CN107271571B - A kind of pipeline outside weld detection device - Google Patents
A kind of pipeline outside weld detection device Download PDFInfo
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- CN107271571B CN107271571B CN201710637959.XA CN201710637959A CN107271571B CN 107271571 B CN107271571 B CN 107271571B CN 201710637959 A CN201710637959 A CN 201710637959A CN 107271571 B CN107271571 B CN 107271571B
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- 238000012360 testing method Methods 0.000 description 2
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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
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Abstract
The present invention relates to mechanical engineering detection technical field more particularly to a kind of pipeline outside weld detection devices, including pipeline frame body, travelling mechanism, ultrasonic detection unit and control unit.Pipeline frame body, suitable for being set up in pipeline outside ring, and including adjusting the female bracket component and submounts component that attached components constitute ring structure by a curvature；Travelling mechanism, including the driving assembly being set on the pipeline frame body, and the drive wheel assemblies for being suitable for that the pipeline frame body is driven to move along pipeline outside ring being connect with the driving component；Ultrasonic detection unit, including a supersonic detector, and the ultrasonic probe inductor coupled with the supersonic detector；And control unit, it is suitable for coupling with the supersonic detector, and be electrically connected with the driving component.
Description
Technical field
The present invention relates to mechanical engineering detection technical field more particularly to a kind of pipeline outside weld detection devices.
Background technique
Pipeline transportation is the major way of petroleum, natural gas transportation, currently, the crude oil in China nearly 90%, 100% it is natural
Gas is by pipeline transportation.Pipeline once accident occurs, not only results in huge economic loss, and to society and environment
It will also result in immeasurable harm, the repair of pipeline is not only difficult, but also somewhat expensive.Since the damage of pipeline is main
It concentrates in the damage of weld seam, therefore, for the generation for preventing and reducing pipeline accident, annual oil field pipe check man people can be paid
It the plenty of time and works hard out to detect pipeline-weld.
For the quality for guaranteeing pipeline welding, weld seam detection work is usually carried out after the completion of pipeline is laid with.Outside conventional pipelines
Weld joint ultrasonic detection is mostly detection manually, need manually along pipeline move by way of detect, that is, detect a bit
Afterwards, artificial mobile detection apparatus is detected to next point.This mode is disadvantageous in that artificial movement speed is relatively slow, work
Make that intensity is larger and manual operation factor causes error very big, it is low that this has resulted in pipeline outside weld detection efficiency.Currently,
Automatic ultrasonic testing is the new trend of world's pipe welding line detecting, and realizes pipeline and automatically detect to be solved first
Problem is exactly the design and development of the outer crawling device of pipeline.
Summary of the invention
The object of the present invention is to provide a kind of pipeline outside weld detection devices, to solve to adapt to different size pipelines and energy edge
The outer automatic creeping of pipeline the technical issues of carrying out weld seam detection.
In order to solve the above-mentioned technical problems, the present invention provides technical solutions are as follows: a kind of pipeline outside weld detection device, packet
Pipeline frame body is included, suitable for being set up in pipeline outside ring, and including adjusting female branch that attached components constitute ring structure by a curvature
Frame component and submounts component；
Travelling mechanism including the driving assembly being set on the pipeline frame body, and is connect suitable with the driving component
In the drive wheel assemblies for driving the pipeline frame body to move along pipeline outside ring；
Ultrasonic detection unit, including a supersonic detector, and the ultrasonic wave coupled with the supersonic detector
Probe inductor；And
Control unit is suitable for coupling with the supersonic detector, and is electrically connected with the driving component.
Further, female bracket component includes the preposition female bracket being connected by female connecting rod mirror image and postposition mother's branch
Frame；And
The submounts component includes the preposition submounts and postposition submounts being connected by sub- connecting rod mirror image.
Further, it includes the limit that distribution is set on preposition female bracket and postposition mother's bracket that the curvature, which adjusts component,
Slot and the multiple limit holes being set on the limiting slot, and it is respectively arranged on the preposition submounts and postposition submounts end
The link block being adapted for insertion into the limiting slot, be suitable for and the assembly of the multiple limit hole is used through having on the link block
Bulb locking pin；I.e.
The curvature adjusting of the pipeline frame body of ring structure is realized from different limit hole assembly by bulb locking pin.
