An automatic pipeline DR inspection device and system

Abstract

This application provides an automatic DR inspection device and system for pipelines, belonging to the field of pipeline digital radiographic inspection technology. It includes a frame, a clamping mechanism, a rotary connection mechanism, and an irradiation mechanism. A first driving device drives the clamping seat to move and clamp the pipeline, thereby installing the entire device onto the outside of the pipeline via the clamping mechanism. A transmission ring is rotatably connected to the frame, and the irradiation mechanism is mounted on the transmission ring so that the irradiation mechanism rotates synchronously with the transmission ring. A second driving device drives the transmission ring to rotate relative to the pipeline, thereby causing the irradiation mechanism to rotate relative to the pipeline. This allows the irradiation mechanism to automatically inspect the pipeline in the circumferential direction, improving the inspection efficiency. The clamping mechanism clamps the pipeline, improving the coaxiality between the pipeline and the transmission ring, and thus improving the perpendicularity of the irradiation mechanism to the pipeline when rotating circumferentially around it, which is beneficial for improving the inspection quality of the irradiation mechanism.

Description

Technical Field

[0001] This application belongs to the field of pipeline digital radiographic inspection technology, specifically relating to an automatic pipeline DR inspection device and system. Background Technology

[0002] Pipeline flaw detection is a non-destructive testing technique used to assess the integrity and safety of pipelines. Its main purpose is to identify defects such as cracks, corrosion, and deformation in pipeline materials using various testing methods (such as ultrasonic testing, radiographic testing, and magnetic particle testing). These defects can affect the structural integrity of the pipeline, leading to leaks, ruptures, or other safety problems. Timely detection and repair of pipeline defects can prevent serious accidents such as pipeline leaks and explosions.

[0003] Currently, DR (Digital Radiography) inspection technology is commonly used to inspect pipelines after welding. DR technology can visually display the shape, size, and distribution of defects within the pipeline material structure. Especially in weld inspection, DR technology can efficiently detect weld defects, ensuring the welding quality of pipeline construction. However, existing pipeline weld DR inspection devices are difficult to stably fix to the outside of the pipeline, affecting the quality of DR inspection images. Sometimes, frequent manual adjustments to the device position are necessary to ensure smooth DR inspection, resulting in low inspection efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, a first aspect of the present invention provides an automatic pipeline DR inspection device.

[0006] A second aspect of the present invention provides an automatic pipeline DR inspection system.

[0007] In view of this, a pipeline automatic DR inspection device is provided according to a first aspect of the embodiments of this application, comprising:

[0008] frame;

[0009] The clamping mechanism is set on the side wall of the first side of the frame. The clamping mechanism includes a first driving device and a clamping seat. The clamping seat is slidably connected to the frame. The first driving device drives the clamping seat to move to clamp the pipe.

[0010] A rotary connection mechanism is mounted on a frame. The rotary connection mechanism includes a second drive device and a transmission ring. The transmission ring is circumferentially mounted around the outside of the pipe. The transmission ring is rotatably connected to the side wall of the second side of the frame. The second drive device drives the transmission ring to rotate relative to the pipe.

[0011] An irradiation mechanism is mounted on a transmission ring and rotates synchronously with the transmission ring to inspect the pipeline circumferentially.

[0012] In one feasible implementation, the rotary connection mechanism further includes:

[0013] Guide wheels are rotatably connected to the side wall of the second side of the frame. Several guide wheels are arranged circumferentially on the outside of the transmission ring to support the rotation of the transmission ring.

[0014] The gear is rotatably connected to the side wall of the second side of the frame, and the gear is connected to the output shaft of the second drive device; the second drive device is fixedly connected to the side wall of the first side of the frame.

[0015] The transmission ring has a first external tooth in its circumferential direction, and the gear has a second external tooth in its circumferential direction. The second external tooth meshes with the first external tooth to drive the transmission ring to rotate through the gear.

[0016] A limiting groove is provided on the outer wall of the guide wheel along the circumference, and the transmission ring rotates within the limiting groove.

[0017] In one feasible implementation, there are two clamping mechanisms, which are arranged radially along the transmission ring and symmetrically on the outside of the transmission ring.

[0018] The clamping mechanism also includes:

[0019] Mounting bracket, the mounting bracket is fixedly connected to the side wall of the first side of the frame;

[0020] The guide rod has a first end that is slidably connected to the mounting bracket and a second end that is fixedly connected to the clamping seat.

[0021] A transmission screw, the first end of which is connected to the output end of the first drive device;

[0022] The screw sleeve is threadedly connected to the outside of the transmission screw. The first end of the screw sleeve is slidably connected to the mounting bracket, and the second end of the screw sleeve is fixedly connected to the clamping seat.

[0023] In one feasible implementation, the clamping seat includes:

[0024] The transmission seat is fixedly connected to the second end of the guide rod, and the transmission seat is fixedly connected to the second end of the threaded sleeve.

