CN105891335A - Adjustable phased array pipeline girth weld detection device - Google Patents
Adjustable phased array pipeline girth weld detection device Download PDFInfo
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- CN105891335A CN105891335A CN201610401056.7A CN201610401056A CN105891335A CN 105891335 A CN105891335 A CN 105891335A CN 201610401056 A CN201610401056 A CN 201610401056A CN 105891335 A CN105891335 A CN 105891335A
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- slide bar
- slide
- wheel
- hole
- flaw detection
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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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/262—Arrangements for orientation or scanning by relative movement of the head and the sensor by electronic orientation or focusing, e.g. with phased arrays
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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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
Abstract
The invention provides an adjustable phased array pipeline girth weld detection device which comprises a body, a magnetic pressing wheel mechanism, an auxiliary bracket, a tightening device, a left flaw detection probe bracket, a right flaw detection probe bracket, a left flaw detection probe and a right flaw detection probe; the body comprises a foundation support, a first sliding rod, a second sliding rod, a sliding rod jackscrew, a left sliding rod linkage frame, a right sliding rod linkage frame, magnetic wheels and wheel shafts; the tightening device is used for tightening the body onto a pipeline to be detected, the magnetic pressing wheel mechanism is arranged between the first sliding rod and the second sliding rod, the auxiliary bracket is connected with the first sliding rod and the second sliding rod of the body, and the flaw detection probe brackets are connected with the flaw detection probes and assist the flaw detection probes in conducting detection on the girth weld of the pipeline to be detected. When the device is used for detecting the pipeline girth weld, the device can rotate steadily around the flaw detection pipeline, therefore the situation that the detection result is affected by vibration and other accidents is prevented, and the device can have the advantages of being wide in applicable range, high in flaw detection sensitivity, high in detection efficiency and the like.
Description
Technical field
The present invention relates to pipeline inspection technical field, a kind of adjustable phased array pipeline girth weld detection device.
Background technology
At present in refinery device installation, big heavy wall, Large Diameter Pipeline pressure pipeline butt girth welding seam Non-Destructive Testing quantities are increasing；Using the detection of A type pulse ultrasonic wave, defect shows the most directly perceived, it is impossible to display defect shape, testing result and defectoscopy are affected by human factors greatly, defects detection evaluation poor repeatability；Employing X-ray detection is more and more difficult even can not detect (penetration power is not enough)；Use gamma-rays detection security protection tired can (some place do not allow uses), detection time length, detection the limited time, half-life short, thus not only cost height, sensitivity is low, detection efficiency is low, seriously governs the factors such as duration of a project, quality, safety.Expect there is a kind of novel detection method that can overcome above-mentioned detection shortcoming.
Ultrasonic phased array technology: phased array english abbreviation PA, at field of non destructive testing, is a kind of senior conventional ultrasound detection technique.Utilize similar phased-array radar, sonar and the principle of other wave physics application, be a kind of different and change the technology of probe performance by the time of electron excitation, be also a kind of scanning and the method for imaging.The especially application in terms of Welded Joints (including flat board docking, the docking of T angle, the docking of Y angle etc.) weld seam detection has unique advantage, and this is that the detection methods such as TOFD, RT cannot realize.Can effectively detect the various planar defects in welding point and volume flaw.Testing result shows with image format, and for defect location, quantitative, qualitative, defining the level provides abundant information.
Wherein, ultrasonic phase array is the combination of ultrasonic probe wafer, the most arranged evenly by multiple piezoelectric chips, the most gradually excite each wafer by prespecified time delay, the ultrasonic wave that all wafers is launched forms an overall wavefront, shape and the direction launching supersonic beam (wave surface) can be efficiently controlled, the beam scanning of ultrasonic wave can be realized, deflect and focus on
In emission process, triggering signal is sent to phased array controller by defectoscope.Phased array controller translates the signals into into specific high electric field pulse, and pulse width presets, and time delay is then defined by focusing rule.Each wafer only receives an electric pulse, and the ultrasonic beam so produced just has certain angle, and focuses on certain depth.This acoustic beam runs into defect and i.e. reflects；After receiving echo-signal, collectiong focusing rule conversion time pressed by phased array controller, and converges together by these signals, forms a pulse signal, is sent to defectoscope；Through Digital Control software analog signal changed into digital information and the display being easy to computer measurement.
But, existing scanner is only suitable for container butt weld detection, has the following aspects to be not suitable for the Sizing In Butt Welded Pipes detection that curvature is bigger.One, scanner horizontal magnet-wheel spacing is relatively big, is not suitable for the adjustment of curvature on a large scale；Its two, probe bracket upper and lower displacement is less, is not suitable for elbow, threeway, concentric reducer and straight tube butt girth welding seam scanning；Its three, probe voussoir be not suitable for more greatly elbow welded junction detection；Its four, for diameter in the detection of the straight tube butt girth welding seam of φ 159～φ 1100mm, the said equipment is the most very inconvenient；Its five, for elbow, threeway, concentric reducer and straight tube weldering butt girth welding seam detection helpless.
