CN106950286A - The detection of steel bridge deck top board welding line ultrasonic walks dolly certainly - Google Patents
The detection of steel bridge deck top board welding line ultrasonic walks dolly certainly Download PDFInfo
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- CN106950286A CN106950286A CN201710113800.8A CN201710113800A CN106950286A CN 106950286 A CN106950286 A CN 106950286A CN 201710113800 A CN201710113800 A CN 201710113800A CN 106950286 A CN106950286 A CN 106950286A
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- crossbeam
- longeron
- probe
- ultrasonic
- bridge deck
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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
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/26—Ground engaging parts or elements
- B62D55/265—Ground engaging parts or elements having magnetic or pneumatic adhesion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Dolly is walked the invention discloses a kind of detection of steel bridge deck top board welding line ultrasonic certainly, including crawler type magnet-wheel mechanism, vehicle frame, ultrasonic probe and probe holder, vehicle frame includes crossbeam and longeron, crossbeam passes through crawler type magnet-wheel mechanism supports, longeron is movably mounted on crossbeam, probe holder is movably mounted on longeron, and probe holder can rotate around own axes in vertical plane；Ultrasonic probe is arranged on vehicle frame；Translation of the ultrasonic probe with probe holder along longeron, longeron are adjusted along the translation of crossbeam from the position on vehicle frame, and ultrasonic probe is rotated with rotation of the probe holder in vertical plane；Vehicle frame drives ultrasonic probe walking with the walking of crawler type magnet-wheel mechanism.Therefore, the present invention carries out Orthotropic Steel Bridge Deck upper plate and the weld joint automatized scanning of U ribs using the adjustable ultrasonic probe of three-dimensional position, overcomes the inconvenience manually detected.
Description
Technical field
The invention belongs to field of non destructive testing, and in particular to a kind of steel bridge deck top board welding line ultrasonic detection walks dolly certainly.
Background technology
The principle of ultrasonic weld seam crack detection is to judge defect in the echo that heterogeneous interface reflects using ultrasonic wave.It is existing
There is conventional ultrasound detection instrument to need in object to be detected surface smear couplant, man-hour manually hand-held is popped one's head in detected material body surface
Scanning is moved in face, while observing the waveform on Ultrasound Instrument display screen, judges defect.And the fatigue crack of Orthotropic Steel Bridge Deck
Top board and U ribs commissure are occurred mainly in, steel box-girder is general high 3 meters or so, and this position is manually detected using ultrasonic wave
When, testing staff is needed by cat ladder, and due to the limitation of ladder movement, it is impossible to continuous long range scanning is carried out, therefore at present,
The crackle of the position is essentially by visual detection, and visual detection finds manually to carry out ultrasound detection after obvious crackle again, is split
Line details, once but crack growth to can be with visual finding when, damage than more serious, for the dimension in later stage
Shield and reparation will all have adverse effect on.Also, it is artificial to carry out being difficult to be swept by fixed position during top board ultrasound examination
Look into, the examined peopleware influence of Detection results is larger.
Accordingly, it would be desirable to which a kind of steel bridge deck welding line ultrasonic detection is from dolly is walked, by automating unmanned plane detection means solution
The certainly above-mentioned limitation manually detected.
The content of the invention
Goal of the invention：The limitation that the present invention is applied for existing ultrasonic detection technology in Orthotropic Steel Bridge Deck
Property there is provided a kind of detection of floorings welding line ultrasonic from walking dolly.The automation scanning of top board and U rib crackles can be carried out.
In order to solve the above-mentioned technical problem, steel bridge deck welding line ultrasonic detection of the present invention uses as follows from dolly is walked
Technical scheme：
A kind of detection of steel bridge deck top board welding line ultrasonic from walking dolly, including crawler type magnet-wheel mechanism, vehicle frame, ultrasonic probe and
Probe holder, vehicle frame includes crossbeam and longeron, and crossbeam is movably mounted at crossbeam by crawler type magnet-wheel mechanism supports, longeron
On, probe holder is movably mounted on longeron, and probe holder can rotate around own axes in vertical plane；Ultrasonic probe
On vehicle frame；Translation of the ultrasonic probe with probe holder along longeron, translation of the longeron along crossbeam come adjust from
Position on vehicle frame, ultrasonic probe is rotated with rotation of the probe holder in vertical plane；Vehicle frame is with crawler type magnet-wheel
The walking of mechanism, drives ultrasonic probe walking.
