CN208595923U - A kind of equipment suitable for multi-pipe-diameter weld seam detection - Google Patents
A kind of equipment suitable for multi-pipe-diameter weld seam detection Download PDFInfo
- Publication number
- CN208595923U CN208595923U CN201821111533.7U CN201821111533U CN208595923U CN 208595923 U CN208595923 U CN 208595923U CN 201821111533 U CN201821111533 U CN 201821111533U CN 208595923 U CN208595923 U CN 208595923U
- Authority
- CN
- China
- Prior art keywords
- trustship
- fixed
- pipe
- lead screw
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of equipment suitable for multi-pipe-diameter weld seam detection, including welded tube to be detected, flaw detection head, it is fixed on the trustship track and detection track on ground, vehicle frame is provided on the trustship track, it is provided on the vehicle frame and rolls trustship bracket assembly, the side for rolling trustship bracket assembly is provided with imaging plate bracket assembly, and probe walking mechanism is provided on the detection track.The utility model has the beneficial effects that, by the way that two trustship brackets are arranged in the upper surface of planker, two trustship brackets are attached with a reversed lead screw, it is provided with idler wheel above trustship bracket, for the welded tube of different welded tube sizes, passes through the handwheel of rotational lead screw one end, so that two trustship bracket reverse movements, change the distance between two idler wheels so that the various sizes of welded tube to be detected being placed between two idler wheels can be detected with the utility model, the utility model it is applied widely.
Description
Technical field
The utility model relates to welding line detector field, especially a kind of equipment suitable for multi-pipe-diameter weld seam detection.
Background technique
As boiler, pressure vessel, chemical machinery, oceanic tectonic object, space flight spacecraft and atomic energy engineering etc. are to senior staff officer
The development in several and enlarged direction, wherein being no lack of with the presence of weldment, the structure of these weldments must be high quality, no
Then, emerged in operation accident will cause heavy loss, and welded tube is as the biggish component of industrial usage amount, the weldering of weld seam
Connecing quality needs, qualification could put into industrial application after testing,
Conventional welded tube detection device can not detect in detail tubing mainly for the detection of local weld seam, and
And its scope of application is small, the welded tube of different tube diameters size is detected not applicable.
Utility model content
Purpose of the utility model is to solve the above problems, devise a kind of setting suitable for multi-pipe-diameter weld seam detection
It is standby.
Realize that above-mentioned purpose the technical solution of the utility model is a kind of equipment suitable for multi-pipe-diameter weld seam detection, including
Welded tube to be detected, head of detecting a flaw, is fixed on the trustship track and detection track on ground, is provided with vehicle frame on the trustship track, institute
It states to be provided on vehicle frame and rolls trustship bracket assembly, it is total that the side for rolling trustship bracket assembly is provided with imaging board mount
At, probe walking mechanism is provided on the detection track,
The rolling trustship bracket assembly includes being fixed on told vehicle frame and arranging along the trustship track direction of travel
Two supporting plates, be individually fixed in two supporting plate two sides mother lead screw, be fixed on the bearing at each mother lead screw center while connecting
The bearing of two mother lead screws and with the bearing interference fit lead screw, be set to the upper surface of supporting plate and with pair of two mother lead screws
Two symmetrical trustship brackets of title face are individually fixed in each trustship bracket bottom surface and along down-feed screw directional spreding
Sliding block, be individually fixed in supporting plate two sides and glide direction and lead screw axially identical two sliding rails, be individually fixed in two trustships
The roller groove for turning over pipe servo motor, being opened in trustship rack upper surface of side face is set in roller groove and watches with pipe is turned over
The idler wheel for taking the fixed roller bearing of the rotary output axis of motor, being connected on roller bearing and being located in roller groove,
The imaging plate bracket assembly includes the support stand being fixed on ground, is fixed on support stand top and position
The sub-truss of the vehicle frame side is close in it, the sliding support for being set to sub-truss bottom surface, is set to sliding support
Side and be located at and be close to the imaging plate of the vehicle frame side, the side of the bottom surface of the sub-truss and the sliding support
It is respectively and fixedly provided with sliding rail, the side that the upper top surface of the sliding support and the imaging plate are close to the sliding support is respectively and fixedly provided with cunning
Block,
The probe walking mechanism include be set on detection track and with the pedestal that it is slidably connected, be fixed on pedestal
The column of upper surface, the vertical vertical rail in the two sides for being bolted on column respectively and direction are set to column and lean on
The side of the nearly vehicle frame and the detection bar being slidably connected with vertical rail are fixed on pedestal upper surface and positioned at column side
Displacement servo motor, the lift servo motor being fixed at the top of column, the flaw detection head are set to one of detection bar far from column
End.
