A kind of pressure pipeline circumferential weld ultrasonic flaw detection equipment

Abstract

The utility model belongs to pressure pipeline circumferential weld ultrasonic flaw detection field, concretely relates to a kind of pressure pipeline circumferential weld ultrasonic flaw detection equipment, including fixing frame, the inside of the fixing frame is provided with detection head;When the weld of pipeline needs to be detected, the user installs mounting rack to the periphery of the pipe to be detected, then servo motor is started, servo motor drives second helical gear to rotate, second helical gear drives first helical gear to rotate, first helical gear drives metal rod to rotate, metal rod drives fixing frame to adjust angle, so that fixing frame can overturn, fixing frame is clamped on the surface of the pipe to be detected, then the position of detection head is adjusted, according to the position of the need detection, user can rotate screw rod, screw rod rotation drives lifting frame to move, lifting frame drives detection head to move, detection head can be moved to appropriate height, to detect, to reach the effect of high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic flaw detection technology for circumferential welds of pressure pipelines, specifically to an ultrasonic flaw detection device for circumferential welds of pressure pipelines. Background Technology

[0002] Ultrasonic testing of circumferential welds in pressure pipelines is a technique that utilizes the physical properties of ultrasonic waves in materials, such as propagation, reflection, and attenuation, to non-destructively detect internal defects in the circumferential welds of pressure pipelines. The principle is to emit high-frequency ultrasonic waves (typically 0.5~10MHz) into the weld through a probe. When the ultrasonic waves encounter defects such as cracks, pores, or lack of fusion in the weld, they will be reflected. The reflected waves are received and converted into electrical signals. By analyzing the time delay, amplitude changes, and other characteristics of the signals, the location, size, and nature of the defects can be determined.

[0003] In current ultrasonic testing of circumferential welds in pressure pipelines, the ultrasonic testing equipment needs to be placed on the pipeline. However, the detection head cannot adjust the detection spacing, which easily leads to poor penetration and makes it difficult to perform accurate and efficient testing, making it inconvenient for users.

[0004] Therefore, it is necessary to provide an ultrasonic flaw detection device for circumferential welds of pressure pipelines to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an ultrasonic flaw detection device for circumferential welds of pressure pipelines. This device solves the problem that in the current ultrasonic flaw detection process for circumferential welds of pressure pipelines, the ultrasonic flaw detection device needs to be placed on the pipeline, but the detection probe cannot adjust the detection spacing, which easily leads to poor detection penetration effect, inaccurate and inefficient detection, and inconvenience for users.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic flaw detection device for circumferential welds of pressure pipelines, including a fixed frame, a detection head is provided inside the fixed frame, an adjustment component is provided outside the detection head, a metal rod is fixedly connected to the right end of the fixed frame, a mounting frame is rotatably connected to the outside of the metal rod, and a rotating component is fixedly connected to the front of the mounting frame. The adjustment component is used to adjust the position of the detection head; The rotating component is used to adjust the angle of the fixing frame.

[0007] Preferably, the adjustment assembly includes a lifting frame, which is fixedly connected to the surface of the detection head. A metal frame is fixedly connected to the top of the lifting frame, and a screw is threadedly connected to the inside of the metal frame. The bottom of the screw is rotatably connected to the top of the lifting frame.

[0008] Preferably, the rotating assembly includes a first helical gear connected to the surface of a metal rod, a servo motor is fixedly connected to the front side of the mounting bracket, and a second helical gear is fixedly connected to the output shaft of the servo motor, the second helical gear meshing with the first helical gear.

[0009] Preferably, a protective cover is fixedly mounted on the front of the mounting bracket, and the protective cover is located on the front of the servo motor.

[0010] Preferably, both sides of the inner wall of the mounting frame are fixedly connected to limit plates, and positioning wheels are fixedly connected to the inner side of the limit plates.

