CN106442578A - Double-track portable pipeline digital weld detection device - Google Patents
Double-track portable pipeline digital weld detection device Download PDFInfo
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- CN106442578A CN106442578A CN201610693519.1A CN201610693519A CN106442578A CN 106442578 A CN106442578 A CN 106442578A CN 201610693519 A CN201610693519 A CN 201610693519A CN 106442578 A CN106442578 A CN 106442578A
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- ray
- imaging plate
- grip unit
- fixed
- driver element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
Abstract
The invention relates to a double-track portable pipeline digital weld detection device and mainly aims to solve the problems that an existing pipeline weld detection device is inconvenient to disassemble and assemble, a traveling foot and a track are easy to damage due to excessively heavy equipment and a degree of protecting the equipment is low. The double-track portable pipeline digital weld detection device is characterized by being formed after an imaging plate clamping unit, a driving unit, an X-ray clamping unit, a left connecting rod, a right connecting rod, a main track and an auxiliary track are connected, wherein the imaging plate clamping unit comprises an imaging plate rack, traveling wheels and an imaging plate protection frame; the driving unit comprises a speed reducer, a motor, a rear plate, a front plate, a handle, a chain wheel and traveling wheels; the speed reducer is fixed on the rear plate; the X-ray clamping unit comprises an X-ray fixing frame, an X-ray rack and the traveling wheels; the traveling wheels are respectively fixed on the X-ray rack by two bolts; the main track consists of a main track body and a chain; the auxiliary track is fixed with a pipeline by a bulge at the bottom and the auxiliary track and the pipeline are concentric; the driving unit is positioned between the imaging plate clamping unit and the X-ray clamping unit.
Description
Technical field
The present invention relates to a kind of pipe welding line detecting device being applied in oil gas transport field.
Background technology
Petroleum transportation pipeline once has an accident, and not only results in huge economic loss, and to society and environment also
Immeasurable harm can be caused.Its repair is not only difficult, and somewhat expensive.Infringement due to circular storage tank and pipeline
It is concentrated mainly in the infringement of weld seam, but owing to pipe welding line detecting is all being entered by more traditional manual inspection method always
OK, pipe welding line detecting is proposed a kind of can realize detecting the quick of mechanical automation and effective detection method and
Supporting device, and existing structure of the detecting device is complicated, is difficult to assembling and splits, and causes detection operating efficiency very low.With
When, detection the healthy of workman can be caused certain infringement again by the X-ray being applied in the detection.So developing one
Device improves the efficiency of pipe welding line detecting, reduces its danger and have extremely important realistic meaning.Set used by Xian
Standby generally exist installation inconvenience, dismounting inconvenience and the series of problems such as damage during detection.Domestic technology used is most
Detecting for tube wall outer rays, but device therefor being less reliable, flaw detection efficiency is low, has potential safety hazard.
Content of the invention
In order to solve the technical problem being previously mentioned in background technology, the present invention provides a kind of two-orbit portable pipe numeral
Changing detection device, this kind of device is connected by C-type beam and ensures relative position.This detection device can be to oil and gas pipes 360 °
Flaw detection, and realize defectoscope device and imaging plate device fast assembling-disassembling, play certain protection to road wheel and major and minor track and make
With improve the efficiency of existing pipe welding line detecting, be that existing pipe welding line detecting technology provides the light solution of accurately safety
Certainly scheme, is that the equipment such as defectoscope and imaging plate provides reliable protection.
