CN108802186A - A kind of ultrasonic type Ndt Methods For Steel Tubes - Google Patents

A kind of ultrasonic type Ndt Methods For Steel Tubes Download PDF

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Publication number
CN108802186A
CN108802186A CN201810764039.9A CN201810764039A CN108802186A CN 108802186 A CN108802186 A CN 108802186A CN 201810764039 A CN201810764039 A CN 201810764039A CN 108802186 A CN108802186 A CN 108802186A
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China
Prior art keywords
steel pipe
detection
translation
advance
advancing roller
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Granted
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CN201810764039.9A
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CN108802186B (en
Inventor
吴建军
赵伟
周红波
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Baowu Teye Hangyan Technology Co.,Ltd.
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Chongqing Iron and Steel Group Co Ltd
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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
    • 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
    • G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
    • 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
    • G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/9026—Arrangements for scanning by moving the 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
    • G01N2291/0234—Metals, e.g. steel
    • 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

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention discloses a kind of ultrasonic type Ndt Methods For Steel Tubes, it is characterized in that, the detection liquid that will realize ultrasonic examination, makes it return again to cycle after heating and flows into detection case, so that detection liquid temperature increases in detection case, so that expansion is overflowed after bubble can heat in detection liquid.The present invention has the advantages that carrying out flaw detection effect and reliability can be improved.

Description

A kind of ultrasonic type Ndt Methods For Steel Tubes
Technical field
The present invention relates to a kind of steel tube surface defect detection equipments；More particularly to a kind of ultrasonic type steel tube flaw detection side Method.
Background technology
Steel pipe is a kind of widely applied important steel material, since various factors influences during steel pipe's production, The defects of longitudinal crack, transversal crack, folding, layering are commonly present in steel pipe walls.It will be during use if steel pipe is defective Rupture causes accident, or even causes serious consequence, may cause heavy economic losses even casualties, thus important use Steel pipe is required for perfect non-destructive detecting device, and line flaw detection is carried out to steel pipe.To ensure the quality of manufacture steel pipe, existing spy Hindering mode mainly has ultrasonic examination and the eddy current inspection method of inspection.Existing steel tube flaw detection line, often by ultrasonic inspection and whirlpool Stream flaw detection is used as individual operating system, but with the raising that present Tube heating furnace requires, and often needs to complete it two kinds of detections, At this moment it just needs operating personnel by the steel pipe blanking after the completion of passing through a kind of flaw detection, then is transferred to lower road carrying out flaw detection, there are work Repetition, labor intensity are big, examine the disadvantage that the cycle of operation is long, inefficient, become restrict steel tube flaw detection detection speed one Factor.
In existing steel tube flaw detection equipment, either import equipment or home equipment, natural pipe through roll forming it Afterwards, flaw detection link can just be entered.It transported since rolled steel tube surface inevitably exists, place improper and itself stress Secular distortion or external factor influence etc., these factors can cause to deform again before steel tube flaw detection, such as locate not in time Reason, the steel pipe of deformation can be because of straightness or surface quality is bad that flaw detection effect is had an impact, it cannot be guaranteed that the stabilization of flaw detection Property.If clearing up not in time, it can make a big impact to flaw detection, generate serious interference during flaw detection, or even will produce mistake The case where report is even failed to report.
Meanwhile ultrasonic automatic flaw detection apparatus, especially in the flaw detection industry neck of the steel pipe part using ultrasound detection Domain has a wide range of applications, such as the automatic flaw detection device etc. for steel pipe part.The existing online ultrasonic inspection of steel pipe, generally Line flaw detection is carried out using the method for probe moisture film coupling.When carrying out free of Automatic Ultrasonic Flaw Detector to steel pipe, will usually it visit At a certain distance from head is attached to outer surface of steel tube with certain mechanical mechanism, make probe by adjusting the regulating system on probe holder There are certain gaps between steel pipe, and water-filling forms coupling moisture film, detects a flaw by ultrasound emission.In practical automatic spy During wound, since steel pipe is in the transmission process of detection, the probe of existing ultrasonic automatic flaw detection apparatus is typically direct It is fixed on probe bracket, and probe bracket is fixedly connected with flaw detection water tank, because steel pipe model is more, probe fixation is set It sets, cannot be satisfied the flaw detection demand of various different model steel pipes.Simultaneously during steel tube flaw detection, encounters the position of the default in the steel pipe and pass through When, it is easy and probe touching leads to the vibration of probe and stick up to turn, to cause the variation of flaw indication amplitude, if cannot be timely It adjusts, can also influence the reliability and accuracy of flaw detection.For eddy current inspection, there is also identical problems.
Invention content
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to：How providing one kind can carry The ultrasonic type Ndt Methods For Steel Tubes of high carrying out flaw detection effect and reliability.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：
A kind of ultrasonic type Ndt Methods For Steel Tubes, which is characterized in that will realize the detection liquid of ultrasonic examination, make it by heating After return again to cycle flow into detection case in so that in detection case detect liquid temperature increase so that detection liquid in bubble can It expands and overflows after heating.
Therefore the micro-bubble in detection liquid can be eliminated well in this way, it greatly avoids depositing in the detection liquid in detection case And generate micro-bubble and influence detection result.It is rotary advance further to combine steel pipe, can rely on the rotation of steel pipe Turn that the bubble of steel tube surface is avoided to adhere to, therefore greatly improves flaw detection accuracy.
The claimed above-mentioned technical proposal of the application and its effect, in a kind of claimed following steel pipe of parent application It is disclosed in the scheme of surface defects detection flaw detection portion structure.
A kind of steel tube surface defects detection flaw detection portion structure includes the steel pipe biography for driving steel pipe to move in the axial direction Dynamic device and the steel pipe defectoscope being arranged on steel pipe motion path；It is characterized in that, the steel pipe defectoscope includes inspection Measuring tank, detection case is along respectively having opened up a through-hole on the side plate of the front and back side of steel pipe direction of advance, the side plate of side before and after detection case On a set of flaw detection mechanism is respectively installed, there is the flaw detection being located inside a detection case probe, flaw detection to pop one's head in for flaw detection mechanism It is fixed on the lower end of a vertically arranged adjusting rod, adjusting rod upper end is mounted on detection case side plate, two mechanisms of detecting a flaw Probe is located at the both sides of steel pipe progress path and the setting of face steel pipe progress path.
In this way, in steel pipe defectoscope, using the first from left right side, respectively setting one is popped one's head in, and is fixed and steel pipe advance using probe Mode detect a flaw, simpler structure can be leaned on to realize the full surface inspection to steel pipe well, flaw detection efficiency is improved, keep away Exempt from missing inspection, improves test reliability.Further, steel pipe transmission device coordinates again in this way for driving steel pipe spirally to advance The mode that steel pipe is threadingly advanced can preferably improve flaw detection area, improve flaw detection efficiency.
Further, steel pipe defectoscope is a steel pipe defectoscope spaced apart two along steel pipe direction of advance In probe be ultrasonic detecting probe and to form ultrasonic type steel pipe defectoscope, the probe in another steel pipe defectoscope For eddy current probe；It is arranged in the steel pipe defectoscope of ultrasonic detecting probe, is equipped with and is used for and steel in detection case through-hole Pipe cooperatively forms the flexible sliding sleeve of dynamic sealing, detects a flaw filled with detection liquid realization ultrasonic water embrane method in the detection case, the detection case Lower end is set in a detection liquid returnable.
