Further, the rotating unit comprises a mounting seat and a rotating shaft arranged in the mounting seat;
the longitudinal section of the mounting seat is of a T-shaped structure, the mounting seat is mounted in a fixing hole of the front end plate, one end of the rotating shaft is assembled in the mounting seat through a double-row conical sub-bearing, a front end cover for positioning the double-row conical sub-bearing is arranged at the end part of the rotating shaft, and a shaft sleeve, a stop washer and a round nut are sequentially assembled on the rotating shaft between the front end cover and the double-row conical sub-bearing;
the other end of pivot is equipped with deep groove ball bearing, and the other end tip of pivot passes through the rear end cap and fixes a position deep groove ball bearing to the mount pad in.
Furthermore, the mandrel component is fixedly connected with the rotating shaft through a connecting flange, and a buffer cushion is arranged between the mandrel component and the connecting flange.
Furthermore, a coded disc for detecting a signal with a tube is fixedly arranged at the end part of one end of the rotating shaft, which is far away from the core rod assembly;
a sensor support is fixedly arranged on the outer wall of the mounting seat, and a proximity switch for detecting the in-place signal of the pipe body is arranged on the sensor support.
Furthermore, a straight-through type pressure injection oil cup used for lubricating the double-row conical sub-bearing is further arranged on the mounting seat.
Compared with the prior art, an ultrasonic wave pipe end detects and uses plug relocation mechanism have following beneficial effect:
(1) A ultrasonic wave pipe end detects uses plug relocation mechanism passes through ultrasonic wave pipe end and detects plug relocation mechanism's structural design theory, to the plug subassembly that different specification steel pipes adopted different specifications, float in step through four directions buffer to the steel pipe inner wall and restrain the tip and rock, solved the steel pipe well because straightness accuracy deviation problem, tip rocking degree is great when rotatory, leads to the probe sound wave incident angle when detecting the steel pipe tip to change, seriously influences the problem of detected signal.
(2) A ultrasonic wave pipe end detects and uses plug relocation mechanism can effectively improve equipment detection precision and product quality, satisfy its technological requirement of detecting a flaw, accord with on-the-spot actual demand.
Drawings
The accompanying drawings, which form a part of the present disclosure, are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings:
fig. 1 is a cross-sectional view of a mandrel floating mechanism for ultrasonic pipe end inspection according to an embodiment of the present invention;
fig. 2 is a schematic view of a first angle structure of a mandrel floating mechanism for ultrasonic pipe end inspection according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second angle structure of a mandrel floating mechanism for ultrasonic pipe end inspection according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a third angle structure of a mandrel floating mechanism for ultrasonic pipe end detection according to an embodiment of the present invention;
fig. 5 is a fourth angular structural schematic diagram of a mandrel floating mechanism for ultrasonic pipe end inspection according to an embodiment of the present invention.
Description of reference numerals:
1. a mandrel assembly; 2. a rotating unit; 21. a mounting seat; 22. a rotating shaft; 23. a double-row conical sub-bearing; 24. a front end cap; 25. a shaft sleeve; 26. a stop washer; 27. a round nut; 28. a deep groove ball bearing; 29. a rear end cap; 3. a floating buffer unit; 31. a substrate; 32. a first buffer; 33. a first linear guide rail; 34. a connecting plate; 35. a first floating support plate; 36. a second buffer; 37. a second linear guide rail; 38. a front end plate; 39. a second floating support plate; 310-mounting a plate I; 311-mounting plate two; 4. a connecting flange; 5. a cushion pad; 6. code disc; 7. a sensor holder; 8. a proximity switch; 9. straight-through type pressure injection oil cup.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 4, a mandrel floating mechanism for ultrasonic tube end detection includes a mandrel assembly 1, a rotating unit 2 and a floating buffer unit 3, wherein a detection end of the mandrel assembly 1 is inserted into a tube end, a fixed end of the mandrel assembly 1 is fixedly connected with the rotating unit 2, the rotating unit 2 rotates synchronously with the mandrel assembly 1, the rotating unit 2 is disposed at a central position of the floating buffer unit 3, and the floating buffer unit 3 is mounted on an apparatus body and used for synchronously floating buffer-inhibiting tube end shaking.
