CN111307954A - Automatic flaw detection equipment for concrete bridge pier - Google Patents
Automatic flaw detection equipment for concrete bridge pier Download PDFInfo
- Publication number
- CN111307954A CN111307954A CN202010200016.2A CN202010200016A CN111307954A CN 111307954 A CN111307954 A CN 111307954A CN 202010200016 A CN202010200016 A CN 202010200016A CN 111307954 A CN111307954 A CN 111307954A
- Authority
- CN
- China
- Prior art keywords
- truss
- pier
- lifting truss
- flaw detection
- lifting
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 72
- 239000000523 sample Substances 0.000 claims abstract description 49
- 230000000712 assembly Effects 0.000 claims abstract description 21
- 238000000429 assembly Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 238000013016 damping Methods 0.000 claims description 9
- 239000000969 carrier Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 description 13
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000834287 Cookeolus japonicus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to automatic flaw detection equipment for a concrete pier, which comprises a plurality of lifting truss assemblies and an ultrasonic flaw detector, wherein a probe of the ultrasonic flaw detector is arranged on a probe mounting seat; the connecting rods in the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss of a regular polygon structure surrounding the bridge pier, wherein the supporting wheel of each lifting truss assembly is in contact with the vertical face of the bridge pier. The flaw detection lifting truss is lifted through the lifting mechanism. The flaw detection lifting truss structure is simple and convenient to operate, the whole structure of the flaw detection lifting truss structure is similar to a chain, the flaw detection lifting truss structure has good deformation and adaptability in the horizontal plane, the flaw detection lifting truss structure can be suitable for piers with different diameters and different section shapes by combining adjustment of the telescopic rods of the lifting truss assemblies in different quantities, and the flaw detection lifting truss structure has good structural strength and stability in the vertical direction.
Description
Technical Field
The invention relates to a concrete pier detection device, in particular to automatic flaw detection equipment for a concrete pier.
Background
In the construction of highways and railways, bridges need to be continuously erected, and most of bridge piers are formed by pouring concrete. Concrete bridge pier can appear the crack in improper maintenance or the long-term use in later stage, when the crack appears, needs maintainer to detect a flaw to the crack, specifically, adopts the ultrasonic flaw detector to detect a flaw to the degree of depth and the width of crack. For the detection of beam plates and piers, operators often need to be conveyed to proper positions through a bridge inspection vehicle and then hand-held ultrasonic flaw detectors for flaw detection.
The operation mode can be applied to piers with general height, but some piers built in the valley mountain stream are dozens of meters or even hundreds of meters high, and the detection of cracks is difficult to complete through bridge inspection vehicles; sometimes need use the scaffold, but set up the time that the scaffold needs longer, operating personnel climbing scaffold moreover has serious potential safety hazard. Therefore, the prior art provides a travelling mechanism for pier detection, such as a travelling mechanism and a travelling method for pier detection provided in the chinese patent application with the application number of 201910092501.X, which comprises a plurality of tractors connected by traction ropes and surrounding a pier, wherein the tractors provide an acting force for supporting the tractors on the wall surface of the pier through the traction ropes.
Also, as disclosed in the chinese invention patent application No. 201810296672.X, a robot system for underwater detection of a pier is disclosed, in which a detection mechanism is a truss formed by butting two semicircular structures, and is fixed to the pier, and the adaptation to piers of different diameters is realized by elastic legs, but the adaptation range is very limited, and it is more difficult to adapt to piers having non-circular sections (such as square, oblong, etc.), and it is very difficult for a large semicircular truss to cause great difficulty to workers in actual installation operation.
Disclosure of Invention
The invention aims to provide a lifting truss component and automatic flaw detection equipment for a concrete pier comprising the same, which have the advantages of strong flexibility, wide application range and good overall structure stability.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a lifting truss component is used for connecting a flaw detection lifting truss for forming automatic flaw detection of a concrete pier and comprises a cross beam and a stand column fixedly connected with the middle part of the cross beam, the cross beam and the stand column form a connecting frame main body which is integrally in a T-shaped structure, telescopic connecting rods are sleeved in two ends of the cross beam, and connecting structures are arranged at the end parts of the connecting rods, so that the truss components can be connected end to end; the cross beam is provided with at least two supporting wheels, and the upright post is provided with one supporting wheel; the supporting wheels are arranged on the connecting frame main body through the damping supporting rods; the supporting wheels are used for contacting with the vertical faces of the piers;
a horizontally extending guide rail is fixedly arranged at the bottom of the upright post, and a traversing trolley capable of reciprocating along the guide rail is arranged on the guide rail; the utility model discloses a travelling bridge, including sideslip dolly, guide rail, telescopic link, probe mount pad, ultrasonic flaw detector, pier facade contact, probe mount pad and the telescopic link hinge, but horizontal hunting, the last telescopic link that is provided with the horizontal extension of sideslip dolly, the telescopic link with the guide rail is perpendicular, the tip that the telescopic link is close to pier one side is provided with the probe mount pad, the probe mount pad is used for placing ultrasonic flaw detector's probe, the probe mount pad with pier facade contact, the.