In this way, combining EDDY CURRENT to detect a flaw using the flaw detection of ultrasonic water embrane method, two kinds of flaw detection modes are combined, more It is effectively prevented from missing inspection, further increases flaw detection accuracy and reliability.Further, the inner ring wall of flexible sliding sleeve has a circle Lip made from flexiplast, lip is used for and dynamic sealing is realized in steel tube surface contact.
Further, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, glass is additionally provided on the side of detection case Glass observation window；Observation detection liquid liquid level position can be facilitated.Still further, vertical graduation mark is set on glass window, Height and position is to ensure flaw detection effect where liquid level can conveniently be accurately acquired.
Further, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, input duct is provided with above detection case, Heating vessel is provided with above input duct, heating vessel passes through water pump and reflux line and detection liquid returnable It is connected.
In this manner it is achieved that the recycling of detection liquid.Simultaneously importantly, may be implemented one based on the structure Kind ultrasonic wave Ndt Methods For Steel Tubes, i.e., will realize the detection liquid of ultrasonic examination, so that it is returned again to cycle after heating and flows into In detection case so that detect liquid temperature in detection case and increase, so that bubble expands spilling after capable of heating in detection liquid.Therefore The micro-bubble in detection liquid can be eliminated well in this way, greatly avoid existing and generating micro- in the detection liquid in detection case Minute bubbles and influence detection result.It is rotary advance further to combine steel pipe, the rotation of steel pipe can be relied on to avoid steel pipe The bubble on surface adheres to, therefore greatly improves flaw detection accuracy.
Further, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, at the upper side of detection case there are one settings Overflow launder, overflow channel side and detection box cavity connect, and the input duct lower end is arranged in overflow launder.In this way, can be with It by overflow channel, preferably avoids the liquid fluctuating in detection case and preferably avoids the generation of bubble, to ensure more Good detection result.
As an optimization, probe regulating device is additionally provided on detection case side plate, probe regulating device includes that a translation is adjusted Save mechanism, the translation adjustment mechanism includes a hanging plate that is vertically arranged and being fixed on above detection case side plate, on hanging plate in Side, which is vertically bonded, is provided with translation substrate, and tool is there are one outside translation protrusion and by being translatable with convex on the outside of the substrate that is translatable It rises and limits cooperation horizontally slidablely in a horizontal sliding slot on hanging plate, translation adjustment mechanism further includes that a translation is adjusted Screw rod is saved, vertical plane where translation adjusting screw rod is parallel to corresponding side plate and horizontally disposed, translation adjusting screw rod inner end screw thread It is screwed in the upper horizontally disposed screw hole of translation protrusion, translation adjusting screw rod outer end is rotationally pierced by hanging plate and handle is arranged Hand, be translatable the position limiting structure having between adjusting screw rod and hanging plate for limiting translation adjusting screw rod axial movement（It should when implementation Position limiting structure can be that the boss that a circle is set up in adjusting screw rod week along translation and respective slot obtain）；Pacify adjusting rod upper end On translation substrate.
In this way, the handle of rotary translational movement adjusting screw rod outer end can be relied on, realize that the translation to the substrate that is translatable is adjusted, in turn By adjusting rod drive probe in the horizontal direction close to or far from steel pipe, preferably to adjust the detection range of probe to ensure Accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.With simple in structure, stabilization easy to adjust can By the characteristics of.
It is further translatable between substrate and hanging plate and is additionally provided with locking mechanism, locking mechanism includes being located at outside translation substrate The dovetail groove in the horizontal direction that side is recessed, hanging plate medial surface correspond to dovetail groove and are equipped with swallow horizontally slidablely Tail shape protrusion, locking mechanism further include vertically arranged locking bolt, and locking bolt vertically runs through from translation substrate upper end face Translation substrate is simultaneously connected to realization abutting locking in swallow-tail form protrusion.In this way, horizontal between translation substrate and hanging plate can adjust It realizes and is locked after section.
Further, hanging plate lower inside surface and corresponding side plate upper outside face are affixed setting, hanging plate lower part edge perpendicular to Side plate direction is provided with positioning screw hole, and one section is provided with using positioning screw hole as the arc positioning hole in the center of circle, arc above positioning screw hole Shape location hole is provided with bolt with respective grafting in positioning screw hole and realizes that side plate is fixedly connected with hanging plate across side plate.
In this way, hanging plate is realized using simple structure and corresponds to being fixedly connected for side plate, while the connection structure may be used also Vertical deflection adjusting is carried out to hanging plate to facilitate using positioning screw hole as the center of circle, and then may be implemented to the probe of adjusting rod lower end Vertical deflection is adjusted, and ensures accuracy of detection preferably to adjust the detection range of probe, and can also be big according to steel pipe model Small realization test position is adjusted.
Further, vertical coarse adjustment mechanism is additionally provided on the inside of translation substrate, the vertical coarse adjustment mechanism includes along translation One vertical coarse adjustment substrate of substrate medial surface fitting setting, vertical coarse adjustment substrate outside（Orientation is described with foreign side in detection case Basis is described to for interior exterior orientation）There are one slide vertically with raised and slid vertically by this and can slide vertically ground with protrusion for setting In a vertical sliding slot on translation substrate, vertical coarse adjustment mechanism further includes a vertical coarse adjustment screw rod, is erected for limit cooperation It is screwed in and is slid vertically in the upper vertically arranged screw hole of protrusion to coarse adjustment screw rod lower thread, vertical coarse adjustment screw rod upper end can turn It is pierced by translation upper surface of base plate dynamicly and handle is set, is additionally provided between vertical coarse adjustment screw rod and translation substrate perpendicular for limiting The position limiting structure moved axially to coarse adjustment screw rod（The position limiting structure can be that a circle is vertically set in coarse adjustment screw rod circumferential direction when implementation The boss and respective slot set obtain）；Adjusting rod upper end is mounted on vertical coarse adjustment substrate.
In this way, the handle for rotating vertical coarse adjustment screw rod upper end can be relied on, and then realize to the first of adjusting rod upper and lower position Successive step, and then drive probe vertically close or separate steel pipe by adjusting rod, preferably to adjust the inspection of probe Range is surveyed to ensure accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.With simple in structure, tune Section facilitates reliable and stable feature.
Further, vertical fine-tuning mechanism is additionally provided on vertical coarse adjustment substrate, vertical fine-tuning mechanism includes one vertical The vertical accurate adjustment screw rod being arranged, vertical accurate adjustment screw rod top are installed in rotation on what vertical coarse adjustment substrate side laterally extended In one installation protrusion, vertical accurate adjustment screw rod upper end stretches out installation protrusion and is provided with handle, vertical accurate adjustment screw rod and installation protrusion Between be additionally provided with the position limiting structure being axially moveable for limiting vertical accurate adjustment screw rod, vertical accurate adjustment screw rod lower thread cooperation In a horizontally disposed vertical accurate adjustment nut, vertical accurate adjustment nut is arranged mounted on a horizontally disposed limit guide sleeve Interior, limit guide sleeve is mounted on vertical coarse adjustment substrate, is limited to have between guide sleeve inner wall and vertical accurate adjustment nut peripheral outer wall and be erected To the concave-convex fit structure of setting to limit circumferentially rotating for vertical accurate adjustment nut, vertical accurate adjustment nut lower end is fixedly installed downwards The adjusting rod.
In this way, the handle for rotating vertical accurate adjustment screw rod upper end can be relied on, and then realize the essence to adjusting rod upper and lower position Really adjustment makes its first coarse adjustment accurate adjustment again, can more accurately adjust the detection range for determining probe to ensure accuracy of detection, and It can also realize that test position is adjusted according to steel pipe model size.With simple in structure, reliable and stable feature easy to adjust.
