CN109557188A - Flaw detection crawl frame - Google Patents
Flaw detection crawl frame Download PDFInfo
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- CN109557188A CN109557188A CN201710871935.0A CN201710871935A CN109557188A CN 109557188 A CN109557188 A CN 109557188A CN 201710871935 A CN201710871935 A CN 201710871935A CN 109557188 A CN109557188 A CN 109557188A
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- flaw detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 72
- 230000009193 crawling Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 13
- 210000000481 breast Anatomy 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
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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
-
- 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
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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
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- 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
- G01N2291/263—Surfaces
- G01N2291/2634—Surfaces cylindrical from outside
-
- 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
- G01N2291/263—Surfaces
- G01N2291/2636—Surfaces cylindrical from inside
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of flaw detection crawl frames, its key points of the technical solution are that a kind of flaw detection crawl frame, include: active crawling device, driven crawling device, the linkage assemblies for connecting active crawling device and driven crawling device, including be located on active frame locking bar, positioned at from moving frame for being engaged the jam plate of locking bar；It is bolted with limit sleeve on locking bar, is arranged on locking bar for pushing the fastening spring slid from moving frame to active frame, fastening spring is between jam plate and limit sleeve.Automatic creeping detection is realized by motor；Have the function of that five heavy self-adapting pipe shapes are adjusted, realize that the component of each function is main are as follows: fastening spring, fine tuning spring, movable block, rotating block, the flexible material on drive roll, it is adjusted over long distances from being fine-tuning to, adjusts from rotational angle to material and adjust, have both various adjustment effects.
Description
Technical field
The present invention relates to pipe detection field of tool, in particular to a kind of flaw detection crawl frame.
Background technique
Pipeline is influenced in long-term operation by temperature, medium, stress and environment, will cause corrosion and material is disliked
Change, if very big loss will be caused to enterprise without effective monitoring or maintenance.Importantly, pipe leakage and quick-fried
It is fried etc. that environment will be caused greatly to pollute and endanger.
Currently, the Chinese patent that notification number in the market is CN202182874U discloses a kind of ultrasonic diffraction time difference method group
Box-like scanning frame, torsional spring mounting plate are equipped with the structure docked with girder with magnet-wheel mounting rack, in can slide and lead on girder
Cross the form that butterfly-type bolt is locked on girder；On probe bracket, probe bracket is connected by probe shaft with swing arm probe,
The up and down motion of probe is realized by two-stage rotational structure；For torque spring on torsion axis, torque spring one end and swing arm are solid
It is fixed, downward elastic force is provided by swing arm, probe bracket is pressed into examined workpiece；There are several different angles on probe mounting plate
Fixing groove, the other end of torque spring are stuck in the fixing groove；Magnet-wheel is fixed on magnet-wheel mounting rack by magnet-wheel axis；Guide wheel
Also it installs on magnet-wheel mounting rack.
Above scheme shows the basic structure of current scanning frame, which in actual use, it is longer to be directed to length
Pipeline, need operator to transfer back and forth, operation is more troublesome.
Summary of the invention
The object of the present invention is to provide a kind of flaw detection crawl frames, its advantage is that can be detected a flaw along pipeline automatic creeping,
Detection.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of flaw detection crawl frame, comprising:
Active crawling device, including active frame, the driving assembly that active frame is equipped with drive roll, drives drive roll rotation；
Driven crawling device, including from moving frame, driven voller is equipped with from moving frame；
Active frame and the arc detection plate for being bonded pipeline is equipped with from moving frame, arc detection plate is visited equipped with several detections
Head；
For connecting the linkage assemblies of active crawling device and driven crawling device, including be located at active frame on locking bar, be located at
From the jam plate for being used to be engaged locking bar in moving frame；Limit sleeve is bolted on locking bar, be arranged on locking bar for push from moving frame to
The fastening spring of active frame sliding, fastening spring is between jam plate and limit sleeve.
