CN104730094B - A kind of Radiographic Inspection of The Welds In Pipelines device - Google Patents
A kind of Radiographic Inspection of The Welds In Pipelines device Download PDFInfo
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- CN104730094B CN104730094B CN201510160286.4A CN201510160286A CN104730094B CN 104730094 B CN104730094 B CN 104730094B CN 201510160286 A CN201510160286 A CN 201510160286A CN 104730094 B CN104730094 B CN 104730094B
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Abstract
A kind of its installing base frame of Radiographic Inspection of The Welds In Pipelines device is integrated with knuckle joint by thread connection, based on carrier.Flexible cylinder one end is coupled by bolt with installing base frame, the other end is coupled by bolt with outer ring retaining mechanism, and in the presence of flexible cylinder, outer ring retaining mechanism is rotated around conduit axis.Inner ring bindiny mechanism is coupled by friction pulley and its hold-down gear with outer ring retaining mechanism, and circular motion track is fixed on outer ring retaining mechanism by screw.Decelerating through motor device assembly is coupled by screw with inner ring bindiny mechanism.X ray generator, flat panel detector couple also by screw with inner ring bindiny mechanism, together with inner ring bindiny mechanism around conduit axis in circular motion moving on rails.Camera is coupled by screw with installing base frame, is easy to Real Time Observation mechanism working condition and pre-determined bit.Infrared ray positioning detector is coupled by screw with installing base frame.Operating efficiency can be improved, improves labour intensity, it is cost-effective, with favorable compatibility and environmental suitability.
Description
Technical field
The present invention relates to a kind of failure detector, more particularly to a kind of Radiographic Inspection of The Welds In Pipelines device.
Background technology
For pipe welding seam welding, usually equipment is external, i.e., carry out weld job positioned at pipeline outside.
For pipeline weld seam flaw detection, source is generally divided into Nei Heyuan two kinds of situations outside.
It is that x-ray source is located inside pipeline for source for interior, realizes the motion of x-ray source and determine by crawl device
Position.
For source outside for, be that x-ray source is located at pipeline external, realized together with detector the motion of x-ray source with
Positioning.
No matter where x-ray source is located at pipeline, for imaging system, is required to realize 360 ° of detector
Circular motion, to detect the welding quality of full weld seam.
The circular motion form of detector typically has following mechanism：
C-type Chain conveyer frame, i.e., using C-arm connection x-ray source and the detector of retractable locking so that radiographic source and spy
The both sides that device is located at pipeline are surveyed, whole c-type rack device drives roller to be moved in a circle around pipeline axial line by being electrolysed decelerator,
So as to realize the flaw detection to weld seam.Which c-type support body product is big, weight is big, and scene dismounting needs substantial amounts of hand labor.Device
During detection, roller motion stability is poor, motion positions precision is low, it is impossible to meet along the deviation requirement of seam inspection, and it is rolled
Wheel has potential nocuity to pipeline in pipeline outer wall motion, therefore can not completely possess the technical requirements of field operation, the party
Formula has been eliminated substantially at present.
Gear ring type, i.e., using two and half annular gears and its supporting mechanism of separable locking, X is connected by intermediate connector
Radiographic source and detector so that radiographic source is located at the both sides of pipeline with detector, drive detection part to exist by motor reducer
Moved on the all-round gear ring of two and half annular gears composition, realize the circumference detection to weld seam.Which accurate positioning, motion are steady
It is fixed, the Motion Technology requirement of x-ray imaging can be met, but complex structure, scene dismounting transhipment workload are big, labour intensity
Greatly, efficiency is extremely restricted, poor for harsh environmental suitability.
Existing pipe welding seam scanning equipment volume is huge, complex structure, environment are adapted to not by force, while needs are substantial amounts of artificial
Less important work, efficiency especially in the area of bad environments, are even more difficult to operate, while also increasing inspection nor too high
Survey cost.
The content of the invention
It is an object of the invention to provide a kind of Radiographic Inspection of The Welds In Pipelines device, it is possible to increase the environment of pipeline weld seam flaw detection
Adaptability, raising operating efficiency, improvement labour intensity, save cost of labor.
The present invention realizes that the technical scheme of above-mentioned purpose is：
Including installing base frame, knuckle joint, flexible cylinder, stationary half, motion inner ring, circular motion track, motor
Reducer assemblies, X generators, flat panel detector, infrared ray positioning detector, camera, be locked to bit detector, inner ring connection
Mechanism, outer ring retaining mechanism, gyroaxis, friction pulley, hold-down gear.