[0011] Preferably, a sliding rod is fixedly connected to the right side of the top of the lifting frame, and the sliding rod is slidably connected to the metal frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows the user to perform flaw detection on the weld seams of a pipeline. The user installs a mounting bracket around the pipeline to be inspected, then starts a servo motor. The servo motor drives a second helical gear to rotate, which in turn drives a first helical gear to rotate. The first helical gear then drives a metal rod to rotate, which in turn adjusts the angle of a fixing bracket, allowing it to flip and lock onto the surface of the pipeline. The user then adjusts the position of the inspection head. To determine the desired inspection location, the user rotates a screw, which moves a lifting frame. This lifting frame then moves the inspection head to a suitable height for inspection, achieving high efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 3 This is a three-dimensional bottom view of the structure of this utility model; Figure 4 The structure of this utility model Figure 2 Enlarged diagram of point A in the middle.

[0014] In the diagram: 1. Fixed frame; 2. Detection head; 3. Adjustment component; 31. Lifting frame; 32. Metal frame; 33. Screw; 4. Metal rod; 5. Mounting frame; 6. Rotating component; 61. First helical gear; 62. Servo motor; 63. Second helical gear; 7. Protective cover; 8. Limiting plate; 9. Positioning wheel; 10. Slide rod. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 An ultrasonic flaw detection device for circumferential welds of pressure pipelines includes a fixed frame 1, a detection head 2 is arranged inside the fixed frame 1, an adjustment component 3 is arranged outside the detection head 2, a metal rod 4 is fixedly connected to the right end of the fixed frame 1, a mounting frame 5 is rotatably connected to the outside of the metal rod 4, and a rotating component 6 is fixedly connected to the front of the mounting frame 5. Adjustment component 3 is used to adjust the position of detection head 2; The rotating component 6 is used to adjust the angle of the fixed frame 1.

[0017] Please see Figure 4 The adjustment component 3 includes a lifting frame 31, which is fixedly connected to the surface of the detection head 2. A metal frame 32 is fixedly connected to the top of the lifting frame 31. A screw 33 is threadedly connected to the inside of the metal frame 32. The bottom of the screw 33 is rotatably connected to the top of the lifting frame 31.

[0018] Furthermore, by adjusting the settings of component 3, the specific position of the detection head 2 can be precisely controlled, enabling it to move up and down. This design not only ensures that the stability of the detection head 2 reaches an excellent level, but also greatly improves the convenience and comfort of the user during operation, thereby effectively improving work efficiency.

[0019] Please see Figure 2 The rotating assembly 6 includes a first helical gear 61, which is connected to the surface of the metal rod 4. A servo motor 62 is fixedly connected to the front of the mounting bracket 5. A second helical gear 63 is fixedly connected to the output shaft of the servo motor 62, and the second helical gear 63 meshes with the first helical gear 61.

[0020] Furthermore, the rotating component 6 enables smooth transmission of the metal rod 4, thereby flexibly adjusting the angle of the fixed frame 1. This adjustment mechanism is not only highly efficient but also easy to operate, allowing users to quickly complete the adjustment work and ensuring that the equipment can perform at its best in various application scenarios.

[0021] Please see Figure 3 A protective cover 7 is fixedly installed on the front of the mounting bracket 5, and the protective cover 7 is located on the front of the servo motor 62.

[0022] Furthermore, the protective cover 7 can fully cover the front area of ​​the mounting bracket 5, thereby effectively preventing external factors from interfering with and damaging the servo motor 62. This protective measure not only significantly improves the safety performance of the servo motor 62, but also further enhances the user's confidence and convenience in operation.

[0023] Please see Figure 2 Both sides of the inner wall of the mounting bracket 5 are fixedly connected to limit plates 8, and the inner side of the limit plates 8 is fixedly connected to positioning wheels 9.

[0024] Furthermore, the setting of the limiting plate 8 can provide a stable support for the positioning wheel 9. This support mechanism is not only highly efficient, but also ensures that the pipeline can slide smoothly during the inspection process, avoiding inspection interruptions or other problems caused by insufficient support, thereby ensuring the continuity and accuracy of the inspection work.

[0025] Please see Figure 4 A slide rod 10 is fixedly connected to the right side of the top of the lifting frame 31, and the slide rod 10 is slidably connected to the metal frame 32.