[0025] Two clamping plates are respectively set at both ends of the transmission seat. The clamping plates are arranged at an angle to the center line of the transmission seat, and a V-shaped clamping space is formed between the two clamping plates.

[0026] Adjustment hole, the adjustment hole is set on the side wall of the transmission seat;

[0027] The positioning rod has its first end fixedly connected to the clamping plate, and its second end passes through the adjustment hole, with the positioning rod slidably connected to the adjustment hole.

[0028] Fasteners are threaded onto the outside of the positioning rod and fit against the outer wall of the transmission seat.

[0029] In one feasible implementation, the clamping mechanism further includes:

[0030] The retainer is fixedly connected to the side wall of the first side of the frame and is located between the two clamping mechanisms.

[0031] Two drive bars, the first end of each drive bar is connected to the clamping seat of two clamping mechanisms respectively, and the second end of each drive bar passes through the retaining seat, with the drive bars slidably connected to the retaining seat;

[0032] Two displacement sensors are arranged on both sides of the retainer and are threadedly connected to the retainer. The detection ends of the two displacement sensors are respectively attached to the two drive bars, and the displacement sensors correspond one-to-one with the drive bars.

[0033] In one feasible implementation, the irradiation mechanism includes:

[0034] Two connecting seats, which are fixedly connected to the transmission ring;

[0035] A reflective imaging plate is fixedly connected to one of the connecting seats;

[0036] The X-ray detection device is fixedly connected to another connector. The irradiation end of the X-ray detection device is set opposite to the reflective imaging plate, and the irradiation end and the reflective imaging plate are located on both sides of the pipeline.

[0037] In one feasible implementation, the automatic pipeline DR inspection device further includes:

[0038] The jumping device is mounted on the frame and makes rolling contact with the end face of the transmission ring away from the frame.

[0039] A pressure sensor is installed on the agitation device.

[0040] The elastic element has its first end in contact with the agitation device and its second end in contact with the pressure sensor. The agitation device transmits pressure to the pressure sensor through the elastic element.

[0041] In one feasible implementation, the agitation device includes:

[0042] The mounting box is located on the outside of the transmission ring and is fixedly connected to the frame.

[0043] Positioning sleeve, which is mounted on the mounting box;

[0044] The connecting rod passes through the positioning sleeve;

[0045] The ball bearing is embedded in the end of the connecting rod near the drive ring, and the ball bearing makes rolling contact with the drive ring.

[0046] The limiting cover is fitted onto the outside of the positioning sleeve and is connected to the mounting box.

[0047] The pressure sensor is installed inside the positioning sleeve and is fitted onto the outside of the connecting rod. The first end of the elastic element is mounted on the connecting rod.

[0048] In one feasible implementation, the automatic pipeline DR inspection device further includes:

[0049] The roller is rotatably connected inside the mounting box, and the roller makes rolling contact with the drive ring.

[0050] According to a second aspect of the embodiments of this application, an automatic pipeline DR inspection system is provided, including an automatic pipeline DR inspection device as described in any of the above technical solutions, and further comprising:

[0051] The signal receiving module wirelessly connects to the automatic pipeline DR detection device via Bluetooth to receive the detection signals from the automatic pipeline DR detection device.

[0052] The signal processing module is electrically connected to the signal receiving module to process the detection signal.

[0053] The automatic pipeline DR inspection device and system disclosed in this application have the following advantages compared with the prior art:

[0054] The automatic DR inspection device for pipelines provided in this application includes a frame, a clamping mechanism, a rotary connection mechanism, and an irradiation mechanism. A first driving device drives the clamping seat to move and clamp the pipeline, so that the entire device is installed on the outside of the pipeline through the clamping mechanism. A transmission ring is rotatably connected to the frame, and the irradiation mechanism is set on the transmission ring so that the irradiation mechanism and the transmission ring rotate synchronously. A second driving device drives the transmission ring to rotate relative to the pipeline, thereby driving the irradiation mechanism to rotate relative to the pipeline. The irradiation mechanism is then used to automatically inspect the pipeline in the circumferential direction, improving the inspection efficiency of the pipeline. By clamping the pipeline through the clamping mechanism, the coaxiality between the pipeline and the transmission ring is improved, thereby improving the perpendicularity between the irradiation mechanism and the pipeline when the irradiation mechanism rotates around the pipeline in the circumferential direction, which is beneficial to improving the inspection quality of the irradiation mechanism. Attached Figure Description

[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0056] Figure 1 A schematic structural diagram of the first angle of an automatic pipeline DR inspection device according to an embodiment of this application;

[0057] Figure 2 A schematic structural diagram of a second angle of an automatic pipeline DR inspection device according to an embodiment of this application;

[0058] Figure 3 A schematic structural diagram of a pipeline automatic DR inspection device according to an embodiment of this application, taken from a third angle;

[0059] Figure 4 for Figure 3 Enlarged view of point A;

[0060] Figure 5 A schematic structural diagram of the clamping mechanism of an automatic pipeline DR inspection device according to an embodiment of this application, showing the first angle.