Summary of the invention
This technical problem to be solved by this invention is to provide a kind of adjustable phased array pipeline girth weld detection device, this equipment can be around flaw detection pipeline smooth rotation in carrying out pipeline girth weld detection work, solve simultaneously rapidly tube reducing pipeline inspection time, detection equipment such as cannot effectively fix at the problem；This equipment has applied widely, good stability, flaw detection sensitivity advantages of higher.
In order to realize solving the purpose of above-mentioned technical problem, present invention employs following technical scheme:
A kind of adjustable phased array pipeline girth weld detection device, for coordinating the sonic flaw detection instrument being provided with flaw detection probe that pipeline girth weld is detected a flaw, it is characterized in that: include main body, magnetic force pressing wheel mechanism, auxiliary stand, fastener, left and right flaw detection probe bracket, left and right flaw detection probe；
Described main body includes pedestal, the first slide bar, the second slide bar, slide bar jackscrew, left and right slide bar hitch, magnetic wheel and wheel shaft；Described base interior hollow, pedestal side is provided be parallel to each other the first through slide opening and the second slide opening；First slide bar is arranged in the first slide opening；Second slide bar is arranged in the second slide opening, and inner side is provided with moving tooth；Pedestal is positioned at the first slide opening and/or the second slide opening is arranged over the top wire hole through with slide opening, is provided with slide bar jackscrew in top wire hole, is used for holding out against slide bar；Two the 3rd corresponding with the first slide bar and the second slide bar respectively slide openings it are equipped with on the slide bar hitch of described left and right；Two the 3rd slide openings that first slide bar and the second slide bar are each passed through on slide bar hitch, make main body be connected with slide bar hitch；Slide bar hitch both sides are additionally provided with two the second top wire holes connected respectively and two the second jackscrews with the 3rd slide opening, are used for holding out against the first slide bar and the second slide bar；
Pedestal is provided with adjusting knob, and connecting below adjusting knob has the regulation gear being meshed with the moving tooth inside the second slide bar, and rotating adjusting knob can be by regulation gear driven the second sliding bar；Two groups of magnetic wheels are arranged on both sides below pedestal by two wheel shafts respectively, and two wheel shafts are all parallel with the first slide bar；Wherein a wheel shaft is provided with wheel axle gear, and the pedestal above this wheel shaft is provided with hand gear, and described hand gear side is provided with rotation gear, and it engages with wheel axle gear by rotating gear, rotates hand gear and magnetic wheel can be driven to rotate；Slide bar connector connects the first slide bar and one end of the second slide bar, makes the first slide bar and the second slide bar slide simultaneously；Two flaw detection probe brackets are symmetricly set on the first slide bar and the other end of the second slide bar, are used for connecting flaw detection probe；As such, it is possible to by stirring hand gear, make magnetic wheel rotate, band moving base and whole pipeline girth weld detection equipment move；
It is outer away between the first slide bar and second slide bar of pedestal one end that described magnetic force pressing wheel mechanism is arranged on left and right slide bar hitch, connects sheet including magnetic wheel, wheel shaft, wheel carrier, connection sheet, spring loop bar, spring, nut, slide bar；Wheel carrier is inverted U structure, and its both sides, lower end are equipped with pin-and-hole；Being provided with axis hole in the middle part of magnetic wheel, magnetic wheel is arranged in wheel carrier, and magnetic wheel is connected with wheel carrier by wheel shaft through the pin-and-hole of wheel carrier and the axis hole of magnetic wheel；Connect sheet one end and be provided with the through hole that can pass spring loop bar, other end bolt hole；Spring loop bar is vertically set on wheel top of the trellis, and is fixed on wheel carrier top through the through hole connecting sheet, and spring loop bar upper end is provided with thread segment；Nut is arranged on thread segment；Spring housing is located on spring loop bar, and is connecting between sheet and nut；Slide bar connects sheet two ends and is connected with the first slide bar and the second slide bar respectively；Being provided with the bolt hole identical with connecting sheet one end on slide bar connection sheet, slide bar connects sheet and is bolted with the bolt hole being connected sheet；
So, spring is made to be in compressive state by adjusting nut, then spring can apply downward active force by connecting sheet to slide bar, and then detection device is applied downward active force, thus prevent because occurring trembling, producing gap and affect flaw detection effect between the flaw detection probe of pipeline girth weld detection device and pipe under test；
Described auxiliary stand is connected with the first slide bar and second slide bar of main body, holds out against knob including two connection postings, two connecting rods and four；Described connection posting is cuboid framework, and the left and right side frame of cuboid framework is symmetrically arranged with many groups through hole coordinated with connecting rod in correspondence with each other from top to bottom；Connecting rod is separately positioned in two corresponding through holes of connection posting；Connect and be provided with screwed hole on the lateral surface of posting left and right, hold out against knob and be arranged in screwed hole, be used for holding out against connecting rod, prevent connecting rod from relatively connecting posting displacement；
