Seamless steel tube flaw detection device

Abstract

The invention relates to the technical field of seamless steel tube detection, and particularly discloses a seamless steel tube flaw detection device which comprises a base and a fixing ring. The fixed ring is vertically mounted on the top surface of the base, and one end surface of the fixed ring is coaxially and rotatably connected with a rotating ring; an ultrasonic flaw detector is arranged on the inner wall of the rotating ring; a driving mechanism capable of driving the rotating ring to rotate is arranged on the outer wall of the fixed ring; a pair of supporting frames located outside the two sides of the fixing ring are arranged on the top face of the base. The two supporting frames are each provided with a feeding mechanism capable of conveying steel pipes. Through cooperative work of the feeding mechanism and the driving mechanism, the ultrasonic flaw detection detector can automatically complete flaw detection work on the whole steel pipe in the continuous feeding and advancing process of the steel pipe, so that the trouble of manual flaw detection is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of seamless steel pipe detection, in particular to a seamless steel pipe flaw detection device. Background Art

[0002] Seamless steel pipe is a steel pipe with no welds on the surface, which is made by perforating a whole round steel. Seamless steel pipe can not only be used as a transmission pipe, but also is widely used in the manufacture of mechanical parts. In the rapidly developing industrial process, the emergence of seamless steel pipe not only greatly shortens the processing time, but also can make more efficient use of materials and save manufacturing materials. Ultrasonic flaw detection, as an important detection technology in the production of seamless steel pipe, has become an important indicator for industry screening.

[0003] In the prior art, when ultrasonic flaw detection is performed on seamless steel pipes, a human handheld ultrasonic probe needs to be moved. However, this detection method is not only inefficient, but also overly dependent on manual experience, resulting in large errors and low accuracy in the detection results. Summary of the invention

[0004] The present application provides a seamless steel pipe flaw detection device, which has the function of automatically performing ultrasonic flaw detection on the steel pipe, improving the flaw detection efficiency, and ensuring the accuracy and reliability of the detection results.

[0005] The present application provides a seamless steel pipe flaw detection device, which adopts the following technical solution: A seamless steel pipe flaw detection device comprises a base and a fixed ring; the fixed ring is vertically mounted on the top surface of the base, and a rotating ring is coaxially rotatably connected to one end surface of the fixed ring; an ultrasonic flaw detector is arranged on the inner wall of the rotating ring; a driving mechanism for driving the rotating ring to rotate is arranged on the outer wall of the fixed ring; a pair of support frames respectively located outside of both sides of the fixed ring are arranged on the top surface of the base; a feeding mechanism for conveying steel pipes is arranged on each of the pair of support frames.

[0006] By adopting the above technical scheme, the steel pipe is placed on the support frame on the side of the rotating ring away from the fixed ring, and the steel pipe is transported by the feeding mechanism arranged thereon. When the part of the steel pipe to be inspected moves into the rotating ring, the ultrasonic flaw detector performs flaw detection on the steel pipe, and drives the rotating ring to rotate through the driving mechanism, so that the ultrasonic flaw detector rotates around the outer circumference of the steel pipe for detection, thereby reducing the trouble of manual flaw detection and improving the efficiency of flaw detection and the accuracy of detection results. When the inspected end of the steel pipe gradually passes through the fixed ring, the steel pipe is assisted in transportation by the feeding mechanism on the support frame on the other side to ensure the stability of the steel pipe feeding and transportation.

[0007] Preferably, the feeding mechanism includes a driving motor, a chain and a plurality of conveying rollers; the plurality of conveying rollers are horizontally rotatably connected to the inner wall of the support frame, and the plurality of conveying rollers are arranged at intervals along the axial direction of the fixed ring; the driving motor is installed on the outer wall of the support frame, and the output end of the driving motor is coaxially fixed to one end of the conveying roller close to the end of the support frame; each of the conveying rollers is coaxially fixed to an end away from the driving motor with a sprocket; the chain is sleeved on the outside of the plurality of sprockets, and the chain links the plurality of sprockets.

