CN107870198A - Metal tube surface defects detection advance drive method - Google Patents
Metal tube surface defects detection advance drive method Download PDFInfo
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- CN107870198A CN107870198A CN201710734916.3A CN201710734916A CN107870198A CN 107870198 A CN107870198 A CN 107870198A CN 201710734916 A CN201710734916 A CN 201710734916A CN 107870198 A CN107870198 A CN 107870198A
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- advancing roller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/263—Surfaces
- G01N2291/2634—Surfaces cylindrical from outside
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/263—Surfaces
- G01N2291/2636—Surfaces cylindrical from inside
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Abstract
The invention discloses a kind of metal tube surface defects detection advance drive method, the advancing roller being connected in this method using a pair and metal tube advance with motor drives metal tube to be advanced axially relative, it is characterized in that, advancing roller is arranged in the advancing roller mounting bracket of a rectangular frame, then set metal tube to rotate in addition and use motor driven rectangular frame integral-rotation, realize the spiral advance transmission of metal tube.The present invention have implement simple in construction, compact in design, it is reliable and stable, can realize metal tube spirally advance transmission with improve metal tube probe inspected area, improve test reliability the advantages of.
Description
Technical field
The present invention relates to a kind of metal tube carrying out flaw detection technology；Advance more particularly to a kind of metal tube surface defects detection
Drive method.
Background technology
Metal tube is a kind of wide variety of important ferrous materials, due to various factors shadow in metal tube production process
Ring, the defects of longitudinal crack, transversal crack, folding, layering are commonly present on metal pipe-wall.If metal tube is defective to be made
Cause accident with central rupture, or even cause serious consequence, heavy economic losses even casualties may be caused, be that this is important
The metal tube of purposes is required for perfect non-destructive detecting device, and line flaw detection is carried out to metal tube.To ensure the metal tube that dispatches from the factory
Quality, existing flaw detection mode mainly has ultrasonic examination and the eddy current inspection method of inspection.Existing metal tube flaw detection line, often
Using ultrasonic inspection and eddy current inspection as single runtime, but with the raising of present metal tube testing requirements, often need
Two kinds of detections are completed to it, at this moment just need operating personnel by the metal tube blanking after the completion of passing through a kind of flaw detection, then be transferred to down
Road carrying out flaw detection, it is big work repetition, labor intensity to be present, examines cycle of operation length, it is inefficient the shortcomings that, turn into restriction metal
One factor of pipe carrying out flaw detection speed.
In existing metal tube defect-detecting equipment, either import equipment or home equipment, in natural pipe through roll forming
Afterwards, flaw detection link can just be entered.Because rolled metal pipe surface is inevitably improper in the presence of transporting, placing, and itself
Stress ageging deforms, or external factor influence etc., and these factors can cause to deform again before metal tube is detected a flaw, such as too late
When handle, the metal tube of deformation can be because of linearity or surface quality is bad is had an impact for flaw detection effect, it is impossible to ensures flaw detection
Stability.If clearing up not in time, flaw detection can be made a big impact, serious interference, or even meeting are produced during flaw detection
Produce the situation that wrong report is even failed to report.
Meanwhile ultrasonic automatic flaw detection apparatus, particularly the flaw detection industry in the metal tube part using ultrasound detection
Field has a wide range of applications, such as automatic flaw detection device for metal tube part etc..The online ultrasound of existing metal tube is visited
Wound, the general method using probe moisture film coupling carry out line flaw detection.When free of Automatic Ultrasonic Flaw Detector is carried out to metal tube, one
As be will probe be attached to outer surface of metal pipe with certain mechanical mechanism at a certain distance from, by adjusting the regulation on probe holder
System makes to leave certain gap between probe and metal tube, and water-filling forms coupling moisture film, is detected a flaw by ultrasound emission.
During actual automatic flaw detection, because metal tube is in the transmission process of detection, existing ultrasonic automatic flaw detection apparatus
Probe is typically to be directly anchored on probe bracket, and probe bracket is fixedly connected with flaw detection water tank, because metal tube model
More, probe is fixedly installed, and can not meet the flaw detection demand of various different model metal tubes.During metal tube flaw detection simultaneously,
Run into metal tube defective locations by when, easily and probe touching cause probe vibration and stick up turn, so as to cause flaw indication
The change of amplitude, if can not adjust in time, it can also influence the reliability and accuracy of flaw detection.For eddy current inspection, there is also phase
The problem of same.
It is that probe and metal tube diametrically move reality along metal tube during flaw detection in addition, for existing failure detector
Now detect a flaw, inspected area is limited, easily causes missing inspection.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：How a kind of implementation letter is provided
Single, stable transmission is reliable, can realize that metal tube spirally advances transmission to improve metal tube probe inspected area, improve flaw detection
The metal tube surface defects detection advance drive method of reliability.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of metal tube surface defects detection advance drive method, it is driven using a pair and metal tube advance with motor in this method
The advancing roller of connection drives metal tube to be advanced axially relative, it is characterised in that advancing roller is arranged to the advance of a rectangular frame
In roller mounting bracket, then set metal tube to rotate in addition and use motor driven rectangular frame integral-rotation, realize the spiral of metal tube
Formula, which is advanced, to be driven.
So, metal tube is rotated forward while so that before itself is in rotation when metal tube is aligned
Capable state, so that in the unit interval smoothing roll and metal tube contact areal extent increase, improve leveling effect and
Efficiency.Meanwhile metal tube by rotate it is forward in a manner of so that the inspected area popped one's head in metal tube failure detector is bigger, can be with
The flaw detection in metal tube circumference is realized by fixed probe, preferably avoids missing inspection, enhances the reliability and stably of flaw detection
Property so that more preferable flaw detection effect can be realized by less probe；Also have reliable transmission stable using this method simultaneously
The advantages of.