[0061] Figure 6 A schematic structural diagram of the clamping mechanism of an automatic pipeline DR inspection device according to an embodiment of this application, showing the second angle.

[0062] Figure 7 for Figure 2 Enlarged view of point B;

[0063] Figure 8 A schematic structural diagram of the running device of an automatic pipeline DR detection device according to an embodiment of this application;

[0064] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0065] 11. Frame; 12. Clamping mechanism; 13. Rotary connection mechanism; 14. Irradiation mechanism; 15. Jumping device; 16. Pressure sensor; 17. Elastic element; 18. Roller;

[0066] 121. First drive unit; 122. Clamping seat; 123. Mounting bracket; 124. Guide rod; 125. Transmission screw; 126. Screw sleeve; 127. Retaining seat; 128. Transmission bar; 129. Displacement sensor;

[0067] 131. Second drive unit; 132. Transmission ring; 133. Guide wheel; 134. Gear; 135. Limiting groove;

[0068] 141. Connector; 142. Reflective imaging plate; 143. X-ray detection device; 144. Transmitter;

[0069] 151. Mounting box; 152. Positioning sleeve; 153. Connecting rod; 154. Ball bearing; 155. Limiting cover;

[0070] 1221. Transmission seat; 1222. Clamping plate; 1223. Adjustment hole; 1224. Positioning rod; 1225. Fastener. Detailed Implementation

[0071] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0074] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0075] like Figures 1 to 3As shown, according to a first aspect of the embodiments of this application, an automatic DR inspection device for pipelines is proposed, comprising: a frame 11, a clamping mechanism 12, a rotary connection mechanism 13, and an irradiation mechanism 14; the clamping mechanism 12 is disposed on the side wall of a first side of the frame 11, and the clamping mechanism 12 includes a first driving device 121 and a clamping seat 122, the clamping seat 122 being slidably connected to the frame 11, and the first driving device 121 driving the clamping seat 122 to move to clamp the pipeline; the rotary connection mechanism 13 is disposed on the frame 11, and the rotary connection mechanism 13 includes a second driving device 131 and a transmission ring 132, the transmission ring 132 being disposed around the outside of the pipeline in the circumferential direction, the transmission ring 132 being rotatably connected to the side wall of a second side of the frame 11, and the second driving device 131 driving the transmission ring 132 to rotate relative to the pipeline; the irradiation mechanism 14 is disposed on the transmission ring 132, and the irradiation mechanism 14 and the transmission ring 132 rotate synchronously to inspect the pipeline in the circumferential direction.

[0076] The automatic DR inspection device for pipelines provided in this application includes a frame 11, a clamping mechanism 12, a rotary connection mechanism 13, and an irradiation mechanism 14. A first driving device 121 drives the clamping seat 122 to move and clamp the pipeline, so that the device as a whole is installed on the outside of the pipeline through the clamping mechanism 12. A transmission ring 132 is rotatably connected to the frame 11, and the irradiation mechanism 14 is disposed on the transmission ring 132 so that the irradiation mechanism 14 and the transmission ring 132 rotate synchronously. A second driving device 131 drives the transmission ring 132 to rotate relative to the pipeline, thereby driving the irradiation mechanism 14 to rotate relative to the pipeline. The irradiation mechanism 14 is then used to automatically inspect the pipeline in the circumferential direction, thereby improving the inspection efficiency of the pipeline. The clamping mechanism 12 clamps the pipeline to improve the coaxiality between the pipeline and the transmission ring 132, thereby improving the perpendicularity between the irradiation mechanism 14 and the pipeline when the irradiation mechanism 14 rotates around the pipeline in the circumferential direction, which is beneficial to improving the inspection quality of the irradiation mechanism 14.

[0077] In particular, when the pipeline is a fixed pipeline at high altitude, the clamping seat 122 is moved by the first drive device 121 to clamp the pipeline, which can quickly install the detection device onto the pipeline and complete the installation in one go. Then, the second drive device 131 and the irradiation mechanism 14 are remotely controlled, and the transmission ring 132 drives the irradiation mechanism 14 to rotate automatically around the pipeline, thereby automatically completing the detection task of the entire weld seam in the circumference of the pipeline. It has a high degree of automation and is easy to use.

[0078] like Figure 2As shown, in one feasible embodiment, the rotary connection mechanism 13 further includes a guide wheel 133, a gear 134, and a limiting groove 135; the guide wheel 133 is rotatably connected to the side wall of the second side of the frame 11, and a plurality of guide wheels 133 are arranged circumferentially on the outer side of the transmission ring 132 to support the rotation of the transmission ring 132; the gear 134 is rotatably connected to the side wall of the second side of the frame 11, and the gear 134 is connected to the output shaft of the second drive device 131; the second drive device 131 is fixedly connected to the side wall of the first side of the frame 11; the transmission ring 132 is provided with a first external tooth in the circumferential direction, and the gear 134 is provided with a second external tooth in the circumferential direction, the second external tooth meshing with the first external tooth to drive the transmission ring 132 to rotate through the gear 134; the limiting groove 135 is provided on the outer wall of the guide wheel 133 in the circumferential direction, and the transmission ring 132 rotates in the limiting groove 135.