The section of the sliding rail is I-shaped, and its surface offers multiple counter sinks, and the sliding rail passes through interior hexagonal spiral shell
Bolt is fixed on the bracket where the sliding rail, and the section of the sliding block is concave character type, and, the cunning corresponding with I-shaped sliding rail
The contact surface of block and the sliding rail is smooth and the sliding block can slide on the sliding rail.
The position of the bottom surface of the vehicle frame and the corresponding trustship track is fixed with multiple rail wheels.
The center of the mother lead screw offers bearing hole, and the inner sidewall of the bearing hole is smooth, in the bearing hole
It is fixed with the bearing, the both ends of the lead screw and the position for corresponding to the mother lead screw are polished rod, the lead screw and the bearing
It is assembled by hot charge practice, the lead screw is two-way lead screw.
The bearing is circular cone roller bearing, and two bearings being located on the same lead screw counter fill.
The same end of two lead screws is respectively arranged with handwheel.
It is described turn over pipe servo motor, displacement servo motor, lift servo motor control terminal be electrically connected with servo-drive
Device, the host computer of the servo-driver are PLC controller.
The beneficial effect is that 1. by being arranged two trustship brackets in the upper surface of planker, two trustship brackets are with one
A reversed lead screw is attached, and is provided with idler wheel above trustship bracket, for the welded tube of different welded tube sizes, by rotating silk
The handwheel of thick stick one end, so that two trustship bracket reverse movements, change the distance between two idler wheels, so that being placed on two rollings
Various sizes of welded tube to be detected between wheel can be detected with the utility model, the utility model it is applied widely.
2. after welded tube to be detected is placed between the idler wheel on trustship bracket, the rotation of pipe servo motor is turned over by control,
Corresponding idler wheel is driven to rotate, so that the welded tube to be detected rotation being placed on idler wheel, because the position of imaging plate is fixed,
By rotating welded tube to be detected, the detection of circumference, pushes vehicle frame, weldering where can completing the corresponding imaging Board position of welded tube to be detected
Pipe axial displacement, while cooperating the rotation of idler wheel, so that welded tube carries out helical rotation relative to imaging plate, so that imaging plate
The weld seam diagnosis situation of welded tube various pieces to be detected can be generated.
