X-ray pipeline crawler

Abstract

The invention discloses an X-ray pipeline crawler which comprises a vehicle body, an auxiliary assembly and an adjusting assembly, the auxiliary assembly is arranged on the vehicle body, the adjusting assembly is arranged on the auxiliary assembly, an X-ray flaw detector is arranged on the adjusting assembly, and the auxiliary assembly comprises a box body arranged at the top of the vehicle body. A double-shaft motor is arranged in an inner cavity of the box body, screw rods are arranged at the two output ends of the double-shaft motor, and two limiting rods located on the two sides of the double-shaft motor are arranged in the inner cavity of the box body. According to the X-ray pipeline crawler, under the action of the auxiliary assembly, the limiting wheels on the two sides can be attached to the pipe wall of a pipeline, so that the stability of the vehicle body in the advancing process is guaranteed, meanwhile, the limiting wheels on the two sides move towards the opposite side or the separated side, and the distance between the limiting wheels on the two sides can be adjusted; and therefore, the limiting wheels on the two sides can be attached to the pipeline walls with different pipe diameters, and the practicability is improved.

Description

Technical Field

[0001] The invention relates to the field of pipeline flaw detection, and in particular to an X-ray pipeline crawler. Background Art

[0002] Pipeline transportation plays an increasingly important role in the development of my country's energy industry. Most industrial pipeline projects such as oil and natural gas use welded pipelines. In order to ensure the welding quality and operation safety of welded pipelines, pipeline projects must inspect the welds to detect whether there are welding defects such as cold welding, leaking welding, and scars in the welding parts. The commonly used pipeline weld inspection method is to use a non-X-ray pipeline crawler; the working principle of this type of crawler is: the X-ray is placed in the center of the pipeline to be tested, and a film is arranged at the weld. The X-ray passes through the weld to the film, which will make the film evenly sensitive. If there are defects such as cracks, holes, and slag inclusions, dark shadows will be displayed on the film. This method is used to detect the size and shape of the defects.

[0003] The existing invention patent document with authorization announcement number CN220228338U discloses an X-ray flaw detection pipeline crawler, which has the advantages of all-round coverage scanning, maintaining stability and preventing slipping, wherein stability is ensured by expanding the limiting wheel to fit the inner wall of the pipeline, and in actual flaw detection, it is often necessary to inspect pipelines of different diameters. However, when the above scheme is used, due to the fixed length of the rotating plate connected to the limiting wheel, it cannot adapt to pipelines of different diameters, resulting in certain limitations in its use. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an X-ray pipe crawler to solve the problem that in actual flaw detection, it is often necessary to perform flaw detection on pipes of different diameters. However, when the above scheme is used, the length of the rotating plate connected to the limiting wheel is fixed and cannot be adapted to pipes of different diameters, resulting in certain limitations in its use.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides an X-ray pipeline crawler, comprising a vehicle body, an auxiliary component and an adjustment component, wherein the auxiliary component is arranged on the vehicle body, the adjustment component is arranged on the auxiliary component, and an X-ray flaw detector is arranged on the adjustment component; The auxiliary component includes a box body arranged on the top of the vehicle body, the inner cavity of the box body is provided with a double-axis motor, and the two output ends of the double-axis motor are provided with screws, the inner cavity of the box body is provided with two limit rods located on both sides of the double-axis motor, and the two screws are screwed with two movable plates, and the two movable plates are slidably fitted into the surfaces of the two limit rods, the inner cavity of the box body is slidably provided with a movable column that penetrates and extends to the outside of the box body, the movable column is rotatably connected to a connecting plate at one end of the inner cavity of the box body, and the other end of the connecting plate is rotatably connected to the movable plate, the inner cavity of the movable column is slidably provided with a connecting column that penetrates and extends to the outside of the movable column, the connecting column is located at one end of the inner cavity of the movable column and is provided with a slider, a spring is provided between the slider and the inner cavity wall of the movable column, and a limiting wheel is provided at one end of the connecting column located outside the movable column.