[0079] In this technical solution, the second driving device 131 drives the gear 134 to rotate. The gear 134 meshes with the first external tooth on the transmission ring 132 to achieve automatic rotation of the transmission ring 132, thereby driving the irradiation mechanism 14 to rotate, so as to automatically detect the pipeline in the circumferential direction outside the pipeline. The guide wheel 133 is rotatably connected to the frame 11 and is arranged on the outside of the transmission ring 132 in the circumferential direction of the transmission ring 132. The guide wheel 133 supports the rotation of the transmission ring 132, ensuring the stability of the rotation of the transmission ring 132 and the structural reliability. By embedding the transmission ring 132 into the limiting groove 135 on the outer wall of the guide wheel 133, the rotation of the transmission ring 132 is limited by the guide wheel 133, based on the rotational support of the transmission ring 132, preventing the transmission ring 132 from tilting or deviating when rotating, thereby ensuring that the position of the rotation axis of the transmission ring 132 remains unchanged, and thus ensuring the coaxiality of the transmission ring 132 with the pipeline when rotating, which helps to improve the detection accuracy of the pipeline by the irradiation mechanism 14.

[0080] like Figure 2 As shown, in one feasible embodiment, there are two clamping mechanisms 12, which are arranged radially along the transmission ring 132 and symmetrically on the outer side of the transmission ring 132. The clamping mechanism 12 also includes: a mounting bracket 123, a guide rod 124, a transmission screw 125, and a screw sleeve 126. The mounting bracket 123 is fixedly connected to the side wall of the first side of the frame 11. The first end of the guide rod 124 is slidably connected to the mounting bracket 123, and the second end of the guide rod 124 is fixedly connected to the clamping seat 122. The first end of the transmission screw 125 is connected to the output end of the first driving device 121. The screw sleeve 126 is threadedly connected to the outer side of the transmission screw 125, the first end of the screw sleeve 126 is slidably connected to the mounting bracket 123, and the second end of the screw sleeve 126 is fixedly connected to the clamping seat 122.

[0081] In this technical solution, the pipe is clamped from both sides by two clamping mechanisms 12, which not only improves the contact stability between the clamping mechanisms 12 and the pipe, ensuring the stability of the device installation on the pipe, but also allows the pipe to be clamped in the center by the simultaneous movement of the two clamping seats 122, so that the axis of the pipe coincides with the axis of the transmission ring 132, and the irradiation mechanism 14 moves equidistantly along the circumference of the pipe, thereby improving the detection accuracy of the irradiation mechanism 14 on the pipe; the first driving device 121 drives the transmission screw 125 to rotate, and the clamping seats 122 and the transmission screw 125 is connected by a threaded sleeve 126, which converts the rotation of the transmission screw 125 into the linear motion of the clamping seat 122, thereby enabling the clamping seat 122 to move closer to / away from the pipe to clamp / release the pipe. By sliding the guide rod 124 to the mounting bracket 123 and connecting the clamping seat 122 to the guide rod 124, the guide rod 124 supports and guides the clamping seat 122 when it slides, thereby improving the reliability of the connection between the clamping seat 122 and the mounting bracket 123 and improving the stability of the movement of the clamping seat 122.

[0082] Furthermore, the two clamping mechanisms 12 are arranged along the same radial line of the transmission ring 132 so that the two clamping mechanisms 12 are centrally symmetrical with respect to the transmission ring 132, thereby improving the accuracy of the clamping mechanism 12 in centering the pipe.

[0083] like Figures 3 to 5 As shown, in one feasible embodiment, the clamping seat 122 includes: a transmission seat 1221, two clamping plates 1222, an adjustment hole 1223, a positioning rod 1224, and a fastener 1225; the transmission seat 1221 is fixedly connected to the second end of the guide rod 124, and the transmission seat 1221 is fixedly connected to the second end of the threaded sleeve 126; the two clamping plates 1222 are respectively disposed at both ends of the transmission seat 1221, and the clamping plates 1222 are at an angle to the center line of the transmission seat 1221. The arrangement is such that a V-shaped clamping space is formed between the two clamping plates 1222; an adjustment hole 1223 is provided on the side wall of the transmission seat 1221; the first end of the positioning rod 1224 is fixedly connected to the clamping plate 1222, the second end of the positioning rod 1224 passes through the adjustment hole 1223, and the positioning rod 1224 is slidably connected to the adjustment hole 1223; a fastener 1225 is threadedly connected to the outside of the positioning rod 1224, and the fastener 1225 is in contact with the outer wall of the transmission seat 1221.

[0084] In this technical solution, the threaded sleeve 126 drives the transmission seat 1221 to slide linearly, thereby moving the two clamping plates 1222 on the transmission seat 1221. As the two clamping seats 122 move towards each other and closer to the pipe, the four clamping plates 1222 approach the pipe and make multi-point contact with it to accommodate pipes of different specifications. The clamping plates 1222 are adjustablely mounted on the transmission seat 1221 via positioning rods 1224. The adjusting hole 1223 is used to limit and guide the movement of the positioning rods 1224. After the position of 24 is adjusted, the positioning rod 1224 is locked with fastener 1225 to fix the position of clamping plate 1222. Then, by fine-tuning the position of clamping plate 1222, the accuracy of centering and clamping the pipeline is further improved. By fine-tuning the position of clamping plate 1222, the coaxiality of the pipeline and transmission ring 132 is adjusted, thereby further improving the detection accuracy of irradiation mechanism 14. At the same time, the stability of the contact between clamping mechanism 12 and pipeline is ensured, thereby improving the stability of the device installed and fixed on the pipeline.

[0085] like Figure 3 and Figure 6 As shown, in one feasible embodiment, the clamping mechanism 12 further includes: a retaining seat 127, two transmission bars 128, and two displacement sensors 129; the retaining seat 127 is fixedly connected to the side wall of the first side of the frame 11, and the retaining seat 127 is located between the two clamping mechanisms 12; the first ends of the two transmission bars 128 are respectively connected to the clamping seats 122 of the two clamping mechanisms 12, and the second ends of the transmission bars 128 pass through the retaining seat 127, and the transmission bars 128 and the retaining seat 127 are slidably connected; the two displacement sensors 129 are respectively arranged on both sides of the retaining seat 127, the displacement sensors 129 are threadedly connected to the retaining seat 127, and the detection ends of the two displacement sensors 129 are respectively attached to the two transmission bars 128, and the displacement sensors 129 and the transmission bars 128 correspond one-to-one.

[0086] In this technical solution, two transmission bars 128 are slidably connected within the retaining seat 127, and the two transmission bars 128 are respectively connected to two clamping seats 122. The transmission bars 128 move the corresponding clamping seats 122 synchronously. By setting a displacement sensor 129 on the retaining seat 127, the displacement of the transmission bars 128 can be monitored, thereby facilitating the real-time measurement of the positions of the two clamping seats 122.

[0087] Furthermore, the displacement sensor 129 is threaded onto the retainer 127, and the two displacement sensors 129 are arranged symmetrically on both sides of the retainer 127.

[0088] like Figure 2As shown, in one feasible embodiment, the irradiation mechanism 14 includes: two connecting seats 141, a reflective imaging plate 142, and an X-ray detection device 143; the connecting seats 141 are fixedly connected to the transmission ring 132; the reflective imaging plate 142 is fixedly connected to one of the connecting seats 141; the X-ray detection device 143 is fixedly connected to the other connecting seat 141, and the irradiation end of the X-ray detection device 143 is arranged opposite to the reflective imaging plate 142, and the irradiation end and the reflective imaging plate 142 are respectively located on both sides of the pipeline.

[0089] In this technical solution, the reflective imaging plate 142 and the X-ray detection device 143 are respectively fixed on the transmission ring 132 through a connecting seat 141. The transmission ring 132 synchronously drives the X-ray detection device 143 and the reflective imaging plate 142 to rotate in the same direction. The X-rays emitted from the irradiation end of the X-ray detection device 143 penetrate the pipe in the circumferential direction for inspection, so that the reflective imaging plate 142 can reflect the X-rays emitted from the irradiation end of the X-ray detection device 143 in real time and form an image, thereby realizing automatic DR inspection of the pipe.

[0090] Furthermore, the two connecting seats 141 are arranged along the same radial line of the transmission ring 132, so that the reflective imaging plate 142 and the X-ray detection device 143 are centrally symmetrically arranged with respect to the transmission ring 132. After the clamping mechanism 12 clamps the pipe in the center, the reflective imaging plate 142 and the X-ray detection device 143 are located on the axis of the pipe, which improves the image quality of the reflective imaging plate 142 and thus improves the radiographic quality of DR detection. There is no need to manually adjust the position of the reflective imaging plate 142 and the X-ray detection device 143, which reduces the safety risks in the detection process and improves the continuity of detection, thereby improving the efficiency of DR detection of the pipe.

[0091] It should be noted that DR (Digital Radiography) inspection is a type of X-ray inspection method in non-destructive testing. DR inspection uses a digital X-ray imaging inspection device to perform inspection, which converts X-rays passing through the pipe into digital signals to form digital images, which are then transmitted and stored.

[0092] Such as 2 and Figure 7 As shown, in one feasible embodiment, the automatic pipeline DR detection device further includes: a vibration device 15, a pressure sensor 16, and an elastic element 17; the vibration device 15 is disposed on the frame 11, and the vibration device 15 rolls in contact with the end face of the transmission ring 132 away from the frame 11; the pressure sensor 16 is disposed on the vibration device 15; the first end of the elastic element 17 is in contact with the vibration device 15, and the second end of the elastic element 17 is in contact with the pressure sensor 16, and the vibration device 15 transmits pressure to the pressure sensor 16 through the elastic element 17.

[0093] In this technical solution, the jumping device 15 rolls in contact with the end face of the transmission ring 132 away from the frame 11. When the end face of the transmission ring 132 jumps, the jumping device 15 compresses the elastic element 17, and the elastic element 17 pressurizes the pressure sensor 16. The pressure sensor 16 monitors the pressure of the jumping device 15 to measure the amount of jumping when the transmission ring 132 rotates, thereby monitoring the coaxial state of the pipeline and the transmission ring 132.

[0094] It should be noted that when the transmission ring 132 rotates and the shaft position remains unchanged, the transmission ring 132 and the pipeline are always coaxial, and the end face of the transmission ring 132 is always parallel to the end face of the frame 11. The pressure of the end face of the transmission ring 132 on the agitation device 15 remains basically unchanged. When the transmission ring 132 rotates and the shaft position changes, the end face position of the transmission shaft changes, and the pressure of the end face of the transmission ring 132 on the agitation device 15 changes. The pressure is then transmitted to the pressure sensor 16 through the elastic element 17. The pressure sensor 16 monitors the change in the shaft position during the rotation of the transmission ring 132, thereby monitoring the coaxial state of the transmission ring 132 with the pipeline during rotation, and thus determining whether the position of the clamping plate 1222 needs to be finely adjusted.

[0095] like Figure 8 As shown, in one feasible embodiment, the jumping device 15 includes: a mounting box 151, a positioning sleeve 152, a connecting rod 153, a ball bearing 154, and a limiting cover 155; the mounting box 151 is disposed on the outside of the transmission ring 132 and is fixedly connected to the frame 11; the positioning sleeve 152 is disposed on the mounting box 151; the connecting rod 153 passes through the positioning sleeve 152; the ball bearing 154 is embedded in the end of the connecting rod 153 near the transmission ring 132, and the ball bearing 154 rolls in contact with the transmission ring 132; the limiting cover 155 is fitted on the outside of the positioning sleeve 152 and is connected to the mounting box 151; wherein, the pressure sensor 16 is disposed inside the positioning sleeve 152, the pressure sensor 16 is fitted on the outside of the connecting rod 153, and the first end of the elastic element 17 is disposed on the connecting rod 153.

[0096] In this technical solution, the mounting box 151 is fixed on the frame 11, the positioning sleeve 152 is fixed on the mounting box 151 by the limiting cover 155, the connecting rod 153 is slidably connected in the positioning sleeve 152, and the connecting rod 153 rolls in contact with the transmission ring 132 through the ball bearing 154. When the end face of the transmission ring 132 jumps, the ball bearing 154 drives the connecting rod 153 to slide linearly back and forth in the positioning sleeve 152, and then the pressure sensor 16 is pressurized to different degrees through the elastic element 17, so as to realize the measurement of the jump when the transmission ring 132 rotates, thereby monitoring the coaxial state of the pipeline and the transmission ring 132.

[0097] like Figure 7 and Figure 8 As shown, in one feasible embodiment, the automatic pipeline DR inspection device further includes: a roller 18, which is rotatably connected in the mounting box 151 and has rolling contact with the transmission ring 132.

[0098] In this technical solution, the roller 18 is rotatably connected inside the mounting box 151, and the roller 18 makes rolling contact with the outer wall of the transmission ring 132 so as to provide rotational support for the transmission ring 132 through the roller 18, thereby further ensuring the stability of the rotation of the transmission ring 132.

[0099] Working principle:

[0100] When inspecting the pipeline, the device is fitted over the pipeline, allowing the pipeline to pass through the transmission ring 132. The power supply to the device is turned on, and the first drive device 121 is activated. Under the support of the mounting bracket 123, the first drive device 121 drives the clamping seat 122 to slide linearly through the transmission screw 125 and the screw sleeve 126. This causes the two clamping seats 122 to move towards each other and clamp the pipeline through the clamping plate 1222. At the same time, the clamping seats 122 drive the transmission bar 128 to slide within the retaining seat 127. The displacement of the two transmission bars 128 is detected by two displacement sensors 129, thereby monitoring the displacement of the two clamping seats 122 and determining their positions in real time.

[0101] Adjust the position of the positioning rod 1224 within the adjustment hole 1223 and lock the positioning rod 1224 with fastener 1225 to adjust and fix the position of the clamping plate 1222 relative to the transmission seat 1221, so that the two clamping seats 122 clamp the pipe in the center through the four clamping plates 1222, keeping the pipe aligned with the axis of the transmission ring 132. Start the second drive device 131, which drives the gear 134 to rotate, and the gear 134 drives the transmission ring 132 to rotate between multiple guide wheels 133.

