A pressure vessel flaw detection device

Abstract

This utility model discloses a pressure vessel flaw detection device, including a base, a flaw detection platform above the base, and support seats on both sides above the flaw detection platform. Each support seat has an open mounting cavity containing five rotating rods arranged in a ring at equal intervals. Both sides of each rotating rod are rotatably connected to the inner wall of the mounting cavity. Rubber rollers are fixedly mounted on the outside of each rotating rod. A container body is mounted on the upper end of the support seat, with the lower end of the container body contacting the rubber rollers. Limit frames are fixedly mounted at both the front and rear ends of the upper end of the flaw detection platform. A ball bearing is mounted on the end of the limit frame closest to the container body, and the ball bearing contacts the container body. This structure solves the problems of insufficient flaw detection effect on the container and difficulty in adjusting the position of the support seats.

Description

Technical Field

[0001] This utility model relates to the field of container flaw detection technology, specifically a pressure vessel flaw detection device. Background Technology

[0002] Pressure vessel flaw detection equipment is an important device used to detect internal or surface defects in pressure vessels. It utilizes non-destructive testing techniques such as ultrasonic, X-ray, magnetic particle, and penetrant testing to comprehensively inspect the materials, welds, and structure of pressure vessels. A typical pressure vessel flaw detection equipment consists of a flaw detector, sensors, a mechanical scanning device, a base, and a hydraulic telescopic device. During operation, the flaw detector generates an electrical pulse signal, which excites the probe to emit ultrasonic waves. These ultrasonic waves propagate inside the pressure vessel and are reflected when they encounter defects or interfaces. The probe receives the reflected ultrasonic signals and converts them into electrical signals. The flaw detector then processes the received signals.

[0003] For example, Chinese patent CN220019524U, entitled "A Pressure Vessel Weld Flaw Detection Device," includes a probe, a base, a lifting mechanism, a lateral movement mechanism, a cylinder, and a connecting ball. The lifting mechanism includes a driving component, a fixed block, a connecting block, a support column, and a crossbar. The base is provided with a first sliding groove, and the support column is slidably connected to the first sliding groove. The driving component is fixedly connected to the base, and the output end of the driving component is fixedly connected to the fixed block. One end of the connecting block is hinged to the fixed block, and the other end of the connecting block is hinged to the support column. The crossbar is fixedly connected to the support column and is located above the support column. The lateral movement mechanism is disposed on the support column, and the cylinder is mounted on the lateral movement mechanism. The output end of the cylinder is fixedly connected to the connecting ball.

[0004] While the aforementioned existing technologies can perform flaw detection on pressure vessels, in practical use, the flaw detection effect is not good enough. Since the vessel is usually placed statically on the support, there are certain blind spots during the flaw detection process, thus reducing the effectiveness of the flaw detection. Furthermore, it is difficult to adjust the position of the support, which is usually fixed on the flaw detection table, making it difficult to place unsuitable vessel bodies on the support, thus reducing the adaptability of the support. Therefore, these technologies do not meet current requirements. To address this, we propose a pressure vessel flaw detection device. Utility Model Content

[0005] The purpose of this invention is to provide a pressure vessel flaw detection device to solve the problems mentioned in the background art, such as insufficient flaw detection effect of the vessel and difficulty in adjusting the position of the support.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure vessel flaw detection device, comprising a base, a flaw detection platform above the base, and support seats on both sides above the flaw detection platform. The support seats have an internal mounting cavity with an open structure. Five rotating rods are arranged inside the mounting cavity, equidistantly distributed in a ring, and both sides of the rotating rods are rotatably connected to the inner wall of the mounting cavity. Rubber rollers are fixedly mounted on the outside of each rotating rod. A container body is mounted on the upper end of the support seats, with the lower end of the container body contacting the rubber rollers. Limit frames are fixedly mounted at both the front and rear ends of the upper end of the flaw detection platform. A ball bearing is mounted on the end of the limit frame closest to the container body, and the ball bearing contacts the container body.