As optimization, this method employs following metal tube transmission device and realized, metal tube transmission device includes being used for
The metal tube advancement mechanism for driving metal tube to advance along axis, in addition to for driving what metal tube was rotated centered on axial line
Metal tube rotating mechanism；
Metal tube advancement mechanism includes a pair of advancing rollers, and advancing roller peripheral surface is provided with the frictional groove of concave arc, advancing roller
The frictional groove of peripheral surface, which faces, to be set and for by metal tube sandwiched, in the inner, two advancing rollers to be each via a set of advance
Roller transmission mechanism and same metal tube advance are connected with motor, and metal tube advance is used to drive two advancing rollers with motor
Rotate against to drive metal tube to move ahead；
Metal tube advancement mechanism also includes the advancing roller mounting bracket of a rectangular frame structure, and the advancing roller is arranged on advancing roller
In mounting bracket；
The metal tube rotating mechanism includes main transmission casing, rear and front end of the main transmission casing along metal tube progress path direction
Rotatably arranged with there is guide pin bushing, hollow spindle is fixedly connected between guide pin bushing, guide pin bushing and the hollow spindle inner chamber forms metal
Pipe progress path, the rear and front end of the advancing roller mounting bracket are fixed on hollow spindle, and also fixation is set on hollow spindle
Rotation output wheel is equipped with, output wheel is rotated and metal tube rotation is connected with motor.
So, metal tube drives by a pair of advancing rollers synchronously rotated against and realizes advance, and guarantee metal tube advances can
Lean on, and avoid force imbalance from causing metal tube deformation to better ensure that flaw detection effect to influence subsequently to detect a flaw.Wherein, rely on
Metal tube rotation motor drives hollow spindle to rotate by belt pulley, and then drives whole advancing roller mounting bracket rotation so that
Metal tube is driven while being driven advance to be rotated.Therefore the metal tube rotating mechanism can drive the same of metal tube rotation
When do not interfere with moving ahead for metal tube, there is simple in construction, reliable transmission, rotation output stably the advantages that.
As optimization, in metal tube advancement mechanism, between two are rotatably mounted with advancing roller mounting bracket inner chamber side by side
The plane where the advance roll shaft of setting, two advance roll shafts is arranged on advancing roller perpendicular to metal tube motion path, advancing roller
On axle, advance roller transmission mechanism includes the advance roll shaft, in addition to and advance roll shaft spaced jackshaft side by side, it is middle
Axle is installed in rotation on advancing roller mounting bracket and with the power intake of a stretching advancing roller mounting bracket, two sets of advance
The power intake of respective jackshaft stretches out in the not ipsilateral of advancing roller mounting bracket in roller transmission mechanism, and jackshaft is positioned at advance
Part in roller mounting bracket is connected by an external gear wheel and corresponding advance roll shaft, and jackshaft is located at advancing roller mounting bracket
Worm gear is installed, worm gear and one are arranged on advancing roller installation parallel to metal tube motion path direction on outer power intake
The worm engaging of frame lateral surface, one end of each comfortable equidirectional of worm screw of two sets of advance roller transmission mechanisms are provided with gear and one
Individual power input gear engagement, the power input gear is before the setting of metal tube motion path and being installed in rotation on
Enter on roller mounting bracket outer face, rear and front end end face and power of the advancing roller mounting bracket along metal tube motion path direction
The space passed through for metal tube is left in the middle part of input gear, one end of power input gear and metal tube advance are driven with motor
Connection.
So metal tube advancement mechanism, same metal tube can be relied on to advance with electronic while two advancing rollers of drive
Relative synchronization rotates, and the transmission of metal tube is better achieved.Metal tube advancement mechanism itself has simple in construction simultaneously, and layout is skilful
It is wonderful compact, the advantages that reliable transmission.
Further, one end of power input gear is connected by belt and metal tube advance with motor, is so tied
Structure is simple and reliable transmission.Further, metal tube advance electricity consumption machine is located on the bottom plate below advancing roller mounting bracket, so ties
Structure is simple and conveniently installs and power transmission.
As optimization, metal tube frictional force adjustment mechanism, the metal pipe friction are additionally provided with metal tube advancement mechanism
Power adjustment mechanism includes spaced a pair of lever drives plate arranged side by side, plane and metal tube direction of advance where lever drive plate
Parallel, lever drive plate is installed in rotation on described in same root on jackshaft, and lever drive plate is located in advancing roller mounting bracket
One end a piece advance roll shaft is installed and forms regulation advance roll shaft, it is laterally solid between two lever drive plate rear ends
Surely one piece of adjustable plate is connected with, the adjustment hole of a bar shaped is provided with adjustable plate along metal tube direction of advance, is hung down in adjustment hole
A regulating bolt directly is provided with, regulating bolt one end is fixed on advancing roller mounting bracket, and regulating bolt is located at the upper of adjustable plate
Lower surface is respectively connected with a location nut.
So, position of the regulation adjustable plate in regulating bolt can be relied on, and then by the rotational band of lever drive plate
Compression of the regulation with the advancing roller realization on advance roll shaft to metal tube is moved, and then is realized to metal tube frictional force size
Adjust, adjusting position is transferred to by advancing roller mounting bracket external position using lever drive plate in the structure, more convenient regulation
Operate and laborsaving, while lever drive plate makes it not influence advancing roller driver during adjusting using jackshaft as axis of rotation
The drive mechanism of structure；Therefore with the advantages that simple in construction, regulation is reliable convenient and swift laborsaving.Meanwhile the structure can also facilitate
Adjustment is realized to be driven to the compression of different size model metal tube.
Further, the rotation output wheel is belt pulley and connected by belt mechanism and the transmission of metal tube rotation motor
Connect；Make its simple in construction, cost is cheap, beneficial to implement and cost it is cheap.Yet further, the metal tube rotation is set with motor
It is placed in below main transmission casing and is set up in parallel with metal tube advance with motor, makes its compact-sized, easy for installation, transmission can
Lean on.
