Automatic steel pipe ultrasonic detection device
By using sealing plugs and high-pressure gas to prevent water from entering the steel pipe, combined with a separable sleeve and high-pressure air purging, the problems of water corrosion and cumbersome sealing caps are solved, realizing an efficient process for automated ultrasonic testing of steel pipes.
Patent Information
- Application Number
- CN202511378409.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-01-06
AI Technical Summary
In existing ultrasonic testing of steel pipes, water sprayed from the nozzle can easily enter the inside of the steel pipe, causing corrosion. Furthermore, the installation and removal of the sealing cap is cumbersome, affecting testing efficiency.
An automated ultrasonic testing device for steel pipes is adopted, which uses sealing plugs and high-pressure gas to prevent water from entering the steel pipe. Combined with a detachable sleeve and high-pressure air to blow away residual water on the outer wall, the fully automated testing is achieved.
It reduces water residue inside steel pipes, improves testing efficiency, eliminates the cumbersome step of sealing the cap, and realizes a fully automated testing process.
Smart Images
Figure CN121275905A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ultrasonic testing technology, and in particular to an automated ultrasonic testing device for steel pipes. Background Technology
[0002] During the production process, factors such as manufacturing techniques and the precision of processing equipment can cause defects in steel pipes, such as dents, cracks, and delamination. These defects reduce the strength of the steel pipe, leading to breakage or damage during use, which can result in leakage of transported materials, causing safety accidents or economic losses. Therefore, steel pipes for important applications generally require non-destructive testing before leaving the factory.
[0003] Currently, most non-destructive testing (NDT) of steel pipes uses ultrasonic testing. The principle involves continuously spraying water onto the outer wall of the steel pipe to form a uniform water film. An ultrasonic sensor is then attached to the outer wall at a certain distance to emit sound waves. The water film acts as a coupling medium for sound wave transmission, allowing the high-frequency sound waves emitted by the ultrasonic sensor to efficiently penetrate into the pipe wall. When the sound waves encounter defects such as cracks, corrosion, or holes in the pipe wall, some of the sound waves are reflected due to changes in acoustic impedance. The probe then captures these reflected echoes. The system accurately measures the time difference between the emission and return of the sound waves. Combined with the known propagation speed of sound waves in the steel pipe material, the depth and location of the defect can be calculated. Furthermore, the size and nature of the defect can be analyzed by examining the echo intensity, thus achieving non-contact NDT of pipe wall defects.
[0004] However, water sprayed from the nozzle can easily enter the steel pipe through the openings at both ends, causing corrosion. To solve this problem, the usual method is to seal the openings at both ends of the steel pipe with sealing caps before testing and then remove the caps after testing. However, installing and removing the sealing caps is cumbersome, severely impacting testing efficiency. Furthermore, after testing, some moisture may remain on the outer wall of the caps and the steel pipe, which can easily be spilled into the pipe during removal or transport, causing internal corrosion.
[0005] Therefore, how to reduce the residual water on the steel pipe after testing and improve testing efficiency has become a pressing technical problem to be solved in the field of ultrasonic testing of steel pipes. Summary of the Invention
[0006] In order to reduce the residual water on the steel pipe after testing and improve the efficiency of steel pipe testing, this application provides an automated ultrasonic testing device for steel pipes.
[0007] The automated ultrasonic testing device for steel pipes provided in this application adopts the following technical solution: An automated ultrasonic testing device for steel pipes includes: frame; The detection component, mounted on the frame, is used to spray water onto the outer wall of the steel pipe and to detect the steel pipe using ultrasonic waves; A conveying assembly, mounted on the frame, is used to convey the steel pipe to be inspected to the detection assembly. The conveying assembly includes multiple guide rollers, a slide block, and a sealing plug. The multiple guide rollers are used to roll against both sides of the steel pipe and support it. The slide block is slidably connected to the frame along the feeding direction of the steel pipe. The sealing plug is connected to the slide block and is used to seal the end of the steel pipe away from the detection assembly. The sealing plug has an air jet channel that connects to an external air source and is used to input gas into the inner cavity of the steel pipe. The slide block is driven and, via the sealing plug, drives the steel pipe to slide along the feeding direction.
[0008] By adopting the above technical solution, the residual water on the steel pipe after testing is reduced, and the testing efficiency of the steel pipe is improved. Specifically, during ultrasonic testing of the steel pipe, the drive slide moves closer to the testing component. During this process, the sealing plug abuts against and seals the end of the steel pipe away from the testing component, while simultaneously driving the steel pipe to slide along its length towards the testing component on the guide roller. At this time, an external air source is turned on to continuously input high-pressure gas into the inner cavity of the steel pipe through the jet channel, causing the high-pressure gas to be ejected from the end of the steel pipe away from the sealing plug. This prevents water sprayed by the testing component from entering the inner cavity of the steel pipe from the end away from the sealing plug after the end of the steel pipe enters the testing component. Conversely, when the end of the steel pipe close to the sealing plug enters the testing component, the sealing plug also prevents water sprayed by the testing component from entering the inner cavity of the steel pipe from the end close to the sealing plug. Furthermore, after the testing of a single steel pipe is completed, the drive slide moves away from the testing component to reset, and the next steel pipe can then be tested. The entire testing process does not require sealing the openings at both ends of the steel pipe with a sealing cap, eliminating the tedious steps of disassembling and assembling the sealing cap. The fully automated design improves the testing efficiency of the steel pipe.
[0009] Optionally, the detection assembly has a support assembly on the side opposite to the conveying assembly for carrying the steel pipe after detection. The support assembly includes a sleeve and multiple universal balls. The sleeve is mounted on the frame and one end of the sleeve is closed. After the steel pipe slides through the detection assembly, it can be inserted into the inner cavity of the sleeve from the open end. The multiple universal balls are mounted on the inner wall of the sleeve for rolling contact with the outer wall of the steel pipe.
[0010] By adopting the above technical solution, after the steel pipe slides past the detection component, the end of the steel pipe furthest from the sealing plug will be inserted into the inner cavity of the casing from the open end. Due to the design of the casing with one open end and one closed end, high-pressure air is ejected from the end of the steel pipe furthest from the sealing plug, passes through the gap between the casing and the steel pipe, and is then ejected from the open end of the casing, thereby blowing away residual water on the outer wall of the steel pipe and reducing water residue on the outer wall of the steel pipe. The universal ball on the inner wall of the casing can support the steel pipe after it is inserted into the casing, preventing the steel pipe from directly contacting and scratching the inner wall of the casing; it also maintains a uniform gap between the steel pipe and the inner wall of the casing, so that the high-pressure air can act more evenly on the outer wall of the steel pipe during the blowing process, improving the blowing effect on the residual water on the outer wall of the steel pipe.
[0011] Optionally, the sleeve includes a first half-tube portion and a second half-tube portion; the first half-tube portion is connected to the frame, and the second half-tube portion is movably disposed relative to the first half-tube portion; the bearing assembly further includes a first bearing frame and a first telescopic drive member; the first bearing frame is used to support the tested steel pipe, and the first telescopic drive member is used to drive the second half-tube portion to move closer to or away from the first half-tube portion; when the second half-tube portion moves closer to the first half-tube portion, it can form the sleeve; when the second half-tube portion moves away from the first half-tube portion, it can cause the steel pipe located between the second half-tube portion and the first half-tube portion to fall onto the first bearing frame.
[0012] By adopting the above technical solution, the sleeve is designed with a separable first half-tube and a second half-tube. During testing, the first telescopic drive is controlled to move the second half-tube closer to the first half-tube to form a complete sleeve, which supports the tested portion of the steel pipe and deflects the high-pressure gas ejected from the sleeve to purge residual water from the outer wall of the steel pipe. Once the steel pipe has been completely tested, the first telescopic drive is controlled to move the second half-tube away from the first half-tube, allowing the steel pipe to automatically fall from between the second and first half-tubes onto the first support frame for stacking, thus achieving automatic unloading of the steel pipe. The entire process reduces manual operation, thereby improving the overall testing efficiency of the steel pipe.
[0013] Optionally, a buffer pad is provided on the bearing surface of the first support frame; the bearing surface of the first support frame is inclined to the horizontal plane, and the side of the bearing surface of the first support frame that is higher than the horizontal plane is closer to the sleeve, while the side of the bearing surface of the first support frame that is lower than the horizontal plane is farther away from the sleeve.
[0014] By adopting the above technical solution, the buffer pad can buffer the steel pipes that have been tested when they fall onto the first support frame, preventing damage caused by hard contact between the steel pipes and the first support frame. The design of the support surface of the first support frame being inclined to the horizontal plane allows the steel pipes to slide naturally along the inclined support surface under their own weight and then be arranged in an orderly manner on the first support frame, which facilitates the subsequent collection and handling of the steel pipes and improves the processing efficiency after the steel pipes are tested.
[0015] Optionally, the length of the sleeve is greater than or equal to the length of the steel pipe; an electric heating wire is provided on the inner wall of the sleeve.
[0016] By adopting the above technical solution, the electric heating wire can heat the steel pipe entering the sleeve, accelerate the evaporation of moisture on the steel pipe surface, and further reduce the residual water on the steel pipe after testing. The sleeve length being greater than or equal to the steel pipe length ensures that the steel pipe is completely placed inside the sleeve cavity. This ensures that high-pressure air flowing through the gap between the steel pipe and the sleeve can reach all parts of the outer wall of the steel pipe; and that the electric heating wire can heat all parts of the steel pipe.
[0017] Optionally, the detection assembly includes a detection box, an ultrasonic sensor, a nozzle, a water pump, and a water tank; the detection box is mounted on the frame, and detection channels are provided on both sides of the detection box for steel pipes to pass through; the ultrasonic sensor and the nozzle are both installed inside the detection box; the water tank is used to store detection water, and the water pump is used to draw water from the water tank and deliver it to the nozzle so that water is sprayed out from the nozzle.
[0018] By adopting the above technical solution, the testing component can perform ultrasonic flaw detection on steel pipes. Specifically, the water tank stores the water required for testing, and the water pump delivers the water from the tank to the nozzle, causing the nozzle to spray water onto the outer wall of the steel pipe. This forms a uniform water film on the outer wall of the steel pipe to conduct sound waves, allowing the high-frequency sound waves emitted by the ultrasonic sensor to efficiently penetrate into the interior of the steel pipe, thus achieving the function of ultrasonic testing. The ultrasonic sensor emits ultrasonic waves onto the outer wall of the steel pipe and analyzes the echoes to determine the location, size, and nature of defects in the steel pipe. The testing box provides protection for the ultrasonic sensor and nozzle, reducing the probability of damage caused by external interference; it also prevents the water sprayed from the nozzle from scattering and collects the water, reducing water waste.
[0019] Optionally, the bottom of the testing box is provided with a drain hole, one end of which is connected to the inner cavity of the testing box, and the other end is connected to the water tank through a pipe.
[0020] By adopting the above technical solution, the water collected in the test chamber can be discharged into the water tank through the drain hole, realizing water recycling, reducing water waste, and avoiding the impact of water accumulation in the chamber on the test.
[0021] Optionally, the testing box is equipped with a clamping assembly for clamping steel pipes. The clamping assembly includes a first clamping arm, a second clamping arm, a third clamping arm, a first connecting rod, a second connecting rod, and a lead screw. The first, second, and third clamping arms are all rotatably connected to the testing box. The ends of the first, second, and third clamping arms near the testing channel are each equipped with rollers for rolling contact with the outer wall of the steel pipe. One end of the first connecting rod is hinged to the first clamping arm, and the other end is hinged to the second clamping arm. One end of the second connecting rod is hinged to the second clamping arm, and the other end is hinged to the third clamping arm. The lead screw is rotatably connected to the testing box and threadedly connected to the third clamping arm. Rotating the lead screw can cause the ends of the first, second, and third clamping arms near the testing channel to move closer to or further away from the central axis of the testing channel by equal values.
[0022] By adopting the above technical solution, the clamping assembly can restrict the displacement of the steel pipe other than sliding along its own length, thereby reducing the shaking and offset of the steel pipe during the sliding process through the detection assembly and improving the accuracy and stability of the detection. The design of the rotating screw in the clamping assembly, which ensures that the ends of the first, second, and third clamping arms closest to the detection channel are all approximately close to or far from the central axis of the detection channel, allows for flexible clamping of steel pipes of different diameters, adapting to the detection needs of various specifications of steel pipes and improving the versatility and applicability of the entire device.
[0023] Optionally, the ultrasonic sensor can rotate circumferentially around the central axis of the detection channel.
[0024] By adopting the above technical solution, the ultrasonic sensor can rotate circumferentially around the central axis of the detection channel, enabling ultrasonic testing of the steel pipe from different angles. This expands the detection range, making the testing more comprehensive and detailed, and more accurately detects defects such as dents, cracks, and delamination at different locations on the outer wall of the steel pipe. This improves the accuracy and reliability of the testing, thereby better ensuring the quality of the steel pipe.
[0025] Optionally, the conveying assembly is provided with a feeding assembly on its side. The feeding assembly includes a second support frame, a guide rod, and a second telescopic drive component. The second support frame is used to support and arrange the steel pipes to be inspected, and the support surface of the second support frame is inclined to the horizontal plane. The guide rod is inclined to the horizontal plane and connected to the second support frame. The lower end of the guide rod extends above the guide roller, and the upper end of the guide rod extends above the support surface of the second support frame. The second telescopic drive component is installed on the second support frame. When the output end of the second telescopic drive component extends, it can push the steel pipe located at the lowest position on the support surface of the second support frame onto the guide rod.
[0026] By adopting the above technical solution, the feeding component can automatically transport the steel pipes to be inspected sequentially to the conveying component, realizing automated feeding, reducing manual intervention, and improving overall inspection efficiency. Specifically, the design of the bearing surface of the second bearing frame being inclined to the horizontal plane allows the steel pipes to be inspected to naturally arrange themselves on the second bearing frame under the action of gravity and gather towards the lower position of the bearing surface of the second bearing frame. Each time the output end of the second telescopic drive extends, it pushes the steel pipe located at the lowest position of the bearing surface onto the guide rod. The design of the guide rod being inclined to the horizontal plane allows the steel pipe to fall onto the guide rod and smoothly roll onto the guide roller under the guidance of the guide rod, thereby realizing automatic feeding of the steel pipes. This allows the conveying component to continuously acquire and transport the steel pipes to be inspected, improving the efficiency of steel pipe inspection and reducing the tedious operation and time cost of manual feeding.
[0027] In summary, this application includes the following beneficial technical effects: 1. This reduces water residue on the steel pipe after testing, improving testing efficiency. Specifically, during ultrasonic testing of the steel pipe, the drive slide moves closer to the testing assembly. During this process, the sealing plug abuts against and seals the end of the steel pipe furthest from the testing assembly, while simultaneously driving the steel pipe to slide along its length towards the testing assembly on the guide roller. At this time, an external air source is activated, continuously supplying high-pressure gas into the inner cavity of the steel pipe through the jet channel. This high-pressure gas is ejected from the end of the steel pipe furthest from the sealing plug, preventing water sprayed by the testing assembly from entering the inner cavity of the steel pipe from that end. Conversely, when the end of the steel pipe closest to the sealing plug enters the testing assembly, the sealing plug further prevents water sprayed by the testing assembly from entering the inner cavity of the steel pipe from that end. Furthermore, after testing a single steel pipe, the drive slide moves away from the testing assembly to reset, allowing the next steel pipe to be tested. The entire testing process does not require sealing the openings at both ends of the steel pipe with a sealing cap, eliminating the tedious steps of disassembling and assembling the sealing cap. The fully automated design improves the testing efficiency of the steel pipe. 2. After the steel pipe slides past the detection assembly, the end of the steel pipe furthest from the sealing plug will insert into the inner cavity of the casing from the open end. Due to the casing's open-end-closed-end design, high-pressure air ejected from the end of the steel pipe furthest from the sealing plug will pass through the gap between the casing and the steel pipe before being ejected from the open end of the casing. This effectively blows away residual water on the outer wall of the steel pipe, reducing water residue. The universal ball joint on the inner wall of the casing acts as a support for the steel pipe after it is inserted into the casing, preventing direct contact between the steel pipe and the inner wall of the casing and thus avoiding scratches. It also maintains a uniform gap between the steel pipe and the inner wall of the casing, allowing the high-pressure air to act more evenly on the outer wall of the steel pipe during the blowing process, improving the blowing effect on residual water on the outer wall of the steel pipe. 3. The casing is designed with separable first and second halves. During inspection, the first telescopic drive moves the second half closer to the first half to form a complete casing, supporting the inspected portion of the steel pipe and deflecting the high-pressure gas ejected from the casing to purge residual water from the outer wall of the steel pipe. Once the steel pipe has been fully inspected, the first telescopic drive moves the second half away from the first half, allowing the steel pipe to automatically fall from between the second and first halves onto the first support frame for stacking, thus achieving automatic unloading. This process reduces manual operation, thereby improving the overall inspection efficiency of the steel pipe. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0029] Figure 2 This mainly showcases the carrier component in the embodiments of this application.