Described connecting rod external diameter and the first slide bar and the second slide bar are identical, and the first slide bar and the second slide bar are arranged in corresponding through hole according to pipeline location to be detected；So, when carrying out carrying out flaw detection, do not move the whole detection device fixed, not only the weld seam of different length position can be detected, by adjusting the first slide bar and the second slide bar height and position within connecting posting two side through hole, tube reducing pipeline can also be carried out weld seam detection；
Described left and right flaw detection probe bracket all includes voussoir holder, bracket holder, slide plate and slide rail；Bracket holder is fixed on slide bar hitch；Slide rail is arranged in bracket holder, and slide plate is connected with slide rail and can slide up and down on slide rail；Two ends, slide plate top are equipped with the first spring being connected with bracket holder；Voussoir holder is connected with slide plate lower end, is used for clamping voussoir；
Described flaw detection probe includes voussoir, ultrasonic phase array generator；
Described voussoir includes trapezoidal block, damping block, two water injection pipes, balls；Described trapezoidal block bottom surface is arcwall face, one side is provided with two for being installed into the connecting hole that the installing hole of water pipe is connected with ultrasonic phase array generator for voussoir with several, installing hole is provided below multiple waterflood path, and two water injection pipes are separately mounted in two installing holes；Arcwall face is provided with at least four ball installing hole, and waterflood path end is passed through arcwall face and forms apopore；Described ball is arranged in ball installing hole；On described trapezoidal block, another side is provided with for damping block mounting groove, and damping block is arranged in mounting groove；Ultrasonic phase array generator is fixed on voussoir prism；Voussoir is fixed on voussoir holder；
Described fastener is for being fastened on pipe under test by main body；
Described fastener includes adjusting means and the chain link of multiple mutual hook；Described adjusting means includes the first connector, the second connector, adjusting rod and the second spring；Described first connector includes hook framework, left and right the first roller, grips frame, the first bearing pin；One end of hook framework is provided with two hooks, and the other end is fixed on gripping frame bottom by rotary shaft, and left and right the first roller is arranged on the both sides of the bottom gripping frame, and the first bearing pin is arranged on the middle part gripping frame；It is provided with through hole in the middle part of first bearing pin；Described second connector includes hook mechanism, left and right the second roller, the second bearing pin；One end of hook mechanism is provided with two hooks, and the both sides of the other end are provided with left and right the second roller；Second bearing pin is arranged on above the second roller of hook mechanism, is provided with screwed hole in the middle part of the second bearing pin；One end of described adjusting rod is provided with expansion-head, and the other end is provided with thread segment；Adjusting rod, through the through hole of the first bearing pin, is arranged in the screwed hole of the second bearing pin by thread segment；Described second spring housing is located on adjusting rod, between expansion-head and the first bearing pin；
Described chain link includes chain link framework, the 3rd roller, the 3rd bearing pin, one end of chain link framework is provided with two hooks, 3rd bearing pin is arranged on the other end of chain link framework, 3rd roller is arranged on the middle part of the 3rd bearing pin, the two ends of the 3rd bearing pin are provided with stop part, are connecting portion between stop part and the chain link framework of the 3rd bearing pin；First connector, the second connector hook in a connecting portion being hooked on a chain link, another is hooked on the wheel shaft of body side, and the hook of this chain link is hooked on the connecting portion of other chain links or is hooked on the wheel shaft of main body opposite side.
Concrete: described fastener is furnished with the chain link of different length.
Concrete: it is equipped with hoodle inside the hook of described first connector, the second connector and chain link.When hook hook bearing pin, hoodle is clamp-oned hook inwall by bearing pin through hoodle position, bearing pin behind hoodle position, hoodle automatic spring again；Arranging hoodle is to strengthen stability when hook is hooked on other bearing pins, making hook be not easily disconnected from bearing pin.
Concrete: the trapezoidal block material of described voussoir is lucite.
Concrete: described ball protrudes arcwall face 1-4mm.
Concrete: described ball installing hole is arranged on four corners of arcwall face.
The most concrete, it is additionally provided with two groups of gear drives of before and after, water inlet current divider, a position coder in described pedestal；Front group of gear drive, is connected with magnet pulley and the position coder of front end；Rear group of gear drive, is connected with the magnet pulley of rear end；Entrance water source is diverted to the porch on two probe voussoirs by water inlet current divider；Position coder is in order to record the distance that magnet pulley moves.
The most concrete, described water inlet current divider is made up of an import and two outlets, and an entrance water source is diverted to the porch on two probe voussoirs.
The most concrete, it is additionally provided with slide bar left and right moving control device in described pedestal, has gear to connect moving tooth inside the second slide bar in slide bar left and right moving control device, control slide bar displacement.
Concrete, the described thickness connecting posting should ensure that the stability of whole support.
Concrete, described through hole and connecting rod are tight fit.
Ball described in this patent, damping block, be prior art.
