A phased array ultrasound scanning frame

Abstract

The utility model relates to phased array ultrasonic detection technical field, specifically disclose a kind of phased array ultrasonic scanning frame, including the support seat of being sleeved in the outside of pipeline, support seat includes the first snap ring and second snap ring of semicircular of greater diameter than pipeline, the end of first snap ring and second snap ring is detachably connected, the side wall of first snap ring and second snap ring is connected with the compacting mechanism of compacting pipeline lateral wall, the upper end of first snap ring and second snap ring is connected with the scale that can slide, scale is used to measure the distance between the lateral wall of pipeline and the inner wall of support seat, the lower end of first snap ring and second snap ring is connected with semicircular track, and two semicircular tracks butt joint and form circular track, track is connected with the roundabout mechanism of fixed probe;The utility model fundamentally avoids the problem that flexible chain is inclined, twisted under the action of tensile force, gravity, significantly improves the accuracy of detection position coordinate, especially significantly improves the position accuracy when large pipe diameter is detected.

Description

Technical Field

[0001] This utility model relates to the field of phased array ultrasonic testing technology, specifically a phased array ultrasonic scanning frame. Background Technology

[0002] Phased arrays are an advanced array technology that controls beam direction electronically and is widely used in radar, communications, electronic warfare, and other fields. Its core principle is to achieve rapid beam scanning, focusing, or multi-beamforming by adjusting the phase and amplitude of each radiating element in the array, without requiring mechanical antenna rotation.

[0003] Currently, most phased array ultrasonic testing scanning frames are chain-type structures. For example, patent CN220063942U discloses a phased array ultrasonic testing scanning frame in which the chain-type scanning frame is placed on the outside of the pipe. When in use, the chain-type scanning frame and the probe rotate together around the pipe.

[0004] The biggest problem with this type of chain scanning frame is that the flexible chain will tilt and twist under tension and gravity during rotation, causing the probe position to shift away from the weld as it rotates, affecting the accuracy of the detection position; moreover, the larger the pipe diameter, the greater the probe offset will be. Utility Model Content

[0005] This invention addresses the aforementioned shortcomings of existing technologies by providing a phased array ultrasonic scanning frame. It fundamentally avoids the problem of flexible chains tilting or twisting under tension and gravity; it significantly improves the accuracy of detection position coordinates and solves the problem of positional deviation during probe rotation, especially significantly improving the positional accuracy when detecting large-diameter pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A phased array ultrasonic scanning frame includes a support base fitted around a pipe. The support base includes a first retaining ring and a second retaining ring with a semicircular diameter larger than that of the pipe. The ends of the first retaining ring and the second retaining ring are detachably connected. A clamping mechanism for pressing against the outer wall of the pipe is connected to the side wall of the first retaining ring and the second retaining ring. A sliding scale is connected to the upper end of the first retaining ring and the second retaining ring. The scale is used to measure the distance between the side wall of the pipe and the inner wall of the support base. The lower end of the first retaining ring and the second retaining ring are both connected to a semicircular track. The two semicircular tracks are joined together to form a circular track. A winding mechanism for fixing the probe is connected to the track.

[0008] Preferably, the first retaining ring has a first positioning block at both ends, and the first positioning block has a positioning hole. The second retaining ring has a second positioning block at both ends, and the second positioning block is connected to a positioning stud that mates with the positioning hole. The positioning stud tightens and fixes the first positioning block and the second positioning block by a locking nut.

[0009] Preferably, the upper ends of the first retaining ring and the second retaining ring are provided with a first guide sleeve, the scale is slidably engaged with the first guide sleeve, and the upper end of the first guide sleeve is provided with a first positioning bolt for fixing the scale.

[0010] Preferably, the clamping mechanism includes a clamping block, one side of which is provided with a V-groove that mates with the pipe, and the other side of which is connected to a second screw and a second guide rod that mates with the support base. The end of the second screw is provided with a second throttle.

[0011] Preferably, both the first and second retaining rings are provided with at least two clamping mechanisms.