As a further improvement of the invention, the cross section of the guide rail is in an I shape, the traversing trolley comprises two wheel carriers and two groups of gears which are symmetrically arranged at two sides of a vertical plate of the I-shaped guide rail, each group of gears is arranged in the wheel carriers, one wheel carrier is provided with a servo motor, the servo motor drives one gear to rotate, a wing plate at the lower side of the I-shaped guide rail is provided with teeth meshed with the gears, and the traversing trolley also comprises a connecting frame fixedly connecting the two wheel carriers.
As a further improvement of the invention, the telescopic rod comprises a telescopic rod body, the telescopic rod body is inserted into a hole of the frame of the traverse trolley and guided by the hole, and a spring is sleeved on the telescopic rod body and is arranged between the traverse trolley and the probe mounting seat.
As a further improvement of the invention, the end part of the telescopic rod body is provided with a connecting plate, the back part of the probe mounting seat is provided with connecting lug plates, the connecting lug plates are hinged through pin shafts, and a torsion spring is arranged between the connecting plate and the connecting lug plates; the probe mounting seat comprises a shell with a cavity inside, and four corners of one surface of the shell, which is in contact with the pier, are provided with bull-eye universal balls.
As a further improvement of the invention, the middle part of the cross beam is provided with a pulley; a winch is fixedly arranged on the connecting frame main body; the crossbeam is fixedly provided with more than two upright posts, and the upright posts are provided with supporting wheels.
As a further improvement of the invention, the connecting rod is connected with the cross beam through threads, and the connecting rod can realize extension and retraction through rotation; the connecting structure at the end part of the connecting rod is pivoted with the connecting rod.
As a further improvement of the present invention, the damping support rod includes a fixed seat, a boss disposed on the fixed seat, a guide rod fixed on the boss, a sleeve sleeved outside the guide rod, and a spring disposed between the sleeve and the boss, wherein a shaft sleeve is fixedly disposed at a tail end of the sleeve, and the shaft sleeve is used for connecting with a wheel shaft of the support wheel.
An automatic flaw detection device for a concrete pier comprises a plurality of lifting truss assemblies and an ultrasonic flaw detector, wherein a probe of the ultrasonic flaw detector is arranged on a probe mounting seat; connecting rods in the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss of a regular polygon structure surrounding the bridge pier, wherein a supporting wheel of each lifting truss assembly is in contact with the vertical face of the bridge pier, trusses extending outwards are arranged on two sides of the top of the box girder, and fixed pulleys are arranged on the trusses; the top of the box girder is provided with a winch, the winch bypasses a fixed pulley arranged on the truss through a steel wire rope and is connected with a corresponding lifting truss component downwards, and the winch receives and releases the steel wire rope to control the whole flaw detection lifting truss to lift along the pier.
As another embodiment, the automatic flaw detection equipment for the concrete pier comprises a plurality of lifting truss assemblies and an ultrasonic flaw detector, wherein a probe of the ultrasonic flaw detector is arranged on the probe mounting seat; a plurality of connecting rod end to end among the lift truss subassembly forms a flaw detection lift truss who encircles the regular polygon structure of pier, and wherein each lift truss subassembly's supporting wheel all contacts with the facade of pier, case roof beam top both sides or pier top are provided with the hoisting point all around, the fixed wire rope that is provided with of hoisting point, the fixed hoist engine that is provided with on the lift truss subassembly that corresponds position department among the flaw detection lift truss, the hoist engine with wire rope connects, the hoist engine is through receiving and releasing the whole flaw detection lift truss of wire rope control goes up and down along the pier.
As another embodiment, the automatic flaw detection equipment for the concrete bridge pier comprises a plurality of lifting truss assemblies and an ultrasonic flaw detector, wherein a probe of the ultrasonic flaw detector is arranged on the probe mounting seat; connecting rods in the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss of a regular polygon structure surrounding the bridge pier, wherein a supporting wheel of each lifting truss assembly is in contact with the vertical face of the bridge pier, trusses extending outwards are arranged on two sides of the top of the box girder, and fixed pulleys are arranged on the trusses; the inspection lifting truss structure is characterized in that a winch is arranged on the top of the box girder, lifting points are arranged on two sides of the top of the pier, pulleys are fixedly arranged on a lifting truss component at a corresponding position in the inspection lifting truss, a steel wire rope is arranged on the winch, one end of the steel wire rope is fixedly connected with the winch, the other end of the steel wire rope bypasses a fixed pulley on the truss downwards and then bypasses the pulley on the lifting truss component upwards to be fixedly connected with the lifting points at the top of the pier, and the winch controls the whole inspection lifting truss to lift along the pier by retracting the steel wire rope.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
according to the lifting truss assembly provided by the invention, the connecting frame main body is of a T-shaped structure integrally, three support wheels which are distributed in an inverted Y shape are arranged on the cross beam and the upright column together to form three-point type support, the stability is good, the support wheels are supported by the damping support rods and can stretch out and draw back within a certain range, the lifting truss assembly can be better suitable for piers with different diameters and shapes, and the device can be conveniently in close contact with the piers. Through the arrangement of the telescopic rods at the two ends of the cross beam, the overall length of the lifting truss assembly can be adjusted so as to be suitable for piers with different diameters and different shapes.
The lifting truss assembly is provided with the guide rail and the transverse trolley moving along the guide rail, the ultrasonic probe can be driven to horizontally move within a certain range, and the change of the trend of the general vertically extending crack can be met. By arranging the telescopic rod and the probe mounting seat which is arranged at the end part of the telescopic rod and can swing left and right, the ultrasonic probe in the probe mounting seat is always in stable contact with the inside of the arc-shaped pier, and the accuracy and effectiveness of flaw detection operation are ensured.
