CN113484413B - Flaw detection device for seamless steel pipe and flaw detection method thereof - Google Patents
Flaw detection device for seamless steel pipe and flaw detection method thereof Download PDFInfo
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- CN113484413B CN113484413B CN202110698037.6A CN202110698037A CN113484413B CN 113484413 B CN113484413 B CN 113484413B CN 202110698037 A CN202110698037 A CN 202110698037A CN 113484413 B CN113484413 B CN 113484413B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a flaw detection device for a seamless steel pipe and a flaw detection method thereof, relates to the related field of seamless steel pipes, and aims to solve the problems that in the prior art, when flaw detection is carried out, a flaw detection head needs to be rotated for the comprehensiveness of flaw detection, so that the inside and the outside of the seamless steel pipe are detected comprehensively, but a probe is difficult to rotate when the inside of the seamless steel pipe is detected. Be provided with seamless steel pipe between first support hanger plate and the second support hanger plate, the rotation accommodate motor is installed to the upper end of first support hanger plate inboard, the output shaft end that rotates accommodate motor passes first support hanger plate and is connected with second drive gear, one side in the seamless steel pipe outside is provided with outer adjustment assembly, outer adjustment assembly is including solid fixed ring, gu be provided with annular tooth's socket on the fixed ring, second drive gear and the meshing of annular tooth's socket, the subassembly of detecting a flaw in installing one side of outer adjustment assembly, the outside middle fixedly connected with accommodate screw between second support hanger plate and the first support hanger plate.
Description
Technical Field
The invention relates to the field related to seamless steel pipes, in particular to a flaw detection device for a seamless steel pipe and a flaw detection method thereof.
Background
Flaw detection refers to detection of cracks or defects in metal materials or parts, and is generally performed by using instruments such as magnetic, radiation, ultrasonic waves, and the like.
When flaw detection is carried out, the flaw detection head needs to be rotated for the comprehensiveness of flaw detection, so that flaw detection is carried out on the inside and the outside of the seamless steel pipe comprehensively, but the probe is difficult to rotate when flaw detection is carried out on the inside of the seamless steel pipe; therefore, the market is urgently in need of developing a flaw detection device for a seamless steel pipe and a flaw detection method thereof to help people to solve the existing problems.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a flaw detection apparatus for a seamless steel pipe and a flaw detection method thereof, which solve the problems of the background art described above, in which the flaw detection head needs to be rotated for the completeness of flaw detection during flaw detection, and the entire inside and outside of the seamless steel pipe is detected, but it is difficult to rotate the probe during flaw detection of the inside of the seamless steel pipe.
In order to achieve the purpose, the invention provides the following technical scheme: a flaw detection device for a seamless steel pipe comprises a first supporting hanging plate and a second supporting hanging plate, wherein the number of the second supporting hanging plate is two, the seamless steel pipe is arranged between the first supporting hanging plate and the second supporting hanging plate, a rotation adjusting motor is installed at the upper end of the inner side of the first supporting hanging plate, an output shaft end of the rotation adjusting motor penetrates through the first supporting hanging plate to be connected with a second driving gear, an outer adjusting assembly is arranged at one side of the outer side of the seamless steel pipe and comprises a fixing ring, an annular tooth groove is formed in the fixing ring and meshed with the annular tooth groove, an inner flaw detection assembly is installed at one side of the outer adjusting assembly, an adjusting screw rod is fixedly connected between the second supporting hanging plate and the first supporting hanging plate at the outer side, and limiting rods are installed between the second supporting hanging plate and the first supporting hanging plate along the front end and the rear end of the adjusting screw rod, the outer sides of the limiting rod and the adjusting screw rod are provided with transverse moving blocks, outer ultrasonic probes are mounted on the transverse moving blocks, a first driven gear is arranged between the adjusting screw rod and the second supporting hanging plate, the upper end of the first driven gear is connected with a first driving gear in a meshed mode, and an outer transverse adjusting motor is mounted on the outer side of the first driving gear.
Preferably, one side of the inside of the seamless steel pipe is provided with a second middle fixing column, the middle of the outer side surface of the second middle fixing column is provided with a limiting groove, the outer side of the second middle fixing column is provided with a limiting column on the second supporting hanging plate, the limiting column is in sliding connection with the second supporting hanging plate, and one side of the limiting column is embedded into the limiting groove.