[0012] Preferably, the detour mechanism includes a slider, the upper end of which is provided with a groove that cooperates with the guide rail, the lower end of which is connected to a support block, the inner side of which is connected to a front-to-back adjustable fixing box, the probe being located inside the fixing box, the lower end of which is connected to a slidable support rod, the end of which is provided with a support wheel that cooperates with the side wall of the pipe, and a handle connecting the slider and the support block.

[0013] Preferably, the side wall of the fixing box is provided with clamping bolts for fixing the probe.

[0014] Preferably, the side wall of the fixing box is connected to a first screw and a first guide rod that cooperate with the support block, and the end of the first screw is provided with a first throttle.

[0015] Preferably, the lower end of the support block is provided with a second guide sleeve, the support rod is slidably engaged with the second guide sleeve, and a second positioning bolt for fixing the support rod is connected to the second guide sleeve.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a rigid ring track as the reference for probe movement, which fundamentally avoids the problem of tilting and twisting of flexible chains under tension and gravity. The probe runs under the guidance of the support base, and the movement trajectory is strictly limited to the set circumference. The position of the probe relative to the weld seam remains highly consistent during the scanning process, which significantly improves the accuracy of the detection position coordinates and solves the problem of position offset during probe rotation. In particular, it significantly improves the position accuracy when detecting large-diameter pipes.

[0018] 2. This utility model achieves concentric assembly of the support base, guide rail and pipeline through the cooperation of the scale and the clamping mechanism, ensuring that the probe can fit the pipeline for detection; the installation is stable and not easy to loosen, and after disassembly and reinstallation in the same position, it can maintain a high degree of consistency, which is convenient for re-inspection.

[0019] 3. This utility model achieves compatibility with pipes of different diameters through an adjustable scale, a clamping mechanism, a fixing box, and support wheels, thereby increasing its versatility.

[0020] 4. This utility model allows for easy manual driving of the slider along the track for smooth circumferential scanning via a handle. The scanning process is smooth and stable, which helps to obtain high-quality, continuous ultrasonic data and improves detection efficiency and data reliability. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention in use;

[0022] Figure 2 This is a front view of the present invention in use;

[0023] Figure 3 This is a top view of the present invention in use;

[0024] Figure 4 This is a schematic diagram of the first retaining ring;

[0025] Figure 5 This is a schematic diagram of the second retaining ring;

[0026] Figure 6 This is a schematic diagram of the clamping mechanism;

[0027] Figure 7 Schematic diagram of the bypass mechanism Figure 1 ;

[0028] Figure 8 Schematic diagram of the bypass mechanism Figure 2 ;

[0029] In the diagram: 1-Support base; 101-First retaining ring; 102-Second retaining ring; 103-First positioning bolt; 104-First guide sleeve; 105-Guide rail; 106-First positioning block; 107-Positioning hole; 108-Second positioning block; 109-Positioning stud; 110-Locking nut; 2-Circuiting mechanism; 201-Handle; 202-Slider; 203-Slide groove; 204-Fixing box; 205-Pressure bolt; 206-Support wheel; 207-Support rod; 208-Second guide sleeve; 209-Second positioning bolt; 210-First guide rod; 211-Support block; 212-First throttle; 213-First screw; 3-Pressure mechanism; 301-Clamping block; 302-V-groove; 303-Second guide rod; 304-Second screw; 305-Second throttle; 4-Scale; 5-Pipe; 6-Probe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figure 1 , Figure 2 As shown, a phased array ultrasonic scanning frame includes a support base 1 that fits around a pipe 5. The support base 1 includes a first retaining ring 101 and a second retaining ring 102, both of which are semicircular in diameter larger than that of the pipe 5. The ends of the first retaining ring 101 and the second retaining ring 102 are detachably connected to facilitate mating with the pipe 5. A clamping mechanism 3 for clamping the outer wall of the pipe 5 is connected to the side walls of the first retaining ring 101 and the second retaining ring 102. Figure 3 As shown, the clamping mechanism 3 fixes the support base 1 to the outside of the pipe 5. The upper ends of the first retaining ring 101 and the second retaining ring 102 are connected to a sliding scale 4. The scale 4 is used to measure the distance between the side wall of the pipe 5 and the inner wall of the support base 1. The scale 4 ensures that the support base 1 and the pipe 5 are arranged concentrically. The lower ends of the first retaining ring 101 and the second retaining ring 102 are both connected to a semi-circular track. The two semi-circular tracks are joined together to form a circular track. The track is connected to a winding mechanism 2 for fixing the probe 6. During use, the support base 1 and the pipe 5 remain fixed, and the winding mechanism 2 moves around the circumference of the guide rail 105, thereby ensuring that the probe 6 will not shift position during the detection process.

