CN109425652A

CN109425652A - Ndt Methods For Steel Tubes

Info

Publication number: CN109425652A
Application number: CN201710734708.3A
Authority: CN
Inventors: 吴建军; 周红波; 赵伟
Original assignee: Chongqing Iron and Steel Group Co Ltd
Current assignee: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd.
Priority date: 2017-08-24
Filing date: 2017-08-24
Publication date: 2019-03-05
Anticipated expiration: 2037-08-24
Also published as: CN109425652B

Abstract

The invention discloses a kind of Ndt Methods For Steel Tubes, steel tube flaw detection is realized using the probe being set near steel tube surface in this method, which is characterized in that fixed using popping one's head in this method, the mode that steel pipe spirally advances realizes that steel tube surface is detected a flaw.The present invention, which has, to be implemented simply, to can be improved flaw detection area and flaw detection efficiency, the advantages of avoiding missing inspection, improve test reliability.

Description

Ndt Methods For Steel Tubes

Technical field

The present invention relates to a kind of steel tube surface Defect detection technologies；More particularly to a kind of Ndt Methods For Steel Tubes.

Background technique

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 requires perfect non-destructive detecting device, carries out line flaw detection to steel pipe.To guarantee the quality of factory steel pipe, existing spy Hurting 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, often needs to complete it two kinds of detections, At this moment it just needs operator 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 It repeats, large labor intensity, examines the disadvantage that the cycle of operation is long, inefficient, become one for restricting steel tube flaw detection detection speed 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 will lead to deform again before steel tube flaw detection, such as locates 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.It if clearing up not in time, can make a big impact to flaw detection, serious interference be generated during flaw detection, or even mistake can be generated 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 automatic flaw detection device for steel pipe part etc..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 to pop one's head in 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 usually 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, is unable to satisfy 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, so that the variation of flaw indication amplitude is caused, if cannot be timely It adjusts, also will affect the reliability and accuracy of flaw detection.For eddy current inspection, there is also identical problems.

Summary of the invention

In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of implementation letter It is single, it can be improved flaw detection area and flaw detection efficiency, avoid missing inspection, improve the Ndt Methods For Steel Tubes of test reliability.

In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:

A kind of Ndt Methods For Steel Tubes realize steel tube flaw detection, feature using the probe being set near steel tube surface in this method It is, fixed using popping one's head in this method, the mode that steel pipe spirally advances realizes that steel tube surface is detected a flaw.

In this way, steel pipe to be to rotate forward mode, so that the inspected area popped one's head in steel pipe defectoscope is bigger, 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 Better flaw detection effect can be realized by less probe by obtaining.

As optimization, this method realizes that steel tube flaw detection system includes using below using steel tube flaw detection system below Steel pipe transmission device for driving steel pipe to move in the axial direction and the steel pipe defectoscope being arranged on steel pipe motion path； The steel pipe defectoscope includes detection case, and detection case is logical along respectively having opened up one on the side plate of the front and back side of steel pipe direction of advance Hole, a set of flaw detection mechanism is respectively equipped with before and after detection case on the side plate of side, there is one to be located inside detection case for flaw detection mechanism Flaw detection probe, flaw detection are fixed on the lower end of a vertically arranged adjusting rod with probe, and adjusting rod upper end is mounted on detection case On side plate, the probe of two flaw detection mechanisms is located at the two sides of steel pipe progress path and the setting of face steel pipe progress path；

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.

In this way, respectively being popped one's head in for setting one using the first from left right side, being fixed and steel pipe advance using probe in steel pipe defectoscope 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 cooperates 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 in the detection case filled with detection liquid realization ultrasonic water embrane method, 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, is additionally provided with glass on the side of detection case Glass observation window；It can be convenient observation detection liquid liquid level position.Still further, vertical graduation mark is set on glass window, Height and position where accurately acquiring liquid level be can be convenient to guarantee flaw detection effect.

Further, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, is provided with input duct 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, in this Sample Method, using inspection It surveys liquid and passes back into detection case the operating method for carrying out steel tube flaw detection again after heating vessel heats, it will be able to very The micro-bubble in detection liquid is eliminated well, greatly avoids existing and generate in the detection liquid in detection case micro-bubble and shadow Detection effect is rung, while being rotary advance further combined with steel pipe, the gas of steel tube surface can be avoided by the rotation of steel pipe Bubble attachment, therefore greatly improve flaw detection accuracy.