As a further improvement on the present invention, the crawler type magnet-wheel mechanism, crossbeam, longeron, ultrasonic probe and probe
Frame is in two, and two crossbeams, and one of crossbeam is hinged by hinge with another crossbeam, while between two crossbeams
Both position adjustments and lockings are realized by locking connector；In two ultrasonic probes, one of ultrasonic probe is ultrasound
Ripple transmitting probe, another ultrasonic probe is ultrasonic wave receiving transducer；Ultrasonic wave transmitting probe towards objective emission ultrasonic wave,
After target is penetrated, it can be received by ultrasonic wave receiving transducer.
As a further improvement on the present invention, the crawler type magnet-wheel mechanism, including rubber belt track, some magnet shoes
And two wheel hubs；The length of each magnet shoe and the width of rubber belt track are similar, and rubber is uniformly arranged in parallel to each other
The outer surface of crawler belt；Rubber belt track is entered by two wheel hubs, and is connected between two wheel hubs by rotating shaft；The rotating shaft and the
The clutch end connection of one power-driven mechanism；Rubber belt track is walked under the drive of the first power-driven mechanism.
As a further improvement on the present invention, the longeron is installed on crossbeam by screw mechanism.
As a further improvement on the present invention, the screw mechanism includes screw mandrel and the second power-driven mechanism；Longeron
Lower surface there is screw mandrel sleeve, one end of screw mandrel is connected with the clutch end of the second power-driven mechanism, and the other end is then worn
Silk rolling rod sleeve is placed, and screw thread is connected between screw mandrel and screw mandrel sleeve.
As a further improvement on the present invention, the first described power-driven mechanism, the second power-driven mechanism are closed jointly
With a motor, the clutch end of the motor is connected by gear drive with rotating shaft, while the driving
The clutch end of motor is connected by crown gear differential mechanism with screw mandrel.
As a further improvement on the present invention, the crossbeam sets crossbeam top surface track, leading screw sleeve along medium position
It is flush-mounted in crossbeam top surface track, and can be along crossbeam top surface track translation.
As a further improvement on the present invention, the crossbeam side rail of one is respectively arranged with the both sides of crossbeam top surface track
Road, each crossbeam side rails are identical with the bearing of trend of crossbeam top surface track；The lower surface of longeron is in the both sides of screw mandrel sleeve
It is symmetrically provided with two stringer bracings；One end of each stringer bracing is fixed with longeron, and the other end is then inlaid in homonymy and set
In the crossbeam side rails put, and can be along the crossbeam side rails translation.
As a further improvement on the present invention, the hinge cuts with scissors for cylindricality, including multistage cylindricality hinge sleeve pipe and a post
Shape cuts with scissors bolt, and two sections of adjacent cylindricality hinge sleeve pipes are separately positioned on two crossbeams, and cylindricality hinge bolt sequentially passes through each cylindricality hinge sleeve pipe
Set.
As a further improvement on the present invention, the locking connector includes connector upper plate, connector lower plate and incited somebody to action
The connector fixing bolt that connector upper plate, connector lower plate are connected；On a connector upper plate crossbeam installed therein,
And connector lower plate is then arranged on another crossbeam.
According to above-mentioned technical scheme, relative to prior art, the present invention has the advantage that：
1st, the present invention carries out Orthotropic Steel Bridge Deck upper plate using the adjustable ultrasonic probe of three-dimensional position and U rib weld seams are automatic
Change scanning, overcome the inconvenience manually detected, while whole system is divided into several modules, is mutually combined and realizes work(
Can, the application in other detection methods can also be realized by changing module.