In summary, the present invention, which has, implements simple in construction, compact in design, reliable and stable, can realize metal tube spiral
Formula advance transmission with improve metal tube probe inspected area, improve test reliability the advantages of.
Brief description of the drawings
Fig. 1 is a kind of structural representation of metal tube fault detection system；This metal tube fault detection system using when employ this hair
Bright method realizes the advance transmission of metal tube.State is splitted with aobvious in metal tube feed straightening device part for regulation side plate in figure
Show internal structure.
Fig. 2 is the top view of the metal tube feed straightening device in Fig. 1.
Fig. 3 is the structural representation of smoothing roll governor motion in Fig. 2.
Fig. 4 is the attachment structure schematic diagram of benchmark smoothing roll and benchmark side plate in Fig. 2,（A benchmark is only shown in figure
Use smoothing roll）.
Fig. 5 is the dimensional structure diagram of metal tube transmission device in Fig. 1,（Location nut and regulation spiral shell are eliminated in figure
Bolt）.
Fig. 6 is that Fig. 5 rotates the view after an angle.
Fig. 7 is the front view of metal tube failure detector in Fig. 1,（Bolt is eliminated in figure）.
Fig. 8 is that Fig. 7 is rotated to the structural representation after an angle.
Fig. 9 is that Fig. 7 is rotated to the structural representation after another angle.
Figure 10 is the vertical cross-sectional of metal tube failure detector.
Embodiment
The present invention is made into one with reference to a kind of the metal tube fault detection system and its accompanying drawing that can realize the inventive method
The detailed description of step.
During specific implementation：As shown in Figures 1 to 10.
A kind of metal tube fault detection system, including bottom plate, it is provided with bottom plate for driving metal tube to move in the axial direction
Metal tube transmission device 1 and the metal tube failure detector 2 that is arranged on metal tube motion path, in addition to be arranged on bottom plate
Metal tube feed straightening device 3, metal tube feed straightening device 3 is arranged at metal tube transmission device feed end and for realizing
The aligning of metal tube.
So, feed and detect a flaw again after first being aligned to metal tube, can preferably avoid, metal tube becomes because of itself
Shape causes linearity or surface quality bad for being influenceed caused by flaw detection effect, improves the accuracy and reliability of flaw detection.
Wherein, metal tube feed straightening device 3 includes the smoothing roll 4 being arranged in pairs, and the peripheral surface of smoothing roll 4 is in middle part
Recessed arc, two smoothing rolls 4 are arranged in the left and right directions both sides of metal tube motion path in each pair smoothing roll 4, and two are rectified
The axial line of straight roller 4 misplaces and is obliquely installed up and down along the metal tube direction of motion so that two smoothing rolls 4 are each and metal tube surface
Form two symmetrical spiral linear contact lays.
So, two symmetrical spiral linear contact lays are formed and realize aligning with smoothing roll during metal tube advances, therefore are only needed
A pair of smoothing rolls are that the aligning on the segment length direction of metal tube one can be achieved, and stress balance, simple in construction and leveling effect are good.
Preferably selection is that smoothing roll and metal tube surface contact the every helix to be formed and rotate up 180 in metal tube surface week
Spend scope；The helix of such a pair of smoothing rolls is upwardly formed 360 encirclements in metal tube whole week just, it is ensured that metal tube surface
In the circumferential by the straightening force of equilibrium, metal pipe outer wall by the smoothing roll of both sides simultaneously to metal tube center position rolling extrusion,
The tube wall of surface irregularity is flattened, ensures to can also ensure that week while the leveling effect on metal tube whole length direction
Upward rounding off effect, its aligning and rounding off effect is reached optimal, improve metal tube bending situation and surface defect, Jin Ergeng
Ensure the reliability subsequently detected a flaw well.
Wherein, metal tube feed straightening device 3 includes vertically being oppositely arranged on one at left and right sides of metal tube motion path
Block benchmark side plate 5 and one piece regulation side plate 6, benchmark side plate 5 and regulation side plate 6 along metal tube motion path direction set and mutually
It is parallel；The medial surface of benchmark side plate 5 is fixedly installed a row smoothing roll bottom plate 7 and the row smoothing roll along metal tube motion path direction
The smoothing roll installed on bottom plate 7 forms benchmark smoothing roll, adjusts the medial surface of side plate 6 and benchmark is provided with one with smoothing roll face
Smoothing roll governor motion, smoothing roll governor motion face gold are respectively arranged with row smoothing roll bottom plate 7 and the row smoothing roll bottom plate 7
The front end of category pipe is provided with smoothing roll 4 and forms regulation smoothing roll, and benchmark is set in pairs one by one with smoothing roll and regulation with smoothing roll
Put and the compression of metal tube aligned for realizing, smoothing roll governor motion be used to changing regulation smoothing roll and metal tube away from
From.
So, by smoothing roll governor motion, compression straightening force that can be with Primary regulation each pair smoothing roll to metal tube makes
It is incremented by successively along metal tube direction of advance that straightening force must be compressed, metal tube is progressively repeatedly extruded in feed straightening device
Aligning, improves final leveling effect, and then better ensure that the reliability subsequently detected a flaw.The benchmark of metal tube side, which is used, simultaneously rectifys
Straight roller, it can better ensure that metal tube center line is consistent with motion path as the positioning datum of regulation, ensure metal tube most
Linearity after aligning eventually.Preferably selection is the contact of benchmark smoothing roll and metal tube, along the metal tube direction of motion
Setting incremented by successively from small to large.It can so better ensure that each pair smoothing roll compresses straightening force and is adjusted to move along metal tube
After direction increases successively, its metal tube center line is still consistent with motion path；Better ensure that leveling effect.
