Pipeline nondestructive testing auxiliary device

Abstract

The utility model discloses a pipeline nondestructive testing auxiliary device which comprises a supporting ring and connecting arms, four sets of connecting arms are installed on the side wall of the supporting ring at equal intervals, fixing rings are arranged on the two sides of the supporting ring, the fixing rings are fixedly connected with the connecting arms, limiting rings are installed on the inner walls of the fixing rings, and the limiting rings are fixedly connected with the connecting arms. Movable rings are arranged in the fixed rings, sliding grooves are formed in the outer walls of the movable rings, the sliding grooves are in sliding connection with the limiting rings, toothed rings are installed on the side walls of the movable rings, bearing plates are installed on the side walls of the toothed rings, and ultrasonic flaw detectors are installed at the bottom ends of the bearing plates. And a pipeline body is arranged in the supporting ring and the movable ring. According to the utility model, not only are convenient and fast mobile nondestructive testing of the pipeline and convenient and fast surrounding nondestructive testing of the pipeline realized, but also nondestructive testing of different positions of the pipeline is facilitated, and the convenience and the flexibility of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices, in particular to a pipeline non-destructive testing auxiliary device. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. After long-term use, the pipeline needs to be inspected for loss. At present, ultrasonic flaw detection is mostly used for pipeline inspection. Ultrasonic flaw detection is a technology that uses ultrasonic waves to non-destructively check the internal defects and scars of materials or mechanical parts. Traditional pipeline inspection methods are mostly manual handheld inspections, which are inefficient and have high labor costs. In order to better perform non-destructive inspection on pipelines, a pipeline non-destructive inspection auxiliary device is proposed.

[0003] For example, a natural gas pipeline nondestructive testing auxiliary device disclosed in the authorization announcement number CN220957973U includes a mounting frame, a screw rod is symmetrically rotated in the front and rear of the mounting frame, an extrusion sealing plate is threadedly arranged between the two screw rods, and the extrusion sealing plate is located at the right part of the screw rod, a motor is arranged at the rear left side of the mounting frame, and the output shaft of the motor is connected to the screw rod at the rear side of the mounting frame through a coupling, and a ventilation pipe is arranged through the middle part of the left side of the mounting frame;

[0004] Although it realizes that the staff can control the motor to drive the screw rod to squeeze the sealing plate to clamp the natural gas pipeline, and then pass air into the natural gas pipeline and use the air pressure detector to detect the air pressure in the pipeline, so that the device can adapt to natural gas pipelines of different lengths and diameters;

[0005] However, the problem that the existing auxiliary device is not conducive to the convenient mobile non-destructive testing pipeline and the convenient surrounding non-destructive testing pipeline when in use, is not conducive to non-destructive testing of different positions of the pipeline, and affects the convenience and flexibility of the detection. Utility Model Content

[0006] The purpose of the utility model is to provide a pipeline non-destructive testing auxiliary device to solve the problem that the auxiliary device proposed in the above background technology is not convenient for mobile non-destructive testing pipelines and convenient surrounding non-destructive testing pipelines, is not conducive to non-destructive testing of different positions of the pipeline, and affects the convenience and flexibility of detection.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An auxiliary device for non-destructive testing of pipelines, including a support ring and connecting arms. Four groups of connecting arms are installed at equal intervals on the side wall of the support ring. Fixed rings are provided on both sides of the support ring, and the fixed rings are fixedly connected to the connecting arms. Limiting rings are installed on the inner walls of the fixed rings. Movable rings are arranged inside the fixed rings. Sliding grooves are installed on the outer walls of the movable rings, and the sliding grooves are slidably connected to the limiting rings. Tooth rings are installed on the side walls of the movable rings. Bearing plates are installed on the side walls of the tooth rings. Ultrasonic flaw detectors are installed at the bottom ends of the bearing plates. A pipeline body is arranged inside the support ring and the movable ring. Connecting plates are installed at the bottom ends of the fixed rings. Three groups of integrated frames are installed at equal intervals on the inner wall of the support ring.