[0008] By adopting the above technical solution, starting the drive motor can drive the conveying rollers coaxially arranged with the drive motor to rotate. With the cooperation of multiple sprockets and chains, multiple conveying rollers rotate synchronously, and the steel pipes placed on the conveying rollers are pushed forward by the friction force, thereby conveniently realizing the feeding and transportation of the steel pipes.

[0009] Preferably, the driving mechanism includes a first motor and a first gear; the first motor is mounted on the outer wall of the fixed ring; the first gear is coaxially fixed to the output end of the first motor; and a first gear ring meshing with the first gear is coaxially fixed to the outer peripheral surface of the rotating ring.

[0010] By adopting the above technical solution, the first motor is started to drive the first gear to rotate. Under the meshing cooperation of the first gear and the first gear ring, the first gear ring drives the rotating ring to rotate, prompting the ultrasonic flaw detector to rotate around the outer circumference to perform flaw detection on the steel pipe.

[0011] Preferably, a first electric push rod is installed on the end surface of the rotating ring away from the fixed ring through a connecting plate; a concave frame is fixedly connected to the output end of the first electric push rod; a brush roller is rotatably connected to the inner wall of the concave frame; bristles are arranged on the outer peripheral surface of the brush roller; a second motor is installed on the outer wall of the concave frame; the output end of the second motor is coaxially fixed to one end of the brush roller.

[0012] By adopting the above technical solution, the first electric push rod is started to drive the brush roller to move toward the center position of the rotating ring, so that the bristles on the outer circumference of the brush roller can contact the outer wall of the steel pipe. When the rotating ring drives the ultrasonic flaw detector to rotate, the second motor is started to drive the brush roller to rotate, so that the bristles move along the outer circumference of the steel pipe, clean the outer surface of the steel pipe to be inspected, remove dust and impurities adhering to the outer surface of the steel pipe, and ensure the accuracy and reliability of flaw detection.

[0013] Preferably, a tube body coaxial with the brush roller is rotatably connected to the inner side wall of the concave frame; a plurality of circular tubes spaced along the axial direction of the tube body are fixedly connected to the outer wall of the tube body; a first transmission assembly is provided at one end of the tube body; the first transmission assembly can enable the brush roller to drive the tube body to rotate so that the circular tubes come into contact with the bristles.

[0014] By adopting the above technical solution, when the brush roller drives the bristles to rotate to clean the surface of the steel pipe, the brush roller drives the tube body to rotate through the first transmission assembly, so that the round tube rotates to hit the bristles, causing impurities adhered to the bristles to fall off, reducing the possibility of impurities adhering to the bristles, and ensuring the cleaning effect of the bristles on the steel pipe.

[0015] Preferably, the first transmission assembly includes a second gear ring, a second gear and a third gear; the second gear ring is coaxially fixed to the outer wall of the end of the tube body close to the second motor; the second gear is coaxially fixed to the outer wall of the end of the brush roller close to the second motor; the third gear is rotatably connected to the inner wall of the concave frame, the third gear is located between the second gear ring and the second gear, and the third gear is meshed with the second gear ring and the second gear.

[0016] By adopting the above technical solution, the brush roller drives the second gear to rotate during the rotation process. Under the meshing cooperation of the second gear, the third gear and the second gear ring, the brush roller drives the tube body to rotate during the rotation process, thereby realizing the transmission of kinetic energy during the rotation of the brush roller, so as to enable the round tube to rotate and hit the bristles to remove impurities.