[0006] As a preferred technical solution of the present invention, the other end of the screw is rotatably connected to the inner cavity wall of the box body, and the surface of the screw is provided with two sections of threads in opposite directions.

[0007] As a preferred technical solution of the present invention, the number of the movable columns is four, and one end of the four movable columns located in the inner cavity of the box body is rotatably connected to two connecting plates.

[0008] As a preferred technical solution of the present invention, the width of the connecting column is smaller than the diameter of the slider, the slider is a cylindrical structure, and the surface of the slider is slidably fitted with the inner cavity surface of the movable column.

[0009] As a preferred technical solution of the present invention, the adjustment component includes an electric turntable arranged on the top of the box, an electric screw is arranged on the top of the electric turntable, the output end of the electric screw is connected to the installation frame, the X-ray flaw detector is rotatably set in a recess of the installation frame, and a connecting block is arranged between the X-ray flaw detector and the electric turntable.

[0010] As a preferred technical solution of the present invention, the surfaces of the X-ray flaw detector and the electric turntable on the opposite side are both provided with protrusions, and the two ends of the connecting block are rotatably connected to the two protrusions respectively.

[0011] As a preferred technical solution of the present invention, a protective cover is provided on the surface of the X-ray flaw detector.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The X-ray pipeline crawler, through the arrangement of the auxiliary components and the adjustment components, when in use, drives the device as a whole to perform flaw detection in the pipeline when the vehicle body is working, wherein the auxiliary components can enable the X-ray flaw detector to perform all-round coverage scanning to improve the accuracy of flaw detection, and under the action of the auxiliary components, the limiting wheels on both sides can be fitted with the pipe wall of the pipeline, thereby ensuring the stability of the vehicle body during the movement, and at the same time, by moving the limiting wheels on both sides to the opposite side or the separated side, the spacing between the limiting wheels on both sides can be adjusted, thereby ensuring that the limiting wheels on both sides can fit with the pipe walls of different pipe diameters, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the box body of the present invention; Figure 3 It is a cross-sectional view of the movable column of the present invention.

[0014] In the figure: 1. vehicle body; 2. box body; 3. double-axis motor; 4. screw; 5. limit rod; 6. movable plate; 7. movable column; 8. connecting plate; 9. connecting column; 10. slider; 11. spring; 12. limit wheel; 13. electric turntable; 14. electric screw; 15. installation frame; 16. X-ray flaw detector; 17. connecting block; 18. protective cover. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0016] In the drawings, the same reference numerals all refer to the same components.

[0017] like Figure 1-3 As shown, the present invention provides an X-ray pipeline crawler, including a vehicle body 1, an auxiliary component and an adjustment component, wherein the auxiliary component is arranged on the vehicle body 1, wherein the auxiliary component improves the stability of the vehicle body 1 during movement, and the auxiliary component can be adjusted to adapt to pipelines of different diameters, and the auxiliary component and the adjustment component are arranged on the auxiliary component, and an X-ray flaw detector 16 is arranged on the adjustment component, and through the setting of the adjustment component, the X-ray flaw detector 16 can perform all-round flaw detection, thereby improving accuracy.

[0018] A protective cover 18 is disposed on the surface of the X-ray flaw detector 16 , wherein the protection of the flaw detection part of the X-ray flaw detector 16 is achieved by disposing the protective cover 18 .

[0019] Furthermore, the auxiliary component includes a box body 2 arranged on the top of the vehicle body 1, and the inner cavity of the box body 2 is provided with a dual-axis motor 3, and the two output ends of the dual-axis motor 3 are provided with screws 4, wherein the other end of the screw 4 is rotatably connected to the inner cavity wall of the box body 2, and the surface of the screw 4 is provided with two sections of threads in opposite directions, and through the setting of the dual-axis motor 3, the screws 4 on both sides can be driven to rotate synchronously at the same time, and the inner cavity of the box body 2 is provided with two limit rods 5 located on both sides of the dual-axis motor 3, and two movable plates 6 are screwed on the two screws 4, and the two movable plates 6 on the same screw 4 are respectively screwed on the two opposite threaded surfaces of the surface of the screw 4, and the two movable plates 6 are slidably fitted on the surfaces of the two limit rods 5.

