Equipment and Detection Method for Phased Array Detection of Tube Socket Fillet Welds

Abstract

The present invention relates to the technical field of phased array detection, specifically an apparatus for phased array detection of nozzle fillet welds, including a bearing seat, on which device bodies are symmetrically and fixedly arranged. A display screen is installed on the device body, and a retraction chamber is arranged at the rear end of the device body. A mobile detection mechanism is installed in the retraction chamber. When the mobile detection mechanism is not performing detection work, it is inserted into the retraction chamber, and the retraction chamber plays a role in protecting it. Upper supporting blocks are symmetrically and fixedly arranged at the upper end of the device body, and a mobile protection assembly is carried on the upper supporting blocks, which plays a role in protecting the display screen. The present invention also relates to a method for phased array detection of nozzle fillet welds, including the following steps: Step 1: Outward movement of the detection frame; Step 2: Separation of the fluoroscopy protection plate; Step 3: Positioning of the bearing seat; Step 4: Weld detection.

Description

Technical Field

[0001] The present invention relates to the technical field of phased array detection, and specifically to an apparatus and a detection method for phased array detection of nozzle fillet welds. Background Art

[0002] The nozzle fillet usually refers to the fillet weld formed at the connection between the nozzle seat and the cylinder or pipeline in equipment such as power station boilers and pressure vessels. Such welds are structurally complex, often involving differences in thickness and complexity of shape. Therefore, defects such as incomplete penetration, lack of fusion, and cracks are likely to occur during the welding process. These defects will directly affect the safety and reliability of the equipment. Therefore, phased array detection is required to ensure the quality of the weld. Phased array detection is an advanced non-destructive testing method. It uses an array composed of multiple small ultrasonic probes, and through electronic control of the probes to emit and receive ultrasonic waves, thereby realizing the detection of the weld. However, the existing phased array detection equipment is inconvenient to operate when detecting nozzle fillet welds. It cannot rely on the pipeline to fix the equipment, making the positioning of the detection equipment rather troublesome, often consuming a lot of time. This not only increases the working intensity of the staff but also affects the detection work efficiency. In addition, the existing phased array detection equipment has poor self-protection performance. Due to the complex environment at the detection site, key components are easily damaged. Summary of the Invention

[0003] The purpose of the present invention is to provide an apparatus and a detection method for phased array detection of nozzle fillet welds to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An apparatus for phased array detection of nozzle fillet welds includes a bearing seat. Symmetrically and fixedly arranged on the bearing seat are equipment main bodies. A display screen is installed on the equipment main body. An indentation chamber is arranged at the rear end of the equipment main body, and a mobile detection mechanism is installed in the indentation chamber;

[0006] When the mobile detection mechanism is not performing detection work, it is inserted into the indentation chamber, and the indentation chamber plays a role in protecting it;

[0007] Symmetrically and fixedly arranged at the upper end of the equipment main body are upper supporting blocks, and a mobile protection assembly is carried on the upper supporting blocks to protect the display screen;

[0008] A detection driving mechanism is also installed on the bearing seat. The detection driving mechanism drives the mobile detection mechanism and the mobile protection assembly to move to ensure the progress of the detection work;

[0009] The mobile detection mechanism and the detection driving mechanism are connected with an equipment positioning component, and the detection driving mechanism drives the equipment positioning component to move to realize the positioning of the bearing seat.

[0010] Preferably, the detection driving mechanism includes a connecting strip board, a control strip board and a gear. A moving channel is formed in the connecting strip board, and mounting channels are symmetrically arranged on the connecting strip board on both sides of the moving channel;

[0011] A support connecting block is fixedly arranged on the rear end face of the bearing seat. The connecting strip board is located at the rear side of the bearing seat, and a bearing inner rod is fixedly arranged in the mounting channel.

[0012] Preferably, an installation carrier sleeve is fixedly arranged on the equipment main body. A chamber connecting hole is formed inside the installation carrier sleeve, and the chamber connecting hole is communicated with the retraction chamber;

[0013] Support carrier bars are symmetrically and fixedly arranged on both sides of the bearing seat. A limiting through hole is formed in the support carrier bar, and lower support blocks are symmetrically and fixedly arranged at the lower end of the bearing seat. A bearing through hole is arranged on the lower support block.