[0017] Preferably, the tube body is connected to the inside of the circular tube; an air nozzle connected to the circular tube is provided on the outer wall of the circular tube; a sleeve is fixedly connected to the side wall of the concave frame away from the second motor and is sleeved on the outside of the tube body and connected to the tube body; the sleeve is coaxially rotatable with the tube body, the end of the sleeve away from the tube body is open, and a rotating shaft with one end extending to the outside of the sleeve is coaxially rotatably connected to the inner wall of the sleeve; fan blades are provided on the outer wall of the rotating shaft located inside the sleeve, and a second transmission component that can enable the brush roller to drive the rotating shaft to rotate is provided on the outer wall of the end of the rotating shaft extending outside the sleeve.

[0018] By adopting the above technical solution, the brush roller drives the rotating shaft and the fan blades to rotate through the second transmission assembly during the rotation process. During the rotation of the fan blades, the external ambient air is sucked in through the open end of the sleeve and blown into the tube body. The gas blown into the tube body is finally ejected through the air nozzle. When the circular tube hits the bristles, the gas ejected from the air nozzle has a blowing and cleaning effect on the bristles, thereby improving the cleaning effect on the bristles.

[0019] Preferably, the second transmission assembly includes a first pulley, a second pulley and a belt; the first pulley is coaxially fixed to the outer wall of the end of the brush roller close to the sleeve; the second pulley is coaxially fixed to the outer wall of the end of the rotating shaft extending outside the sleeve; the belt is sleeved on the outside of the first pulley and the second pulley to link the first pulley and the second pulley.

[0020] By adopting the above technical solution, with the cooperation of the first pulley, the second pulley and the belt, the brush roller will drive the rotating shaft to rotate during the rotation process, thereby realizing the transmission of kinetic energy during the rotation of the brush roller and enabling the fan blades to rotate and blow air.

[0021] Preferably, a pair of frames respectively located at the top of two support frames are fixedly connected to the top surface of the base; a second electric push rod is vertically installed on the top wall of the frame; and the output end of the second electric push rod is rotatably connected to a limiting roller that can be pressed on the steel pipe.

[0022] By adopting the above technical solution, when the steel pipe is placed on the conveying roller for conveying, the second electric push rod is started to drive the limiting roller to move downward, prompting the limiting roller to be pressed on the top of the steel pipe to limit the steel pipe, thereby reducing the possibility of the steel pipe being offset during transportation and improving the stability of the steel pipe during transportation.

[0023] Preferably, a hydraulic push rod is vertically arranged on the base; and the output end of the hydraulic push rod is fixedly connected to the outer wall of the fixing ring.

[0024] By adopting the above technical solution, starting the hydraulic push rod can drive the fixed ring and the rotating ring to move in the vertical direction, and adjust the center position of the fixed ring and the rotating ring, so that steel pipes of different diameters can remain coaxial with the rotating ring when passing through the rotating ring for flaw detection, and the brush roller is kept at an equal distance from the surface of the steel pipe when moving along the outer circumference of the steel pipe, thereby ensuring the cleaning effect of the bristles on the outer surface of the steel pipe.

[0025] In summary, this application has the following beneficial effects: 1. The steel pipe is transported by a feeding mechanism located on a support frame on the side of the rotating ring away from the fixed ring. When the steel pipe moves into the rotating ring, the ultrasonic flaw detector performs flaw detection on the steel pipe, and drives the rotating ring to rotate through the driving mechanism, so that the ultrasonic flaw detector rotates around the outer circumference of the steel pipe to perform detection. In the process of continuous feeding and moving forward of the steel pipe, the ultrasonic flaw detector automatically completes the flaw detection work on the entire steel pipe, reducing the trouble of manual flaw detection and improving the flaw detection efficiency and the accuracy of the detection results; 2. Start the first electric push rod to drive the brush roller to move, so that the bristles can contact the outer wall of the steel pipe. When the rotating ring drives the ultrasonic flaw detector to rotate, the second motor drives the brush roller to rotate, and the bristles move along the outer circumference of the steel pipe to clean the outer surface of the steel pipe to be inspected, remove impurities adhering to the outer surface of the steel pipe, and ensure the accuracy and reliability of flaw detection; 3. During the rotation process, the brush roller drives the tube body to rotate through the first transmission assembly, so that the round tube rotates to hit the bristles, causing impurities adhering to the bristles to fall off, thereby ensuring the cleaning effect of the bristles on the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a seamless steel pipe flaw detection device; Figure 2 It is a schematic diagram of the matching structure of the fixed ring, the rotating ring and the driving mechanism in this application; Figure 3 It is a schematic diagram of the coordination structure of the support frame and the feeding mechanism in this application; Figure 4 It is a schematic diagram of the matching structure of the frame, the second electric push rod and the limiting roller in the present application; Figure 5 It is a schematic diagram of the matching structure of the rotating ring, the first electric push rod and the brush roller in the present application; Figure 6 It is a schematic diagram of the matching structure of the brush roller, the first transmission assembly and the tube body in the present application; Figure 7 It is a schematic diagram of the matching structure of the brush roller, the second transmission assembly and the rotating shaft in this application.