[0026] Furthermore, by setting the position of the slide bar 10, the lifting frame 31 can be effectively limited and controlled. This limiting design not only ensures the stability of the lifting frame 31 during operation, but also effectively avoids unstable phenomena such as shaking of the fixed frame 1, making it safer and more convenient for users to use, and improving the overall reliability of the equipment and user experience.

[0027] The specific implementation process of this utility model is as follows: When it is necessary to perform flaw detection on the weld seam of a pipeline, the operator first needs to securely install the special mounting bracket 5 around the pipeline to be inspected, ensuring that the mounting bracket 5 is tightly fitted to the pipeline. After installation, the operator immediately starts the servo motor 62. After receiving the start command, the servo motor 62 starts running and drives the second helical gear 63 connected to it to rotate. The rotation of the second helical gear 63 further transmits power, driving the first helical gear 61 meshing with it to also start rotating. The rotation of the first helical gear 61 is transmitted to the metal rod 4 through a mechanical transmission device, causing the metal rod 4 to rotate accordingly. The rotation of the metal rod 4 then drives the fixed bracket 1 to adjust its angle, allowing the fixed bracket 1 to be flipped as needed. After the fixing frame 1 is flipped, a specific part of it will be locked onto the surface of the pipeline to be inspected, ensuring the stable fixation of the flaw detection equipment. Next, the operator needs to precisely adjust the position of the detection head 2 according to the actual inspection requirements. To achieve this goal, the operator can manually rotate the screw 33. The rotation of the screw 33 drives the lifting frame 31 to move up and down through the mechanical transmission mechanism. The movement of the lifting frame 31 directly affects the position of the detection head 2, enabling the detection head 2 to be accurately positioned in the vertical direction and moved to the most suitable height for flaw detection. Through this series of precise adjustments and positioning operations, the detection head 2 can finally reach the ideal position to perform efficient and accurate flaw detection on the pipeline weld, thereby ensuring the efficiency of the inspection process and the reliability of the inspection results.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for ultrasonic inspection of circumferential welds of a pressure pipe, characterized by: Includes a fixed frame (1), inside which a detection head (2) is provided, and outside the detection head (2) an adjustment component (3) is provided. A metal rod (4) is fixedly connected to the right end of the fixed frame (1), and a mounting frame (5) is rotatably connected to the outside of the metal rod (4). A rotating component (6) is fixedly connected to the front of the mounting frame (5). The adjustment component (3) is used to adjust the position of the detection head (2); The rotating component (6) is used to adjust the angle of the fixing frame (1).

2. The apparatus for detecting circumferential weld of a pressure pipe according to claim 1, wherein: The adjustment assembly (3) includes a lifting frame (31), which is fixedly connected to the surface of the detection head (2). A metal frame (32) is fixedly connected to the top of the lifting frame (31). A screw (33) is threadedly connected to the inside of the metal frame (32). The bottom of the screw (33) is rotatably connected to the top of the lifting frame (31).

3. The apparatus for detecting circumferential weld of a pressure pipe according to claim 1, wherein: The rotating assembly (6) includes a first helical gear (61) connected to the surface of the metal rod (4). A servo motor (62) is fixedly connected to the front of the mounting bracket (5). A second helical gear (63) is fixedly connected to the output shaft of the servo motor (62). The second helical gear (63) meshes with the first helical gear (61).

4. The apparatus for detecting circumferential weld of a pressure pipe according to claim 3, wherein: A protective cover (7) is fixedly installed on the front of the mounting bracket (5), and the protective cover (7) is located on the front of the servo motor (62).

5. The apparatus for detecting circumferential welds of a penstock according to claim 1, wherein: Both sides of the inner wall of the mounting bracket (5) are fixedly connected to a limiting plate (8), and a positioning wheel (9) is fixedly connected to the inner side of the limiting plate (8).

6. The apparatus for detecting circumferential weld of a pressure pipe according to claim 2, wherein: A slide rod (10) is fixedly connected to the right side of the top of the lifting frame (31), and the slide rod (10) is slidably connected to the metal frame (32).

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