[0032] like Figure 4 , Figure 5As shown, the first retaining ring 101 has first positioning blocks 106 at both ends, and positioning holes 107 on the first positioning blocks 106. The second retaining ring 102 has second positioning blocks 108 at both ends, and positioning studs that mate with the positioning holes 107 are connected to the second positioning blocks 108. The positioning studs tighten and fix the first positioning blocks 106 and the second positioning blocks 108 by locking nuts 110. The connection and fixation of the first retaining ring 101 and the second retaining ring 102 are achieved by two locking bolts. Through the cooperation of the first positioning blocks 106 and the second positioning blocks 108, it can be ensured that the ends of the first retaining ring 101 and the second retaining ring 102 and the ends of the two guide rails 105 are aligned flat.

[0033] The upper ends of the first retaining ring 101 and the second retaining ring 102 are provided with a first guide sleeve 104. The scale 4 is slidably engaged with the first guide sleeve 104. The upper end of the first guide sleeve 104 is provided with a first positioning bolt 109103 for fixing the scale 4. By observing the scale corresponding to any end of the first guide sleeve 104, one end of the scale 4 is pressed against the side wall of the pipe 5. After the support base 1 is fixed, the scale corresponding to the end of the first guide sleeve 104 is the same. At this time, it indicates that the support base 1 and the pipe 5 are concentrically set.

[0034] like Figure 6 As shown, the clamping mechanism 3 includes a clamping block 301. One side of the clamping block 301 is provided with a V-groove 302 that mates with the pipe 5. The V-groove 302 can mate with pipes 5 of different diameters and improve the stability of the mating. The other side of the clamping block 301 is connected to a second screw 304 and a second guide rod 303 that mate with the support base 1 (first retaining ring 101 and second retaining ring 102). The end of the second screw 304 is provided with a second throttle 305. The second screw 304 is rotatably connected to the clamping block 301. The second screw 304 and the support base 1 (first retaining ring 101 and second retaining ring 102) are threadedly engaged. The second guide rod 303 passes through the support base 1 and is slidably engaged to prevent the clamping block 301 from rotating. By rotating the second screw 304, the clamping block 301 can be moved back and forth to clamp the pipe 5.

[0035] At least two clamping mechanisms 3 are provided on both the first retaining ring 101 and the second retaining ring 102, and the clamping mechanisms 3 are evenly arranged along the circumference to ensure the firmness and stability of the support base 1.

[0036] like Figure 7 , Figure 8As shown, the bypass mechanism 2 includes a slider 202. The upper end of the slider 202 is provided with a groove 203 that cooperates with the guide rail 105. The lower end of the slider 202 is connected to a support block 211. The inner side of the support block 211 is connected to a front-to-back adjustable fixing box 204. The probe 6 is located inside the fixing box 204. The lower end of the support block 211 is connected to a slidable support rod 207. The end of the support rod 207 is provided with a support wheel 206 that cooperates with the side wall of the pipe 5. A handle 201 is connected between the slider 202 and the support block 211. The bypass mechanism 2 can be pushed to slide along the guide rail 105 through the handle 201 to realize the circumferential detection around the pipe 5.

[0037] The side wall of the fixing box 204 is provided with a clamping bolt 205 for fixing the probe 6. The rear side of the fixing box 204 is rotatably connected with a first screw 213 and a first guide rod 210 that cooperate with the support block 211. The first screw 213 is threadedly engaged with the support block 211, and the first guide rod 210 passes through the support block 211 and is slidably engaged to guide the fixing box 204 and prevent it from rotating. The end of the first screw 213 is provided with a first handle 212. By rotating the first screw 213 through the first handle 212, the front and rear positions of the probe 6 inside the fixing box 204 can be adjusted.