[0014] Preferably, fitting support rods are symmetrically and fixedly arranged at both ends of the connecting strip board. A rack is fixedly arranged at the upper end of the fitting support rod, and a first spring is sleeved on the fitting support rod;

[0015] The fitting support rod is inserted into the limiting through hole;

[0016] The rack meshes with the gear. A support block is fixedly arranged on the gear. A threaded through hole is formed in the support block, and a bearing is sleeved on the support block;

[0017] The bearing is installed in the installation carrier sleeve.

[0018] Preferably, a movable bearing block is installed in the mounting channel. A locking jack is formed at the lower end of the movable bearing block, and a rod fitting hole is also formed in the movable bearing block. The bearing inner rod is inserted into the rod fitting hole;

[0019] A first driving rod is hinged to the upper end of the movable bearing block, and the upper end of the first driving rod is hinged to the support connecting block;

[0020] The control strip board is installed on the lower side of the connecting strip board. Fixed columns are symmetrically and fixedly arranged at both ends of the control strip board. Before the connecting strip board moves downward, it is fixed by the fixed columns.

[0021] Preferably, a moving fitting rod is fixedly arranged at the middle position of the control strip board. The moving fitting rod is inserted into the moving channel;

[0022] A mating block is fixedly arranged at the upper end of the movable mating rod, and positioning cylinders are symmetrically and fixedly arranged on the control strip plates on both sides of the movable mating rod. The connecting strip plate is fixed through the positioning cylinders during the downward movement;

[0023] Elastic sheets are also fixedly arranged on the control strip plates, and the upper ends of the elastic sheets are fixed on the connecting strip plate.

[0024] Preferably, the movable detection mechanism is a detection frame. A detection probe is fixedly installed on the detection frame, and a threaded load rod is also fixedly arranged on the detection frame;

[0025] The threaded load rod passes through the chamber connection hole and is threadedly inserted into the threaded through hole, and the thread directions of the threaded load rods on the two equipment main bodies are opposite;

[0026] A continuous plate strip is fixedly arranged on the threaded load rod. The continuous plate strip is located outside the retracted chamber, and a continuous rod is fixedly arranged at the lower end of the continuous plate strip. The continuous rod is inserted into the bearing through hole, and a continuous frame is fixedly arranged on the continuous rod;

[0027] A second driving rod is hinged on the continuous frame, and the second driving rod is connected with a movable protection component.

[0028] Preferably, the movable protection component is a perspective protection plate. An upper top protection plate is fixedly arranged at the upper end of the perspective protection plate, and protruding bearing blocks are symmetrically and fixedly arranged on the upper top protection plate;

[0029] A support mating rod is fixedly arranged on the protruding bearing block, and the support mating rod is inserted into the support through hole;

[0030] The lower end of the perspective protection plate is hinged with the second driving rod, and a protruding load plate is also fixedly arranged at the lower end of the perspective protection plate. An activity insertion hole is formed on the protruding load plate.

[0031] Preferably, the equipment positioning component includes an installation bearing plate and a linkage bearing block. The installation bearing plate is installed on the perspective protection plate. A positioning bearing plate is fixedly arranged at the upper end of the installation bearing plate, and inclined mating plates are symmetrically and fixedly arranged at the upper and lower ends of the positioning bearing plate;

[0032] An activity load rod is fixedly arranged at the lower end of the installation bearing plate. The activity load rod is inserted into the activity insertion hole, and a connection channel is formed at the lower end of the installation bearing plate. The connection channel is connected with a linkage bearing block;

[0033] The linkage bearing block is inserted into the installation channel. A mating activity hole is formed on the linkage bearing block. A bearing inner rod is inserted into the mating activity hole, and a second spring is sleeved on the bearing inner rod;

[0034] A linkage bearing bar is fixedly arranged on the linkage bearing block, a linkage channel is opened on the linkage bearing bar, a channel plug rod is inserted in the linkage channel, a connecting block is fixedly arranged on the channel plug rod, a connecting plug rod is fixedly arranged on the connecting block, and the connecting plug rod is inserted in the connecting channel.