Using method: first pass through fastener and pipeline girth weld is detected device be fastened in pipe under test, particularly as follows: by the diameter estimating pipe under test, the link set utilizing different length becomes length suitable chain pitch chain, on the wheel shaft of the side first hook of the first connector of adjusting means being hooked on main body, on 3rd bearing pin of the chain link that the hook of the second connector is hooked on chain link chain tail end, on the wheel shaft of the opposite side that the hook of another chain link of chain link chain head end is hooked on main body；Then rotation adjusting lever, the thread segment of adjustment adjusting rod position in the screwed hole of the second bearing pin, reach to regulate the effect of the spacing of the first connector and the second connector, also reach to finely tune the purpose of the length of abridged edition auxiliary fixing device, make this fastener that pipeline girth weld is detected device to be steadily fixed in pipe under test, and keep the pressure of suitable roller and pipeline；When pipeline girth weld detection device needs to carry out seam inspection work around pipe under test, the roller arranged on this auxiliary fixing device will slide therewith, still ensure that the steady laminating between pipeline girth weld detection device and pipe under test, be conducive to improving the reliability of pipeline girth weld detection device Effect on Detecting；And it being arranged on the spring between the expansion-head of adjusting rod and the first bearing pin, it is ensured that this device has certain elastic length surplus, it is simple to pipeline girth weld detection device ring moves around pipe under test.
Then voussoir is moved to pipe under test girth joint position, particularly as follows: rotation adjusting knob, owing to slide bar connector connects the first slide bar and one end of the second slide bar, then adjusting knob drives the first slide bar and the second slide bar to slide simultaneously, so that flaw detection probe bracket moves horizontally with the first slide bar and the second slide bar, stop when covering the position while welding of pipe under test to the voussoir being connected with the voussoir holder of flaw detection probe bracket；Now tighten slide bar jackscrew, make slide bar jackscrew hold out against the first slide bar, then the first slide bar and the second slide bar will not move again, and voussoir position is fixed.
Then flaw detection probe is arranged on voussoir by the connecting hole by being arranged on voussoir, water system is injected water into by water injection pipe, remain that water flows between voussoir and detected pipeline from the delivery port being arranged on arcwall face, form uniform couplant, complete highly sensitive ultrasonic examination operation；And, ball decreases the pipeline abrasion to voussoir when detection equipment moves on pipeline, adds the service life of voussoir；Also reduce the protruding impact on flaw detection operation of the exception on pipeline, improve flaw detection Efficiency and accuracy.
Finally rotate hand gear, then the rotation gear driven magnetic wheel that what hand gear was arranged by side be meshed with wheel axle gear rotates；Magnetic wheel rotates and drives main ring to move around pipe under test, and then makes voussoir and flaw detection probe carry out detecting work around the weld seam of pipe under test.
By using technique scheme, the present invention has a following beneficial effect:
1, adjustable phased array pipeline girth weld detection device of the present invention is provided with fastener, pipeline girth weld can be detected device and be stabilized on pipeline by this device, and ensure that pipeline girth weld detection device ring steadily moves around pipe under test, thus increase the reliability of pipeline girth weld detection device Effect on Detecting.
2, fastener can regulate the first connector and the spacing of the second connector by adjusting rod, thus finely tunes the length of abridged edition auxiliary fixing device, improves the auxiliary fixed effect of this device；And keep the pressure of suitable roller and pipeline.
3, it is equipped with roller on the adjusting means of fastener and chain link, make when pipeline girth weld detection device needs to carry out seam inspection work around pipe under test, this device energy entirety is slided therewith, it is simple to ensure the steady laminating between pipeline girth weld detection device and pipe under test.
4, the spring between expansion-head and first bearing pin of fastener, thus ensure that this device has certain elastic length surplus, it is simple to pipeline girth weld detection equipment moves around pipe under test.
5, to have wear intensity little for the voussoir of this equipment, service life length advantage；This voussoir can meet multiple ultrasonic examination job requirements, applied widely, and flaw detection sensitivity is high.
6, the setting of the arcwall face of voussoir can make to pop one's head in contact with detected pipeline external surface and more fit, and can meet the ultrasonic examination requirement of different tube diameters；The setting of apopore makes couplant more uniform, decreases the bubble interference to flaw detection sensitivity；Ball decreases when ultrasonic examination operation, and the pipeline abrasion to voussoir when detection equipment moves on pipeline adds the service life of voussoir；And reduce frictional force when detecting a flaw operation, reduce the protruding impact on flaw detection operation of the exception on pipeline, improve flaw detection Efficiency and accuracy.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
In figure, 1-pedestal, 2-fastener, 3-slide bar holder, 4-magnetic wheel, 5-adjusting knob, 6-slide bar holder, 7-magnetic force pressing wheel mechanism, 8-pops one's head in, 9-slide bar, and 10-detects a flaw probe bracket；11-slide bar jackscrew.
Fig. 2 is that hand gear is by rotating the structural representation that gear is connected with the wheel axle gear on wheel shaft.
In figure, 21-hand gear, 22-rotates gear, 23-wheel axle gear, 24-magnetic wheel.
Fig. 3 is the structural representation of flaw detection probe bracket.
In figure, 31-bracket holder, 32-the first spring, 33-slide rail, 34-slide plate, 35-slide bar hitch, 36-voussoir holder.