The floating buffer unit 3 comprises a substrate 31, the substrate 31 is mounted on an equipment body, the equipment body applied in the technical scheme is ultrasonic flaw detection equipment, a first floating module and a second floating module are stacked up and down, and the first floating module and the second floating module move in the vertical direction;
a through hole for operating the rotating unit 2 is provided at the center of the base plate 31.
The technical scheme includes that the number of the first buffer 32, the first linear guide rail 33, the second buffer 36 and the second linear guide rail 37 is two, the first linear guide rail 33 and the second linear guide rail 37 are circumferentially and uniformly distributed in four directions, the arrangement directions of the first buffer 32 and the second buffer 36 are the same as those of the first linear guide rail 33 and the second linear guide rail 37 correspondingly, and the two linear guide rails are in a group and move in two vertical directions; besides the application, the buffer and the linear guide rail which meet the requirement of actual quantity can be adopted to realize the movement in two vertical directions;
the first floating module comprises a first buffer 32, a first linear guide rail 33 and a connecting plate 34, the number of the first linear guide rails 33 and the number of the first buffers 32 are multiple, the multiple first linear guide rails 33 are fixedly arranged on the base plate 31, the linear guide rails are fixed through guide rail pressing plates, and the connecting plate 34 is fixedly arranged on the multiple first linear guide rails 33;
the first buffer 32 is mounted on the base plate 31 through the first mounting plate 310, the first buffers 32 are respectively and uniformly arranged at two ends of the base plate 31, the setting direction of the first buffer 32 is the same as the moving direction of the first linear guide rail 33, the guide shaft ends of the first buffer 32 are fixedly connected with the connecting plate 34 through the first floating support plate 35, and the pressure value of the buffer can be manually adjusted through a wrench to meet actual requirements on site;
the center of the connecting plate 34 is provided with a through hole corresponding to the through hole, and the aperture of the through hole arranged on the connecting plate 34 and the aperture of the through hole arranged on the base plate 31 can satisfy the integral floating of the mandrel assembly 1.
The second floating module comprises a second buffer 36, a second linear guide rail 37 and a front end plate 38, the number of the second linear guide rails 37 and the number of the second buffer 36 are multiple, the multiple second linear guide rails 37 are fixedly arranged on the connecting plate 34, and the front end plate 38 is fixedly arranged on the multiple second linear guide rails 37;
the second buffer 36 is installed on the connecting plate 34 through a second installation plate 311, the second buffers 36 are respectively and uniformly arranged at two ends of the connecting plate 34, the setting direction of the second buffer 36 is the same as the moving direction of the second linear guide rail 37, and the guide shaft ends of the second buffer 36 are fixedly connected with a front end plate 38 through a second floating support plate 39;
the front end plate 38 is provided with a fixing hole for mounting the rotating unit 2.
The rotating unit 2 comprises a mounting seat 21 and a rotating shaft 22 arranged in the mounting seat 21;
the longitudinal section of the mounting seat 21 is a T-shaped structure, the mounting seat 21 is mounted in a fixing hole of a front end plate 38, one end of a rotating shaft 22 is assembled in the mounting seat 21 through a double-row conical bearing 23, a front end cover 24 for positioning the double-row conical bearing 23 is arranged at the end part of the rotating shaft 22, a shaft sleeve 25, a stop washer 26 and a round nut 27 are sequentially assembled on the rotating shaft 22 between the front end cover 24 and the double-row conical bearing 23, and the double-row conical bearing 23 in the technical scheme adopts a 352214X2 type bearing;
the other end of the rotating shaft 22 is equipped with a deep groove ball bearing 28, the deep groove ball bearing 28 in the technical scheme is a 6010-2RZ type bearing, the deep groove ball bearing 28 is positioned into the mounting seat 21 through a rear end cover 29 at the other end of the rotating shaft 22, and the rear end cover 29 is used for bearing positioning and sealing.
