X-ray flaw detector for pipes

Abstract

The application relates to the technical field of pipeline detection, and discloses an X-ray flaw detection device for pipelines, which comprises a circular plate, first bending plates, supports, first rotating shafts, driving wheels, driven wheels, second rotating shafts, second bending plates and X-ray generating devices. When in use, the two first bending plates slide along the radial direction of the circular plate under the drive of external force, and then drive the multiple supports to move close to or apart from each other. Finally, the four driving wheels and the multiple driven wheels are driven to move close to or apart from each other, so that the four driving wheels and the multiple driven wheels can enter the pipeline and abut against the inner wall of the pipeline. After the two first rotating shafts rotate relative to the two supports under the drive of external force, the four driving wheels are driven to rotate. Under the support of the multiple driven wheels, the device can walk along the inner wall of the pipeline. After the second rotating shaft rotates relative to the circular plate under the drive of external force, the second bending plate is driven to rotate, and finally the X-ray generating device is driven to rotate, so that the entire circumference of the pipeline can be detected.

Description

Technical Field

[0001] This application relates to the field of pipeline inspection technology, and in particular to an X-ray flaw detection device for pipelines. Background Technology

[0002] A related technology (publication number: CN218938171U) discloses an X-ray flaw detector for pipeline flaw detection, including a housing and a detector. Two connecting shafts are rotatably connected to the inner walls of both sides of the housing, with a traveling wheel fixedly installed at both ends of each shaft. Vertical plates are fixedly installed on both sides of the top of the housing, and a common mounting box is fixedly installed on the top of the two vertical plates. A sliding plate is slidably installed inside the mounting box, and T-shaped plates are fixedly installed on both sides of the top of the sliding plate. Two horizontal shafts are rotatably connected to the sides of the two T-shaped plates that are close to each other, with positioning wheels fixedly installed at both ends of each horizontal shaft. Mounting holes are provided on both vertical plates, and the detector is fixedly installed in the two mounting holes.

[0003] In the process of implementing the technical solution disclosed herein, it was found that the above technical solution has at least the following problems: This X-ray flaw detector for pipeline inspection has multiple traveling wheels and multiple positioning wheels that abut against the inner wall of the pipeline, allowing the device to move inside the pipeline and inspect its inner wall for flaws. However, because the detector is fixed in two mounting holes and the device can only move in a straight line inside the pipeline, it cannot complete the inspection of the entire circumference of the pipeline.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0006] This disclosure provides an X-ray flaw detection device for pipelines, which can inspect the entire circumference of the pipeline.

[0007] In some technical solutions, the X-ray flaw detection device for pipelines includes: a circular plate with two strip-shaped holes opened along its radial direction, the two strip-shaped holes being distributed at 180° intervals; a first bending plate passing through the two strip-shaped holes respectively, and slidably mounted on the circular plate, both of the first bending plates sliding along the radial direction of the circular plate; supports evenly mounted on the two first bending plates respectively, and multiple supports mounted on the same first bending plate being distributed opposite to each other in pairs; a first rotating shaft rotatably mounted on multiple sets of oppositely distributed supports; and a drive wheel mounted on both ends of two of the multiple first rotating shafts respectively. Two of the plurality of first rotating shafts are respectively adjacent to two of the first bending plates; driven wheels are respectively installed at both ends of the remaining first rotating shafts; a second rotating shaft is rotatably installed at the center of the circular plate; a second bending plate is installed on the second rotating shaft; an X-ray generating device is installed on the second bending plate along the radial direction of the circular plate; wherein, the plurality of first bending plates can be controlled to slide to drive the plurality of first bending plates to move closer or separate from each other; two of the plurality of first rotating shafts can be controlled to rotate to drive the four driving wheels to rotate; the second rotating shaft can be controlled to rotate to drive the second bending plate to rotate.