Detailed description of the invention
Fig. 1 is a kind of overall structure of the explosion figure of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model；
Fig. 2 is a kind of overall structure signal of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model；
Fig. 3 is a kind of oblique two surveys view of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model；
Fig. 4 is a kind of knot of the rolling trustship bracket assembly of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model
Structure explosive view；
Fig. 5 is a kind of welded tube detection part structural representation of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model
Figure；
Fig. 6 is a kind of trustship supporting structure explosive view of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model；
Fig. 7 is a kind of Fig. 6 partial enlarged view of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model；
Fig. 8 is a kind of probe walking mechanism explosion signal of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model
Figure；
Fig. 9 is that a kind of imaging plate bracket assembly explosion of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model is shown
It is intended to；
Figure 10 is a kind of servo motor electrical connection control of equipment suitable for multi-pipe-diameter weld seam detection described in the utility model
Block diagram processed；
In figure, 1, welded tube to be detected；2, flaw detection head；3, trustship track；4, detection track；5, vehicle frame；6, trustship branch is rolled
Frame assembly；7, imaging plate bracket assembly；8, probe walking mechanism；9, supporting plate；10, mother lead screw；11, bearing；12, lead screw；13, it holds in the palm
Pipe holder；14, sliding block；15, sliding rail；16, pipe servo motor is turned over；17, roller groove；18, roller bearing；19, idler wheel；20, stand is supported；
21, sub-truss；22, sliding support；23, imaging plate；24, pedestal；25, column；26, vertical rail；27, bar is detected；28, position
Move servo motor；29, lift servo motor；30, counter sink；31, rail wheel；32, bearing hole；33, handwheel；34, servo-drive
Device；35, PLC controller.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as Figure 1-10 shows, one kind being suitable for multi-pipe-diameter weld seam
The equipment of detection, including welded tube to be detected (1) are detected a flaw head (2), and trustship track (3) and detection track (4) on ground are fixed on,
It being provided with vehicle frame (5) on the trustship track (3), vehicle frame (5) is main walking mechanism, for driving entire welded tube mobile,
It is provided on the vehicle frame (5) and rolls trustship bracket assembly (6), the side for rolling trustship bracket (6) assembly is provided with into
As board mount assembly (7), probe walking mechanism (8) is provided on the detection track (4),
As shown in Figs. 1-5, the rolling trustship bracket assembly (6) includes being fixed on told vehicle frame (5) and along the support
Two supporting plates (9) of pipe track (3) direction of travel arrangement, are fixed the mother lead screw (10) for being individually fixed in two supporting plate (9) two sides
In each mother lead screw (10) center bearing (11), simultaneously connect two mother lead screws (10) bearing (11) and with the bearing (11)
The lead screw (12) of interference fit, the upper surface for being set to supporting plate (9) and symmetrical with the plane of symmetry of two mother lead screws (10)
Two trustship brackets (13) are individually fixed in each trustship bracket (13) bottom surface and along the cunning of down-feed screw (12) directional spreding
Block (14) is individually fixed in supporting plate (9) two sides and axial identical two sliding rails (15) of glide direction and lead screw (12), solid respectively
Due to the roller groove for turning over pipe servo motor (16), being opened in trustship bracket (13) upper surface of two trustship bracket (13) sides
(17), it is set in roller groove (17) and the roller bearing (18) fixed with the rotary output axis that turns over pipe servo motor (15), is connected to
Idler wheel (19) on roller bearing (18) and in roller groove (17),
As shown in Figure 5, Figure 9, the imaging plate bracket assembly (7) includes the support stand (20) being fixed on ground, consolidates
Due to support stand (20) top and be located at its sub-truss (21) for being close to the vehicle frame (5) side, be set to sub-truss
(21) sliding support (22) of bottom surface, be set to sliding support (22) side and be located at be close to the vehicle frame (5) side
Imaging plate (23), the bottom surface of the sub-truss (21) and the side of the sliding support (22) are respectively and fixedly provided with the sliding rail
(15), the side that the upper top surface Yu the imaging plate (23) of the sliding support (22) are close to the sliding support (22) is fixed
Have sliding block (14), imaging plate (23) can realize it relative to support stand (20) vertical by sliding rail (15) and sliding block (14)
The movement of plane, so that the welded tube of different tube diameters is cooperated to use,