[0007] Preferably, three drive motors are fixedly installed on one side of the outer side of the support base. The drive motors are distributed in a ring at equal intervals, and the output shaft of the drive motor extends into the mounting cavity and is fixedly connected to the rotating rod.

[0008] Preferably, a second sliding groove is provided on both sides inside the flaw detection table. The upper end of the second sliding groove is an open structure. Limiting rods are fixedly provided at the front and rear ends inside the second sliding groove. A movable seat is provided inside the second sliding groove. The movable seat slides and engages with the second sliding groove. The movable seat is sleeved on the outside of the limiting rod and is fixedly connected to the support seat.

[0009] Preferably, a second hydraulic telescopic device is fixedly installed on both sides of the outside of the flaw detection table, and the telescopic end of the second hydraulic telescopic device extends into the interior of the second slide groove and is fixedly connected to the movable seat.

[0010] Preferably, the base has a first sliding groove at both the front and rear ends. The upper end of the first sliding groove is open. A lead screw is installed inside the first sliding groove. Both sides of the lead screw are rotatably connected to the inner wall of the first sliding groove. A movable frame is sleeved on the outside of the lead screw. The upper end of the movable frame extends to the top of the base. The movable frame slides and is limited to the first sliding groove. A flaw detector assembly is fixedly installed at the lower end of the movable frame.

[0011] Preferably, servo motors are fixedly installed at both the front and rear ends on the outer side of the base, the output shaft of the servo motor extends into the interior of the first slide groove, and the output shaft of the servo motor is fixedly connected to the lead screw.

[0012] Preferably, a first hydraulic telescopic device is fixedly installed at each of the four corners of the lower end of the flaw detection table, and the lower end of the first hydraulic telescopic device is fixedly connected to the base.

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

[0014] (1) This utility model can rotate the container body on the flaw detection table by using a drive motor and rubber rollers. When the container is being flaw detected, the container is placed on the support. At this time, the drive motor is turned on, so that the output shaft of the drive motor drives the rotating rod to rotate. At this time, the rubber rollers fixedly connected to the rotating rod rotate together. The container body rotates due to the friction between it and the rubber rollers. At the same time, the container body and the ball rotate together. Flaw detection is performed during the rotation of the container body, thereby reducing the dead angles on the container body and improving the accuracy of the flaw detection operation.

[0015] (2) This utility model can adjust the position of the movable seat through the second hydraulic telescopic device and the limiting rod. Before the flaw detection operation, the distance between the support seats is adjusted according to the actual length of the container. At this time, the second hydraulic telescopic device is turned on, so that the telescopic end of the second hydraulic telescopic device extends and retracts. The extension and retraction of the telescopic end of the second hydraulic telescopic device drives the movable seat to move in the second slide groove. At the same time, the movable seat slides outside the limiting rod until the movable seat is adjusted to a suitable position. Then the container is placed on the support seat, and the container body contacts the rubber roller. At the same time, the limiting frame in the container passes through, thereby improving the support seat's ability to handle different objects.

[0016] (3) The present invention can adjust the position of the flaw detector assembly by means of a lead screw and a servo motor. When it is necessary to adjust the position of the flaw detector assembly, the servo motor is turned on, so that the output shaft of the servo motor drives the lead screw to rotate. The moving frame moves in the first slide groove through the thread on the outside of the lead screw. At the same time, the flaw detector assembly fixed at the lower end of the moving frame moves together until the flaw detector assembly is moved to a suitable position. Then the flaw detection operation of the container is carried out, thereby improving the flexibility of the movement of the flaw detector assembly. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Base; 2. First slide rail; 3. Lead screw; 4. Servo motor; 5. Moving frame; 6. Flaw detector assembly; 7. First hydraulic telescopic device; 8. Flaw detection table; 9. Second slide rail; 10. Second hydraulic telescopic device; 11. Limiting rod; 12. Moving seat; 13. Support seat; 14. Mounting cavity; 15. Rubber roller; 16. Drive motor; 17. Container body; 18. Limiting frame; 19. Ball bearing; 20. Rotating rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 An embodiment of this utility model provides a pressure vessel flaw detection device, including a base 1, a flaw detection table 8 above the base 1, and support seats 13 on both sides above the flaw detection table 8. The support seats 13 have an installation cavity 14 inside, which is an open structure. A first hydraulic telescopic device 7 is fixedly installed at the four corners of the lower end of the flaw detection table 8, and the lower end of the first hydraulic telescopic device 7 is fixedly connected to the base 1.

