CN114184681B - 3D scanning device for turnout - Google Patents
3D scanning device for turnout Download PDFInfo
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- CN114184681B CN114184681B CN202210135975.XA CN202210135975A CN114184681B CN 114184681 B CN114184681 B CN 114184681B CN 202210135975 A CN202210135975 A CN 202210135975A CN 114184681 B CN114184681 B CN 114184681B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0609—Display arrangements, e.g. colour displays
- G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/262—Linear objects
- G01N2291/2623—Rails; Railroads
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Abstract
A3D scanning device for turnout comprises a rail track seat, an encoding wheel, a driving device, a magnetic guide wheel, a transverse moving seat, an auxiliary wheel, a magnetic probe ring, an ultrasonic probe and a lifting mechanism; the coding wheel and the driving wheel are arranged in parallel front and back, and the magnetic guide wheel is positioned at the lower left or lower right part of the driving wheel; the auxiliary wheel is arranged on the left side or the right side of the driving wheel; the magnetic probe ring is rotatably arranged on the power output end of the lifting mechanism, and the ultrasonic probe is rotatably arranged in the magnetic probe ring; the ultrasonic probe is driven by the driving device and the lifting mechanism to carry out full-coverage scanning on the point rail or the wing rail in the scanning range along the arch-shaped path from top to bottom to generate a plurality of B-type scanning views at different depth positions of the point rail or the wing rail, and then the horizontal section slice images of the B-type scanning views are superposed, calculated and analyzed to obtain a 3D injury image of the point rail or the wing rail in the scanning range. The turnout automatic 3D scanning method can realize automatic 3D scanning of turnouts and avoid the occurrence of missing judgment and misjudgment.
Description
Technical Field
The invention relates to the technical field of rail flaw detection, in particular to a turnout 3D scanning device.
Background
China railways are gradually turned to the leading direction from pursuing, the road networks are more and more dense, the operating mileage reaches over 13.9 kilometers, and meanwhile, the passenger and cargo transportation volume is continuously increased. The steel rails are the parts of the buildings above the railway line which directly bear various loads of rolling stock. Under the action of locomotive vehicles, the steel rails laid on the lines are easy to be damaged in various ways due to different curing and climatic conditions. Therefore, the method strengthens flaw detection and timely replaces the damaged steel rail, and is an important measure for ensuring the driving safety of the electrician building department of the comprehensive machine. Among the various links of the rail, a turnout is a line connection device for a rolling stock to pass from one track to another, is one of the weak links of a track, and is usually laid in large quantities at stations and marshalling groups.
The turnout is an indispensable part of a railway network, turnout flaw detection is a key difficulty in steel rail flaw detection, accidents such as turnout damage, broken rails and the like occur frequently in recent years with the increase of operating loads, the turnout part of a steel rail has diversity on flaw detection surfaces, the flaw detection part is not easy to touch, the operation space is narrow, dangerousness and other factors exist, most parts of the turnout flaw detection are detected by using a manual single probe and locally adopting a simple scanning device, the flaw detection coverage is small, the efficiency is very low, the turnout flaw detection device is not beneficial to installation and portability in the use process, and certain adverse effects are brought to the use process of people.
