A combined ultrasonic and eddy current flaw detection device for seamless steel pipes

Abstract

This utility model relates to the field of seamless steel pipe flaw detection technology, specifically to an ultrasonic eddy current combined flaw detection device for seamless steel pipes, including a support platform, a worktable, a movable groove, an electric push rod, a push rod, and a movable platform. In this ultrasonic eddy current combined flaw detection device for seamless steel pipes, the seamless steel pipe to be tested is conveyed into the conveying groove, and several conveying rollers rotate to smoothly move the steel pipe to the detection area. When the steel pipe reaches the designated position, the electric push rod in the movable groove of one side of the worktable is activated, driving the movable platform to move within the groove. This causes the driving wheel on the movable platform to make close contact with one end of the steel pipe, while simultaneously the driven wheel in the second rotating groove of the other side of the worktable comes into contact with the other end of the steel pipe, thus firmly clamping the steel pipe between the driving and driven wheels, ensuring the stability of the steel pipe during the detection process. This design improves the device's ability to quickly fix steel pipes of different diameters and enhances its versatility.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe flaw detection technology, specifically to a seamless steel pipe ultrasonic eddy current combined flaw detection device. Background Technology

[0002] Existing steel pipe manufacturers conduct flaw detection on steel pipes before they leave the factory to ensure their quality. Common flaw detection methods include X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, eddy current flaw detection, and gamma-ray flaw detection. In order to improve the accuracy of flaw detection, multiple flaw detection methods are used together. Commonly used equipment is the combined flaw detection equipment of ultrasonic flaw detection and eddy current flaw detection.

[0003] However, traditional flaw detection equipment can only fix one type of steel pipe when fixing steel pipes of different sizes, or it requires manual adjustment and fixing. It cannot be automatically adjusted, and its versatility and convenience are poor. To address this, we have proposed a seamless steel pipe ultrasonic eddy current combined flaw detection equipment. Utility Model Content

[0004] The purpose of this invention is to provide a seamless steel pipe ultrasonic eddy current combined flaw detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An ultrasonic eddy current combined flaw detection device for seamless steel pipes includes a support platform, a worktable, a movable groove, an electric push rod, a push rod, and a movable platform. The support platform has worktables fixedly mounted on both sides of its top. A movable groove is formed on one side of the top of one worktable. An electric push rod is fixedly mounted on the inner wall of the movable groove. A push rod is movably mounted on the output end of the electric push rod. A movable platform is fixedly mounted on the end of the push rod furthest from the electric push rod. The movable platform moves within its movable groove. A first rotating groove is formed on one side of the movable platform, and a drive wheel is movably mounted inside the first rotating groove.

[0007] The top of the drive wheel is rotatably connected to a top plate, and a connecting plate is fixedly installed at one end of the top plate. One end of the connecting plate is fixedly installed on the inner wall of the first rotating groove.

[0008] The connecting plate has a fixed plate on its top, and a servo motor is fixed on one side of the fixed plate. The output end of the servo motor is fixedly connected to the drive wheel.

[0009] The workbench on the other side has a second rotating groove facing the movable groove, and a driven wheel is rotatably connected inside the second rotating groove.

[0010] A conveying trough is formed between the opposite sides of the two workbenches, and several conveying rollers are rotatably connected inside the conveying trough.

[0011] The top of the conveying roller is slightly lower than the bottom of the movable table and the driven wheel, and the top of the two worktables is fixedly provided with a support base.

[0012] The flaw detection equipment body is fixedly installed between opposite sides of the support base, and the flaw detection equipment body is located at the top of the conveying trough.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This seamless steel pipe ultrasonic eddy current combined flaw detection equipment involves conveying the seamless steel pipe to be inspected into a conveying trough. Several conveying rollers rotate to smoothly move the steel pipe to the inspection area. When the steel pipe reaches the designated position, an electric push rod in the movable groove of one side of the worktable is activated, driving the movable table to move within the trough. This ensures that the driving wheel on the movable table makes close contact with one end of the steel pipe, while the driven wheel in the second rotating groove of the other side of the worktable comes into contact with the other end of the steel pipe. This securely clamps the steel pipe between the driving and driven wheels, ensuring the stability of the steel pipe during the inspection process. This design improves the device's ability to quickly fix steel pipes of different diameters and enhances its versatility.