[0102] Simultaneously, the transmission ring 132 drives the reflective imaging plate 142 and the X-ray detection device 143 to rotate in the same direction through the connecting seat 141. The X-ray detection device 143 emits X-rays through the irradiation end, and the reflective imaging plate 142 reflects the X-rays and forms an image, so as to realize the circumferential all-round penetrating inspection of the pipe located between the X-ray detection device 143 and the reflective imaging plate 142.

[0103] During the rotation of the transmission ring 132, runout is detected by the runout device 15. Specifically, the mounting box 151 provides rolling support for the transmission ring 132 through multiple rollers 18. A connecting rod 153 is installed inside the positioning sleeve 152, and the pressure sensor 16 is connected to the connecting rod 153 through an elastic element 17, so that the ball bearings 154 on the connecting rod 153 can maintain rolling contact with the end face of the transmission ring 132 under the support of the elastic element 17 and the pressure sensor 16.

[0104] When the end face of the transmission ring 132 jumps, the ball bearing 154 drives the connecting rod 153 to slide linearly back and forth inside the positioning sleeve 152. Then, the connecting rod 153 applies pressure to the pressure sensor 16 to different degrees through the elastic element 17. By using the pressure sensor 16 to monitor the pressure of the connecting rod 153, the amount of jump when the transmission ring 132 rotates can be measured, thereby monitoring the coaxiality of the pipeline and the transmission ring 132 and ensuring the accuracy of the rotation detection of the pipeline by the irradiation mechanism 14.

[0105] According to a second aspect of this application, an automatic pipeline DR detection system is proposed, comprising an automatic pipeline DR detection device as described in any of the above technical solutions, and further comprising: a signal receiving module and a signal processing module, wherein the signal receiving module is wirelessly connected to the automatic pipeline DR detection device via Bluetooth to receive the detection signal from the automatic pipeline DR detection device; and the signal processing module is electrically connected to the signal receiving module to process the detection signal.

[0106] The automatic pipeline DR inspection system provided in this application includes an automatic pipeline DR inspection device, a signal receiving module, and a signal processing module. The signal receiving module is wirelessly connected to the automatic pipeline DR inspection device via Bluetooth to receive various inspection signals from the inspection device. The signal processing module is electrically connected to the signal receiving module to process the inspection signals, process the images obtained by the inspection device, and identify pipeline defects.

[0107] Furthermore, the automatic pipeline DR inspection system also includes a data display module. The signal receiving module, signal processing module, and data display module are set inside the reflective imaging plate 142. The signal processing module integrates X-ray transmission data, uses digital signal processing algorithms to generate high-resolution DR images, and automatically identifies weld defects. The data display module performs development data processing on the reflective imaging plate 142.

[0108] Furthermore, the automatic pipeline DR inspection system also includes a signal monitoring module. This module performs real-time analysis of DR images, monitoring indicators such as resolution and sensitivity to ensure image quality meets standards. After the signal receiving module collects data, the processing module generates images and marks defects. The monitoring module evaluates the results and feeds them back to the control system for automated adjustments. Simultaneously, the signal monitoring module monitors the device's operating status, ensuring stable voltage and current, and thus determining whether mechanical components are jammed or overloaded, preventing damage to the device.

[0109] Specifically, the signal receiving module is wirelessly connected to the X-ray detection device 143 via Bluetooth. The signal receiving module receives X-ray transmission data (such as transmission intensity and energy spectrum). The signal receiving module is electrically connected to two displacement sensors 129 and a pressure sensor 16 to obtain the position information of the clamping seat 122 of the displacement sensor 129 and to obtain the pressure data of the contact between the jumping device 15 of the pressure sensor 16 and the end face of the transmission ring 132.

[0110] The automatic DR detection system for pipelines provided in this application includes the automatic DR detection device for pipelines as described in any of the above technical solutions. Therefore, the automatic DR detection system for pipelines has all the beneficial effects of the automatic DR detection device for pipelines as described in the above technical solutions, and will not be elaborated here.

[0111] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0112] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. An automatic pipeline DR inspection device, characterized in that, The automatic pipeline DR inspection device includes: frame; A clamping mechanism is disposed on the side wall of the first side of the frame. The clamping mechanism includes a first driving device and a clamping seat. The clamping seat is slidably connected to the frame. The first driving device drives the clamping seat to move to clamp the pipe. A rotary connection mechanism is provided on the frame. The rotary connection mechanism includes a second driving device and a transmission ring. The transmission ring is circumferentially arranged around the outside of the pipe. The transmission ring is rotatably connected to the side wall of the second side of the frame. The second driving device drives the transmission ring to rotate relative to the pipe. An irradiation mechanism is disposed on the transmission ring and rotates synchronously with the transmission ring to inspect the pipeline in the circumferential direction of the pipeline. A jumping device is disposed on the frame and makes rolling contact with the end face of the transmission ring away from the frame; A pressure sensor, which is mounted on the agitation device; An elastic element is provided, with its first end in contact with the agitation device and its second end in contact with the pressure sensor. The agitation device transmits pressure to the pressure sensor through the elastic element.