Disclosure of Invention
The invention aims to solve the technical problem of providing a turnout 3D scanner, which can realize automatic 3D scanning of turnouts, is convenient for flaw detection personnel to visually analyze 3D images of corresponding positions of turnouts, quickly observe each damage and distribution condition thereof in the images and effectively avoid misjudgment due to missing judgment. The technical scheme is as follows:
the utility model provides a switch 3D scanner which characterized in that: the device comprises a rail-mounted seat, a coding wheel, a driving device for driving the driving wheel to rotate, at least one guide wheel with magnetism, a transverse moving seat, an auxiliary wheel, a ring with a magnetic probe, an ultrasonic probe and a lifting mechanism for driving the ring with the magnetic probe to lift; the driving device is arranged on the rail travelling block; the coding wheel and the driving wheel can be rotatably arranged on the rail-mounted seat and are arranged side by side from front to back, and the axes of the coding wheel and the driving wheel are in the left-right direction; the magnetic guide wheel is rotatably arranged on the rail-mounted seat, the axis of the magnetic guide wheel is in the vertical direction, and the magnetic guide wheel is positioned at the lower left or lower right part of the driving wheel; the transverse moving seat can be arranged on the rail-mounted seat in a left-right sliding manner, the auxiliary wheel can be rotatably arranged on the transverse moving seat, the axis of the auxiliary wheel is in the left-right direction, and the auxiliary wheel is positioned on the left side or the right side of the driving wheel; the lifting mechanism is arranged on the transverse moving seat and is positioned between the driving wheel and the auxiliary wheel, the magnetic probe ring is rotatably arranged on the power output end of the lifting mechanism, the axis of the magnetic probe ring is in the vertical direction, the magnetic probe ring is positioned below the magnetic guide wheel, and the ultrasonic probe is rotatably arranged in the magnetic probe ring, and the axis of the ultrasonic probe is in the front-back direction; the turnout 3D scanning device drives the ultrasonic probe to carry out full-coverage scanning on the point rail or the wing rail in the scanning range along the arch-shaped path from top to bottom through the driving device and the lifting mechanism, a plurality of B-type scanning views at different depth positions of the point rail or the wing rail are generated, and then the 3D damage image of the point rail or the wing rail in the scanning range can be obtained through superposition calculation analysis on horizontal section slice images of the B-type scanning views.
When the turnout 3D scanning device is used, the turnout 3D scanning device is placed at a proper position of a turnout, the driving wheel and the coding wheel are made to walk on the wing rail, the auxiliary wheel is made to walk on the point rail or the other wing rail of the turnout, the magnetic guide wheel is attracted and walks on the side surface of the head of the wing rail through magnetic force, and the ultrasonic probe is tightly attached to the side surface of the point rail through the action of the magnetic force between the ring with the magnetic probe and the point rail and keeps a proper pressing force; the coding wheel is used for acquiring the scanning movement distance of the turnout 3D scanner; the magnetic guide wheel is used for realizing the transverse positioning of the whole turnout 3D scanning device, and the auxiliary wheel is matched with the coding wheel and the driving wheel to keep the whole turnout 3D scanning device balanced; through the mutual absorption of taking magnetic probe ring and heart rail or another wing rail, make sideslip seat realize automatically regulated along the lateral sliding thereupon, simultaneously because take the magnetic probe ring rotatable to install on elevating system's power take off end and its axis move towards from top to bottom, ultrasonic transducer rotatable install take magnetic probe ring and its axis move towards from front to back, can make ultrasonic transducer have two rotational degrees of freedom like this, and then make no matter the fork joins, opens, under the parallel condition, ultrasonic transducer's probe face can both be attached with the side of heart rail or another wing rail is automatic, can effectively avoid appearing lou to judge the erroneous judgement.