[0024] Please see Figure 1 , Figure 2 and Figure 4 The mounting cavity 14 is equipped with five rotating rods 20, which are distributed in a ring at equal intervals. Both sides of the rotating rods 20 are rotatably connected to the inner wall of the mounting cavity 14. Rubber rollers 15 are fixedly installed on the outside of the rotating rods 20. The upper end of the support 13 is equipped with a container body 17, and the lower end of the container body 17 is in contact with the rubber rollers 15. The front and rear ends of the upper end of the flaw detection table 8 are fixedly equipped with limit frames 18. The end of the limit frame 18 near the container body 17 is equipped with a ball bearing 19, which is in contact with the container body 17. Three drive motors 16 are fixedly installed on one side of the outside of the support 13. The drive motors 16 are distributed in a ring at equal intervals, and the output shaft of the drive motors 16 extends into the mounting cavity 14 and is fixedly connected to the rotating rods 20, so as to drive the container body 17 to rotate through the rubber rollers 15.

[0025] Please see Figure 1 and Figure 2The flaw detection table 8 has two sides inside, each with a second slide groove 9. The upper end of the second slide groove 9 is open. Limiting rods 11 are fixedly installed at the front and rear ends inside the second slide groove 9. A movable seat 12 is installed inside the second slide groove 9. The movable seat 12 slides and engages with the second slide groove 9. The movable seat 12 is sleeved on the outside of the limiting rods 11 and is fixedly connected to the support seat 13. Two hydraulic telescopic devices 10 are fixedly installed on both sides outside the flaw detection table 8. The telescopic end of the second hydraulic telescopic device 10 extends into the interior of the second slide groove 9 and is fixedly connected to the movable seat 12, so that the movable seat 12 can be moved inside the second slide groove 9 by the second hydraulic telescopic device 10.

[0026] Please see Figure 1 and Figure 3 The base 1 has a first sliding groove 2 at both the front and rear ends. The upper end of the first sliding groove 2 is open. A lead screw 3 is installed inside the first sliding groove 2. Both sides of the lead screw 3 are rotatably connected to the inner wall of the first sliding groove 2. A movable frame 5 is sleeved on the outside of the lead screw 3. The upper end of the movable frame 5 extends to the top of the base 1. The movable frame 5 slides and is limited to the first sliding groove 2. A flaw detector assembly 6 is fixedly installed at the lower end of the movable frame 5. A servo motor 4 is fixedly installed at both the front and rear ends on one side of the base 1. The output shaft of the servo motor 4 extends into the inside of the first sliding groove 2 and is fixedly connected to the lead screw 3, so as to facilitate the movement of the movable frame 5 by the lead screw 3.

[0027] Working principle: In use, first adjust the distance between the support seats 13 according to the actual length of the container. Then, activate the second hydraulic telescopic device 10, causing its telescopic end to extend and retract. This extension and retraction of the telescopic end of the second hydraulic telescopic device 10 drives the movable seat 12 to move within the second slide groove 9. Simultaneously, the movable seat 12 slides outside the limiting rod 11 until it is adjusted to the appropriate position. Then, place the container body 17 on the support seat 13, ensuring that the container body 17 contacts the rubber roller 15 and passes through the limiting frame 18 within the container body 17. At this point, activate the drive motor 16, causing the drive motor 16 to... The output shaft drives the rotating rod 20 to rotate. At this time, the rubber roller 15, which is fixedly connected to the rotating rod 20, also rotates. The container body 17 rotates due to the friction between itself and the rubber roller 15. At the same time, the container body 17 rotates in conjunction with the ball bearing 19. During the rotation of the container body 17, flaw detection is performed. When it is necessary to adjust the position of the flaw detector assembly 6, the servo motor 4 is turned on, so that the output shaft of the servo motor 4 drives the lead screw 3 to rotate. The moving frame 5 moves in the first slide groove 2 through the thread on the outside of the lead screw 3. At the same time, the flaw detector assembly 6, which is fixed at the lower end of the moving frame 5, moves together until the flaw detector assembly 6 is moved to the appropriate position.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure vessel flaw detection device, comprising a base (1), characterized in that: A flaw detection table (8) is provided above the base (1). Support seats (13) are provided on both sides above the flaw detection table (8). An installation cavity (14) is provided inside the support seat (13). The installation cavity (14) is an open structure. Five rotating rods (20) are provided inside the installation cavity (14). The rotating rods (20) are distributed in a ring at equal intervals. Both sides of the rotating rods (20) are rotatably connected to the inner wall of the installation cavity (14). Rubber rollers (15) are fixedly provided on the outside of the rotating rods (20). A container body (17) is provided at the upper end of the support seat (13). The lower end of the container body (17) is in contact with the rubber rollers (15). Limiting frames (18) are fixedly provided at the front and rear ends of the upper end of the flaw detection table (8). A ball bearing (19) is provided at the end of the limiting frame (18) near the container body (17). The ball bearing (19) is in contact with the container body (17).

2. The pressure vessel flaw detection device according to claim 1, characterized in that: Three drive motors (16) are fixedly installed on one side of the support (13). The drive motors (16) are distributed in a ring at equal intervals, and the output shaft of the drive motors (16) extends into the mounting cavity (14) and is fixedly connected to the rotating rod (20).

3. The pressure vessel flaw detection device according to claim 2, characterized in that: The flaw detection table (8) has a second slide groove (9) on both sides inside. The upper end of the second slide groove (9) is an open structure. The front and rear ends of the second slide groove (9) are fixedly provided with limit rods (11). The second slide groove (9) is provided with a movable seat (12). The movable seat (12) is slidably engaged with the second slide groove (9). The movable seat (12) is sleeved on the outside of the limit rod (11), and the movable seat (12) is fixedly connected to the support seat (13).

4. The pressure vessel flaw detection device according to claim 3, characterized in that: The flaw detection table (8) is fixedly provided with a second hydraulic telescopic device (10) on both sides of the outside. The telescopic end of the second hydraulic telescopic device (10) extends into the interior of the second slide groove (9) and is fixedly connected to the movable seat (12).

5. A pressure vessel flaw detection device according to claim 4, characterized in that: The base (1) has a first sliding groove (2) at both the front and rear ends. The upper end of the first sliding groove (2) is an open structure. A lead screw (3) is provided inside the first sliding groove (2). Both sides of the lead screw (3) are rotatably connected to the inner wall of the first sliding groove (2). A movable frame (5) is sleeved on the outside of the lead screw (3). The upper end of the movable frame (5) extends to the top of the base (1). The movable frame (5) slides and is limited to the first sliding groove (2). A flaw detector assembly (6) is fixedly provided at the lower end of the movable frame (5).

6. The pressure vessel flaw detection device according to claim 5, characterized in that: Servo motors (4) are fixedly installed at the front and rear ends of the outer side of the base (1). The output shaft of the servo motor (4) extends into the interior of the first slide groove (2), and the output shaft of the servo motor (4) is fixedly connected to the lead screw (3).

7. A pressure vessel flaw detection device according to claim 6, characterized in that: The four corners of the lower end of the flaw detection table (8) are all fixedly equipped with a first hydraulic telescopic device (7), and the lower end of the first hydraulic telescopic device (7) is fixedly connected to the base (1).

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