Installing base frame is integrated with knuckle joint by thread connection, based on carrier.Flexible cylinder one end passes through
Bolt couples with installing base frame, the other end is coupled by bolt with outer ring retaining mechanism, in the presence of flexible cylinder, outer ring
Retaining mechanism is rotated around conduit axis, realizes the open and close movement of outer ring retaining mechanism.Inner ring bindiny mechanism by friction pulley and its
Hold-down gear couples with outer ring retaining mechanism, and circular motion track is fixed on outer ring retaining mechanism by screw, and so, inner ring connects
Connection mechanism just can be under the drive of decelerating through motor device assembly in circular motion moving on rails, the circumference fortune needed for realizing flaw detection
It is dynamic.Decelerating through motor device assembly is coupled by screw with inner ring bindiny mechanism.X ray generator, flat panel detector are also by screw
Bindiny mechanism couples with inner ring, together with inner ring bindiny mechanism around conduit axis in circular motion moving on rails, realize around pipe
The circular motion of road axis.Camera is coupled by screw with installing base frame, is easy to Real Time Observation mechanism working condition and is made a reservation for
Position.Infrared ray positioning detector is coupled by screw with installing base frame.
By such scheme, described installing base frame is molded using monoblock cast or metal machining, and its corner leads to respectively
The flexible cylinder hinge seat of bolt-connection four is crossed, along conduit axis direction, outer ring retaining mechanism turning joint is fixed in both sides,
Electric hydraulic crossover sub is fixed in installing base frame.Perpendicular to conduit axis, consolidated by screw respectively in the both sides of pedestal
Determine infrared ray positioning detector and camera.
By such scheme, described knuckle joint is the conical cavity shape with certain angle, on mechanical arm nose cone taper with
It is identical such that it is able to be inserted among knuckle joint, outer ring retaining mechanism clamps flange.
By such scheme, described stationary half is made up of four duplicate semicircular rings, the diameter of annulus with it is tested
Survey pipe diameter identical, cut with scissors by cylinder and be connected with installing base frame and flexible cylinder.Circular groove type guide rail is which is provided with, is easy to interior
Circle bindiny mechanism is nested wherein.
By such scheme, described motion inner ring is that x ray generator, flat panel detector, circular motion track, motor subtract
The carrier of fast device assembly.It is made up of two pieces of arcs, is linked together by bearing pin.Motion inner annular edge is embedded in outer ring lock
Among tight mechanism circular arc gathering sill, synchronous opening and closing are realized together with the retaining mechanism of outer ring.Outer ring retaining mechanism and inner ring connection machine
Structure is concentric structure.
By such scheme, described decelerating through motor device assembly includes motor, decelerator, friction pulley, hold-down mechanism.Motor joins
Decelerator input end flanges are connected to, by screw attachment in one end of motion inner ring, reducer output shaft end is by flat for decelerator
Key is fixedly connected with friction pulley, and above the circular motion track of outer ring retaining mechanism, its reverse side passes through hold-down gear to friction pulley
Can realize that friction pulley is effectively contacted with circular motion track, and regulating friction force size.
Beneficial effects of the present invention：As a result of said structure, the present invention can improve operating efficiency, improve work strong
Degree, it is cost-effective, with favorable compatibility and environmental suitability.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is structure schematic front view of the invention.
Fig. 3 is structure schematic top plan view of the invention.
Fig. 4 is structure schematic side view of the invention.
Stepwise schematic views when Fig. 5 is seam inspection of the present invention.
View when Fig. 6 is present invention closure.
Fig. 7 is the view when present invention opens.
In figure：1. installing base frame, 2. knuckle joint, 3. stretch cylinder, 4. stationary half, 5. moves inner ring, 6. circumference
Tracks, 7. decelerating through motor device assembly, 8.X ray generators, 9. flat panel detector, 10. infrared ray positioning detector, 11.
It is locked to bit detector, 12. cameras, 13. pipelines
Specific embodiment
As shown in figure 1, including installing base frame 1, knuckle joint 2, flexible cylinder 3, stationary half 4 moves inner ring 5, circle
All tracks 6, decelerating through motor device assembly 7, x ray generator 8, flat panel detector 9, infrared ray positioning detector 10, locking
To bit detector 11, camera 12, inner ring bindiny mechanism, outer ring retaining mechanism, gyroaxis, friction pulley, hold-down gear.