Preferably, a flaw detection robot is installed in the middle of the inside of the second middle fixing column, a horizontal tooth socket is arranged in the middle of the lower end face of the inside of the second middle fixing column, a second inner cavity is arranged in the flaw detection robot, an inner transverse adjusting motor is installed in the second inner cavity, a third driving gear is fixedly connected to an output shaft end of the inner transverse adjusting motor, a second driven gear is connected to the lower end of the third driving gear in a meshed mode, and the second driven gear is meshed with the horizontal tooth socket.
Preferably, the other side in the seamless steel tube is provided with a first middle fixing column, the first middle fixing column is rotatably connected with a second middle fixing column through a bearing, one side of the first middle fixing column, which is far away from the second middle fixing column, is fixedly connected with a side limiting cap, a first inner chamber is arranged in the first middle fixing column, a threaded cavity is arranged in the middle of one side of the first inner chamber, a middle adjusting rod is arranged in the middle of the first inner chamber and the threaded cavity, one end of the middle adjusting rod, which penetrates through the side limiting cap, is fixedly connected with an adjusting hand wheel, the middle adjusting rod comprises a threaded portion and a smooth round portion, the threaded portion is positioned at two sides of the smooth round portion, the threaded portion is in threaded connection with the side limiting cap, the first middle fixing column and the threaded cavity, a middle sleeve is arranged in the first inner chamber along the outer side of the smooth round portion, and the middle sleeve is rotatably connected with the smooth round portion through a bearing, the outside of fixed column in the middle of first is provided with internal fixation arc piece, be provided with the dwang between internal fixation arc piece and the middle sleeve pipe, the dwang all rotates through rotating the piece with internal fixation arc piece and middle sleeve pipe and is connected, and the dwang slides in fixed column outer wall in the middle of first.
Preferably, gu fixed ring is gone up the cross direction and is provided with the threaded rod, threaded rod and solid fixed ring threaded connection, the outer fixed arc piece of the inner fixedly connected with of threaded rod, be provided with pressure spring along the outside of threaded rod between outer fixed arc piece and the solid fixed ring, pressure spring's both ends are fixed with outer fixed arc piece and fixed ring respectively.
Preferably, a driving oil cylinder is installed in the middle of the upper end of the flaw detection robot inside the second middle fixing column, an upper mounting platform is arranged at the upper end of the second middle fixing column, an output rod end of the driving oil cylinder penetrates through the second middle fixing column to be fixedly connected with the upper mounting platform, a monitoring camera is installed at one end of the upper mounting platform, and an inner ultrasonic probe is installed at the other end of the upper mounting platform.
Preferably, the inside outer connecting rod that is provided with along the robot outside of detecting a flaw of fixed column in the middle of the second, fixed casing is installed in the outside of outer connecting rod, and the both ends of outer connecting rod are all fixed through fastening bolt with the installed part on the robot of detecting a flaw and the fixed casing, the internally mounted of fixed casing has spacing gyro wheel, and the laminating of fixed column inner wall in the middle of spacing gyro wheel and the second.