Further, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, is provided with one at the upper side of detection case 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 guarantee more Good detection effect.

As 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, has an outside translation protrusion on the outside of translation substrate and by being translatable with convex It rises the horizontal sliding slot for limiting and cooperating on hanging plate horizontally slidablely in, 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 Translation is screwed in in the upper horizontally disposed screw hole of protrusion, translation adjusting screw rod outer end is rotationally pierced by hanging plate and handle is arranged Hand, being translatable between adjusting screw rod and hanging plate has the position limiting structure for limiting translation adjusting screw rod axial movement (should when implementation Position limiting structure can be the boss that the translation of circle edge is set up in adjusting screw rod week and respective slot obtains)；Adjusting rod upper end peace 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 translation substrate is adjusted, in turn By adjusting rod drive probe in the horizontal direction close to or far from steel pipe, to adjust the detection range of probe preferably to ensure Detection accuracy, and can also realize that detection position is adjusted according to steel pipe model size.Simple with 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, is provided with one section 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 grafting respective in positioning screw hole and realizes that side plate is fixedly connected with hanging plate across side plate.

In this way, realizing being fixedly connected for hanging plate and corresponding side plate using simple structure, 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 detection accuracy preferably to adjust the detection range of probe, and can also be big according to steel pipe model Small realization detection 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, (orientation is described with foreign side in detection case in vertical coarse adjustment substrate outside Basis is described to for interior exterior orientation) it is provided with one and slides vertically with protrusion and this is leaned on to slide vertically and can slide vertically ground with protrusion In a vertical sliding slot on translation substrate, vertical coarse adjustment mechanism further includes a vertical coarse adjustment screw rod for limit cooperation, is erected 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 (position limiting structure can be a circle and vertically sets in coarse adjustment screw rod circumferential direction the position limiting structure moved axially to coarse adjustment screw rod when implementation The boss and respective slot set obtain)；Adjusting rod upper end is mounted on vertical coarse adjustment substrate.

In this way, can be by the handle of rotation vertical coarse adjustment screw rod upper end, and then realize to the first of adjusting rod upper and lower position Successive step, so by adjusting rod drive probe along the vertical direction close to or far from steel pipe, preferably to adjust the inspection of probe Range is surveyed to ensure detection accuracy, and can also realize that detection position is adjusted according to steel pipe model size.It is simple with structure, it adjusts 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, which is arranged, is 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, can be by the handle of rotation vertical accurate adjustment screw rod upper end, and then realize the essence to adjusting rod upper and lower position Really adjustment makes its first coarse adjustment accurate adjustment again, can adjust the detection range for determining probe more accurately to ensure detection accuracy, and It can also realize that detection position is adjusted according to steel pipe model size.It is simple with 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, limits guide sleeve outer surface and be provided with wrom tooth formation worm gear, 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 are the engagement of 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 adjusted more accurately to ensure Detection accuracy, and can also realize that detection 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 by the self-locking function of worm and gear to nut in leadscrew-nut mechanism 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 Structure is simple, reliable and stable feature easy to adjust.

As 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 guarantee that steel pipe advances, and It avoids force imbalance from leading to pipe deformation to influence subsequent flaw detection, better ensures that flaw detection effect.

As optimization, steel pipe advancement mechanism further includes the advancing roller mounting rack an of 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, are further included and are advanced Spaced jackshaft, jackshaft are installed in rotation on advancing roller mounting rack and there is a stretching to advance roll shaft side by side The power intake of roller mounting rack, 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 rack 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 rack, worm gear and one are parallel to steel pipe The worm screw engagement of advancing roller mounting rack lateral surface, each leisure of the 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 rack outer end face, and the advancing roller mounting rack 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 the space passed through for steel pipe, one end of power input gear It is sequentially connected with steel pipe advance with motor.

The steel pipe advancement mechanism in this way can advance opposite with electronic while two advancing rollers of drive by the same steel pipe The transmission of steel pipe is better achieved in synchronous rotary.Steel pipe advancement mechanism itself has structure simple 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 rack, in this way Structure is simple and installation and power is facilitated to transmit.