The core rod assembly 1 is fixedly connected with the rotating shaft 22 through the connecting flange 4, the technical scheme can synchronously rotate the tube body, the core rod assembly 1, the rotating shaft 22 and the code disc 6, the buffer cushion 5 is arranged between the core rod assembly 1 and the connecting flange 4, and the buffer cushion 5 is used for damping and buffering;
the mandrel component 1 that adopts among this technical scheme is the part is purchased on site, and this patent application does not improve itself, and mandrel component 1 among this technical scheme can adopt different specification models according to different specification steel pipes to satisfy the on-the-spot demand of detecting can.
A coded disc 6 for detecting a signal with a tube is fixedly arranged at one end part of the rotating shaft 22 far away from the core rod assembly 1;
a sensor support 7 is fixedly arranged on the outer wall of the mounting seat 21, and a proximity switch 8 for detecting a pipe body in-place signal is arranged on the sensor support 7.
The mounting seat 21 is also provided with a straight-through type pressure filling oil cup 9 for lubricating the double-row conical sub-bearing 23.
Through the structural design concept of the ultrasonic pipe end detection mandrel floating mechanism, different specifications of mandrel components 1 are adopted for different specifications of steel pipes, the inner walls of the steel pipes are synchronously floated through a four-direction buffer to inhibit the end portions from shaking, and the problems that the incidence angle of sound waves of a probe is changed when the probe detects the end portions of the steel pipes and the detection signals are seriously influenced due to the fact that the end portions of the steel pipes are shaken to a large degree when the steel pipes rotate due to the straightness deviation of the steel pipes are well solved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an ultrasonic wave pipe end detects uses plug relocation mechanism which characterized in that: including mandrel subassembly (1), rotation unit (2) and unsteady buffer unit (3), the sense terminal of mandrel subassembly (1) inserts to the pipe end in, the stiff end and the rotation unit (2) of mandrel subassembly (1) link firmly, rotation unit (2) rotate along with mandrel subassembly (1) is synchronous, rotation unit (2) set up the central position at unsteady buffer unit (3), unsteady buffer unit (3) are installed to the equipment body on for rock the pipe end and carry out the buffering of floating in step and restrain.
2. The ultrasonic pipe end inspection mandrel floating mechanism according to claim 1, wherein: the floating buffer unit (3) comprises a substrate (31), the substrate (31) is installed on the equipment body, the first floating module and the second floating module are arranged in an up-down stacking mode, and the first floating module and the second floating module move in the vertical direction;
a through hole for the rotation unit (2) to operate is provided at the center of the substrate (31).
3. The ultrasonic tube end inspection mandrel floating mechanism according to claim 2, wherein: the first floating module comprises a first buffer (32), a first linear guide rail (33) and a connecting plate (34), the number of the first linear guide rails (33) and the number of the first buffer rails (32) are multiple, the multiple first linear guide rails (33) are fixedly arranged on the base plate (31), and the connecting plate (34) is fixedly arranged on the multiple first linear guide rails (33);
the first buffers (32) are mounted on the base plate (31) through the first mounting plate (310), the first buffers (32) are respectively and uniformly arranged at two ends of the base plate (31), the setting direction of the first buffers (32) is the same as the moving direction of the first linear guide rail (33), and guide shaft ends of the first buffers (32) are fixedly connected with the connecting plate (34) through a first floating support plate (35);
the center of the connecting plate (34) is provided with a through hole corresponding to the through hole.
4. A floating mechanism of a mandrel for ultrasonic pipe end inspection according to claim 3, wherein: the floating module II comprises a second buffer (36), a second linear guide rail (37) and a front end plate (38), the number of the second linear guide rail (37) and the number of the second buffer (36) are multiple, the linear guide rails (37) are fixedly arranged on the connecting plate (34), and the front end plate (38) is fixedly arranged on the linear guide rails (37);
the second buffer (36) is mounted on the connecting plate (34) through a second mounting plate (311), the second buffers (36) are uniformly arranged at two ends of the connecting plate (34) respectively, the setting direction of the second buffers (36) is the same as the moving direction of the second linear guide rail (37), and the guide shaft ends of the second buffers (36) are fixedly connected with the front end plate (38) through a second floating support plate (39);
the front end plate (38) is provided with a fixing hole for installing the rotating unit (2).