[0008] Optionally, it further includes: a first hollow shaft rotatably mounted at the center of the circular plate; a first gear fitted onto the outer wall of the first hollow shaft, the first gear including bevel teeth and spur teeth distributed circumferentially thereon; a spline shaft rotatably mounted on two of the first bent plates along the radial direction of the circular plate; a spline sleeve slidably fitted onto two of the spline shafts, and both rotatably mounted on the circular plate; a first bevel gear mounted on the outer wall of two of the spline sleeves, and both meshing with the bevel teeth; a second bevel gear mounted on two of the spline shafts; a third bevel gear mounted on two of the plurality of first rotating shafts, and meshing with two of the second bevel gears; a support rod mounted on the circular plate along the axial direction of the circular plate; a mounting plate mounted on the support rod; a first motor mounted on the mounting plate; and a first spur gear mounted on the rotating end of the first motor, and meshing with the spur teeth.

[0009] Optionally, it further includes: a bearing housing, mounted on the circular plate and sleeved on the first hollow shaft; and a first bearing, mounted between the bearing housing and the first hollow shaft.

[0010] Optionally, it also includes: a first seated bearing, which is respectively fitted into the two splined sleeves and both are mounted on the circular plate.

[0011] Optionally, it further includes: a second hollow shaft rotatably mounted inside the first hollow shaft; a turntable fitted onto the outer wall of the second hollow shaft; a connecting rod rotatably mounted between the turntable and the two first bending plates; a second motor mounted on the mounting plate; a second spur gear mounted on the rotating end of the second motor; and a third spur gear mounted on the outer wall of the second hollow shaft and meshing with the second spur gear; wherein the second rotating shaft is rotatably mounted inside the second hollow shaft.

[0012] Optionally, it further includes a second bearing, installed between the first hollow shaft and the second hollow shaft.

[0013] Optionally, it also includes a third bearing, installed between the second hollow shaft and the second rotating shaft.

[0014] Optionally, it further includes: a third motor mounted on the mounting plate; and a coupling mounted between the rotating end of the third motor and the second shaft.

[0015] Optionally, it further includes: guide rails, evenly installed on the circular plate and located on both sides of each of the strip holes; sliders, respectively installed on the multiple guide rails, with each slider on both sides of each strip hole connected to the bending plate inside it.

[0016] Optionally, it further includes: a second mounted bearing, which is respectively fitted onto a plurality of the first rotating shafts and respectively mounted on a plurality of the supports.

[0017] The X-ray flaw detection device for pipelines provided in this disclosure can achieve the following technical effects: This disclosure provides an X-ray flaw detection device for pipelines, comprising a circular plate, a first bent plate, supports, a first rotating shaft, a driving wheel, a driven wheel, a second rotating shaft, a second bent plate, and an X-ray generating device. The circular plate includes two strip-shaped holes opened radially therefrom, spaced 180° apart, for each of the two first bent plates to pass through. The first bent plates pass through the two strip-shaped holes and are slidably mounted on the circular plate, both sliding radially. Supports are evenly mounted on the two first bent plates, with multiple supports mounted on the same first bent plate arranged in pairs opposite each other, each supporting a rotatable first rotating shaft. Each first rotating shaft is rotatably mounted on multiple sets of oppositely distributed supports, allowing it to rotate relative to the pairs of supports. Driving wheels are mounted at both ends of two of the multiple first rotating shafts, with the two first rotating shafts adjacent to the two first bent plates, resulting in a rectangular arrangement of the four driving wheels. Driven wheels are installed at both ends of the remaining first rotating shafts. The four driving wheels and multiple driven wheels are used to abut against the inner wall of the pipe. A second rotating shaft is rotatably mounted at the center of a circular plate, allowing it to rotate relative to the plate. A second bending plate is mounted on the second rotating shaft to support and mount an X-ray generating device. The X-ray generating device is mounted on the second bending plate along the radial direction of the circular plate to generate X-rays for pipe inspection. Multiple first bending plates can be controlled to slide, causing them to move closer together or separate. Two of the first rotating shafts can be controlled to rotate, driving the four driving wheels to rotate. The second rotating shaft can be controlled to rotate, driving the second bending plate to rotate.