When scanning is carried out, after parameters such as initial depth, scanning range and the like are set, a driving wheel is driven by a driving device to rotate to drive a turnout 3D scanner to integrally move forwards, so that the driving wheel and a coding wheel walk on a wing rail, an auxiliary wheel walks on a point rail or another wing rail of the turnout, a magnetic guide wheel is adsorbed and absorbed on the side surface of a rail head of the wing rail, an ultrasonic probe is tightly attached to the side surface of the point rail or the wing rail and moves forwards to scan, and a B-type scanning view of a first depth position of the point rail or the wing rail is generated (the B-type scanning view can be displayed by adopting a horizontal section image, a vertical coordinate (Y) in the image represents the scanning depth, and a horizontal coordinate (X) represents the scanning moving distance); until the turnout 3D scanner moves forwards to the end point of the scanning range, the driving device stops rotating the driving wheel, the lifting mechanism drives the magnetic probe ring and the ultrasonic probe to descend by a unit depth distance, then the driving wheel is driven by the driving device to rotate reversely, the turnout 3D scanner is driven to move backwards integrally, the ultrasonic probe is tightly attached to the side surface of the point rail or the wing rail and is scanned backwards and backwards, and a B-type scanning view of a second depth position of the point rail or the wing rail is generated; the ultrasonic probe can carry out full-coverage scanning on the point rail or the wing rail in the scanning range in a bow-shaped path in such a reciprocating way, and a plurality of B-type scanning views at different depth positions of the point rail or the wing rail are generated; and finally, performing superposition calculation analysis on the horizontal section slice images of the plurality of B-type scanning views to obtain a 3D (three-dimensional) damage image of the heart rail or the wing rail in the scanning range. The automatic turnout 3D scanner drives the ultrasonic probe to carry out full-coverage scanning on the point rail or the wing rail in the scanning range along the arch-shaped path from top to bottom through the driving device and the lifting mechanism, a plurality of B-type scanning views at different depth positions of the point rail or the wing rail are generated, and then the horizontal section slice images of the B-type scanning views are superposed, calculated and analyzed, so that a 3D damage image of the point rail or the wing rail in the scanning range can be obtained, flaw detection personnel can intuitively analyze the 3D image of the corresponding position of the turnout, each damage and the distribution condition of the damage in the image can be quickly observed, and the phenomenon of missing judgment and misjudgment can be effectively avoided. In addition, the ultrasonic probe can realize the coupling of the point rail or the wing rail in a dry coupling mode, and by combining the characteristics of the point rail or the wing rail and utilizing the ultrasonic probe with wide sound beams and high energy, the ultrasonic sound beams can cover the point rail or the wing rail in a large area in each scanning process, so that the omission is prevented, and the detection efficiency is improved.
In the preferred scheme, drive arrangement includes first driving motor, annular hold-in range and two driving pulley, and the action wheel is through the rotatable installation of pivot of moving towards about one on the rail seat of going, first driving motor installs on the seat of going to the rail, and one of them driving pulley fixed mounting is on first driving motor's output shaft, and another driving pulley fixed mounting is in the pivot, and two driving pulley are annular hold-in range tensioning jointly. Generally, the first driving motor is a stepping motor or a servo motor. During operation, a first driving motor drives the corresponding transmission belt wheel to rotate, another transmission belt wheel is driven to rotate through the annular synchronous belt, and then the driving wheel is driven to rotate through the rotating shaft, so that power is provided for the turnout 3D scanning device.
In a preferred scheme, the lifting mechanism comprises a vertical guide rail, a lifting spur rack, a second driving motor and a worm gear, the vertical guide rail is installed on the transverse moving seat, the lifting spur rack is installed in the vertical guide rail and is in sliding fit with the vertical guide rail, the second driving motor is installed on the transverse moving seat, and the worm gear is fixedly installed on an output shaft of the second driving motor and is meshed with the lifting spur rack; the magnetic probe ring is rotatably arranged on the lifting spur rack. Generally, the second driving motor is a stepping motor or a servo motor. When the lifting straight rack is in work, the second driving motor drives the worm gear to rotate, and the lifting straight rack, the magnetic probe ring on the lifting straight rack and the ultrasonic probe are driven to ascend or descend by a certain height along the vertical guide rail through the matching between the lifting straight rack and the worm gear.
In the preferred scheme, the rail-mounted seat is provided with at least two guide rods in the left-right direction, the transverse moving seat is provided with at least two guide sleeves, and each guide sleeve is respectively sleeved on the corresponding guide rod and is in sliding fit with the guide rod. The transverse moving seat can be arranged on the rail running seat through the matching between each guide rod and each guide sleeve, so that the transverse moving seat can freely slide along each guide rod in the left-right direction, and the auxiliary wheels can be ensured to walk on the point rail of the turnout all the time. The guide rod is generally a guide shaft with a circular section, and the guide sleeve is generally a linear bearing.
In a specific scheme, the number of the magnetic guide wheels is two, and the two magnetic guide wheels are arranged in parallel from front to back. Like this, can make and sweep the holistic horizontal location of ware more firm to switch 3D, make switch 3D sweep the ware and sweep the holistic equilibrium better when looking for the removal.