Installing base frame 1 is integrated with knuckle joint 2 by thread connection, used as the carrier is carrier of device.Flexible cylinder 3
Cylinder body is coupled by bolt with installing base frame 1, the flexible cylinder rod of cylinder 3 is coupled by bolt with outer ring retaining mechanism, flexible
In the presence of cylinder 3, outer ring retaining mechanism wraparound axis of rotation realizes the open and close movement of outer ring retaining mechanism.Inner ring is connected
Mechanism is coupled by friction pulley and its hold-down gear with outer ring retaining mechanism, and circular motion track 6 is fixed on outer ring by screw
Retaining mechanism, so, inner ring bindiny mechanism can just transport under the drive of decelerating through motor device assembly 7 on circular motion track 6
It is dynamic, the circular motion needed for realizing welding or flaw detection.Decelerating through motor device assembly is coupled by screw with inner ring bindiny mechanism.Together
When, x ray generator 8, flat panel detector 9 couple also by screw with inner ring bindiny mechanism, together with inner ring bindiny mechanism around
The axis of pipeline 13 realizes the circular motion around the axis of pipeline 13 in circular motion moving on rails.Camera 12 by screw with
Installing base frame 1 couples, and is easy to Real Time Observation mechanism working condition and pre-determined bit.Infrared ray positioning detector 10 is by screw and peace
Dress pedestal 1 couples, and is easy to provide visualization guiding when mechanism positions tracking, improves operating efficiency, ensures positioning precision.
Installing base frame 1 is molded using monoblock cast or metal machining, and knuckle joint 2, telescoping cylinder company is disposed with thereon
Connect free bearing, outer ring retaining mechanism rotating hinge, electric hydraulic crossover sub, infrared ray positioning detector 10, camera 12 etc..To pacify
Based on dress pedestal 1, its upper center is integrated with knuckle joint 2 by thread connection.Its corner is connected by bolts respectively
Four flexible cylinder hinge seats, along the axis direction of pipeline 13, outer ring retaining mechanism turning joint, electric hydraulic are fixed in both sides
Crossover sub is fixed on installing base frame 1.Perpendicular to the axis of pipeline 13, fixed by screw respectively in the both sides of installing base frame 1
By infrared ray positioning detector 10 and camera 12.
Knuckle joint 2 is the conical cavity form with certain angle, and nose cone taper is same on mechanical arm such that it is able to
It is adaptively inserted among the joint, outer ring retaining mechanism clamps flange.Can conveniently and efficiently realize mechanical arm with detection
The cargo handling process of device, flexibility and reliability.Infrared ray positioning detector 10 can detection means whether reach reasonable near weld seam
Test position, if reaching, passes information to operating room back, is ready pinching action.By camera 12, operating personnel
The image on weld seam periphery intuitively can be clearly observed, is easy to positioning action of device etc..
Stationary half 4 is made up of four duplicate semicircular rings, and the diameter of annulus is identical with the diameter of detected pipeline 13,
Cut with scissors by cylinder and be connected with installing base frame 1 and flexible cylinder 3.Circular groove type guide rail is which is provided with, is easy to inner ring bindiny mechanism embedding
Set is wherein.The mechanism is manufactured using cast iron, the coefficient of friction between increase and friction pulley.Realize opening by flexible cylinder 3
Open and pinching action.Infrared ray positioning detector 10 is detected after clamping in place, and the flexible stop motion of cylinder 3 is simultaneously locked.
Motion inner ring 5 is x ray generator 8, flat panel detector 9, the carrier of decelerating through motor device assembly 7.It is by two pieces of arcs
Shape plate is constituted, and is linked together by bearing pin.Motion inner ring 5 edge is embedded among the retaining mechanism circular arc gathering sill of outer ring, with
Outer ring retaining mechanism realizes synchronous opening and closing together.Outer ring retaining mechanism and inner ring bindiny mechanism are concentric structures, in outer ring locking
Mechanism is when benchmark is held tightly centered on pipeline 13, interior loop mechanism it is synchronous also with the origin reference location.Realization is once clamped, Liang Zhetong
Shi Dingwei, the spinning movement that just can be directly detected.Under the drive of decelerating through motor device assembly 7, circumference can be done around pipeline 13
Motion.