[0018] In operation, driven by external force, the two first bending plates slide radially along the circular plate, causing multiple supports to move closer together or disperse. This, in turn, causes the four driving wheels and multiple driven wheels to move closer together or disperse, allowing them to enter the pipe and abut against its inner wall. Driven by external force, the two first rotating shafts rotate relative to the two supports, causing the four driving wheels to rotate. Supported by the multiple driven wheels, the device can then travel along the inner wall of the pipe. Driven by external force, the second rotating shaft rotates relative to the circular plate, causing the second bending plate to rotate, ultimately rotating the X-ray generating device, thus enabling the detection of the entire circumference of the pipe.

[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a cross-sectional structural schematic diagram of an X-ray flaw detection device for pipelines provided in an embodiment of this disclosure; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1 Enlarged structural diagram at point B; Figure 4 yes Figure 1 Enlarged structural diagram at point C; Figure 5 This is a front view structural schematic diagram of an X-ray flaw detection device for pipelines provided in an embodiment of this disclosure.

[0021] Figure label: 1. Circular plate; 2. First bending plate; 3. Support; 4. First rotating shaft; 5. Driving wheel; 6. Driven wheel; 7. Second rotating shaft; 8. Second bending plate; 9. X-ray generating device; 10. First hollow shaft; 11. First gear; 12. Splined shaft; 13. Splined sleeve; 14. First bevel gear; 15. Second bevel gear; 16. Third bevel gear; 17. Support rod; 18. Mounting plate; 19. First motor; 20. First spur gear; 21. Second hollow shaft; 22. Turntable; 23. Connecting rod; 24. Second motor; 25. Second spur gear; 26. Third spur gear; 27. Third motor; 28. Coupling; 29. ​​Guide rail; 30. Slider. Detailed Implementation

[0022] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0023] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0025] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0026] Unless otherwise stated, the term "multiple" means two or more.

[0027] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0028] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0030] Combination Figures 1 to 5As shown, this disclosure provides an X-ray flaw detection device for pipelines, including a circular plate 1, a first bent plate 2, supports 3, a first rotating shaft 4, a driving wheel 5, a driven wheel 6, a second rotating shaft 7, a second bent plate 8, and an X-ray generating device 9. The circular plate 1 includes two strip-shaped holes opened along its radial direction, the two strip-shaped holes being spaced 180° apart, each for passing through one of the two first bent plates 2. The first bent plates 2 pass through the two strip-shaped holes respectively and are slidably mounted on the circular plate 1, both of which slide along the radial direction of the circular plate 1. Supports 3 are evenly mounted on the two first bent plates 2, and multiple supports 3 mounted on the same first bent plate 2 are distributed in pairs opposite each other, respectively supporting the rotatable first rotating shaft 4. The first rotating shaft 4 is rotatably mounted on multiple sets of oppositely distributed supports 3, and can rotate relative to the groups of supports 3. The driving wheels 5 are respectively installed at both ends of two of the multiple first rotating shafts 4, and the two first rotating shafts 4 are respectively adjacent to two first bending plates 2, so that the four driving wheels 5 are arranged in a rectangular distribution. The driven wheels 6 are respectively installed at both ends of the remaining first rotating shafts 4. The four driving wheels 5 and the multiple driven wheels 6 are used to abut against the inner wall of the pipe. The second rotating shaft 7 is rotatably installed at the center of the circular plate 1 and can rotate relative to the circular plate 1. The second bending plate 8 is installed on the second rotating shaft 7 and is used to support the installation of the X-ray generating device 9. The X-ray generating device 9 is installed on the second bending plate 8 along the radial direction of the circular plate 1 and is used to generate X-rays for pipe flaw detection. The multiple first bending plates 2 can be controlled to slide, so as to drive the multiple first bending plates 2 to move closer or further apart. Two of the multiple first rotating shafts 4 can be controlled to rotate, so as to drive the four driving wheels 5 to rotate. The second rotating shaft 7 can be controlled to rotate, so as to drive the second bending plate 8 to rotate.