[0008] Preferably, auxiliary motors are installed on the side walls of the connecting plates, and rotating shafts are installed at the output ends of the auxiliary motors.

[0009] Preferably, gears are sleeved on the surfaces of the rotating shafts, and the gears are meshed with the tooth rings.

[0010] Preferably, main motors are installed at one ends of the integrated frames, and bidirectional threaded rods are installed at the output ends of the main motors, and the bidirectional threaded rods are movably connected to the integrated frames.

[0011] Preferably, two groups of bidirectional threaded sleeves are sleeved on the surfaces of the bidirectional threaded rods, and the bidirectional threaded sleeves are threadedly connected to the bidirectional threaded rods, and the bidirectional threaded sleeves are slidably connected to the integrated frames.

[0012] Preferably, connecting arms are installed on the side walls of the bidirectional threaded sleeves. Hinge shafts are installed at the ends of the connecting arms close to the bidirectional threaded sleeves, and the connecting arms are movably connected to the bidirectional threaded sleeves through the hinge shafts.

[0013] Preferably, rotating arms are installed at the ends of the connecting arms far from the bidirectional threaded sleeves. Lower movable shafts are installed at the ends of the connecting arms close to the rotating arms, and the connecting arms are movably connected to the rotating arms through the lower movable shafts. Upper movable shafts are installed at the ends of the rotating arms close to the integrated frames, and the rotating arms are movably connected to the integrated frames through the upper movable shafts.

[0014] Preferably, drive shafts are movably installed at the ends of the rotating arms far from the integrated frames. Travel wheels are sleeved on the surfaces of the drive shafts. Travel motors are installed on the side walls of the rotating arms, and the output ends of the travel motors are connected to the drive shafts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: This auxiliary device not only realizes convenient mobile non-destructive testing of pipelines and convenient circumferential non-destructive testing of pipelines, facilitates non-destructive testing of different positions of pipelines, but also improves the convenience and flexibility of testing;

[0016] (1) Drive the bidirectional threaded rod to rotate by the main motor, drive two groups of bidirectional threaded sleeves to move towards each other by the bidirectional threaded rod, drive the connecting arm to rotate by the bidirectional threaded sleeve through the hinge shaft, drive the rotating arm to rotate around the upper movable shaft by the connecting arm through the lower movable shaft, drive the traveling wheel to rotate by the rotating arm, so that the traveling wheel contacts the outer wall of the pipe body, and under the combined action of multiple groups of traveling wheels, fix the whole device on the pipe body to provide stable support for the ultrasonic flaw detector, use the ultrasonic flaw detector to perform non-destructive ultrasonic flaw detection on the pipe body to complete the non-destructive detection of the pipe body, drive the drive shaft to rotate by the traveling motor, drive the traveling wheel to rotate by the drive shaft, drive the ultrasonic flaw detector to move by the traveling wheel, and use the ultrasonic flaw detector to perform mobile non-destructive detection on the pipe body, realizing convenient mobile non-destructive detection of the pipe, facilitating non-destructive detection of different positions of the pipe, and improving the convenience of detection;

[0017] (2) Drive the rotating shaft to rotate by the auxiliary motor, drive the gear to rotate by the rotating shaft, drive the toothed ring to rotate by the gear, drive the movable ring to rotate by the toothed ring, drive the sliding groove to slide on the surface of the limiting ring by the movable ring, use the limiting ring and the sliding groove to provide movable limiting support for the movable ring and the toothed ring, drive the bearing plate and the ultrasonic flaw detector to rotate by the toothed ring, and use the ultrasonic flaw detector to perform circumferential detection on the pipe, realizing convenient circumferential non-destructive detection of the pipe and improving the flexibility of detection. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 It is a three-dimensional structure schematic diagram of the support ring of the present utility model;

[0020] Figure 3 It is a three-dimensional structure schematic diagram of the integrated frame of the present utility model;

[0021] Figure 4 It is a front view sectional structure schematic diagram of the fixed ring of the present utility model;

[0022] Figure 5 It is a three-dimensional structure schematic diagram of the connecting plate of the present utility model.