According to the automatic flaw detection equipment for the concrete pier, the flaw detection lifting truss is formed by connecting a plurality of lifting truss assemblies end to end, the operation is simple and convenient, the whole structure of the flaw detection lifting truss is similar to that of a chain, the flaw detection lifting truss has good deformation and adaptability in the horizontal plane, the flaw detection lifting truss can adapt to piers with different diameters and different section shapes by adjusting different numbers of lifting truss assemblies and combining telescopic rods of the lifting truss assemblies, and the flaw detection lifting truss has good structural strength and stability in the vertical direction. Through set up the hoisting point at bridge floor or pier top surface, can guarantee device overall stability and reliability, ensure its climbing that goes up and down that can be steady, can reduce the cost and the cost of device simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front view of a lifting truss assembly.
Fig. 2 is a rear view of the lifting truss assembly.
Fig. 3 is a schematic top view of a lifting truss assembly.
Fig. 4 is a side view schematic of a lifting truss assembly.
FIG. 5 is a front view of the traverse carriage.
FIG. 6 is a side view of the traverse carriage.
Fig. 7 is a structural view of the shock-absorbing support rod.
Fig. 8 is a schematic view of the hoist mounted to the lifting truss assembly.
Fig. 9 is a schematic structural view of the inspection lifting truss provided around a pier.
Fig. 10 is a schematic structural view of another embodiment in which the flaw detection lifting truss is provided around a pier.
Fig. 11 is a schematic configuration diagram of the first embodiment of the automatic flaw detection apparatus.
Fig. 12 is a schematic configuration diagram of a second embodiment of the automatic flaw detection apparatus.
Fig. 13 is a schematic configuration diagram of a third embodiment of the automatic flaw detection apparatus.
Wherein: 1 crossbeam, 2 upright posts, 3 connecting rods, 3-1 connectors, 3-2 connecting seats, 4 locking nuts, 5 guide rails, 6 transverse trolleys, 6-1 wheel carriers, 6-2 gears, 6-3 servo motors, 6-4 connecting frames, 6-5 telescopic rod mounting seats, 7 connecting posts, 8 supporting wheels, 9 damping supporting rods, 9-1 fixed seats, 9-2 bosses, 9-3 guide rods, 9-4 springs, 9-5 sleeves, 9-6 shaft sleeves, 10 telescopic rods, 10-1 telescopic rod bodies, 10-2 springs, 10-3 connecting plates, 11 probe mounting seats, 11-1 shells, 11-2 connecting lug plates, 11-3 bull's eye universal balls, 12 pulleys, 13 winches, 100 piers, 200 box beams, 300 trusses, 400 hoisting points, 500 steel wire ropes, a hoisting machine, a crane, a, 001 flaw detection lifting truss.
Detailed Description
For purposes of clarity and a complete description of the present invention, and the like, in conjunction with the detailed description, it is to be understood that the terms "central," "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1 to 13, the present invention provides an automatic flaw detection apparatus for a concrete pier, which includes a plurality of lifting truss assemblies as shown in fig. 1 to 4, and an ultrasonic flaw detector (not shown), wherein connecting rods 3 of the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss 001 of a regular polygonal structure surrounding the pier 100. Referring to fig. 9 and 10, in the case where the cross section of the pier is circular, the flaw detection lifting truss 001 is a regular polygon; if the section of the pier is rectangular, oblong or other shapes, the shape of the flaw detection lifting truss 001 changes along with the shape of the pier.
Ultrasonic flaw detector passes through bluetooth or infrared ray wireless connection with ultrasonic flaw detector including flaw detector host computer and ultrasonic transducer, and by the handheld flaw detector host computer of operating personnel, ultrasonic transducer removes along with the lift truss 001 that detects a flaw, detects a flaw to the crack.
The lifting truss assembly shown in fig. 1-4 is used for connecting a flaw detection lifting truss 001 for forming automatic flaw detection of a concrete pier, and comprises a cross beam 1 and an upright post 2 fixedly connected with the middle part of the cross beam 1, wherein the cross beam 1 and the upright post 2 form a connecting frame main body which is integrally in a T-shaped structure, telescopic connecting rods 3 are sleeved in two ends of the cross beam 1, and connecting structures are arranged at the end parts of the connecting rods 3, so that the truss assemblies can be connected end to end; the crossbeam 1 and the stand 2 both adopt square steel pipes, and the two are fixed through welding.
The connecting rod 3 is connected with the cross beam 1 through threads, and the connecting rod 3 can stretch and retract through rotation; specifically, nuts are welded at two ports of the cross beam 1, and external threads are arranged on the connecting rod 3 and matched with the nuts. And a locking nut 4 is arranged on the connecting rod 3 and used for fixing the connecting rod 3 in position. The connecting structure at the end part of the connecting rod 3 is pivoted with the connecting rod 3.
Referring to fig. 1 and 2, the connecting structure is a connector 3-1 and a connecting seat 3-2, respectively, and both the connector 3-1 and the connecting seat 3-2 are pivoted with the connecting rod 3, i.e. the connector 3-1 and the connecting seat 3-2 can rotate coaxially with respect to the connecting rod 3. The connector 3-1 is connected with the connecting seat 3-2 through a bolt.