The automatic turnout 3D scanner can be placed at a proper position of a turnout, automatic 3D scanning of the turnout can be achieved, an ultrasonic probe can be driven by a driving device and a lifting mechanism to carry out full-coverage scanning on a point rail or a wing rail in a scanning range along a bow-shaped path from top to bottom during scanning, a plurality of B-type scanning views of different depth positions of the point rail or the wing rail are generated, and then horizontal section slice images of all the B-type scanning views are superposed, calculated and analyzed, so that a 3D damage image of the point rail or the wing rail in the scanning range can be obtained, flaw detection personnel can conveniently and visually analyze the 3D image of the corresponding position of the turnout, each damage and the distribution condition of the damage in the image can be rapidly observed, and misjudgment caused by missing judgment can be effectively avoided. In addition, the ultrasonic probe can realize the coupling of the point rail or the wing rail in a dry coupling mode, and by combining the characteristics of the point rail or the wing rail and utilizing the ultrasonic probe with wide sound beams and high energy, the ultrasonic sound beams can cover the point rail or the wing rail in a large area in each scanning process, so that the omission is prevented, and the detection efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic 3D scanner for turnout in the preferred embodiment of the invention.
Fig. 2 is a schematic diagram of the connection and cooperation of the traversing seat, the lifting mechanism, the magnetic probe ring and the ultrasonic probe in the turnout automatic 3D scanner shown in fig. 1.
Detailed Description
As shown in fig. 1 and fig. 2, the turnout 3D scanner comprises a track base 1, an encoding wheel 2, a driving wheel 3, a driving device 4 for driving the driving wheel 3 to rotate, at least one magnetic guide wheel 5, a traversing base 6, an auxiliary wheel 7, a magnetic probe ring 8, an ultrasonic probe 9 and a lifting mechanism 10 for driving the magnetic probe ring 8 to lift and lower; the driving device 4 is arranged on the rail-mounted seat 1; the coding wheel 2 and the driving wheel 3 can be rotatably arranged on the rail-mounted seat 1 and are arranged side by side in the front and back direction, and the axes of the coding wheel 2 and the driving wheel 3 are in the left and right direction; the magnetic guide wheel 5 is rotatably arranged on the rail-mounted seat 1, the axis of the magnetic guide wheel is in the vertical direction, and the magnetic guide wheel 5 is positioned at the lower left of the driving wheel 3; the transverse moving seat 6 can be arranged on the rail-mounted seat 1 in a left-right sliding manner, the auxiliary wheel 7 can be rotatably arranged on the transverse moving seat 6, the axis of the auxiliary wheel is in the left-right direction, and the auxiliary wheel 7 is positioned on the left side of the driving wheel 3; the lifting mechanism 10 is arranged on the transverse moving seat 6 and is positioned between the driving wheel 3 and the auxiliary wheel 7, the magnetic probe ring 8 can be rotatably arranged on the power output end of the lifting mechanism 10, the axis of the magnetic probe ring is in the up-and-down direction, the magnetic probe ring 8 is positioned below the magnetic guide wheel 5, the ultrasonic probe 9 can be rotatably arranged in the magnetic probe ring 8, and the axis of the ultrasonic probe is in the front-and-back direction; the turnout 3D scanner drives the ultrasonic probe 9 to perform full-coverage scanning on the point rail or the wing rail in the scanning range along the arch-shaped path from top to bottom through the driving device 4 and the lifting mechanism 10 to generate a plurality of B-type scanning views at different depth positions of the point rail or the wing rail, and then the horizontal section slice images of the B-type scanning views are superposed, calculated and analyzed to obtain a 3D damage image of the point rail or the wing rail in the scanning range.
In this embodiment, two guide rods 11 moving left and right are installed on the rail seat 1, two guide sleeves 61 are installed on the traverse moving seat 6, and the two guide sleeves 61 are respectively sleeved on the corresponding guide rods 11. The transverse moving seat 6 can be arranged on the rail running seat 1 through the matching between each guide rod 11 and each guide sleeve 61, so that the transverse moving seat 6 can freely slide along each guide rod 11 in the left-right direction, and the auxiliary wheel 7 can be ensured to always walk on the point rail of the turnout. The guide rod 11 is generally a guide shaft having a circular cross section, and the guide sleeve 61 is generally a linear bearing.
In the present embodiment, the number of the magnetic guide wheels 5 is two, and the two magnetic guide wheels 5 are arranged side by side in front and rear. Like this, can make and sweep the holistic horizontal location of ware more firm to switch 3D, make switch 3D sweep the ware and sweep the holistic equilibrium better when looking for the removal.
In this embodiment, the driving device 4 includes a first driving motor 41, an endless timing belt 42 and two driving pulleys 43, the driving pulley 3 is rotatably mounted on the rail-mounted base 1 through a left-right rotating shaft 44, the first driving motor 41 is mounted on the rail-mounted base 1, one of the driving pulleys 43 is fixedly mounted on an output shaft of the first driving motor 41, the other driving pulley 43 is fixedly mounted on the rotating shaft 44, and the two driving pulleys 43 jointly tension the endless timing belt 42. Generally, the first drive motor 41 employs a stepping motor or a servo motor.
In this embodiment, the lifting mechanism 10 includes a vertical guide rail 101, a lifting spur rack 102, a second driving motor 103, and a worm gear 104, the vertical guide rail 101 is mounted on the traverse carriage 6, the lifting spur rack 102 is mounted in the vertical guide rail 101 and slidably engaged with the vertical guide rail 101, the second driving motor 103 is mounted on the traverse carriage 6, and the worm gear 104 is fixedly mounted on an output shaft of the second driving motor 103 and engaged with the lifting spur rack 102; the magnetic probe ring 8 is rotatably arranged at the lower end of the lifting spur rack 102 through a shaft sleeve 81. Generally, the second drive motor 103 employs a stepping motor or a servo motor.
The working principle of the turnout 3D scanner is briefly described as follows:
placing a turnout 3D scanner at a proper position of a turnout, enabling a driving wheel 3 and an encoding wheel 2 to walk on a wing rail, enabling an auxiliary wheel 7 to walk on a point rail or another wing rail of the turnout, enabling a guide wheel 5 with magnetism to be adsorbed and walk on the side surface of the head of the wing rail through magnetic force, enabling an ultrasonic probe 9 to be tightly attached to the side surface of the point rail through the action of the magnetic force between a ring 8 with a magnetic probe and the point rail, and keeping a proper pressing force; the magnetic guide wheel 5 is used for realizing the transverse positioning of the whole turnout 3D scanner, and the auxiliary wheel 7 is matched with the encoding wheel 2 and the driving wheel 3 to keep the balance of the whole turnout 3D scanner; through the mutual adsorption of the magnetic probe ring 8 and the point rail or the other wing rail, the transverse moving seat 6 can slide transversely along each guide rod 11 to realize automatic adjustment, meanwhile, the magnetic probe ring 8 can be rotatably installed on the power output end of the lifting mechanism 10, the axis of the lifting mechanism is in the vertical direction, the ultrasonic probe 9 can be rotatably installed in the magnetic probe ring 8, the axis of the ultrasonic probe is in the front-back direction, so that the ultrasonic probe 9 has two rotational degrees of freedom, and further, the probe surface of the ultrasonic probe 9 can be automatically attached to the side surface of the point rail or the other wing rail no matter the turnouts are converged, opened and parallel, and the occurrence of misjudgment can be effectively avoided.
When scanning is carried out, after parameters such as initial depth, scanning range and the like are set, a first driving motor 41 of a driving device 4 drives a corresponding driving belt wheel 43 to rotate, an annular synchronous belt 42 drives another driving belt wheel 43 to rotate, a rotating shaft 44 drives a driving wheel 3 to rotate, the whole turnout 3D scanner is driven to move forwards, the driving wheel 3 and a coding wheel 2 are made to walk on a wing rail, an auxiliary wheel 7 is made to walk on a point rail or another wing rail of the turnout, a magnetic guide wheel 5 is made to adsorb and suck the side face of a rail head of the wing rail, an ultrasonic probe 9 is tightly attached to the side face of the point rail or the wing rail and moves forwards to scan, and a B-type scanning view of the first depth position of the point rail or the wing rail is generated (the B-type scanning view can be displayed by adopting a horizontal section slice image, a vertical coordinate (Y) in the image represents the scanning depth, and a horizontal coordinate (X) represents the distance of scanning movement); until the turnout 3D scanner moves forwards to the end point of the scanning range, the driving device 4 stops the driving wheel 3 from rotating, meanwhile, the second driving motor 103 of the lifting mechanism 10 drives the worm wheel 104 to rotate, the lifting spur rack 102, the ring 8 with the magnetic probe and the ultrasonic probe 9 are driven to descend for a unit depth along the vertical guide rail 101 together, then the driving wheel 3 is driven by the driving device 4 to rotate reversely, the turnout 3D scanner is driven to move backwards integrally, the ultrasonic probe 9 is made to cling to the side surface of the point rail or the wing rail and is back-swept to perform scanning backwards, and a B-type scanning view of the second depth position of the point rail or the wing rail is generated; in such a reciprocating way, the ultrasonic probe 9 can perform full-coverage scanning on the point rail or the wing rail in the scanning range in a bow-shaped path to generate a plurality of B-type scanning views at different depth positions of the point rail or the wing rail; and finally, carrying out superposition calculation analysis on the horizontal section slice images of the plurality of B-type scanning views to obtain a 3D (three-dimensional) damage image of the center rail or the wing rail in the scanning range. The turnout automatic 3D scanner drives the ultrasonic probe 9 to carry out full-coverage scanning on the point rail or the wing rail in the scanning range along the arch-shaped path from top to bottom through the driving device 4 and the lifting mechanism 10 to generate a plurality of B-type scanning views at different depth positions of the point rail or the wing rail, and then the horizontal section slice images of the B-type scanning views are superposed, calculated and analyzed to obtain a 3D damage image of the point rail or the wing rail in the scanning range, so that a flaw detector can visually analyze the 3D image of the corresponding position of the turnout, each damage and the distribution condition of the damage in the image can be rapidly observed, and the occurrence of misjudgment due to missing can be effectively avoided. In addition, the ultrasonic probe 9 can realize the coupling of the point rail or the wing rail in a dry coupling mode, and by combining the characteristics of the point rail or the wing rail and utilizing the ultrasonic probe 9 with wide sound beams and high energy, the scanning process at each time is realized, the ultrasonic sound beams can cover the point rail or the wing rail in a larger area, the missing detection is prevented, and the detection efficiency is improved.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The utility model provides a switch 3D scanner which characterized in that: the device comprises a rail-mounted seat, a coding wheel, a driving device for driving the driving wheel to rotate, at least one guide wheel with magnetism, a transverse moving seat, an auxiliary wheel, a ring with a magnetic probe, an ultrasonic probe and a lifting mechanism for driving the ring with the magnetic probe to lift; the driving device is arranged on the rail-mounted seat; the coding wheel and the driving wheel can be rotatably arranged on the rail-mounted seat and are arranged side by side from front to back, and the axes of the coding wheel and the driving wheel are in the left-right direction; the magnetic guide wheel is rotatably arranged on the rail-mounted seat, the axis of the magnetic guide wheel is in the vertical direction, and the magnetic guide wheel is positioned at the lower left or lower right part of the driving wheel; the rail-mounted seat is provided with at least two guide rods in the left-right direction, the transverse moving seat is provided with at least two guide sleeves, and each guide sleeve is respectively sleeved on the corresponding guide rod and is in sliding fit with the guide rod; the auxiliary wheel is rotatably arranged on the transverse moving seat, the axis of the auxiliary wheel is in the left-right direction, and the auxiliary wheel is positioned on the left side or the right side of the driving wheel; the lifting mechanism is arranged on the transverse moving seat and is positioned between the driving wheel and the auxiliary wheel, the magnetic probe ring is rotatably arranged on the power output end of the lifting mechanism, the axis of the magnetic probe ring is in the vertical direction, the magnetic probe ring is positioned below the magnetic guide wheel, and the ultrasonic probe is rotatably arranged in the magnetic probe ring, and the axis of the ultrasonic probe is in the front-back direction; the turnout 3D scanner is placed at a proper position of a turnout, a driving wheel and a coding wheel are made to run on a wing rail, a magnetic guide wheel is attracted and runs on the side face of a rail head of the wing rail through magnetic force, an auxiliary wheel is made to run on a point rail or another wing rail of the turnout, an ultrasonic probe is tightly attached to the side face of the point rail or the other wing rail through the magnetic force action between a ring with the magnetic probe and the point rail or the other wing rail, the turnout 3D scanner drives the ultrasonic probe to carry out full-coverage scanning on the point rail or the wing rail in a scanning range along an arch-shaped path from top to bottom through a driving device and a lifting mechanism, a transverse moving seat is made to transversely slide along each guide rod along with the position change of the ring with the magnetic probe through the mutual attraction of the ring with the magnetic probe and the other wing rail, automatic adjustment is realized, a plurality of B-type scanning views of the position of the point rail or the wing rail are generated, and then horizontal section images of each B-type scanning view are superposed, and calculated and analyzed, so that 3D scanning images of the point rail or the point rail in different depth positions of the scanning range can be obtained.
2. The turnout 3D scanner according to claim 1, wherein: drive arrangement includes first driving motor, annular hold-in range and two driving pulley, and the pivot rotatable the installing of trend about the action wheel passes through one on the rail seat of going, first driving motor installs on the rail seat of going, and one of them driving pulley fixed mounting is on first driving motor's output shaft, and another driving pulley fixed mounting is in the pivot, and two driving pulley are annular hold-in range tensioning jointly.
3. The turnout 3D scanner according to claim 1, wherein: the lifting mechanism comprises a vertical guide rail, a lifting spur rack, a second driving motor and a worm gear, the vertical guide rail is installed on the transverse moving seat, the lifting spur rack is installed in the vertical guide rail and is in sliding fit with the vertical guide rail, the second driving motor is installed on the transverse moving seat, and the worm gear is fixedly installed on an output shaft of the second driving motor and is meshed with the lifting spur rack; the magnetic probe ring is rotatably arranged on the lifting spur rack.
4. A switch 3D scanner according to any of claims 1-3, wherein: the number of the magnetic guide wheels is two, and the two magnetic guide wheels are arranged in parallel front and back.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135975.XA CN114184681B (en) | 2022-02-15 | 2022-02-15 | 3D scanning device for turnout |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135975.XA CN114184681B (en) | 2022-02-15 | 2022-02-15 | 3D scanning device for turnout |
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| CN114184681A CN114184681A (en) | 2022-03-15 |
| CN114184681B true CN114184681B (en) | 2022-11-22 |
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| CN115112765B (en) * | 2022-08-29 | 2022-11-08 | 广东汕头超声电子股份有限公司 | Rail foot scanning and flaw detection device |
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|---|---|---|---|---|
| CN203479316U (en) * | 2013-11-25 | 2014-03-12 | 广东汕头超声电子股份有限公司 | Follow-up mechanism of encoder |
| CN110927247B (en) * | 2019-10-29 | 2022-02-25 | 广东工业大学 | Array element adjustable dry coupling type guided wave array sensor and method for pipeline detection |
| CN212243390U (en) * | 2020-06-03 | 2020-12-29 | 广东汕头超声电子股份有限公司 | Turnout scanning frame capable of continuously scanning point rail and wing rail |
| CN112595775A (en) * | 2020-11-07 | 2021-04-02 | 西南交通大学 | Method for identifying rail damage of turnout |
| CN113008991B (en) * | 2021-03-13 | 2024-03-19 | 成都申声科技有限公司 | Portable flaw detection trolley for turnout flaw detection |
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