2nd, the present invention is using two ultrasonic probes（Ultrasonic wave transmitting probe+ultrasonic wave receiving transducer）, effectively overcome
Singly pop one's head in the limitation existed in terms of scanning seam inspection.
Brief description of the drawings
Fig. 1 is ultrasound detection walking dolly structural representation of the present invention；
Fig. 2 is that the entirety of ultrasound detection walking dolly described in Fig. 1 disassembles perspective view
Fig. 3 is the magnet-wheel system perspective view of the present invention
Fig. 4 is the vertical transverse beam system perspective view of the present invention
Fig. 5 is the connection system assembled perspective view of the present invention
The connection system that Fig. 6 is the present invention disassembles perspective view
Fig. 7 is that real bridge of the invention uses schematic diagram
In Fig. 1 to 7：1st, crossbeam；1a, crossbeam top surface track；1b, crossbeam side rails；2nd, driving box；2a, pole bracket；2b、
Pedestal；3rd, longeron；3a, longeron track；3b, screw mandrel sleeve；4th, probe holder；5th, magnet-wheel；5a, rubber belt track；5b, magnet crawler belt
Piece；5c, wheel hub；6th, screw mandrel；6a, ring gear；7th, stringer bracing；8th, cylindricality is cut with scissors；8a, cylindricality hinge sleeve pipe；8b, cylindricality hinge bolt；9、
Lock connector；9a, connector lower plate；9b, connector upper plate；9c, connector fixing nut；10th, ultrasonic probe.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.Unless specifically stated otherwise, otherwise in these realities
Apply the positioned opposite of the part illustrated in example and step.Expression formula and numerical value are not limited the scope of the invention.Meanwhile, should be bright
In vain, for the ease of description, the size of the various pieces shown in accompanying drawing is not to be drawn according to actual proportionate relationship.It is right
It may be not discussed in detail in technology, method and apparatus known to person of ordinary skill in the relevant, but in the appropriate case, institute
Stating technology, method and apparatus should be considered as authorizing a part for specification.In shown here and discussion all examples, appoint
What occurrence should be construed as merely exemplary, not as limitation.Therefore, the other examples of exemplary embodiment can
With with different values.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation).
As shown in Fig. 1 to 7, dolly is walked certainly the invention discloses a kind of detection of steel bridge deck top board welding line ultrasonic, including carry out
Belt magnet-wheel mechanism, vehicle frame, ultrasonic probe and probe holder, vehicle frame include crossbeam and longeron, and crossbeam passes through crawler type magnetic-wheel machine
Structure is supported, and longeron is movably mounted on crossbeam, and probe holder is movably mounted on longeron, and probe holder can be around itself
Axis is rotating in vertical plane；Ultrasonic probe is arranged on vehicle frame；Ultrasonic probe with probe holder along the translating of longeron, indulge
Beam is adjusted along the translation of crossbeam from the position on vehicle frame, and ultrasonic probe is with rotation of the probe holder in vertical plane
Rotate；Vehicle frame drives ultrasonic probe walking with the walking of crawler type magnet-wheel mechanism.It follows that of the present invention
Ultrasonic probe three-dimensional position is adjustable, and target seam inspection can be carried out well.In addition, the present invention uses crawler type magnetic-wheel machine
Structure so that the dolly can be attached to the lower surface of steel bridge deck or steel bridge top board by way of magnetic, is realized to top
Plate and U intercostal weld seams are detected.Now, the single probe ultrasonic wave of flaw detection pattern, i.e. ultrasonic probe to objective emission is used,
Weld seam probe result judgement can be carried out along backtracking, after being received by ultrasonic probe.
The pattern in addition, present invention can also be detected a flaw using dual probe, now, the crawler type magnet-wheel mechanism, crossbeam, it is vertical
Beam, ultrasonic probe and probe holder are in two, and two crossbeams, and one of crossbeam is cut with scissors by hinge and another crossbeam
Connect, while realizing that both positions are locked by locking connector between two crossbeams；In two ultrasonic probes, one of them surpasses
Sonic probe is ultrasonic wave transmitting probe, and another ultrasonic probe is ultrasonic wave receiving transducer；Ultrasonic wave transmitting probe is towards target
The ultrasonic wave of transmitting, after target is penetrated, can be received by ultrasonic wave receiving transducer.