At least two supporting wheels 8 (as shown in fig. 2, two supporting wheels are preferably arranged in the embodiment) are arranged on the cross beam 1, the two supporting wheels 8 are symmetrically arranged on the left side and the right side of the cross beam 1, and a certain distance can increase the stability; a supporting wheel 8 is arranged on the upright post 2; the three supporting wheels 8 are distributed in an inverted 'article' -shaped structure to form three-point support.
The supporting wheels 8 are arranged on the connecting frame main body through a damping supporting rod 9; the supporting wheels 8 are used for being in contact with the vertical faces of the piers; the damping support rod 9 can stretch out and draw back to a certain extent, and is adjusted along the radial direction of the pier, so that the connecting device is convenient, and the flaw detection lifting truss 001 and the pier can be tightly combined. The supporting wheel 8 is made of wear-resistant and anti-skid rubber.
As shown in fig. 1 and 2, a horizontally extending guide rail 5 is fixedly arranged at the bottom of the upright post 2, and a traverse trolley 6 capable of reciprocating along the guide rail 5 is arranged on the guide rail 5; in order to enhance the structural stability of the guide rail 5, connecting columns 7 fixedly connecting the cross beam 1 and the guide rail 5 are respectively arranged on two sides of the upright post 2.
As shown in fig. 4 to 6, the cross section of the guide rail 5 is in an i shape, the traverse trolley 6 comprises two wheel frames 6-1 and two groups of gears 6-2 which are symmetrically arranged at two sides of a vertical plate of the i-shaped guide rail 5, each group of gears 6-2 is arranged in the wheel frame 6-1, one wheel frame 6-1 is provided with a servo motor 6-3, the servo motor 6-3 drives one gear 6-2 to rotate, a wing plate at the lower side of the i-shaped guide rail 5 is provided with teeth meshed with the gears 6-2, and the traverse trolley 6 further comprises a connecting frame 6-4 fixedly connecting the two wheel frames 6-1. The wheel carrier 6-1 is of a rectangular frame structure, and the gear 6-2 is arranged in the frame of the wheel carrier 6-1. The gear 6-2 is used as a walking wheel, so that the transverse moving trolley 6 and the guide rail 5 can be well combined, and the walking distance of the transverse moving trolley can be stably controlled. The servo motor 6-3 controls the transverse trolley 6 to move horizontally through remote control, and drives the ultrasonic probe to capture cracks.
As shown in FIG. 4, a horizontally extending telescopic rod 10 is arranged on the traverse trolley 6, a telescopic rod mounting seat 6-5 is fixedly arranged below the connecting frame 6-4, and the telescopic rod 10 penetrates through the telescopic rod mounting seat 6-5. The telescopic link 10 with the guide rail 5 is perpendicular, the tip that telescopic link 10 is close to pier one side is provided with probe mount pad 11, probe mount pad 11 is used for placing ultrasonic flaw detector's probe, probe mount pad 11 with the contact of pier facade, probe mount pad 11 with telescopic link 10 hinge, but the horizontal hunting.
Referring to fig. 6, the telescopic rod 10 includes a telescopic rod body 10-1, the telescopic rod body 10-1 is inserted into and guided by a hole of a telescopic rod mounting seat 6-5 of the traverse carriage 6, a spring 10-2 is sleeved on the telescopic rod body 10-1, and the spring 10-2 is disposed between the traverse carriage 6 and the probe mounting seat 11. The section of the telescopic rod body 10-1 is rectangular and is arranged in the rectangular hole to prevent the telescopic rod body from rotating.
The probe mounting seat 11 comprises a shell 11-1 with a cavity inside, a connecting plate 10-3 is arranged at the end part of the telescopic rod body 10-1, a connecting lug plate 11-2 is arranged at the back part of the shell 11-1 of the probe mounting seat 11, the connecting lug plates 11-2 are hinged through a pin shaft, and a torsion spring is arranged between the connecting plate 10-3 and the connecting lug plate 11-2 to enable the probe mounting seat 11 to reset; and the four corners of one surface of the shell 11-1, which is in contact with the pier 100, are provided with the bullseye universal balls 11-3. The bull's eye universal ball 11-3 enables the probe mount pad 11 to smoothly slide against the pier 100, and reduces frictional resistance. Or, the replaceable polytetrafluoroethylene plate is arranged on the periphery of the surface, in contact with the pier, of the shell 11-1, and has the functions of wear resistance and self lubrication.
As shown in fig. 7, the shock-absorbing support rod 9 comprises a fixed seat 9-1, a boss 9-2 arranged on the fixed seat 9-1, a guide rod 9-3 fixed on the boss 9-2, a sleeve 9-5 sleeved outside the guide rod 9-3, and a spring 9-4 arranged between the sleeve 9-5 and the boss 9-2, wherein a shaft sleeve 9-6 is fixedly arranged at the tail end of the sleeve 9-5, and the shaft sleeve 9-6 is used for connecting with a wheel axle of a support wheel 8. The sleeve 9-5 can be sleeved on the boss 9-2 along the guide rod and the spring 9-4 for positioning the spring 9-4.