[0020] The two limiting rods 5 limit the position of the screw 4 so that when it rotates, it will only drive the movable plate 6 to move horizontally. Under the action of the opposite threads on the surface of the screw 4, when the screw 4 rotates, the two movable plates 6 on the same screw 4 will move synchronously to the opposite side or away from each other.

[0021] The inner cavity of the box body 2 is slidably provided with movable columns 7 that penetrate through and extend to the outside of the box body 2, wherein the number of movable columns 7 is four, and one end of the four movable columns 7 located in the inner cavity of the box body 2 is rotatably connected to two connecting plates 8, and the other ends of the eight connecting plates 8 are rotatably connected to one end of the four movable plates 6 respectively.

[0022] When the two movable plates 6 move synchronously toward the opposite side or away from each other, the connecting plate 8 with rotational connection at both ends will drive the movable column 7 to slide horizontally on the side wall of the box body 2, and the two movable columns 7 located on different side walls will also move synchronously toward the opposite side or away from each other.

[0023] The inner cavity of the movable column 7 is slidably provided with a connecting column 9 that penetrates and extends to the outside of the movable column 7. A slider 10 is provided at one end of the connecting column 9 located in the inner cavity of the movable column 7. The width of the connecting column 9 is smaller than the diameter of the slider 10. The slider 10 is a cylindrical structure, and the surface of the slider 10 slides and fits with the inner cavity surface of the movable column 7. Under the action of the slider 10, the moving range of the connecting column 9 is limited so that it cannot be completely moved from the inner cavity of the movable column 7. A spring 11 is provided between the slider 10 and the inner cavity wall of the movable column 7. A limiting wheel 12 is provided at one end of the connecting column 9 located outside the movable column 7, wherein the limiting wheels 12 on both sides fit with the pipe wall, thereby ensuring the stability of the vehicle body 1 during movement, and under the action of the spring 11, the limiting wheels 12 on both sides can always fit tightly with the pipe walls on both sides of the pipe.

[0024] Furthermore, the adjustment component includes an electric turntable 13 arranged on the top of the box body 2, an electric screw 14 is arranged on the top of the electric turntable 13, the output end of the electric screw 14 is connected to the mounting frame 15, the X-ray flaw detector 16 is rotatably arranged in the recess of the mounting frame 15, and a connecting block 17 is arranged between the X-ray flaw detector 16 and the electric turntable 13, wherein the X-ray flaw detector 16 and the electric turntable 13 are provided with protrusions on the opposite side surfaces, and the two ends of the connecting block 17 are respectively rotatably connected to the two protrusions, wherein the two protrusions are arranged, and the X-ray flaw detector 16 and the electric turntable 13 are connected under the action of the connecting block 17.

[0025] By setting up the electric turntable 13 and under the action of the electric turntable 13, the X-ray flaw detector 16 is driven to rotate horizontally, so as to adjust the flaw detection direction. By the joint action of the electric lead screw 14, the mounting frame 15 and the connecting block 17, the X-ray flaw detector 16 can be adjusted in the vertical direction, so as to achieve all-round coverage scanning.

[0026] The present invention is an X-ray pipeline crawler, which works through a vehicle body 1 to drive the entire device into a pipeline. At this time, an X-ray flaw detector 16 works to realize exploration scanning of the pipeline, and an electric turntable 13 and an electric lead screw 14 work, wherein the electric turntable 13 can drive the X-ray flaw detector 16 to rotate horizontally, and when the electric lead screw 14 works, it drives the installation frame 15 to move vertically up and down. Since the X-ray flaw detector 16 is rotatably set on the installation frame 15, and two sections of connecting blocks 17 that are both rotatably connected are connected between the X-ray flaw detector 16 and the electric turntable 13, the X-ray flaw detector 16 can realize angle adjustment in the vertical direction, thereby covering scanning in all directions.