As shown in figure 8, the probe walking mechanism (8) include be set on the detection track (4) and with its company of sliding
The pedestal (24) connect is fixed on the column (25) of pedestal (24) upper surface, is bolted on the two sides of column (25) respectively
The vertical vertical rail (26) in face and direction is set to the side and and vertical rail of column (25) close to the vehicle frame (5)
(26) the detection bar (27) that is slidably connected is fixed on pedestal (24) upper surface and is located at the displacement servo motor of column (25) side
(28), the lift servo motor (29) being fixed at the top of column (25), the flaw detection head (2) are set to detection bar (27) far from vertical
One end of column (25)；
As shown in fig. 7, the section of the sliding rail (15) is I-shaped, and its surface offers multiple counter sinks (30), institute
It states sliding rail (15) to be fixed on the corresponding bracket of the sliding rail (15) by hexagon socket head cap screw, the section of the sliding block (14) is recessed
The contact surface of font, and corresponding with I-shaped sliding rail (15), the sliding block (14) and the sliding rail (15) is smooth and the sliding block
(14) it can slide axially on the sliding rail (15), the specific length of sliding rail (15) can be intercepted according to actual demands of engineering；
As shown in Figs. 1-5, the position of the bottom surface of the vehicle frame (5) and the corresponding trustship track (3) is fixed with multiple
Rail wheel (31), rail wheel (31) are moved for vehicle frame (5) along trustship track (3)；It opens the center of the mother lead screw (10)
Equipped with bearing hole (32), the inner sidewall of the bearing hole (32) is smooth, is fixed with the bearing (11) in the bearing hole (32),
The both ends of the lead screw (12) and the position of the corresponding mother lead screw (10) are polished rod, the lead screw (12) and the bearing (11)
It is assembled by hot charge practice, the lead screw (12) is two-way lead screw；The bearing (11) is circular cone roller bearing, and is located at same
Two bearings (11) on the lead screw (12) instead fill, and the same end of two lead screws (12) is respectively arranged with handwheel
(33), lead screw (12) can be driven to rotate by rotating handwheel (33), because lead screw (12) is two-way lead screw, lead screw (12) rotation
When so that trustship bracket (13) is realized synchronous backward movement, and then change the distance between idler wheel (19)；
As shown in Figure 10, the control for turning over pipe servo motor (16), displacement servo motor (28), lift servo motor (29)
End processed is electrically connected with servo-driver (34), and the host computer of the servo-driver (34) is PLC controller (35), described
The model S7-300 of PLC controller (35), four are turned over pipe servo motor (16) and synchronized under the control of servo-driver (34)
It rotates in same direction, for driving welded tube to overturn, displacement servo motor (28) and lift servo motor (29) are used to probe vehicle with walking machine
The calibration of the detection bar (27) and welded tube to be detected (1) central axis of structure (8).
Working principle:
The distance between idler wheel is adjusted according to the outer diameter of welded tube to be detected first, rotates handwheel, because connecting with handwheel
The reversed lead screw connect is threaded with two supporting supports, is provided with idler wheel in supporting support, so rotation handwheel can make to adjust
The distance between whole two idler wheel adjusts separately two groups of idler wheels to suitable position, welded tube to be detected is placed on rolling by fork truck
Between two groups of idler wheels of dynamic trustship bracket assembly,
Then it is gone up and down so that probe walking mechanism is moved along detection track by control by command displacement servo motor
Servo motor, so that detection bar is moved along vertical rail where it, until in the central axis and welded tube to be detected of detection bar
Mandrel line is overlapped, and manually pushes vehicle frame, and the detecting head for detecting bar end is made to correspond to the position that welded tube to be detected needs to detect,
Start to detect a flaw, the welding quality of weld seam is judged by the photographic information that detecting head detection is shown on imaging plate,
During detection, pipe servo motor is turned over by control, is rotate in same direction so that idler wheel synchronizes, welded tube is overturn with idler wheel, is completed
Imaging plate corresponds to the quality detection work of one border of welded tube position,
After the position detection of welded tube certain border, vehicle frame is pushed, so that rolling trustship bracket assembly in trustship rail
It is moved on road, and then welded tube moves along its axis, repeats the detection process that idler wheel drives welded tube rotation, when welded tube is from one end to another