Fig. 4 is the structural representation of adjusting means.
Fig. 5 is the structural representation of the chain link of fastener.
Fig. 6 is the structural representation of the first connector of adjusting means.
Fig. 7 is the structural representation of the second connector of adjusting means.
Fig. 8 is the overall schematic of voussoir.
Fig. 9 is another overall schematic of voussoir.
Figure 10 is the front view of voussoir.
Figure 11 is the rearview of voussoir.
Figure 12 is auxiliary stand overall schematic.
Figure 13 is magnetic force pressing wheel mechanism schematic diagram.
Figure 14 is the structural representation of wheel carrier.
Figure 15 is the structural representation connecting sheet.
null201-the second connector，202-adjusting rod，203-spring，204-the first connector，205-the 3rd bearing pin，206-the 3rd roller，207-hook，208-the first bearing pin，209-the first roller，210-the second roller，211-the second bearing pin，401-trapezoidal voussoir body，402-water injection pipe，403-ball installing hole，404-connecting hole、405-apopore，406-damping block mounting groove，501-connects posting，502-connecting rod，503-holds out against knob，4-through hole，505-screwed hole，601-spring loop bar，602-nut，603-spring，604-connects sheet，605-wheel carrier，606-wheel shaft，607-magnetic wheel，608-pin-and-hole，609-through hole，610-bolt hole，611 slide bars connect sheet.
Detailed description of the invention
With embodiment, this patent is further explained below in conjunction with the accompanying drawings.But the protection domain of this patent is not limited to specific embodiment.
Embodiment 1
As shown in drawings, one adjustable phased array pipeline girth weld detection device of this patent, for coordinating the sonic flaw detection instrument being provided with flaw detection probe 8 that pipeline girth weld is detected a flaw, including main body, fastener 2, left and right flaw detection probe bracket 10 and left and right flaw detection probe 8.
Described main body includes pedestal the 1, first slide bar, the second slide bar, slide bar jackscrew 11, left and right slide bar hitch 35, magnetic wheel 4 and wheel shaft；Described pedestal 1 inner hollow, pedestal 1 side is provided be parallel to each other the first through slide opening and the second slide opening；First slide bar is arranged in the first slide opening；Second slide bar is arranged in the second slide opening, and inner side is provided with moving tooth；Pedestal 1 is positioned at the first slide opening and/or the second slide opening is arranged over the top wire hole through with slide opening, is provided with slide bar jackscrew 11 in top wire hole, is used for holding out against slide bar 9；Two the 3rd corresponding with the first slide bar and the second slide bar respectively slide openings it are equipped with on described slide bar hitch 35；Two the 3rd slide openings that first slide bar and the second slide bar are each passed through on slide bar hitch 35, make main body be connected with slide bar hitch 35；Slide bar hitch 35 both sides are additionally provided with two the second top wire holes connected respectively and two the second jackscrews with the 3rd slide opening, are used for holding out against the first slide bar and the second slide bar；
Pedestal 1 is provided with adjusting knob 5, and connecting below adjusting knob 5 has the regulation gear being meshed with the moving tooth inside the second slide bar, and rotating adjusting knob 5 can be by regulation gear driven the second sliding bar；Two groups of magnetic wheels 4 are arranged on both sides below pedestal 1 by two wheel shafts 606 respectively, and two wheel shafts 606 are all parallel with the first slide bar；Wherein a wheel shaft is provided with wheel axle gear 23, and the pedestal 1 above this wheel shaft is provided with hand gear 21, and described hand gear 21 side is provided with rotation gear 22, and it engages with wheel axle gear 23 by rotating gear 22, rotates hand gear 21 and magnetic wheel 4 can be driven to rotate；Slide bar 9 connector connects the first slide bar and one end of the second slide bar, makes the first slide bar and the second slide bar slide simultaneously；Two flaw detection probe brackets 10 are symmetricly set on the first slide bar and the other end of the second slide bar, are used for connecting flaw detection probe 8；As such, it is possible to by stirring hand gear 21, make magnetic wheel 4 rotate, band moving base 1 and whole pipeline girth weld detection equipment move；
Described left and right flaw detection probe bracket 10 all includes voussoir holder 36, bracket holder the 31, second jackscrew, slide plate 34 and slide rail 33；Bracket holder 31 is fixed on slide bar hitch 35；Slide rail 33 is arranged in bracket holder 31, and slide plate 34 is connected with slide rail 33 and can slide up and down on slide rail 33；Two ends, slide plate 34 top are equipped with the first spring 32 being connected with bracket holder 31；Voussoir holder 36 is connected with slide plate 34 lower end, is used for clamping voussoir；
Described flaw detection probe 8 includes voussoir, ultrasonic phase array generator；
Described voussoir includes trapezoidal block, damping block, two water injection pipes 402, balls；Described trapezoidal block bottom surface is arcwall face, one side is provided with two for being installed into the connecting hole 404 that the installing hole of water pipe is connected with ultrasonic phase array generator for voussoir with several, installing hole is provided below multiple waterflood path, and two water injection pipes 402 are separately mounted in two installing holes；Arcwall face is provided with at least four ball installing hole 403, and waterflood path end is passed through arcwall face and forms apopore 405；Described ball is arranged in ball installing hole 403；On described trapezoidal block, another side is provided with for damping block mounting groove 406, and damping block is arranged in mounting groove；Ultrasonic phase array generator is fixed on voussoir prism；Voussoir is fixed on voussoir holder 36.Trapezoidal block material is lucite.Ball installing hole 403 is arranged on four corners of arcwall face, and ball protrudes arcwall face 1-4mm.Fastener 2 is for being fastened on pipe under test by main body；Fastener 2 is furnished with the chain link of different length.