In the present invention, the crawler type magnet-wheel mechanism, including rubber belt track, some magnet shoes and two wheel hubs；
The length of each magnet shoe and the width of rubber belt track are similar, uniform in parallel to each other to install, mainly by way of stickup
It is bonded in the outer surface of rubber belt track；Rubber belt track is entered by two wheel hubs, and is connected between two wheel hubs by rotating shaft；Institute
The clutch end that rotating shaft is stated with the first power-driven mechanism is connected；Rubber belt track is descending in the drive of the first power-driven mechanism
Walk.
In the present invention, the longeron is installed on crossbeam by screw mechanism.The screw mechanism includes screw mandrel and second
Power-driven mechanism；The lower surface of longeron has screw mandrel sleeve, one end of screw mandrel and the power output of the second power-driven mechanism
End connection, the other end is then placed through screw mandrel sleeve, and screw thread is connected between screw mandrel and screw mandrel sleeve.
In addition, the first described power-driven mechanism, the second power-driven mechanism share a motor, the drive jointly
The clutch end of dynamic motor is connected by gear drive with rotating shaft, while the clutch end of the motor passes through
Crown gear differential mechanism is connected with screw mandrel.
The crossbeam sets crossbeam top surface track along medium position, and leading screw sleeve is flush-mounted in crossbeam top surface track, and
Can be along crossbeam top surface track translation.
To be further ensured that operating steadily for longeron, the present invention is respectively arranged with one in the both sides of crossbeam top surface track
Crossbeam side rails, each crossbeam side rails are identical with the bearing of trend of crossbeam top surface track；The lower surface of longeron is in screw mandrel
The both sides of sleeve are symmetrically provided with two stringer bracings；One end of each stringer bracing is fixed with longeron, and the other end is then embedding
In the crossbeam side rails set mounted in homonymy, and can be along the crossbeam side rails translation.
In the present invention, the hinge cuts with scissors for cylindricality, including multistage cylindricality hinge sleeve pipe and a cylindricality hinge bolt, and adjacent two
Section cylindricality hinge sleeve pipe is separately positioned on two crossbeams, and cylindricality hinge bolt sequentially passes through each cylindricality hinge sleeve pipe and set.The locking connects
The connector that fitting includes connector upper plate, connector lower plate and connector upper plate, connector lower plate are connected is fixed
Bolt；On a connector upper plate crossbeam installed therein, and connector lower plate is then arranged on another crossbeam.
Technical solutions according to the invention are explained below with reference to accompanying drawing.
Refering to shown in Fig. 1 to Fig. 7, steel bridge deck welding line ultrasonic detection of the invention walks dolly, including crawler type magnet-wheel certainly
Mechanism, three parts of vehicle frame and connection system.Crawler type magnet-wheel mechanism includes rubber belt track 5a, magnet shoe 5b, wheel hub 5c；
Vehicle frame includes crossbeam 1, driving box 2, longeron 3, probe holder 4, screw mandrel 6, stringer bracing 7；Connection system include cylindricality connecting hinge 8,
Connector 9.
As shown in Figure 1, Figure 2, Figure 3 shows, the crawler belt of crawler type magnet-wheel mechanism is bonded on rubber belt track 5a by magnet shoe 5b
Constitute, top magnet shoe is adsorbed on steel bridge deck top board and U rib floors, rotated by wheel hub 5c and drive shoe to replace
Absorption realizes the movable of Athey wheel, the magnet shoe 5b numbers adsorbed on steel plate are carried out according to each of which on steel plate
The weight of strap absorption affinity and whole device is calculated.Wheel hub is connected by rotating shaft and bearing with motor, and bearing and rotating shaft are equal
It is placed in pedestal 2b, pedestal 2b, cantilever support 2a play a part of connection, supporting wheel hub 5c jointly.
