An ultrasonic testing device for metallurgical composite pipes

Abstract

The present invention relates to the technical field of pipeline defect detection, and specifically to an ultrasonic detection device for metallurgical composite pipes, comprising a detection module, a mobile module, a rotating module, and an adaptive component. The output end of the mobile module is provided with a plurality of lifting cylinders, the output end of the lifting cylinder is provided with a connecting frame, the connecting frame is rotatably connected to a movable bracket, the connecting frame is rotatably connected to the movable bracket through the adaptive component, and the movable bracket is rotatably connected to the corresponding mounting bracket through the adaptive component. Through the setting of the adaptive component, the movable bracket and the mounting bracket can be rotated in different directions, thereby enabling the ultrasonic probe to rotate in multiple directions, so that when the ultrasonic probe encounters a protrusion during movement along the central axis of the pipeline, it can rotate in multiple directions relative to the protrusion to fit the outer circumference of the pipeline, and can be reset by a torsion spring when no protrusion is encountered, ultimately improving the detection efficiency of the ultrasonic probe.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and in particular to an ultrasonic detection device for metallurgical composite pipes. Background Art

[0002] Metallurgical composite pipes are high-performance pipes made by combining different metal materials through metallurgical processes and are widely used in various industrial fields. After pipe fabrication, the base material is typically inspected for defects in both the transverse and longitudinal directions, along with thickness testing. Transverse testing is performed along the pipe's circumference, while longitudinal testing is performed along the central axis.

[0003] Existing ultrasonic inspection equipment for metallurgical composite pipes typically consists of a rotating module and a moving module. During inspection, the moving module drives the ultrasonic probe up and down until it is in close contact with the pipe's outer circumference. The moving module then drives the ultrasonic probe along the pipe's central axis to detect longitudinal defects along a line parallel to the pipe's central axis. The rotating module then rotates the pipe to inspect the entire circumference of the pipe.

[0004] By rotating the pipe using the rotary module, a specific cross section of the pipe base material can be inspected for defects horizontally. The ultrasonic probe can then be moved horizontally along the central axis of the pipe using the mobile module to inspect the entire periphery of the pipe base material horizontally.

[0005] However, since some small protrusions may appear on the outer circumference of the pipe during the manufacturing process, the movement of the ultrasonic probe along the central axis of the pipe by only moving the module may gradually be hindered, resulting in the ultrasonic probe not always being able to fit the outer circumference of the pipe, affecting the detection efficiency of the ultrasonic probe. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve the technical problem is: to provide an ultrasonic detection device for metallurgical composite pipes, including a detection module, a moving module and a rotating module for driving the pipe to rotate, the detection module including multiple ultrasonic probes and a mounting bracket for mounting the ultrasonic probes,

[0007] The output end of the mobile module is provided with a plurality of lifting cylinders, and the output end of the lifting cylinder is provided with a connecting frame, and the connecting frame is rotatably connected to a movable bracket;

[0008] It also includes an adaptive component, the connecting frame is rotatably connected to the movable bracket through the adaptive component, the movable bracket is rotatably connected to the corresponding mounting bracket through the adaptive component, the plane formed by the rotation direction of the movable bracket and the cross-section of the pipeline are perpendicular to each other, and the rotation axis of the mounting bracket and the central axis of the pipeline are parallel to each other; the adaptive component includes a connecting rod and a torsion spring, the torsion spring is sleeved on the connecting rod, and the ultrasonic probe is swung axially and radially around the outer circumference of the pipeline through the adaptive component, thereby fitting the outer circumference of the pipeline.

[0009] Furthermore, two ends of the torsion spring located between the movable bracket and the connecting frame are connected to the movable bracket and the connecting frame respectively.

[0010] Furthermore, two ends of a torsion spring located between the movable bracket and the corresponding mounting bracket are connected to the movable bracket and the corresponding mounting bracket respectively.

[0011] Furthermore, the movable bracket includes a first bracket and a second bracket, the first bracket is rotatably connected to the connecting bracket through an adaptive component, the second bracket is provided with a sliding groove, a sliding block is slidably provided in the sliding groove, the mounting bracket is rotatably connected to the sliding block through the adaptive component, the mounting bracket is provided with a positioning member, the positioning member is provided with a limiting groove 1, the second bracket is provided with a limiting column, the limiting column is provided with a limiting part, a compression spring is sleeved on the limiting column, one end of the compression spring is abutted against the positioning column, and the other end of the compression spring is abutted against the limiting part, the limiting column is slidably set in the limiting groove 1, and the relative sliding direction of the positioning member and the limiting column is the same as the sliding direction of the sliding block.

[0012] Furthermore, the positioning member includes a first positioning block and a second positioning block, the first positioning block is fixedly connected to the mounting bracket, the limiting groove is opened on the second positioning block, the first positioning block is provided with an arc-shaped surface, and the second positioning block is provided with a first arc-shaped groove adapted to the arc-shaped surface, and the first arc-shaped groove and the mounting bracket are concentrically arranged relative to the rotation axis of the second bracket.

[0013] Furthermore, a sliding portion is provided at one end of the limiting column that slides in the limiting groove 1, the diameter of the sliding portion is larger than the diameter of the limiting column, and the inner wall of the limiting groove 1 is provided with a limiting groove 2 that is compatible with the sliding portion, and the sliding portion is slidably arranged in the limiting groove 2.

[0014] Furthermore, the first bracket and the second bracket are fixedly connected.

[0015] Furthermore, the first bracket and the second bracket are rotatably connected, and the first bracket rotates in the plane where the second bracket is located, and the rotation axis of the second bracket relative to the first bracket is arranged in the vertical direction.

[0016] Furthermore, the second bracket is provided with a first support shaft, the support shaft is coaxially fixed with a rotating gear, the rotating gear is provided with a rack, the rack is connected to a connecting block, the first bracket is connected to a support frame, the support frame is provided with a support groove, two relatively set limit springs are provided in the support groove, the end of the connecting block is located between the two limit springs, the connecting block is provided with connecting shafts corresponding to the two limit springs respectively, the connecting shaft is passed through the corresponding limit springs, and a limit slide groove 1 corresponding to the two connecting shafts is opened on the groove wall of the support groove, the connecting shaft is passed through the limit slide groove 1, and the two ends of the limit spring are respectively pressed on the groove wall of the support groove and the connecting block.

[0017] Furthermore, the first bracket is provided with a second arc groove, the second bracket is provided with an arc block adapted to the arc groove, the arc block is swingably set in the second arc groove, and the second arc groove and the second bracket are adapted to the rotation trajectory relative to the first bracket.

[0018] The beneficial effect of the present invention is that: through the setting of the adaptive component, the movable bracket and the mounting bracket can be rotated in different directions respectively, and the ultrasonic probe can be rotated in multiple directions. As a result, when the ultrasonic probe encounters a protrusion during movement along the central axis of the pipeline, it can rotate in multiple directions relative to the protrusion to fit the outer circumference of the pipeline, and can be reset by the torsion spring when no protrusion is encountered, thereby ultimately improving the detection efficiency of the ultrasonic probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] In the picture: Figure 1 This is an overall structural diagram of the ultrasonic testing equipment for metallurgical composite pipes according to the first embodiment of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 A three-dimensional structural diagram of the movable bracket and the mounting bracket according to the second embodiment of the present invention;

[0023] Figure 4 for Figure 3 A top view of the movable bracket and the mounting bracket;

[0024] Figure 5 for Figure 4 AA sectional view;

[0025] Figure 6 for Figure 4 A three-dimensional structural diagram of the partial structure shown;

[0026] Figure 7 for Figure 4 A front view of the structure shown;

[0027] Figure 8 A three-dimensional structural diagram of the movable bracket and the mounting bracket according to the third embodiment of the present invention;

[0028] Figure 9 for Figure 8 A three-dimensional structural diagram of the movable bracket and the mounting bracket from another perspective;

[0029] Figure 10 for Figure 8 A three-dimensional structural diagram of the movable bracket and the mounting bracket after the limiting bracket is hidden;

[0030] Figure 11 for Figure 8 A top view of the portion of the structure shown;

[0031] Figure 12 for Figure 11 BB cross-sectional view;

[0032] Figure 13 for Figure 11 A three-dimensional structural diagram of the partial structure shown.

[0033] Figure 14 for Figure 8 A three-dimensional structural diagram of the partial structure shown;

[0034] Description of reference numerals:

[0035] 11. Ultrasonic probe; 12. Mounting bracket; 121. Positioning member; 1211. First positioning block; 1212. Second positioning block; 1213. Arc surface; 1214. First arc groove; 122. Limiting groove 1; 1221. Limiting groove 2; 20. Moving module; 21. Lifting cylinder; 22. Connecting frame; 23. Connecting rod; 231. Torsion spring; 232. Fixed shaft; 30. Movable bracket; 31. First bracket; 311. Support frame; 3111. Support groove; 3112. Limiting spring; 3113. Limiting slide 1; 3114. Limiting slide 2; 312. Limiting frame; 3121. Displacement limit slot; 3122, placement slot; 313, second arc-shaped slot; 3131, limiting roller; 3132, annular slot; 32, second bracket; 321, sliding slot; 3211, moving slot; 322, sliding block; 323, limiting column; 3231, limiting part; 3232, compression spring; 3233, sliding part; 324, first support shaft; 3241, rotating gear; 3242, rack; 3243, connecting block; 3244, connecting shaft; 3245, limiting block; 325, arc-shaped block; 41, placement rack; 42, positioning column; 43, slide rail; 51, rotating motor; 52, roller; 200, pipeline. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic principles of the present invention in an illustrative manner, and therefore only shows the structures related to the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] Please refer to Figure 1 The present invention provides ultrasonic testing equipment for metallurgical composite pipes, comprising a testing module, a moving module 20, a placement module, a rotating module, and an adaptive assembly. The testing module includes multiple ultrasonic probes 11 and a mounting bracket 12 for mounting the ultrasonic probes 11. Specifically, in this embodiment, three types of ultrasonic probes 11 are provided, each used to detect longitudinal and transverse defects in the base material of the pipe 200, as well as the thickness of the pipe 200.

[0039] by Figure 1 The plane where the module is placed is shown as a horizontal plane, and the height direction of the module is a vertical direction.

[0040] Please refer to Figure 1 and Figure 2The output end of the mobile module 20 is equipped with multiple lifting cylinders 21. The output end of the lifting cylinders 21 is equipped with a connecting frame 22. The connecting frame 22 is rotatably connected to a movable bracket 30. The movable bracket 30 is rotatably connected to the corresponding mounting bracket 12. The movable bracket 30 is rotatably connected to the connecting frame 22 via an adaptive assembly. The mounting bracket 12 is rotatably connected to the corresponding movable bracket 30 via the adaptive assembly. The plane formed by the rotation direction of the movable bracket 30 is perpendicular to the cross-section of the pipe 200. The rotation axis of the mounting bracket 12 is parallel to the central axis of the pipe 200. The ultrasonic probe 11 swings axially and radially around the outer circumference of the pipe 200 via the adaptive assembly, thereby conforming to the outer circumference of the pipe 200.

[0041] The adaptive component includes a connecting rod 23 and a torsion spring 231. The torsion spring 231 is mounted on the connecting rod 23. The two ends of the torsion spring 231 located between the movable bracket 30 and the connecting bracket 22 are respectively connected to the movable bracket 30 and the connecting bracket 22. The two ends of the torsion spring 231 located between the movable bracket 30 and the corresponding mounting bracket 12 are respectively connected to the movable bracket 30 and the corresponding mounting bracket 12. The connecting rod 23 serves as a rotation axis, and the connecting rod 23 and the rotating side are relatively fixed. Specifically, the movable module 20 includes two screw transmission mechanisms, one arranged along the central axis direction of the pipe 200 and the other arranged along the vertical direction. The screw transmission mechanism is a prior art. The movable module 20 is used to drive the ultrasonic probe 11 to move to correspond to the pipe 200.

[0042] By setting up the adaptive component, the movable bracket 30 and the mounting bracket 12 can rotate in different directions respectively, and thus the ultrasonic probe 11 can rotate in multiple directions. As a result, when the ultrasonic probe 11 encounters a protrusion during its movement along the central axis of the pipe 200, it can rotate in multiple directions relative to the protrusion to fit the outer periphery of the pipe 200, and can be reset by the torsion spring 231 when no protrusion is encountered, thereby ultimately improving the detection efficiency of the ultrasonic probe 11.

[0043] Please refer to Figure 1 The placement module includes at least two placement racks 41, with the two ends of the pipe 200 placed on each rack 41. To prevent the pipe 200 from moving along its central axis during testing, positioning posts 42 are provided on the racks 41 to limit the axial position of the pipe 200. The positioning posts 42 on the two racks 41 are placed at the two axial ends of the pipe 200.

[0044] Please refer to Figure 1The rotating module includes a rotating motor 51 and a roller 52 disposed at the output end of the rotating motor 51. The rotating motor 51 is used to drive the roller 52 to rotate the pipe 200 around the central axis of the pipe 200. The rotating motor 51 is mounted on the placement rack 41. Specifically, each placement rack 41 is equipped with two rotating motors 51 disposed opposite each other, and the two rotating motors 51 are arranged in pairs about the central axis of the pipe 200.

[0045] Please refer to Figure 1 To accommodate pipes 200 of varying lengths, a slide rail 43 is provided at the bottom of the placement rack 41. The placement rack 41 is equipped with pulleys that mate with the slide rail 43. To position pipes 200 of varying lengths, the two placement racks 41 are moved along the slide rails 43 to the axial ends of the pipe 200. Positioning posts 42 are used to position the pipe 200, and the two placement racks 41 are then secured to the slide rails 43 with screws (the screws are not shown).

[0046] During testing, the ultrasonic probe 11 is first moved to the outer circumference of the pipe 200 by the movable module 20 in conjunction with the lifting cylinder 21. The rotary motor 51 then drives the roller 52 to rotate, thereby causing the pipe 200 to rotate. Simultaneously, the movable module 20 drives the ultrasonic probe 11 to move along the central axis of the pipe 200. This allows for longitudinal and transverse defect detection and location of defects in the pipe 200 parent material, as well as for measuring the thickness of the pipe 200. The principles of defect detection and location of the pipe 200 parent material using the ultrasonic probe 11, as well as thickness detection of the pipe 200, are conventional techniques and will not be described in detail in this embodiment.

[0047] Example 2

[0048] Please refer to Figure 3 The difference between this embodiment and the first embodiment is that the movable bracket 30 includes a first bracket 31 and a second bracket 32, and the first bracket 31 and the second bracket 32 ​​are fixedly connected, the first bracket 31 is rotatably connected to the connecting frame 22 through an adaptive component, and the second bracket 32 ​​is rotatably connected to the mounting bracket 12 through an adaptive component.

[0049] Because the protrusions on the outer periphery of the pipe 200 are relatively large, even after the ultrasonic probe 11 is rotated in multiple directions as described in the first embodiment, the ultrasonic probe 11 still cannot contact the protrusions on the outer periphery of the pipe 200. In other words, the ultrasonic probe 11 is required to move away from the outer periphery of the pipe 200. Therefore, in this embodiment, the second bracket 32 ​​and the mounting bracket 12 are required to move relative to each other in addition to relative rotation.

[0050] Please refer to the Figure 4 、 Figure 5 and Figure 6The second bracket 32 ​​is provided with a sliding groove 321, in which a sliding block 322 is slidably mounted. The connecting rod 23, which serves as the rotation axis of the movable bracket 30, is fixedly connected to the mounting bracket 12 and rotatably mounted on the sliding block 322. The torsion spring 231, which is mounted on the connecting rod 23, has its ends connected to the sliding block 322 and the mounting bracket 12, respectively. The mounting bracket 12 is provided with a positioning member 121, which is provided with a limiting groove 122. The second bracket 32 ​​is provided with a limiting post 323, which is provided with a limiting portion 3231. A compression spring 3232 is mounted on the limiting post 323. One end of the compression spring 3232 abuts against the positioning member 42, and the other end of the compression spring 3232 abuts against the limiting portion 3231. The limiting post 323 is slidably mounted in the limiting groove 122. The relative sliding direction between the positioning member 121 and the limiting post 323 is the same as the sliding direction of the sliding block 322. Specifically, the sliding block 322 is circular.

[0051] Please refer to Figure 6 In order to limit the sliding block 322 and prevent the sliding block 322 from separating from the sliding groove 321, the diameter of the sliding block 322 in this embodiment is larger than the groove width of the sliding groove 321, and the groove wall of the sliding groove 321 is provided with a moving groove 3211 that is compatible with the sliding block 322, and the moving groove 3211 is located in the middle of the sliding groove 321 in the depth direction.

[0052] Please refer to Figure 5 To limit the position of the limiting post 323 and prevent it from separating from the positioning member 121, a sliding portion 3233 is provided at one end of the limiting post 323 that extends through the first limiting groove 122 and is concentric with the limiting post 323. The diameter of the sliding portion 3233 is larger than that of the limiting post 323. The inner wall of the first limiting groove 122 is provided with a second limiting groove 1221 that matches the sliding portion 3233. The sliding portion 3233 slides within the second limiting groove 1221. Specifically, the sliding portion 3233 is circular.

[0053] For further information, please refer to Figure 3 and Figure 5When the rotational force of the torsion spring 231 drives the mounting bracket 12 to rotate and reset relative to the second bracket 32, the gravity acting on the mounting bracket 12 may easily hinder the torsion spring 231 from resetting. The positioning member 121 in this embodiment includes a first positioning block 1211 and a second positioning block 1212. The first positioning block 1211 is fixedly connected to the mounting bracket 12, and the second positioning block 1212 is slidably connected to the limiting column 323. The limiting groove 122 is defined on the second positioning block 1212. The first positioning block 1211 is provided with an arcuate surface 1213, and the second positioning block 1212 is provided with a first arcuate groove 1214 that matches the arcuate surface 1213. The first arcuate groove 1214 is concentric with the rotation axis of the mounting bracket 12 relative to the second bracket 32. The arcuate surface 1213 and the first arcuate groove 1214 cooperate to limit the relative rotation between the mounting bracket 12 and the second bracket 32. The first arcuate groove 1214 supports the arcuate block 325, reducing the influence of the mounting bracket 12's own gravity when the torsion spring 231 rotates and resets the mounting bracket 12. Furthermore, because the first arcuate groove 1214 and the second bracket 32 ​​are concentric with the rotation axis of the first bracket 31, the first arcuate groove 1214 supports the mounting bracket 12 without affecting its rotation relative to the second bracket 32.

[0054] In this embodiment, the setting of the sliding block 322 allows the mounting bracket 12 to rotate relative to the second bracket 32 ​​and also to move relative to the second bracket 32. As a result, when the ultrasonic probe 11 encounters a larger protrusion, it can rotate relative to the pipe 200 and also move relative to the pipe 200. When encountering a protrusion, the ultrasonic probe 11 can fit the outer periphery of the pipe 200, further increasing the applicability of the ultrasonic probe 11 to the protrusions on the outer periphery of the pipe 200, and ultimately improving the detection efficiency of the ultrasonic probe 11.

[0055] Example 3

[0056] Please refer to Figure 8 The difference between this embodiment and the second embodiment is that the first bracket 31 and the second bracket 32 ​​are connected in a rotational manner, and the second bracket 32 ​​is rotated relative to the rotation axis of the first bracket 31 along Figure 1 The vertical direction is set.

[0057] For details, please refer to Figure 8 、 Figure 9 and Figure 10The second bracket 32 ​​is provided with a first support shaft 324, and a rotating gear 3241 is coaxially fixed to the support shaft. A rack 3242 is provided on the rotating gear 3241, and a connecting block 3243 is connected to the rack 3242. The first bracket 31 is connected to the support frame 311, and the support frame 311 is provided with a supporting groove 3111. Two limiting springs 3112 are arranged oppositely in the supporting groove 3111. The end of the connecting block 3243 is located between the two limiting springs 3112. A connecting shaft 3244 corresponding to the two limit springs 3112 is provided on the connecting block 3243, and the connecting shaft 3244 is passed through the corresponding limit spring 3112. A limit slide 3113 corresponding to the two connecting shafts 3244 is opened on the groove wall of the support groove 3111, and the connecting shaft 3244 is passed through the limit slide 3113. The two ends of the limit spring 3112 are respectively pressed on the groove wall of the support groove 3111 and the connecting block 3243.

[0058] It is understandable that when the connecting shaft 3244 is located between the two limit springs 3112 , the second bracket 32 ​​does not rotate relative to the first bracket 31 .

[0059] When the ultrasonic probe 11 is subjected to force, causing the second bracket 32 ​​to rotate relative to the first bracket 31, the second bracket 32 ​​drives the first support shaft 324 to rotate, causing the rotating gear 3241 to rotate and the rack 3242 to move, thereby driving the connecting block 3243 to move. The connecting block 3243 is then forced to compress one of the limit springs 3112 in the support groove 3111. The limit spring 3112 is compressed and generates a reverse support force on the connecting block 3243. When the ultrasonic probe 11 is no longer subjected to force, the force generated by the return of the limit spring 3112 causes the connecting block 3243 to return to its original position and drives the rotating gear 3241 to rotate in the opposite direction, ultimately resetting the ultrasonic probe 11.

[0060] Please refer to Figure 11 and Figure 12 In order to limit the movement displacement of the connecting shaft 3244 and prevent the connecting shaft 3244 from disengaging from the limiting slide groove 1 3113, a limiting block 3245 is provided at one end of the connecting shaft 3244 passing through the limiting slide groove 1 3113. The size of the limiting block 3245 is larger than that of the connecting shaft 3244. A limiting slide groove 2 3114 that is compatible with the limiting block 3245 is provided in the limiting slide groove 1 3113. The limiting block 3245 is slidably set in the limiting slide groove 2 3114.

[0061] Please refer to Figure 11 and Figure 13The first bracket 31 is also provided with a limiting frame 312. The limiting frame 312 has a displacement limiting groove 3121, along which the connecting block 3243 slides. The limiting frame 312 also has a placement groove 3122 for accommodating the rack 3242. The rack 3242 slides within the placement groove 3122. Specifically, the serrated portion of the rack 3242 is arranged along the length of the rack 3242. The serrated portion protrudes from one end of the rack 3242 in the height direction and extends into the placement groove 3122. A gap is left between the top of the placement groove 3122 and the serrated portion of the rack 3242 to facilitate clearance of the end of the first support shaft 324.

[0062] For further information, please refer to Figure 8 and Figure 14 In order to limit the rotation trajectory of the second bracket 32 ​​relative to the first bracket 31 and prevent the second bracket 32 ​​from rotating around other rotation axes relative to the first bracket 31, the first bracket 31 is provided with a second arc groove 313, and the second bracket 32 ​​is provided with an arc block 325 adapted to the arc groove. The arc block 325 is swingably set in the second arc groove 313, and the second arc groove 313 and the rotation trajectory of the second bracket 32 ​​relative to the first bracket 31 are adapted.

[0063] Please refer to Figure 14 To enhance the smoothness of the second bracket 32 ​​relative to the first bracket 31, a limiting roller 3131 is rotatably connected within the second arcuate groove 313, and the limiting roller 3131 and the arcuate block 325 are in rolling contact. Specifically, an annular groove 3132 is defined on the outer periphery of the limiting roller 3131. The contact point between the annular groove 3132 and the arcuate block 325, as well as the groove wall of the second arcuate groove 313, are both located on the rotation trajectory of the second bracket 32.

[0064] In this embodiment, the arrangement of the rotating gear 3241, the rack 3242, and the limit spring 3112 enables the second bracket 32 ​​to rotate about a vertically arranged rotation axis, allowing the ultrasonic probe 11 to conform to the outer circumference of the pipe 200 when encountering a protrusion. Compared to the second embodiment, the technical solution in this embodiment increases the rotation range of the ultrasonic probe 11, further broadening the scope of application of the ultrasonic probe 11 to protrusions on the outer circumference of the pipe 200, and ultimately improving the detection efficiency of the ultrasonic probe 11.

[0065] It is understandable that for ease of presentation, Figures 3 to 14 In addition to the features of the mounting bracket 12 described in the second and third embodiments, the rest of the structure of the mounting bracket 12 is shown in a simplified form. In addition to the features of the mounting bracket 12 described in the second and third embodiments, the rest of the structure of the mounting bracket 12, the relative position relationship between the mounting bracket 12 and the ultrasonic probe 11, and the connection method are the same as those in the embodiment 2 and the third embodiment. Figure 1 、 Figure 2Stay consistent.

[0066] Please refer to Figure 7 Taking the second bracket 32 ​​and sliding block 322 in the second embodiment as an example, the connecting rod 23 is relatively fixed to the second bracket 32. To facilitate the connection with the torsion spring 231, the sliding block 322 and the second bracket 32 ​​are each provided with a fixed shaft 232 that matches the end of the torsion spring 231. The two ends of the torsion spring 231 are respectively clipped onto the fixed shaft 232. In the above embodiment, the torsion spring 231 and the connecting rod 23 are installed in the same manner.

Claims

1. An ultrasonic detection device for metallurgical composite pipes, comprising a detection module, a moving module (20) and a rotating module for driving the pipe (200) to rotate, wherein the detection module comprises a plurality of ultrasonic probes (11) and a mounting bracket (12) for mounting the ultrasonic probes (11), characterized in that: The output end of the mobile module (20) is provided with a plurality of lifting cylinders (21), the output end of the lifting cylinder (21) is provided with a connecting frame (22), and the connecting frame (22) is rotatably connected to a movable bracket (30); The invention also includes an adaptive component, wherein the connecting frame (22) is rotatably connected to the movable bracket (30) through the adaptive component, and the movable bracket (30) is rotatably connected to the corresponding mounting bracket (12) through the adaptive component. The plane formed by the rotation direction of the movable bracket (30) and the cross section of the pipeline (200) are perpendicular to each other, and the rotation axis of the mounting bracket (12) and the central axis of the pipeline (200) are parallel to each other. The adaptive component includes a connecting rod (23) and a torsion spring (231), and the torsion spring (231) is sleeved on the connecting rod (23). The ultrasonic probe (11) swings around the outer periphery of the pipeline (200) in the axial direction and the radial direction respectively through the adaptive component, thereby fitting the outer periphery of the pipeline (200). Two ends of a torsion spring (231) located between the movable bracket (30) and the connecting bracket (22) are respectively connected to the movable bracket (30) and the connecting bracket (22); Two ends of a torsion spring (231) located between the movable bracket (30) and the corresponding mounting bracket (12) are respectively connected to the movable bracket (30) and the corresponding mounting bracket (12); The movable bracket (30) includes a first bracket (31) and a second bracket (32), the first bracket (31) is rotatably connected to the connecting frame (22) through an adaptive component, the second bracket (32) is provided with a sliding groove (321), a sliding block (322) is slidably provided in the sliding groove (321), the mounting bracket (12) is rotatably connected to the sliding block (322) through the adaptive component, the mounting bracket (12) is provided with a positioning member (121), the positioning member (121) is provided with a limiting groove (122), the second bracket ( 32) is provided with a limiting column (323), a limiting portion (3231) is provided on the limiting column (323), a compression spring (3232) is sleeved on the limiting column (323), one end of the compression spring (3232) is abutted against the positioning column (42), and the other end of the compression spring (3232) is abutted against the limiting portion (3231), the limiting column (323) is slidably arranged in the limiting groove (122), and the relative sliding direction of the positioning member (121) and the limiting column (323) is the same as the sliding direction of the sliding block (322).

2. The ultrasonic testing equipment for metallurgical composite pipes according to claim 1, characterized in that: The positioning member (121) includes a first positioning block (1211) and a second positioning block (1212), the first positioning block (1211) and the mounting bracket (12) are fixedly connected, the limiting groove (122) is opened on the second positioning block (1212), the first positioning block (1211) is provided with an arc surface (1213), the second positioning block (1212) is provided with a first arc groove (1214) adapted to the arc surface (1213), and the first arc groove (1214) and the mounting bracket (12) are concentrically arranged relative to the rotation axis of the second bracket (32).

3. The ultrasonic testing equipment for metallurgical composite pipes according to claim 2, characterized in that: One end of the limiting column (323) sliding in the limiting groove (122) is provided with a sliding portion (3233), the diameter of the sliding portion (3233) is larger than the diameter of the limiting column (323), the inner wall of the limiting groove (122) is provided with a limiting groove (1221) adapted to the sliding portion (3233), and the sliding portion (3233) is slidably arranged in the limiting groove (1221).

4. The ultrasonic testing equipment for metallurgical composite pipes according to claim 1, 2 or 3, characterized in that: The first bracket (31) and the second bracket (32) are fixedly connected.

5. The ultrasonic testing equipment for metallurgical composite pipes according to claim 1, 2 or 3, characterized in that: The first bracket (31) and the second bracket (32) are rotatably connected, and the first bracket (31) rotates in the plane where the second bracket (32) is located, and the rotation axis of the second bracket (32) relative to the first bracket (31) is arranged in the vertical direction.

6. The ultrasonic testing equipment for metallurgical composite pipes according to claim 5, characterized in that: The second bracket (32) is provided with a first support shaft (324), a rotating gear (3241) is coaxially fixed to the support shaft, a rack (3242) is provided on the rotating gear (3241), a connecting block (3243) is connected to the rack (3242), a supporting frame (311) is connected to the first bracket (31), a supporting groove (3111) is provided on the supporting frame (311), two limiting springs (3112) arranged opposite to each other are provided in the supporting groove (3111), and the ends of the connecting block (3243) are located between the two limiting springs (3 112), the connecting block (3243) is provided with connecting shafts (3244) corresponding to the two limit springs (3112), the connecting shafts (3244) are inserted into the corresponding limit springs (3112), the groove wall of the support groove (3111) is provided with a limit slide groove (3113) corresponding to the two connecting shafts (3244), the connecting shaft (3244) is inserted into the limit slide groove (3113), and the two ends of the limit spring (3112) are pressed on the groove wall of the support groove (3111) and the connecting block (3243) respectively.

7. The ultrasonic testing equipment for metallurgical composite pipes according to claim 6, characterized in that: One end of the limiting column (323) passing through the limiting groove (122) is provided with a sliding portion (3233), the diameter of the sliding portion (3233) is larger than the diameter of the limiting column (323), the inner wall of the limiting groove (122) is provided with a limiting groove (1221) adapted to the sliding portion (3233), and the sliding portion (3233) is slidably arranged in the limiting groove (1221).

8. The ultrasonic testing equipment for metallurgical composite pipes according to claim 6, characterized in that: The first bracket (31) is provided with a second arc-shaped groove (313), and the second bracket (32) is provided with an arc-shaped block (325) adapted to the arc-shaped groove. The arc-shaped block (325) is swingably arranged in the second arc-shaped groove (313), and the second arc-shaped groove (313) and the second bracket (32) are adapted to the rotation trajectory relative to the first bracket (31).

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