Wherein, benchmark is corresponded on the benchmark side plate 5 smoothing roll is provided with intermeshing active oblique gear 8 and passive
Helical gear 9, the metal tube advance in the active oblique gear 8 and metal tube transmission device 1 are connected with motor, described passive
Helical gear 9 and benchmark are fixedly and coaxially connected with smoothing roll.
So, benchmark smoothing roll relies on the motor for being used to drive metal tube to advance in metal tube transmission device actively to revolve again
Turn to force in metal tube, actively metal tube is exerted a force, metal tube leveling effect can be better ensured that.Using benchmark smoothing roll
It is connected with motor, it is ensured that the stability and reliability of transmission.
Wherein, metal tube feed straightening device 3 includes an aligning case, and aligning case is located at metal tube including vertically arranged
The two blocks of side plates and the two end plates 10 positioned at metal tube motion path direction of motion path left and right directions, two blocks of side plates and two pieces
End plate surrounds rectangular frame and is fixed on bottom plate, and the opening passed through for metal tube, two blocks of side plates are offered in the middle part of two end plates
Form the benchmark side plate 5 and regulation side plate 6.
So, case is aligned as an entirety, can be better ensured that smoothing roll and be aligned the installation of pipe governor motion,
Ensure the mutual alignment relation between smoothing roll, better ensure that leveling effect.
Wherein, also laterally it is fixedly connected between two blocks of side plates and is provided with transverse reinforced bar.So can preferably it improve strong
Straight case intensity, ensure that the intensity that each pair smoothing roll mutually exerts a force meets leveling effect enough.
Wherein, two sections of relative regulation arcuate sockets 9 ' are provided with smoothing roll bottom plate 7, two sections of regulations are based on arcuate socket
The same center of circle is set and the home position horizontal face upper straightening roll center of smoothing roll bottom plate 7 is set, on side plate respectively
Corresponding two sections of regulations are provided with bolt with arcuate socket and pass regulation arcuate socket 9 ' and by nut realization fixation.
So, two sections of regulation arcuate sockets can be relied on, change the setting angle of smoothing roll bottom plate, due to smoothing roll and gold
Category pipe is that the mode that spiral linear contact lay compresses compresses regulation, therefore can change smoothing roll along smoothing roll center rotating and straightening roller
End can realize the adjustment to smoothing roll thrust to the thrust size of metal tube.Especially for benchmark side plate
On benchmark smoothing roll, due to need as compress regulation benchmark, therefore its apart from the far and near position of metal tube once setting
After can not change adjustment, therefore when using causing straightening force to reduce after a period of time smoothing roll surface abrasion, leveling effect can not
It is guaranteed.The smoothing roll that now just can only more renew；But after the mounting structure for employing the regulation arcuate socket, work as reference side
After benchmark smoothing roll surface abrasion on plate causes straightening force to reduce, it can be rectified by changing the raising of smoothing roll setting angle
Straight roller can extend the service life of smoothing roll to a certain extent to the thrust of metal tube, dramatically saves on and be produced into
This.
Wherein, smoothing roll bottom plate 7 is circular slab, and the circular slab center of circle and regulation identical, the aligning that with arcuate socket corresponds to the center of circle
It is provided with angle scale 11 on side plate on the outside of the upper end of roller bottom plate 7, face angle scale 11 is set angled on smoothing roll bottom plate 7
Cursor line.
When so needing to rotate regulation smoothing roll bottom plate angle, preferably can accurately it be adjusted according to angle scale required
Angular dimension.
Wherein, the smoothing roll governor motion, including smoothing 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, the middle part of round platform 12 are set along axial line through round platform 12 and smoothing roll bottom plate 7
There is a through hole, through hole outer end is coaxial in through hole reduced diameter section to set with one section of reduced diameter section and inner with one section of enlarged diameter section
To put and be rotatably engaged an adjusting rod 13, the outer end of adjusting rod 13 stretches out round platform 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
End in diameter segment axially slidably with a roller seat connecting cylinder 15 is connected, and through hole enlarged diameter section connects 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 remote
One end of through hole is provided for installing the roller seat 16 of smoothing roll.
So, regulation handle is rotated, the rotation of adjusting rod can be relied on to drive roller seat connecting cylinder to do flexible fortune along its axial direction
It is dynamic, and then drive roller seat and smoothing roll thereon toward face metal tube direction closer or far from and then realizing and compressed to smoothing roll
The regulation of power size.With the advantages that simple in construction, easy to adjust quick reliable.
Wherein, the axial limit structure between adjusting rod 13 and through hole reduced diameter section is by the surface of adjusting rod 13 and through-hole wall
Between a circle in circumference it is raised and groove coordinates to obtain.With the characteristics of simple in construction, spacing reliable.
Wherein, the circumferential position limiting structure between through hole enlarged diameter section and roller seat connecting cylinder 15 by the surface of roller seat connecting cylinder 15 and
A projection and groove between through-hole wall vertically coordinate to obtain.With the characteristics of simple in construction, spacing reliable.
Wherein, also extended vertically through in the peripheral surface of round platform 12 and be connected with a fastening bolt, fastening bolt is inner be used for and
Adjusting rod 13 contacts realization and is fixed.So, after regulation handle rotation regulation is rotated, fastening bolt can be relied on real
Now position locked, prevent from loosening.
Wherein, metal tube transmission device 1 includes being used to drive the metal tube advancement mechanism that metal tube advances along axis, also wraps
Include the metal tube rotating mechanism for driving metal tube to be rotated centered on axial line.
So, metal tube is rotated forward while so that before itself is in rotation when metal tube is aligned
Capable state, so that in the unit interval smoothing roll and metal tube contact areal extent increase, improve leveling effect and
Efficiency.Meanwhile metal tube by rotate it is forward in a manner of so that the inspected area popped one's head in metal tube failure detector is bigger, can be with
The flaw detection in metal tube circumference is realized by fixed probe, preferably avoids missing inspection, enhances the reliability and stably of flaw detection
Property so that more preferable flaw detection effect can be realized by less probe.