As shown in Fig. 1, Fig. 3, Fig. 4, vehicle frame is responsible for while dolly is movable, controlling ultrasonic probe along moving of car
Direction is laterally or longitudinally moved, the main base and diagonal brace 7 and the phase of crossbeam 1 by being placed in cross rail top track 1a of longeron 2
Even, the base of diagonal brace is placed in crossbeam side rails, is connected at the top of diagonal brace with longeron bottom, and the transverse shifting of longeron 3 leads to
Cross screw mandrel 6 and the screw mandrel sleeve 3b that is fixed in longeron base is realized, one end of screw mandrel is provided with a pair of relative ring gear 6a, two
Individual gear is mutually engaged by controller with certain cycle respectively at main drive gear, with realize screw mandrel 6 periodicity clockwise,
Rotate counterclockwise, the reciprocating rotation of screw mandrel 6 is moved along a straight line by the sleeve 3b transverse reciprocatings for being converted into longeron.The longitudinal direction fortune of probe holder
It is dynamic that pinion rotation is controlled by probe holder 4 small machine, so as to be moved in the grooved tracks 3a of longeron top, while probe holder
4 autobiography is also realized by small machine inside probe holder.
As shown in Figure 1, Figure 4, Figure 5, connection system is made up of cylindricality hinge 8 and locking connector 9, cylindricality hinge by sleeve pipe 8a and
Cylindricality hinge bolt 8b compositions, cylindricality hinge should have larger damping, be fixed with the relative position for ensureing two crossbeams；Connector 9 by
Connector lower plate 9a, connector upper plate 9b and fixing nut 9c compositions, upper and lower plates, which are provided with bar hole, to be used to connect, one of
Both sides are protruded, and form weld bolt on groove, another block of plate, and fixation is fastened by nut, and the contact surface of two boards carries out making thick
Processing, it is ensured that have enough frictional force between two plates.By the relative movement between two plates, the change of two crossbeam angles is realized.
During real bridge detection, each several part is assembled completely, two crossbeam angles and fixation are adjusted according to top board U ribs angle, manually
Handheld device is simultaneously adsorbed in top board with being popped one's head in and ultrasound near U rib weld seams as shown in fig. 6, being connected from longer connecting line
Instrument, artificial standing hand-held ultrasound instrument follows dolly traveling dolly to carry out scanning according to programming automation or manual remote control, scanning it
Before need to be pre-processed, can longeron direction of advance end dispose couplant automatic painting apparatus.
Claims (10)
1. a kind of detection of steel bridge deck top board welding line ultrasonic from walk dolly, including crawler type magnet-wheel mechanism, vehicle frame, ultrasonic probe with
And probe holder, vehicle frame includes crossbeam and longeron, and crossbeam is movably mounted at crossbeam by crawler type magnet-wheel mechanism supports, longeron
On, probe holder is movably mounted on longeron, and probe holder can rotate around own axes in vertical plane；Ultrasonic probe
On vehicle frame；
Translation of the ultrasonic probe with probe holder along longeron, longeron are adjusted from the position on vehicle frame along the translation of crossbeam
Put, ultrasonic probe is rotated with rotation of the probe holder in vertical plane；
Vehicle frame drives ultrasonic probe walking with the walking of crawler type magnet-wheel mechanism.
2. steel bridge deck top board welding line ultrasonic detection according to claim 1 walks dolly certainly, it is characterised in that the crawler belt
Formula magnet-wheel mechanism, crossbeam, longeron, ultrasonic probe and probe holder be in two, and two crossbeams, one of crossbeam leads to
Cross hinge to be hinged with another crossbeam, while realizing both position adjustments and lock between two crossbeams by locking connector
It is fixed；In two ultrasonic probes, one of ultrasonic probe is ultrasonic wave transmitting probe, and another ultrasonic probe receives for ultrasonic wave
Probe；Ultrasonic wave transmitting probe after target is penetrated, can be received towards the ultrasonic wave of objective emission by ultrasonic wave receiving transducer
Arrive.