After the detection of one end, that is, complete the weld seam detection process of entire welded tube.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (7)
1. a kind of equipment suitable for multi-pipe-diameter weld seam detection, including welded tube to be detected (1) detect a flaw head (2), are fixed on the support on ground
Pipe track (3) and detection track (4), which is characterized in that be provided with vehicle frame (5) on the trustship track (3), the vehicle frame (5)
On be provided with roll trustship bracket assembly (6), it is described roll trustship bracket assembly (6) side be provided with imaging plate bracket assembly
(7), probe walking mechanism (8) is provided on the detection track (4),
The rolling trustship bracket assembly (6) includes being fixed on the vehicle frame (5) and along trustship track (3) the traveling side
To arrangement two supporting plates (9), be individually fixed in two supporting plate (9) two sides mother lead screw (10), be fixed on each mother lead screw
(10) bearing (11) at center, the silk for connecting the bearing (11) of two mother lead screws (10) simultaneously and being interference fitted with the bearing (11)
Thick stick (12), the upper surface for being set to supporting plate (9) and the two trustship brackets symmetrical with the plane of symmetry of two mother lead screws (10)
(13), it is individually fixed in each trustship bracket (13) bottom surface and along the sliding block (14) of down-feed screw (12) directional spreding, difference
It is fixed on supporting plate (9) two sides and glide direction and lead screw (12) axial identical two sliding rails (15), is individually fixed in two supports
The roller groove (17) for turning over pipe servo motor (16), being opened in trustship bracket (13) upper surface of pipe holder (13) side is set to
In roller groove (17) and with the rotary output axis that turns over pipe servo motor (16) fixed roller bearing (18), be connected on roller bearing (18) and
Idler wheel (19) in roller groove (17),
The imaging plate bracket assembly (7) includes the support stand (20) being fixed on ground, is fixed on support stand (20) top
End and the sliding branch for being located at its sub-truss (21) for being close to the vehicle frame (5) side, being set to sub-truss (21) bottom surface
Frame (22), the side for being set to sliding support (22) and it is located at and is close to the imaging plate (23) of the vehicle frame (5) side, the support
The bottom surface of truss (21) and the side of the sliding support (22) are respectively and fixedly provided with the sliding rail (15), the sliding support (22)
Upper top surface and the imaging plate (23) be close to the side of the sliding support (22) and be respectively and fixedly provided with sliding block (14),
The probe walking mechanism (8) includes being set to the pedestal (24) being slidably connected on the detection track (4) and with it,
Column (25), the two sides for being bolted on column (25) respectively and the direction for being fixed on pedestal (24) upper surface are vertical
Vertical rail (26), the side for being set to column (25) close the vehicle frame (5) and the spy being slidably connected with vertical rail (26)
Measuring staff (27), is fixed on column at the displacement servo motor (28) for being fixed on pedestal (24) upper surface and being located at column (25) side
(25) the lift servo motor (29) at the top of, flaw detection head (2) are set to the one end of detection bar (27) far from column (25).
2. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that the sliding rail (15)
Section be it is I-shaped, and its surface offers multiple counter sinks (30), and the sliding rail (15) is fixed on by hexagon socket head cap screw
On the corresponding bracket of the sliding rail (15), the section of the sliding block (14) is concave character type, and, institute corresponding with I-shaped sliding rail (15)
The contact surface for stating sliding block (14) and the sliding rail (15) is smooth and the sliding block (14) can slide axially on the sliding rail (15).
3. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that the vehicle frame (5)
Bottom surface and the position of the corresponding trustship track (3) be fixed with multiple rail wheels (31).
4. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that the mother lead screw
(10) center offers bearing hole (32), and the inner sidewall of the bearing hole (32) is smooth, solid in the bearing hole (32)
Surely have the bearing (11), the position of the both ends of the lead screw (12) and the corresponding mother lead screw (10) is polished rod, the lead screw
(12) it is assembled with the bearing (11) by hot charge practice, the lead screw (12) is two-way lead screw.
5. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that the bearing (11)
For circular cone roller bearing, and two bearings (11) being located on the same lead screw (12) instead fill.
6. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that two lead screws
(12) the same end is respectively arranged with handwheel (33).