Described fastener 2 includes adjusting means and the chain link of multiple mutual hook；Described adjusting means includes first connector the 204, second connector 201, adjusting rod 202 and the second spring 203；Described first connector 204 includes hook 207 framework, left and right the first roller 209, grips frame, the first bearing pin 208；One end of hook 207 framework is provided with two hooks 207, and the other end is fixed on gripping frame bottom by rotary shaft, and left and right the first roller 209 is arranged on the both sides of the bottom gripping frame, and the first bearing pin 208 is arranged on the middle part gripping frame；It is provided with through hole in the middle part of first bearing pin 208；Described second connector 201 includes hook mechanism, left and right the second roller the 210, second bearing pin 211；One end of hook mechanism is provided with two hooks 207, and the both sides of the other end are provided with left and right the second roller 210；Second bearing pin 211 is arranged on above the second roller 210 of hook mechanism, is provided with screwed hole 505 in the middle part of the second bearing pin 211；One end of described adjusting rod 202 is provided with expansion-head, and the other end is provided with thread segment；Adjusting rod 202, through the through hole of the first bearing pin 208, is arranged in the screwed hole 505 of the second bearing pin 211 by thread segment；Described second spring 603 is set on adjusting rod 202, between expansion-head and the first bearing pin 208；
Described chain link includes chain link framework, the 3rd roller the 206, the 3rd bearing pin 205, one end of chain link framework is provided with two hooks, 3rd bearing pin 205 is arranged on the other end of chain link framework, 3rd roller 206 is arranged on the middle part of the 3rd bearing pin 205, the two ends of the 3rd bearing pin 205 are provided with stop part, are connecting portion between stop part and the chain link framework of the 3rd bearing pin 205；A connecting portion being hooked on a chain link in the hook of first connector the 204, second connector 201, another is hooked on the wheel shaft 606 of body side, and the hook of this chain link is hooked on the connecting portion of other chain links or is hooked on the wheel shaft 606 of main body opposite side.
It is equipped with hoodle inside the hook 207 of described first connector the 204, second connector 201 and chain link.When hook 207 hook bearing pin, hoodle is clamp-oned hook 207 inwall by bearing pin through hoodle position, bearing pin behind hoodle position, hoodle automatic spring again；Arranging hoodle is to strengthen stability when hook 207 is hooked on other bearing pins, makes hook 207 be not easily disconnected from bearing pin.
Two groups of gear drives of before and after, water inlet current divider, position coder, a slide bar 9 left and right moving control device it is provided with in described pedestal 1.It acts on respectively: one, front gear transmission device, is connected with 2, front end magnet pulley and position coder；Its two, backgear transmission device, be connected with 2, rear end magnet pulley；Its three, water inlet current divider be made up of an import and two outlets, an entrance water source is diverted to two probe 8 voussoirs on porch；Its four, position coder is the record distance that moves of magnet pulley；Its five, have gear to connect moving tooth inside the second slide bar in slide bar 9 left and right moving control device, control slide bar 9 displacement.
During use, first pass through fastener 2 pipeline girth weld detects device to be fastened in pipe under test, particularly as follows: by the diameter estimating pipe under test, the link set utilizing different length becomes length suitable chain pitch chain, on the wheel shaft 606 of the side first hook of the first connector 204 of adjusting means being hooked on main body, on 3rd bearing pin 205 of the chain link that the hook of the second connector 201 is hooked on chain link chain tail end, on the wheel shaft 606 of the opposite side that the hook of another chain link of chain link chain head end is hooked on main body；Then rotation adjusting lever 202, the thread segment of adjustment adjusting rod 202 position in the screwed hole 505 of the second bearing pin 211, reach to regulate the effect of the spacing of the first connector 204 and the second connector 201, also reach to finely tune the purpose of the length of abridged edition auxiliary fixing device, make this fastener 2 that pipeline girth weld is detected device to be steadily fixed in pipe under test, and keep the pressure of suitable roller and pipeline；When pipeline girth weld detection device needs to carry out seam inspection work around pipe under test, the roller arranged on this auxiliary fixing device will slide therewith, still ensure that the steady laminating between pipeline girth weld detection device and pipe under test, be conducive to improving the reliability of pipeline girth weld detection device Effect on Detecting；And it being arranged on the spring 603 between the expansion-head of adjusting rod 202 and the first bearing pin 208, it is ensured that this device has certain elastic length surplus, it is simple to pipeline girth weld detection device ring moves around pipe under test.