[0030] Figure 3 This application mainly showcases the detection component and clamping component in its embodiments.
[0031] Explanation of reference numerals in the attached figures: 100. Steel pipe; 1. Frame; 2. Detection assembly; 21. Detection box; 211. Detection channel; 212. Drain hole; 22. Ultrasonic sensor; 23. Nozzle; 24. Water pump; 25. Water tank; 3. Conveying assembly; 31. Guide roller; 32. Slide; 33. Drive component; 34. Sealing plug; 341. Air jet channel; 4. Bearing assembly; 41. Sleeve; 411. First half-pipe section; 412. Second half-pipe section 42. Omnidirectional ball; 43. First support frame; 44. First telescopic drive component; 45. Buffer pad; 46. Electric heating wire; 5. Clamping assembly; 51. First clamping arm; 52. Second clamping arm; 53. Third clamping arm; 54. First connecting rod; 55. Second connecting rod; 56. Lead screw; 57. Roller; 58. Handwheel; 6. Feeding assembly; 61. Second support frame; 62. Guide rod; 63. Second telescopic drive component. Detailed Implementation
[0032] The following combination Figures 1-3 This application will be described in further detail.
[0033] This application discloses an automated ultrasonic testing device for steel pipes.
[0034] Reference Figure 1 and Figure 2 In this embodiment, the automated ultrasonic testing device for steel pipes includes a frame 1, a testing component 2, a conveying component 3, a bearing component 4, a clamping component 5, and a feeding component 6.
[0035] The frame 1 provides a mounting base for other components. The frame 1 is constructed entirely of welded steel plates, steel pipes, and angle iron, providing high strength and stability. The detection assembly 2, conveying assembly 3, and load-bearing assembly 4 are all mounted on the frame 1, with the conveying assembly 3 and load-bearing assembly 4 located on opposite sides of the detection assembly 2. The detection assembly 2 sprays water onto the outer wall of the steel pipe 100 to form a water film and uses ultrasonic waves to inspect the steel pipe 100, detecting the location, size, and type of defects on the pipe wall. The conveying assembly 3 transports the steel pipes 100 to be inspected one by one into the detection assembly 2. The load-bearing assembly 4 supports the inspected steel pipes 100.
[0036] Specifically, the conveying assembly 3 is used to convey the steel pipes 100 to be inspected one by one to the inspection assembly 2. The conveying assembly 3 includes multiple guide rollers 31, a slide block 32, a drive component 33, and a sealing plug 34. The multiple guide rollers 31 are arranged in a linear array in two rows. The two rows of guide rollers 31 are used to roll against both sides of the steel pipe 100 and support the steel pipe 100. The rotation axis of the guide rollers 31 is perpendicular to the length direction of the steel pipe 100. The guide rollers 31 are made of rubber to increase the friction with the steel pipe 100 and ensure the stable conveying of the steel pipe 100.
[0037] The slide block 32 is slidably connected to the frame 1 along the conveying direction of the steel pipe 100 through a sliding engagement with a slide rail fixedly mounted on the frame 1; the conveying direction of the steel pipe 100 is parallel to the length direction of the steel pipe 100. The driving component 33 is a motor, which is fixedly mounted on the slide block 32. A gear is mounted on the output shaft of the motor, and a rack is fixedly mounted on the frame 1 along its own length direction, meshing with the gear on the motor's output shaft. When the motor drives the gear to rotate, it can drive the slide block 32 to slide along the length direction of the steel pipe 100 on the frame 1.
[0038] The sealing plug 34 is mounted on the slide 32 and is made of elastic rubber to ensure a good seal with the steel pipe 100. The sealing plug 34 has a jet channel 341 that connects to an external high-pressure air source and is used to input gas into the inner cavity of the steel pipe 100. The external air source can be a compressed air cylinder with a pressure reducing valve or an air compressor. When the slide 32 slides towards the detection component 2, the sealing plug 34 abuts against and seals the end of the steel pipe 100 away from the detection component 2, causing the steel pipe 100 to slide past the detection component 2 and be supported by the bearing component 4.
[0039] Thus, during ultrasonic testing of the steel pipe 100, the drive unit 33 first drives the slide 32 closer to the testing assembly 2, causing the sealing plug 34 to abut against and seal the end of the steel pipe 100 away from the testing assembly 2. Simultaneously, the steel pipe 100 slides along its length towards the testing assembly 2 on the guide roller 31. At this time, an external air source is activated, continuously supplying high-pressure gas into the inner cavity of the steel pipe 100 through the jet channel 341. This high-pressure gas is ejected from the end of the steel pipe 100 away from the sealing plug 34, preventing water sprayed by the testing assembly 2 from entering the inner cavity of the steel pipe 100 from the end away from the sealing plug 34 after the end of the steel pipe 100 away from the sealing plug 34 enters the testing assembly 2. Conversely, when the end of the steel pipe 100 near the sealing plug 34 enters the testing assembly 2, the sealing plug 34 again prevents water sprayed by the testing assembly 2 from entering the inner cavity of the steel pipe 100 from the end near the sealing plug 34. Furthermore, after the inspection of a single steel pipe 100 is completed, the drive component 33 drives the slide 32 away from the inspection component 2 to reset, so that the inspected steel pipe 100 is supported by the bearing component 4, and the inspection of the next steel pipe 100 can continue. Throughout the entire inspection process, there is no need to seal the openings at both ends of the steel pipe 100 with a sealing cap, thus preventing water from entering the interior of the steel pipe 100. At the same time, the elimination of the cumbersome disassembly and assembly steps of the sealing cap and the fully automated design improve the inspection efficiency of the steel pipe 100.
[0040] Reference Figure 1 and Figure 2In this embodiment, the detection component 2 includes a detection box 21, an ultrasonic sensor 22, a nozzle 23, a water pump 24, and a water tank 25. The detection box 21 is a rectangular stainless steel box, which is fixedly mounted on the frame 1. A detection channel 211 is provided on both sides of the detection box 21 for the steel pipe 100 to pass through. The extension direction of the detection channel 211 is parallel to the length direction of the steel pipe 100. The ultrasonic sensor 22 and the nozzle 23 are both installed inside the detection box 21. The ultrasonic sensor 22 can rotate circumferentially around the central axis of the detection channel 211 to perform comprehensive detection of the outer circumference of the steel pipe 100 during transport. Multiple nozzles 23 are arranged in a circumferential array along the central axis of the detection channel 211 to form a uniform water film on the outer circumferential surface of the steel pipe 100. The specific number of nozzles 23 can be adjusted according to actual needs.
[0041] Water tank 25 is used to store testing water. Water pump 24 is installed inside water tank 25. The outlet of water pump 24 is connected to the inlet of nozzle 23 through a pipe. The bottom of test box 21 is provided with drain hole 212. One end of drain hole 212 is connected to the inner cavity of test box 21, and the other end is connected to water tank 25 through a pipe.
[0042] In this way, the detection component 2 can perform ultrasonic testing on the steel pipe 100. Specifically, the water tank 25 can store the water required for testing, and the water pump 24 delivers the water from the water tank 25 to the nozzle 23, causing the nozzle 23 to spray water onto the outer wall of the steel pipe 100. This forms a uniform water film on the outer wall of the steel pipe 100 to conduct sound waves, allowing the high-frequency sound waves emitted by the ultrasonic sensor 22 to efficiently penetrate into the interior of the steel pipe 100, thereby achieving the function of ultrasonic testing of the steel pipe 100. The ultrasonic sensor 22 can emit ultrasonic waves onto the outer wall of the steel pipe 100 and analyze the echo to determine the location, size, and nature of defects in the steel pipe 100. The detection box 21 provides protection for the ultrasonic sensor 22 and the nozzle 23, reducing the probability of damage caused by external interference. It also prevents the water sprayed by the nozzle 23 from scattering and collects the water sprayed by the nozzle 23 before draining it into the water tank 25 through the drain hole 212, achieving water recycling and reducing water waste.
[0043] Reference Figure 1 and Figure 2In this embodiment, the bearing assembly 4 includes a sleeve 41, multiple universal balls 42, a first bearing frame 43, and a first telescopic drive component 44. The sleeve 41 is mounted on the frame 1 and located on the side of the detection assembly 2 away from the conveying assembly 3; the end of the sleeve 41 near the detection assembly 2 is open, and the end of the sleeve 41 away from the detection assembly 2 is closed. The sleeve 41 is cylindrical in shape and coaxial with the steel pipe 100; the inner diameter of the sleeve 41 is larger than the outer diameter of the steel pipe 100 to be detected, and the steel pipe 100 can be inserted into the inner cavity of the sleeve 41 from the open end after sliding past the detection assembly 2.
[0044] Multiple omnidirectional balls 42 are disposed on the inner wall of the sleeve 41, for rolling contact with the outer wall of the steel pipe 100 after the steel pipe 100 enters the inner cavity of the sleeve 41. The sleeve 41 includes a first half-tube portion 411 and a second half-tube portion 412, which are arranged in a vertically mirror image and respectively constitute half of the sleeve 41 structure. The first half-tube portion 411 is fixedly connected to the frame 1, and the second half-tube portion 412 is hinged to the first half-tube portion 411.
[0045] The first support frame 43 is disposed on the side of the sleeve 41 to receive the inspected steel pipe 100. The first telescopic drive member 44 is used to drive the second half-pipe section 412 to move closer to or away from the first half-pipe section 411. The first telescopic drive member 44 can be selected from one of electric push rod, hydraulic push rod, and pneumatic push rod. One end of the first telescopic drive member 44 is hinged to the frame 1, and the other end of the first telescopic drive member 44 is hinged to the second half-pipe section 412. When the second half-pipe section 412 and the first half-pipe section 411 are close together, they can form a complete sleeve 41. When the second half-pipe section 412 and the first half-pipe section 411 are far apart, the steel pipe 100 located between the second half-pipe section 412 and the first half-pipe section 411 can fall onto the first support frame 43.
[0046] In this way, when inspecting the steel pipe 100, the first telescopic drive 44 drives the second half-pipe 412 to approach the first half-pipe 411 to form a complete sleeve 41. After the steel pipe 100 slides past the inspection component 2, the end of the steel pipe 100 away from the sealing plug 34 will be inserted into the inner cavity of the sleeve 41 from the open end. Due to the design of the sleeve 41, which is open at one end and closed at the other, high-pressure air is ejected from the end of the steel pipe 100 away from the sealing plug 34, passes through the gap between the sleeve 41 and the steel pipe 100, and is then ejected from the open end of the sleeve 41, thereby blowing away residual water on the outer wall of the steel pipe 100 and reducing water residue on the outer wall of the steel pipe 100. The universal ball 42 on the inner wall of the sleeve 41 can support the steel pipe 100 after it is inserted into the sleeve 41, preventing the steel pipe 100 from directly contacting the inner wall of the sleeve 41 and scratching the steel pipe 100; and maintaining a uniform gap between the steel pipe 100 and the inner wall of the sleeve 41.
[0047] After the steel pipe 100 has been fully inspected, the first telescopic drive component 44 is controlled to drive the second half-pipe 412 away from the first half-pipe 411, so that the steel pipe 100 can automatically fall from between the second half-pipe 412 and the first half-pipe 411 and be stacked on the first support frame 43, thereby realizing the automatic unloading of the steel pipe 100.
[0048] Preferably, a buffer pad 45 is provided on the bearing surface of the first bearing frame 43. The bearing surface of the first bearing frame 43 is inclined to the horizontal plane, and the side of the bearing surface of the first bearing frame 43 that is higher than the horizontal plane is closer to the sleeve 41, while the side of the bearing surface of the first bearing frame 43 that is lower than the horizontal plane is farther away from the sleeve 41.
[0049] In this way, the buffer pad 45 can cushion the steel pipe 100 when it falls onto the first support frame 43, preventing damage caused by hard contact between the steel pipe 100 and the first support frame 43. The design of the bearing surface of the first support frame 43 being inclined to the horizontal plane allows the steel pipe 100 to slide naturally along the inclined bearing surface under its own weight and arrange itself orderly on the first support frame 43, facilitating subsequent collection and handling of the steel pipe 100 and improving the processing efficiency after the steel pipe 100 is inspected.
[0050] Preferably, an electric heating wire 46 is provided on the inner wall of the sleeve 41; the length of the sleeve 41 is greater than the length of the steel pipe 100.
[0051] In this way, the electric heating wire 46 can heat the steel pipe 100 that enters the sleeve 41, accelerate the evaporation of moisture on the surface of the steel pipe 100, and further reduce the residual water on the steel pipe 100 after testing. The length of the sleeve 41 is greater than the length of the steel pipe 100, so that the steel pipe 100 can be completely placed in the inner cavity of the sleeve 41. On the one hand, this ensures that when the high-pressure air flows from the gap between the steel pipe 100 and the sleeve 41, it can sweep to all parts of the outer wall of the steel pipe 100; on the other hand, it ensures that the electric heating wire 46 can heat all parts of the steel pipe 100.
[0052] Reference Figure 2 and Figure 3 In this embodiment, the clamping assembly 5 is installed on the detection box 21 to clamp the steel pipe 100; there are two clamping assemblies 5, which are located at both ends of the detection channel 211. The clamping assembly 5 includes a first clamping arm 51, a second clamping arm 52, a third clamping arm 53, a first connecting rod 54, a second connecting rod 55, and a lead screw 56.
[0053] The first clamping arm 51, the second clamping arm 52, and the third clamping arm 53 are all rotatably connected to the detection box 21, and the rotation axes of the first clamping arm 51, the second clamping arm 52, and the third clamping arm 53 are parallel to the length direction of the steel pipe 100. Each of the ends of the first clamping arm 51, the second clamping arm 52, and the third clamping arm 53 near the detection channel 211 is provided with rollers 57 for rolling contact with the outer wall of the steel pipe 100, and the rotation axes of the rollers 57 are also parallel to the length direction of the steel pipe 100.
[0054] One end of the first connecting rod 54 is hinged to the first clamping arm 51, and the other end is hinged to the second clamping arm 52. One end of the second connecting rod 55 is hinged to the second clamping arm 52, and the other end is hinged to the third clamping arm 53. The lead screw 56 is rotatably connected to the detection box 21 via a bearing bracket, and the lead screw 56 is threadedly connected to the third clamping arm 53. Rotating the lead screw 56 can cause the ends of the first clamping arm 51, the second clamping arm 52, and the third clamping arm 53 to move closer to or further away from the central axis of the detection channel 211 by equal values.
[0055] In this way, the clamping assembly 5 can restrict the displacement of the steel pipe 100 except for sliding along its own length, thereby reducing the shaking and deviation of the steel pipe 100 during the sliding process through the detection assembly 2, and improving the accuracy and stability of the detection. At the same time, the clamping assembly 5 can also flexibly clamp steel pipes 100 of different diameters, adapting to the detection needs of various specifications of steel pipes 100.
[0056] Preferably, a handwheel 58 is coaxially fixedly mounted on the lead screw 56. The handwheel 58 can extend the lever arm when rotating the lead screw 56, making the operation of rotating the lead screw 56 more labor-saving and convenient for the operator to rotate the lead screw 56.