As 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 rack 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 is provided with the adjustment hole of a bar shaped on adjustable plate along steel pipe direction of advance, is vertically installed with one in adjustment hole Root adjusts bolt, adjusts bolt one end and is fixed on advancing roller mounting rack, 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 on bolt can be being adjusted by adjustable plate is adjusted, and then by the rotation band of lever drive plate The advancing roller realization on the adjusting advance roll shaft is moved to the compression of steel pipe, and then realizes the tune to tube fraction power size It saves, adjusting position is transferred to by advancing roller mounting rack 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 that structure is simple, 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 optimization, the steel pipe rotary mechanism includes main transmission cabinet, and main transmission cabinet is along steel pipe progress path direction Rear and front end can be rotatably set 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 rack 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, hollow spindle rotation can be driven by belt pulley by steel pipe rotary motor, and then before drive entirely It rotates into roller mounting rack, is rotated so that steel pipe is driven while being driven advance.Therefore the steel pipe rotary mechanism being capable of band It will not influence moving ahead for steel pipe while dynamic steel pipe rotary, have structure simple, reliable transmission, rotation exports the advantages that stablizing.

Further, the rotation output wheel is belt pulley and is connected by belt mechanism and steel pipe rotary motor drive It connects；Keep its structure simple, it is low in cost, be conducive to implement and it is low in cost.Still further, the steel pipe rotary is arranged with motor It is set side by side below main transmission cabinet and with steel pipe advance with motor, keeps its compact-sized, easy for installation, reliable transmission.

Implement simply, to can be improved flaw detection area and flaw detection efficiency, avoid missing inspection, improve in conclusion the present invention has The advantages of test reliability.

Detailed description of the invention

Fig. 1 is a kind of for implementing a kind of structural schematic diagram of steel tube flaw detection system of the method for the present invention.In figure steel pipe into Material straightener part is to adjust side plate to split state to show internal structure.

Fig. 2 is the top 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, (benchmark is only shown in figure With straightening roll).

Fig. 5 is the schematic perspective view 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 main 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 embodiment

When specific implementation: steel tube flaw detection is realized using the probe being set near steel tube surface in this Ndt Methods For Steel Tubes, It is characterized in that fixed using popping one's head in this method, the mode that steel pipe spirally advances realizes that steel tube surface is detected a flaw.

Below with reference to a kind of a kind of steel tube flaw detection system for implementing the method for the present invention and its attached drawing to the present invention make into The detailed description of one step.

As shown in Figures 1 to 10.A kind of steel tube flaw detection system, including bottom plate are provided with for driving steel pipe edge on bottom plate The steel pipe transmission device 1 of axis direction movement and the steel pipe defectoscope 2 being arranged on steel pipe motion path further include that setting exists Steel pipe feed straightening device 3 on bottom plate, steel pipe feed straightening device 3 be set to steel pipe transmission device feed end and for realizing The aligning of steel pipe.

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 two 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, structure are simple and leveling effect is good.More preferably Selection be that straightening roll and steel tube surface contact the every helix to be formed and rotate 180 degree range in steel tube surface circumferential direction；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 two sides while to steel pipe center position rolling extrusion, by the pipe of surface irregularity Wall leveling, guarantees 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 most preferably, improves tube bending situation and surface defect, and then better ensure that subsequent flaw detection 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 parallel to each other along steel pipe motion path direction； 5 medial surface of benchmark side plate is fixedly installed on a column straightening roll bottom plate 7 and the column straightening roll bottom plate 7 along steel pipe motion path direction The straightening roll of installation forms benchmark straightening roll, adjusts 6 medial surface of side plate and benchmark with straightening roll face and is provided with column aligning Straightening roll regulating mechanism is respectively arranged on roller bottom plate 7 and the column 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, can 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 of subsequent flaw detection.The benchmark straightening roll of steel pipe side simultaneously, can Using the positioning datum as adjusting, better ensure that steel pipe center line is consistent with motion path, after guaranteeing that steel pipe is finally aligned Straightness.Better choice is the contact pressure of benchmark straightening roll and steel pipe, is successively passed 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 being sequentially increased along the steel pipe direction of motion 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 drive bevel gear 8 and passive Helical gear 9, the steel pipe advance in the drive bevel 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 the motor in steel pipe transmission device for driving steel pipe to advance, active rotation is applied again Power Yu Gangguan actively exerts a force to steel pipe, can better ensure that steel pipe leveling effect.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 two end plates 10 positioned at steel pipe motion path direction, two blocks of side plates and two end plates enclose It rectangular frame and is fixed on bottom plate, the opening passed through for steel pipe is offered in the middle part of two end plates, 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, Guarantee 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, the intensity for guaranteeing that each pair of straightening roll mutually exerts a force meet 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 its far and near position apart from steel pipe can not after setting 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 correspond to the center of circle identical for the circular slab center of circle and adjusting arcuate socket, aligns Angle scale 11 is provided 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.

When needing to rotate adjusting straightening roll bottom plate angle in this way, needed for can preferably being precisely adjusted according to angle scale Angular dimension.

Wherein, the straightening roll regulating mechanism, including straightening roll plate outer side Middle face evagination and run through side panel appearance The rotary table 12 in face, rotary table 12 and side plate fixed setting, 12 middle part of rotary table are arranged along axial line through rotary table 12 and straightening roll bottom plate 7 There is a through-hole, through-hole outer end is with one section of reduced diameter section and inner end has one section of enlarged diameter section, 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 stretches out rotary table 12 and is fixed with a 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 cooperatively 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 screw thread, and the external screw thread on internal screw thread and adjusting rod is cooperatively 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 drive roller seat connecting cylinder to do flexible fortune along its axial direction by the rotation of adjusting rod It is dynamic, and then drive roller seat and straightening roll thereon toward face steel pipe direction close to or far from and then realizing to straightening roll pressing force The adjusting of size.Have many advantages, such as that structure is simple, 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 cooperate to obtain.It is simple with structure, limit reliable feature.

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 Cooperate to obtain along axial a protrusion and groove between through-hole wall.It is simple with structure, limit reliable feature.

Wherein, also extended vertically through in 12 peripheral surface of rotary table and be screwed with a fastening bolt, 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, it can be real by fastening bolt 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 rotate centered on axial line.

In this way, steel pipe is rotated while forward, so that itself being in what rotation moved ahead when steel pipe aligning State, so that straightening roll and the areal extent of steel pipe contact increase in the unit time, improve leveling effect and efficiency.Together When, steel pipe is to rotate forward mode, so that the inspected area popped one's head in steel pipe defectoscope is bigger, it can be by fixed spy Head realizes the flaw detection in steel pipe circumferential direction, preferably avoids missing inspection, enhances the reliability and stability of flaw detection, allows to 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 Dynamic two 17 relative rotation of advancing roller are to drive steel pipe to move ahead.

Wherein, steel pipe advancement mechanism further includes the advancing roller mounting rack 19 an of rectangular frame structure, advancing roller mounting rack 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 rack 19 side by side with advance roll shaft 20 And the power intake of advancing roller mounting rack 19 is stretched out with one, 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 rack 19, and jackshaft is located at the part in advancing roller mounting rack 19 by one External gear wheel and the transmission connection of corresponding advance roll shaft 20, jackshaft 21 are located on the power intake outside advancing roller mounting rack 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 rack advances to be engaged with worm screw 23, and the steel pipe of two sets of advance roller transmission mechanisms advances each with worm screw 23 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 rack, 19 edge of advancing roller mounting rack in steel pipe motion path There are the spaces passed through for steel pipe for the rear and front end end face and 25 middle part of power input gear in steel pipe motion path direction, move One end of power input gear 25 and steel pipe advance to be sequentially connected with motor 18.

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 rack 19 One end 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, the adjustment hole of a bar shaped is provided on adjustable plate 27 along steel pipe direction of advance, is adjusted It is vertically installed with an adjusting bolt in hole, adjusts bolt one end and is fixed on advancing roller mounting rack 19, adjusts bolt and is located at tune The upper and lower surface of section plate is respectively screwed with a location nut (adjust bolt in figure and location nut is not shown).

Wherein, the steel pipe rotary mechanism includes main transmission cabinet 28, and main transmission cabinet 28 is along steel pipe progress path direction Rear and front end can be rotatably set 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 rack 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.

Wherein, the rotation output wheel 31 is belt pulley and is sequentially connected by belt mechanism and steel pipe rotary with motor； Keep its structure simple, it is low in cost, be conducive to implement and it is low in cost.Still further, the steel pipe rotary is set to motor It is set side by side below main transmission cabinet and with steel pipe advance with motor, 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 A through-hole has respectively been opened up on plate, a set of flaw detection mechanism is respectively installed on the side plate of 32 front and back side of detection case, and flaw detection mechanism has One flaw detection being located inside detection case 32 probe 33, flaw detection are fixed on a vertically arranged adjusting rod 34 with probe 33 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 Two sides and face steel pipe progress path setting.

In this way, in steel pipe defectoscope, using right one probe of each setting of a first from left, then the side for cooperating 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 in the detection case, which is set to a detection liquid returnable 36 It is interior.

Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, is additionally provided with glass on the side of detection case 32 Observation window 37；It can be convenient observation detection liquid liquid level position.Still further, vertical scale is arranged on glass window 37 Line can be convenient height and position where accurately acquiring liquid level to guarantee flaw detection effect.

Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, input duct (figure is provided with above detection case 32 In do not show), heating vessel (not shown) is provided with above input duct, 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, detection liquid holds by liquid heating It is passed back into detection case again after device heat treatment, the micro-bubble in detection liquid can be eliminated well, greatly avoid detecting Exist in detection liquid in case and generate micro-bubble and influence detection effect, while before being rotary further combined with steel pipe Into the bubble of steel tube surface capable of being avoided to adhere to by the rotation of steel pipe, therefore greatly improve flaw detection accuracy.

Wherein, it is arranged in the steel pipe defectoscope of ultrasonic detecting probe, one is provided at the upper side of detection case 32 and is overflow 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 effect.

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, has an outside translation protrusion 41 on the outside of the substrate 40 that is translatable and leans on Translation is limited in the horizontal sliding slot cooperated on hanging plate 39 horizontally slidablely with protrusion 41, 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 in horizontally disposed screw hole, translation 42 outer end of adjusting screw rod can turn in protrusion 41 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 (position limiting structure can be a circle along translation adjusting screw rod week to the position limiting structure that system translation adjusting screw rod 42 moves axially when implementation The boss and respective slot set up obtains)；34 upper end of adjusting rod is mounted on translation substrate 40.

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 cooperates horizontally slidablely, to be set It is equipped with swallow-tail form protrusion, locking mechanism further includes vertically arranged locking bolt (not shown), and locking bolt is 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 It realizes and is locked after Level tune between dynamic substrate and hanging plate.

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, is provided with one section 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 (not shown) and realizes that side plate and hanging plate 39 are solid across side plate in shape location hole and positioning screw hole Fixed connection.

Wherein, vertical coarse adjustment mechanism is additionally provided on the inside of translation substrate 40, the vertical coarse adjustment mechanism includes along translation base One vertical coarse adjustment substrate 44 of 40 medial surface of plate fitting setting, (orientation describes in detection case in vertical 44 outside of coarse adjustment substrate Outside direction is interior exterior orientation description basis) it is provided with one and slides vertically with protrusion and this is leaned on to slide vertically and can vertically be slided with protrusion 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 that (position limiting structure can be a circle along perpendicular when implementation for limiting the position limiting structure that vertical coarse adjustment screw rod 45 moves axially 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.

Wherein, vertical fine-tuning mechanism is additionally provided on vertical coarse adjustment substrate 44, vertical fine-tuning mechanism includes one and vertically sets 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 installation protrusion 47 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 The position limiting structure being axially moveable for limiting vertical accurate adjustment screw rod 46, vertical accurate adjustment are additionally provided between 46 and installation protrusion 47 46 lower thread of screw rod cooperates in a horizontally disposed vertical accurate adjustment nut 48, and vertical accurate adjustment nut 48, which is arranged, is 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 To the circumferential direction for limiting vertical accurate adjustment nut 48 between 48 peripheral outer wall of accurate adjustment nut with vertically arranged concave-convex fit structure Rotation, the adjusting rod 34 is fixedly installed downwards in vertical 48 lower end of accurate adjustment nut.

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, limit 49 outer surface of guide sleeve is provided with wrom tooth and forms deflection adjusting worm gear, deflects adjusting worm gear Be mounted 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 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, the handle for using worm screw outer end can be adjusted by rotational deflection, 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, the inspection for determining probe can be adjusted more accurately Range is surveyed to ensure detection accuracy, and can also realize that detection 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 by the self-locking function of worm and gear to lead screw spiral shell 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.It is simple with structure, reliable and stable feature easy to adjust.

Claims

1. a kind of Ndt Methods For Steel Tubes, steel tube flaw detection is realized using the probe being set near steel tube surface in this method, it is special Sign is, fixed using popping one's head in this method, and the mode that steel pipe spirally advances realizes that steel tube surface is detected a flaw.

2. Ndt Methods For Steel Tubes as described in claim 1, which is characterized in that realized using steel tube flaw detection system below, steel Pipe fault detection system includes steel pipe transmission device for driving steel pipe to move in the axial direction and is arranged in steel pipe motion path Steel pipe defectoscope；The steel pipe defectoscope includes detection case, side plate of the detection case along the front and back side of steel pipe direction of advance On respectively opened up a through-hole, a set of flaw detection mechanism is respectively installed, flaw detection mechanism has one before and after detection case on the side plate of side Flaw detection probe inside detection case, flaw detection are fixed on the lower end of a vertically arranged adjusting rod, adjusting rod with probe Upper end is mounted on detection case side plate, and the probe of two flaw detection mechanisms is located at two sides and the face steel pipe of steel pipe progress path Progress path setting；

3. Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that be additionally provided with probe on detection case side plate and adjust dress It sets, probe regulating device includes a translation adjustment mechanism, and the translation adjustment mechanism includes one vertically arranged and be fixed on Hanging plate above detection case side plate, medial surface, which is vertically bonded, on hanging plate is provided with translation substrate, has one on the outside of translation substrate A outside translation protrusion simultaneously limits the horizontal sliding slot cooperated on hanging plate with protrusion by being translatable horizontally slidablely Interior, translation adjustment mechanism further includes a translation adjusting screw rod, and translation adjusting screw rod is parallel to vertical plane where corresponding side plate And it is horizontally disposed, translation adjusting screw rod inner end screw thread is screwed in translation in the upper horizontally disposed screw hole of protrusion, and translation adjusts spiral shell Bar outer end is rotationally pierced by hanging plate and handle is arranged, and being translatable between adjusting screw rod and hanging plate to have adjusts spiral shell for limiting translation The position limiting structure of bar axial movement；Adjusting rod upper end is mounted on translation substrate.

4. Ndt Methods For Steel Tubes as claimed in claim 3, which is characterized in that outside hanging plate lower inside surface and corresponding side plate top Side is affixed setting, and hanging plate lower part is provided with positioning screw hole along perpendicular to side plate direction, be provided with above positioning screw hole one section with Positioning screw hole is the arc positioning hole in the center of circle, and it is real across side plate to be provided with bolt for respective grafting in arc positioning hole and positioning screw hole Existing side plate is fixedly connected with hanging plate.

5. Ndt Methods For Steel Tubes as claimed in claim 3, which is characterized in that be additionally provided with vertical coarse adjustment machine on the inside of translation substrate Structure, the vertical coarse adjustment mechanism include a vertical coarse adjustment substrate along translation substrate medial surface fitting setting, vertical coarse adjustment base One is provided on the outside of plate to slide vertically with protrusion and slide vertically to limit with sliding vertically to cooperate with protrusion by this and be translatable In a vertical sliding slot on substrate, vertical coarse adjustment mechanism further includes a vertical coarse adjustment screw rod, vertical coarse adjustment screw rod lower end Screw 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 pierced by translation base Simultaneously handle is arranged in plate upper surface, is additionally provided between vertical coarse adjustment screw rod and translation substrate axial for limiting vertical coarse adjustment screw rod Mobile position limiting structure；Adjusting rod upper end is mounted on vertical coarse adjustment substrate.