A method of flaw detection comprising the steps of:
the method comprises the following steps: lifting the seamless steel pipe upwards to a position between the first supporting hanging plate and the second supporting hanging plate, and driving the seamless steel pipe to move towards the outward adjusting assembly until one end of the seamless steel pipe is inserted into the side limiting cap;
step two: the seamless steel pipe is inserted along the first intermediate fixing column and the second intermediate fixing column, then the limiting column moves towards the seamless steel pipe along the second supporting hanging plate until the limiting column is inserted into a limiting groove of the second intermediate fixing column, and the second intermediate fixing column is relatively fixed;
step three: rotating the threaded rod to enable the outer fixing arc-shaped piece to move towards the seamless steel pipe until the outer fixing arc-shaped piece fixes the seamless steel pipe;
step four: the adjusting hand wheel is rotated to enable the other end of the middle adjusting rod to rotate towards the threaded cavity, the middle sleeve pipe moves towards the threaded cavity, the rotating piece and the rotating rod rotate, and the inner fixing arc piece expands outwards to be in contact with the inner wall of the seamless steel pipe and fixes the seamless steel pipe;
step five: the rotation adjusting motor drives the second driving gear to rotate, and the outer adjusting assembly drives the seamless steel tube to synchronously rotate;
step six: when the seamless steel pipe rotates, the outer transverse adjusting motor drives the first driving gear to rotate, the first driven gear drives the adjusting screw rod to synchronously rotate, the transverse moving block drives the outer ultrasonic probe to slide along the limiting rod and the adjusting screw rod, and the outer ultrasonic probe performs external flaw detection on the seamless steel pipe;
step seven: and when the seamless steel pipe rotates, the inner transverse adjusting motor drives the third driving gear to rotate, the second driven gear synchronously and reversely rotates, the flaw detection robot moves along the horizontal tooth groove, the inner ultrasonic probe and the monitoring camera synchronously move, and the inner ultrasonic probe and the monitoring camera perform flaw detection and observation inside the seamless steel pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the rotation adjusting motor drives the second driving gear to rotate, the outer adjusting component rotates because the second driving gear is meshed with the annular tooth grooves on the fixing ring, and the seamless steel pipe synchronously rotates because the outer adjusting component and the seamless steel pipe are fixed through the fixing structure. When the seamless steel pipe rotates, the outer ultrasonic probe and the inner flaw detection assembly can detect flaws on the outer side and the inner side of the seamless steel pipe, the ultrasonic probe does not need to be manually held for flaw detection, the trouble that the ultrasonic probe is rotated when the inner flaw detection is carried out is also avoided, and therefore the problem that when the flaw detection is carried out, the flaw detection head needs to be rotated for the comprehensiveness of flaw detection is solved, the flaw detection is carried out on the inner portion and the outer portion of the seamless steel pipe comprehensively, and the probe is difficult to rotate when the flaw detection is carried out on the inner portion of the seamless steel pipe.
2. In the invention, a second intermediate fixing column is arranged in the seamless steel tube and is fixed through the limiting relation of a limiting column and a limiting groove; when the seamless steel pipe rotates, an inner ultrasonic probe and a monitoring camera at the upper end of the flaw detection robot perform flaw detection and observation detection, an inner transverse adjusting motor in the flaw detection robot drives a third driving gear to rotate, the third driving gear is meshed with a second driven gear, the second driven gear is meshed with a horizontal tooth groove, the flaw detection robot moves in a second middle fixed column, the inner ultrasonic probe and the monitoring camera synchronously move, and the inside of the seamless steel pipe is subjected to omnibearing flaw detection observation. When the seamless steel pipe rotates, the outer transverse adjusting motor works to drive the adjusting screw rod to rotate, so that the outer ultrasonic probe is driven to transversely move, and the outside of the seamless steel pipe is subjected to omnibearing flaw detection observation.
3. In the invention, the threaded rod on the outer adjusting component is rotated to enable the outer fixed arc-shaped piece to move towards the direction of the seamless steel pipe, and the pressure spring is kept fixed and stable; the middle adjusting rod is rotated, the other end of the middle adjusting rod rotates towards the threaded cavity to drive the middle sleeve to slide, the middle sleeve drives the rotating piece and the rotating rod to rotate when moving towards the threaded cavity, and the internal fixing arc piece expands outwards until contacting with the inner wall of the seamless steel pipe and fixing the seamless steel pipe. Through the outer fixed arc piece and the inner fixed arc piece, the seamless steel tube is doubly fixed in the outer direction and the inner direction, so that the device is fixed to the seamless steel tube tightly, the seamless steel tube can be driven to rotate synchronously, and comprehensive flaw detection work is completed.
Drawings
FIG. 1 is a front view of a flaw detector for a seamless steel pipe according to the present invention;
FIG. 2 is a schematic structural view of a fixing ring and an annular tooth groove of the flaw detection apparatus for a seamless steel pipe according to the present invention;
FIG. 3 is a side sectional view of an outer adjusting unit of the flaw detector for a seamless steel pipe according to the present invention;
FIG. 4 is a schematic view showing the overall configuration of an internal flaw detection unit of the flaw detection apparatus for a seamless steel pipe according to the present invention;
FIG. 5 is an internal cross-sectional view of a first intermediate fixing post of an internal flaw detection assembly of the flaw detection apparatus for a seamless steel pipe of the present invention;
fig. 6 is an internal cross-sectional view of a second intermediate fixing post of the flaw detector for a seamless steel pipe according to the present invention.
In the figure: 1. a first support hanger plate; 2. a second support hanger plate; 3. an outer lateral adjustment motor; 4. a first drive gear; 5. a first driven gear; 6. a limiting rod; 7. adjusting the screw rod; 8. a transverse moving block; 9. an outer ultrasonic probe; 10. rotating the adjusting motor; 11. seamless steel pipes; 12. a limiting column; 13. a second drive gear; 14. an outer adjustment assembly; 15. an internal inspection assembly; 16. a fixing ring; 17. an annular gullet; 18. a threaded rod; 19. the arc-shaped sheet is fixed outside; 20. a pressure spring; 21. a side limit cap; 22. a first intermediate fixed column; 23. a second intermediate fixed column; 24. a limiting groove; 25. a first lumen; 26. a threaded cavity; 27. a middle adjusting rod; 28. a threaded portion; 29. a light circle portion; 30. adjusting a hand wheel; 31. an intermediate sleeve; 32. a rotating member; 33. rotating the rod; 34. the arc-shaped sheet is fixed inside; 35. a horizontal gullet; 36. a flaw detection robot; 37. a driving oil cylinder; 38. an upper mounting platform; 39. an internal ultrasonic probe; 40. a surveillance camera; 41. a second lumen; 42. an inner lateral adjustment motor; 43. a third drive gear; 44. a second driven gear; 45. an outer connecting rod; 46. a stationary housing; 47. and limiting the idler wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-6, an embodiment of the present invention is shown: a flaw detection device for a seamless steel pipe comprises a first supporting hanging plate 1 and a second supporting hanging plate 2, two second supporting hanging plates 2 are arranged, a seamless steel pipe 11 is arranged between the first supporting hanging plate 1 and the second supporting hanging plate 2, a rotation adjusting motor 10 is installed at the upper end of the inner side of the first supporting hanging plate 1, the output shaft end of the rotation adjusting motor 10 penetrates through the first supporting hanging plate 1 to be connected with a second driving gear 13, an outer adjusting component 14 is arranged on one side of the outer side of the seamless steel pipe 11, the outer adjusting component 14 comprises a fixing ring 16, a threaded rod 18 is arranged on the fixing ring 16 in the cross direction, the threaded rod 18 is in threaded connection with the fixing ring 16, an outer fixing arc piece 19 is fixedly connected to the inner end of the threaded rod 18, the outer fixing arc piece 19 moves towards the direction of the seamless steel pipe 11 by rotating the threaded rod 18, the seamless steel pipe 11 is fixed by the outer fixing arc piece 19, a pressure spring 20 is arranged between the outer fixing arc piece 19 and the fixing ring 16 along the outer side of the threaded rod 18, two ends of a pressure spring 20 are respectively fixed with an outer fixed arc-shaped piece 19 and a fixed ring 16, the fixed ring 16 is provided with an annular tooth socket 17, a second driving gear 13 is meshed with the annular tooth socket 17, one side of an outer adjusting component 14 is provided with an inner flaw detection component 15, the middle between an outer second supporting hanging plate 2 and a first supporting hanging plate 1 is fixedly connected with an adjusting screw 7, a limiting rod 6 is arranged between the second supporting hanging plate 2 and the first supporting hanging plate 1 along the front end and the rear end of the adjusting screw 7, the limiting rod 6 and the outer side of the adjusting screw 7 are provided with a transverse moving block 8, an outer ultrasonic probe 9 is arranged on the transverse moving block 8, a first driven gear 5 is arranged between the adjusting screw 7 and the second supporting hanging plate 2, the upper end of the first driven gear 5 is meshed and connected with a first driving gear 4, an outer transverse adjusting motor 3 is arranged on the outer side of the first driving gear 4, the outer transverse adjusting motor 3 drives the first driving gear 4 to rotate, the first driven gear 5 drives the adjusting screw 7 to synchronously rotate, the transverse moving block 8 drives the outer ultrasonic probe 9 to slide along the limiting rod 6 and the adjusting screw 7, and the outer ultrasonic probe 9 carries out external flaw detection on the seamless steel pipe 11.