Further, preposition female bracket and postposition mother's bracket are respectively equipped between the end of limiting slot and are connected in one
Core；And
The driving component includes the double end stepping electricity being fixedly installed on respectively by a push plate below the central plate
The single head stepper motor of machine and the arranged on left and right sides for being located at double end stepper motor；The double end stepper motor and single head stepping
Motor is electrically connected with described control unit；
The drive wheel assemblies include the longitudinal bidirectional wheel being assemblied on the both ends output shaft of the double end stepper motor respectively,
And it is assemblied in the lateral bidirectional wheel on the output shaft of the single head stepper motor.
Further, the drive wheel assemblies further include being symmetrically disposed on pipeline frame body and pipeline outside ring relative inner wall
One group of fixed bidirectional wheel, and one group of sliding bidirectional wheel being symmetrically disposed on pipeline frame body and pipeline outside ring relative inner wall.
Further, described forward and backward to set female bracket and the forward and backward inner sidewall for setting submounts tail end is symmetrically arranged with isometric cunning
Slot；
One group of sliding bidirectional wheel includes being respectively arranged on forward and backward set in female bracket and the forward and backward sliding slot for setting submounts
Slide bidirectional wheel；And
Described one group fixed bidirectional wheel includes being respectively arranged on forward and backward set on female bracket and the forward and backward inner sidewall for setting submounts
Fixation bidirectional wheel.
Further, the pipeline outside weld detection device further include one be assemblied on the pipeline frame body be suitable for make pipe
The hold-down mechanism that road frame body compresses pipeline；And
The hold-down mechanism includes that a pressure plate, the center hole on pressure plate and mirror image are distributed in center hole
The left and right circular hole of two sides, correspond respectively to center hole and left and right circular hole and connect with the upper surface of the central plate
Heart self-clinching standoff and left and right hollow cylinder, and pass through the center self-clinching standoff and central plate and move hinge with push plate upper surface
The screw thread compressor arm of chain link and across the left and right hollow cylinder and central plate and the left and right compression that is fixedly connected with push plate
Column；And
The top that the screw thread compressor arm is pierced by pressure plate is connected with leader；Between the handle and pressure plate upper surface
It is additionally provided with a baffle.
Further, it is described it is forward and backward set between female bracket be equipped with the first fixed link and it is described it is forward and backward set submounts it
Between be equipped with the second fixed link；And
The supersonic detector is assemblied in the middle part of first fixed link, and the ultrasonic probe inductor is assemblied in institute
It states in the middle part of the second fixed link.
Further, described control unit includes signal projector, signal receiver, and respectively with signal projector and
The connected signal processor of signal receiver；And
The pipeline outside weld detection device further includes a power supply unit for being suitable for powering to control unit and driving assembly.
Further, a connecting plate is connected between preposition female bracket and postposition mother's bracket；
The signal projector, signal receiver and signal processor and power supply unit are assemblied on connecting plate.
The invention has the benefit that controlling driving assembly driving drive wheel assemblies band by control unit by design
The problem of dynamic pipeline frame body can move along pipeline outside ring, avoid artificial movement pipeline frame body, save trouble and labor.Further through use
The ultrasonic probe inductor coupled with supersonic detector, the ultrasonic energy covering that ultrasonic probe inductor is sent is entire
Section of weld joint, detection can be realized stereoscan, and crackle in ultrasonic probe the inductor ultrasonic wave and weld seam that issue, not
Fusion, lack of penetration etc. are substantially vertical, detection sensitivity is high, can improve detection efficiency, simplify detecting step, reduce testing cost.
Again by the curvature regulating mechanism of design, allow pipeline outside weld detection device of the invention according to various sizes of pipeline
Suitability is adjusted, to improve applicability.
Further, multiple bidirectional wheels of design, so that pipeline outside weld detection device install convenient of the invention, and just
It is rotated in around pipeline, to detect the weld seam mouth of pipeline different location, enhances the adaptability and stability of detection device, mention
The high efficiency of detection.
Further, the hold-down mechanism of design enables pipeline outside weld detection device of the invention to be closely attached on pipeline
Outer ring, to improve the sensitivity of detection.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the three-dimensional structure diagram of pipeline outside weld detection device of the invention；
Fig. 2 is the schematic perspective view at another visual angle of pipeline outside weld detection device of the invention；
Fig. 3 is the schematic enlarged-scale view in Fig. 1 at A；
Fig. 4 is the schematic enlarged-scale view in Fig. 1 at B；
Fig. 5 is the schematic enlarged-scale view in Fig. 1 at C；
Fig. 6 is the schematic enlarged-scale view in Fig. 1 at D.
In figure: 1- postposition mother's bracket；The preposition female bracket of 2- postposition submounts, 1a-；The preposition submounts of 2a-；3- notch；4-
Slide bidirectional wheel；The first fixed link of 5a-；The second fixed link of 5b-；6- sliding slot；7- bulb locking pin；8- limiting slot；9- limit hole；
10- connecting plate；11- signal projector；12- signal receiver；13- chargeable lithium battery；14- signal processor；15- ultrasound examination
Device；16- ultrasonic probe inductor；17- spring shaft；18- fixes bidirectional wheel；19- slides two-way wheel carrier；20- fixes bidirectional wheel
Frame；21- handle；22- pressure plate；23- baffle；24- screw thread compressor arm；25- hold-down column；26- central plate；27- self-clinching standoff；
28- hollow cylinder；29- push plate；30- double end stepper motor；31- single head stepper motor；32- transverse direction bidirectional wheel；33- is longitudinally two-way
Wheel；Mother's 34a- connecting rod；The sub- connecting rod of 34b-；35- link block.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below to protect
The scope of the present invention of shield, but it is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
Embodiment 1:
As shown in Figures 1 to 6, the present invention provides a kind of pipeline outside weld detection devices, refering to what is shown in Fig. 1, including pipe
Road frame body, travelling mechanism and ultrasonic detection unit on pipeline frame body, and with control unit.
Pipeline frame body constitutes ring structure suitable for being set up in pipeline outside ring, and including adjusting attached components by a curvature
Female bracket component and submounts component.Pipeline frame body may be designed as full-scale ring structure, but again for convenient disassembly
Detection efficiency is not influenced simultaneously, may be designed to non-full-scale ring structure, i.e., there are a notches 3 in ring structure.Design
Notch 3 make this pipeline frame body when being installed on pipeline outside ring, it is only necessary to by one end of female bracket component and submounts component
Connect, i.e. the opposite other end of mother's bracket component and submounts component is notch 3, is not needed to female bracket component and son branch
The both ends of frame component all carry out the operation that connects, and using more convenient and efficient, while dismantling also more convenient when this pipeline frame body.
Female bracket component includes the preposition mother bracket 1a and postposition mother bracket 1 being connected by female connecting rod 34a mirror image；And
Submounts component includes the preposition submounts 2a and postposition submounts 2 being connected by sub- connecting rod 34b mirror image.Preposition mother's bracket 1a
Identical with postposition mother 1 size of bracket, preposition submounts 2a is identical with postposition submounts 2 also size.
With reference to Fig. 5, it includes the limiting slot that distribution is set on preposition mother bracket 1a and postposition mother bracket 1 that curvature, which adjusts component,
8 and multiple limit holes 9 for being set on limiting slot 8, and it is respectively arranged on the suitable of 2 end preposition submounts 2a and postposition submounts
It is suitable for locking with the bulb that the assembly of multiple limit holes 9 uses in running through to have on the link block 35 being inserted into limiting slot 8, link block 35
Pin 7；The curvature adjusting of the pipeline frame body of ring structure is realized from the different assembly of limit hole 9 by bulb locking pin 7.Specifically
In pipe laying frame body, the link block 35 of preposition submounts 2a is inserted into the limiting slot 8 of preposition female bracket 1a, at the same will after
The link block 35 for setting submounts 2 is inserted into the limiting slot 8 of postposition mother bracket 1, according to the actual size of pipeline, selects the limit of adaptation
Bulb locking pin 7 on link block 35 is inserted into limit hole 9 and completes pipeline frame body and be installed on pipeline outside ring by position hole 9.
With reference to Fig. 4, travelling mechanism including the driving assembly being set on pipeline frame body, and is connect suitable with driving assembly
In the drive wheel assemblies for driving pipeline frame body to move along pipeline outside ring.Preposition mother bracket 1a and postposition mother bracket 1 are respectively equipped with limit
A central plate 26 is connected between the end of position slot 8, driving assembly includes being fixedly installed on central plate by a push plate 29 respectively
The single head stepper motor 31 of one double end stepper motor 30 and the arranged on left and right sides for being located at double end stepper motor 30 of 26 lower sections；
Double end stepper motor 30 and single head stepper motor 31 are electrically connected with control unit；Drive wheel assemblies include being assemblied in double end respectively
Longitudinal bidirectional wheel 33 on the both ends output shaft of stepper motor 30, and the cross being assemblied on the output shaft of single head stepper motor 31
To bidirectional wheel 32.
Longitudinal bidirectional wheel 33 and lateral bidirectional wheel 32 use different step motor controls, when needing movement pipeline outside weld
When detection device makes it make to detect the weld seam of different location along pipeline outside ring axial movement, control two-way stepping motor 30 is driven
Longitudinal bidirectional wheel 33 rotates, and then pipeline frame body is driven integrally to move axially along pipeline outside ring.In moving process, single head stepping
Motor 31 be off working state, when being moved axially in order to avoid pipeline outside weld detection device along pipeline outside ring with single head stepping
Resistance is caused during the connected lateral bidirectional wheel 32 of motor 31 is mobile to pipeline frame body, designing lateral bidirectional wheel 32 is bidirectional wheel, i.e.,
The moving direction of pipeline frame body can be followed to rotate synchronously, to improve the flexibility on the move of pipeline frame body.
When needing movement pipeline outside weld detection device that it is made to make to detect different location along pipeline outside ring radial rotating
When weld seam, control single head stepper motor 31 drives lateral bidirectional wheel 32 to rotate, so drive pipeline frame body it is whole along pipeline outside
Ring moves radially.In moving process, double end stepper motor 30 is off working state, in order to avoid pipeline outside weld detection device edge
Longitudinal bidirectional wheel 33 for being connected when moving radially with double end stepper motor 30 of pipeline outside ring it is mobile to pipeline frame body in cause to hinder
Power, designing longitudinal bidirectional wheel 33 is bidirectional wheel, the moving direction of pipeline frame body can be followed to rotate synchronously, to improve pipeline frame body
Flexibility on the move.
Drive wheel assemblies further include being symmetrically disposed on pipeline frame body and one group of fixation on pipeline outside ring relative inner wall is two-way
Wheel 18, and one group of sliding bidirectional wheel 4 being symmetrically disposed on pipeline frame body and pipeline outside ring relative inner wall.
It is forward and backward to set female bracket and the forward and backward inner sidewall for setting submounts tail end is symmetrically arranged with isometric cunning with reference to Fig. 3 and Fig. 6
Slot 6；One group of sliding bidirectional wheel 4 includes being respectively arranged on the forward and backward sliding set in female bracket and the forward and backward sliding slot 6 for setting submounts pair
To wheel 4.One group of fixed bidirectional wheel 18 includes being respectively arranged on forward and backward to set consolidating on female bracket and the forward and backward inner sidewall for setting submounts
Determine bidirectional wheel 18.Fixed bidirectional wheel 18 is located at the top of sliding bidirectional wheel 4, and fixed bidirectional wheel 18 is assemblied in fixed two-way wheel carrier 20
On, fixed bidirectional wheel 18 is fixed on forward and backward set on female bracket and the forward and backward inner sidewall for setting submounts by spring shaft 17.Sliding
Bidirectional wheel 4 is assemblied on the two-way wheel carrier 19 of sliding, and sliding bidirectional wheel 4 is slidably connected to by spring shaft 17 and forward and backward sets female bracket
In the sliding slot 6 of the forward and backward inner sidewall for setting submounts.
Sliding bidirectional wheel 4 and fixed bidirectional wheel 18 are designed as forward and backward setting female bracket and the forward and backward inner sidewall for setting submounts
On, and sliding bidirectional wheel 4 and fixed bidirectional wheel 18 is all bidirectional wheel, when 32 rotation process of longitudinal bidirectional wheel 33 or lateral bidirectional wheel
In, i.e., when pipeline frame body is laterally or radially migrated along pipeline outside ring, sliding bidirectional wheel 4 and fixed bidirectional wheel 18 can improve pipe
The flexibility and smoothness that road frame body moves integrally.By the sliding bidirectional wheel 4 of design, it is set to and forward and backward sets female 1 He of bracket
On the forward and backward inner sidewall for setting 2 tail end of submounts in symmetrical isometric sliding slot 6, so that when pipeline frame body is along pipeline outside ring diameter
To when migrating, sliding bidirectional wheel 4 is slided along sliding slot 6, has further been pushed pipeline frame body to rotate, has been accelerated velocity of rotation.
Ultrasonic detection unit, including a supersonic detector 15, and the ultrasonic wave coupled with supersonic detector 15
Probe inductor 16.Forward and backward set is equipped with second equipped with the first fixed link 5a and forward and backward set between female bracket between submounts
Fixed link 5b.Supersonic detector 15 is assemblied in the middle part of the first fixed link 5a, and it is solid that ultrasonic probe inductor 16 is assemblied in second
In the middle part of fixed pole 5b, and the mounting means of ultrasonic probe inductor 16 be it is rotatable, ultrasonic probe inductor 16 can be adjusted
Ultrasonic wave incident direction.Wired coupling mode can be used in supersonic detector 15 and ultrasonic probe inductor 16, can also adopt
With wireless coupling mode, the embodiment of the present invention is not limited specifically.
In order to clearly show that weld seam detection as a result, supersonic detector 15 is connected with a waveform oscilloscope, i.e. ultrasonic wave
The display waveform signal output end of detector 15 and the display waveform signal input part of waveform oscilloscope connect.
Control unit is suitable for coupling with supersonic detector 15, and is electrically connected with driving assembly.Control unit includes letter
Number transmitter 11, signal receiver 12, and the signal processor being connected respectively with signal projector 11 and signal receiver 12
14.The signal processor 14 of the present embodiment is using such as, but not limited to STC89C51 single-chip microcontroller.
Pipeline outside weld detection device further includes a power supply unit for being suitable for powering to control unit and driving assembly.Power supply
Rechargeable lithium battary 13, such as, but not limited to poly-lithium battery 13 can be used in unit, and cruising ability is strong.
With reference to Fig. 2, a connecting plate 10 is connected between preposition mother bracket 1a and postposition mother bracket 1；The position that connecting plate 10 designs
Lower than central plate 26, the center of gravity of pipeline outside weld detection device is advantageously reduced, so that pipeline outside weld detection device is being run
It is more stable in the process.Signal projector 11, signal receiver 12 and signal processor 14 and power supply unit can be assemblied in
On connecting plate 10, an entirety is constituted with pipeline frame body, it can also be by signal projector 11, signal receiver 12 and signal processor
14 are integrated in a remote controler, are manipulated by remote control mode to the operation of pipeline outside weld detection device.
In order to improve the sensitivity and accuracy of detection, pipeline outside weld detection device further includes one being assemblied in pipeline frame body
On suitable for the hold-down mechanism that compresses pipeline frame body to pipeline.The hold-down mechanism of design, when pipeline frame body is installed on outside pipeline
After ring, by hold-down mechanism, so that duct frame is shown consideration for together on pipeline outside ring.
With reference to Fig. 4, hold-down mechanism includes that a pressure plate 22, the center hole on pressure plate 22 and mirror image are distributed in
The left and right circular hole of center hole two sides, correspond respectively to center hole and left and right circular hole and connect with the upper surface of central plate 26
The center self-clinching standoff 27 and left and right hollow cylinder 28 connect, and pass through center self-clinching standoff 27 and central plate 26 and and push plate
It moves hinged screw thread compressor arm 24 and passes through left and right hollow cylinder 28 and central plate 26 and fixed with push plate 29 in 29 upper surfaces
The left and right hold-down column 25 of connection.
The top that screw thread compressor arm 24 is pierced by pressure plate 22 is connected with leader 21；Handle 21 and 22 upper surface of pressure plate it
Between be additionally provided with a baffle 23.
Pipeline outside weld detection device specific embodiment of the invention is as follows: pipeline frame body is installed on outside pipeline
Ring, and compressed by hold-down mechanism, so that duct frame is shown consideration for together on pipeline outside ring, ultrasonic probe inductor 16 is set
At steel pipe seam, horizonntlly polarized S waves is sent when supersonic detector 15 controls ultrasonic probe inductor 16, so that horizontal
Polarized shear wave covers entire steel pipe seam, while ultrasonic probe inductor 16 receives reflection signal, and signal is passed through waveform
Display display output, the waveform oscilloscope are shown for showing the letter with weld defect obtained according to reflection signal processing
Breath.Control unit control single head stepper motor 31 drives lateral bidirectional wheel 32 to rotate, and then drives pipeline frame body whole along pipe
Road outer ring moves radially, and in the moving process of pipeline frame body, ultrasonic probe inductor 16 is along the direction of weld seam at the uniform velocity in steel
Pipe outer ring translation, the range of the translation be apart from Weld pipe mill be 10mm-30mm within, realize to weld seam detection.When complete
After detection at a commissure, control unit control double end stepper motor 30 drives longitudinal bidirectional wheel 33 to rotate, and then drives pipe
Road frame body is whole along pipeline outside ring transverse shifting, carries out the detection of next commissure.