[0031] This disclosure provides an X-ray flaw detection device for pipelines. Driven by an external force, two first bending plates 2 slide along the radial direction of a circular plate 1, causing multiple supports 3 to move closer together or disperse. This ultimately causes four driving wheels 5 and multiple driven wheels 6 to move closer together or disperse, allowing them to enter the pipeline and abut against the inner wall. Driven by an external force, two first rotating shafts 4 rotate relative to the two supports 3, causing the four driving wheels 5 to rotate. Supported by the multiple driven wheels 6, the device can travel along the inner wall of the pipeline. Driven by an external force, a second rotating shaft 7 rotates relative to the circular plate 1, causing a second bending plate 8 to rotate, ultimately rotating an X-ray generating device 9. Therefore, the entire circumference of the pipeline can be inspected.

[0032] Optionally, combined Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the assembly also includes a first hollow shaft 10, a first gear 11, a splined shaft 12, a splined sleeve 13, a first bevel gear 14, a second bevel gear 15, a third bevel gear 16, a support rod 17, a mounting plate 18, a first motor 19, and a first spur gear 20. The first hollow shaft 10 is rotatably mounted at the center of the circular plate 1 and can rotate relative to the circular plate 1. The first gear 11 is fitted onto the outer wall of the first hollow shaft and includes bevel teeth and spur teeth distributed circumferentially thereafter. The splined shaft 12 is rotatably mounted on two first bent plates 2 along the radial direction of the circular plate 1 and can rotate relative to the two first bent plates 2. The splined sleeve 13 is slidably fitted onto the two splined shafts 12 and is rotatably mounted on the circular plate 1, both used to transmit torque. The first bevel gear 14 is respectively mounted on the outer wall of the two splined sleeves 13 and meshes with the bevel teeth, jointly transmitting driving force and changing the direction of the force. The second bevel gear 15 is mounted on two splined shafts 12 and rotates under the drive of the two splined shafts 12. The third bevel gear 16 is mounted on two of the multiple first rotating shafts 4 and drives the two first rotating shafts 4 to rotate. The two third bevel gears 16 mesh with the two second bevel gears 15 respectively, transmitting driving force and changing the direction of the force. The support rod 17 is mounted on the circular plate 1 along the axial direction of the circular plate 1 to support the mounting plate 18. The mounting plate 18 is mounted on the support rod 17 to support the mounting motor. The first motor 19 is mounted on the mounting plate 18 to provide driving force. The first spur gear 20 is mounted on the rotating end of the first motor 19 and meshes with the spur gear to jointly transmit driving force.

[0033] In this embodiment, the first motor 19 is controlled to operate, and the first gear 11 rotates due to the meshing of the first spur gear 20 and the spur gear. Then, the two splined sleeves 13 rotate due to the meshing of the bevel gears and the two first bevel gears 14, thereby driving the two splined shafts 12 to rotate. Subsequently, the two first rotating shafts 4 rotate due to the meshing of the two second bevel gears 15 and the two third bevel gears 16. Finally, the four drive wheels 5 are driven to rotate, realizing the automatic walking function of the device.

[0034] Optionally, combined Figures 1 to 5 As shown, it also includes a bearing housing and a first bearing. The bearing housing is mounted on the circular plate 1 and sleeved on the first hollow shaft 10. The first bearing is installed between the bearing housing and the first hollow shaft 10.

[0035] In this embodiment, the bearing housing is used to support and mount the first bearing, and to limit the position of the first bearing. The first bearing is used to support and mount the first hollow shaft 10, reduce the frictional force on the first hollow shaft 10, and improve the rotational accuracy of the first hollow shaft 10.

[0036] Optionally, combined Figure 1 andFigure 2 As shown, it also includes a first mounted bearing. The first mounted bearing is respectively fitted into two splined sleeves 13, and both are mounted on the circular plate 1.

[0037] In this embodiment of the disclosure, the first seated bearing is used to enable the spline sleeve 13 to rotate only about its axis and not slide in its axial direction.