Further, horizontal deflection regulating mechanism, the horizontal deflection regulating mechanism are additionally provided on vertical coarse adjustment substrate Including the limit guide sleeve, limit guide sleeve outer surface is provided with wrom tooth and forms worm gear, and worm gear, which is mounted on, is fixed on vertical coarse adjustment base In a worm seat on plate, a horizontally disposed worm screw is also equipped on worm seat, worm and worm wheel engage for self-locking shape, Worm screw one end stretches out worm seat and is equipped with handle.
In this way, the handle of rotary worm outer end can be relied on, the horizontal rotation of adjusting rod is moved by Worm Wheel System subband, And then probe is driven to realize the adjustment of horizontal deflection position, the detection range for determining probe can be more accurately adjusted to ensure Accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.Meanwhile the clever structure by worm and gear Transmission and leadscrew-nut mechanism are combined together, and are realized to nut in leadscrew-nut mechanism by the self-locking function of worm and gear Rotation limit；Therefore simple structure is relied on to realize the function that adjusting rod up and down motion is adjusted and rotation is adjusted simultaneously.Have It is simple in structure, reliable and stable feature easy to adjust.
As an optimization, steel pipe transmission device includes the steel pipe advancement mechanism for driving steel pipe to advance along axis, further includes Steel pipe rotary mechanism for driving steel pipe to be rotated centered on axial line.
In this way, steel pipe by rotate it is forward in a manner of so that the inspected area bigger popped one's head in steel pipe defectoscope, Ke Yiyi The flaw detection in steel pipe circumferential direction is realized by fixed probe, is preferably avoided missing inspection, is enhanced the reliability and stability of flaw detection, make Obtaining can rely on less probe to realize better flaw detection effect.
As an optimization, steel pipe advancement mechanism includes a pair of of advancing roller, and advancing roller peripheral surface is provided with rubbing for concave arc Slot is wiped, the frictional groove of advancing roller peripheral surface, which faces, to be arranged and in the inner, two advancing rollers respectively to lead to by steel pipe sandwiched It crosses a set of advance roller transmission mechanism and the same steel pipe advance is sequentially connected with motor, steel pipe advance is with motor for driving two Advancing roller relative rotation is to drive steel pipe to move ahead.
In this way, steel pipe drives realization to advance by the advancing roller of a pair of synchronous relative rotation, it is reliable to ensure that steel pipe advances, and It avoids force imbalance from leading to pipe deformation to influence subsequently to detect a flaw, better ensures that flaw detection effect.
As an optimization, steel pipe advancement mechanism further includes the advancing roller mounting bracket of a rectangular frame structure, advancing roller installation Two spaced advance roll shafts arranged side by side are rotatably mounted in frame inner cavity, plane is perpendicular to steel where two advance roll shafts Pipe motion path, advancing roller are mounted on advance roll shaft, and advance roller transmission mechanism includes the advance roll shaft, further includes and advances Roll shaft spaced jackshaft side by side, jackshaft are installed in rotation on advancing roller mounting bracket and have that there are one stretch out to advance The power intake of roller mounting bracket, respectively the power intake of jackshaft stretches out in advancing roller peace in two sets of advance roller transmission mechanisms The not ipsilateral shelved, jackshaft are located at the part in advancing roller mounting bracket and are passed by an external gear wheel and corresponding advance roll shaft It is dynamic to connect, worm gear is installed on the power intake that jackshaft is located at outside advancing roller mounting bracket, worm gear and one are parallel to steel pipe The worm screw engagement in advancing roller mounting bracket lateral surface, each leisure of worm screw of two sets of advance roller transmission mechanisms is arranged in motion path direction One end of the same direction is provided with gear and a power input gear engagement, and the power input gear is moved perpendicular to steel pipe Path is arranged and is installed in rotation on advancing roller mounting bracket outer end face, and the advancing roller mounting bracket is along steel pipe motion path side To rear and front end end face and power input gear in the middle part of there are for steel pipe by space, one end of power input gear It is sequentially connected with motor with steel pipe advance.
The steel pipe advancement mechanism in this way can rely on the same steel pipe to advance opposite with electronic while two advancing rollers of drive The transmission of steel pipe is better achieved in synchronous rotary.Steel pipe advancement mechanism itself has simple in structure simultaneously, and layout is ingenious compact, The advantages that reliable transmission.Further, one end of power input gear is sequentially connected by belt and steel pipe advance with motor, this Spline structure is simple and reliable transmission, and further, steel pipe advance electricity consumption machine is located on the bottom plate below advancing roller mounting bracket, in this way It is simple in structure and installation and power is facilitated to transmit.
As an optimization, tube fraction power adjustment mechanism, the tube fraction power adjustment are additionally provided in steel pipe advancement mechanism Mechanism includes spaced a pair of of lever drive plate arranged side by side, and plane where lever drive plate is parallel with steel pipe direction of advance, thick stick Bar driver plate is installed in rotation on jackshaft described in same root, and lever drive plate is located at the peace of one end in advancing roller mounting bracket Equipped with an advance roll shaft and adjusting advance roll shaft is constituted, is laterally fixedly connected between two lever drive plate rear ends One piece of adjustable plate, adjustable plate upper edge steel pipe direction of advance are arranged the adjustment hole there are one bar shaped, one are vertically installed in adjustment hole Root adjusting bolt, adjusting bolt one end are fixed on advancing roller mounting bracket, and the upper and lower surface that adjusting bolt is located at adjustable plate is respectively revolved It is connected to a location nut.
In this way, the position for adjusting adjustable plate in adjusting bolt can be relied on, and then by the rotation band of lever drive plate Compression of the adjusting with the advancing roller realization on advance roll shaft to steel pipe is moved, and then realizes the tune to tube fraction power size It saves, adjusting position is transferred to by advancing roller mounting bracket external position, more convenient adjusting behaviour using lever drive plate in the structure Make and laborsaving, while lever drive plate makes not influencing advance roller transmission mechanism in its adjustment process using jackshaft as axis of rotation Drive mechanism；Therefore have many advantages, such as simple in structure, it adjusts reliable convenient and efficient laborsaving.Meanwhile the structure can also facilitate tune Whole realize is driven the compression of different size model steel pipe.
As an optimization, the steel pipe rotary mechanism includes main transmission babinet, and main transmission babinet is along steel pipe progress path direction Rear and front end rotatably arranged with there is guide sleeve, hollow spindle is fixedly connected between guide sleeve, in the guide sleeve and hollow spindle Chamber constitutes steel pipe progress path, and the rear and front end of the advancing roller mounting bracket is fixed on hollow spindle, on hollow spindle It is further fixedly arranged on rotation output wheel, output wheel is rotated and steel pipe rotary is sequentially connected with motor.
In this way, steel pipe rotary motor can be relied on to drive hollow spindle rotation by belt pulley, and then before drive entirely It is rotated into roller mounting bracket so that steel pipe is driven while being driven advance to be rotated.Therefore the steel pipe rotary mechanism being capable of band Moving ahead for steel pipe is not interfered with while dynamic steel pipe rotary, and there is the advantages that simple in structure, reliable transmission, rotation output is stablized.
Further, the rotation output wheel is belt pulley and is connected by belt mechanism and steel pipe rotary motor drive It connects；Keep its simple in structure, it is of low cost, be conducive to implement and it is of low cost.Still further, the steel pipe rotary is arranged with motor It is set up in parallel with motor below main transmission babinet and with steel pipe advance, keeps its compact-sized, easy for installation, reliable transmission.
In conclusion the present invention have it is simple in structure, can improve flaw detection area and flaw detection efficiency, avoid missing inspection, improve The advantages of test reliability.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the steel tube surface defect detecting system that can implement the method for the present invention.Steel in figure Pipe feed straightening device part is to adjust side plate to split state to show internal structure.
Fig. 2 is the vertical view of the steel pipe feed straightening device in Fig. 1.
Fig. 3 is the structural schematic diagram of straightening roll regulating mechanism in Fig. 2.
Fig. 4 is the attachment structure schematic diagram of benchmark straightening roll and benchmark side plate in Fig. 2,（A benchmark is only shown in figure Use straightening roll）.
Fig. 5 is the dimensional structure diagram of steel pipe transmission device in Fig. 1,（Location nut is omitted in figure and adjusts spiral shell Bolt）.
Fig. 6 is that Fig. 5 rotates the view after an angle.
Fig. 7 is the front view of steel pipe defectoscope in Fig. 1,（Bolt is omitted in figure）.
Fig. 8 is the structural schematic diagram rotated Fig. 7 after one angle.
Fig. 9 is that Fig. 7 is rotated to the structural schematic diagram after another angle.
Figure 10 is the vertical cross-sectional of steel pipe defectoscope.
Specific implementation mode
With reference to using a kind of steel tube surface defect detecting system and its attached drawing that can implement the method for the present invention to this Invention is described in further detail.
When specific implementation：As shown in Figures 1 to 10.
A kind of steel tube surface defect detecting system, including bottom plate are provided with for driving steel pipe in the axial direction on bottom plate The steel pipe transmission device 1 of movement and the steel pipe defectoscope 2 being arranged on steel pipe motion path, further include being arranged on bottom plate Steel pipe feed straightening device 3, steel pipe feed straightening device 3 are set to steel pipe transmission device feed end and rectifying for realizing steel pipe Directly.
It detects a flaw, can preferably avoid, steel pipe is led because of self-deformation in this way, being fed again after first being aligned to steel pipe Straightness or the bad influence generated for flaw detection effect of surface quality are caused, the accuracy and reliability of flaw detection is improved.
Wherein, steel pipe feed straightening device 3 includes the straightening roll 4 being arranged in pairs, and 4 peripheral surface of straightening roll is middle part indent Arc, two straightening rolls 4 are arranged in the left and right directions both sides of steel pipe motion path, and two straightening rolls 4 in each pair of straightening roll 4 Axial line misplace and be obliquely installed up and down along the steel pipe direction of motion so that two straightening rolls 4 are respectively and steel tube surface formation two Symmetrical helix contact.
In this way, forming two symmetrical helix contacts with straightening roll during steel pipe advances and realizing aligning, therefore only need one Aligning on one segment length direction of steel pipe can be realized to straightening roll, and stress balance, simple in structure and leveling effect are good.More preferably Selection be that straightening roll and steel tube surface contact the every helix to be formed and rotate up 180 degree range in steel tube surface week；This The helix of sample a pair of straightening roll is upwardly formed 360 encirclements in steel pipe entire week just, it is ensured that steel tube surface is in the circumferential by equal The straightening force of weighing apparatus, outer wall of steel pipe is by the straightening roll of both sides while to steel pipe center position rolling extrusion, by the pipe of surface irregularity Wall flattens, and ensures to can also ensure that the rounding off effect in circumferential direction while the leveling effect on steel pipe whole length direction, make It is aligned and rounding off effect reaches best, improve tube bending situation and surface defect, and then is better ensured that and subsequently detected a flaw Reliability.
Wherein, steel pipe feed straightening device 3 includes one piece of base being vertically oppositely arranged at left and right sides of steel pipe motion path Quasi- side plate 5 and one block of adjusting side plate 6, benchmark side plate 5 and adjusting side plate 6 are arranged and are mutually parallel along steel pipe motion path direction； 5 medial surface of benchmark side plate is fixedly installed along steel pipe motion path direction on a row straightening roll bottom plate 7 and the row straightening roll bottom plate 7 The straightening roll of installation forms benchmark straightening roll, adjusts 6 medial surface of side plate and benchmark and straightening roll face is provided with row aligning Straightening roll regulating mechanism is respectively arranged on roller bottom plate 7 and the row straightening roll bottom plate 7, before straightening roll regulating mechanism face steel pipe End is provided with straightening roll 4 and forms adjusting straightening roll, and benchmark straightening roll and adjusting are arranged in pairs and are used for one by one with straightening roll Realize and the compression of steel pipe aligned, straightening roll regulating mechanism for changing adjusting straightening roll and steel pipe distance.
In this way, by straightening roll regulating mechanism, it can be with each pair of straightening roll of Primary regulation to the compression straightening force of steel pipe so that Compression straightening force is incremented by successively along steel pipe direction of advance, and steel pipe progressively repeatedly carries out extruding aligning in feed straightening device, Final leveling effect is improved, and then better ensures that the reliability subsequently detected a flaw.The benchmark straightening roll of steel pipe side simultaneously, can It using the positioning datum as adjusting, better ensures that steel pipe center line is consistent with motion path, ensures steel pipe finally after aligning Straightness.Better choice is the contact of benchmark straightening roll and steel pipe, is passed successively from small to large along the steel pipe direction of motion It adds and sets.It can better ensure that each pair of straightening roll compresses straightening force and is adjusted to after the steel pipe direction of motion is sequentially increased in this way, Its steel pipe center line is still consistent with motion path；Better ensure that leveling effect.
Wherein, benchmark is corresponded on the benchmark side plate 5, and straightening roll is provided with intermeshing active oblique gear 8 and passive Helical gear 9, the steel pipe advance in the active oblique gear 8 and steel pipe transmission device 1 are sequentially connected with motor, the passive helical teeth Wheel 9 and benchmark are fixedly and coaxially connected with straightening roll.
In this way, benchmark straightening roll is by steel pipe transmission device, for driving the motor of steel pipe advance, active rotation is applied again Power actively exerts a force to steel pipe, can better ensure that steel pipe leveling effect in steel pipe.Using benchmark straightening roll and motor phase Even, it is ensured that the stability and reliability of transmission.
Wherein, steel pipe feed straightening device 3 includes an aligning case, and aligning case includes that the vertically arranged steel pipe that is located at moves Two blocks of side plates of path left and right directions and the two end plates 10 positioned at steel pipe motion path direction, two blocks of side plates and two end plates enclose Rectangular frame and be fixed on bottom plate, offered in the middle part of two end plates for steel pipe by opening, two blocks of side plates form described Benchmark side plate 5 and adjusting side plate 6.
In this way, aligning case is as a whole, it can better ensure that straightening roll and align the installation of pipe regulating mechanism, Ensure the mutual alignment relation between straightening roll, better ensures that leveling effect.
Wherein, it is also laterally fixedly connected between two blocks of side plates and is provided with transverse reinforced bar.It can preferably improve so strong Straight case intensity, ensures that the intensity that each pair of straightening roll mutually exerts a force meets leveling effect enough.
Wherein, two sections of opposite adjusting arcuate sockets 9 ' are provided on straightening roll bottom plate 7, two sections of adjustings are based on arcuate socket The same center of circle is arranged and the center location horizontal face 7 upper straightening roll center of straightening roll bottom plate is arranged, on side plate respectively Corresponding two sections of adjustings are provided with bolt with arcuate socket and are pierced by adjusting arcuate socket 9 ' and by nut realization fixation.
In this way, two sections of adjusting arcuate sockets can be relied on, change the setting angle of straightening roll bottom plate, due to straightening roll and steel Pipe is that the mode that helix contact compresses compresses adjusting, therefore can change aligning roller end along straightening roll center rotating and straightening roller The adjustment to straightening roll pressing force may be implemented to the pressing force size of steel pipe in portion.Especially on benchmark side plate Benchmark straightening roll, due to needing as the benchmark for compressing adjusting, therefore it can not after setting apart from the far and near position of steel pipe Change adjustment, therefore when using causing straightening force to reduce after a period of time straightening roll surface abrasion, leveling effect is unable to get guarantor Card.The straightening roll that just can only more renew at this time；But after the mounting structure for using the adjusting arcuate socket, when on benchmark side plate After benchmark straightening roll surface abrasion causes straightening force to reduce, straightening roll pair can be improved by changing straightening roll setting angle The pressing force of steel pipe, therefore the service life of straightening roll can be extended to a certain extent, dramatically save production cost.
Wherein, straightening roll bottom plate 7 is circular slab, and to correspond to the center of circle identical for the circular slab center of circle and adjusting arcuate socket, aligns It is provided with angle scale 11 on side plate on the outside of 7 upper end of roller bottom plate, face angle scale 11 is arranged angled on straightening roll bottom plate 7 Cursor line.
In this way need rotate adjust straightening roll bottom plate angle when, preferably can accurately be adjusted according to angle scale needed for Angular dimension.
Wherein, the straightening roll regulating mechanism, including straightening roll plate outer side Middle face evagination and run through side panel appearance The round platform 12 in face, round platform 12 and side plate fixed setting, 12 middle part of round platform are arranged along axial line through round platform 12 and straightening roll bottom plate 7 Have a through-hole, through-hole outer end with one section of reduced diameter section and inner end with one section of enlarged diameter section, it is coaxial in through-hole reduced diameter section to set An adjusting rod 13 is set and has been rotatably engaged, 13 outer end of adjusting rod is stretched out round platform 12 and is fixed there are one regulation handle 14, The axial limit structure for limiting the axial movement of adjusting rod 13 is provided between adjusting rod 13 and through-hole reduced diameter section, through-hole is big It is axially slidably connected with the end of a roller seat connecting cylinder 15 in diameter segment, and through-hole enlarged diameter section is connected with roller seat The circumferential position limiting structure for limiting the rotation of roller seat connecting cylinder 15 is provided between cylinder 15, roller seat connecting cylinder 15 is located in through-hole The inner peripheral surface of one end is provided with internal thread, and the external screw thread on internal thread and adjusting rod is connected, and roller seat connecting cylinder 15 is separate The roller seat 16 for installing straightening roll is arranged in one end of through-hole.
In this way, rotation regulation handle, can rely on the rotation of adjusting rod that roller seat connecting cylinder is driven to do flexible fortune along its axial direction It is dynamic, and then drive roller seat and straightening roll thereon toward face steel pipe direction closer or far from and then realizing to straightening roll pressing force The adjusting of size.Have many advantages, such as it is simple in structure, it is easy to adjust quick reliable.
Wherein, the axial limit structure between adjusting rod 13 and through-hole reduced diameter section is by 13 surface of adjusting rod and through-hole wall Between a circle protrusion in circumferential direction and groove coordinate to obtain.With simple in structure, reliable feature is limited.
Wherein, the circumferential position limiting structure between through-hole enlarged diameter section and roller seat connecting cylinder 15 by 15 surface of roller seat connecting cylinder and A protrusion and groove between through-hole wall in an axial direction coordinate to obtain.With simple in structure, reliable feature is limited.
Wherein, also extend vertically through and be screwed on there are one fastening bolt in 12 peripheral surface of round platform, fastening bolt inner end be used for and The contact of adjusting rod 13, which is realized, to be fixed.In this way, after rotating regulation handle rotation adjusting, fastening bolt can be relied on real Now positioning is locked, prevents from loosening.
Wherein, steel pipe transmission device 1 includes the steel pipe advancement mechanism for driving steel pipe to advance along axis, further includes being used for The steel pipe rotary mechanism for driving steel pipe to be rotated centered on axial line.
In this way, steel pipe is rotated while forward so that itself be in what rotation moved ahead when steel pipe is aligned State, so that straightening roll and the areal extent of steel pipe contact increase in the unit interval, improve leveling effect and efficiency.Together When, steel pipe by rotate it is forward in a manner of so that the inspected area bigger popped one's head in steel pipe defectoscope can rely on fixed spy Head realizes the flaw detection in steel pipe circumferential direction, preferably avoids missing inspection, enhances the reliability and stability of flaw detection so that can rely on Less probe realizes better flaw detection effect.
Wherein, steel pipe advancement mechanism includes a pair of of advancing roller 17, and 17 peripheral surface of advancing roller is provided with rubbing for concave arc Slot is wiped, the frictional groove of 17 peripheral surface of advancing roller, which faces, to be arranged and in the inner, two advancing rollers 17 to be each by steel pipe sandwiched It is sequentially connected from by a set of advance roller transmission mechanism and same steel pipe advance motor 18, steel pipe advance is used for band with motor Two 17 relative rotation of advancing roller are moved to drive steel pipe to move ahead.
In this way, steel pipe drives realization to advance by the advancing roller of a pair of synchronous relative rotation, it is reliable to ensure that steel pipe advances, and It avoids force imbalance from leading to pipe deformation to influence subsequently to detect a flaw, better ensures that flaw detection effect.
Wherein, steel pipe advancement mechanism further includes the advancing roller mounting bracket 19 of a rectangular frame structure, advancing roller mounting bracket Two spaced advance roll shafts 20 arranged side by side are rotatably mounted in 19 inner cavities, two 20 place planes of advance roll shaft are vertical In steel pipe motion path, advancing roller 17 is mounted on advance roll shaft 20, and advance roller transmission mechanism includes the advance roll shaft 20, also Including spaced jackshaft 21, jackshaft 21 are installed in rotation on advancing roller mounting bracket 19 side by side with advance roll shaft 20 And the power intake of advancing roller mounting bracket 19 is stretched out there are one tools, respective jackshaft 21 is dynamic in two sets of advance roller transmission mechanisms Power input terminal stretches out in the not ipsilateral of advancing roller mounting bracket 19, and the part that jackshaft is located in advancing roller mounting bracket 19 passes through one External gear wheel and corresponding advance roll shaft 20 are sequentially connected, and jackshaft 21 is located on the power intake outside advancing roller mounting bracket 19 Steel pipe advance worm gear 22 is installed, steel pipe advance worm gear 22 and one are parallel to the setting of steel pipe motion path direction and are advancing The steel pipe of 19 lateral surface of roller mounting bracket advances to be engaged with worm screw 23, and the steel pipe of two sets of advance roller transmission mechanisms, which advances, uses worm screw 23 each One end of the comfortable same direction is provided with gear 24 and a power input gear 25 engages, and the power input gear 25 is vertical It is arranged and is installed in rotation on 19 outer end face of advancing roller mounting bracket, 19 edge of advancing roller mounting bracket in steel pipe motion path The rear and front end end face in steel pipe motion path direction and 25 middle part of power input gear there are for steel pipe by space, move One end of power input gear 25 and steel pipe advance to be sequentially connected with motor 18.