Through the above technical solutions, active crawling device and driven crawling device are wrapped up before detecting a flaw to pipeline
It is further that linkage assemblies is recycled to splice active crawling device and driven crawling device in pipeline outer wall；Operation connects
When lock set, locking bar is inserted into jam plate, connection is on the one hand realized, on the other hand realizes guiding, simultaneously clamp on spring act on from
In moving frame, when pipeline produces deformation, by the deformation of fastening spring, active frame and expansions can be received from moving frame, therefore detect a flaw and creep
Frame has preferable adaptive ability, realizes soft readjustment, and driving assembly drives drive roll rotation, and drive roll is climbed along tube wall
Row, so that whole device be driven to creep along pipeline outer wall, the detection probe in arc detection plate carries out carrying out flaw detection to pipeline, should
Process saves labour without artificial push.
The present invention is further arranged to: the active frame is equipped with guide rod, and the jam plate includes the first buckle and second
Buckle, the first buckle is with the second buckle phase spell shape at the guide groove being inserted into for guide rod, for the locked groove of locking bar insertion, the first buckle
And second be equipped with catch assembly between buckle.
Through the above technical solutions, active frame is additionally arranged guide rod, therefore improve active frame and from the company between moving frame
Stability is connect, the opposite oscillating quantity of the two is reduced；In addition guide rod improves the stability for expanding sliding from the receipts of moving frame.Using
Catch assembly is easy to operate, can assemble the first buckle and the second buckle without additional tool.
The present invention is further arranged to: being hinged with chain frame on the active frame, handle, handle packet are hinged on chain frame
It includes and extends and be mutually L-shaped grip part and folding portion with its hinge joint, folding portion and locking bar are rotatablely connected.
Through the above technical solutions, chain frame, folding portion and the locking bar on active frame constitute the knot of similar triangle
Structure, as the angle of chain frame and folding portion incrementally increases, locking bar is gradually above mentioned, when the angle of chain frame and folding portion is formed
When for 180 degree, chain frame and folding portion are in same straight line with locking bar just, and three is in relatively steady state at this time, because
This is able to maintain locking, and the effect locked at this time is to keep the contraction state of locking spring, improves arc detection plate and pipeline
Closeness of contact；When unlock, the longer handle of operational torque is operated more laborsaving.
The present invention is further arranged to: the active frame and being equipped with grip block from moving frame, folder is equipped on grip block
Axis is held, clamping axis is equipped with adjustable plate, the fine tuning bullet for driving arc detection plate to draw close in opposite directions is equipped between adjustable plate and grip block
Spring.
Through the above technical solutions, adjustable plate is slidably with respect to grip block, fine tuning spring drives clamping axis by adjustable plate
Sliding, thus two clamping axis drive arc detection plate close；Arc detection plate can adapt to generate to receive in the deformation of pipeline to expand,
In conjunction with fastening spring, double adjusting is realized altogether.
The present invention is further arranged to: being slidably connected limit plate on the clamping axis, and is clamped the shaft shoulder on axis for limit
Position plate contradicts, and clamping the tip of the axis is threaded with the lock nut for clamping limit plate.
Through the above technical solutions, limit plate is in the top of clamping axis, there is position-limiting action to the position of adjustable plate,
It can prevent adjustable plate from skidding off clamping axis.
The present invention is further arranged to: the clamping axis is equipped with fixed block close to one end of arc detection plate, and clamping axis is
Two, movable block is rotatably connected between two fixed blocks, movable block drives the rotation of arc detection plate.
Through the above technical solutions, movable block can rotate small angle, thus, it is possible to be adapted to the deformation of pipeline,
The consume of arc detection plate is can be reduced during this；Triple adjustings are realized in conjunction with aforementioned structure.
The present invention is further arranged to: the arc detection plate is equipped with rotating block, two rotations close to the two sides of movable block
Shaft between block passes through movable block and is mutually perpendicular to the shaft of movable block, and rotating block drives the rotation of arc detection plate.
Through the above technical solutions, the shaft of two rotating blocks passes through movable block, arc detection plate thus can be driven to rotate
The rotational plane of small angle, the rotational plane and aforementioned active block is perpendicular, thus further improves arc detection plate
Flexibility ratio, arc detection plate have quadruple regulating power.
The present invention is further arranged to: the inside of the arc detection plate is equipped with wearing layer, and running through in arc detection plate has
The outlet tube being passed through for couplant.