As shown in fig. 8, as another embodiment of the lifting truss assembly, a winch 13 is required to be fixedly installed on a connection frame body formed by the lifting truss assembly; the hoisting machine 13 is used for winding and unwinding steel wire ropes fixed on the tops of piers or bridge floors to realize the hoisting of the flaw detection hoisting truss 001. In order to enable the lifting truss assembly to sufficiently bear the traction force of the lifting of the winch 13, which is achieved by the gravity of the winch, the structural strength and the stability of the lifting truss assembly need to be enhanced, more than two upright posts 2 can be fixedly arranged on the cross beam 1, the upright posts 2 are respectively provided with a supporting wheel 9, and the length of each upright post 2 is prolonged. The middle part of the beam 1 is provided with a pulley 12 for supporting and guiding the steel wire rope.
Furthermore, the middle part of the cross beam 1 can be provided with an upright post extending upwards, and the upright post is also provided with a supporting wheel 8 through a damping supporting rod 9, so that the stability of the device can be further improved.
As shown in fig. 9, 8 lifting truss assemblies are connected end to form a regular octagonal flaw detection lifting truss 001 surrounding a cylindrical pier 100, and since the support wheels 8 thereof are installed through the shock-absorbing support rods 9, the support wheels 8 of each lifting truss assembly are in contact with the vertical face of the pier 100. Then, the flaw detection lifting truss 001 is lifted along the pier by the lifting and hoisting mechanism. The transverse moving trolley 6 is controlled by remote control to drive the ultrasonic probe to move along the trend of the crack. Because the lifting truss assemblies are multiple, the positions of the cracks can be observed in advance, and therefore the installation positions of the ultrasonic probes can be selected.
Fig. 10 is a schematic structural view showing another embodiment of the inspection hoist truss installed around a pier, wherein the inspection hoist truss 001 is formed in a regular hexadecimal structure surrounding the cylindrical pier 100 by connecting 16 hoist truss members end to end, that is, the length of the hoist truss member and the diameter of the pier determine how many hoist truss members are needed; the smaller the length of the lifting truss group relative to the diameter of the pier, the higher the degree of freedom of combination thereof, and the larger the range of variation in the shape of the pier section that can be accommodated.
Fig. 11 shows a first embodiment of the lifting crane.
The two sides of the top of the box girder 200 are provided with trusses 300 extending outwards, the trusses 300 are provided by a bridge inspection vehicle, and the trusses 300 are provided with fixed pulleys; the top of the box girder 200 is provided with a winch, the winch bypasses the truss 300 through a steel wire rope 500 to be provided with a fixed pulley and is connected with the corresponding lifting truss assembly downwards, and the winch is used for retracting and releasing the steel wire rope 500 to control the whole flaw detection lifting truss 001 to lift along the pier 100. The winch can be arranged on the bridge inspection vehicle, the truss 300 and the winch are symmetrically arranged on two sides of the box girder 200, the two connection points of the steel wire rope 500 and the flaw detection lifting truss 001 are also symmetrical and are separated by 180 degrees, or two sides of the steel wire rope are respectively dispersed into more than two connection points, so that the balance of the flaw detection lifting truss 001 is ensured.
Fig. 12 shows a second embodiment of the lifting crane.
Wherein, the hoisting point 400 is provided with all around on box roof beam 200 top both sides or pier 100 top, and the hoisting point of box roof beam 200 top both sides can be examined the car by the bridge and provide, and pier 100 top sets up 4 every other 90 degrees hoisting points all around, also can examine the car through the bridge and send the staff to corresponding station, operate, perhaps for the detection of detecting a flaw, predetermine corresponding hoisting point when pouring pier or bridge.
The hoisting point 400 is fixedly provided with a steel wire rope 500, a winch 13 is fixedly arranged on a lifting truss assembly at a corresponding position in the flaw detection lifting truss 001, the winch 13 is connected with the steel wire rope 500, and the winch 13 controls the whole flaw detection lifting truss 001 to ascend and descend along the pier 100 by retracting the steel wire rope 500. The power of the structure is positioned on the flaw detection lifting truss 001, and the lifting of the flaw detection lifting truss 001 is controlled by remotely controlling the action of the winch 13. The lifting truss assembly provided with the hoist 13 should be constructed as shown in fig. 8. And a sheave 12 for supporting and guiding the wire rope 500 is provided at the middle of the cross member 1 thereof.
Fig. 13 shows a third embodiment of the lifting and hoisting mechanism.
In the interim, the box girder 200 is provided at both sides of the top thereof with girders 300 extending outward, the girders 300 may be provided by bridge inspection vehicles, and the girders 300 are provided with fixed pulleys. The top of the box girder 200 is provided with a winch which can be arranged on the bridge inspection vehicle. The two sides of the top of the pier 100 are provided with lifting points 400, and the lifting points can convey workers to corresponding stations through a bridge inspection vehicle for operation or preset corresponding lifting points when the pier or the bridge is poured for the convenience of flaw detection.