The technical scheme is that：This kind of two-orbit portable pipe digitlization detection device, including imaging plate
Grip unit, driver element, X-ray grip unit, left connecting rod, right connecting rod, main orbit and secondary track, its unique distinction exists
In：
Described imaging plate grip unit includes imaging plate frame, road wheel and imaging plate fender bracket；Wherein imaging plate frame is whole
The body of individual imaging plate grip unit, all of part in this unit and structure are all installed on it；Imaging plate grip unit bag
Having contained eight road wheels, these road wheels all use two bolts to be fixed in imaging plate frame；On imaging plate fender bracket has
Hook and two quick fixation structures of lower hook, rise to the bait during connection and lower hook is respectively aligned to include the suitable for reading and end opening in imaging plate frame, inserts
Entering into, then the fixing hole on imaging plate fender bracket screws in one piece of bolt, it is achieved imaging plate fender bracket and imaging plate frame
Be relatively fixed；
Described driver element comprises decelerator, motor, back plate, header board, handle, sprocket wheel and road wheel；Wherein, whole driving is single
Unit comprises four road wheels, and two in these road wheels are fixed on header board, and other two is fixed on back plate；Decelerator is fixed on
Back plate, the input port being bolted to decelerator adopted by motor, and sprocket wheel is fixed on the output shaft of decelerator, thus realizes
Motor be rotated through decelerator after will export on sprocket wheel, make sprocket wheel rotate；The end of handle is leading screw, works as rotatable handle
When, itself and back plate geo-stationary, and header board is provided with screw, when the handle is rotated, header board seesaws along the leading screw of handle,
The distance of regulation front and rear panels, and front and rear panels respectively install a pair road wheel, will realize two when the handle is rotated to row
Distance between travelling wheel, to realize dismounting the purpose of driving means from main orbit；
Described X-ray grip unit includes X-ray fixed mount, X-ray frame and road wheel；Wherein, X-ray grip unit includes
Four road wheels, four road wheels are fixed in X-ray frame by two bolts respectively；X-ray fixed mount has four extensions
Hook and two X-ray fixing holes, X-ray frame has four hanging holes, and when X-ray fixed mount and X-ray frame are installed, X penetrates
Four hooks of line fixed mount insert in four hanging holes of X-ray frame respectively, then screw in bolt in fixing hole by X-ray
Fixed mount is fixed with X-ray frame；
Described main orbit is made up of main orbit and chain；Wherein main orbit and pipeline are coaxial, and use therebetween projection to carry out
Being relatively fixed, chain and main orbit welding are connected；Described secondary track is fixed by projection and the pipeline of bottom, and the two is same
The heart；
Driver element is positioned between imaging plate grip unit and X-ray grip unit, driver element and imaging plate grip unit it
Between use left connecting rod to be attached, wherein left connecting rod is arc rod-like structure, and two ends have bolt hole, left connecting rod
The bolt hole at two ends, left and right insert bolt respectively and be attached fixing with imaging plate grip unit and driver element respectively；Right
Connecting rod and left connecting rod have identical structure, and both sides have bolt hole equally, and the two ends, left and right of right connecting rod are inserted respectively
Bolt and be attached fixing with driver element and X-ray grip unit respectively；
It is whole that imaging plate grip unit, driver element, X-ray grip unit, left connecting rod and right connecting rod connect into an annular
Body；Main orbit and secondary track are two independent tracks, and it is relatively fixed with pipeline respectively, and imaging plate grip unit, driving are single
Unit, X-ray grip unit carry out the motion on circumferencial direction, driver element, X-ray grip unit and secondary rail all along main orbit
Road is simultaneously contactless, and the structure of imaging plate grip unit and driver element and X-ray grip unit simultaneously differ, and imaging plate clamping is single
Unit has 8 road wheels, and four is one group, totally two groups, is responsible for clamping main orbit, does along main orbit for one group of close main orbit
Circular motion, secondary track, near secondary track, is clamped by another group, and carries out circumferential movement along secondary track, and secondary track plays
Stablizing and booster action to imaging plate grip unit, secondary track and driver element, X-ray grip unit are contactless.