[0038] Optionally, combined Figure 1 , Figure 2 and Figure 5 As shown, the assembly also includes a second hollow shaft 21, a turntable 22, a connecting rod 23, a second motor 24, a second spur gear 25, and a third spur gear 26. The second hollow shaft 21 is rotatably mounted inside the first hollow shaft 10 and can rotate relative to the first hollow shaft 10. The turntable 22 is fitted onto the outer wall of the second hollow shaft 21 and rotates under the drive of the second hollow shaft 21. The connecting rod 23 is rotatably mounted between the turntable 22 and the two first bending plates 2, and can rotate relative to the turntable 22 and the two first bending plates 2, respectively. The second motor 24 is mounted on the mounting plate 18 and provides driving force. The second spur gear 25 is mounted on the rotating end of the second motor 24 and rotates under the drive of the second motor 24. The third spur gear 26 is mounted on the outer wall of the second hollow shaft 21 and drives the second hollow shaft 21 to rotate. The third spur gear 26 meshes with the second spur gear 25 to jointly transmit driving force. The second rotating shaft 7 is rotatably mounted inside the second hollow shaft 21.

[0039] In this embodiment, the second motor 24 is controlled to operate, and under the meshing action of the second spur gear 25 and the third spur gear 26, the second hollow shaft 21 can rotate, thereby driving the turntable 22 to rotate. Then, under the pulling or pushing of the two connecting rods 23, the two bending plates can move closer to each other or disperse, ultimately realizing the function of the four driving wheels 5 and the multiple driven wheels 6 automatically moving closer to each other or dispersing.

[0040] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a second bearing. The second bearing is installed between the first hollow shaft 10 and the second hollow shaft 21.

[0041] In this embodiment of the disclosure, the second bearing is used to reduce the friction between the first hollow shaft 10 and the second hollow shaft 21, so that the first hollow shaft 10 and the second hollow shaft 21 can rotate relative to each other.

[0042] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a third bearing. The third bearing is installed between the second hollow shaft 21 and the second rotating shaft 7.

[0043] In this embodiment of the disclosure, the third bearing is used to reduce the friction between the second hollow shaft 21 and the second rotating shaft 7, so that the second hollow shaft 21 and the second rotating shaft 7 can rotate relative to each other.

[0044] Optionally, combined Figure 1 , Figure 2 and Figure 5 As shown, it also includes a third motor 27 and a coupling 28. The third motor 27 is mounted on the mounting plate 18 and is used to provide driving force. The coupling 28 is mounted between the rotating end of the third motor 27 and the second shaft 7 and is used to transmit driving force.

[0045] In this embodiment, the third motor 27 is controlled to operate, and through the coupling 28, the second rotating shaft 7 can be driven to rotate, ultimately realizing the function of automatic rotation of the X-ray generating device 9.

[0046] Optionally, combined Figure 1 and Figure 5 As shown, it also includes guide rails 29 and sliders 30. The guide rails 29 are evenly installed on the circular plate 1 and are located on both sides of each strip hole. The sliders 30 are installed on multiple guide rails 29, and the sliders 30 on both sides of each strip hole are connected to the bent plates inside them.

[0047] In this embodiment of the disclosure, multiple guide rails 29 and multiple sliders 30 together serve as guide supports, so that the two first bending plates 2 can only move in the radial direction of the circular plate 1.

[0048] Optionally, combined Figure 1 and Figure 4 As shown, it also includes a second mounted bearing. The second mounted bearing is respectively fitted onto multiple first rotating shafts 4 and respectively mounted on multiple supports 3.

[0049] In this embodiment of the disclosure, a plurality of second bearings with mounting brackets are used to reduce the friction between a plurality of first shafts 4 and a plurality of supports 3, thereby reducing wear and damage.