The pulley 12 is fixedly arranged on the lifting truss component at the corresponding position in the flaw detection lifting truss 001, the steel wire rope 500 is arranged on the winch on the bridge surface of the box girder 200, one end of the steel wire rope 500 is fixedly connected with the winch, the other end of the steel wire rope 500 bypasses the fixed pulley on the truss 300 downwards and then bypasses the pulley 12 on the lifting truss component upwards to be fixedly connected with the lifting point 400 at the top of the pier 100, the winch controls the whole flaw detection lifting truss 001 to lift along the pier 100 by retracting the steel wire rope 500, and the pulley 12 in the middle of the cross beam 1 is a movable pulley at the moment. The mode has good overall structure stability and stable and reliable operation, and keeps the vertical upward direction of the traction force of the flaw detection lifting truss 001 as much as possible.
The winch, the transverse trolley and the ultrasonic flaw detector in the whole automatic flaw detection equipment for the concrete bridge pier can be remotely controlled by the controller, so that automatic control is realized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a lift truss subassembly for connect and form the automatic lift truss of detecting a flaw of concrete pier, its characterized in that: the truss structure comprises a cross beam (1) and an upright post (2) fixedly connected with the middle part of the cross beam (1), wherein the cross beam (1) and the upright post (2) form a connecting frame main body which is integrally in a T-shaped structure, telescopic connecting rods (3) are sleeved in two ends of the cross beam (1), and connecting structures are arranged at the end parts of the connecting rods (3) so that truss components can be connected end to end; the cross beam (1) is provided with at least two supporting wheels (8), and the upright post (2) is provided with one supporting wheel (8); the supporting wheels (8) are arranged on the connecting frame main body through damping supporting rods (9); the supporting wheels (8) are used for being in contact with the vertical faces of the piers;
a horizontally extending guide rail (5) is fixedly arranged at the bottom of the upright post (2), and a transverse trolley (6) capable of reciprocating along the guide rail (5) is arranged on the guide rail (5); be provided with telescopic link (10) that the level extends on sideslip dolly (6), telescopic link (10) with guide rail (5) are perpendicular, the tip that telescopic link (10) are close to pier one side is provided with probe mount pad (11), probe mount pad (11) are used for placing ultrasonic flaw detector's probe, probe mount pad (11) with pier facade contact, probe mount pad (11) with telescopic link (10) hinge, but the horizontal hunting.
2. The lifting truss assembly of claim 1 wherein: the cross section of the guide rail (5) is I-shaped, the transverse trolley (6) comprises two wheel carriers (6-1) and two groups of gears (6-2) which are symmetrically arranged on two sides of a vertical plate of the I-shaped guide rail (5), each group of gears (6-2) is arranged in the wheel carriers (6-1), one wheel carrier (6-1) is provided with a servo motor (6-3), the servo motor (6-3) drives one gear (6-2) to rotate, a wing plate on the lower side of the I-shaped guide rail (5) is provided with teeth meshed with the gears (6-2), and the transverse trolley (6) further comprises a connecting frame (6-4) fixedly connected with the two wheel carriers (6-1).
3. The lifting truss assembly of claim 1 wherein: the telescopic rod (10) comprises a telescopic rod body (10-1), the telescopic rod body (10-1) is inserted into a hole of a frame of the traversing trolley (6) and guided by the hole, a spring (10-2) is sleeved on the telescopic rod body (10-1), and the spring (10-2) is arranged between the traversing trolley (6) and the probe mounting seat (11).
4. A lifting truss assembly as defined in claim 3 wherein: a connecting plate (10-3) is arranged at the end part of the telescopic rod body (10-1), a connecting lug plate (11-2) is arranged at the back part of the probe mounting seat (11), the connecting lug plates (11-2) are hinged through a pin shaft, and a torsion spring is arranged between the connecting plate (10-3) and the connecting lug plates (11-2); the probe mounting seat (11) comprises a shell (11-1) with a cavity inside, and four corners of one surface, in contact with the pier, of the shell (11-1) are provided with bullseye universal balls (11-3).
5. The lifting truss assembly of claim 1 wherein: a pulley (12) is arranged in the middle of the cross beam (1); a winch (13) is fixedly arranged on the connecting frame main body; the beam (1) is fixedly provided with more than two upright posts (2), and the upright posts (2) are provided with supporting wheels (9).
6. The lifting truss assembly of claim 1 wherein: the connecting rod (3) is connected with the cross beam (1) through threads, and the connecting rod (3) can rotate to realize extension; the connecting structure at the end part of the connecting rod (3) is pivoted with the connecting rod (3).
7. The lifting truss assembly of claim 1 wherein: the damping support rod (9) comprises a fixed seat (9-1), a boss (9-2) arranged on the fixed seat (9-1), a guide rod (9-3) fixed on the boss (9-2), a sleeve (9-5) sleeved outside the guide rod (9-3) and a spring (9-4) arranged between the sleeve (9-5) and the boss (9-2), wherein a shaft sleeve (9-6) is fixedly arranged at the tail end of the sleeve (9-5), and the shaft sleeve (9-6) is used for being connected with a wheel shaft of the support wheel (8).
8. The utility model provides a concrete pier automatic flaw detection equipment which characterized in that: comprising a number of lifting truss assemblies according to any of claims 1-7 and an ultrasonic flaw detector, the probe of which is arranged on the probe mounting seat (11); the connecting rods (3) in the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss (001) of a regular polygon structure surrounding the bridge pier (100), wherein a supporting wheel of each lifting truss assembly is in contact with the vertical face of the bridge pier (100), two sides of the top of the box girder (200) are provided with outwards-extending trusses (300), and the trusses (300) are provided with fixed pulleys; the top of the box girder is provided with a winch, the winch bypasses the truss (300) through a steel wire rope (500) and is provided with a fixed pulley to be connected with a corresponding lifting truss component downwards, and the winch is used for retracting the steel wire rope (500) to control the whole flaw detection lifting truss (001) to lift along the pier (100).