Further, a second middle fixing column 23 is arranged on one side inside the seamless steel tube 11, a limiting groove 24 is arranged in the middle of the outer side surface of the second middle fixing column 23, a limiting column 12 is arranged on the outer side second supporting hanging plate 2, the limiting column 12 is connected with the second supporting hanging plate 2 in a sliding mode, one side of the limiting column 12 is embedded into the limiting groove 24, a first middle fixing column 22 is arranged on the other side inside the seamless steel tube 11, the first middle fixing column 22 is rotatably connected with the second middle fixing column 23 through a bearing, a side limiting cap 21 is fixedly connected to one side, far away from the second middle fixing column 23, of the first middle fixing column 22, the seamless steel tube 11 is lifted upwards between the first supporting hanging plate 1 and the second supporting hanging plate 2, the seamless steel tube 11 is driven to move towards the outward adjusting assembly 14 until one end of the seamless steel tube is inserted into the side limiting cap 21, the inner side surface of the side limiting cap 21 is attached to the end surface of the seamless steel tube 11, a first inner cavity 25 is arranged in the first middle fixing column 22, a threaded cavity 26 is arranged in the middle of one side of the first inner cavity 25, a middle adjusting rod 27 is arranged in the middle of the first inner cavity 25 and the threaded cavity 26, one end of the middle adjusting rod 27 penetrating through the side limiting cap 21 is fixedly connected with an adjusting hand wheel 30, the middle adjusting rod 27 comprises a threaded part 28 and a smooth circular part 29, the threaded part 28 is positioned at two sides of the smooth circular part 29, the threaded part 28 is in threaded connection with the side limiting cap 21, the first middle fixing column 22 and the threaded cavity 26 are all in threaded connection, a middle sleeve 31 is arranged in the first inner cavity 25 along the outer side of the smooth circular part 29, the middle sleeve 31 is in rotational connection with the smooth circular part 29 through a bearing, an inner fixing arc piece 34 is arranged at the outer side of the first middle fixing column 22, a rotating rod 33 is arranged between the inner fixing arc piece 34 and the middle sleeve 31, the rotating rod 33 is in rotational connection with the inner fixing arc piece 34 and the middle sleeve 31 through a rotating piece 32, the adjusting hand wheel 30 is rotated, the other end of the middle adjusting rod 27 rotates towards the threaded cavity 26, the middle sleeve 31 moves towards the threaded cavity 26, the rotating piece 32 and the rotating rod 33 rotate, the inner fixing arc piece 34 expands outwards to be in contact with the inner wall of the seamless steel tube 11 and fix the seamless steel tube 11, and the rotating rod 33 slides in the outer wall of the first middle fixing column 22.
Further, a flaw detection robot 36 is installed in the middle of the inside of the second middle fixing column 23, a driving oil cylinder 37 is installed in the inside of the second middle fixing column 23 along the middle of the upper end of the flaw detection robot 36, an upper mounting platform 38 is arranged at the upper end of the second middle fixing column 23, the output rod end of the driving oil cylinder 37 passes through the second middle fixing column 23 and is fixedly connected with the upper mounting platform 38, a monitoring camera 40 is installed at one end of the upper mounting platform 38, an inner ultrasonic probe 39 is installed at the other end of the upper mounting platform 38, the inner ultrasonic probe 39 and the monitoring camera 40 carry out flaw detection and observation inside the seamless steel pipe 11, a horizontal tooth socket 35 is arranged in the middle of the lower end face of the inside of the second middle fixing column 23, a second inner cavity 41 is arranged inside the flaw detection robot 36, an inner transverse adjustment motor 42 is installed inside the second inner cavity 41, a third driving gear 43 is fixedly connected to the output shaft of the inner transverse adjustment motor 42, the lower end of the third driving gear 43 is engaged with a second driven gear 44, the second driven gear 44 is engaged with the horizontal tooth slot 35, the inner transverse adjusting motor 42 drives the third driving gear 43 to rotate, the second driven gear 44 synchronously and reversely rotates, the flaw detection robot 36 moves along the horizontal tooth slot 35, an outer connecting rod 45 is arranged inside the second middle fixing column 23 along the outer side of the flaw detection robot 36, a fixed shell 46 is arranged outside the outer connecting rod 45, two ends of the outer connecting rod 45 are fixed with the flaw detection robot 36 and the mounting pieces on the fixed shell 46 through fastening bolts, a limiting roller 47 is arranged inside the fixed shell 46, the length of the outer connecting rod 45 can be adjusted, so that the extending length of the limiting roller 47 is changed, thereby better fitting the inner wall of the second middle fixing column 23, the inner transverse adjusting motor 42 drives the third driving gear 43 to rotate, and the second driven gear 44 synchronously and reversely rotates, the flaw detection robot 36 moves along the horizontal tooth slot 35, and the limiting roller 47 horizontally slides inside the second middle fixing column 23.
Example 2
The embodiment provided by the invention comprises the following steps: a method of flaw detection comprising the steps of:
lifting the seamless steel tube 11 upwards between the first supporting lifting plate 1 and the second supporting lifting plate 2, driving the seamless steel tube 11 to move towards the outward adjusting component 14 until one end of the seamless steel tube is inserted into the side limiting cap 21, inserting the seamless steel tube 11 along the first middle fixing column 22 and the second middle fixing column 23, then moving the limiting column 12 along the second supporting lifting plate 2 towards the seamless steel tube 11 until the limiting column 12 is inserted into the limiting groove 24 of the second middle fixing column 23, and relatively fixing the second middle fixing column 23;
the threaded rod 18 is rotated to enable the outer fixed arc-shaped piece 19 to move towards the seamless steel tube 11 until the outer fixed arc-shaped piece 19 fixes the seamless steel tube 11, the adjusting hand wheel 30 is rotated to enable the other end of the middle adjusting rod 27 to rotate towards the threaded cavity 26, the middle sleeve 31 moves towards the threaded cavity 26, the rotating piece 32 and the rotating rod 33 rotate, and the inner fixed arc-shaped piece 34 expands outwards to be in contact with the inner wall of the seamless steel tube 11 and fix the seamless steel tube 11;
the rotation adjusting motor 10 drives the second driving gear 13 to rotate, and the outer adjusting component 14 drives the seamless steel tube 11 to synchronously rotate; the outer transverse adjusting motor 3 drives the first driving gear 4 to rotate, the first driven gear 5 drives the adjusting screw rod 7 to synchronously rotate, the transverse moving block 8 drives the outer ultrasonic probe 9 to slide along the limiting rod 6 and the adjusting screw rod 7, and the outer ultrasonic probe 9 carries out external flaw detection on the seamless steel pipe 11.
Example 3
The embodiment provided by the invention comprises the following steps: a method of flaw detection comprising the steps of:
lifting the seamless steel tube 11 upwards between the first supporting lifting plate 1 and the second supporting lifting plate 2, driving the seamless steel tube 11 to move towards the outward adjusting component 14 until one end of the seamless steel tube is inserted into the side limiting cap 21, inserting the seamless steel tube 11 along the first middle fixing column 22 and the second middle fixing column 23, then moving the limiting column 12 along the second supporting lifting plate 2 towards the seamless steel tube 11 until the limiting column 12 is inserted into the limiting groove 24 of the second middle fixing column 23, and relatively fixing the second middle fixing column 23;
the threaded rod 18 is rotated to enable the outer fixed arc-shaped piece 19 to move towards the seamless steel tube 11 until the outer fixed arc-shaped piece 19 fixes the seamless steel tube 11, the adjusting hand wheel 30 is rotated to enable the other end of the middle adjusting rod 27 to rotate towards the threaded cavity 26, the middle sleeve 31 moves towards the threaded cavity 26, the rotating piece 32 and the rotating rod 33 rotate, and the inner fixed arc-shaped piece 34 expands outwards to be in contact with the inner wall of the seamless steel tube 11 and fix the seamless steel tube 11;
the rotation adjusting motor 10 drives the second driving gear 13 to rotate, and the outer adjusting component 14 drives the seamless steel tube 11 to synchronously rotate; the inner transverse adjusting motor 42 drives the third driving gear 43 to rotate, the second driven gear 44 synchronously rotates in the reverse direction, the flaw detection robot 36 moves along the horizontal tooth grooves 35, the inner ultrasonic probe 39 and the monitoring camera 40 synchronously move, and the inner ultrasonic probe 39 and the monitoring camera 40 carry out flaw detection and observation on the inside of the seamless steel pipe 11.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. The utility model provides a seamless steel pipe is with device of detecting a flaw, includes first support hanger plate (1) and second support hanger plate (2), its characterized in that: the second supporting hanger plate (2) is provided with two, a seamless steel pipe (11) is arranged between the first supporting hanger plate (1) and the second supporting hanger plate (2), a rotation adjusting motor (10) is installed at the upper end of the inner side of the first supporting hanger plate (1), an output shaft end of the rotation adjusting motor (10) penetrates through the first supporting hanger plate (1) to be connected with a second driving gear (13), an outer adjusting component (14) is arranged at one side of the outer portion of the seamless steel pipe (11), the outer adjusting component (14) comprises a fixing ring (16), an annular tooth groove (17) is formed in the fixing ring (16), the second driving gear (13) is meshed with the annular tooth groove (17), an inner flaw detection component (15) is installed at one side of the outer adjusting component (14), and an adjusting screw rod (7) is fixedly connected between the second supporting hanger plate (2) and the first supporting hanger plate (1) at the outer side, limiting rods (6) are arranged between the second supporting hanging plate (2) and the first supporting hanging plate (1) along the front end and the rear end of the adjusting screw rod (7), transverse moving blocks (8) are arranged on the outer sides of the limiting rods (6) and the adjusting screw rod (7), an outer ultrasonic probe (9) is arranged on each transverse moving block (8), a first driven gear (5) is arranged between the adjusting screw rod (7) and the second supporting hanging plate (2), the upper end of each first driven gear (5) is connected with a first driving gear (4) in a meshed mode, and an outer transverse adjusting motor (3) is arranged on the outer side of each first driving gear (4); a second middle fixing column (23) is arranged on one side inside the seamless steel tube (11), a limiting groove (24) is formed in the middle of the outer side surface of the second middle fixing column (23), a limiting column (12) is arranged on the second supporting hanging plate (2) on the outer side, the limiting column (12) is connected with the second supporting hanging plate (2) in a sliding mode, and one side of the limiting column (12) is embedded into the limiting groove (24); a flaw detection robot (36) is mounted in the middle of the inside of the second middle fixing column (23), a horizontal tooth slot (35) is formed in the middle of the lower end face of the inside of the second middle fixing column (23), a second inner cavity (41) is formed in the flaw detection robot (36), an inner transverse adjusting motor (42) is mounted in the second inner cavity (41), a third driving gear (43) is fixedly connected to an output shaft of the inner transverse adjusting motor (42), a second driven gear (44) is connected to the lower end of the third driving gear (43) in a meshed mode, and the second driven gear (44) is meshed with the horizontal tooth slot (35); the seamless steel tube is characterized in that a first middle fixing column (22) is arranged on the other side inside the seamless steel tube (11), the first middle fixing column (22) is rotatably connected with a second middle fixing column (23) through a bearing, one side, far away from the second middle fixing column (23), of the first middle fixing column (22) is fixedly connected with a side limiting cap (21), a first inner cavity (25) is arranged inside the first middle fixing column (22), a threaded cavity (26) is arranged in the middle of one side of the first inner cavity (25), a middle adjusting rod (27) is arranged in the middle of the first inner cavity (25) and the threaded cavity (26), an adjusting hand wheel (30) is fixedly connected to one end, penetrating through the side limiting cap (21), of the middle adjusting rod (27), the middle adjusting rod comprises a threaded portion (28) and a light circular portion (29), and the threaded portion (28) is located on two sides of the light circular portion (29), screw thread portion (28) and side position limiting cap (21), first middle fixed column (22) and screw thread chamber (26) all pass through threaded connection, the outside of light circle portion (29) is provided with middle sleeve pipe (31) inside first inner chamber (25), middle sleeve pipe (31) and light circle portion (29) are passed through the bearing and are rotated and be connected, the outside of first middle fixed column (22) is provided with internal fixation arc piece (34), be provided with dwang (33) between internal fixation arc piece (34) and middle sleeve pipe (31), dwang (33) and internal fixation arc piece (34) and middle sleeve pipe (31) all rotate through rotation piece (32) and are connected, dwang (33) slide in first middle fixed column (22) outer wall, gu fixed ring (16) go up the cross direction and be provided with threaded rod (18), threaded rod (18) and fixed ring (16) threaded connection, the inner end of the threaded rod (18) is fixedly connected with an outer fixing arc-shaped sheet (19), a pressure spring (20) is arranged between the outer fixing arc-shaped sheet (19) and the fixing ring (16) along the outer side of the threaded rod (18), two ends of the pressure spring (20) are respectively fixed with the outer fixing arc-shaped sheet (19) and the fixing ring (16), a driving oil cylinder (37) is installed inside the second middle fixing column (23) along the middle of the upper end of the flaw detection robot (36), the upper end of the second middle fixing column (23) is provided with an upper mounting platform (38), the output rod end of the driving oil cylinder (37) penetrates through the second middle fixing column (23) to be fixedly connected with the upper mounting platform (38), one end of the upper surface of the upper mounting platform (38) is provided with a monitoring camera (40), and the other end of the upper surface of the upper mounting platform (38) is provided with an inner ultrasonic probe (39), fixed column (23) are inside to be provided with outer connecting rod (45) along the inspection robot (36) outside in the middle of the second, fixed casing (46) are installed in the outside of outer connecting rod (45), and the both ends of outer connecting rod (45) are all fixed through fastening bolt with the installed part on inspection robot (36) and fixed casing (46), the internally mounted of fixed casing (46) has spacing gyro wheel (47), and fixed column (23) inner wall laminating in the middle of spacing gyro wheel (47) and the second.
2. A flaw detection method implemented by the flaw detection apparatus for a seamless steel pipe according to claim 1, comprising:
the method comprises the following steps: the seamless steel pipe (11) is hoisted upwards to a position between the first supporting hanger plate (1) and the second supporting hanger plate (2), and the seamless steel pipe (11) is driven to move towards the direction of the outward adjusting assembly (14) until one end of the seamless steel pipe is inserted into the side limiting cap (21);
step two: the seamless steel tube (11) is inserted along the first middle fixing column (22) and the second middle fixing column (23), then the limiting column (12) moves towards the seamless steel tube (11) along the second supporting hanger plate (2) until the limiting column (12) is inserted into a limiting groove (24) of the second middle fixing column (23), and the second middle fixing column (23) is relatively fixed;
step three: rotating the threaded rod (18) to enable the outer fixed arc-shaped piece (19) to move towards the seamless steel pipe (11) until the outer fixed arc-shaped piece (19) fixes the seamless steel pipe (11);
step four: the adjusting hand wheel (30) is rotated to enable the other end of the middle adjusting rod (27) to rotate towards the threaded cavity (26), the middle sleeve (31) moves towards the threaded cavity (26), the rotating piece (32) and the rotating rod (33) rotate, and the inner fixed arc-shaped piece (34) expands outwards to be in contact with the inner wall of the seamless steel pipe (11) and is fixed on the seamless steel pipe (11);
step five: the rotation adjusting motor (10) drives the second driving gear (13) to rotate, and the outer adjusting component (14) drives the seamless steel pipe (11) to synchronously rotate;
step six: when the seamless steel pipe (11) rotates, the outer transverse adjusting motor (3) drives the first driving gear (4) to rotate, the first driven gear (5) drives the adjusting screw rod (7) to synchronously rotate, the transverse moving block (8) drives the outer ultrasonic probe (9) to slide along the limiting rod (6) and the adjusting screw rod (7), and the outer ultrasonic probe (9) performs external flaw detection on the seamless steel pipe (11);
step seven: when the seamless steel pipe (11) rotates, the inner transverse adjusting motor (42) drives the third driving gear (43) to rotate, the second driven gear (44) synchronously rotates in the reverse direction, the flaw detection robot (36) moves along the horizontal tooth groove (35), the inner ultrasonic probe (39) and the monitoring camera (40) synchronously move, and the inner ultrasonic probe (39) and the monitoring camera (40) carry out internal flaw detection and observation on the seamless steel pipe (11).
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| CN117074640B (en) * | 2023-10-17 | 2023-12-15 | 山东帝盟重工机械有限公司 | Gearbox gear shaft flaw detection mechanism |
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