Through the above technical solutions, the endothecium structure service life of arc detection plate is increased using wearing layer, after consume
Replaceable, after outlet tube is passed through couplant, the air between probe and detected pipeline is coupled agent discharge, thereby reduces inspection
Gap is surveyed, enables ultrasonic wave smoothly to penetrate detected pipeline, improves test accuracy.
The present invention is further arranged to: the driving component includes motor, the driving shaft vertical with the length direction of motor,
The drive shaft vertical with driving shaft is equipped in active frame, motor, driving shaft and drive shaft pass through Bevel Gear Transmission；
Two drive rolls are equipped with driven wheel, drive shaft is equipped with driving wheel, are engaged between driving wheel and each driven wheel
Between take turns.
Through the above technical solutions, servo motor or stepper motor can be used in motor, to realize pipe detection distance
Control；Drive shaft turns are driven when the output shaft rotation of motor, drive shaft drives two breast wheels, two centres by driving wheel
Wheel drives drive roll rotation, and drive roll is bonded with pipeline outer wall, and realization is creeped.
The present invention is further arranged to: the drive roll is equipped with flexible material, and drive roll is cylindric, driven voller V
Type roll structure.
Through the above technical solutions, flexible material can be improved the closeness of contact of drive roll and pipeline, drive roll is creeped
When it is relatively stable be not easy to skid, the driven voller of V-structure can well adapt to the outer wall shape of pipeline, and crawling process is more steady
It is fixed, while the small volume of driven voller, lighter in weight, rotary resistance are smaller.
In conclusion the invention has the following advantages:
1, automatic creeping detection is realized by motor；
2, have the function of that five heavy self-adapting pipe shapes are adjusted, realize that the component of each function is main are as follows: fastening spring,
Finely tune spring, movable block, rotating block, the flexible material on drive roll, adjusted over long distances from being fine-tuning to, from rotational angle adjust to
Material is adjusted, and has both various adjustment effects.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the schematic cross-sectional view of the present embodiment；
Fig. 3 is the fractionation structural representation of the present embodiment；
Fig. 4 is the structural schematic diagram for hiding the second buckle of the present embodiment；
Fig. 5 is enlarged drawing at A in Fig. 3；
Fig. 6 is enlarged drawing at B in Fig. 1；
Fig. 7 is enlarged drawing at C in Fig. 3；
Fig. 8 is the adjustable plate of the present embodiment and the fractionation structural representation of limit plate；
Fig. 9 is the schematic diagram that the present embodiment embodies fixed block and arc detection plate distance.
Appended drawing reference: 1, pipeline；2, active crawling device；21, active frame；22, drive roll；23, driving assembly；231, electric
Machine；232, bevel gear；233, driving shaft；234, drive shaft；235, driving wheel；236, breast wheel；237, driven wheel；24, it lifts
Ring；3, driven crawling device；31, from moving frame；32, driven voller；4, linkage assemblies；41, junction panel；42, locking bar；421, it limits
Set；422, internal axle sleeve；423, outer shaft；424, fastening spring；43, guide rod；44, the first buckle；45, the second buckle；46, it locks
Slot；461, slot is served as a contrast；47, guide groove；48, catch assembly；481, hasp seat；482, hasp frame；483, locking rack；484, it locks
Ring；485, adjusting nut；49, handle；491, grip part；492, folding portion；493, frosted set；410, chain frame；5, grip block；
51, weight loss groove；52, axis is clamped；53, adjustable plate；54, bolt is mounted；55, spring is finely tuned；56, limit plate；57, lock nut；58,
Adjust bolt；59, fixed block；510, movable block；511, rotating block；6, arc detection plate；61, detection probe；62, wearing layer；
63, outlet tube.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: Fig. 1, a kind of flaw detection crawl frame, including active crawling device 2, driven crawling device 3 and connection are referred to
The linkage assemblies 4 of active crawling device 2 and driven crawling device 3.