[0027] Description of the reference numerals: 1. base; 11. frame; 12. second electric push rod; 13. limiting roller; 14. hydraulic push rod; 2. fixed ring; 21. rotating ring; 22. first gear ring; 23. connecting plate; 3. ultrasonic flaw detector; 4. driving mechanism; 41. first motor; 42. first gear; 5. supporting frame; 6. feeding mechanism; 61. driving motor; 62. chain; 63. conveying roller; 64. sprocket; 7 , first electric push rod; 71, concave frame; 72, brush roller; 721, bristles; 73, second motor; 8, tube body; 81, round tube; 811, air nozzle; 82, first transmission assembly; 821, second gear ring; 822, second gear; 823, third gear; 83, sleeve; 84, rotating shaft; 841, fan blades; 85, second transmission assembly; 851, first pulley; 852, second pulley; 853, belt. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] The present invention discloses a seamless steel pipe flaw detection device, such as Figure 1 and Figure 2As shown, it includes a base 1, a fixed ring 2, a rotating ring 21 and a driving mechanism 4; the fixed ring 2 is vertically arranged on the top surface of the middle part of the base 1, the rotating ring 21 is coaxially rotatably connected to one end surface of the fixed ring 2, an ultrasonic flaw detector 3 is arranged on the inner wall of the rotating ring 21, a first gear ring 22 is coaxially fixedly connected to the outer circumference of the rotating ring 21, and the driving mechanism 4 is arranged on the outer wall of the fixed ring 2, the driving mechanism 4 includes a first motor 41 and a first gear 42, the first motor 41 is horizontally installed on the outer wall of the fixed ring 2, and the first motor 41 is a brake motor; the first gear 42 is coaxially fixedly connected to the output end of the first motor 41, the first gear 42 is meshed with the first gear ring 22, a pair of support frames 5 are arranged on the top surface of the base 1, the pair of support frames 5 are respectively located on the outside of the two sides in the axial direction of the fixed ring 2, and each support frame 5 is provided with a feeding mechanism 6 that can transport and move steel pipes.

[0030] The steel pipe is placed on the support frame 5 on the side of the rotating ring 21 away from the fixed ring 2, and the steel pipe is transported by the feeding mechanism 6 arranged thereon. When the part to be inspected on the steel pipe moves into the rotating ring 21, the ultrasonic flaw detector 3 inspects the steel pipe, and starts the first motor 41 to drive the first gear 42 to rotate. Under the meshing cooperation between the first gear 42 and the first gear ring 22, the rotating ring 21 drives the ultrasonic flaw detector 3 to rotate, so that the ultrasonic flaw detector 3 rotates around the steel pipe to perform flaw detection on the outer circumference of the steel pipe. When the entire steel pipe gradually passes through the rotating ring 21, the ultrasonic flaw detector 3 completes the automatic flaw detection work of the entire steel pipe. At this time, the inspected steel pipe can be transported by the feeding mechanism 6 located on the side of the fixed ring 2 away from the rotating ring 21.