The present invention has the advantages that：First, this detection device has major and minor two tracks, wherein on main orbit
Installing chain, it can be used for carrying the driving force of whole device, and this and traditional detection device are identical, but at traditional pipe
Only having main orbit in road detection device, its imaging plate offsetting, on main orbit, presents the state of a kind of cantilever beam, surely
Qualitative very poor, the secondary track using in the present invention makes imaging plate two ends all be supported, and stability is greatly enhanced；Next, for
Driving means and the installation of main orbit, it is proposed that a kind of new mount scheme, by rotating threaded shaft handle realize driving means and
The fast assembling-disassembling of track, is greatly improved operating efficiency；Again, the installation for defectoscope, imaging plate and fixture provides a kind of new
The Fast Installation scheme of type, facilitates the dismounting of equipment, improves operating efficiency；Finally, the type of drive of device have employed engagement
Type of drive, rather than conventional friction driving way, show as chain and main orbit is connected, and relatively whole pipeline is static, drives
The driving wheel of device uses a sprocket wheel, and it is just meshed with the above-mentioned chain mentioned, is rotated by the output of decelerator and drives chain
Wheel rotates, thus realizes the engaged transmission of sprocket wheel and chain, because chain, main orbit and pipeline are geo-stationary, so sprocket wheel
Rotation whole device will be driven to do circumferential movement around pipeline, its more previous friction driving way can provide bigger
Driving force, the whole device of final stabilized driving is around pipeline circumferential movement.
Brief description：
Fig. 1 is the plan structure schematic diagram of patent of the present invention.
Fig. 2 is the three-dimensional structure schematic diagram of patent of the present invention.
Fig. 3 is imaging plate grip unit combining structure schematic diagram described in patent of the present invention.
Fig. 4 is the structural representation that imaging plate grip unit described in patent of the present invention is in released state.
Fig. 5 is the structural representation of X-ray grip unit described in patent of the present invention.
Fig. 6 is the structural representation of driver element.
1-imaging plate grip unit in figure, 2-driver element, 3-X ray grip unit, the left connecting rod of 4-, the right connection of 5-
Bar, 6-pipeline, 7-main orbit, the secondary track of 8-, 9-chain, 10-imaging plate frame, 11-road wheel, 12-imaging plate fender bracket, 13-
Rise to the bait, hook under 14-, 15-fixing hole, 16-is suitable for reading, 17-end opening, 18-X ray fixed mount, 19-X ray fixing hole, and 20-links up with,
21-hanging hole, 22-X ray frame, 23-motor, 24-decelerator, 25-back plate, 26-header board, 27-sprocket wheel, 28-handle.
Detailed description of the invention：
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, whole device is by imaging plate grip unit the 1st, driver element the 2nd, X-ray grip unit the 3rd, left connecting rod the 4th,
Right connecting rod the 5th, main orbit 7 and secondary track 8 form.Wherein driver element 2 by left connecting rod 4 and right connecting rod 5 respectively with become
As plate grip unit the 1st, X-ray grip unit 3 uses the mode of bearing pin to connect, produced by such driver element 2, circumference drives
, can carry out so that three does circumferential movement around pipeline for delivery to imaging plate grip unit 1 and X-ray grip unit 3
The action of weld seam detection.
As shown in Figure 3,4, imaging plate grip unit 1 includes imaging plate frame the 10th, road wheel 11 and imaging plate fender bracket 12.
Wherein imaging plate frame 10 is the body of whole imaging plate grip unit 1, and its all of part and structure are all installed on it；Imaging
Plate grip unit 1 contains eight road wheels 11, and these road wheels 11 all use two bolts to be fixed on imaging plate frame 10, its
In four be clamped on main orbit 7, remaining four are clamped on secondary track 8；Imaging plate fender bracket 12 has rises to the bait 13 and lower hook
14 two quick fixation structures, during installation by rise to the bait 13 and lower hook 14 be respectively aligned to include suitable for reading 16 in imaging plate frame 10 and end opening
17, insertion is entered, and then the fixing hole 15 on imaging plate fender bracket 12 screws in one piece of bolt, it is achieved imaging plate fender bracket 12 He
Being relatively fixed of imaging plate frame 10.
As it is shown in figure 5, X-ray grip unit 3 includes that X-ray fixed mount the 18th, X-ray frame 22 and road wheel 11 form.
Wherein X-ray grip unit 3 includes four road wheels 11, and four road wheels are fixed on X-ray frame by two bolts respectively
On 22；X-ray fixed mount 18 has four hooks 20 and two X-ray fixing holes 19, and X-ray frame 22 has four hanging holes
21, when X-ray fixed mount 18 and X-ray frame 22 are installed, four hooks 20 of X-ray fixed mount 18 insert X-ray respectively
In four hanging holes 21 of frame 22, in fixing hole 19, then screw in bolt X-ray fixed mount 18 is carried out with X-ray frame 22
Fixing.
As shown in Figure 6, driver element 2 comprises decelerator the 24th, motor the 23rd, back plate the 25th, header board the 26th, handle the 28th, sprocket wheel 27 and
Road wheel 11 forms.Wherein whole driver element 2 comprises four road wheels 11, and two in these road wheels are fixed on header board
26, other two is fixed on back plate 25；Decelerator is fixed on back plate, and the input port being bolted to decelerator adopted by motor,
And sprocket wheel is fixed on the output shaft of decelerator, this mean that motor be rotated through decelerator after will export sprocket wheel
On, make sprocket wheel rotate；The end of handle is leading screw, when the handle is rotated, and itself and back plate geo-stationary, and header board is provided with silk
Mother, when the handle is rotated, header board seesaws along the leading screw of handle, the distance of regulation front and rear panels, and front and rear panels
Each a pair road wheel is installed, will realize when the handle is rotated two to the distance between road wheel, being finally reached from main orbit 7
The purpose of dismounting driver element；
As in figure 2 it is shown, main orbit 7 is made up of track and chain.Wherein main orbit and pipeline 6 are coaxial, and use therebetween convex
Rising and being relatively fixed, chain 9 and track welding are connected.
Driver element 2 is positioned between imaging plate grip unit 1 and X-ray grip unit 3, driver element 2 and imaging plate holder
Holding and using left connecting rod 4 to be attached between unit 1, wherein left connecting rod 4 is arc rod-like structure, and two ends have bolt
Hole, the bolt hole at the two ends, left and right of left connecting rod 4 insert respectively bolt and respectively with imaging plate grip unit 1 and driver element 2
It is attached fixing；Right connecting rod 5 has identical structure with left connecting rod 4, and both sides have bolt hole, right connecting rod 5 equally
Two ends, left and right insert bolt respectively and be attached fixing with driver element 2 and X-ray grip unit 3 respectively；
Imaging plate grip unit the 1st, driver element the 2nd, X-ray grip unit the 3rd, left connecting rod 4 and right connecting rod 5 connect into a ring
Shape is overall；Main orbit 7 and secondary track 8 are two independent tracks, and it is relatively fixed with pipeline 6 respectively, imaging plate grip unit
1st, driver element the 2nd, X-ray grip unit 3 carries out the motion on circumferencial direction all along main orbit 7, and driver element the 2nd, X-ray is pressed from both sides
Holding unit 3 and secondary track 8 contactless, the structure of imaging plate grip unit 1 and driver element 2 and X-ray grip unit 3 are not
Identical, imaging plate grip unit 1 has 8 road wheels 11, and four is one group, totally two groups, is responsible for folder for one group of close main orbit 7
Tight main orbit 7, moves in a circle along main orbit 7, and secondary track 8, near secondary track 8, is clamped by another group, and along secondary rail
Road 8 carries out circumferential movement, and secondary track 8 plays to the stable of imaging plate grip unit 1 and booster action, and secondary track 8 and driving are single
Unit's the 2nd, X-ray grip unit 3 is contactless.
The occupation mode of major-minor track is given below：
This equipment have employed main orbit 7 and secondary track 8, the chain 9 that is wherein connected on main orbit can realize with on driver element
The engagement of sprocket wheel 27 drives the motion of whole device, and secondary track 8 is Auxiliary Track, itself and imaging plate grip unit 1 with the use of,
Imaging plate grip unit contains eight road wheels, and these road wheels all use two bolts to be fixed on imaging plate frame, wherein
Four are clamped on main orbit, and remaining four are clamped on secondary track, and such imaging plate grip unit is achieved that two ends are all adopted
It is fixed by the mode of road wheel gripper rail, so can make imaging plate grip unit more stability and security.