When present embodiment carries out ultrasound examination to weld seam, the selection principle of ultrasonic wave incident direction is adjustment ultrasonic wave
Probe 16 direction of inductor makes ultrasonic wave incident direction perpendicular to the direction of weld seam.When conventional weld ultrasound examination, it can only adopt
It is completed to detect with the mode of oblique incidence, and the ultrasonic probe inductor 16 of pipeline outside weld detection device design of the invention
Ultrasonic wave incident direction can be designed perpendicular to the direction of weld seam, especially for the commissure of the relatively thin pipeline of wall thickness, ultrasonic wave
Incident direction enables the acoustic beam on the certain distance apart from weld seam of ultrasonic probe inductor 16 perpendicular to the direction of weld seam
Entire section of weld joint is covered, detection can be realized three-dimensional scanning.And incident acoustic beam and the crackle, incomplete fusion, lack of penetration in weld seam
The defects of it is substantially vertical, can improve detection sensitivity and accuracy.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (7)
1. a kind of pipeline outside weld detection device characterized by comprising
Pipeline frame body, suitable for being set up in pipeline outside ring, and including adjusting the mother that attached components constitute ring structure by a curvature
Bracket component and submounts component；Mother's bracket component includes the preposition female bracket being connected by female connecting rod mirror image and postposition
Female bracket；And the submounts component includes the preposition submounts and postposition submounts being connected by sub- connecting rod mirror image；Institute
Stating curvature and adjusting component includes being distributed the limiting slot being set on preposition female bracket and postposition mother's bracket and being set to the limit
Multiple limit holes on slot, and be respectively arranged on the preposition submounts and postposition submounts end are adapted for insertion into the limit
Link block in slot is suitable for assembling the bulb locking pin used with the multiple limit hole through having on the link block；It is i.e. logical
Cross the curvature adjusting that bulb locking pin realizes the pipeline frame body of ring structure from different limit hole assembly；
Travelling mechanism, including the driving assembly being set on the pipeline frame body, and connect with the driving component suitable for band
Move the drive wheel assemblies that the pipeline frame body is moved along pipeline outside ring；
Ultrasonic detection unit, including a supersonic detector, and the ultrasonic probe coupled with the supersonic detector
Inductor；And
Control unit is suitable for coupling with the supersonic detector, and is electrically connected with the driving component；
Preposition female bracket and postposition mother's bracket are respectively equipped between the end of limiting slot and are connected with a central plate；And
The driving component include respectively by a push plate be fixedly installed on a double end stepper motor below the central plate and
It is located at the single head stepper motor of the arranged on left and right sides of double end stepper motor；The double end stepper motor and single head stepper motor
It is electrically connected with described control unit；
The drive wheel assemblies include the longitudinal bidirectional wheel being assemblied on the both ends output shaft of the double end stepper motor respectively, and
The lateral bidirectional wheel being assemblied on the output shaft of the single head stepper motor.
2. pipeline outside weld detection device according to claim 1, which is characterized in that the drive wheel assemblies further include symmetrical
One group of fixed bidirectional wheel being set on pipeline frame body and pipeline outside ring relative inner wall, and be symmetrically disposed on pipeline frame body and
One group of sliding bidirectional wheel on pipeline outside ring relative inner wall.
3. pipeline outside weld detection device according to claim 2, which is characterized in that it is described it is forward and backward set female bracket and before,
The inner sidewall of postposition submounts tail end is symmetrically arranged with isometric sliding slot；
One group of sliding bidirectional wheel includes being respectively arranged on the forward and backward sliding set in female bracket and the forward and backward sliding slot for setting submounts
Bidirectional wheel；And
Described one group fixed bidirectional wheel includes being respectively arranged on forward and backward to set consolidating on female bracket and the forward and backward inner sidewall for setting submounts
Determine bidirectional wheel.
4. pipeline outside weld detection device according to claim 1, which is characterized in that the pipeline outside weld detection device
Further include one be assemblied on the pipeline frame body suitable for the hold-down mechanism that compresses pipeline frame body to pipeline；And
The hold-down mechanism includes that a pressure plate, the center hole on pressure plate and mirror image are distributed in center hole two sides
Left and right circular hole, correspond respectively to center hole and left and right circular hole and the center pressure that is connect with the upper surface of the central plate
Riveted screw pole and left and right hollow cylinder, and pass through the center self-clinching standoff and central plate and move hinge with push plate upper surface and connect
The screw thread compressor arm that connects and across the left and right hollow cylinder and central plate and the left and right hold-down column that is fixedly connected with push plate；With
And
The top that the screw thread compressor arm is pierced by pressure plate is connected with leader；It is also set between the handle and pressure plate upper surface
There is a baffle.
5. pipeline outside weld detection device according to claim 1, which is characterized in that described forward and backward to set between female bracket
The second fixed link is equipped between submounts equipped with the first fixed link and forward and backward set；And
The supersonic detector is assemblied in the middle part of first fixed link, and the ultrasonic probe inductor is assemblied in described the
In the middle part of two fixed links.
6. pipeline outside weld detection device according to claim 1, which is characterized in that described control unit includes signal hair
Emitter, signal receiver, and the signal processor being connected respectively with signal projector and signal receiver；And
The pipeline outside weld detection device further includes a power supply unit for being suitable for powering to control unit and driving assembly.
7. pipeline outside weld detection device according to claim 6, which is characterized in that preposition female bracket and postposition are female
A connecting plate is connected between bracket；
The signal projector, signal receiver and signal processor and power supply unit are assemblied on connecting plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710637959.XA CN107271571B (en) | 2017-07-31 | 2017-07-31 | A kind of pipeline outside weld detection device |
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|---|---|---|---|
| CN201710637959.XA CN107271571B (en) | 2017-07-31 | 2017-07-31 | A kind of pipeline outside weld detection device |
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| CN107271571A CN107271571A (en) | 2017-10-20 |
| CN107271571B true CN107271571B (en) | 2019-08-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407909A (en) * | 2018-02-11 | 2018-08-17 | 常州轻工职业技术学院 | It detects a flaw outside pipeline walking robot |
| CN108593555A (en) * | 2018-07-04 | 2018-09-28 | 河南农业大学 | Multichannel absorption spectrum monitor station and detecting system |
| CN109129505B (en) * | 2018-09-07 | 2020-07-28 | 西安交通大学 | Folded form GIS intracavity overhauls robot |
| CN109164172B (en) * | 2018-09-29 | 2023-07-18 | 广西路桥工程集团有限公司 | Steel pipe concrete ultrasonic detection support |
| CN109483568B (en) * | 2018-11-21 | 2022-02-11 | 南通理工学院 | Automatic flaw detection, carbon planing and welding robot for outer wall of pipeline |
| CN111289622B (en) * | 2020-03-10 | 2023-05-12 | 淮阴师范学院 | Boiler pipeline ultrasonic detection device |
| CN111623225B (en) * | 2020-06-09 | 2022-10-28 | 杭州惠威无损探伤设备有限公司 | Novel pipeline nondestructive inspection device |
| CN113092582B (en) * | 2021-03-19 | 2024-07-02 | 河南黄科工程技术检测有限公司 | Nondestructive testing device and nondestructive testing method for steel structure |
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| GB2088554A (en) * | 1980-11-28 | 1982-06-09 | Pls Pipeline Service Uk Ltd | Pipeline route surveying device |
| CN103867848A (en) * | 2012-12-14 | 2014-06-18 | 许雪梅 | Spiral driving pipeline robot |
| CN106594455A (en) * | 2016-12-20 | 2017-04-26 | 中国石油大学(北京) | Double-claw type obstacle-crossing direction-adaptive pipeline external detection robot |
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| GB2088554A (en) * | 1980-11-28 | 1982-06-09 | Pls Pipeline Service Uk Ltd | Pipeline route surveying device |
| CN103867848A (en) * | 2012-12-14 | 2014-06-18 | 许雪梅 | Spiral driving pipeline robot |
| CN106594455A (en) * | 2016-12-20 | 2017-04-26 | 中国石油大学(北京) | Double-claw type obstacle-crossing direction-adaptive pipeline external detection robot |
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