With reference to Fig. 2, active crawling device 2 includes active frame 21, is equipped with columned drive roll 22 in active frame 21.Actively
Frame 21 is equipped with driving assembly 23, and driving assembly 23 includes motor 231, and the output shaft of motor 231 drives master by bevel gear 232
Moving axis 233, driving shaft 233 by bevel gear 232 drive drive shaft 234 rotate, drive shaft 234 be equipped with driving wheel 235, two
Side is engaged with breast wheel 236, and drive roll 22 is equipped with driven wheel 237, and two driven wheels 237 are driven by breast wheel 236 to be turned in the same direction
It is dynamic.
With reference to Fig. 2, driven crawling device 3 includes being equipped with driven voller 32 from moving frame 31, driven voller 32 is two from moving frame 31
The V-type roll structure that end cross-sectional area is big, intermediate cross-section product is small, at middle part, the arc-shaped concave of formation can be preferable with the outer wall of pipeline 1
It must be bonded.Active frame 21 and be equipped with from moving frame 31 lifting ring 24, for operator pick-and-place.
With reference to Fig. 3, the two sides of active frame 21 are equipped with junction panel 41, are equipped with locking bar 42 and guide rod 43 on junction panel 41,
There is external screw thread on locking bar 42；It is bolted with limit sleeve 421 on locking bar 42, internal axle sleeve 422, outer shaft 423 are arranged on locking bar 42
With fastening spring 424, the shaft shoulder of internal axle sleeve 422 and outer shaft 423 mutually deviates from, and the two is contradicted with biggish contact surface and clamps bullet
Spring 424；Internal axle sleeve 422, outer shaft 423 and fastening spring 424 can directly slide axially along locking bar 42.It is equipped with from moving frame 31
First buckle 44 and the second buckle 45, the first buckle 44 and the second buckle 45 complement each other to form the locked groove 46 being inserted into for locking bar 42
And the guide groove 47 for the insertion of guide rod 43.
When assembling refer to Fig. 4, by the first buckle 44 and with conceal one piece of second buckle 45 in the second buckle 45(figure) phase
To sliping off, it is extended with lining slot 461 on locked groove 46, serves as a contrast slot 461 and is contradicted for the shaft shoulder of internal axle sleeve 422, turn limit sleeve 421, with
Adjust the degree of shrinkage of fastening spring 424.
With reference to Fig. 3 and Fig. 5, catch assembly 48 is equipped between the first buckle 44 and the second buckle 45, catch assembly 48 includes
Hasp seat 481 on the first buckle 44, the hasp frame 482 on the second buckle 45 are rotatably connected on hasp frame 482
Locking rack 483 is rotatably connected to retaining ring 484 on locking rack 483, and retaining ring 484 is open loop structure, and end has screw rod knot
Structure, the screw-rod structure pass through the shaft of retaining ring 484, are bolted with adjusting nut 485 on screw-rod structure.In use, can will adjust
The position of nut 485 is adjusted, to adjust the radius of gyration size of retaining ring 484, that is, adjust retaining ring 484 with
Tautness when hasp seat 481 fastens.
With reference to Fig. 1 and Fig. 6, it is hinged with chain frame 410 on junction panel 41, handle 49, handle 49 are hinged on chain frame 410
It is mutually L-shaped grip part 491 and folding portion 492 including mutually extending, the tie point of grip part 491 and folding portion 492 is hand
The hinge joint of handle 49, folding portion 492 and 42 end of locking bar are formed hingedly, and frosted set 493 is coated on handle 49.Chain frame 410,
Folding portion 492 and locking bar 42 can form three-legged structure, and the position overlapping of three, can maintain a relatively stable state in figure.Upwards
After rotational handle 49, the angle between folding portion 492 and chain frame 410 will be gradually reduced, will be along junction panel with hour locking lever 42
41 glide.
In assembling active frame 21 and before moving frame 31, handle 49 keeps up the state opened, limit sleeve 421 and folder
Farther out, and after being completed, such as Fig. 1, at this time in order to hold pipeline 1 tightly, handle 49 is broken for tight position of the spring 424 apart from active frame 21
It moves to shown position, the relatively upper rotation of limit sleeve 421, push fastening spring 424 is pushed up from moving frame 31, thus from moving frame 31
Driven voller 32 can clamping pipe 1, and be adaptive to the deformation of pipeline 1, receive expansion movement as the deformation of pipeline 1 generates.
With reference to Fig. 3 and Fig. 7, active frame 21 and grip block 5 is equipped with from moving frame 31, hollow out has several subtract on grip block 5
Baking soda 51.Clamping axis 52 is equipped on grip block 5, clamping axis 52 is slidably connected with the holding of grip block 5, and clamping axis 52, which is equipped with, to be adjusted
Plate 53 is saved, a row is equipped on grip block 5 and adjustable plate 53 and mounts bolt 54, on the mounting bolt 54 and adjustable plate 53 on grip block 5
Fine tuning spring 55 is mounted between adjacent mounting bolt 54.The end of two clamping axis 52 is connected with arc detection plate 6, arc inspection
Detection probe 61 there are two being set on drafting board 6, to realize the carrying out flaw detection of pipeline 1.By finely tuning the effect of spring 55, so that two
Arc detection plate 6 is drawn close in opposite directions, to be adaptive to the deformation of pipeline 1, realizes automatic adjustment.In order to increase arc detection plate 6
Wearability, the inner wall of arc detection plate 6 has been connected by screw to wearing layer 62, and the material of wearing layer 62 is rigid plastics, example
Such as PTFE, PC material.
With reference to Fig. 8, in order to limit the sliding stroke of adjustable plate 53, clamping axis 52 is ladder shaft-like structure, is put down on the shaft shoulder
It is equipped with limit plate 56, limit plate 56 is locked after being placed on clamping axis 52 by two lock nuts 57.When pipeline 1 generate it is small
When deformation, two arc detection plates 6 drive adjustable plate 53 sliding along clamping axis 52 backwards to movement, and range is to adjust
It, will be so that fastening spring 424 be compressed (with reference to Fig. 1) if 1 diameter of pipeline continues to expand when the conflict of plate 53 to limit plate 56.
With reference to Fig. 8, it is rotatably connected on grip block 5 and adjusts bolt 58, the screw rod upper semisection for adjusting bolt 58 has screw thread,
Lower semisection does not have screw thread.It adjusts bolt 58 to be threadedly engaged with limit plate 56, turn adjusts bolt 58 can be to the height of limit plate 56
Degree is adjusted, to change the limit sliding stroke of adjustable plate 53 to a certain extent.
With reference to Fig. 8, it is respectively connected with fixed block 59 on two clamping axis 52, connects shaft between two fixed blocks 59, simultaneously
Movable block 510 is equipped between two fixed blocks 59, movable block 510 can be using shaft as axis rotation.Close to living in arc detection plate 6
The two sides of motion block 510 are equipped with rotating block 511, the shaft between two rotating blocks 511 pass through movable block 510 and with movable block 510
Shaft be mutually perpendicular to.There are be greater than (distance at a distance from 15mm between arc detection plate 6 for fixed block 59, movable block 510
Proportion refers to Fig. 9), therefore arc detection plate 6 can be rotated with the shaft between two fixed blocks 59, it also can be with two
Shaft rotation between rotating block 511, two planes of rotation are vertical, and the angle value range that can adaptively rotate is about 15 degree.Thus
Dimension is further increased on the automatic degree of rotation, has reached the better adaptive adjustment capability of arc detection plate 6.
With reference to Fig. 8, arc detection plate 6 is equipped with outlet tube 63, which is passed through for couplant or water, to fill out
Detector gap is filled, the detection accuracy of detection probe 61 is increased.
To sum up, the present embodiment has the function of that five weight self-adapting pipes, 1 shape is adjusted, and realizes the component of each function
Mainly are as follows: fastening spring 424, fine tuning spring 55, movable block 510, rotating block 511, the flexible material on drive roll 2422, from micro-
It is transferred to and adjusts over long distances, adjust from rotational angle to material and adjust, have both various adjustment effects.
Operating procedure:
Active crawling device 2 and driven crawling device 3 are moved to 1 attachment of pipe under test using preceding carrying tool box, further
, active crawling device 2 and driven crawling device 3 is rack-mounted on pipeline 1, utilize the locking bar 42 and first on junction panel 41
Buckle 44 and the second buckle 45 connect two devices, can be adjusted to fastening spring 424 using limit sleeve 421, to hold pipeline tightly
1, finally starting motor 231 can be realized automatic creeping detection.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of flaw detection crawl frame characterized by comprising
Active crawling device (2), including active frame (21), active frame (21) are equipped with drive roll (22), drive drive roll (22)
The driving assembly (23) of rotation；
Driven crawling device (3), including from moving frame (31), driven voller (32) are equipped with from moving frame (31)；
Active frame (21) and the arc detection plate (6) for being bonded pipeline (1), arc detection plate are equipped with from moving frame (31)
(6) several detection probes (61) are equipped with；
For connecting the linkage assemblies (4) of active crawling device (2) and driven crawling device (3), including it is located at active frame (21)
On locking bar (42), be located at from moving frame (31) for being engaged the jam plate of locking bar (42)；Locking bar is bolted with limit sleeve on (42)
(421), it is arranged with for pushing the fastening spring (424) slid from moving frame (31) to active frame (21), clamps on locking bar (42)
Spring (424) is located between jam plate and limit sleeve (421).
2. flaw detection crawl frame according to claim 1, which is characterized in that the active frame (21) is equipped with guide rod
(43), the jam plate includes the first buckle (44) and the second buckle (45), the first buckle (44) and the second buckle (45) phase spell shape
At the guide groove (47) being inserted into for guide rod (43), for the locked groove (46) of locking bar (42) insertion, the first buckle (44) and the second button
Catch assembly (48) are equipped between plate (45).
3. flaw detection crawl frame according to claim 1, which is characterized in that be hinged with chain frame on the active frame (21)
(410), it is hinged with handle (49) on chain frame (410), handle (49) includes extending and being mutually L-shaped grip part with its hinge joint
(491) it is rotatablely connected with folding portion (492), folding portion (492) and locking bar (42).
4. flaw detection crawl frame according to claim 1, which is characterized in that the active frame (21) and from moving frame (31)
Equipped with grip block (5), clamping axis (52) is equipped on grip block (5), clamping axis (52) is equipped with adjustable plate (53), adjustable plate
(53) the fine tuning spring (55) for driving arc detection plate (6) to draw close in opposite directions is equipped between grip block (5).
5. flaw detection crawl frame according to claim 4, which is characterized in that slidably connect limit on the clamping axis (52)
Plate (56), and clamp the shaft shoulder on axis (52) and contradicted for limit plate (56), the end thread of clamping axis (52) is connected with for pressing from both sides
The lock nut (57) of tight limit plate (56).
6. flaw detection crawl frame according to claim 4, which is characterized in that the clamping axis (52) is close to arc detection plate
(6) one end is equipped with fixed block (59), and clamping axis (52) is two, is rotatably connected to movable block between two fixed blocks (59)
(510), movable block (510) drives arc detection plate (6) rotation.
7. flaw detection crawl frame according to claim 5, which is characterized in that the arc detection plate (6) is close to movable block
(510) two sides are equipped with rotating block (511), and the shaft between two rotating blocks (511) passes through movable block (510) and and movable block
(510) shaft is mutually perpendicular to, and rotating block (511) drives arc detection plate (6) rotation.
8. flaw detection crawl frame according to claim 1, which is characterized in that the inside of the arc detection plate (6) is equipped with resistance to
It grinds layer (62), running through in arc detection plate (6) has the outlet tube (63) being passed through for couplant.
9. flaw detection crawl frame according to claim 1, which is characterized in that the driving component (23) include motor (231),
The driving shaft (233) vertical with the length direction of motor (231), active frame (21) is interior to be equipped with the drive vertical with driving shaft (233)
Moving axis (234), motor (231), driving shaft (233) and drive shaft (234) are driven by bevel gear (232)；
Two drive rolls (22) are equipped with driven wheel (237), and drive shaft (234) is equipped with driving wheel (235), driving wheel (235)
Breast wheel (236) are engaged between each driven wheel (237).
10. flaw detection crawl frame according to claim 1, which is characterized in that the drive roll (22) is equipped with flexible material,
Drive roll (22) be it is cylindric, driven voller (32) be V-type roll structure.
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