9. The utility model provides a concrete pier automatic flaw detection equipment which characterized in that: comprising a number of lifting truss assemblies according to any of claims 1-7 and an ultrasonic flaw detector, the probe of which is arranged on the probe mounting seat (11); a plurality of connecting rod (3) among the lift truss subassembly links to each other end to end, forms one and encircles regular polygon structure's of pier (100) lift truss (001) of detecting a flaw, and wherein the supporting wheel of each lift truss subassembly all contacts with the facade of pier (100), case roof beam (200) top both sides or pier (100) top are provided with hoisting point (400) all around, hoisting point (400) are fixed to be provided with wire rope (500), fixed hoist (13) that are provided with on the lift truss subassembly of corresponding position department in the lift truss (001) of detecting a flaw, hoist (13) with wire rope (500) are connected, hoist (13) are through receiving and releasing whole lift truss (001) of wire rope (500) control goes up and down along pier (100) of detecting a flaw.
10. The utility model provides a concrete pier automatic flaw detection equipment which characterized in that: comprising a number of lifting truss assemblies according to any of claims 1-7 and an ultrasonic flaw detector, the probe of which is arranged on the probe mounting seat (11); the connecting rods (3) in the plurality of lifting truss assemblies are connected end to form a flaw detection lifting truss (001) of a regular polygon structure surrounding the bridge pier (100), wherein a supporting wheel of each lifting truss assembly is in contact with the vertical face of the bridge pier (100), two sides of the top of the box girder (200) are provided with outwards-extending trusses (300), and the trusses (300) are provided with fixed pulleys; the box girder top is provided with the hoist engine, pier (100) top both sides are provided with hoisting point (400), the fixed pulley 12 that is provided with on the lift truss subassembly that corresponds position department in the lift truss (001) of detecting a flaw, be provided with wire rope 500 on the hoist engine, wire rope (500) one end and hoist engine fixed connection, the other end is walked around fixed pulley on truss (300) is downward, again walk around pulley (12) on the lift truss subassembly upwards with hoisting point (400) fixed connection at pier (100) top, the hoist engine is through receiving and releasing whole lift truss (001) of detecting a flaw of wire rope (500) control goes up and down along pier (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200016.2A CN111307954A (en) | 2020-03-20 | 2020-03-20 | Automatic flaw detection equipment for concrete bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200016.2A CN111307954A (en) | 2020-03-20 | 2020-03-20 | Automatic flaw detection equipment for concrete bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307954A true CN111307954A (en) | 2020-06-19 |
Family
ID=71158837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010200016.2A Pending CN111307954A (en) | 2020-03-20 | 2020-03-20 | Automatic flaw detection equipment for concrete bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111307954A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576209A (en) * | 2020-06-30 | 2020-08-25 | 武汉理工大学 | Modular pier underwater structure detection platform |
| CN113533521A (en) * | 2021-07-15 | 2021-10-22 | 山东沃克无损检测有限公司 | Automatic change ultrasonic inspection device |
| CN114354746A (en) * | 2021-12-27 | 2022-04-15 | 江西省天驰高速科技发展有限公司 | Bridge rectangular pier stud detection system and method |
| CN114522910A (en) * | 2022-01-25 | 2022-05-24 | 北京首钢股份有限公司 | Cleaning device of disk pelletizer |
| CN114878309A (en) * | 2022-05-13 | 2022-08-09 | 中国安能集团第三工程局有限公司 | Novel pipe bridge cylinder concrete intensity detects device |
| CN117871404A (en) * | 2023-12-01 | 2024-04-12 | 上海建工集团股份有限公司 | Crack detection device with cleaning function for underwater concrete bridge pier |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251554Y (en) * | 2008-07-08 | 2009-06-03 | 武汉理工大学 | Deepwater pier detection device |
| JP2012098193A (en) * | 2010-11-04 | 2012-05-24 | Shiyuto Kosoku Doro Gijutsu Center | Self-traveling flaw detector |
| CN105862587A (en) * | 2016-05-27 | 2016-08-17 | 北京恒力铁科技术开发有限公司 | Bridge inspection vehicle and detection method |
| CN205861679U (en) * | 2016-07-26 | 2017-01-04 | 云南省公路科学技术研究院 | A kind of device of pier stud RC axial loading column under bridge water |
| CN206638629U (en) * | 2017-03-30 | 2017-11-14 | 招商局重庆交通科研设计院有限公司 | A kind of underwater bridge pier detection means |
| CN108107116A (en) * | 2017-12-22 | 2018-06-01 | 东莞理工学院 | A kind of concrete pier crack-detecting robot and its method of detection |
| CN207619809U (en) * | 2017-12-05 | 2018-07-17 | 江苏百崮钢结构工程有限公司 | A kind of Long span mountable steel bridge structure |