[0038] The lower end of the support block 211 is provided with a second guide sleeve 208. The support rod 207 is slidably engaged with the second guide sleeve 208. The second guide sleeve 208 is connected with a second positioning bolt 209109 that fixes the support rod 207. By adjusting the support rod 207, the support wheel 206 is pressed against the side wall of the pipe 5 to ensure the stability of the movement of the bypass mechanism 2.

[0039] In use, after aligning the bypass mechanism 2 with the guide rail 105, the first retaining ring 101 and the second retaining ring 102 are fitted onto the outside of the pipe 5 and connected and fixed. The clamping mechanism 3 is adjusted with the scale 4 to fix the support base 1 to the pipe 5, ensuring that the center line of the support base 1 coincides with the center line of the pipe 5. The position of the support wheel 206 is adjusted so that the support wheel 206 presses against the side wall of the pipe 5. The probe 6 is installed in the fixing box 204 and fixed. The position of the fixing box 204 is adjusted so that the probe 6 is attached to the side wall of the pipe 5. The bypass mechanism 2 is pushed by the handle 201 to drive the probe 6 to move around the circumference of the pipe 5 for detection.

[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A phased array ultrasonic scanning frame, comprising a support base fitted over the outside of a pipe, characterized in that: The support base includes a first retaining ring and a second retaining ring with a semicircular diameter larger than that of the pipe. The ends of the first retaining ring and the second retaining ring are detachably connected. A clamping mechanism for clamping the outer wall of the pipe is connected to the side wall of the first retaining ring and the second retaining ring. A sliding scale is connected to the upper end of the first retaining ring and the second retaining ring. The scale is used to measure the distance between the side wall of the pipe and the inner wall of the support base. The lower end of the first retaining ring and the second retaining ring are both connected to a semicircular track. The two semicircular tracks are joined together to form a circular track. A winding mechanism for fixing a probe is connected to the track.

2. The phased array ultrasonic scanning frame as described in claim 1, characterized in that: The first retaining ring has a first positioning block at both ends, and the first positioning block has a positioning hole. The second retaining ring has a second positioning block at both ends, and the second positioning block is connected to a positioning stud that mates with the positioning hole. The positioning stud tightens and fixes the first positioning block and the second positioning block by a locking nut.

3. The phased array ultrasonic scanning frame as described in claim 1, characterized in that: The upper ends of the first retaining ring and the second retaining ring are provided with a first guide sleeve, the scale is slidably engaged with the first guide sleeve, and the upper end of the first guide sleeve is provided with a first positioning bolt for fixing the scale.

4. The phased array ultrasonic scanning frame as described in claim 1, characterized in that: The clamping mechanism includes a clamping block, one side of which is provided with a V-groove that mates with the pipe, and the other side of which is connected to a second screw and a second guide rod that mates with the support base. The end of the second screw is provided with a second throttle.

5. The phased array ultrasonic scanning frame as described in claim 1, characterized in that: Both the first and second retaining rings are provided with at least two clamping mechanisms.

6. The phased array ultrasonic scanning frame as described in claim 1, characterized in that: The detour mechanism includes a slider, the upper end of which is provided with a groove that cooperates with the guide rail, the lower end of which is connected to a support block, the inner side of which is connected to a front and rear adjustable fixing box, the probe being located inside the fixing box, the lower end of which is connected to a slidable support rod, the end of which is provided with a support wheel that cooperates with the side wall of the pipe, and a handle connecting the slider and the support block.

7. The phased array ultrasonic scanning frame as described in claim 6, characterized in that: The side wall of the fixing box is equipped with clamping bolts for fixing the probe.

8. A phased array ultrasonic scanning frame as described in claim 6, characterized in that: The side wall of the fixing box is connected to a first screw and a first guide rod that cooperate with the support block, and the end of the first screw is provided with a first throttle.

9. A phased array ultrasonic scanning frame as described in claim 6, characterized in that: The lower end of the support block is provided with a second guide sleeve, the support rod is slidably engaged with the second guide sleeve, and a second positioning bolt for fixing the support rod is connected to the second guide sleeve.

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