3. steel bridge deck top board welding line ultrasonic detection according to claim 1 or 2 walks dolly certainly, it is characterised in that described
Crawler type magnet-wheel mechanism, including rubber belt track, some magnet shoes and two wheel hubs；The length of each magnet shoe and rubber
The width of glue crawler belt is similar, in parallel to each other the uniform outer surface for being arranged on rubber belt track；Rubber belt track passes through two wheel hubs
Enter, and connected between two wheel hubs by rotating shaft；The rotating shaft is connected with the clutch end of the first power-driven mechanism；Rubber
Crawler belt is walked under the drive of the first power-driven mechanism.
4. steel bridge deck top board welding line ultrasonic detection according to claim 3 walks dolly certainly, it is characterised in that the longeron
Installed by screw mechanism on crossbeam.
5. steel bridge deck top board welding line ultrasonic detection according to claim 4 walks dolly certainly, it is characterised in that the leading screw
Mechanism includes screw mandrel and the second power-driven mechanism；The lower surface of longeron has screw mandrel sleeve, and one end of screw mandrel is moved with second
The clutch end connection of power drive mechanism, the other end is then placed through screw mandrel sleeve, and screw thread between screw mandrel and screw mandrel sleeve
It is connected.
6. steel bridge deck top board welding line ultrasonic according to claim 5 detection is from walking dolly, it is characterised in that described the
One power-driven mechanism, the second power-driven mechanism share a motor jointly, and the clutch end of the motor leads to
Cross gear drive to be connected with rotating shaft, while the clutch end of the motor passes through crown gear differential mechanism and screw mandrel
Connection.
7. steel bridge deck top board welding line ultrasonic detection according to claim 5 walks dolly certainly, it is characterised in that the crossbeam
Crossbeam top surface track is set along medium position, leading screw sleeve is flush-mounted in crossbeam top surface track, and can be along crossbeam top surface
Track translation.
8. steel bridge deck top board welding line ultrasonic detection according to claim 7 walks dolly certainly, it is characterised in that on crossbeam top
The both sides of face track are respectively arranged with the crossbeam side rails of one, extension of each crossbeam side rails with crossbeam top surface track
Direction is identical；The lower surface of longeron is symmetrically provided with two stringer bracings in the both sides of screw mandrel sleeve；Each stringer bracing
One end fixed with longeron, the other end is then inlaid in the crossbeam side rails of homonymy setting, and can be along the crossbeam sideways
Track translation.
9. steel bridge deck top board welding line ultrasonic detection according to claim 2 walks dolly certainly, it is characterised in that the hinge
Cut with scissors for cylindricality, including multistage cylindricality hinge sleeve pipe and a cylindricality cut with scissors bolt, two sections of adjacent cylindricality hinge sleeve pipes are separately positioned on two
On root crossbeam, cylindricality hinge bolt sequentially passes through each cylindricality hinge sleeve pipe and set.
10. steel bridge deck top board welding line ultrasonic detection according to claim 2 walks dolly certainly, it is characterised in that the lock
Determine connector including connector upper plate, can relative to connection upper plate slide connector lower plate and by connector upper plate, even
The connector fixing bolt that fitting lower plate is connected；On a connector upper plate crossbeam installed therein, and connector lower plate
Then it is arranged on another crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113800.8A CN106950286B (en) | 2017-02-28 | 2017-02-28 | Ultrasonic detection self-propelled trolley for welding seams of top plate of steel bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113800.8A CN106950286B (en) | 2017-02-28 | 2017-02-28 | Ultrasonic detection self-propelled trolley for welding seams of top plate of steel bridge deck |
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| Publication Number | Publication Date |
|---|---|
| CN106950286A true CN106950286A (en) | 2017-07-14 |
| CN106950286B CN106950286B (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710113800.8A Active CN106950286B (en) | 2017-02-28 | 2017-02-28 | Ultrasonic detection self-propelled trolley for welding seams of top plate of steel bridge deck |
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