The concrete installation and removal process of driver element is given below：
When handle 28 rotates, header board seesaws along the leading screw of handle, regulation front and rear panels distance, and header board and after
A pair road wheel respectively installed by plate, will realize two increases to the distance between road wheel when the handle is rotated, thus permissible
Driver element is unloaded from track；When needs are installed, by the road wheel alignment main orbit of driver element, then reversely rotate
Handle, front and rear panels distance reduces, and the distance between two pairs of road wheels also reduces, final two pairs of road wheels clamping main orbit,
Install.
The Fast Installation mode of X-ray fixed mount is given below：
X-ray fixed mount has four hooks and two X-ray fixing holes, and X-ray frame has four hanging holes, solid in X-ray
When determining frame and the installation of X-ray frame, four hooks of X-ray fixed mount insert in four hanging holes of X-ray frame respectively, then
Screw in bolt in fixing hole X-ray fixed mount is fixed with X-ray frame.
Finally provide the type of drive of whole device：
The type of drive of device have employed a kind of friction driving way different from the past, and chain 9 and main orbit 7 are connected, and and
Pipeline 6 is geo-stationary, and the driving wheel of driver element 2 is set to a sprocket wheel 27, and it is just meshed with chain 9, by slowing down
The output rotation driving sprocket 27 of device 24 rotates, thus realizes sprocket wheel 27 and the engaged transmission of chain 9, because chain the 9th, main orbit 7 and
Pipeline 6 is geo-stationary, so the rotation of sprocket wheel 27 will drive whole device to do circumferential movement around pipeline 6, it is more first
Front friction driving way can provide bigger driving force, and the whole device of final stabilized driving is around pipeline circumferential movement.
Claims (1)
1. a two-orbit portable pipe digitlization detection device, including imaging plate grip unit（1）, driver element
（2）, X-ray grip unit（3）, left connecting rod（4）, right connecting rod（5）, main orbit（7）With secondary track（8）, it is characterised in that：
Described imaging plate grip unit（1）Including imaging plate frame（10）, road wheel（11）With imaging plate fender bracket（12）；Wherein
Imaging plate frame（10）It is whole imaging plate grip unit（1）Body, all of part in this unit and structure are all installed
On it；Imaging plate grip unit（1）Contain eight road wheels（11）, these road wheels（11）Two bolts are all used to be fixed on
Imaging plate frame（10）On；Imaging plate fender bracket（12）Have and rise to the bait（13）With lower hook（14）Two quick fixation structures, during connection on
Hook（13）With lower hook（14）It is respectively aligned to include imaging plate frame（10）On suitable for reading（16）And end opening（17）, insertion enters, and
After at imaging plate fender bracket（12）On fixing hole（15）Screw in one piece of bolt, it is achieved imaging plate fender bracket（12）With imaging trigger
Frame（10）Be relatively fixed；
Described driver element（2）Comprise decelerator（24）, motor（23）, back plate（25）, header board（26）, handle（28）, sprocket wheel
（27）And road wheel（11）；Wherein, whole driver element（2）Comprise four road wheels（11）, these road wheels（11）In two
It individual is fixed on header board（26）, other two is fixed on back plate（25）；Decelerator（24）It is fixed on back plate（25）, motor（23）Use
Bolt is fixed on decelerator（24）Input port, and sprocket wheel（27）It is fixed on the output shaft of decelerator, thus realize motor
（23）Be rotated through decelerator（24）After will export sprocket wheel（27）On, make sprocket wheel（27）Rotate；Handle（28）End
For leading screw, work as handle（28）During rotation, itself and back plate（25）Geo-stationary, and header board（26）Screw is installed, works as handle（28）
During rotation, header board（26）Along handle（28）Leading screw seesaw, regulate header board（26）And back plate（25）Distance, and header board
（26）And back plate（25）A pair road wheel of each installation（11）, work as handle（11）Two will be realized to road wheel during rotation（11）Between
Distance, with realize from main orbit（7）Upper dismounting driving means（2）Purpose；