Decelerating through motor device assembly 7 includes motor, decelerator, friction pulley, hold-down gear.Motor direct connection and decelerator input
Flange, by screw attachment in one end of motion inner ring 5, connection is fixed in reducer output shaft end to decelerator by flat key with friction pulley
Connect, friction pulley in the top of circular motion track 6 of outer ring retaining mechanism, its reverse side by hold-down gear can realize friction pulley and
Circular motion track 6 is effectively contacted.The size of thrust can be adjusted by hold-down gear, so as to ensure enough frictional force.
The mechanism is fixed in inner ring bindiny mechanism, and friction pulley is moved on the retaining mechanism of outer ring.
The course of work of the invention：
Device is transported to operating area by job platform first.When device is located at initial position, the He of stationary half 4
The hinge for moving inner ring 5 is on same axis.Stationary half is driven to realize motion of opening a business in the presence of flexible cylinder 3,
After subtended angle is more than caliber, job platform mechanical arm declines, and device is placed in into weld seam region, is oriented to by infrared ray
With video guiding, device is accurately positioned at job area, then device drives stationary half in the presence of flexible cylinder 3
Closure is realized, so that stationary half fixed position on pipeline.
During operation, the motion release alignment pin of inner ring 5 in the presence of decelerating through motor device assembly 7, drives friction pulley in fixation
Moved on semi-ring 4, extremely at next predetermined angle positioning, move the stop motion of inner ring 5, alignment pin is accurately positioned, and triggers X-ray
Generator 8 starts, shooting image.So circulation, until all-round shooting is finished.
Then motor reversal, drives friction pulley counter motion, until returning to initial position, discharges alignment pin, fixed motion
Inner ring 5, completes a duty cycle.Device drives stationary half 4 to realize motion of opening a business in the presence of flexible cylinder 3,
More than after caliber, device is departed from pipeline 13 to subtended angle by the lifting of job platform mechanical arm, is then transported under transferring platform motion
To next station.
Claims (6)
1. a kind of Radiographic Inspection of The Welds In Pipelines device, it is characterised in that：Including installing base frame (1), knuckle joint (2) stretches and makees
Dynamic cylinder (3), stationary half (4), motion inner ring (5), circular motion track (6), decelerating through motor device assembly (7), x ray generator
(8), flat panel detector (9), infrared ray positioning detector (10) is locked to bit detector (11), camera (12), inner ring connection
Mechanism, outer ring retaining mechanism, gyroaxis, friction pulley, hold-down gear；Installing base frame (1) is with knuckle joint (2) by thread connection
Be integrated, based on carrier；Flexible cylinder (3) one end is coupled by bolt with installing base frame (1), the other end passes through bolt
Couple with outer ring retaining mechanism, in the presence of flexible cylinder (3), outer ring retaining mechanism is rotated around pipeline (13) axis, real
The open and close movement of existing outer ring retaining mechanism；Inner ring bindiny mechanism is joined by friction pulley and its hold-down gear with outer ring retaining mechanism
Connect, circular motion track (6) is fixed on outer ring retaining mechanism by screw, so, inner ring bindiny mechanism can just subtract in motor
Moved on circular motion track (6) under the drive of fast device assembly (7), the circular motion needed for realizing flaw detection；Motor reducer
Component (7) is coupled by screw with inner ring bindiny mechanism；X ray generator (8), flat panel detector (9) also by screw with it is interior
Circle bindiny mechanism connection, move on circular motion track (6) around pipeline (13) axis with inner ring bindiny mechanism together, realization around
The circular motion of pipeline (13) axis；Camera (12) is coupled by screw with installing base frame (1), is easy to Real Time Observation mechanism work
Make state and pre-determined bit；Infrared ray positioning detector (10) is coupled by screw with installing base frame (1).
2. Radiographic Inspection of The Welds In Pipelines device according to claim 1, it is characterised in that：Described installing base frame (1) is adopted
It is molded with monoblock cast or metal machining, its corner is connected by bolts four flexible cylinder hinge seats respectively, along pipe
Road (13) axis direction, outer ring retaining mechanism turning joint is fixed in both sides, and electric hydraulic crossover sub is fixed on installing base frame
(1) on；Perpendicular to pipeline (13) axis, infrared ray detection and localization is fixed by screw respectively in the both sides of installing base frame (1)
Device (10) and camera (12).