[0023] In the figure: 1, connecting plate; 2, fixing ring; 3, integrated frame; 4, support ring; 5, connecting arm; 6, bidirectional threaded sleeve; 7, main motor; 8, upper movable shaft; 9, rotating arm; 10, lower movable shaft; 11, hinge shaft; 12, connecting arm; 13, bidirectional threaded rod; 14, traveling wheel; 15, traveling motor; 16, drive shaft; 17, movable ring; 18, toothed ring; 19, bearing plate; 20, ultrasonic flaw detector; 21, auxiliary motor; 22, gear; 23, rotating shaft; 24, limiting ring; 25, chute; 26, pipe body. Detailed implementation manners

[0024] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and effects of the present utility model as follows.

[0025] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a pipeline non-destructive testing auxiliary device, including a support ring 4 and a connecting arm 5. Four groups of connecting arms 5 are installed at equal intervals on the side wall of the support ring 4. Fixing rings 2 are arranged on both sides of the support ring 4, and the fixing rings 2 are fixedly connected to the connecting arms 5. Limiting rings 24 are installed on the inner walls of the fixing rings 2. Movable rings 17 are arranged inside the fixing rings 2. Chutes 25 are installed on the outer walls of the movable rings 17, and the chutes 25 are slidably connected to the limiting rings 24. Toothed rings 18 are installed on the side walls of the movable rings 17. Bearing plates 19 are installed on the side walls of the toothed rings 18. Ultrasonic flaw detectors 20 are installed at the bottom ends of the bearing plates 19. A pipe body 26 is arranged inside the support ring 4 and the movable ring 17. Connecting plates 1 are installed at the bottom ends of the fixing rings 2. Three groups of integrated frames 3 are installed at equal intervals on the inner wall of the support ring 4;

[0026] First, the overall device is sleeved on the pipe body 26, and the device is connected to an external controller and an external circuit. The main motor 7 is turned on, and the main motor 7 drives the bidirectional threaded rod 13 to rotate. Under the threaded connection between the bidirectional threaded rod 13 and the bidirectional threaded sleeve 6, and under the sliding fit between the bidirectional threaded sleeve 6 and the integrated frame 3, the two groups of bidirectional threaded sleeves 6 are driven by the bidirectional threaded rod 13 to move towards each other. The bidirectional threaded sleeve 6 drives the connecting arm 12 to rotate through the hinge shaft 11, and the connecting arm 12 drives the rotating arm 9 to rotate around the upper moving shaft 8 through the lower moving shaft 10. The rotating arm 9 drives the traveling wheel 14 to rotate, so that the traveling wheel 14 contacts the outer wall of the pipe body 26. Under the combined action of multiple groups of traveling wheels 14, the overall device is fixed on the pipe body 26 to provide stable support for the ultrasonic flaw detector 20. Then, the ultrasonic flaw detector 20 is turned on, and the ultrasonic flaw detector 20 is used to perform non-destructive ultrasonic flaw detection on the pipe body 26. The model of the ultrasonic flaw detector 20 is the same type of product as YOUTRON / Youchuang TSUT-350. Its working principle is: when ultrasonic waves propagate in the material to be detected, the acoustic characteristics of the material and the changes in the internal structure have a certain impact on the propagation of ultrasonic waves. By detecting the degree and condition of the ultrasonic waves affected, the performance and structural changes of the material are understood to complete the non-destructive detection of the pipe body 26. At this time, the traveling motor 15 is turned on, and the traveling motor 15 drives the drive shaft 16 to rotate. The drive shaft 16 drives the traveling wheel 14 to rotate. Under the combined action of multiple groups of traveling wheels 14, the traveling wheel 14 drives the ultrasonic flaw detector 20 to move, and the ultrasonic flaw detector 20 is used to perform mobile non-destructive detection on the pipe body 26, realizing convenient mobile non-destructive detection of the pipeline, facilitating non-destructive detection of different positions of the pipeline, and improving the convenience of detection;

[0027] Auxiliary motors 21 are installed on the side walls of the connecting plate 1. The auxiliary motors 21 play a role in power driving. The output ends of the auxiliary motors 21 are all installed with rotating shafts 23. Gear 22 is sleeved on the surface of the rotating shaft 23, and the gear 22 meshes with the toothed ring 18;