[0031] like Figure 1 and Figure 3 As shown, the feeding mechanism 6 includes a driving motor 61, a chain 62, a plurality of conveying rollers 63 and a plurality of sprockets 64. The plurality of conveying rollers 63 are horizontally rotatably connected to the inner wall of the support frame 5. The plurality of conveying rollers 63 are coaxially evenly spaced along the length direction of the support frame 5. The diameters of the two ends of the conveying rollers 63 gradually decrease toward the middle position. The driving motor 61 is installed on the outer wall of the support frame 5. The driving motor 61 is a brake motor. The output end of the driving motor 61 is coaxially fixed to one end of a conveying roller 63 near the end of the support frame 5. The plurality of sprockets 64 are coaxially fixed to the outer walls of the ends of the plurality of conveying rollers 63 away from the driving motor 61. The chain 62 is sleeved on the outside of the plurality of sprockets 64. The chain 62 drives the plurality of sprockets 64 to work in conjunction.

[0032] Starting the drive motor 61 can drive the conveying roller 63 coaxially arranged with the drive motor 61 to rotate. With the cooperation of multiple sprockets 64 and chains 62, multiple conveying rollers 63 rotate synchronously, and the steel pipes on the conveying rollers 63 are pushed forward by the friction force, thereby conveniently realizing the feeding and transportation of the steel pipes.

[0033] like Figure 1 and Figure 2 As shown, a pair of hydraulic push rods 14 are vertically installed on the base 1 at positions corresponding to the fixed ring 2 , and the output ends of the pair of hydraulic push rods 14 are fixedly connected to the outer wall of the fixed ring 2 .

[0034] Starting the hydraulic push rod 14 can drive the fixed ring 2 and the rotating ring 21 to move in the vertical direction, and adjust the center positions of the fixed ring 2 and the rotating ring 21 so that steel pipes of different diameters can remain coaxial with the rotating ring 21 when passing through the rotating ring 21 for flaw detection, so that the ultrasonic flaw detector 3 is at an equal distance from the surface of the steel pipe when moving along the outer circumference of the steel pipe, which is convenient for flaw detection of steel pipes of different diameters.

[0035] like Figure 1 and Figure 4 As shown, a pair of frames 11 respectively located on the top of the two support frames 5 are fixedly connected to the top surface of the base 1, and second electric push rods 12 are vertically installed on the top walls of the two frames 11. The output end of the second electric push rod 12 is rotatably connected to a limiting roller 13, and the diameter of the limiting roller 13 at both ends gradually decreases toward the middle position. The second electric push rod 12 can drive the limiting roller 13 to move downward and be pressed on the steel pipe.

[0036] When the steel pipe is being transported, the second electric push rod 12 can be started to drive the limiting roller 13 to move downward, so that the limiting roller 13 is pressed on the top of the steel pipe to limit the steel pipe, thereby reducing the possibility of the steel pipe being offset during transportation and improving the stability of the steel pipe during transportation.

[0037] like Figure 2 and Figure 5 As shown, a first electric push rod 7 is installed on the end surface of the rotating ring 21 away from the fixed ring 2 through a connecting plate 23; the output end of the first electric push rod 7 is arranged radially along the rotating ring 21 and points to the axis of the rotating ring 21, and a concave frame 71 is fixedly connected to the output end of the first electric push rod 7, and a second motor 73 is installed on the outer wall of the concave frame 71, and a brush roller 72 extending into the concave frame 71 is coaxially fixed to the output end of the second motor 73, and the brush roller 72 is rotatably matched with the inner wall of the concave frame 71, and bristles 721 are arranged on the outer circumferential surface of the brush roller 72.

[0038] During the flaw detection process of the steel pipe, the first electric push rod 7 can be started to drive the brush roller 72 to approach the steel pipe, causing the bristles 721 on the outer wall of the brush roller 72 to contact the outer wall of the steel pipe. Starting the second motor 73 can drive the brush roller 72 to rotate. During the rotation of the rotating ring 21, the brush roller 72 rotates while moving around the outer circumference of the steel pipe, causing the bristles 721 to clean the outer surface of the steel pipe to be inspected along the outer circumference of the steel pipe, remove impurities and dust adhering to the surface of the steel pipe, thereby reducing the possibility that impurities on the outer wall of the steel pipe will affect the detection results.

[0039] like Figure 5 and Figure 6 As shown, a tube body 8 coaxial with the brush roller 72 is rotatably connected to the inner wall of the concave frame 71, and a plurality of circular tubes 81 are fixedly connected to the two outer radial side walls of the tube body 8, and the plurality of circular tubes 81 are evenly spaced along the axial direction of the tube body 8. A first transmission assembly 82 that can drive the brush roller 72 to drive the tube body 8 to rotate is provided on the outer wall of the end of the tube body 8 close to the driving motor 61. The first transmission assembly 82 includes a second gear ring 821, a second gear 822 and a third gear 823. The second gear ring 821 is coaxially fixed to the outer wall of the end of the tube body 8 close to the driving motor 61, and the second gear 822 is coaxially fixed to the outer wall of the end of the brush roller 72 close to the driving motor 61. The third gear 823 is rotatably connected to the inner wall of the concave frame 71 located in the middle of the second gear ring 821 and the second gear 822, and the third gear 823 is respectively meshed with the second gear 822 and the second gear ring 821 located on both sides thereof.

[0040] During the rotation of the brush roller 72, the meshing cooperation of the second gear 822, the third gear 823 and the second gear ring 821 drives the tube body 8 to rotate, causing the circular tube 81 provided on the outer wall of the tube body 8 to rotate and hit the rotating bristles 721, so that impurities and dust adhering to the bristles 721 fall off, causing the bristles 721 to have a good cleaning effect on the outer wall of the steel pipe.

[0041] like Figure 5 , Figure 6 and Figure 7 As shown, a plurality of circular tubes 81 are connected to the interior of the tube body 8, and a plurality of air nozzles 811 connected to the circular tube 81 are arranged on the two radial outer walls of each circular tube 81. A sleeve 83 sleeved on the outside of the tube body 8 is fixedly connected to the side wall of the concave frame 71 away from the second motor 73. The sleeve 83 is coaxially rotatable with the tube body 8. The end of the sleeve 83 away from the tube body 8 is open. A filter is installed on the inner wall of the open end of the sleeve 83. A rotating shaft 84 is coaxially rotatably connected to the inner wall of the sleeve 83. A fan blade 841 located in the sleeve 83 is fixedly connected to the outer wall of the rotating shaft 84. A second transmission assembly 85 located outside the sleeve 83 is arranged at the end of the rotating shaft 84 away from the fan blade 841. The second transmission assembly 85 can make the brush roller 72 drive the rotating shaft 84 to rotate. The second transmission assembly 85 includes a first pulley 851, a second pulley 852 and a belt 853. The first pulley 851 is coaxially fixed to the outer wall of the end of the brush roller 72 away from the second motor 73. The second pulley 852 is coaxially fixed to the outer wall of the end of the rotating shaft 84 extending outside the sleeve 83. The diameter of the second pulley 852 is smaller than that of the first pulley 851. The belt 853 is tensioned and sleeved outside the first pulley 851 and the second pulley 852. The belt 853 links the first pulley 851 and the second pulley 852.

[0042] During the rotation process, the brush roller 72 drives the rotating shaft 84 and the fan blades 841 to rotate through the cooperation of the first pulley 851, the second pulley 852 and the belt 853. During the rotation process of the fan blades 841, external air is sucked in through the open end of the sleeve 83 and blown into the tube body 8 in the form of air flow. The air flow in the tube body 8 is then ejected through the air nozzle 811 on the circular tube 81. When the circular tube 81 hits the bristles 721, the gas ejected from the air nozzle 811 has a blowing and cleaning effect on the bristles 721, thereby improving the cleaning effect on the bristles 721.

[0043] Working principle: The steel pipe is placed on the support frame 5 on the side where the rotating ring 21 is located, and the steel pipe is supported by multiple conveying rollers 63 arranged on the support frame 5, and the second electric push rod 12 is started to drive the limit roller 13 to move down and press on the top of the steel pipe, and the driving motor 61 is started. Under the cooperation of multiple sprockets 64 and chains 62, multiple conveying rollers 63 rotate, and the steel pipe is pushed forward by the friction force and gradually approaches the rotating ring 21. During the steel pipe conveying process, the limit roller 13 limits and guides the steel pipe to reduce the possibility of the steel pipe being offset; when the part of the steel pipe to be detected moves to the rotating ring 21 When the first gear 42 is engaged with the first gear 42, the rotating ring 21 drives the ultrasonic flaw detector 3 to rotate, so that the ultrasonic flaw detector 3 rotates around the steel pipe to perform flaw detection on the outer circumference of the steel pipe. When the entire steel pipe gradually passes through the rotating ring 21, the ultrasonic flaw detector 3 completes the automatic flaw detection of the entire steel pipe. The feeding mechanism 6 located on the side of the fixed ring 2 away from the rotating ring 21 can be used to transport the steel pipe after the inspection. During the process of feeding and conveying the steel pipe for flaw detection, the first electric push rod 7 can be started to drive the brush roller 72 to approach the steel pipe, so that the bristles 721 are in contact with the outer wall of the steel pipe, and the second motor 73 is started to drive the brush roller 72 to rotate. When the rotating ring 21 drives the ultrasonic flaw detector 3 to rotate, the bristles 721 will move along the outer circumference of the steel pipe to clean the surface of the steel pipe to be inspected, remove impurities adhering to the surface of the steel pipe, reduce the possibility of impurities on the surface of the steel pipe affecting the detection results, and improve the accuracy and reliability of the flaw detection results.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A seamless steel pipe flaw detection device, characterized in that: The invention comprises a base (1) and a fixed ring (2); the fixed ring (2) is vertically mounted on the top surface of the base (1); a rotating ring (21) is coaxially rotatably connected to one end surface of the fixed ring (2); an ultrasonic flaw detector (3) is arranged on the inner wall of the rotating ring (21); a driving mechanism (4) capable of driving the rotating ring (21) to rotate is arranged on the outer wall of the fixed ring (2); a pair of support frames (5) respectively located outside the two sides of the fixed ring (2) are arranged on the top surface of the base (1); a feeding mechanism (6) capable of conveying steel pipes is arranged on each of the pair of support frames (5).

2. A seamless steel pipe flaw detection device according to claim 1, characterized in that: The feeding mechanism (6) comprises a driving motor (61), a chain (62) and a plurality of conveying rollers (63); the plurality of conveying rollers (63) are horizontally rotatably connected to the inner wall of the support frame (5), and the plurality of conveying rollers (63) are arranged at intervals along the axial direction of the fixing ring (2); the driving motor (61) is mounted on the outer wall of the support frame (5), and the output end of the driving motor (61) is coaxially fixedly connected to one end of the conveying roller (63) close to the end of the support frame (5); the end of each conveying roller (63) away from the driving motor (61) is coaxially fixedly connected to a sprocket (64); the chain (62) is sleeved outside the plurality of sprockets (64), and the chain (62) causes the plurality of sprockets (64) to move in a linked manner.

3. A seamless steel pipe flaw detection device according to claim 1, characterized in that: The driving mechanism (4) comprises a first motor (41) and a first gear (42); the first motor (41) is mounted on the outer wall of the fixed ring (2); the first gear (42) is coaxially fixed to the output end of the first motor (41); and a first gear ring (22) meshing with the first gear (42) is coaxially fixed to the outer peripheral surface of the rotating ring (21).