[0015] 2. This seamless steel pipe ultrasonic eddy current combined flaw detection equipment operates by a servo motor on a fixed plate. The output of the servo motor drives a drive wheel to rotate, which in turn drives the steel pipe to move linearly through friction. The driven wheel rotates accordingly, ensuring smooth linear movement of the steel pipe. Simultaneously, the flaw detection equipment body, located at the top of the conveying trough, starts up, using ultrasonic and eddy current detection technologies to comprehensively scan the rotating seamless steel pipe. By appropriately rotating the pipe as needed, it can accurately detect potential defects on the surface and inside of the steel pipe, achieving an automated flaw detection process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0020] In the diagram: 1. Support platform; 2. Workbench; 3. Movable groove; 4. Electric push rod; 5. Push rod; 6. Movable platform; 7. First rotating groove; 8. Drive wheel; 9. Top plate; 10. Connecting plate; 11. Fixed plate; 12. Servo motor; 13. Second rotating groove; 14. Driven wheel; 15. Conveying groove; 16. Conveying roller; 17. Support base; 18. Flaw detection equipment body. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0023] An ultrasonic eddy current combined flaw detection device for seamless steel pipes includes a support platform 1, a worktable 2, a movable groove 3, an electric push rod 4, a push rod 5, and a movable platform 6. The worktable 2 is fixedly installed on both sides of the top of the support platform 1. A movable groove 3 is opened on one side of the top of one side of the worktable 2. An electric push rod 4 is fixedly installed on the inner wall of the movable groove 3. A push rod 5 is movably installed at the output end of the electric push rod 4. A movable platform 6 is fixedly installed at the end of the push rod 5 away from the electric push rod 4. The movable platform 6 moves inside the movable groove 3. A first rotating groove 7 is opened on one side of the movable platform 6. A drive wheel 8 is movably installed inside the first rotating groove 7.

[0024] The electric actuator 4 is a high-precision servo electric actuator with an aluminum alloy shell, which is lightweight and corrosion-resistant. The electric actuator 4 is bolted to the inner wall of the movable slot 3, and its fixed position is precisely calibrated to ensure that its output direction is consistent with the movement direction of the movable table 6. The electric actuator 4 has a precision transmission mechanism and limit device inside, which can accurately control the extension and retraction of the push rod 5, thereby achieving precise movement of the movable table 6. The drive wheel 8 has a metal hub wrapped in wear-resistant rubber. The rubber layer has a certain degree of elasticity, which increases the friction between the wheel and the steel pipe while preventing damage to the surface of the steel pipe.

[0025] A top plate 9 is rotatably connected to the top of the drive wheel 8. A connecting plate 10 is fixedly installed at one end of the top plate 9. One end of the connecting plate 10 is fixedly installed on the inner wall of the first rotating groove 7. A fixing plate 11 is fixedly installed on the top of the connecting plate 10. A servo motor 12 is fixedly installed on one side of the fixing plate 11. The output end of the servo motor 12 is fixedly connected to the drive wheel 8. A second rotating groove 13 is opened on the other side of the worktable 2 facing the movable groove 3. A driven wheel 14 is rotatably connected inside the second rotating groove 13. A conveying groove 15 is formed between the opposite sides of the two worktables 2. Several conveying rollers 16 are rotatably connected inside the conveying groove 15. The top of the conveying rollers 16 is slightly lower than the bottom of the movable table 6 and the driven wheel 14. A support base 17 is fixedly installed on the top of the two worktables 2. A flaw detection equipment body 18 is fixedly installed between the opposite sides of the support base 17. The flaw detection equipment body 18 is located on the top of the conveying groove 15.

[0026] The servo motor 12 is a high-precision variable frequency servo motor, characterized by stable speed, wide speed range, and fast response. The servo motor 12 is bolted to one side of the fixing plate 11, and its output shaft is connected to the central shaft of the drive wheel 8 via a coupling, allowing precise control of the drive wheel 8's speed. The flaw detection equipment body 18 is the core detection component, integrating an ultrasonic testing module and an eddy current testing module, representing a mature application of existing technology. The ultrasonic testing module emits ultrasonic waves through a probe towards the steel pipe, determining the presence of internal defects based on the reflected ultrasonic signals. The eddy current testing module generates eddy currents on the surface of the steel pipe through a coil, detecting surface defects based on changes in the eddy currents. The flaw detection equipment body 18 is bolted between opposite sides of the support base 17, and its detection probe can be adjusted according to the diameter of the steel pipe, ensuring the accuracy and reliability of the detection.

[0027] In this embodiment, the seamless steel pipe ultrasonic eddy current combined flaw detection equipment is used as follows: First, the seamless steel pipe to be inspected is conveyed into the conveying trough 15. Several conveying rollers 16 rotate to smoothly move the steel pipe to the inspection area. When the steel pipe reaches the designated position, the electric push rod 4 in the movable groove 3 of one side of the worktable 2 is activated, driving the movable table 6 to move within the movable groove 3 via the push rod 5. This causes the driving wheel 8 on the movable table 6 to make close contact with one end of the steel pipe, while the driven wheel 14 in the second rotating groove 13 of the other side of the worktable 2 comes into contact with the other end of the steel pipe, thus firmly clamping the steel pipe between the driving wheel 8 and the driven wheel 14, ensuring the stability of the steel pipe during the inspection process. Through the above design, the device's ability to quickly fix steel pipes of different diameters is improved, enhancing the device's versatility. Then, the servo motor 12 on the fixing plate 11 starts working, and its output end drives the driving wheel 8 to rotate. The driving wheel 8 drives the steel pipe to move linearly through the friction between it and the steel pipe, while the driven wheel 14 rotates accordingly with the movement of the steel pipe, ensuring that the steel pipe can move smoothly in a straight line. At this time, the flaw detection equipment body 18 located at the top of the conveying trough 15 is started, and ultrasonic and eddy current detection technologies are used to perform a comprehensive scan of the rotating seamless steel pipe. At the same time, the steel pipe is rotated appropriately as needed, which can accurately detect possible defects on the surface and inside of the steel pipe, and realize an automated flaw detection process.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe ultrasonic eddy current combined flaw detection device, comprising a support platform (1), a worktable (2), a movable groove (3), an electric push rod (4), a push rod (5), and a movable table (6), characterized in that: The support platform (1) has two fixed workbenches (2) on its top sides. A movable groove (3) is provided on one side of the top of one workbench (2). An electric push rod (4) is fixedly provided on the inner wall of the movable groove (3). A push rod (5) is movably provided at the output end of the electric push rod (4). A movable platform (6) is fixedly provided at the end of the push rod (5) away from the electric push rod (4). The movable platform (6) moves inside the movable groove (3). A first rotating groove (7) is provided on one side of the movable platform (6). A drive wheel (8) is movably provided inside the first rotating groove (7).

2. A seamless tube ultrasonic eddy current combined inspection apparatus according to claim 1, characterized in that: The top of the drive wheel (8) is rotatably connected to a top plate (9), and a connecting plate (10) is fixedly provided at one end of the top plate (9). One end of the connecting plate (10) is fixedly provided on the inner wall of the first rotating groove (7).

3. A seamless tube ultrasonic eddy current combined inspection apparatus according to claim 2, characterized in that: A fixing plate (11) is fixedly installed on the top of the connecting plate (10), and a servo motor (12) is fixedly installed on one side of the fixing plate (11). The output end of the servo motor (12) is fixedly connected to the drive wheel (8).

4. The apparatus according to claim 3, wherein: The workbench (2) on the other side has a second rotating groove (13) in the direction of the movable groove (3), and a driven wheel (14) is rotatably connected inside the second rotating groove (13).

5. A seamless tube ultrasonic eddy current combined inspection apparatus according to claim 4, characterized in that: A conveying trough (15) is formed between the opposite sides of the two worktables (2), and a plurality of conveying rollers (16) are rotatably connected inside the conveying trough (15).

6. A seamless tube ultrasonic eddy current combined inspection apparatus according to claim 5, characterized in that: The top of the conveying roller (16) is slightly lower than the bottom of the movable table (6) and the driven wheel (14), and the top of the two worktables (2) are fixedly provided with support seats (17).

7. A seamless tube ultrasonic eddy current combined inspection apparatus according to claim 6, characterized in that: The flaw detection equipment body (18) is fixedly arranged between opposite sides of the support base (17), and the flaw detection equipment body (18) is located at the top of the conveying trough (15).

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