Wherein, metal tube advancement mechanism includes a pair of advancing rollers 17, and the peripheral surface of advancing roller 17 is provided with concave arc
Frictional groove, the frictional groove of the peripheral surface of advancing roller 17, which faces, to be set and is used for metal tube sandwiched in the inner, two advancing rollers
17 are connected each via a set of advance roller transmission mechanism and same metal tube advance motor 18, metal tube advance electricity consumption
Machine is used to drive two advancing rollers 17 to rotate against to drive metal tube to move ahead.
So, metal tube drives by a pair of advancing rollers synchronously rotated against and realizes advance, and guarantee metal tube advances can
Lean on, and avoid force imbalance from causing metal tube deformation to better ensure that flaw detection effect to influence subsequently to detect a flaw.
Wherein, metal tube advancement mechanism also includes the advancing roller mounting bracket 19 of a rectangular frame structure, advancing roller installation
Two spaced advance roll shafts 20 arranged side by side are rotatably mounted with the inner chamber of frame 19, two place planes of advance roll shaft 20 are hung down
Directly it is arranged in metal tube motion path, advancing roller 17 on advance roll shaft 20, advance roller transmission mechanism includes the advance roll shaft
20, in addition to and the spaced jackshaft 21 side by side of advance roll shaft 20, jackshaft 21 be installed in rotation on advancing roller installation
On frame 19 and with a power intake for stretching out advancing roller mounting bracket 19, respective jackshaft in two sets of advance roller transmission mechanisms
21 power intake stretches out in the not ipsilateral of advancing roller mounting bracket 19, and jackshaft is located at the part in advancing roller mounting bracket 19
It is connected by an external gear wheel and corresponding advance roll shaft 20, the power that jackshaft 21 is located at outside advancing roller mounting bracket 19 is defeated
Enter and metal tube advance worm gear 22 is installed on end, metal tube advance is with worm gear 22 and one parallel to metal tube motion path side
Advance to the metal tube for being arranged on the lateral surface of advancing roller mounting bracket 19 and engaged with worm screw 23, the metal of two sets of advance roller transmission mechanisms
One end of each comfortable equidirectional of worm screw 23 is provided with gear 24 for pipe advance and a power input gear 25 engages, described dynamic
Power input gear 25 sets and is installed in rotation on the outer face of advancing roller mounting bracket 19, institute perpendicular to metal tube motion path
Rear and front end end face and power input gear 25 middle part of the advancing roller mounting bracket 19 along metal tube motion path direction is stated to stay
There is the space passed through for metal tube, one end of power input gear 25 and metal tube advance motor 18 are connected.
So metal tube advancement mechanism, same metal tube can be relied on to advance with electronic while two advancing rollers of drive
Relative synchronization rotates, and the transmission of metal tube is better achieved.Metal tube advancement mechanism itself has simple in construction simultaneously, and layout is skilful
It is wonderful compact, the advantages that reliable transmission.Further, one end of power input gear is passed by belt and metal tube advance with motor
Dynamic connection, so simple in construction and reliable transmission, further, metal tube advance electricity consumption machine are located at below advancing roller mounting bracket
On bottom plate, so simple in construction and convenient installation and power transmission.
Wherein, metal tube frictional force adjustment mechanism is additionally provided with metal tube advancement mechanism, the metal tube frictional force is adjusted
Complete machine structure includes spaced a pair of lever drives plate 26 arranged side by side, the place plane of lever drive plate 26 and metal tube direction of advance
Parallel, lever drive plate 26 is installed in rotation on described in same root on jackshaft 21, and lever drive plate 26 is located at advancing roller peace
Shelve one end in 19 a piece advance roll shaft 20 is installed and forms regulation advance roll shaft, after two lever drive plates 26
One piece of adjustable plate 27 is laterally fixedly connected between end, is provided with the tune of a bar shaped on adjustable plate 27 along metal tube direction of advance
Knothole, a regulating bolt is vertically installed with adjustment hole, regulating bolt one end is fixed on advancing roller mounting bracket 19, adjusts spiral shell
The upper and lower surface that bolt is located at adjustable plate is respectively connected with a location nut（Regulating bolt and location nut are not shown in figure）.
So, position of the regulation adjustable plate in regulating bolt can be relied on, and then by the rotational band of lever drive plate
Compression of the regulation with the advancing roller realization on advance roll shaft to metal tube is moved, and then is realized to metal tube frictional force size
Adjust, adjusting position is transferred to by advancing roller mounting bracket external position using lever drive plate in the structure, more convenient regulation
Operate and laborsaving, while lever drive plate makes it not influence advancing roller driver during adjusting using jackshaft as axis of rotation
The drive mechanism of structure；Therefore with the advantages that simple in construction, regulation is reliable convenient and swift laborsaving.Meanwhile the structure can also facilitate
Adjustment is realized to be driven to the compression of different size model metal tube.
Wherein, the metal tube rotating mechanism includes main transmission casing 28, and main transmission casing 28 is along metal tube progress path
The rear and front end in direction is fixedly connected with hollow spindle 30, the hollow master rotatably arranged with there is guide pin bushing 29 between guide pin bushing 29
The inner chamber of axle 30 forms metal tube progress path, and the rear and front end of the advancing roller mounting bracket 19 is fixed on hollow spindle 30
On, rotation output wheel 31 is further fixedly arranged on hollow spindle 30, output wheel 31 and metal tube rotation is rotated and is driven company with motor
Connect.
So, metal tube rotation motor can be relied on to drive hollow spindle to rotate by belt pulley, and then driven whole
Advancing roller mounting bracket is rotated so that metal tube is driven while being driven advance to be rotated.Therefore the metal tube rotating mechanism
Moving ahead for metal tube is not interfered with while metal tube can be driven to rotate, there is simple in construction, reliable transmission, rotation output is surely
The advantages that determining.
Wherein, the rotation output wheel 31 is belt pulley and connected by belt mechanism and the transmission of metal tube rotation motor
Connect；Make its simple in construction, cost is cheap, beneficial to implement and cost it is cheap.Yet further, the metal tube rotation is set with motor
It is placed in below main transmission casing and is set up in parallel with metal tube advance with motor, makes its compact-sized, easy for installation, transmission can
Lean on.
Wherein, the metal tube failure detector 2 includes detection case 32, front and rear side of the detection case 32 along metal tube direction of advance
Side plate on respectively opened up a through hole, a set of flaw detection mechanism is respectively installed, mechanism of detecting a flaw before and after detection case 32 on the side plate of side
Flaw detection probe 33 with one inside detection case 32, flaw detection probe 33 are fixed on a vertically arranged adjusting rod
34 lower end, the upper end of adjusting rod 34 be arranged on the side plate of detection case 32 on, two flaw detection mechanisms probe respectively be located at metal tube before
The both sides of inbound path and the setting of face metal tube progress path.
So, in metal tube failure detector, it is threadingly advanced using right each one probe of setting of a first from left, then complexed metal pipe
Mode, it is fixed using probe and metal tube is detected a flaw by the way of being threadingly advanced, simpler structure can be leaned on real well
Now to the full surface inspection of metal tube, flaw detection efficiency is improved, avoids missing inspection, improves test reliability.
Wherein, metal tube failure detector is a metal tube flaw detection dress spaced apart two along metal tube direction of advance
Probe in putting is ultrasonic detecting probe, and the probe in another metal tube failure detector is eddy current probe；Set super
In the metal tube failure detector of acoustic detection probe, it is provided with detection case through hole for cooperatively forming dynamic sealing with metal tube
Flexible sliding sleeve 35, the detection case is interior to realize that ultrasonic wave moisture film method is detected a flaw filled with detection liquid, and the detection case lower end is arranged at a detection
In liquid returnable 36.
So, combine EDDY CURRENT using the flaw detection of ultrasonic wave moisture film method to detect a flaw, two kinds of flaw detection modes are combined, more
Missing inspection is effectively prevented from, further improves 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 metal tube surface contact.
Wherein, set in the metal tube failure detector of ultrasonic detecting probe, glass is additionally provided with the side of detection case 32
Glass observation window 37；Conveniently observation it can detect liquid liquid level position.Yet further, vertical scale is set on glass window 37
Line, liquid level place height and position can be conveniently accurately acquired to ensure flaw detection effect.
Wherein, set in the metal tube failure detector of ultrasonic detecting probe, the top of detection case 32 is provided with input duct
（Do not shown in figure）, input duct top is provided with heating vessel（Do not shown in figure）, heating vessel passes through water pump
It is connected with reflux line with detection liquid returnable.
In this manner it is achieved that the recycling of detection liquid.Simultaneously importantly, detection liquid holds by liquid heating
Device is passed back into detection case again after heating, and can be eliminated the micro-bubble in detection liquid well, greatly be avoided detecting
Exist in detection liquid in case and produce micro-bubble and influence Detection results, while further combined with metal tube for before rotary
Enter, the rotation of metal tube can be relied on to avoid the bubble of metal tube surface from adhering to, therefore drastically increase flaw detection accuracy.
Wherein, set in the metal tube failure detector of ultrasonic detecting probe, the upper side of detection case 32 is provided with one
Overflow launder 38, the return side of overflow launder 38 and the inner chamber of detection case 32 connect, and the input duct lower end is arranged in overflow launder.This
Sample, overflow channel can be relied on, preferably avoid the liquid fluctuating in detection case and preferably avoid the generation of bubble, with
Ensure more preferable Detection results.
Wherein, probe regulating device is additionally provided with detection case side plate, probe regulating device includes a translation and adjusts machine
Structure, the translation adjustment mechanism include a hanging plate 39 that is vertically arranged and being fixed on above the side plate of detection case 32, on hanging plate 39
Medial surface, which is vertically bonded, is provided with translation substrate 40, and the outside of translation substrate 40 has an outside translation projection 41 and leaned on
Translation uses projection 41 horizontally slidablely in a horizontal chute of the spacing cooperation on hanging plate 39, and translation adjustment mechanism also wraps
A translation adjusting screw rod 42 is included, translation adjusting screw rod 42 is parallel to vertical plane where corresponding side plate and horizontally disposed, translation
42 inner screw thread of adjusting screw rod is screwed in translation projection 41 in horizontally disposed screw, and the outer end of translation adjusting screw rod 42 can turn
Hanging plate 39 is passed dynamicly and translation adjusting screw rod handle 43 is set, and is had between translation adjusting screw rod 42 and hanging plate 39 and is used to limit
The position limiting structure that translation adjusting screw rod 42 processed moves axially（The position limiting structure can be that a circle is all along translation adjusting screw rod during implementation
The boss and respective slot set up obtains）；The upper end of adjusting rod 34 is arranged on translation substrate 40.
So, the handle of rotary translational movement adjusting screw rod outer end can be relied on, realizes the translation regulation to translation substrate, and then
Drive probe close in the horizontal direction or away from metal tube by adjusting rod, preferably to adjust the detection range of probe with true
Accuracy of detection is protected, and can also realize that test position is adjusted according to metal tube model size.It is easy to adjust steady with simple in construction
The characteristics of fixed reliable.
Wherein, locking mechanism is additionally provided between translation substrate 40 and hanging plate 39, locking mechanism includes being located at translation substrate
The dovetail groove in the horizontal direction that 40 lateral surfaces are recessed, the medial surface of hanging plate 39, which corresponds to dovetail groove and coordinated horizontally slidablely, to be set
Swallow-tail form projection is equipped with, locking mechanism also includes vertically arranged locking bolt（Do not shown in figure）, locking bolt is from translation base
The upper end face of plate 40 vertically through translation substrate 40 and is connected to realization abutting locking in swallow-tail form projection.So, can be flat
Dynamic realized between substrate and hanging plate after Level tune is locked.