The steel pipe advancement mechanism in this way can rely on the same steel pipe to advance opposite with electronic while two advancing rollers of drive The transmission of steel pipe is better achieved in synchronous rotary.Steel pipe advancement mechanism itself has simple in structure simultaneously, and layout is ingenious compact, The advantages that reliable transmission.Further, one end of power input gear is sequentially connected by belt and steel pipe advance with motor, this Spline structure is simple and reliable transmission, and further, steel pipe advance electricity consumption machine is located on the bottom plate below advancing roller mounting bracket, in this way It is simple in structure and installation and power is facilitated to transmit.
Wherein, tube fraction power adjustment mechanism, the tube fraction power adjustment mechanism are additionally provided in steel pipe advancement mechanism Including spaced a pair of of lever drive plate 26 side by side, 26 place plane of lever drive plate is parallel with steel pipe direction of advance, thick stick Bar driver plate 26 is installed in rotation on jackshaft 21 described in same root, and lever drive plate 26 is located in advancing roller mounting bracket 19 One end a piece advance roll shaft 20 is installed and constitutes adjusting advance roll shaft, it is horizontal between two 26 rear ends of lever drive plate To one piece of adjustable plate 27 is fixedly connected with, there are one the adjustment holes of bar shaped for the setting of 27 upper edge steel pipe direction of advance of adjustable plate, adjust An adjusting bolt is vertically installed in hole, adjusting bolt one end is fixed on advancing roller mounting bracket 19, and adjusting bolt, which is located at, to be adjusted The upper and lower surface of section plate is respectively screwed with a location nut（Adjusting bolt and location nut are not shown in figure）.
In this way, the position for adjusting adjustable plate in adjusting bolt can be relied on, and then by the rotation band of lever drive plate Compression of the adjusting with the advancing roller realization on advance roll shaft to steel pipe is moved, and then realizes the tune to tube fraction power size It saves, adjusting position is transferred to by advancing roller mounting bracket external position, more convenient adjusting behaviour using lever drive plate in the structure Make and laborsaving, while lever drive plate makes not influencing advance roller transmission mechanism in its adjustment process using jackshaft as axis of rotation Drive mechanism；Therefore have many advantages, such as simple in structure, it adjusts reliable convenient and efficient laborsaving.Meanwhile the structure can also facilitate tune Whole realize is driven the compression of different size model steel pipe.
Wherein, the steel pipe rotary mechanism includes main transmission babinet 28, and main transmission babinet 28 is along steel pipe progress path direction Rear and front end rotatably arranged with there is guide sleeve 29, hollow spindle 30, the hollow spindle 30 are fixedly connected between guide sleeve 29 Inner cavity constitutes steel pipe progress path, and the rear and front end of the advancing roller mounting bracket 19 is fixed on hollow spindle 30, hollow It is further fixedly arranged on rotation output wheel 31 on main shaft 30, rotates output wheel 31 and steel pipe rotary is sequentially connected with motor.
In this way, steel pipe rotary motor can be relied on to drive hollow spindle rotation by belt pulley, and then before drive entirely It is rotated into roller mounting bracket so that steel pipe is driven while being driven advance to be rotated.Therefore the steel pipe rotary mechanism being capable of band Moving ahead for steel pipe is not interfered with while dynamic steel pipe rotary, and there is the advantages that simple in structure, reliable transmission, rotation output is stablized.
Wherein, the rotation output wheel 31 is belt pulley and is sequentially connected with motor by belt mechanism and steel pipe rotary； Keep its simple in structure, it is of low cost, be conducive to implement and it is of low cost.Still further, the steel pipe rotary is set to motor It is set up in parallel with motor below main transmission babinet and with steel pipe advance, keeps its compact-sized, easy for installation, reliable transmission.
Wherein, the steel pipe defectoscope 2 includes detection case 32, side of the detection case 32 along the front and back side of steel pipe direction of advance It has respectively opened up a through-hole on plate, a set of flaw detection mechanism is respectively installed before and after detection case 32 on the side plate of side, flaw detection mechanism has One flaw detection being located inside detection case 32 probe 33, flaw detection, which is popped one's head in, 33 is fixed on vertically arranged adjusting rod 34 Lower end, 34 upper end of adjusting rod are mounted on 32 side plate of detection case, and the probe of two flaw detection mechanisms is located at steel pipe progress path Both sides and face steel pipe progress path setting.
In this way, in steel pipe defectoscope, popped one's head in using the right each setting one of a first from left, then the side for coordinating steel pipe to be threadingly advanced Formula detects a flaw in such a way that probe fixation and steel pipe are threadingly advanced, simpler structure can be leaned on to be realized well to steel The full surface inspection of pipe improves flaw detection efficiency, avoids missing inspection, improves test reliability.
Wherein, steel pipe defectoscope is spaced apart two along steel pipe direction of advance, in a steel pipe defectoscope Probe is ultrasonic detecting probe, and the probe in another steel pipe defectoscope is eddy current probe；Ultrasound examination is set In the steel pipe defectoscope of probe, the flexible sliding sleeve 35 for cooperatively forming dynamic sealing with steel pipe is installed in detection case through-hole, The flaw detection of ultrasonic water embrane method is realized filled with detection liquid, which is set to a detection liquid returnable 36 in the detection case It is interior.
In this way, combining EDDY CURRENT to detect a flaw using the flaw detection of ultrasonic water embrane method, two kinds of flaw detection modes are combined, more It is effectively prevented from missing inspection, further increases flaw detection accuracy and reliability.Further, the inner ring wall of flexible sliding sleeve has a circle Lip made from flexiplast, lip is used for and dynamic sealing is realized in steel tube surface contact.
Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, glass is additionally provided on the side of detection case 32 Observation window 37；Observation detection liquid liquid level position can be facilitated.Still further, vertical scale is arranged on glass window 37 Line, height and position is to ensure flaw detection effect where can conveniently accurately acquiring liquid level.
Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, 32 top of detection case is provided with input duct（Figure In do not show）, input duct top is provided with heating vessel（It is not shown in figure）, heating vessel is by water pump and returns Flow tube road is connected with detection liquid returnable.
In this manner it is achieved that the recycling of detection liquid.Simultaneously importantly, may be implemented one based on the structure Kind ultrasonic wave Ndt Methods For Steel Tubes, i.e., will realize the detection liquid of ultrasonic examination, so that it is returned again to cycle after heating and flows into In detection case so that detect liquid temperature in detection case and increase, so that bubble expands spilling after capable of heating in detection liquid.Therefore The micro-bubble in detection liquid can be eliminated well in this way, greatly avoid existing and generating micro- in the detection liquid in detection case Minute bubbles and influence detection result.It is rotary advance further to combine steel pipe, the rotation of steel pipe can be relied on to avoid steel pipe The bubble on surface adheres to, therefore greatly improves flaw detection accuracy.
Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, there are one overflow for 32 upper side setting of detection case Chute 38,38 return side of overflow launder and 32 inner cavity of detection case connect, and the input duct lower end is arranged in overflow launder.In this way, Overflow channel can be relied on, the liquid fluctuating in detection case is preferably avoided and preferably avoids the generation of bubble, to protect Demonstrate,prove better detection result.
Wherein, probe regulating device is additionally provided on detection case side plate, probe regulating device includes a translation adjusting machine Structure, the translation adjustment mechanism include a hanging plate 39 that is vertically arranged and being fixed on above 32 side plate of detection case, on hanging plate 39 Medial surface, which is vertically bonded, is provided with translation substrate 40, and 40 outside tool of translation substrate is there are one outside translation protrusion 41 and leans on Translation protrusion 41 limits cooperation in a horizontal sliding slot on hanging plate 39 horizontally slidablely, and translation adjustment mechanism also wraps A translation adjusting screw rod 42 is included, vertical plane where translation adjusting screw rod 42 is parallel to corresponding side plate and horizontally disposed, translation 42 inner end screw thread of adjusting screw rod is screwed in translation protrusion 41 in horizontally disposed screw hole, and 42 outer end of translation adjusting screw rod can turn It is pierced by hanging plate 39 dynamicly and translation adjusting screw rod handle 43 is set, being translatable between adjusting screw rod 42 and hanging plate 39 has for limiting The position limiting structure that system translation adjusting screw rod 42 moves axially（The position limiting structure can be a circle along translation adjusting screw rod week when implementation The boss and respective slot set up obtains）；34 upper end of adjusting rod is mounted on translation substrate 40.
In this way, the handle of rotary translational movement adjusting screw rod outer end can be relied on, realize that the translation to the substrate that is translatable is adjusted, in turn By adjusting rod drive probe in the horizontal direction close to or far from steel pipe, preferably to adjust the detection range of probe to ensure Accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.With simple in structure, stabilization easy to adjust can By the characteristics of.
Wherein, it is translatable between substrate 40 and hanging plate 39 and is additionally provided with locking mechanism, locking mechanism includes being located at translation substrate The dovetail groove in the horizontal direction that 40 lateral surfaces are recessed, 39 medial surface of hanging plate, which corresponds to dovetail groove and coordinates horizontally slidablely, to be set It is equipped with swallow-tail form protrusion, locking mechanism further includes vertically arranged locking bolt（It is not shown in figure）, locking bolt from translation base 40 upper end face of plate, which vertically runs through translation substrate 40 and is connected in swallow-tail form protrusion, realizes abutting locking.In this way, can be flat Dynamic realized after Level tune between substrate and hanging plate is locked.
Wherein, 39 lower inside surface of hanging plate and corresponding side plate upper outside face are affixed setting, 39 lower part of hanging plate edge perpendicular to Side plate direction is provided with positioning screw hole, and one section is provided with using positioning screw hole as the arc positioning hole in the center of circle, arc above positioning screw hole Respective grafting is provided with bolt in shape location hole and positioning screw hole（It is not shown in figure）Realize that side plate and hanging plate 39 are solid across side plate Fixed connection.
In this way, hanging plate is realized using simple structure and corresponds to being fixedly connected for side plate, while the connection structure may be used also Vertical deflection adjusting is carried out to hanging plate to facilitate using positioning screw hole as the center of circle, and then may be implemented to the probe of adjusting rod lower end Vertical deflection is adjusted, and ensures accuracy of detection preferably to adjust the detection range of probe, and can also be big according to steel pipe model Small realization test position is adjusted.
Wherein, 40 inside of translation substrate is additionally provided with vertical coarse adjustment mechanism, and the vertical coarse adjustment mechanism includes along translation base One vertical coarse adjustment substrate 44 of 40 medial surface of plate fitting setting, 44 outside of vertical coarse adjustment substrate（Orientation is described in detection case Outside direction is interior exterior orientation description basis）There are one slide vertically with raised and slide vertically by this and can vertically be slided with protrusion for setting Cooperation is limited dynamicly in a vertical sliding slot on translation substrate 40, and vertical coarse adjustment mechanism further includes a vertical coarse adjustment spiral shell Bar 45, vertical 45 lower thread of coarse adjustment screw rod are screwed in slide vertically and use in the upper vertically arranged screw hole of protrusion, vertical coarse adjustment spiral shell 45 upper end of bar is rotationally pierced by translation upper surface of base plate and handle is arranged, between vertical coarse adjustment screw rod 45 and translation substrate 40 also It is provided with the position limiting structure moved axially for limiting vertical coarse adjustment screw rod 45（The position limiting structure can be a circle along perpendicular when implementation The boss and respective slot set up to coarse adjustment screw rod week obtains）；34 upper end of adjusting rod is mounted on vertical coarse adjustment substrate 44. The substrate that is translatable in present embodiment is made of two pieces of vertical fixed veneers side by side, an outer veneer for being arranged and The structure of hanging plate cooperation, another inner veneer is used to be arranged and the structure of vertical coarse adjustment substrate cooperation, more convenient in this way The setting and installation of structure.
In this way, the handle for rotating vertical coarse adjustment screw rod upper end can be relied on, and then realize to the first of adjusting rod upper and lower position Successive step, and then drive probe vertically close or separate steel pipe by adjusting rod, preferably to adjust the inspection of probe Range is surveyed to ensure accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.With simple in structure, tune Section facilitates reliable and stable feature.
Wherein, vertical fine-tuning mechanism is additionally provided on vertical coarse adjustment substrate 44, vertical fine-tuning mechanism is vertically set including one The vertical accurate adjustment screw rod 46 set, vertical 46 top of accurate adjustment screw rod are installed in rotation on vertical 44 side of coarse adjustment substrate and are laterally extended In the installation protrusion 47 gone out, vertical 46 upper end of accurate adjustment screw rod stretches out installation protrusion 47 and is provided with handle, vertical accurate adjustment screw rod It is additionally provided with the position limiting structure being axially moveable for limiting vertical accurate adjustment screw rod 46, vertical accurate adjustment between 46 and installation protrusion 47 46 lower thread of screw rod coordinates in a horizontally disposed vertical accurate adjustment nut 48, and vertical accurate adjustment nut 48 is arranged mounted on one In a horizontally disposed limit guide sleeve 49, limit guide sleeve 49 is mounted on vertical coarse adjustment substrate 44, is limited 49 inner wall of guide sleeve and is erected Have vertically arranged concave-convex fit structure to limit the circumferential direction of vertical accurate adjustment nut 48 between 48 peripheral outer wall of accurate adjustment nut Rotation, the adjusting rod 34 is fixedly installed downwards in vertical 48 lower end of accurate adjustment nut.
In this way, the handle for rotating vertical accurate adjustment screw rod upper end can be relied on, and then realize the essence to adjusting rod upper and lower position Really adjustment makes its first coarse adjustment accurate adjustment again, can more accurately adjust the detection range for determining probe to ensure accuracy of detection, and It can also realize that test position is adjusted according to steel pipe model size.With simple in structure, reliable and stable feature easy to adjust.
Wherein, horizontal deflection regulating mechanism, the horizontal deflection regulating mechanism packet are additionally provided on vertical coarse adjustment substrate 44 The limit guide sleeve 49 is included, 49 outer surface of limit guide sleeve is provided with wrom tooth and forms deflection adjusting worm gear, deflects adjusting worm gear In a worm seat 50 being fixed on vertical coarse adjustment substrate 44, be also equipped on worm seat 50 one it is horizontally disposed Deflection, which is adjusted, uses worm screw 51, and it is the engagement of self-locking shape that deflection, which is adjusted with worm screw 51 and deflection adjusting with worm gear, and deflection adjusts and uses worm screw 51 one end stretch out worm seat 50 and are equipped with handle.
In this way, rotational deflection can be relied on to adjust the handle with worm screw outer end, adjusted by Worm Wheel System subband is dynamic The horizontal rotation of bar, and then probe is driven to realize the adjustment of horizontal deflection position, it can more accurately adjust the inspection for determining probe Range is surveyed to ensure accuracy of detection, and can also realize that test position is adjusted according to steel pipe model size.Meanwhile the clever structure Worm Wheel System pair and leadscrew-nut mechanism are combined together by ground, are realized to leading screw spiral shell by the self-locking function of worm and gear The rotation limit of nut in parent agency；Therefore it relies on simple structure to realize adjusting rod up and down motion adjusting and rotation simultaneously and adjusts Function.With simple in structure, reliable and stable feature easy to adjust.

Claims (10)

1. a kind of ultrasonic type Ndt Methods For Steel Tubes, which is characterized in that will realize the detection liquid of ultrasonic examination, make it by adding It returns again to cycle after heat to flow into detection case so that detect liquid temperature in detection case and increase, so that bubble energy in detection liquid It expands and overflows after enough heating.
2. ultrasonic type Ndt Methods For Steel Tubes as described in claim 1, which is characterized in that use ultrasonic wave steel pipe below Failure detector realizes, the ultrasonic wave steel pipe defectoscope, including detection case, and being provided with flaw detection in detection case pops one's head in, and detects Case on the side plate of the front and back side of steel pipe direction of advance along respectively offering the through-hole to pass through for steel pipe, which is characterized in that it is super to pop one's head in Acoustic detection probe is equipped with the flexible sliding sleeve for cooperatively forming dynamic sealing with steel pipe in detection case through-hole, is filled in detection case There is detection liquid to realize the flaw detection of ultrasonic water embrane method, which is set in a detection liquid returnable；Flexible sliding sleeve Inner ring wall has lip made from a circle flexiplast, and lip is used for and dynamic sealing is realized in steel tube surface contact；
It is provided with input duct above detection case, is provided with heating vessel above input duct, heating vessel passes through Water pump is connected with reflux line with detection liquid returnable.
3. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that be additionally provided on the side of detection case Glass window；
Vertical graduation mark is set on glass window.
4. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that be provided with one at the upper side of detection case A overflow launder, overflow channel side and detection box cavity connect, and the input duct lower end is arranged in overflow launder.
5. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that each on the side plate of side before and after detection case A set of flaw detection mechanism is installed, flaw detection mechanism includes a vertically arranged adjusting rod, pops one's head in as two and is individually fixed at one The lower end of root adjusting rod, adjusting rod upper end be mounted on detection case side plate on, two flaw detection mechanisms probe be located at steel pipe before The simultaneously face steel pipe progress path setting of the both sides of inbound path.
6. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 5, which is characterized in that be additionally provided with spy on detection case side plate Head regulating device, probe regulating device include a translation adjustment mechanism, and the translation adjustment mechanism includes one vertically arranged And it is fixed on the hanging plate above detection case side plate, medial surface, which is vertically bonded, on hanging plate is provided with translation substrate, is translatable outside substrate Side tool horizontally slidable limits the water coordinated on hanging plate there are one outside translation protrusion and by translation is raised In flat sliding slot, translation adjustment mechanism further includes a translation adjusting screw rod, and translation adjusting screw rod is parallel to where corresponding side plate Vertical plane and horizontally disposed, translation adjusting screw rod inner end screw thread is screwed in translation protrusion above in horizontally disposed screw hole, flat Dynamic adjusting screw rod outer end is rotationally pierced by hanging plate and handle is arranged, and being translatable between adjusting screw rod and hanging plate, it is flat for limiting to have The position limiting structure of dynamic adjusting screw rod axial movement；Adjusting rod upper end is mounted on translation substrate.
7. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 6, which is characterized in that hanging plate lower inside surface and respective side Plate upper outside face is affixed setting, and hanging plate lower part is provided with positioning screw hole along perpendicular to side plate direction, is arranged above positioning screw hole Have one section using positioning screw hole as the arc positioning hole in the center of circle, in arc positioning hole and positioning screw hole respective grafting be provided with bolt and wear It crosses side plate and realizes that side plate is fixedly connected with hanging plate.
8. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 6, which is characterized in that be additionally provided on the inside of translation substrate perpendicular To coarse adjustment mechanism, the vertical coarse adjustment mechanism includes a vertical coarse adjustment substrate along translation substrate medial surface fitting setting, is erected There are one slide vertically with raised and slide vertically to be limited with can sliding vertically with protrusion by this and match for setting on the outside of to coarse adjustment substrate It closes in a vertical sliding slot on translation substrate, vertical coarse adjustment mechanism further includes a vertical coarse adjustment screw rod, vertical coarse adjustment Screw rod lower thread, which is screwed in, to slide vertically in the upper vertically arranged screw hole of protrusion, and vertical coarse adjustment screw rod upper end is rotationally worn Go out to be translatable and upper surface of base plate and handle is set, is additionally provided between vertical coarse adjustment screw rod and translation substrate for limiting vertical coarse adjustment The position limiting structure of screw rod axial movement；Adjusting rod upper end is mounted on vertical coarse adjustment substrate.
9. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that further include for driving steel pipe along axis The steel pipe transmission device of line direction movement；
Steel pipe transmission device includes the steel pipe advancement mechanism for driving steel pipe to advance along axis, further include for drive steel pipe with The steel pipe rotary mechanism rotated centered on axial line；
Steel pipe advancement mechanism includes a pair of of advancing roller, and advancing roller peripheral surface is provided with the frictional groove of concave arc, advancing roller week It faces and is arranged and in the inner, two advancing rollers to be passed each by a set of advancing roller by steel pipe sandwiched to the frictional groove on surface Motivation structure and the same steel pipe advance are sequentially connected with motor, and steel pipe advance is with motor for driving two advancing roller relative rotation To drive steel pipe to move ahead.
10. ultrasonic type Ndt Methods For Steel Tubes as claimed in claim 9, which is characterized in that steel pipe advancement mechanism further includes one The advancing roller mounting bracket of a rectangular frame structure is rotatably mounted with two interval settings side by side in advancing roller mounting bracket inner cavity Advance roll shaft, planes where two advance roll shafts are mounted on advance roll shaft perpendicular to steel pipe motion path, advancing roller, advance Roller transmission mechanism includes the advance roll shaft, further include and advance roll shaft spaced jackshaft, jackshaft are rotatable side by side Ground is mounted on advancing roller mounting bracket and stretches out the power intake of advancing roller mounting bracket, two sets of advancing roller drivers there are one tools The power intake of respective jackshaft stretches out in the not ipsilateral of advancing roller mounting bracket in structure, and jackshaft is located at advancing roller mounting bracket Interior part is sequentially connected by an external gear wheel and corresponding advance roll shaft, and jackshaft is located at the power outside advancing roller mounting bracket Worm gear is installed, worm gear and one are parallel to steel pipe motion path direction and are arranged in advancing roller mounting bracket lateral surface on input terminal Worm screw engages, and one end of each comfortable same direction of worm screw of two sets of advance roller transmission mechanisms is provided with gear and a power input Gear engages, and the power input gear is arranged perpendicular to steel pipe motion path and is installed in rotation on outside advancing roller mounting bracket On end face, the advancing roller mounting bracket is equal in the middle part of the rear and front end end face in steel pipe motion path direction and power input gear There are for steel pipe by space, one end of power input gear and steel pipe advance are sequentially connected with motor.
CN201810764039.9A 2017-08-24 2017-08-24 Ultrasonic steel pipe flaw detection method Active CN108802186B (en)

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Application Number Priority Date Filing Date Title
CN201810764039.9A CN108802186B (en) 2017-08-24 2017-08-24 Ultrasonic steel pipe flaw detection method

Applications Claiming Priority (2)

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