[0035] A phased array detection method for a pipe socket fillet weld comprises the following steps:

[0036] Step 1: Move the detection frame outward: Pull down the connecting strip to drive the detection frame to move outward, so that the detection probe surrounds the periphery of the weld;

[0037] Step 2: Move the perspective protective plate away from the main body of the equipment, so that the staff can operate the main body of the equipment more conveniently.

[0038] Step 3: Positioning of the bearing seat: As the connecting strip moves downward, it will also drive the mounting support plate to move toward each other, so that the oblique matching plate contacts the pipe to clamp the pipe, and then the bearing seat is positioned and fixed on the pipe;

[0039] Step 4: Weld detection: Detect the weld using a detection probe.

[0040] Compared with the prior art, the invention has the following advantages:

[0041] 1. When the equipment is not in use, the transparent protective plate can provide good protection for the display screen on the equipment, and the detection frame is in the retracted chamber. In this way, the detection probe on the detection frame can be well protected under the protection of the retracted chamber, which fully ensures the safety of the key components of the equipment. When in use, you only need to pull the connecting strip to position and fix the equipment through the pipeline. The operation is very simple, convenient and fast.

[0042] 2. When the equipment is in use, pull down the connecting strip to drive the detection frame to protrude outside the indented chamber, and make the detection probe outside the weld to wrap it up, so as to facilitate all-round detection. At the same time, as the detection frame moves, it can drive the perspective protective plate to move away from the display screen, so that the perspective protective plate can still protect the display screen while leaving operating space, which is convenient for the staff to operate the main body of the equipment.

[0043] 3. Additionally, as the connecting strip board moves downward, it will also drive the installation bearing board to move, thereby causing the diagonal fitting board on the installation bearing board to come into contact with the pipeline. In this way, under the action of the diagonal fitting board, the pipeline can be tightly clamped, and thus the device can be fixed on the pipeline. Moreover, the diagonal fitting boards on the positioning bearing board are symmetrically arranged with upper and lower inclinations, and under the action of the inclination, it can adapt to pipelines with different diameters within a certain range, with strong adaptability and capable of realizing the rapid positioning of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 The first perspective schematic diagram of the bearing seat assembly.

[0045] Figure 2 The second perspective schematic diagram of the bearing seat assembly.

[0046] Figure 3 The structural schematic diagram of the bearing seat.

[0047] Figure 4 The first perspective schematic diagram of the connecting strip board assembly.

[0048] Figure 5 The second perspective schematic diagram of the connecting strip board assembly.

[0049] Figure 6 For Figure 5 The enlarged schematic diagram of part A in

[0050] Figure 7 The structural schematic diagram of the control strip.

[0051] Figure 8 The assembly schematic diagram of the detection frame and the perspective protection board.

[0052] Figure 9 The assembly schematic diagram of the perspective protection board, the installation bearing board and the linkage bearing block.

[0053] Figure 10 The structural schematic diagram of the installation bearing board.

[0054] In the figure: 1, bearing seat; 11, equipment main body; 12, display screen; 13, indentation chamber; 14, upper supporting block; 141, supporting through hole; 15, mounting carrier sleeve; 151, chamber connecting hole; 16, supporting carrier bar; 161, limiting through hole; 17, lower supporting block; 18, bearing through hole; 19, supporting connecting block; 2, connecting strip board; 21, moving channel; 22, mounting channel; 23, bearing inner rod; 24, mating supporting rod; 25, rack; 26, first spring; 27, movable supporting block; 270, locking jack; 271, rod mating hole; 28, first driving rod; 3, control strip board; 31, fixed cylinder; 32, moving mating rod; 33, mating block; 34, elastic sheet; 35, positioning cylinder; 4, detection frame; 41, detection probe; 42, threaded carrier rod; 43, gear; 44, supporting block; 45, threaded through hole; 46, bearing; 47, continuous plate strip; 48, continuous rod; 49, continuous frame; 491, second driving rod; 5, perspective protection plate; 51, upper top protection plate; 52, protruding supporting block; 53, supporting mating rod; 54, protruding carrier plate; 55, movable jack; 6, mounting supporting plate; 61, positioning supporting plate; 62, inclined mating plate; 63, movable carrier rod; 64, connecting channel; 7, linkage supporting block; 71, mating movable hole; 72, second spring; 73, linkage bearing bar; 74, linkage channel; 75, channel inserting rod; 76, connecting and linking block; 77, connecting inserting rod. Detailed implementation manner

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] The present invention provides a technical solution:

[0057] Such as Figure 1 And Figure 2As shown in the figure, the equipment for phased array detection of the fillet weld of the pipe socket includes a bearing seat 1. Symmetrically and fixedly arranged on the bearing seat 1 is an equipment main body 11. An indicator screen 12 is installed on the equipment main body 11. At the rear end of the equipment main body 11 is an indentation chamber 13. A mobile detection mechanism is installed in the indentation chamber 13. When the mobile detection mechanism is not performing detection work, it is inserted into the indentation chamber 13, and the indentation chamber 13 plays a role in protecting it. Symmetrically and fixedly arranged at the upper end of the equipment main body 11 are upper supporting blocks 14. A mobile protection component is carried on the upper supporting blocks 14, and the mobile protection component plays a role in protecting the indicator screen 12. A detection driving mechanism is also installed on the bearing seat 1. The detection driving mechanism drives the mobile detection mechanism and the mobile protection component to move to ensure the progress of the detection work. An equipment positioning component is connected to the mobile detection mechanism and the detection driving mechanism. The detection driving mechanism drives the equipment positioning component to move to realize the positioning of the bearing seat 1.

[0058] As Figure 2 , Figure 4 and Figure 5 shown, the detection driving mechanism includes a connecting strip plate 2, a control strip plate 3, and a gear 43. A moving channel 21 is opened on the connecting strip plate 2. Symmetrically arranged on the connecting strip plate 2 on both sides of the moving channel 21 are installation channels 22. A supporting connecting block 19 is fixedly arranged on the rear end face of the bearing seat 1. The connecting strip plate 2 is located at the rear side of the bearing seat 1. A bearing inner rod 23 is fixedly arranged in the installation channel 22.

[0059] As Figure 3 shown, an installation carrier sleeve 15 is fixedly arranged on the equipment main body 11. A chamber connecting hole 151 is opened inside the installation carrier sleeve 15. The chamber connecting hole 151 communicates with the indentation chamber 13. Symmetrically and fixedly arranged on both sides of the bearing seat 1 are supporting carrier strips 16. A limiting through hole 161 is opened on the supporting carrier strips 16. And symmetrically and fixedly arranged at the lower end of the bearing seat 1 are lower supporting blocks 17. A bearing through hole 18 is arranged on the lower supporting blocks 17.

[0060] As Figure 1 and Figure 4 shown, fitting supporting rods 24 are symmetrically and fixedly arranged at both ends of the connecting strip plate 2. A rack 25 is fixedly arranged at the upper end of the fitting supporting rods 24. And a first spring 26 is sleeved on the fitting supporting rods 24. The fitting supporting rods 24 are inserted into the limiting through hole 161. The rack 25 meshes with the gear 43. A supporting block 44 is fixedly arranged on the gear 43. A threaded through hole 45 is opened on the supporting block 44. And a bearing 46 is sleeved on the supporting block 44. The bearing 46 is installed in the installation carrier sleeve 15. Both ends of the first spring 26 are respectively fixed on the supporting carrier strip 16 and the rack 25.

[0061] As Figure 5 , Figure 6 and Figure 7As shown, a movable bearing block 27 is installed in the installation channel 22, and a locking socket 270 is provided at the lower end of the movable bearing block 27, and a rod matching hole 271 is also provided on the movable bearing block 27, and the load-bearing inner rod 23 is inserted in the rod matching hole 271, and a first driving rod 28 is hinged at the upper end of the movable bearing block 27, and the upper end of the first driving rod 28 is hinged on the supporting connecting block 19, and a control strip 3 is installed on the lower side of the connecting strip 2, and fixed columns 31 are symmetrically fixed at both ends of the control strip 3. Before the connecting strip 2 is not moved downward, it is fixed by the fixed columns 31, that is, the fixed columns 31 are inserted in the locking socket 270 to fix the connecting strip 2.

[0062] like Figure 7 As shown, a moving matching rod 32 is fixedly provided in the middle position of the control strip 3, and the moving matching rod 32 is inserted in the moving channel 21. A matching block 33 is fixedly provided at the upper end of the moving matching rod 32, and positioning columns 35 are symmetrically fixedly provided on the control strips 3 on both sides of the moving matching rod 32. The connecting strips are fixed by the positioning columns 35 during the downward movement. An elastic sheet 34 is also fixedly provided on the control strip 3, and the upper end of the elastic sheet 34 is fixed on the connecting strip 2.

[0063] The positioning column 35 is inserted into the locking hole 270 to fix the connecting strip 2.

[0064] like Figure 1 and Figure 8 As shown, the mobile detection mechanism is a detection frame 4, on which a detection probe 41 is fixedly installed, and a threaded carrier rod 42 is also fixedly arranged on the detection frame 4, the threaded carrier rod 42 passes through the chamber connecting hole 151 and is threadedly inserted in the threaded through hole 45, and the thread directions of the threaded carrier rods 42 on the two device bodies 11 are opposite, a serial strip 47 is fixedly arranged on the threaded carrier rod 42, the serial strip 47 is located on the outside of the retracted chamber 13, and a serial rod 48 is fixedly arranged on the lower end of the serial strip 47, the serial rod 48 is inserted in the bearing through hole 18, and a serial frame 49 is fixedly arranged on the serial rod 48, and a second driving rod 491 is hinged on the serial frame 49, and the second driving rod 491 is connected to a mobile protection component.

[0065] like Figure 1 and Figure 8 As shown, the mobile protective component is a perspective protective plate 5, an upper end of the perspective protective plate 5 is fixedly provided with an upper top protective plate 51, and a protruding support block 52 is symmetrically fixedly provided on the upper top protective plate 51, and a supporting matching rod 53 is fixedly provided on the protruding support block 52, and the supporting matching rod 53 is inserted in the supporting through hole 141, and the lower end of the perspective protective plate 5 is hinged to the second driving rod 491, and a protruding carrier plate 54 is also fixedly provided at the lower end of the perspective protective plate 5, and a movable socket 55 is opened on the protruding carrier plate 54.

[0066] likeFigure 1 and Figure 10 As shown, the equipment positioning assembly includes a mounting support plate 6 and a linkage support block 7. The mounting support plate 6 is mounted on the perspective protective plate 5. A positioning support plate 61 is fixedly arranged on the upper end of the mounting support plate 6. The upper and lower ends of the positioning support plate 61 are symmetrically fixedly arranged with oblique matching plates 62. A movable load rod 63 is fixedly arranged on the lower end of the mounting support plate 6. The movable load rod 63 is plugged into the movable socket 55. A connecting channel 64 is provided at the lower end of the mounting support plate 6. The connecting channel 64 is connected to the linkage support block 7. The linkage support block 7 is plugged into the mounting channel 22. The linkage support block 7 is provided with a matching movable The movable hole 71 cooperates with the movable hole 71 to insert the load-bearing inner rod 23, and the load-bearing inner rod 23 is sleeved with a second spring 72, and the two ends of the second spring 72 are respectively fixed on the inner end surface of the installation channel 22 and the linkage bearing block 7, a linkage bearing strip 73 is fixedly provided on the linkage bearing block 7, a linkage channel 74 is opened on the linkage bearing strip 73, a channel plug rod 75 is inserted in the linkage channel 74, a connecting block 76 is fixedly provided on the channel plug rod 75, a connecting plug rod 77 is fixedly provided on the connecting block 76, and the connecting plug rod 77 is inserted in the connecting channel 64.

[0067] A phased array detection method for a pipe socket fillet weld comprises the following steps:

[0068] Step 1: Moving the detection frame 4 outward: Pull the connecting strip 2 downward to drive the detection frame 4 to move outward, so that the detection probe 41 surrounds the periphery of the weld;

[0069] Step 2: Moving away from the perspective protection plate 5: As the detection frame 4 moves outward, it will drive the perspective protection plate 5 to move away from the device body 11, making it easier for the staff to operate the device body 11;

[0070] Step 3: Positioning of the bearing seat 1: As the connecting strip 2 moves downward, it will also drive the mounting support plate 6 to move toward each other, so that the oblique matching plate 62 contacts the pipe to clamp the pipe, thereby positioning and fixing the bearing seat 1 on the pipe;

[0071] Step 4: Weld seam detection: The weld seam is detected by the detection probe 41 .

[0072] When detecting a weld seam, place the weld seam between two device bodies 11, and then push the mating block 33 downward so that it contacts the connecting strip 2. At this time, the fixed cylinder 31 is no longer inserted into the locking jack 270, making the connecting strip 2 in an unlocked state. Then pull the connecting strip 2 downward. Under the action of the first driving rod 28, it will drive two movable bearing blocks 27 to move towards each other. At the same time, under the action of the rack 25, it will drive the gear 43 to rotate. As the gear 43 rotates, under the action of the thread, it will drive the threaded carrier rod 42 to move, thereby driving the detection frame 4 out of the retraction chamber 13, so that the detection probe 41 surrounds the weld seam. During detection, it can be detected comprehensively. The movement of the detection frame 4 will drive the perspective protection plate 5 to move away from the device body 11 under the action of the second driving rod 491. In this way, space for operating the device body 11 can be left, and continuous protection can also be achieved for it. At the same time, under the drive of the perspective protection plate 5, the mounting support plate 6 is also moved away from the device body 11, which is convenient for its fixing operation and also convenient for the working operation of the device body 11. As the connecting strip 2 moves downward, the rack 25 will no longer mesh with the gear 43. At this time, the movable bearing block 27 will contact the linkage bearing block 7. In this way, as the connecting strip 2 continues to move downward, the movable bearing block 27 will drive the linkage bearing block 7 to move, and then under the action of the linkage bearing block 7, it will drive the mounting support plate 6 to move towards each other so that the inclined mating plate 62 contacts the pipeline. In this way, under the action of the inclined mating plate 62, the pipeline can be clamped, thereby realizing the fixation of the device, and it can adapt to pipelines with different diameters for fixation. After clamping the pipeline, release the control strip 3 so that it resets under the action of the elastic piece 34, and insert the positioning cylinder 35 into the locking jack 270. The operation is simple, convenient and fast.

[0073] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for phased array detection of pipe socket fillet welds, comprising a bearing seat, on which a device body is symmetrically fixed, characterized in that: A display screen is installed on the device body, a retracted chamber is provided at the rear end of the device body, and a mobile detection mechanism is installed in the retracted chamber; The mobile detection mechanism is inserted into the retracted chamber when not performing detection work. The mobile detection mechanism is a detection frame, on which a detection probe is fixedly installed, and a threaded carrier rod is also fixedly arranged on the detection frame, which is protected by the retracted chamber; An upper support block is symmetrically fixedly arranged at the upper end of the device body, and a movable protection component is carried on the upper support block. The movable protection component is a perspective protection plate, and an upper guard plate is fixedly arranged on the upper end of the perspective protection plate. Protruding support blocks are symmetrically fixedly arranged on the upper guard plate, and the display screen is protected by the movable protection component; The bearing seat is also equipped with a detection drive mechanism, which includes a connecting strip, a control strip and a gear. A moving channel is provided on the connecting strip, and installation channels are symmetrically provided on the connecting strips on both sides of the moving channel. The detection drive mechanism drives the mobile detection mechanism and the mobile protection component to move to ensure the detection work is carried out; The mobile detection mechanism and the detection drive mechanism are connected with an equipment positioning assembly, and the equipment positioning assembly includes an installation support plate and a linkage support block. The installation support plate is installed on the perspective protective plate, and a positioning support plate is fixedly provided on the upper end of the installation support plate. The upper and lower ends of the positioning support plate are symmetrically fixed with oblique matching plates. The detection drive mechanism drives the equipment positioning assembly to move to realize the positioning of the bearing seat.

2. The device for phased array detection of pipe base fillet welds according to claim 1 is characterized in that: A supporting connecting block is fixedly arranged on the rear end surface of the bearing seat, the connecting strip plate is located at the rear side of the bearing seat, and a bearing inner rod is fixedly arranged in the installation channel.

3. The device for phased array detection of pipe socket fillet welds according to claim 2 is characterized in that: A mounting sleeve is fixedly arranged on the equipment body, a chamber connecting hole is opened inside the mounting sleeve, and the chamber connecting hole is connected with the retracted chamber; Support bars are symmetrically fixedly arranged on both sides of the bearing seat, and limiting through holes are opened on the support bars. A lower bearing block is also symmetrically fixedly arranged on the lower end of the bearing seat, and a bearing through hole is arranged on the lower bearing block.

4. The device for phased array detection of pipe base fillet welds according to claim 3 is characterized in that: The two ends of the connecting strip are symmetrically fixed with matching rods, the upper end of the matching rod is fixed with a rack, and the matching rod is sleeved with a first spring; The matching support rod is inserted into the restricted through hole; The rack is meshed with a gear, a support block is fixedly arranged on the gear, a threaded through hole is opened on the support block, and a bearing is sleeved on the support block; The bearing is mounted in a mounting sleeve.

5. The device for phased array detection of pipe base fillet welds according to claim 4, characterized in that: A movable bearing block is installed in the installation channel, a locking plug hole is provided at the lower end of the movable bearing block, and a rod matching hole is also provided on the movable bearing block, and a load-bearing inner rod is inserted into the rod matching hole; The upper end of the movable bearing block is hinged with a first driving rod, and the upper end of the first driving rod is hinged on the supporting connecting block; A control strip is installed on the lower side of the connecting strip, and fixing columns are symmetrically fixed at both ends of the control strip. Before the connecting strip is moved downward, it is fixed by the fixing columns.

6. The device for phased array detection of pipe socket fillet welds according to claim 5, characterized in that: A moving matching rod is fixedly arranged at the middle position of the control strip, and the moving matching rod is inserted into the moving channel; A matching block is fixedly arranged at the upper end of the movable matching rod, and positioning columns are symmetrically fixedly arranged on the control strips on both sides of the movable matching rod, and the connecting strips are fixed by the positioning columns during the downward movement; An elastic sheet is also fixedly arranged on the control strip, and the upper end of the elastic sheet is fixed on the connecting strip.

7. The device for phased array detection of pipe base fillet welds according to claim 6, characterized in that: The threaded carrier rod passes through the chamber connecting hole and is threadedly inserted into the threaded through hole, and the thread directions of the threaded carrier rods on the two device bodies are opposite; A serial strip is fixedly arranged on the threaded carrier rod, the serial strip is located outside the retracted chamber, and a serial rod is fixedly arranged at the lower end of the serial strip, the serial rod is inserted into the bearing through hole, and a serial rack is fixedly arranged on the serial rod; A second driving rod is hinged on the serial frame, and the second driving rod is connected to a movable protection component.

8. The device for phased array detection of pipe socket fillet welds according to claim 7, characterized in that: A support matching rod is fixedly provided on the protruding bearing block, and the support matching rod is inserted into the support through hole; The lower end of the perspective protection plate is hinged to the second driving rod, and a protruding carrier plate is fixedly arranged at the lower end of the perspective protection plate, and a movable plug hole is opened on the protruding carrier plate.

9. The device for phased array detection of pipe socket fillet welds according to claim 8, characterized in that: A movable carrying rod is fixedly arranged at the lower end of the mounting support plate, the movable carrying rod is inserted into the movable insertion hole, and a connecting channel is opened at the lower end of the mounting support plate, and the connecting channel is connected to a linkage support block; The linkage bearing block is inserted in the installation channel, a matching movable hole is provided on the linkage bearing block, a load-bearing inner rod is inserted in the matching movable hole, and a second spring is sleeved on the load-bearing inner rod; A linkage bearing bar is fixedly arranged on the linkage bearing block, a linkage channel is opened on the linkage bearing bar, a channel plug rod is inserted in the linkage channel, a connecting block is fixedly arranged on the channel plug rod, a connecting plug rod is fixedly arranged on the connecting block, and the connecting plug rod is inserted in the connecting channel.

10. A phased array detection method for pipe base fillet welds, characterized in that: The detection method is applicable to the phased array detection device according to any one of claims 1 to 9, comprising the following steps: Step 1: Move the detection frame outward: Pull down the connecting strip to drive the detection frame to move outward, so that the detection probe surrounds the periphery of the weld; Step 2: Move the perspective protective plate away from the main body of the equipment, so that the staff can operate the main body of the equipment more conveniently. Step 3: Positioning of the bearing seat: As the connecting strip moves downward, it will also drive the mounting support plate to move toward each other, so that the oblique matching plate contacts the pipe to clamp the pipe, and then the bearing seat is positioned and fixed on the pipe; Step 4: Weld detection: Detect the weld using a detection probe.

Images