Wherein, the lower inside surface of hanging plate 39 and corresponding side plate upper outside face are affixed settings, the bottom of hanging plate 39 edge perpendicular to
Side plate direction is provided with positioning screw hole, and one section of arc positioning hole using positioning screw hole as the center of circle, arc are provided with above positioning screw hole
Respective grafting is provided with bolt in shape positioning hole and positioning screw hole（Do not shown in figure）Realize that side plate and hanging plate 39 are solid through side plate
Fixed connection.
So, hanging plate is realized using simple structure and corresponds to being fixedly connected for side plate, while the attachment structure may be used also
Vertical deflection regulation is carried out as the center of circle to hanging plate using positioning screw hole to facilitate, and then can be realized to the probe of adjusting rod lower end
Vertical deflection regulation, ensures accuracy of detection preferably to adjust the detection range of probe, and can also be according to metal tube model
Size realizes that test position is adjusted.
Wherein, the inner side of translation substrate 40 is additionally provided with vertical coarse adjustment mechanism, and the vertical coarse adjustment mechanism is included along translation base
The vertical coarse adjustment substrate 44 that the fitting of the medial surface of plate 40 is set, the vertical outside of coarse adjustment substrate 44（Orientation is described with detection case
Outer direction is interior exterior orientation description basis）One is provided with to slide vertically with raised and slide vertically by this and can vertically be slided with projection
Dynamicly in a vertical chute of the spacing cooperation on translation substrate 40, vertical coarse adjustment mechanism also includes a vertical coarse adjustment spiral shell
Bar 45, the vertical lower end screw thread of coarse adjustment screw rod 45 are screwed in slide vertically and used in raised vertically arranged screw, vertical coarse adjustment spiral shell
The upper end of bar 45 rotationally passes translation upper surface of base plate and sets handle, 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 during implementation
The boss and respective slot set up to coarse adjustment screw rod week obtains）；The upper end of adjusting rod 34 is arranged on vertical coarse adjustment substrate 44.
Translation substrate is made up of two pieces of vertical fixed veneers side by side in present embodiment, an outer veneer be used to set and
The structure that hanging plate coordinates, another inner veneer are used for the structure set and vertical coarse adjustment substrate coordinates, so more convenient
The setting and installation of structure.
So, the handle for rotating vertical coarse adjustment screw rod upper end can be relied on, and then is realized to the first of adjusting rod upper-lower position
Successive step, and then drive probe vertically close or away from metal tube by adjusting rod, preferably to adjust probe
Detection range can also realize that test position is adjusted to ensure accuracy of detection according to metal tube model size.With structure letter
Singly, the characteristics of easy to adjust reliable and stable.
Wherein, vertical fine-tuning mechanism is additionally provided with vertical coarse adjustment substrate 44, vertical fine-tuning mechanism is vertically set including one
The vertical accurate adjustment screw rod 46 put, the vertical top of accurate adjustment screw rod 46 are installed in rotation on the vertical side of coarse adjustment substrate 44 and extended laterally
In the installation projection 47 gone out, the vertical upper end of accurate adjustment screw rod 46 stretches out installation projection 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 projection 47
The lower end screw thread of screw rod 46 coordinates in a horizontally disposed vertical accurate adjustment nut 48, and vertical accurate adjustment nut 48 is arranged installed in one
In individual horizontally disposed spacing guide pin bushing 49, spacing guide pin bushing 49 is arranged on vertical coarse adjustment substrate 44, the spacing inwall of guide pin bushing 49 and perpendicular
To between the peripheral outer wall of accurate adjustment nut 48 circumference of vertical accurate adjustment nut 48 is limited with vertically arranged concave-convex fit structure
Rotate, the adjusting rod 34 is fixedly installed downwards in the vertical lower end of accurate adjustment nut 48.
So, the handle for rotating vertical accurate adjustment screw rod upper end can be relied on, and then realizes the essence to adjusting rod upper-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 metal tube model size.With the characteristics of simple in construction, easy to adjust reliable and stable.
Wherein, horizontal deflection governor motion, the horizontal deflection governor motion bag are additionally provided with vertical coarse adjustment substrate 44
The spacing guide pin bushing 49 is included, the spacing outer surface of guide pin bushing 49 is provided with wrom tooth and forms deflection regulation worm gear, deflects regulation worm gear
In a worm seat 50 being fixed on vertical coarse adjustment substrate 44, be also equipped with worm seat 50 one it is horizontally disposed
Worm screw 51 is used in deflection regulation, and deflection regulation is that self-locking shape engages with worm screw 51 and deflection regulation with worm gear, and worm screw is used in deflection regulation
51 one end stretch out worm seat 50 and are provided with handle.
So, the handle of rotational deflection regulation worm screw outer end can be relied on, by the dynamic regulation of Worm Wheel System subband
The horizontal rotation of bar, and then drive probe to realize the adjustment of horizontal deflection position, it can more accurately adjust the inspection for determining probe
Scope is surveyed to ensure accuracy of detection, and can also realize that test position is adjusted according to metal tube model size.Meanwhile the structure is skilful
Worm Wheel System pair and screw-nut body are combined together wonderfully, realized by the auto-lock function of worm and gear to leading screw
The rotation of nut is spacing in nut body；Therefore rely on simple structure to realize adjusting rod simultaneously and move up and down regulation and from modulation
The function of section.With the characteristics of simple in construction, easy to adjust reliable and stable.
Claims (8)
1. a kind of metal tube surface defects detection advance drive method, passed in this method using a pair and metal tube advance with motor
The advancing roller of dynamic connection drives metal tube to be advanced axially relative, it is characterised in that before advancing roller is arranged at into a rectangular frame
Enter in roller mounting bracket, then set metal tube to rotate in addition and use motor driven rectangular frame integral-rotation, realize the spiral shell of metal tube
Rotating transmission of advancing.
2. metal tube surface defects detection advance drive method as claimed in claim 1, it is characterised in that employ following
Metal tube transmission device realizes that metal tube transmission device includes being used to drive the metal tube advance machine that metal tube advances along axis
Structure, in addition to for driving the metal tube rotating mechanism that metal tube is rotated centered on axial line；
Metal tube advancement mechanism includes a pair of advancing rollers, and advancing roller peripheral surface is provided with the frictional groove of concave arc, advancing roller
The frictional groove of peripheral surface, which faces, to be set and for by metal tube sandwiched, in the inner, two advancing rollers to be each via a set of advance
Roller transmission mechanism and same metal tube advance are connected with motor, and metal tube advance is used to drive two advancing rollers with motor
Rotate against to drive metal tube to move ahead；
Metal tube advancement mechanism also includes the advancing roller mounting bracket of a rectangular frame structure, and the advancing roller is arranged on advancing roller
In mounting bracket；
The metal tube rotating mechanism includes main transmission casing, rear and front end of the main transmission casing along metal tube progress path direction
Rotatably arranged with there is guide pin bushing, hollow spindle is fixedly connected between guide pin bushing, guide pin bushing and the hollow spindle inner chamber forms metal
Pipe progress path, the rear and front end of the advancing roller mounting bracket are fixed on hollow spindle, and also fixation is set on hollow spindle
Rotation output wheel is equipped with, output wheel is rotated and metal tube rotation is connected with motor.
3. metal tube surface defects detection advance drive method as claimed in claim 2, it is characterised in that metal tube advance machine
In structure, two spaced advance roll shafts arranged side by side, two advance roll shafts are rotatably mounted with advancing roller mounting bracket inner chamber
Perpendicular to metal tube motion path, advancing roller is arranged on advance roll shaft place plane, advance roller transmission mechanism include it is described before
Enter roll shaft, in addition to and advance roll shaft spaced jackshaft, jackshaft are installed in rotation on advancing roller mounting bracket side by side
Go up and there is the power intake of a stretching advancing roller mounting bracket, the power of respective jackshaft in two sets of advance roller transmission mechanisms
Input stretches out in the not ipsilateral of advancing roller mounting bracket, and the part that jackshaft is located in advancing roller mounting bracket passes through a pair of external tooths
Wheel and corresponding advance roll shaft are connected, and worm gear is provided with the power intake that jackshaft is located at outside advancing roller mounting bracket,
Worm gear and the worm engaging that advancing roller mounting bracket lateral surface is arranged on parallel to metal tube motion path direction, two sets of advances
One end of each comfortable equidirectional of worm screw of roller transmission mechanism is provided with gear and a power input gear engagement, the power
Input gear sets and is installed in rotation on advancing roller mounting bracket outer face, the advance perpendicular to metal tube motion path
Roller mounting bracket is left for metal tube in the middle part of the rear and front end end face and power input gear along metal tube motion path direction
The space passed through, one end of power input gear and metal tube advance are connected with motor.
4. metal tube surface defects detection advance drive method as claimed in claim 3, it is characterised in that power input gear
One end be connected by belt and metal tube advance with motor.
5. metal tube surface defects detection advance drive method as claimed in claim 3, it is characterised in that metal tube, which advances, to be used
Motor is located on the bottom plate below advancing roller mounting bracket.
6. metal tube surface defects detection advance drive method as claimed in claim 3, it is characterised in that metal tube advance machine
Metal tube frictional force adjustment mechanism is additionally provided with structure, the metal tube frictional force adjustment mechanism includes arranged side by side spaced one
To lever drive plate, plane where lever drive plate is parallel with metal tube direction of advance, and lever drive plate is installed in rotation on
Described in same root on jackshaft, one end that lever drive plate is located in advancing roller mounting bracket is provided with an advance roll shaft simultaneously
Regulation advance roll shaft is formed, is laterally fixedly connected with one piece of adjustable plate between two lever drive plate rear ends, edge on adjustable plate
Metal tube direction of advance is provided with the adjustment hole of a bar shaped, and a regulating bolt, regulating bolt are vertically installed with adjustment hole
One end is fixed on advancing roller mounting bracket, and the upper and lower surface that regulating bolt is located at adjustable plate is respectively connected with a location nut.
7. metal tube surface defects detection advance drive method as claimed in claim 2, it is characterised in that the rotation output
Take turns as belt pulley and be connected by belt mechanism and metal tube rotation with motor.
8. metal tube surface defects detection advance drive method as claimed in claim 2, it is characterised in that the metal tube rotation
Conversion motor is arranged at below main transmission casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734916.3A CN107870198B (en) | 2017-08-24 | 2017-08-24 | Forward transmission method for detecting surface defects of metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734916.3A CN107870198B (en) | 2017-08-24 | 2017-08-24 | Forward transmission method for detecting surface defects of metal pipe |
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| CN107870198A true CN107870198A (en) | 2018-04-03 |
| CN107870198B CN107870198B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710734916.3A Active CN107870198B (en) | 2017-08-24 | 2017-08-24 | Forward transmission method for detecting surface defects of metal pipe |
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| CN110031542A (en) * | 2019-04-26 | 2019-07-19 | 射阳县智能探伤设备有限公司 | A kind of magnaflux convenient for adjusting |
| CN110514356A (en) * | 2019-09-09 | 2019-11-29 | 乐绪枝 | A kind of oil pipeline crack detection equipment |
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|---|---|
| CN107870198B (en) | 2020-11-10 |
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Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: Baowu Teye Hangyan Technology Co.,Ltd. Address before: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee before: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. |
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Effective date of registration: 20211013 Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: CHONGQING IRON & STEEL (GROUP)Co.,Ltd. |