4. A seamless steel pipe flaw detection device according to claim 1, characterized in that: A first electric push rod (7) is mounted on the end surface of the rotating ring (21) away from the fixed ring (2) via a connecting plate (23); the output end of the first electric push rod (7) is fixedly connected to a concave frame (71); a brush roller (72) is rotatably connected to the inner wall of the concave frame (71); bristles (721) are arranged on the outer circumferential surface of the brush roller (72); a second motor (73) is mounted on the outer wall of the concave frame (71); the output end of the second motor (73) is coaxially fixedly connected to one end of the brush roller (72).

5. A seamless steel pipe flaw detection device according to claim 4, characterized in that: A tube body (8) coaxial with the brush roller (72) is rotatably connected to the inner wall of the concave frame (71); a plurality of circular tubes (81) arranged at intervals along the axial direction of the tube body (8) are fixedly connected to the outer wall of the tube body (8); a first transmission assembly (82) is provided at one end of the tube body (8); the first transmission assembly (82) can enable the brush roller (72) to drive the tube body (8) to rotate so as to cause the circular tubes (81) to contact the bristles (721).

6. A seamless steel pipe flaw detection device according to claim 5, characterized in that: The first transmission assembly (82) comprises a second gear ring (821), a second gear (822) and a third gear (823); the second gear ring (821) is coaxially fixed to the outer wall of the end of the tube body (8) close to the second motor (73); the second gear (822) is coaxially fixed to the outer wall of the end of the brush roller (72) close to the second motor (73); the third gear (823) is rotatably connected to the inner wall of the concave frame (71), the third gear (823) is located between the second gear ring (821) and the second gear (822), and the third gear (823) is meshed with the second gear ring (821) and the second gear (822).

7. A seamless steel pipe flaw detection device according to claim 6, characterized in that: The tube body (8) is connected to the inside of the circular tube (81); an air jet nozzle (811) connected to the circular tube (81) is arranged on the outer wall of the circular tube (81); a sleeve (83) is fixedly connected to the side wall of the concave frame (71) away from the second motor (73), which is sleeved outside the tube body (8) and connected to the tube body (8); the sleeve (83) and the tube body (8) are coaxially rotatable, one end of the sleeve (83) away from the tube body (8) is open, and a rotating shaft (84) with one end extending to the outside of the sleeve (83) is coaxially rotatably connected to the inner wall of the sleeve (83); a fan blade (841) is arranged on the outer wall of the rotating shaft (84) located inside the sleeve (83), and a second transmission assembly (85) is arranged on the outer wall of the end of the rotating shaft (84) extending outside the sleeve (83) so as to enable the brush roller (72) to drive the rotating shaft (84) to rotate.

8. A seamless steel pipe flaw detection device according to claim 7, characterized in that: The second transmission assembly (85) comprises a first pulley (851), a second pulley (852) and a belt (853); the first pulley (851) is coaxially fixed to the outer wall of the end of the brush roller (72) close to the sleeve (83); the second pulley (852) is coaxially fixed to the outer wall of the end of the rotating shaft (84) extending outside the sleeve (83); the belt (853) is sleeved on the outside of the first pulley (851) and the second pulley (852) to enable the first pulley (851) and the second pulley (852) to be linked.

9. A seamless steel pipe flaw detection device according to claim 1, characterized in that: A pair of frames (11) are fixedly connected to the top surface of the base (1) and are respectively located on the top of the two support frames (5); a second electric push rod (12) is vertically installed on the top wall of the frame (11); and a limiting roller (13) that can be pressed onto a steel pipe is rotatably connected to the output end of the second electric push rod (12).

10. A seamless steel pipe flaw detection device according to claim 1, characterized in that: A hydraulic push rod (14) is vertically arranged on the base (1); the output end of the hydraulic push rod (14) is fixedly connected to the outer wall of the fixing ring (2).

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