[0027] The limiting wheels 12 on both sides fit with the pipe wall to ensure the stability of the vehicle body 1 during its movement. When necessary, the dual-axis motor 3 can be used to drive the two screws 4 to rotate. At this time, under the action of the opposite threads and the limiting rod 5, the two movable plates 6 located on the same screw 4 will move synchronously to the opposite side or the separated side. Then, under the action of the connecting plate 8, the two opposite movable columns 7 on both sides of the vehicle body 1 will move to the opposite side or the separated side, and further drive the limiting wheels 12 on both sides to move to the opposite side or the separated side. The spacing between the limiting wheels 12 on both sides can be adjusted to ensure that the limiting wheels 12 on both sides can fit with the pipe walls of different diameters. At the same time, under the action of the spring 11, the tightness of the fit can be guaranteed. By adjusting the spacing between the limiting wheels 12 on both sides, pipes of different diameters can be adapted, thereby improving practicality.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An X-ray pipeline crawler, characterized in that: It comprises a vehicle body (1), an auxiliary component and an adjustment component, wherein the auxiliary component is arranged on the vehicle body (1), the adjustment component is arranged on the auxiliary component, and an X-ray flaw detector (16) is arranged on the adjustment component; The auxiliary component comprises a box (2) arranged on the top of the vehicle body (1), the inner cavity of the box (2) is provided with a double-axis motor (3), the two output ends of the double-axis motor (3) are provided with screws (4), the inner cavity of the box (2) is provided with two limit rods (5) located on both sides of the double-axis motor (3), the two screw rods (4) are screwed with two movable plates (6), the two movable plates (6) are slidably fitted on the surfaces of the two limit rods (5), and the inner cavity of the box (2) is slidably provided with a A movable column (7), wherein one end of the movable column (7) located in the inner cavity of the box body (2) is rotatably connected to a connecting plate (8), and the other end of the connecting plate (8) is rotatably connected to the movable plate (6). The inner cavity of the movable column (7) is slidably provided with a connecting column (9) penetrating through and extending to the outside of the movable column (7). A slider (10) is provided at one end of the connecting column (9) located in the inner cavity of the movable column (7), and a spring (11) is provided between the slider (10) and the inner cavity wall of the movable column (7). A limit wheel (12) is provided at one end of the connecting column (9) located outside the movable column (7).

2. The X-ray pipeline crawler according to claim 1, characterized in that: The other end of the screw rod (4) is rotatably connected to the inner cavity wall of the box body (2), and the surface of the screw rod (4) is provided with two sections of threads in opposite directions.

3. The X-ray pipeline crawler according to claim 1, characterized in that: The number of the movable columns (7) is four, and one end of the four movable columns (7) located in the inner cavity of the box body (2) is rotatably connected to two connecting plates (8).

4. The X-ray pipeline crawler according to claim 1, characterized in that: The width of the connecting column (9) is smaller than the diameter of the slider (10); the slider (10) is a cylindrical structure, and the surface of the slider (10) is slidably fitted with the inner cavity surface of the movable column (7).

5. The X-ray pipeline crawler according to claim 1, characterized in that: The adjustment assembly comprises an electric turntable (13) arranged on the top of the box body (2), an electric lead screw (14) is arranged on the top of the electric turntable (13), an output end of the electric lead screw (14) is connected to a mounting frame (15), the X-ray flaw detector (16) is rotatably arranged in a recess of the mounting frame (15), and a connecting block (17) is arranged between the X-ray flaw detector (16) and the electric turntable (13).

6. The X-ray pipeline crawler according to claim 5, characterized in that: The surfaces of the X-ray flaw detector (16) and the electric turntable (13) on one side opposite to each other are both provided with protrusions, and the two ends of the connection block (17) are respectively rotatably connected to the two protrusions.

7. The X-ray pipeline crawler according to claim 1, characterized in that: A protective cover (18) is provided on the surface of the X-ray flaw detector (16).

Images