[0057] Reference Figure 1 and Figure 2 In this embodiment, the feeding assembly 6 is disposed on the side of the conveying assembly 3. The feeding assembly 6 includes a second support frame 61, a guide rod 62, and a second telescopic drive member 63. The second support frame 61 is used to support and arrange the steel pipes 100 to be tested, and the support surface of the second support frame 61 is inclined to the horizontal plane. The guide rod 62 is inclined to the horizontal plane and fixed on the side of the second support frame 61 that is lower than the horizontal plane. The lower end of the guide rod 62 extends above the guide roller 31, and the upper end of the guide rod 62 extends above the support surface of the second support frame 61. When the second support frame 61 supports the steel pipes 100, the side wall of the guide rod 62 located on its own upper end can abut against the steel pipe 100 at the lowest position on the second support frame 61 to prevent the steel pipes 100 from slipping off the second support frame 61.
[0058] The second telescopic drive member 63 can also be selected from one of electric push rod, hydraulic push rod and pneumatic push rod. The second telescopic drive member 63 is fixedly installed on the side of the second support frame 61 that is lower than the horizontal plane. When the output end of the second telescopic drive member 63 extends, it can push the steel pipe 100 located at the lowest position on the support surface of the second support frame 61 to the guide rod 62.
[0059] In this way, the feeding component 6 can automatically convey the steel pipes 100 to be inspected sequentially to the conveying component 3, realizing automated feeding. Specifically, the design of the bearing surface of the second bearing frame 61 being inclined to the horizontal plane allows the steel pipes 100 to be inspected to naturally arrange themselves on the second bearing frame 61 under the action of gravity and gather towards the lower position of the bearing surface of the second bearing frame 61. Each time the output end of the second telescopic drive component 63 extends, it can push the steel pipe 100 located at the lowest position of the bearing surface onto the guide rod 62. The design of the guide rod 62 being inclined to the horizontal plane allows the steel pipe 100 to fall onto the guide rod 62 and smoothly roll onto the guide roller 31 under the guidance of the guide rod 62, thereby realizing the automatic feeding of the steel pipe 100. This allows the conveying component 3 to continuously acquire and convey the steel pipes 100 to be inspected, improving the efficiency of steel pipe 100 inspection.
[0060] The implementation principle of the automated ultrasonic testing device for steel pipes in this application embodiment is as follows: When performing ultrasonic testing on the steel pipe 100, the driving component 33 is first controlled to drive the slide 32 closer to the testing component 2, so that the sealing plug 34 abuts against and seals the end of the steel pipe 100 away from the testing component 2. At the same time, the steel pipe 100 is driven to slide along its own length direction towards the testing component 2 on the guide roller 31. At this time, the external air source is turned on and high-pressure gas is continuously input into the inner cavity of the steel pipe 100 through the jet channel 341, so that the high-pressure gas is ejected from the end of the steel pipe 100 away from the sealing plug 34. After the end of the steel pipe 100 away from the sealing plug 34 enters the testing component 2, it prevents the water sprayed by the testing component 2 onto the steel pipe 100 from entering the inner cavity of the steel pipe 100 from the end of the steel pipe 100 away from the sealing plug 34. When the end of the steel pipe 100 near the sealing plug 34 enters the detection assembly 2, the sealing plug 34 prevents water sprayed from the detection assembly 2 from entering the inner cavity of the steel pipe 100 from the end near the sealing plug 34. As the steel pipe 100 slides through the detection assembly 2, the end of the steel pipe 100 furthest from the sealing plug 34 continuously inserts into the inner cavity of the sleeve 41 from its open end. Due to the open-end and closed-end design of the sleeve 41, high-pressure air ejected from the end of the steel pipe 100 furthest from the sealing plug 34 passes through the gap between the sleeve 41 and the steel pipe 100, and then ejects from the open end of the sleeve 41, thus blowing away residual water on the outer wall of the steel pipe 100 and reducing water residue on the outer wall of the steel pipe 100. Furthermore, after the inspection of a single steel pipe 100 is completed, the drive component 33 drives the slide 32 away from the inspection assembly 2 to reset, and the first telescopic drive component 44 drives the second half-pipe 412 away from the first half-pipe 411, so that the steel pipe 100 can automatically fall from between the second half-pipe 412 and the first half-pipe 411 onto the first support frame 43 for stacking. After the steel pipe 100 is automatically unloaded, the inspection of the next steel pipe 100 can continue. In the entire inspection process, there is no need to use a sealing cap to seal the openings at both ends of the steel pipe 100, which can also prevent water from entering the interior of the steel pipe 100; at the same time, the elimination of the cumbersome disassembly and assembly steps of the sealing cap and the fully automated design improve the inspection efficiency of the steel pipe 100.
[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An automated steel pipe ultrasonic testing apparatus, characterized by, The utility model relates to a steel pipe detection device, including: Rack (1); Detection assembly (2) are set up on rack (1), for spray water to the outer wall of steel pipe (100) and utilize ultrasonic wave to steel pipe (100) are detected; Conveying assembly (3) are set up on rack (1), for conveying the steel pipe (100) of detection to detection assembly (2);Conveying assembly (3) include multiple guide rollers (31), sliding seat (32) and block plug (34);Multiple guide rollers (31) are used for rolling abutment both sides of steel pipe (100) and carry steel pipe (100);Sliding seat (32) are slidably connected on rack (1) along the feed direction of steel pipe (100);Block plug (34) are connected with sliding seat (32) and are used for blocking the end of steel pipe (100) away from detection assembly (2), and the gas injection channel (341) for the gas input of the inner chamber of steel pipe (100) is set up on block plug (34) and is connected with external gas source;Sliding seat (32) are driven and steel pipe (100) are driven along the feed direction via block plug (34).
2. The automated steel pipe ultrasonic testing device of claim 1, wherein: The side of detection assembly (2) away from conveying assembly (3) is equipped with the bearing assembly (4) for carrying the steel pipe (100) after detection, and the bearing assembly (4) includes sleeve (41) and multiple universal ball (42);Sleeve (41) are set up on rack (1), and one end of sleeve (41) is closed;Steel pipe (100) can be inserted into the inner chamber of sleeve (41) after sliding through detection assembly (2) from the open end of sleeve (41);Multiple universal ball (42) are set up on the inner wall of sleeve (41) and are used for rolling abutement with the outer wall of steel pipe (100).
3. The automated steel pipe ultrasonic testing device of claim 2, wherein: Sleeve (41) includes first half pipe part (411) and second half pipe part (412);First half pipe part (411) is connected on rack (1), and second half pipe part (412) is movably arranged relative to first half pipe part (411);Bearing assembly (4) further includes first bearing frame (43) and first telescopic drive (44);First bearing frame (43) is used for carrying the steel pipe (100) after detection, and first telescopic drive (44) is used for driving second half pipe part (412) to be close to or away from first half pipe part (411);Second half pipe part (412) can form sleeve (41) after being close to first half pipe part (411), and steel pipe (100) located between second half pipe part (412) and first half pipe part (411) can fall on first bearing frame (43) after second half pipe part (412) is away from first half pipe part (411).
4. The automated steel pipe ultrasonic testing device of claim 3, wherein: The bearing surface of first bearing frame (43) is equipped with buffer pad (45);The bearing surface of first bearing frame (43) is inclined to horizontal plane, and the side of the bearing surface of first bearing frame (43) relative to horizontal plane is close to sleeve (41), and the side of the bearing surface of first bearing frame (43) relative to horizontal plane is away from sleeve (41).
5. The automated steel pipe ultrasonic testing device of claim 2, wherein: The length of the sleeve (41) is greater than or equal to the length of the steel pipe (100); and the inner wall of the sleeve (41) is provided with an electric heating wire (46).
6. The automated steel pipe ultrasonic testing device of claim 1, wherein: The detection assembly (2) comprises a detection box (21), an ultrasonic sensor (22), a spray head (23), a water pump (24) and a water tank (25); the detection box (21) is installed on the rack (1), and a detection channel (211) for the steel pipe (100) to pass through is formed through the detection box (21) from both sides thereof; the ultrasonic sensor (22) and the spray head (23) are both installed in the detection box (21); the water tank (25) is used for storing water for detection, and the water pump (24) is used for pumping water in the water tank (25) to the spray head (23) to make water sprayed from the spray head (23).
7. The automated steel pipe ultrasonic testing device of claim 6, wherein: The bottom of the detection box (21) is provided with a drain hole (212) which is in communication with the inner cavity of the detection box (21) at one end and is in communication with the water tank (25) through a pipeline at the other end.
8. The automated steel pipe ultrasonic testing device of claim 6, wherein: The detection box (21) is provided with a clamping assembly (5) for clamping the steel pipe (100), and the clamping assembly (5) comprises a first clamping arm (51), a second clamping arm (52), a third clamping arm (53), a first connecting rod (54), a second connecting rod (55) and a lead screw (56); the first clamping arm (51), the second clamping arm (52) and the third clamping arm (53) are all rotatably connected to the detection box (21); the first clamping arm (51) is close to one end of the detection channel (211), the second clamping arm (52) is close to one end of the detection channel (211), and the third clamping arm (53) is close to one end of the detection channel (211), and each is provided with a roller (57) for rolling abutment with the outer wall of the steel pipe (100); one end of the first connecting rod (54) is hingedly connected to the first clamping arm (51), and the other end is hingedly connected to the second clamping arm (52); one end of the second connecting rod (55) is hingedly connected to the second clamping arm (52), and the other end is hingedly connected to the third clamping arm (53); the lead screw (56) is rotatably connected to the detection box (21), and the lead screw (56) is threadedly connected with the third clamping arm (53); rotating the lead screw (56) can drive the first clamping arm (51) close to one end of the detection channel (211), the second clamping arm (52) close to one end of the detection channel (211) and the third clamping arm (53) close to one end of the detection channel (211) to move towards or away from the central axis of the detection channel (211) by the same value.
9. The automated steel pipe ultrasonic testing apparatus of claim 6, wherein: The ultrasonic sensor (22) can rotate around the central axis of the detection channel (211).
10. The automated steel pipe ultrasonic testing device of claim 1, wherein: The conveying assembly (3) is provided with a feeding assembly (6) on the side, the feeding assembly (6) comprises a second bearing frame (61), a guide rod (62) and a second telescopic driving element (63); the second bearing frame (61) is used for bearing and arranging the steel pipes (100) to be detected, the bearing surface of the second bearing frame (61) is inclined to the horizontal plane; the guide rod (62) is connected to the second bearing frame (61) and is inclined to the horizontal plane, the low end of the guide rod (62) extends above the guide roller (31), and the high end of the guide rod (62) extends above the bearing surface of the second bearing frame (61); the second telescopic driving element (63) is installed on the second bearing frame (61), and when the output end of the second telescopic driving element (63) is stretched out, the steel pipe (100) located at the lowest position on the bearing surface of the second bearing frame (61) can be pushed to the guide rod (62).