3. Radiographic Inspection of The Welds In Pipelines device according to claim 1 and 2, it is characterised in that：Described knuckle joint (2)
Be the conical cavity shape with certain angle, nose cone taper is same on mechanical arm such that it is able to be inserted into knuckle joint (2) it
In, outer ring retaining mechanism clamps flange.
4. Radiographic Inspection of The Welds In Pipelines device according to claim 3, it is characterised in that：Described stationary half (4) by
Four duplicate semicircular ring compositions, the diameter of annulus is identical with detected pipeline (13) diameter, is cut with scissors and is installed by cylinder
Pedestal (1) and flexible cylinder are connected；Circular groove type guide rail is which is provided with, is easy to inner ring bindiny mechanism nested wherein.
5. Radiographic Inspection of The Welds In Pipelines device according to claim 4, it is characterised in that：Described motion inner ring (5) is X
Ray generator (8), flat panel detector (9), circular motion track (6), the carrier of decelerating through motor device assembly (7)；It is by two pieces
Arc is constituted, and is linked together by bearing pin；Motion inner ring (5) edge be embedded in outer ring retaining mechanism circular arc gathering sill it
In, synchronous opening and closing are realized together with the retaining mechanism of outer ring；Outer ring retaining mechanism and inner ring bindiny mechanism are concentric structures.
6. Radiographic Inspection of The Welds In Pipelines device according to claim 5, it is characterised in that：Described decelerating through motor device assembly
(7) including motor, decelerator, friction pulley, hold-down mechanism；Motor is connected in decelerator input end flanges, and decelerator passes through screw
It is connected in one end of motion inner ring (5), reducer output shaft end is fixedly connected by flat key with friction pulley, friction pulley is locked in outer ring
Circular motion track (6) top of tight mechanism, its reverse side can realize friction pulley and circular motion track (6) by hold-down gear
The size of effectively contact, and regulating friction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160286.4A CN104730094B (en) | 2015-04-07 | 2015-04-07 | A kind of Radiographic Inspection of The Welds In Pipelines device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160286.4A CN104730094B (en) | 2015-04-07 | 2015-04-07 | A kind of Radiographic Inspection of The Welds In Pipelines device |
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| Publication Number | Publication Date |
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| CN104730094A CN104730094A (en) | 2015-06-24 |
| CN104730094B true CN104730094B (en) | 2017-06-13 |
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| CN201510160286.4A Active CN104730094B (en) | 2015-04-07 | 2015-04-07 | A kind of Radiographic Inspection of The Welds In Pipelines device |
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| CN105372253A (en) * | 2015-12-14 | 2016-03-02 | 陈艳 | Light tube defect detection system |
| CN108622827A (en) * | 2018-07-12 | 2018-10-09 | 济南开纯机械有限公司 | A kind of portable pipe weld seam x-ray detection operation Special lifting platform |
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| CN111521751B (en) * | 2020-04-16 | 2024-04-30 | 北京新联铁集团股份有限公司 | Wheel tread flaw detection device, flaw detection positioning structure and positioning method thereof |
| CN112338931B (en) * | 2020-10-29 | 2022-01-11 | 南通理工学院 | Underwater pipeline detection robot for shallow water area |
| CN112254014B (en) * | 2020-10-29 | 2022-05-20 | 南通理工学院 | Underwater pipeline detection robot with cleaning function |
| CN113305037B (en) * | 2021-06-01 | 2022-10-11 | 济南大学 | Method for improving radial positioning precision of rim weld seam through turntable deceleration |
| CN113833455B (en) * | 2021-11-30 | 2022-03-15 | 西安石油大学 | Portable wellhead oil pipe damage detection device |
| CN115684173B (en) * | 2022-10-18 | 2023-03-31 | 国家管网集团北方管道有限责任公司油气储运技术分公司 | Pipeline welding seam positioning device |
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| CN1936554B (en) * | 2005-09-22 | 2010-10-27 | 同方威视技术股份有限公司 | Lifting device with rotating plate |
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| CN1477392A (en) * | 2003-06-12 | 2004-02-25 | 上海交通大学 | Robot automatic detection system of intersecting pipeline welded seam |
| CN1477326A (en) * | 2003-06-12 | 2004-02-25 | 上海交通大学 | Pipeline circumference precision rotation control mechanism |
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