2. The automatic pipeline DR inspection device according to claim 1, characterized in that, The rotary connection mechanism further includes: Guide wheels are rotatably connected to the side wall of the second side of the frame. A plurality of guide wheels are arranged circumferentially on the outside of the transmission ring to support the rotation of the transmission ring. A gear is rotatably connected to the side wall of the second side of the frame, and the gear is connected to the output shaft of the second drive device; the second drive device is fixedly connected to the side wall of the first side of the frame. The transmission ring has a first external tooth in its circumferential direction, and the gear has a second external tooth in its circumferential direction. The second external tooth meshes with the first external tooth so as to drive the transmission ring to rotate through the gear. A limiting groove is provided on the outer wall of the guide wheel along the circumference of the guide wheel, and the transmission ring rotates within the limiting groove.

3. The automatic pipeline DR inspection device according to claim 1, characterized in that, There are two clamping mechanisms, which are arranged radially along the transmission ring and symmetrically on the outside of the transmission ring. The clamping mechanism further includes: Mounting bracket, which is fixedly connected to the side wall of the first side of the frame; A guide rod, the first end of which is slidably connected to the mounting bracket, and the second end of which is fixedly connected to the clamping seat; A transmission screw, the first end of which is connected to the output end of the first driving device; A threaded sleeve is threaded to the outside of the transmission screw. The first end of the threaded sleeve is slidably connected to the mounting bracket, and the second end of the threaded sleeve is fixedly connected to the clamping seat.

4. The automatic pipeline DR inspection device according to claim 3, characterized in that, The clamping seat includes: A transmission seat, which is fixedly connected to the second end of the guide rod, and the transmission seat is fixedly connected to the second end of the threaded sleeve; Two clamping plates are respectively disposed at both ends of the transmission seat. The clamping plates are arranged at an angle to the center line of the transmission seat, and a V-shaped clamping space is formed between the two clamping plates. An adjustment hole is provided on the side wall of the transmission seat; A positioning rod, the first end of which is fixedly connected to the clamping plate, the second end of which passes through the adjustment hole, and the positioning rod is slidably connected to the adjustment hole; A fastener, which is threaded onto the outside of the positioning rod and fits against the outer wall of the transmission seat.

5. The automatic pipeline DR inspection device according to claim 3, characterized in that, The clamping mechanism further includes: A retainer is fixedly connected to the side wall of the first side of the frame, and the retainer is located between the two clamping mechanisms; Two drive bars, the first ends of the two drive bars are respectively connected to the clamping seats of the two clamping mechanisms, the second ends of the drive bars pass through the retaining seat, and the drive bars are slidably connected to the retaining seat; Two displacement sensors are respectively arranged on both sides of the retaining seat. The displacement sensors are threadedly connected to the retaining seat. The detection ends of the two displacement sensors are respectively attached to the two transmission bars. The displacement sensors correspond one-to-one with the transmission bars.

6. The automatic pipeline DR inspection device according to claim 1, characterized in that, The irradiation mechanism includes: Two connecting seats, which are fixedly connected to the transmission ring; A reflective imaging plate, the reflective imaging plate being fixedly connected to one of the connecting seats; An X-ray detection device is fixedly connected to another connecting seat. The irradiation end of the X-ray detection device is arranged opposite to the reflective imaging plate, and the irradiation end and the reflective imaging plate are respectively located on both sides of the pipe.

7. The automatic pipeline DR inspection device according to claim 1, characterized in that, The jumping device includes: The mounting box is disposed on the outside of the transmission ring and is fixedly connected to the frame; A positioning sleeve is disposed on the mounting box; Connecting rod, the connecting rod passing through the positioning sleeve; A ball bearing is embedded in one end of the connecting rod near the transmission ring, and the ball bearing makes rolling contact with the transmission ring. A limiting cover is fitted onto the outside of the positioning sleeve and is connected to the mounting box; The pressure sensor is disposed inside the positioning sleeve and is fitted onto the outside of the connecting rod. The first end of the elastic element is disposed on the connecting rod.

8. The automatic pipeline DR inspection device according to claim 7, characterized in that, The automatic pipeline DR inspection device also includes: A roller is rotatably connected inside the mounting box and makes rolling contact with the transmission ring.

9. An automatic pipeline DR inspection system, characterized in that, The automatic pipeline DR inspection device as described in any one of claims 1 to 8 further includes: The signal receiving module is wirelessly connected to the automatic pipeline DR detection device via Bluetooth to receive the detection signal from the automatic pipeline DR detection device. A signal processing module, which is electrically connected to the signal receiving module, is used to process the detection signal.

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