[0028] Main motors 7 are installed at one end of the integrated frame 3. The main motors 7 play a role in power driving. The output ends of the main motors 7 are all installed with bidirectional threaded rods 13, and the bidirectional threaded rods 13 are movably connected to the integrated frame 3;

[0029] Two groups of bidirectional threaded sleeves 6 are sleeved on the surface of the bidirectional threaded rod 13. The bidirectional threaded sleeve 6 is threadedly connected to the bidirectional threaded rod 13, and the bidirectional threaded sleeve 6 is slidably connected to the integrated frame 3. Connecting arms 12 are installed on the side walls of the bidirectional threaded sleeve 6. Hinge shafts 11 are installed at one end of the connecting arm 12 close to the bidirectional threaded sleeve 6, and the connecting arm 12 is movably connected to the bidirectional threaded sleeve 6 through the hinge shaft 11;

[0030] At one end of the connecting arm 12 away from the double-threaded sleeve 6, rotating arms 9 are installed. At one end of the connecting arm 12 close to the rotating arm 9, lower movable shafts 10 are installed, and the connecting arm 12 is movably connected to the rotating arm 9 through the lower movable shaft 10. At one end of the rotating arm 9 close to the integrated frame 3, upper movable shafts 8 are installed, and the rotating arm 9 is movably connected to the integrated frame 3 through the upper movable shaft 8;

[0031] At one end of the rotating arm 9 away from the integrated frame 3, drive shafts 16 are movably installed. Travel wheels 14 are sleeved on the surfaces of the drive shafts 16. Travel motors 15 are installed on the side walls of the rotating arms 9. The travel motors 15 play a role in power driving, and the output ends of the travel motors 15 are connected to the drive shafts 16;

[0032] Turn on the auxiliary motor 21. The auxiliary motor 21 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the gear 22 to rotate. Under the mutual meshing of the gear 22 and the toothed ring 18, the gear 22 drives the toothed ring 18 to rotate. The toothed ring 18 drives the movable ring 17 to rotate. The movable ring 17 drives the sliding groove 25 to slide on the surface of the limiting ring 24. The limiting ring 24 and the sliding groove 25 provide movable limit support for the movable ring 17 and the toothed ring 18. The toothed ring 18 drives the bearing plate 19 and the ultrasonic flaw detector 20 to rotate. The ultrasonic flaw detector 20 performs circumferential detection on the pipeline, realizing convenient circumferential non-destructive detection of the pipeline and improving the flexibility of detection.

[0033] Working principle: First, the whole device is sleeved on the pipeline body 26, and the device is connected to an external controller and an external circuit. The main motor 7 drives the bidirectional threaded rod 13 to rotate. The bidirectional threaded rod 13 drives two groups of bidirectional threaded sleeves 6 to move towards each other. The bidirectional threaded sleeves 6 drive the connecting arms 12 to rotate through the hinge shafts 11. The connecting arms 12 drive the rotating arms 9 to rotate around the upper movable shaft 8 through the lower movable shaft 10. The rotating arms 9 drive the traveling wheels 14 to rotate, so that the traveling wheels 14 contact the outer wall of the pipeline body 26. Under the combined action of multiple groups of traveling wheels 14, the whole device is fixed on the pipeline body 26 to provide stable support for the ultrasonic flaw detector 20. Then, the ultrasonic flaw detector 20 is turned on, and the ultrasonic flaw detector 20 performs non-destructive ultrasonic flaw detection on the pipeline body 26 to complete the non-destructive detection of the pipeline body 26. The traveling motor 15 drives the drive shaft 16 to rotate. The drive shaft 16 drives the traveling wheels 14 to rotate. Under the combined action of multiple groups of traveling wheels 14, the traveling wheels 14 drive the ultrasonic flaw detector 20 to move, and the ultrasonic flaw detector 20 performs mobile non-destructive detection on the pipeline body 26. The auxiliary motor 21 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the gear 22 to rotate. The gear 22 drives the toothed ring 18 to rotate. The toothed ring 18 drives the movable ring 17 to rotate. The movable ring 17 drives the sliding groove 25 to slide on the surface of the limiting ring 24. The limiting ring 24 and the sliding groove 25 provide movable limit support for the movable ring 17 and the toothed ring 18. The toothed ring 18 drives the bearing plate 19 and the ultrasonic flaw detector 20 to rotate, and the ultrasonic flaw detector 20 performs circumferential detection on the pipeline to complete the use of the pipeline non-destructive detection auxiliary device.