Then voussoir is moved to pipe under test girth joint position, particularly as follows: rotate adjusting knob 5, owing to slide bar 9 connector connects the first slide bar and one end of the second slide bar, then adjusting knob 5 drives the first slide bar and the second slide bar to slide simultaneously, so that flaw detection probe bracket 10 moves horizontally with the first slide bar and the second slide bar, stop when covering the position while welding of pipe under test to the voussoir being connected with the voussoir holder 36 of flaw detection probe bracket 10；Now tighten slide bar jackscrew 11, make slide bar jackscrew 11 hold out against the first slide bar, then the first slide bar and the second slide bar will not move again, and voussoir position is fixed.
Then flaw detection probe 8 is arranged on voussoir by the connecting hole 404 by being arranged on voussoir, water system is injected water into by water injection pipe 402, remain that water flows between voussoir and detected pipeline from the delivery port being arranged on arcwall face, form uniform couplant, complete highly sensitive ultrasonic examination operation；And, ball decreases the pipeline abrasion to voussoir when detection equipment moves on pipeline, adds the service life of voussoir；Also reduce the protruding impact on flaw detection operation of the exception on pipeline, improve flaw detection Efficiency and accuracy.
Finally rotate hand gear 21, then the rotation gear 22 being meshed with wheel axle gear 23 that hand gear 21 is arranged by side drives magnetic wheel 4 to rotate；Magnetic wheel 4 rotates and drives main ring to move around pipe under test, and then makes voussoir and flaw detection probe 8 carry out detecting work around the weld seam of pipe under test.
Claims (7)
1. adjustable phased array pipeline girth weld detection device, for coordinating the sonic flaw detection instrument being provided with flaw detection probe that pipeline girth weld is detected a flaw, it is characterized in that: include main body, magnetic force pressing wheel mechanism, auxiliary stand, fastener, left and right flaw detection probe bracket, left and right flaw detection probe；
Described main body includes pedestal, the first slide bar, the second slide bar, slide bar jackscrew, left and right slide bar hitch, magnetic wheel and wheel shaft；Described base interior hollow, pedestal side is provided be parallel to each other the first through slide opening and the second slide opening；First slide bar is arranged in the first slide opening；Second slide bar is arranged in the second slide opening, and inner side is provided with moving tooth；Pedestal is positioned at the first slide opening and/or the second slide opening is arranged over the top wire hole through with slide opening, is provided with slide bar jackscrew in top wire hole, is used for holding out against slide bar；Two the 3rd corresponding with the first slide bar and the second slide bar respectively slide openings it are equipped with on the slide bar hitch of described left and right；Two the 3rd slide openings that first slide bar and the second slide bar are each passed through on slide bar hitch, make main body be connected with slide bar hitch；Slide bar hitch both sides are additionally provided with two the second top wire holes connected respectively and two the second jackscrews with the 3rd slide opening, are used for holding out against the first slide bar and the second slide bar；
Pedestal is provided with adjusting knob, and connecting below adjusting knob has the regulation gear being meshed with the moving tooth inside the second slide bar, and rotating adjusting knob can be by regulation gear driven the second sliding bar；Two groups of magnetic wheels are arranged on both sides below pedestal by two wheel shafts respectively, and two wheel shafts are all parallel with the first slide bar；Wherein a wheel shaft is provided with wheel axle gear, and the pedestal above this wheel shaft is provided with hand gear, and described hand gear side is provided with rotation gear, and it engages with wheel axle gear by rotating gear, rotates hand gear and magnetic wheel can be driven to rotate；Slide bar connector connects the first slide bar and one end of the second slide bar, makes the first slide bar and the second slide bar slide simultaneously；Two flaw detection probe brackets are symmetricly set on the first slide bar and the other end of the second slide bar, are used for connecting flaw detection probe；
It is outer away between the first slide bar and second slide bar of pedestal one end that described magnetic force pressing wheel mechanism is arranged on left and right slide bar hitch, connects sheet including magnetic wheel, wheel shaft, wheel carrier, connection sheet, spring loop bar, spring, nut, slide bar；Wheel carrier is inverted U structure, and its both sides, lower end are equipped with pin-and-hole；Being provided with axis hole in the middle part of magnetic wheel, magnetic wheel is arranged in wheel carrier, and magnetic wheel is connected with wheel carrier by wheel shaft through the pin-and-hole of wheel carrier and the axis hole of magnetic wheel；Connect sheet one end and be provided with the through hole that can pass spring loop bar, other end bolt hole；Spring loop bar is vertically set on wheel top of the trellis, and is fixed on wheel carrier top through the through hole connecting sheet, and spring loop bar upper end is provided with thread segment；Nut is arranged on thread segment；Spring housing is located on spring loop bar, and is connecting between sheet and nut；Slide bar connects sheet two ends and is connected with the first slide bar and the second slide bar respectively；Being provided with the bolt hole identical with connecting sheet one end on slide bar connection sheet, slide bar connects sheet and is bolted with the bolt hole being connected sheet；
Described auxiliary stand is connected with the first slide bar and second slide bar of main body, holds out against knob including two connection postings, two connecting rods and four；Described connection posting is cuboid framework, and the left and right side frame of cuboid framework is symmetrically arranged with many groups through hole coordinated with connecting rod in correspondence with each other from top to bottom；Connecting rod is separately positioned in two corresponding through holes of connection posting；Connect and be provided with screwed hole on the lateral surface of posting left and right, hold out against knob and be arranged in screwed hole, be used for holding out against connecting rod, prevent connecting rod from relatively connecting posting displacement；
Described connecting rod external diameter and the first slide bar and the second slide bar are identical, and the first slide bar and the second slide bar are arranged in corresponding through hole according to pipeline location to be detected；
Described left and right flaw detection probe bracket all includes voussoir holder, bracket holder, the second jackscrew, slide plate and slide rail；Bracket holder is fixed on slide bar hitch；Slide rail is arranged in bracket holder, and slide plate is connected with slide rail and can slide up and down on slide rail；Two ends, slide plate top are equipped with the first spring being connected with bracket holder；Voussoir holder is connected with slide plate lower end, is used for clamping voussoir；
Described flaw detection probe includes voussoir, ultrasonic phase array generator；
Described voussoir includes trapezoidal block, damping block, two water injection pipes, balls；Described trapezoidal block bottom surface is arcwall face, one side is provided with two for being installed into the connecting hole that the installing hole of water pipe is connected with ultrasonic phase array generator for voussoir with several, installing hole is provided below multiple waterflood path, and two water injection pipes are separately mounted in two installing holes；Arcwall face is provided with at least four ball installing hole, and waterflood path end is passed through arcwall face and forms apopore；Described ball is arranged in ball installing hole；On described trapezoidal block, another side is provided with for damping block mounting groove, and damping block is arranged in mounting groove；Ultrasonic phase array generator is fixed on voussoir prism；Voussoir is fixed on voussoir holder；
Described fastener is for being fastened on pipe under test by main body；.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, is characterized in that: described fastener is furnished with the chain link of different length.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, is characterized in that: the trapezoidal block material of described voussoir is lucite.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, is characterized in that: described ball protrudes arcwall face 1-4mm.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, is characterized in that: described ball installing hole is arranged on four corners of arcwall face.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, is characterized in that: be additionally provided with two groups of gear drives of before and after, water inlet current divider, a position coder in described pedestal；Front group of gear drive, is connected with magnet pulley and the position coder of front end；Rear group of gear drive, is connected with the magnet pulley of rear end；Entrance water source is diverted to the porch on two probe voussoirs by water inlet current divider；Position coder is in order to record the distance that magnet pulley moves.
Adjustable phased array pipeline girth weld the most according to claim 1 detection device, it is characterized in that: in described pedestal, be additionally provided with slide bar left and right moving control device, there is gear to connect moving tooth inside the second slide bar in slide bar left and right moving control device, control slide bar displacement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610401056.7A CN105891335B (en) | 2015-10-09 | 2015-10-09 | A kind of adjustable phased array pipeline girth weld detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610401056.7A CN105891335B (en) | 2015-10-09 | 2015-10-09 | A kind of adjustable phased array pipeline girth weld detection device |
| CN201510644680.5A CN105158336B (en) | 2015-10-09 | 2015-10-09 | A kind of multifunction supersonic phased array pipeline girth weld detection device |
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| CN201510644680.5A Division CN105158336B (en) | 2015-10-09 | 2015-10-09 | A kind of multifunction supersonic phased array pipeline girth weld detection device |
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| CN201610401035.5A Active CN106093198B (en) | 2015-10-09 | 2015-10-09 | High-stability supersonic phased array pipeline girth weld detection device |
| CN201610401026.6A Active CN105891334B (en) | 2015-10-09 | 2015-10-09 | The ultrasonic phase array pipeline girth weld testing agency that can steadily move |
| CN201610401056.7A Active CN105891335B (en) | 2015-10-09 | 2015-10-09 | A kind of adjustable phased array pipeline girth weld detection device |
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| CN201610401035.5A Active CN106093198B (en) | 2015-10-09 | 2015-10-09 | High-stability supersonic phased array pipeline girth weld detection device |
| CN201610401026.6A Active CN105891334B (en) | 2015-10-09 | 2015-10-09 | The ultrasonic phase array pipeline girth weld testing agency that can steadily move |
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| CN108397691A (en) * | 2018-03-07 | 2018-08-14 | 湘潭大学 | A kind of scanning equipment for being detected outside industrial pipeline elbow |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105158336B (en) | 2017-12-22 |
| CN106093198B (en) | 2018-07-31 |
| CN106093198A (en) | 2016-11-09 |
| CN105891334B (en) | 2018-08-28 |
| CN105158336A (en) | 2015-12-16 |
| CN105891335B (en) | 2018-08-28 |
| CN105891334A (en) | 2016-08-24 |
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