6. Ndt Methods For Steel Tubes as claimed in claim 5, it is characterised in that be additionally provided with vertical accurate adjustment on vertical coarse adjustment substrate Mechanism, vertical fine-tuning mechanism include a vertically arranged vertical accurate adjustment screw rod, and vertical accurate adjustment screw rod top is rotatably mounted In the installation protrusion that vertical coarse adjustment substrate side laterally extends, installation protrusion setting is stretched out in vertical accurate adjustment screw rod upper end There is handle, is additionally provided with the limit being axially moveable for limiting vertical accurate adjustment screw rod between vertical accurate adjustment screw rod and installation protrusion Structure, in a horizontally disposed vertical accurate adjustment nut, vertical accurate adjustment nut is arranged for vertical accurate adjustment screw rod lower thread cooperation It is mounted in a horizontally disposed limit guide sleeve, limit guide sleeve is mounted on vertical coarse adjustment substrate, is limited guide sleeve inner wall and is erected Have vertically arranged concave-convex fit structure to limit circumferentially rotating for vertical accurate adjustment nut between accurate adjustment nut peripheral outer wall, The adjusting rod is fixedly installed downwards in vertical accurate adjustment nut lower end.

7. Ndt Methods For Steel Tubes as claimed in claim 6, which is characterized in that be additionally provided with horizontal deflection on vertical coarse adjustment substrate Regulating mechanism, the horizontal deflection regulating mechanism include the limit guide sleeve, and limit guide sleeve outer surface is provided with wrom tooth and forms snail Wheel, worm gear are mounted in a worm seat being fixed on vertical coarse adjustment substrate, and one is also equipped on worm seat and is horizontally disposed with Worm screw, worm and worm wheel be self-locking shape engagement, worm screw one end stretch out worm seat simultaneously handle is installed.

8. Ndt Methods For Steel Tubes as claimed in claim 2, which is characterized in that steel pipe advancement mechanism includes a pair of of advancing roller, preceding The frictional groove of concave arc is provided with into roller peripheral surface, the frictional groove of advancing roller peripheral surface, which faces, to be arranged and be used for steel Pipe clamp is set in the inner, and two advancing rollers connect each by a set of advance roller transmission mechanism and the same steel pipe advance motor drive It connects, steel pipe advance motor is for driving two advancing roller relative rotation to drive steel pipe to move ahead.

9. Ndt Methods For Steel Tubes as claimed in claim 8, which is characterized in that steel pipe advancement mechanism further includes a rectangular frame The advancing roller mounting rack of structure is rotatably mounted with two spaced advancing rollers arranged side by side in advancing roller mounting rack inner cavity Axis, plane is perpendicular to steel pipe motion path where two advance roll shafts, and advancing roller is mounted on advance roll shaft, advancing roller driver Structure includes the advance roll shaft, further include and advance roll shaft spaced jackshaft, jackshaft are installed in rotation on side by side It is respective in two sets advance roller transmission mechanisms on advancing roller mounting rack and the power intake with a stretching advancing roller mounting rack The power intake of jackshaft stretches out in the not ipsilateral of advancing roller mounting rack, and jackshaft is located at the part in advancing roller mounting rack It is sequentially connected by an external gear wheel and corresponding advance roll shaft, jackshaft is located on the power intake outside advancing roller mounting rack Worm gear is installed, worm gear and one, which are parallel to steel pipe motion path direction the worm screw of advancing roller mounting rack lateral surface are arranged in, to nibble It closes, one end of each comfortable same direction of the worm screw of two sets of advance roller transmission mechanisms is provided with gear and a power input gear is nibbled It closes, the power input gear is arranged perpendicular to steel pipe motion path and is installed in rotation on advancing roller mounting rack outer end face On, the advancing roller mounting rack 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 the space that steel pipe passes through, one end of power input gear and steel pipe advance are sequentially connected with motor.

10. Ndt Methods For Steel Tubes as claimed in claim 9, which is characterized in that the steel pipe rotary mechanism includes main transmission box Body, main transmission cabinet can be rotatably set guide sleeve along the rear and front end in steel pipe progress path direction, be fixedly connected between guide sleeve There is hollow spindle, the guide sleeve and hollow spindle inner cavity constitute steel pipe progress path, the rear and front end of the advancing roller mounting rack It is fixed on hollow spindle, rotation output wheel is further fixedly arranged on hollow spindle, rotate output wheel and steel pipe rotary is used Motor drive connection.