5. The ultrasonic tube end inspection mandrel floating mechanism according to claim 4, wherein: the rotating unit (2) comprises a mounting seat (21) and a rotating shaft (22) arranged in the mounting seat (21);
the longitudinal section of the mounting seat (21) is of a T-shaped structure, the mounting seat (21) is mounted in a fixing hole of a front end plate (38), one end of a rotating shaft (22) is assembled into the mounting seat (21) through a double-row conical sub-bearing (23), a front end cover (24) for positioning the double-row conical sub-bearing (23) is arranged at the end part of the rotating shaft (22), and a shaft sleeve (25), a stop washer (26) and a round nut (27) are sequentially assembled on the rotating shaft (22) between the front end cover (24) and the double-row conical sub-bearing (23);
the other end of the rotating shaft (22) is assembled with a deep groove ball bearing (28), and the other end of the rotating shaft (22) positions the deep groove ball bearing (28) into the mounting seat (21) through a rear end cover (29).
6. The ultrasonic pipe end inspection mandrel floating mechanism according to claim 5, wherein: the mandrel component (1) is fixedly connected with the rotating shaft (22) through a connecting flange (4), and a cushion pad (5) is arranged between the mandrel component (1) and the connecting flange (4).
7. The ultrasonic pipe end inspection mandrel floating mechanism according to claim 5, wherein: a coded disc (6) for detecting a signal with a tube is fixedly arranged at one end part of the rotating shaft (22) far away from the core rod assembly (1);
a sensor support (7) is fixedly arranged on the outer wall of the mounting seat (21), and a proximity switch (8) for detecting the in-place signal of the pipe body is arranged on the sensor support (7).
8. The ultrasonic tube end inspection mandrel floating mechanism according to claim 5, wherein: the mounting seat (21) is also provided with a straight-through type pressure filling oil cup (9) for lubricating the double-row conical sub-bearing (23).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222238867.3U CN218331365U (en) | 2022-08-24 | 2022-08-24 | Core rod floating mechanism for ultrasonic pipe end detection |
| PCT/CN2022/119561 WO2024040654A1 (en) | 2022-08-24 | 2022-09-19 | Mandrel floating mechanism for ultrasonic tube end detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222238867.3U CN218331365U (en) | 2022-08-24 | 2022-08-24 | Core rod floating mechanism for ultrasonic pipe end detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218331365U true CN218331365U (en) | 2023-01-17 |
Family
ID=84883146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222238867.3U Active CN218331365U (en) | 2022-08-24 | 2022-08-24 | Core rod floating mechanism for ultrasonic pipe end detection |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218331365U (en) |
| WO (1) | WO2024040654A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB881449A (en) * | 1957-02-07 | 1961-11-01 | Glass Developments Ltd | Improvements in or relating to ultrasonic flaw detecting apparatus |
| CN201239828Y (en) * | 2008-08-15 | 2009-05-20 | 常州常宝精特钢管有限公司 | Apparatus for repairing interior surface crack of steel pipe |
| CN201935898U (en) * | 2010-12-07 | 2011-08-17 | 核动力运行研究所 | Ultrasonic automatic inspection device for penetrating pipe fitting of top cover of pressure vessel |
| CN103293220B (en) * | 2012-02-27 | 2016-03-02 | 秦召明 | Ultrasonic nondestructive flaw detection system |
| CN103884778B (en) * | 2014-03-17 | 2016-01-06 | 杭州浙达精益机电技术股份有限公司 | End water sealing device during weldless steel tube pipe end online Ultrasonic Detection |
| CN206638627U (en) * | 2016-11-30 | 2017-11-14 | 冷小琪 | Pipe detection scanner |
| CN215910401U (en) * | 2021-08-02 | 2022-02-25 | 北京加力信科技有限公司 | Portable ultrasonic flaw detection device for axle end of railway axle |
| CN114252508A (en) * | 2021-12-13 | 2022-03-29 | 宝武杰富意特殊钢有限公司 | Floating water seal device for round steel ultrasonic flaw detector, use method of floating water seal device and round steel ultrasonic flaw detector |
-
2022
- 2022-08-24 CN CN202222238867.3U patent/CN218331365U/en active Active
- 2022-09-19 WO PCT/CN2022/119561 patent/WO2024040654A1/en unknown
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| Publication number | Publication date |
|---|---|
| WO2024040654A1 (en) | 2024-02-29 |
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