[0034] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes, but as long as the technical content of the present invention is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A pipeline non-destructive testing auxiliary device, comprising a support ring (4) and a connecting arm (5), characterized in that: Four groups of connecting arms (5) are installed at equal intervals on the side walls of the support ring (4), a fixing ring (2) is installed on both sides of the support ring (4), and the fixing ring (2) is fixedly connected to the connecting arm (5), a limiting ring (24) is installed on the inner wall of the fixing ring (2), a movable ring (17) is installed inside the fixing ring (2), a sliding groove (25) is installed on the outer wall of the movable ring (17), and the sliding groove (25) is slidably connected to the limiting ring (24). The movable ring (17) is connected to a gear ring (18) on its side wall, a bearing plate (19) is installed on its side wall, an ultrasonic flaw detector (20) is installed on the bottom end of the bearing plate (19), a pipe body (26) is arranged inside the support ring (4) and the movable ring (17), a connecting plate (1) is installed on the bottom end of the fixed ring (2), and three groups of integrated frames (3) with equal spacing are installed on the inner wall of the support ring (4).

2. A pipeline non-destructive testing auxiliary device according to claim 1, characterized in that: Auxiliary motors (21) are installed on the side walls of the connecting plates (1), and rotating shafts (23) are installed on the output ends of the auxiliary motors (21).

3. A pipeline non-destructive testing auxiliary device according to claim 2, characterized in that: The surface of the rotating shaft (23) is provided with a gear (22), and the gear (22) and the gear ring (18) are meshed with each other.

4. The pipeline non-destructive testing auxiliary device according to claim 1 is characterized in that: A main motor (7) is installed at one end of the integrated frame (3), a bidirectional threaded rod (13) is installed at the output end of the main motor (7), and the bidirectional threaded rod (13) is movably connected to the integrated frame (3).

5. A pipeline non-destructive testing auxiliary device according to claim 4, characterized in that: The surfaces of the bidirectional threaded rods (13) are each sleeved with two sets of bidirectional threaded sleeves (6), the bidirectional threaded sleeves (6) are threadedly connected to the bidirectional threaded rods (13), and the bidirectional threaded sleeves (6) are slidably connected to the integrated frame (3).

6. A pipeline non-destructive testing auxiliary device according to claim 5, characterized in that: A connecting arm (12) is installed on the side wall of the bidirectional threaded sleeve (6), and a hinge shaft (11) is installed on one end of the connecting arm (12) close to the bidirectional threaded sleeve (6), and the connecting arm (12) is movably connected to the bidirectional threaded sleeve (6) via the hinge shaft (11).

7. A pipeline non-destructive testing auxiliary device according to claim 6, characterized in that: The end of the connecting arm (12) away from the bidirectional threaded sleeve (6) is equipped with a rotating arm (9), the end of the connecting arm (12) close to the rotating arm (9) is equipped with a lower movable shaft (10), and the connecting arm (12) is movably connected to the rotating arm (9) through the lower movable shaft (10), and the end of the rotating arm (9) close to the integrated frame (3) is equipped with an upper movable shaft (8), and the rotating arm (9) is movably connected to the integrated frame (3) through the upper movable shaft (8).

8. A pipeline non-destructive testing auxiliary device according to claim 7, characterized in that: A drive shaft (16) is movably mounted on one end of the rotating arm (9) away from the integrated frame (3); a travel wheel (14) is mounted on the surface of the drive shaft (16); a travel motor (15) is mounted on the side wall of the rotating arm (9); and an output end of the travel motor (15) is connected to the drive shaft (16).

Images