| CN109403207A (en) * | 2018-12-17 | 2019-03-01 | 乔丽霞 | Concrete bridge pier spray curing means |
| CN110777654A (en) * | 2019-12-02 | 2020-02-11 | 福州大学 | Assembled floating island type bridge pier detection platform and detection method thereof |
-
2020
- 2020-03-20 CN CN202010200016.2A patent/CN111307954A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251554Y (en) * | 2008-07-08 | 2009-06-03 | 武汉理工大学 | Deepwater pier detection device |
| JP2012098193A (en) * | 2010-11-04 | 2012-05-24 | Shiyuto Kosoku Doro Gijutsu Center | Self-traveling flaw detector |
| CN105862587A (en) * | 2016-05-27 | 2016-08-17 | 北京恒力铁科技术开发有限公司 | Bridge inspection vehicle and detection method |
| CN205861679U (en) * | 2016-07-26 | 2017-01-04 | 云南省公路科学技术研究院 | A kind of device of pier stud RC axial loading column under bridge water |
| CN206638629U (en) * | 2017-03-30 | 2017-11-14 | 招商局重庆交通科研设计院有限公司 | A kind of underwater bridge pier detection means |
| CN207619809U (en) * | 2017-12-05 | 2018-07-17 | 江苏百崮钢结构工程有限公司 | A kind of Long span mountable steel bridge structure |
| CN108107116A (en) * | 2017-12-22 | 2018-06-01 | 东莞理工学院 | A kind of concrete pier crack-detecting robot and its method of detection |
| CN109403207A (en) * | 2018-12-17 | 2019-03-01 | 乔丽霞 | Concrete bridge pier spray curing means |
| CN110777654A (en) * | 2019-12-02 | 2020-02-11 | 福州大学 | Assembled floating island type bridge pier detection platform and detection method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576209A (en) * | 2020-06-30 | 2020-08-25 | 武汉理工大学 | Modular pier underwater structure detection platform |
| CN111576209B (en) * | 2020-06-30 | 2021-08-17 | 武汉理工大学 | Modular pier underwater structure detection platform |
| CN113533521A (en) * | 2021-07-15 | 2021-10-22 | 山东沃克无损检测有限公司 | Automatic change ultrasonic inspection device |
| CN113533521B (en) * | 2021-07-15 | 2024-04-19 | 山东沃克无损检测有限公司 | Automatic ultrasonic flaw detection device |
| CN114354746A (en) * | 2021-12-27 | 2022-04-15 | 江西省天驰高速科技发展有限公司 | Bridge rectangular pier stud detection system and method |
| CN114354746B (en) * | 2021-12-27 | 2024-05-03 | 江西省天驰高速科技发展有限公司 | Bridge rectangular pier column detection system and method |
| CN114522910A (en) * | 2022-01-25 | 2022-05-24 | 北京首钢股份有限公司 | Cleaning device of disk pelletizer |
| CN114522910B (en) * | 2022-01-25 | 2023-01-06 | 北京首钢股份有限公司 | Cleaning device of disk pelletizer |
| CN114878309A (en) * | 2022-05-13 | 2022-08-09 | 中国安能集团第三工程局有限公司 | Novel pipe bridge cylinder concrete intensity detects device |
| CN117871404A (en) * | 2023-12-01 | 2024-04-12 | 上海建工集团股份有限公司 | Crack detection device with cleaning function for underwater concrete bridge pier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111307954A (en) | Automatic flaw detection equipment for concrete bridge pier | |
| CN102797222B (en) | Hanging bracket hinge joint type bridge maintenance vehicle capable of avoiding bridge-side obstacles | |
| CN103342318B (en) | Lifting device for steel truss inspection trolley working platform and installation method thereof | |
| CN110655015B (en) | Trackless self-propelled platform car for subway tunnel maintenance | |
| CN104003324A (en) | Lifting machine for conveying heavy tool | |
| CN103663300A (en) | Track type telescopic hanging basket special for bridge | |
| CN109653481A (en) | A kind of hanging rail formula high-altitude operation platform and production method | |
| CN113202020A (en) | Arch rib maintenance vehicle suitable for box type arch rib inspection | |
| WO2021135195A1 (en) | Lifting frame, air transportation vehicle, and air rail container transportation method | |
| CN111764613A (en) | High-altitude equipment installation device in rail traveling area of rail transit engineering and construction method | |
| CN212316704U (en) | Bridge construction hanging basket capable of passing pier | |
| CN212687392U (en) | Cable crane hoisting device for bridge erection | |
| CN212887601U (en) | Rail type tall building detection robot | |
| CN213774416U (en) | Construction hanging basket | |
| CN212076208U (en) | Assembled building component lifting device | |
| CN213173167U (en) | Movable suspension type aerial train track maintenance device | |
| CN110618191B (en) | Metal magnetic memory detection device suitable for wire rope | |
| CN210070919U (en) | Suspension type empty rail way measuring device | |
| CN209603469U (en) | A kind of hanging rail formula high-altitude operation platform | |
| CN202730646U (en) | Bridge maintenance car with articulated type hanging bracket and capable of avoiding bridge-side barriers | |
| CN217335716U (en) | Inside inspection device of large-span box girder bridge | |
| CN218507416U (en) | Hoisting device for ballastless track | |
| CN110697571A (en) | Single-guide-beam descending type beam feeding device and beam feeding method thereof | |
| CN219546446U (en) | Slope lifting type hanging basket device | |
| CN219686999U (en) | Highway and railway dual-purpose maintenance operation vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |