Novel scanning frame for phased array detection

Abstract

The novel scanning frame for phased array detection comprises a cylindrical frame body, a plurality of first electric telescopic rods are evenly arranged at one end of the frame body in the circumferential direction, telescopic parts of the first electric telescopic rods penetrate through the frame body respectively, and clamping blocks are fixedly arranged at the ends of the telescopic parts respectively; the peripheral wall of the other end of the frame body is symmetrically and fixedly sleeved with two limiting guide rails, a moving table is jointly arranged between the two limiting guide rails, and a driving mechanism used for driving the moving table to move in the circumferential direction of the frame body is arranged between the frame body and the moving table; the end, away from the first electric telescopic rods, of the movable table extends out of the frame body and is provided with an ultrasonic detector. The device can meet the detection requirements of pipes with different outer diameters, is simple, convenient and rapid to operate, realizes automatic detection, and improves the detection efficiency and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of phased array detection, in particular to a novel scanning frame for phased array detection. Background Art

[0002] Ultrasonic phased array technology is an advanced new ultrasonic detection method that can present the detection results in the form of images from different angles, and provide rich information for the location, quantification, qualitative and grading of defects. It is widely used in a variety of detection devices for different butt-jointed pipes. At present, ultrasonic detection of butt-jointed pipe welds is often carried out manually through conventional ultrasonic detection, which is highly dependent on technical inspection personnel, has low detection efficiency and high fatigue strength. At the same time, when using a handheld probe for detection, the uneven force of manually pressing the probe can easily cause the echo amplitude to be high and low, which has a great impact on the quantitative detection of defects. In addition, the defect detection rate of handheld probes is low and the reliability is not high. Therefore, a scanning frame for phased array detection came into being. The scanning frame is a supporting structure for installing ultrasonic detection probes. The common method is to use threads to combine multiple chain links into one. This assembly method is relatively cumbersome and the operation is relatively troublesome. Using threads to combine multiple chain links into one, it is difficult to effectively adapt to the butt-jointed detection needs of pipes with different diameters. Therefore, a new scanning frame for phased array detection is developed. Utility Model Content

[0003] The purpose of the utility model is to provide a new scanning frame for phased array detection, so as to solve the technical problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a new scanning frame for phased array detection, comprising a cylindrical frame body, one end of the frame body is evenly provided with a plurality of first electric telescopic rods along the circumferential direction, the telescopic parts of the plurality of first electric telescopic rods respectively penetrate the frame body and the ends are respectively fixed with clamping blocks; two limit guide rails are symmetrically fixedly sleeved on the outer peripheral wall of the other end of the frame body, a moving platform is commonly provided between the two limit guide rails, two limit guide blocks respectively matched with the two limit guide rails are symmetrically fixedly provided on the side of the moving platform close to the frame body, a driving mechanism for driving the moving platform to move along the circumferential direction of the frame body is provided between the frame body and the moving platform; the moving platform extends to the outside of the frame body at one end away from the plurality of first electric telescopic rods and is provided with an ultrasonic detector.

[0006] Furthermore, each of the clamping blocks is provided with a V-shaped groove.

[0007] Furthermore, a first limiting ring groove is provided on the outer peripheral wall of each of the limiting guide rails, and a second limiting ring groove is provided inside the first limiting ring groove, and the width of the second limiting ring groove is greater than the width of the first limiting ring groove; each of the limiting guide blocks includes a first limiting block whose one end is fixedly connected to the inner side of the movable platform and the other end is slidably engaged with the first limiting ring groove, and the end of the other end of the first limiting block is fixedly provided with a second limiting block slidably engaged with the second limiting ring groove.

[0008] Furthermore, the driving mechanism includes an outer gear ring fixedly mounted on the outer peripheral wall of the frame, a gear rotatably mounted on the moving platform and matched with the outer gear ring, and a driving motor fixedly mounted on the moving platform for driving the gear to rotate, the outer gear ring is located between the two limiting guide rails, a square through hole is opened in the middle of the moving platform, two connecting plates are symmetrically fixed on both sides of the square through hole, the gear is rotatably mounted between the two connecting plates, and the driving motor is fixedly mounted on the outside of one of the connecting plates.

[0009] Furthermore, a second electric telescopic rod is fixedly provided at one end of the mobile platform away from the first electric telescopic rods along the radial direction of the frame, a mounting seat is fixedly provided at the telescopic end of the second electric telescopic rod, and the ultrasonic detector is arranged on the mounting seat.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] The utility model extends a plurality of first electric telescopic rods fixedly arranged outside the cylindrical frame so that a plurality of clamping blocks can fix and clamp the pipe, thereby fixing the frame on the pipe. In addition, the position of the ultrasonic detector can be adjusted by the second electric telescopic rod. During the detection process, the gear driven to rotate by the driving motor is kept in mesh with the outer gear ring on the frame, so that the mobile platform can move along the outer periphery of the frame and the circumference, so that the ultrasonic detector can detect various positions of the weld. Therefore, the utility model can meet the detection needs of pipes with different outer diameters, and the operation is simple, convenient and fast, realizing automatic detection and improving detection efficiency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Middle AA section view;

[0015] Figure 3 for Figure 1Middle BB section view;

[0016] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0017] Explanation of the accompanying drawings: 1. frame; 2. first electric telescopic rod; 3. pipe; 4. clamping block; 5. limit guide rail; 6. moving platform; 7. limit guide block; 8. first limit ring groove; 9. second limit ring groove; 10. first limit block; 11. second limit block; 12. outer gear ring; 13. gear; 14. driving motor; 15. connecting plate; 16. ultrasonic detector; 17. second electric telescopic rod; 18. mounting seat. DETAILED DESCRIPTION

[0018] like Figure 1 As shown in Figure 4, a new scanning frame for phased array detection includes a cylindrical frame body 1, and one end of the frame body 1 is evenly installed with a plurality of first electric telescopic rods 2 along the circumferential direction. The telescopic parts of the plurality of first electric telescopic rods 2 respectively penetrate the frame body 1 and the ends are respectively fixed with clamping blocks 4 for clamping the pipe 3 to be detected, and the plurality of clamping blocks 4 are respectively provided with V-shaped grooves.

[0019] Two limiting guide rails 5 are symmetrically fixedly sleeved on the outer peripheral wall at the other end of the frame body 1, and a moving platform 6 is installed between the two limiting guide rails 5. Two limiting guide blocks 7 respectively matched with the two limiting guide rails 5 are symmetrically fixedly arranged on the side of the moving platform 6 close to the frame body 1. Specifically: a first limiting ring groove 8 is opened on the outer peripheral wall of each limiting guide rail 5, and a second limiting ring groove 9 is opened inside the first limiting ring groove 8, and the width of the second limiting ring groove 9 is greater than the width of the first limiting ring groove 8. Each limiting guide block 7 includes a first limiting block 10 with one end fixedly connected to the inner side of the moving platform 6 and the other end slidingly matched with the first limiting ring groove 8, and a second limiting block 11 slidingly matched with the second limiting ring groove 9 is fixedly arranged at the end of the other end of the first limiting block 10.

[0020] A driving mechanism for driving the mobile platform to move along the circumference of the frame is provided between the frame 1 and the mobile platform 6. In this embodiment, the driving mechanism includes an outer gear ring 12 fixedly mounted on the outer peripheral wall of the frame 1, a gear 13 rotatably mounted on the mobile platform 6 and adapted to the outer gear ring 12, and a driving motor 14 fixedly mounted on the mobile platform 6 for driving the gear 13 to rotate. Specifically: the outer gear ring 12 is located between the two limit guide rails 5, a square through hole is provided in the middle of the mobile platform 6, two connecting plates 15 are symmetrically fixedly provided on both sides of the square through hole, the gear 13 is rotatably mounted between the two connecting plates 15, and the driving motor 14 is fixedly mounted on the outer side of one of the connecting plates 15.

[0021] One end of the mobile platform 6 away from the first electric telescopic rods 2 extends to the outside of the frame 1 and is provided with an ultrasonic detector 16. As an improvement, one end of the mobile platform 6 away from the first electric telescopic rods 2 is fixedly installed with a second electric telescopic rod 17 along the radial direction of the frame 1, and a mounting seat 18 is fixedly provided at the telescopic end of the second electric telescopic rod 17, and the ultrasonic detector 16 is installed on the mounting seat 18.

[0022] When the utility model is working, the frame is firstly placed on the butted pipes to be inspected, the position of the frame is adjusted so that the ultrasonic detector is facing the welds of the two butted pipes, and then the plurality of first electric telescopic rods are extended so that the plurality of clamping blocks can fix and clamp the pipes, thereby fixing the frame on the pipes. After the inspection operation starts, the drive motor is started to rotate the gears, and since the rotating gears are meshed with the outer gear ring on the frame, the moving platform can move along the outer periphery of the frame and the circumference, so that the ultrasonic detector can inspect various positions of the welds.

[0023] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A new scanning frame for phased array detection, characterized in that: It comprises a cylindrical frame, one end of which is evenly provided with a plurality of first electric telescopic rods along the circumferential direction, the telescopic parts of the plurality of first electric telescopic rods respectively penetrate the frame and are fixedly provided with clamping blocks at the ends; two limit guide rails are symmetrically fixedly sleeved on the outer circumferential wall of the other end of the frame, a moving platform is commonly provided between the two limit guide rails, two limit guide blocks respectively matched with the two limit guide rails are symmetrically fixedly provided on the side of the moving platform close to the frame, a driving mechanism for driving the moving platform to move along the circumferential direction of the frame is provided between the frame and the moving platform; one end of the moving platform away from the plurality of first electric telescopic rods extends to the outside of the frame and is provided with an ultrasonic detector.

2. The novel scanning frame for phased array detection according to claim 1 is characterized in that: A plurality of the clamping blocks are respectively provided with V-shaped grooves.

3. The novel scanning frame for phased array detection according to claim 1, characterized in that: A first limiting ring groove is provided on the outer peripheral wall of each of the limiting guide rails, and a second limiting ring groove is provided inside the first limiting ring groove, and the width of the second limiting ring groove is greater than the width of the first limiting ring groove; each of the limiting guide blocks includes a first limiting block with one end fixedly connected to the inner side of the moving platform and the other end slidingly engaged with the first limiting ring groove, and the end of the other end of the first limiting block is fixedly provided with a second limiting block slidingly engaged with the second limiting ring groove.

4. The novel scanning frame for phased array detection according to claim 1, characterized in that: The driving mechanism includes an outer gear ring fixedly mounted on the outer peripheral wall of the frame, a gear rotatably mounted on the moving platform and matched with the outer gear ring, and a driving motor fixedly mounted on the moving platform for driving the gear to rotate. The outer gear ring is located between the two limiting guide rails, a square through hole is opened in the middle of the moving platform, two connecting plates are symmetrically fixed on both sides of the square through hole, the gear is rotatably mounted between the two connecting plates, and the driving motor is fixedly mounted on the outside of one of the connecting plates.

5. The novel scanning frame for phased array detection according to claim 1 is characterized in that: A second electric telescopic rod is fixedly provided at one end of the mobile platform away from the first electric telescopic rods along the radial direction of the frame, a mounting seat is fixedly provided at the telescopic end of the second electric telescopic rod, and the ultrasonic detector is arranged on the mounting seat.

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