[0050] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An X-ray flaw detection device for pipelines, characterized in that, include: A circular plate includes two strip-shaped holes opened along its radial direction, the two strip-shaped holes being distributed at 180° intervals; The first bending plate passes through the two strip holes respectively and can be slidably mounted on the circular plate. Both first bending plates slide along the radial direction of the circular plate. The supports are evenly installed on the two first bending plates, and the multiple supports installed on the same first bending plate are distributed in pairs opposite to each other. The first rotating shaft is rotatably mounted on two of the supports that are distributed in opposite directions. The drive wheel is installed at both ends of two of the plurality of first rotating shafts, and the two of the plurality of first rotating shafts are respectively adjacent to two first bending plates; Driven wheels are respectively installed at both ends of the remaining first rotating shafts; The second rotating shaft is rotatably mounted at the center of the circular plate; The second bending plate is installed on the second rotating shaft; An X-ray generating device is mounted on the second bent plate along the radial direction of the circular plate; The plurality of first bending plates can be controlled to slide, thereby causing the plurality of first bending plates to move closer together or separate; two of the plurality of first rotating shafts can be controlled to rotate, thereby causing the four drive wheels to rotate; the second rotating shaft can be controlled to rotate, thereby causing the second bending plate to rotate.

2. The X-ray flaw detection device for pipelines according to claim 1, characterized in that, Also includes: The first hollow shaft is rotatably mounted at the center of the circular plate; The first gear is fitted onto the outer wall of the first hollow shaft, and the first gear includes bevel teeth and straight teeth distributed along its circumference; The spline shaft is rotatably mounted on the two first bent plates along the radial direction of the circular plate. Spline sleeves can be slidably fitted onto the two spline shafts respectively, and both can be rotatably mounted on the circular plate; The first bevel gear is installed on the outer wall of each of the two splined sleeves and meshes with the bevel gear. The second bevel gear is respectively installed on the two splined shafts; The third bevel gear is installed on two of the plurality of first rotating shafts and meshes with two of the second bevel gears respectively; A support rod is installed on the circular plate along the axial direction of the circular plate; Mounting plate, installed on the support rod; The first motor is mounted on the mounting plate; The first spur gear is installed on the rotating end of the first motor and meshes with the spur gear.

3. The X-ray flaw detection device for pipelines according to claim 2, characterized in that, Also includes: A bearing housing is mounted on the circular plate and sleeved on the first hollow shaft; The first bearing is installed between the bearing housing and the first hollow shaft.

4. The X-ray flaw detection device for pipelines according to claim 2, characterized in that, Also includes: The first bearing with a mounting seat is respectively fitted into the two splined sleeves and is mounted on the circular plate.

5. The X-ray flaw detection device for pipelines according to claim 2, characterized in that, Also includes: The second hollow shaft is rotatably mounted inside the first hollow shaft; The turntable is fitted onto the outer wall of the second hollow shaft; The connecting rods are rotatably mounted between the turntable and the two first bending plates; The second motor is mounted on the mounting plate; The second spur gear is installed on the rotating end of the second motor; The third spur gear is installed on the outer wall of the second hollow shaft and meshes with the second spur gear; The second rotating shaft is rotatably mounted inside the second hollow shaft.

6. The X-ray flaw detection device for pipelines according to claim 5, characterized in that, Also includes: The second bearing is installed between the first hollow shaft and the second hollow shaft.

7. The X-ray flaw detection device for pipelines according to claim 5, characterized in that, Also includes: The third bearing is installed between the second hollow shaft and the second rotating shaft.

8. The X-ray flaw detection device for pipelines according to claim 5, characterized in that, Also includes: The third motor is mounted on the mounting plate; A coupling is installed between the rotating end of the third motor and the second shaft.

9. A pipeline X-ray flaw detection device according to any one of claims 1 to 7, characterized in that, Also includes: Guide rails are evenly installed on the circular plate and are located on both sides of each of the strip holes; The sliders are respectively installed on the multiple guide rails, and the sliders on both sides of each strip hole are connected to the bending plate inside them.

10. A pipeline X-ray flaw detection device according to any one of claims 1 to 7, characterized in that, Also includes: The second bearing is mounted on multiple first shafts and installed on multiple supports.

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