Described X-ray grip unit（3）Including X-ray fixed mount（18）, X-ray frame（22）And road wheel（11）；Wherein, X
Ray grip unit（3）Including four road wheels（11）, four road wheels（11）It is fixed on X-ray production apparatus by two bolts respectively
Frame（22）On；X-ray fixed mount（18）There are four hooks（20）With two X-ray fixing holes（19）, X-ray frame（22）Tool
Have four hanging holes（21）, at X-ray fixed mount（18）With X-ray frame（22）During installation, X-ray fixed mount（18）Four extensions
Hook（20）Insert X-ray frame respectively（22）Four hanging holes（21）In, then at fixing hole（19）Middle screw-in bolt is by X-ray
Fixed mount（18）With X-ray frame（22）It is fixed；
Described main orbit（7）By main orbit（7）And chain（9）Composition；Wherein main orbit（7）And pipeline（6）Coaxially, and the two it
Between use projection be relatively fixed, chain（9）And main orbit（7）Welding is connected；Described secondary track（8）By the projection of bottom and
Pipeline（6）It is fixed, and the two is concentric；
Driver element（2）It is positioned at imaging plate grip unit（1）With X-ray grip unit（3）Between, driver element（2）And imaging
Plate grip unit（1）Between use left connecting rod（4）It is attached, wherein left connecting rod（4）For arc rod-like structure, two ends are divided
Do not have bolt hole, left connecting rod（4）The bolt hole at two ends, left and right insert respectively bolt and respectively with imaging plate grip unit
（1）And driver element（2）It is attached fixing；Right connecting rod（5）With left connecting rod（4）Having identical structure, both sides are same
There is bolt hole, right connecting rod（5）Two ends, left and right insert bolt and respectively and driver element respectively（2）With X-ray clamping
Unit（3）It is attached fixing；
Imaging plate grip unit（1）, driver element（2）, X-ray grip unit（3）, left connecting rod（4）And right connecting rod（5）
Connect into an annular overall；Main orbit（7）With secondary track（8）Being two independent tracks, it is respectively and pipeline（6）Relatively solid
Fixed, imaging plate grip unit（1）, driver element（2）, X-ray grip unit（3）All along main orbit（7）Carry out circumferencial direction
On motion, driver element（2）, X-ray grip unit（3）With secondary track（8）And contactless, imaging plate grip unit（1）'s
Structure and driver element（2）With X-ray grip unit（3）And differ, imaging plate grip unit（1）There are 8 road wheels
（11）, four is one group, totally two groups, near main orbit（7）One group be responsible for clamp main orbit（7）, along main orbit（7）Do circle
Zhou Yundong, another group is near secondary track（8）, to secondary track（8）Clamp, and along secondary track（8）Carry out circumferential movement, secondary rail
Road（8）Play to imaging plate grip unit（1）Stable and booster action, secondary track（8）And driver element（2）, X-ray clamping
Unit（3）Contactless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693519.1A CN106442578B (en) | 2016-08-19 | 2016-08-19 | Two-orbit portable pipe digitizes detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693519.1A CN106442578B (en) | 2016-08-19 | 2016-08-19 | Two-orbit portable pipe digitizes detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106442578A true CN106442578A (en) | 2017-02-22 |
| CN106442578B CN106442578B (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610693519.1A Expired - Fee Related CN106442578B (en) | 2016-08-19 | 2016-08-19 | Two-orbit portable pipe digitizes detection device |
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| CN (1) | CN106442578B (en) |
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| CN108844975A (en) * | 2018-07-10 | 2018-11-20 | 丹东华日理学电气有限公司 | A kind of outer exposure type pipeline digital imaging detection device for detecting of X-ray and detection method |
| JP2020106466A (en) * | 2018-12-28 | 2020-07-09 | 富士電機株式会社 | X-ray inspection device |
| CN111458356A (en) * | 2020-04-14 | 2020-07-28 | 国网湖南省电力有限公司 | Auxiliary device for radiographic inspection of substation equipment |
| WO2023138060A1 (en) * | 2022-01-20 | 2023-07-27 | 成都熊谷加世电器有限公司 | Double-track welding system |
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| WO2023138060A1 (en) * | 2022-01-20 | 2023-07-27 | 成都熊谷加世电器有限公司 | Double-track welding system |
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| CN106442578B (en) | 2019-07-02 |
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