7. a kind of equipment suitable for multi-pipe-diameter weld seam detection according to claim 1, which is characterized in that described to turn over pipe servo
Motor (16), displacement servo motor (28), lift servo motor (29) control terminal be electrically connected with servo-driver (34), institute
The host computer for stating servo-driver (34) is PLC controller (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111533.7U CN208595923U (en) | 2018-07-13 | 2018-07-13 | A kind of equipment suitable for multi-pipe-diameter weld seam detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111533.7U CN208595923U (en) | 2018-07-13 | 2018-07-13 | A kind of equipment suitable for multi-pipe-diameter weld seam detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595923U true CN208595923U (en) | 2019-03-12 |
Family
ID=65602887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821111533.7U Expired - Fee Related CN208595923U (en) | 2018-07-13 | 2018-07-13 | A kind of equipment suitable for multi-pipe-diameter weld seam detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877497A (en) * | 2019-04-18 | 2019-06-14 | 燕山大学 | A kind of device and technique of mobile cooling bar magnet welding ERW pipe |
| CN110900539A (en) * | 2019-12-27 | 2020-03-24 | 程维滨 | Graphene processing device and processing method |
-
2018
- 2018-07-13 CN CN201821111533.7U patent/CN208595923U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877497A (en) * | 2019-04-18 | 2019-06-14 | 燕山大学 | A kind of device and technique of mobile cooling bar magnet welding ERW pipe |
| CN109877497B (en) * | 2019-04-18 | 2020-01-07 | 燕山大学 | Device and process for welding ERW pipe by movable cooling magnetic bar |
| CN110900539A (en) * | 2019-12-27 | 2020-03-24 | 程维滨 | Graphene processing device and processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208595923U (en) | A kind of equipment suitable for multi-pipe-diameter weld seam detection | |
| US8304683B2 (en) | Seam welding apparatus and seam welding method | |
| CN102486942A (en) | Ultrasonic automatic checking tool for dissimilar metal welding seam of top cover instrument measuring pipe | |
| CN102608140B (en) | Detection device for steel tube weld seams through X-ray real-time imaging | |
| CN105372270A (en) | Gantry-type X-ray nondestructive detection device | |
| US4640453A (en) | Apparatus for fabricating multi-layer spiral tubes | |
| CN209871513U (en) | Conveying device for X-ray detection of steel pipe welding seam | |
| CN211602336U (en) | Seat skeleton rigidity strength test bench | |
| CN109827538A (en) | A kind of bar straightness detection device and its straightness detection method | |
| CN109570886A (en) | A kind of welding tooling and steel pipe for steel pipe butt welding is to welding method | |
| CN210089598U (en) | Flatness detection device for steel bar production | |
| RU2635649C1 (en) | Mill for assembling and welding straight-seam pipes | |
| CN201886788U (en) | Ultrasonic automatic checking tool for dissimilar metal welding seam of top cover instrument measuring pipe | |
| CN107470486A (en) | A kind of complete tuber of numerical control | |
| CN206740700U (en) | A kind of bar grasping drive unit | |
| CN102809608B (en) | Trolley type automatic ultrasonic flaw-detecting machine with built-in robot for large cylindrical shell section parts | |
| CN107457454A (en) | A kind of complete tuber of self correction numerical control | |
| CN113092680A (en) | Nondestructive testing device for welding seam | |
| CN108444714A (en) | A kind of automobile bearing production detection device | |
| CN105783832A (en) | Method for measuring external diameter of cartridge member during spinning process through on-line detection apparatus | |
| CN202351220U (en) | Adjustable three-wheeled centering device | |
| CN102401805B (en) | A kind of tank car real-time radiographic imaging method and system | |
| CN107478727A (en) | A kind of ultrasonic examination instrument for measuring metal works | |
| CN111426757A (en) | Ultrasonic flaw detector for multi-specification pipe and bar materials | |
| CN105784729A (en) | X-ray detection method and device for small-diameter drum longitudinal welds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |