CN111003019B - Flaw detection vehicle for rail head of railway rail and use method thereof - Google Patents
Flaw detection vehicle for rail head of railway rail and use method thereof Download PDFInfo
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- CN111003019B CN111003019B CN201911394620.7A CN201911394620A CN111003019B CN 111003019 B CN111003019 B CN 111003019B CN 201911394620 A CN201911394620 A CN 201911394620A CN 111003019 B CN111003019 B CN 111003019B
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 129
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
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Abstract
The invention relates to a flaw detection vehicle for a railway steel rail head and a use method thereof, comprising an arc-shaped frame, a cross beam, a probe position adjusting assembly and a side wheel assembly, wherein one side wall of the arc-shaped frame is fixedly connected with one end of the cross beam, first horizontal wheels are respectively arranged at two ends of the bottom of the arc-shaped frame, the probe position adjusting assembly is arranged in the middle of the arc-shaped frame, the side wheel assembly is respectively fixed at two ends of the bottom of the inner side wall of the arc-shaped frame, and the side wheel assembly comprises a magnet seat and a first side wheel frame. In the detection walking process, the first side wheel is always tightly attached to the inner side surface of the steel rail without shaking, so that the detection position of each probe is not deviated, the detection accuracy is improved, and a plurality of probes are assembled to cover the vulnerable surface of the steel rail, thereby greatly improving the detection efficiency.
Description
Technical Field
The invention relates to the technical field of steel rail detection, in particular to a flaw detection vehicle for a railway steel rail head and a use method thereof.
Background
The rail defects used on the high-speed rail or the subway directly influence the operation safety of the high-speed rail, friction and extrusion are generated on the rail in the operation process of the high-speed rail or the subway, so that the rail is cracked, and in addition, some micro defects exist in the rail when the rail leaves the factory, the rail is easy to crack, drop slag, break and other defects under the long-time repeated action of the high-speed rail, the internal defects of the rail are also gradually increased, the rail is extremely easy to break under the action of fatigue stress, and the driving safety is seriously influenced, so that the rail needs to be detected regularly, and the eddy current is generated through a detection probe to detect the cracks and shrinkage defects on the rail head surface of the rail. In the prior art, the defect of the straight steel rail section can be detected by using a locomotive large-scale detection vehicle to walk on the straight steel rail, and when the switch blade part entering and exiting a station is damaged, the switch blade has a bending part, the damage of the bending part can not be detected by using the locomotive large-scale detection vehicle to walk, and when the switch blade part is detected, the switch blade part is detected by using a manual hand-held detector, so that the efficiency is low and the detection is easy to leak.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the flaw detection vehicle for the rail head of the railway rail and the use method thereof, wherein in the detection walking process, the first side wheel is always tightly attached to the inner side surface of the rail, the vibration is avoided, the detection position of each probe is ensured not to deviate, the detection accuracy is improved, and a plurality of probes are assembled to cover the vulnerable surface of the rail, so that the detection efficiency is greatly improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a railway rail railhead flaw detection car, includes flaw detector, every single move frame, the flaw detector is installed on every single move frame, still includes arc frame, crossbeam, probe position adjustment subassembly, side wheel subassembly, a lateral wall of arc frame and the one end fixed connection of crossbeam, first horizontal wheel is installed respectively at the bottom both ends of arc frame, the middle part installation of arc frame the probe position adjustment subassembly, the both ends of arc frame inside wall bottom are fixed respectively the side wheel subassembly, the side wheel subassembly includes magnet seat, first side wheel carrier, rotate respectively on the both sides wall of magnet seat and connect first side wheel carrier, first side wheel carrier and the arc frame lateral wall fixed connection who corresponds, connect first side wheel on the first side wheel carrier, powerful magnet is fixed to the bottom of magnet seat, first side wheel adsorb down with the rail side butt all the time with powerful magnet, second horizontal wheel and second side wheel are installed to the other end of crossbeam, every single move the frame setting is on the crossbeam.
Preferably, a magnetic gap adjusting plate is fixed on the magnet seat, two ends of the magnetic gap adjusting plate are respectively connected with screws in a threaded mode, and one ends of the screws are propped against the corresponding first side wheel frames.
In any of the above aspects, preferably, the top of the magnet holder is internally penetrated by a pendulum shaft, the first side wheel frame is sleeved on the pendulum shaft, so that the magnet holder can rotate relative to the first side wheel frame, and two ends of the pendulum shaft extend to the outer sides of the first side wheel frame and are respectively fixed with an outer diameter collar, so that the pendulum shaft is not separated from the first side wheel frame.
In any of the above schemes, preferably, the probe position adjusting assembly comprises a fixing frame and a probe assembly, the fixing frame comprises a plurality of bending plates which are arranged at equal intervals, the plurality of bending plates are fixed through two connecting rods, sliding grooves are respectively formed in two side walls of the bending plates, the probe assembly is arranged between adjacent bending plates, and the bending plates at the upper edge of the fixing frame are respectively fixedly connected with the bottoms of the adjacent arc-shaped frames; the probe assembly comprises a probe fixing frame and a probe, wherein the probe is arranged on the probe fixing frame so that the probe can move up and down and back and forth relative to the steel rail, and the probe is connected with the flaw detector.
In any of the above schemes, preferably, the probe fixing frame comprises an upper fixing block and a lower fixing block which are arranged up and down, an adjusting screw penetrates through the upper fixing block, the adjusting screw can rotate relative to the upper fixing block, a through groove is formed in one side wall of the lower fixing block, one end of the adjusting screw extends into the groove and is in threaded sleeve joint with a probe sliding plate, a probe is mounted on the probe sliding plate, the probe faces to a steel rail to be detected, the adjusting screw drives the probe sliding plate to adjust the distance between the probe and the steel rail to be detected, and the upper fixing block and the lower fixing block are connected through a fastening screw.
In any of the above schemes, preferably, at least two first cylindrical pins are fixed on the side wall of the upper fixing block corresponding to the bending plate, a second cylindrical pin is fixed on the part of the lower fixing block corresponding to the sliding groove, and the second cylindrical pin is inserted into the sliding groove.
In any of the above schemes, preferably, the top of the probe slide plate is provided with at least one first blind hole, the bottom of the upper fixing block is provided with a second blind hole corresponding to the first blind hole, a first spring is fixed in the first blind hole and extends into the second blind hole, and the first spring is in a compressed state under the fixed connection of the upper fixing block and the lower fixing block.
In any of the above schemes, preferably, a first rotating shaft is rotatably connected to one end top of the beam, a connecting plate capable of being rapidly detached is fixed to the first rotating shaft, supporting plates are respectively fixed to two ends of the connecting plate, the pitching frame forms a U-shaped structure, the bottom of the pitching frame is located between two supporting plates, the side wall of the pitching frame is rotatably connected with the adjacent supporting plates through a second rotating shaft, pitching angle adjustment is carried out on the pitching frame relative to the supporting plates through a pitching angle adjusting assembly, a handle is rotatably connected to the opening end of the pitching frame, and the flaw detector is installed inside the pitching frame.
In any of the above schemes, it is preferable that the inner side of the pitching frame above the flaw detector is rotatably connected with a placement platform, two sides of the placement platform are respectively hinged with a supporting rod, the bottom of the outer side wall of the supporting rod is fixed with a pin shaft, two side walls of the pitching frame are respectively provided with a sliding hole, the bottom wall of the sliding hole is provided with a plurality of limiting grooves, the pin shaft is inserted into one of the limiting grooves and used for supporting the placement platform, and one end of the placement platform close to the flaw detector is fixed with a baffle plate.
The invention also provides a using method of the rail head flaw detection vehicle for the railway steel rail, the rail head flaw detection vehicle is any one of the rail head flaw detection vehicles, and comprises the following steps,
S1, placing a rail head flaw detection vehicle on a steel rail to be detected, enabling a first horizontal wheel on an arc-shaped frame and a second horizontal wheel at the other end of a cross beam to be in butt joint with the rail surface of the steel rail, and enabling a first side wheel and a second side wheel to be located on the inner side of the steel rail and in butt joint with the inner side surface of the steel rail;
S2, rotating the screw to enable the magnet seat to deflect at an angle relative to the first side wheel frame so as to adjust the distance between the powerful magnet and the inner side surface of the steel rail, and adjusting the adsorption force between the powerful magnet and the steel rail so as to ensure that the first side wheel is always abutted against the inner side surface of the steel rail in the walking process;
S3, after the adjustment in the step S2 is finished, the fastening screw is rotated to enable the upper fixing block and the lower fixing block to loosen the bent plate, at the moment, under the action of the first spring, the upper fixing block moves upwards relative to the adjusting screw, at the moment, the whole probe assembly can be moved along the sliding groove, after the adjustment is finished, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to achieve fixation, the adjustment of the horizontal position of the probe relative to the rail surface of the steel rail is achieved, the position of the probe relative to the rail surface of the steel rail is adjusted, the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block, and therefore the vertical distance between the probe and the rail surface of the steel rail to be detected is adjusted;
S4, after the position of the probe in the step S3 relative to the rail surface of the steel rail is adjusted, the height of the handle is adjusted through the pitching angle adjusting component, so that a comfortable handle holding state of a worker is achieved, after the position of the handle is adjusted, the worker pushes the handle to enable the flaw detection vehicle to integrally move along the track of the steel rail, and the probe is used for detecting the damage condition of the rail surface of the steel rail and transmitting information to the flaw detector.
Compared with the prior art, the flaw detection vehicle for the rail head of the railway rail and the use method thereof have the following beneficial effects:
1. in the detection and running process of the flaw detection vehicle, the first side wheel is always abutted against the inner side surface of the steel rail when the flaw detection vehicle runs at the switch blade part through the adsorption of the powerful magnet and the inner side surface of the steel rail, so that shaking is avoided, the detection position of each probe is not deviated, the detection accuracy is improved, and the manufacturing cost is low;
2. By arranging a plurality of probes between the plurality of bending plates, each probe can be adjusted along the shape of the rail head, namely the height of the probe relative to the steel rail and the horizontal position of the probe on the rail surface of the steel rail, a single probe only scans a fraction of the rail head surface, and the plurality of probes can cover the vulnerable surface of the steel rail, so that the detection efficiency is greatly improved;
3. through the setting of every single move angle adjusting part, can adjust the inclination of every single move frame according to different staff's heights to reach the most comfortable angle and promote every single move frame, every single move frame can rotate relative crossbeam, makes things convenient for the staff to keep comfortable promotion posture to walk in rail inboard or rail outside, improves comfort level and convenience.
Drawings
FIG. 1 is a schematic view of the overall construction of a preferred embodiment of a railway rail head inspection vehicle according to the present invention;
FIG. 2 is an enlarged view of the connection of the arc frame, probe position adjustment assembly, side wheel assembly of the embodiment of FIG. 1;
FIG. 3 is a schematic illustration of the configuration of the side wheel assembly of the embodiment of FIG. 1;
FIG. 4 is a schematic view of another surface of the embodiment shown in FIG. 3;
FIG. 5 is a schematic view of the probe position adjustment assembly of the embodiment of FIG. 1;
FIG. 6 is a schematic view of the probe assembly of the embodiment of FIG. 5;
FIG. 7 is a partial cross-sectional view of the embodiment of FIG. 6;
FIG. 8 is a left cross-sectional view of the embodiment shown in FIG. 7;
FIG. 9 is a schematic view of the embodiment of FIG. 1 showing the connection of the pawl block to the ratchet teeth;
FIG. 10 is a schematic view of the connection of the slide hole and the pin in the embodiment shown in FIG. 1;
FIG. 11 is a schematic view of the connection plate and the support plate in the embodiment of FIG. 1;
FIG. 12 is a top view of the connection plate of the embodiment of FIG. 11;
FIG. 13 is a schematic view of the cross beam structure of the embodiment of FIG. 1;
Fig. 14 is a schematic view of the structure of the arc-shaped frame in the embodiment shown in fig. 1.
The reference numerals in the drawings indicate: 1. a pitching frame; 2. an arc-shaped frame; 3. a cross beam; 4. a bending plate; 5. a chute; 6. a magnetic gap adjusting plate; 7. a first side wheel frame; 8. a strong magnet; 9. a magnet base; 10. a first side wheel; 11. a pendulum shaft; 12. an adjusting screw; 13. a first cylindrical pin; 14. a fastening screw; 15. a second cylindrical pin; 16. an upper fixing block; 17. a lower fixing block; 18. a probe slide plate; 19. a probe housing; 20. a probe core; 21. a first spring; 22. a handle; 23. a wire locking wheel; 24. a flaw detector; 25. placing a platform; 26. a slide hole; 27. a support plate; 28. a positioning block; 29. a pawl block; 30. a second side wheel; 31. a pin shaft; 32. a screw; 33. a connecting plate; 34. a mounting hole; 35. a notch; 36. a threaded hole; 37. and a through hole.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the following examples.
As shown in fig. 1-14, according to an embodiment of the flaw detection vehicle for the railway rail head of the railway rail provided by the invention, the flaw detector comprises a flaw detector 24 and a pitching frame 1, wherein the flaw detector 24 is installed on the pitching frame 1, the flaw detection vehicle further comprises an arc frame 2, a cross beam 3, a probe position adjusting assembly and a side wheel assembly, one side wall of the arc frame 2 is fixedly connected with one end of the cross beam 3, first horizontal wheels are respectively installed at two ends of the bottom of the arc frame 2, the probe position adjusting assembly is installed at the middle part of the arc frame 2, the side wheel assemblies are respectively fixed at two ends of the bottom of the inner side wall of the arc frame 2, the side wheel assemblies comprise a magnet seat 9 and a first side wheel frame 7, the two side walls of the magnet seat 9 are respectively and rotatably connected with the first side wheel frame 7, the first side wheel frame 7 is fixedly connected with the corresponding side wall of the arc frame 2, a strong magnet 8 is fixedly connected with the bottom of the first side wheel frame 7, the first side wheel 10 is always abutted to the side face of the steel rail under the attraction of the strong magnet 8, and the other end of the cross beam 3 and a second side wheel is installed on the cross beam 3, and the second side wheel is arranged on the pitching frame 1. The first side wheel 10 is only arranged on the inner side surface of the steel rail to be detected, the first side wheel 10 is always tightly attached to the inner side surface of the steel rail through the adsorption of the powerful magnet 8 and the inner side surface of the steel rail, shaking is not generated in the detection walking process, the detection part of each probe is not deviated, the detection accuracy is improved, and meanwhile, the second side wheel 30 is also arranged on the other steel rail, so that the defect of derailment of a flaw detection vehicle caused by the appearance problem of a switch rail when the switch rail (railway turnout) is crossed is prevented.
The magnet seat 9 is fixedly provided with a magnetic gap adjusting plate 6, two ends of the magnetic gap adjusting plate 6 are respectively connected with screws in a threaded mode, one ends of the screws are propped against the corresponding first side wheel frames 7, namely, one ends of the screws are in contact with the corresponding first side wheel frames, and the screws are attached to the first side wheel frames under the attraction of powerful magnets. Through rotatory screw, the length that the adjusting screw stretched out on magnetic gap regulating plate 6 to make magnetic gap regulating plate 6 can be relative first side wheel carrier 7 remove along the axis direction of screw, because magnet seat 9 rotates with first side wheel carrier 7 to be connected, so the removal of magnetic gap regulating plate 6 drives powerful magnet 8 and removes, thereby can adjust the clearance between powerful magnet 8 and the rail medial surface, and then can change the adsorption affinity size between powerful magnet 8 and the rail, when guaranteeing not influencing the flaw detection car and walking along the rail face of rail, can also make first side wheel 10 closely laminate with the rail medial surface and not break away from, and the regulation of adsorption affinity size is also convenient for detect the rail of multiple width moreover, application scope is wide.
The top of the magnet seat 9 is internally penetrated with a pendulum shaft 11, the first side wheel frame 7 is sleeved on the pendulum shaft 11 so that the magnet seat can rotate relative to the first side wheel frame, and two ends of the pendulum shaft 11 extend to the outer sides of the first side wheel frame 7 and are respectively fixed with an outer diameter clamping ring so that the pendulum shaft 11 is not separated from the first side wheel frame 7.
The probe position adjusting assembly comprises a fixing frame and a probe assembly, wherein the fixing frame comprises a plurality of bent plates 4 which are arranged at equal intervals, the plurality of bent plates 4 are fixed through two connecting rods, sliding grooves 5 are respectively formed in two side walls of the bent plates 4, the probe assembly is arranged between every two adjacent bent plates 4, and the bent plates 4 at the upper edge of the fixing frame are fixedly connected with the bottoms of the adjacent arc-shaped frames 2 respectively; the probe assembly comprises a probe fixing frame and a probe, and the probe is arranged on the probe fixing frame so that the probe can move up and down and back and forth relative to the steel rail. The direction in which the probe moves back and forth relative to the rail is the rail width direction.
The probe fixing frame comprises an upper fixing block 16 and a lower fixing block 17 which are vertically arranged, an adjusting screw 12 penetrates through the upper fixing block 16, the adjusting screw can rotate relative to the upper fixing block, a guide hole is formed in the upper fixing block 16, a first screw 12 penetrates through the guide hole, the diameter of the guide hole is larger than that of the first screw 12, threads are formed in the adjusting screw below the upper fixing block, a through groove is formed in one side wall of the lower fixing block 17, one end of the adjusting screw 12 extends into the groove and is sleeved with a probe slide plate 18 in a threaded manner, limiting grooves which are inwards concave are formed in two side walls in the groove respectively, clamping blocks extend outwards on two side walls of the probe slide plate respectively, the clamping blocks are inserted into the limiting grooves so as to prevent the probe slide plate from rotating along with the adjusting screw, the probe slide plate can only move up and down along with the rotation of the adjusting screw, the probe slide plate 18 is provided with a probe towards a part to be detected, the probe is connected with a flaw detector 24, the adjusting screw drives the probe to be adjusted with a steel rail to be detected, and the distance between the upper fixing block 16 and the lower fixing block 17 is fastened through the fixing block 14. The adjusting screw 12 adopts stainless steel high head knurling screw, the fastening screw 14 adopts stainless steel not to deviate from the knurling screw, the probe includes probe shell 19, probe bush 20, and probe shell 19 is fixed on probe slide 18, and the bottom at probe shell 19 is installed to probe bush 20, gathers a plurality of probes, and every probe can be adjusted along the rail head appearance, and a single probe only scans the quick-wear surface of rail head surface, and a plurality of probes can cover the quick-wear surface of rail to improve detection efficiency greatly.
By rotating the adjusting screw 12, the probe slide plate 18 is positioned in the groove, and under the blocking of the groove, the probe slide plate 18 can only move upwards or downwards along the axis of the adjusting screw 12, so that the adjustment of the position of the probe relative to the height direction of the steel rail is realized, and the distance between the probe and the rail surface of the steel rail is the optimal identification distance of the probe.
At least two first cylindrical pins 13 are fixed on the side wall of the upper fixing block 16 corresponding to the bent plate 4, a second cylindrical pin 15 is fixed on the part of the lower fixing block 17 corresponding to the chute 5, and the second cylindrical pin 15 is inserted into the chute 5.
The top of the probe slide plate 18 is provided with at least one first blind hole, the bottom of the upper fixing block 16 is provided with a second blind hole corresponding to the first blind hole, a first spring 21 is fixed in the first blind hole and extends into the second blind hole, and the first spring 21 is in a compressed state under the fixed connection of the upper fixing block 16 and the lower fixing block 17.
Through rotatory fastening screw 14, make and loosen between fixed block 16 and the fixed block 17 down, go up fixed block 16 and be broken away from with fixed block 17 down under the spring force effect upward movement, thereby make first cylindric lock 13 upwards move relative second cylindric lock 15, loosen bent plate 4, can follow spout 5 direction at this moment and remove the probe subassembly, adjust the horizontal position of probe on the rail face of rail, and then can detect the different positions of rail face of rail, after the horizontal position is adjusted, screw up fastening screw 14 again, make fixed block 16 and fixed block 17 down, thereby make first cylindric lock 13 and second cylindric lock 15 clamp bent plate 4, realize the fixed of probe subassembly.
The utility model discloses a flaw detector, including crossbeam 3, every single move frame 1 is located two backup pads 27, every single move frame 1 carries out every single move angle adjustment through every single move angle adjustment assembly for backup pad 27, but be fixed with quick dismantlement's connecting plate in the first pivot, the backup pad 27 is fixed respectively at the both ends of connecting plate, every single move frame 1 forms U type structure, every single move frame 1 is located between two backup pads 27, and every single move frame's lateral wall rotates with adjacent backup pad through the second pivot, every single move frame 1 carries out every single move angle adjustment through every single move angle adjustment assembly for backup pad 27, every single move frame's open end rotates and is connected with the handle, the flaw detector is installed in every single move frame inboard. Because the connecting plate is fixed with the first rotating shaft, the first rotating shaft is rotationally connected with the top of the cross beam, so that the pitching frame rotates relative to the cross beam by taking the axis of the first rotating shaft as the center of a circle, and an operator can push the pitching frame in any direction through a handle conveniently.
Further, the connecting plate is fixed with the first rotating shaft through tightening the screw, the mounting hole has been seted up to the central part of connecting plate, the breach has been seted up on the connecting plate of mounting hole both sides, the one end and the mounting hole intercommunication of breach are equipped with the through-hole on the connecting plate of breach one side, the screw hole has been seted up on the connecting plate of breach opposite side, the central line of through-hole and screw hole is on same straight line and communicates each other through the breach, and through-hole and screw hole all run through the lateral wall of connecting plate, the central line of through-hole is perpendicular with the horizontal central line of breach, and the both sides of mounting hole set up a through-hole and a screw hole respectively, and when connecting plate and first rotating shaft are installed, overlaps the mounting hole in first rotating shaft, then will tighten the screw and pass through-hole threaded connection, because the setting of breach, the both sides wall of breach receives the extrusion and makes the mounting hole press from each other, realizes the fixed of connecting plate and first rotating shaft.
Specifically, every single move angle adjusting part includes wire locking wheel 23, pawl piece 29, a plurality of ratchet teeth have been seted up at the top of backup pad 27, sliding connection on the lateral wall of every single move frame 1 pawl piece 29, wherein be fixed with locating piece 28 on the lateral wall of every single move frame 1, locating piece 28 has seted up the spout 5 that link up on the lateral wall relative with every single move frame 1, pawl piece 29 insert in spout 5 and can move, the one end of pawl piece 29 is equipped with ratchet teeth complex pawl, the second spring is connected to the other end of pawl piece 29, and pawl piece 29 makes the pawl insert on the ratchet teeth that corresponds under the action of second spring elasticity to play spacing supporting role to every single move frame 1's angle, be fixed with the stopper on the lateral wall of every single move frame 1 and second spring homonymy, stopper and second spring fixed connection make the second spring be in compression state, the one end of handle 22 extends to the outside of every single move frame 1, has cup jointed the wheel on the handle 22 in the outside, the wheel is through being connected with pawl piece 29, and the second spring tension, and the wire tensioning wheel is drawn out of the wire 1 with every single move frame 1 in order to make the wire 1, thereby the wire tensioning device is tight with every single move frame 1, and the wire tensioning, thereby can not draw a wire 1 with every single move angle with the wire 1 in the wire, and the wire tensioning frame is convenient for the height, and the wire change angle is adjusted according to the wire, and the height of the wire 1.
The inboard rotation of every single move frame 1 of appearance 24 top is connected with place platform 25, place platform 25's both sides are articulated bracing piece respectively, the lateral wall bottom of bracing piece is fixed with round pin axle 31, the slide opening 26 has been seted up respectively on every single move frame 1's the both sides wall, a plurality of spacing grooves have been seted up on the diapire of slide opening 26, round pin axle 31 inserts in one of them spacing inslot and is used for supporting place platform 25, place platform 25 is close to the one end of appearance 24 and is fixed with the baffle, places the computer on the place platform 25, inserts in different spacing inslot through removal round pin axle 31, can change place platform 25's inclination to change the position of computer. The flaw detector 24 is connected with a computer and is used for transmitting the detection data to the computer for display.
The second horizontal wheel is connected to the bottom of the other end of the cross beam 3, the second horizontal wheel can rotate relative to the cross beam, the second side wheel 30 is connected to a second side wheel frame, and the second side wheel frame is fixedly connected with the cross beam 3. The second side wheel frame is a right angle plate, the second side wheel 30 is rotationally connected to the bottom of the right angle plate, and when in detection, the second horizontal wheel is placed at the top of the other steel rail, and the second side wheel 30 is attached to the inner side surface of the steel rail.
The working principle of the embodiment is as follows: the flaw detection vehicle is placed on a steel rail to be detected, the screw is in threaded connection with the first side wheel frame, the screw 32 is rotated, so that the magnet seat deflects at an angle relative to the first side wheel frame, the distance between the powerful magnet 8 and the inner side surface of the steel rail can be adjusted, the adsorption force is adjusted, the first side wheel 10 and the inner side surface of the steel rail are tightly attached in walking, walking is not influenced, the fastening screw 14 is rotated, the upper fixing block 16 and the lower fixing block 17 loosen the bent plate 4, at the moment, under the action of the first spring 21, the upper fixing block 16 moves upwards relative to the adjusting screw 12, at the moment, the whole probe assembly can be moved along the sliding groove 5, namely, the horizontal position of the probe is adjusted, after adjustment, the fastening screw 14 is screwed again, the first cylindrical pin 13 and the second cylindrical pin 15 clamp the bent plate 4 mutually, the adjusting screw 12 is rotated, and the probe sliding plate 18 is in threaded connection, and the probe sliding plate 18 is positioned in a groove to limit rotation, so that the probe sliding plate 18 can move up and down, and the height of the probe relative to the steel rail surface is adjusted.
The invention also provides a using method of the rail head flaw detection vehicle for the railway steel rail, the rail head flaw detection vehicle is any one of the rail head flaw detection vehicles, and comprises the following steps,
S1, placing a rail head flaw detection vehicle on a steel rail to be detected, enabling a first horizontal wheel on an arc-shaped frame and a second horizontal wheel at the other end of a cross beam to be in butt joint with the rail surface of the steel rail, and enabling a first side wheel and a second side wheel to be located on the inner side of the steel rail and in butt joint with the inner side surface of the steel rail;
S2, rotating the screw to enable the magnet seat to deflect at an angle relative to the first side wheel frame so as to adjust the distance between the powerful magnet and the inner side surface of the steel rail, and adjusting the adsorption force between the powerful magnet and the steel rail so as to ensure that the first side wheel is always abutted against the inner side surface of the steel rail in the walking process;
S3, after the adjustment in the step S2 is finished, the fastening screw is rotated to enable the upper fixing block and the lower fixing block to loosen the bent plate, at the moment, under the action of the first spring, the upper fixing block moves upwards relative to the adjusting screw, at the moment, the whole probe assembly can be moved along the sliding groove, after the adjustment is finished, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to achieve fixation, the adjustment of the horizontal position of the probe relative to the rail surface of the steel rail is achieved, the position of the probe relative to the rail surface of the steel rail is adjusted, the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block, and therefore the vertical distance between the probe and the rail surface of the steel rail to be detected is adjusted;
S4, after the position of the probe in the step S3 relative to the rail surface of the steel rail is adjusted, the height of the handle is adjusted through the pitching angle adjusting component, so that a comfortable handle holding state of a worker is achieved, after the position of the handle is adjusted, the worker pushes the handle to enable the flaw detection vehicle to integrally move along the track of the steel rail, and the probe is used for detecting the damage condition of the rail surface of the steel rail and transmitting information to the flaw detector.
It will be readily understood by those skilled in the art that the present invention, including any combination of parts described in the summary and detailed description of the invention above and shown in the drawings, is limited in scope and does not constitute a complete description of the various aspects of these combinations for the sake of brevity. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a railway rail railhead flaw detection car, includes flaw detector, every single move frame, the flaw detector is installed on every single move frame, its characterized in that: the device comprises a beam, a probe position adjusting assembly and a side wheel assembly, wherein one side wall of the beam is fixedly connected with one end of the beam, a first horizontal wheel is respectively arranged at two ends of the bottom of the beam, the probe position adjusting assembly is arranged at the middle part of the beam, the side wheel assembly is respectively fixed at two ends of the bottom of the inner side wall of the beam, the side wheel assembly comprises a magnet seat and a first side wheel frame, the two side walls of the magnet seat are respectively and rotatably connected with the first side wheel frame, the first side wheel frame is fixedly connected with the corresponding side wall of the beam, the first side wheel frame is connected with a first side wheel, a strong magnet is fixed at the bottom of the magnet seat and is always abutted to the side face of the rail under the attraction of the strong magnet, a second horizontal wheel and a second side wheel are arranged at the other end of the beam, and the pitch frame is arranged on the beam;
the probe position adjusting assembly comprises a fixing frame and a probe assembly, wherein the fixing frame comprises a plurality of bent plates which are arranged at equal intervals, the plurality of bent plates are fixed through two connecting rods, sliding grooves are respectively formed in the two side walls of the bent plates, the probe assembly is arranged between the adjacent bent plates, and the bent plates at the upper edge of the fixing frame are fixedly connected with the bottoms of the adjacent arc-shaped frames respectively; the probe assembly comprises a probe fixing frame and a probe, the probe is arranged on the probe fixing frame so that the probe can move up and down and back and forth relative to the steel rail, and the probe is connected with the flaw detector;
The probe fixing frame comprises an upper fixing block and a lower fixing block which are vertically arranged, an adjusting screw penetrates through the upper fixing block, the adjusting screw can rotate relative to the upper fixing block, a through groove is formed in one side wall of the lower fixing block, one end of the adjusting screw extends into the groove and is in threaded sleeve joint with a probe sliding plate, a probe is mounted on the probe sliding plate and faces to a steel rail to-be-detected position, the adjusting screw drives the probe sliding plate to adjust the distance between the probe and the steel rail to-be-detected position, and the upper fixing block and the lower fixing block are connected through a fastening screw;
The top of one end of the cross beam is rotationally connected with a first rotating shaft, a rapidly detachable connecting plate is fixed on the first rotating shaft, supporting plates are respectively fixed at two ends of the connecting plate, the pitching frame forms a U-shaped structure, the pitching frame is positioned between the two supporting plates, the side wall of the pitching frame is rotationally connected with the adjacent supporting plates through a second rotating shaft, the pitching frame carries out pitching angle adjustment relative to the supporting plates through a pitching angle adjusting assembly, the opening end of the pitching frame is rotationally connected with a handle, and the flaw detector is installed on the inner side of the pitching frame;
the inner side of a pitching frame above the flaw detector is rotationally connected with a placing platform, two sides of the placing platform are respectively hinged with a supporting rod, the bottom of the outer side wall of the supporting rod is fixed with a pin shaft, two side walls of the pitching frame are respectively provided with a sliding hole, A plurality of limit grooves are formed in the bottom wall of the sliding hole, the pin shaft is inserted into one of the limit grooves and used for supporting a placing platform, and a baffle is fixed at one end, close to the flaw detector, of the placing platform.
2. The railroad rail head inspection truck of claim 1, wherein: the magnet seat is fixedly provided with a magnetic gap adjusting plate, two ends of the magnetic gap adjusting plate are respectively connected with screws in a threaded mode, and one ends of the screws are propped against the corresponding first side wheel frames.
3. The railroad rail head inspection truck of claim 1, wherein: the top of the magnet seat is internally penetrated with a pendulum shaft, the first side wheel frame is sleeved on the pendulum shaft so that the magnet seat can rotate relative to the first side wheel frame, and two ends of the pendulum shaft extend to the outer side of the first side wheel frame and are respectively fixed with an outer diameter collar so that the pendulum shaft is not separated from the first side wheel frame.
4. The railroad rail head inspection truck of claim 1, wherein: at least two first cylindrical pins are fixed on the side wall of the upper fixing block corresponding to the bent plate, and second cylindrical pins are fixed on the part of the lower fixing block corresponding to the sliding groove and are inserted into the sliding groove.
5. The railroad rail head inspection truck of claim 1, wherein: the probe slide plate is characterized in that at least one first blind hole is formed in the top of the probe slide plate, a second blind hole is formed in the position, corresponding to the first blind hole, of the bottom of the upper fixing block, a first spring is fixed in the first blind hole and extends into the second blind hole, and the first spring is in a compressed state under the fixed connection of the upper fixing block and the lower fixing block.
6. The application method of the flaw detection vehicle for the rail head of the railway rail is characterized by comprising the following steps of: the rail head flaw detection vehicle is the rail head flaw detection vehicle according to any one of claims 1 to 5, comprising the following steps,
S1, placing a rail head flaw detection vehicle on a steel rail to be detected, enabling a first horizontal wheel on an arc-shaped frame and a second horizontal wheel at the other end of a cross beam to be in butt joint with the rail surface of the steel rail, and enabling a first side wheel and a second side wheel to be located on the inner side of the steel rail and in butt joint with the inner side surface of the steel rail;
S2, rotating the screw to enable the magnet seat to deflect at an angle relative to the first side wheel frame so as to adjust the distance between the powerful magnet and the inner side surface of the steel rail, and adjusting the adsorption force between the powerful magnet and the steel rail so as to ensure that the first side wheel is always abutted against the inner side surface of the steel rail in the walking process;
S3, after the adjustment in the step S2 is finished, the fastening screw is rotated to enable the upper fixing block and the lower fixing block to loosen the bent plate, at the moment, under the action of the first spring, the upper fixing block moves upwards relative to the adjusting screw, at the moment, the whole probe assembly can be moved along the sliding groove, after the adjustment is finished, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to achieve fixation, the adjustment of the horizontal position of the probe relative to the rail surface of the steel rail is achieved, the position of the probe relative to the rail surface of the steel rail is adjusted, the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block, and therefore the vertical distance between the probe and the rail surface of the steel rail to be detected is adjusted;
S4, after the position of the probe in the step S3 relative to the rail surface of the steel rail is adjusted, the height of the handle is adjusted through the pitching angle adjusting component, so that a comfortable handle holding state of a worker is achieved, after the position of the handle is adjusted, the worker pushes the handle to enable the flaw detection vehicle to integrally move along the track of the steel rail, and the probe is used for detecting the damage condition of the rail surface of the steel rail and transmitting information to the flaw detector.
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| CN201911394620.7A CN111003019B (en) | 2019-12-30 | 2019-12-30 | Flaw detection vehicle for rail head of railway rail and use method thereof |
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| 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 |
| CN113030269A (en) * | 2021-04-15 | 2021-06-25 | 中南大学 | Ultrasonic online detection device and online detection method for rail bottom defects of steel rail |
| CN113406293B (en) * | 2021-06-18 | 2022-10-14 | 广东韶钢松山股份有限公司 | Flaw detection vehicle and flaw detector |
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| CN107505397A (en) * | 2017-09-18 | 2017-12-22 | 四川曜诚无损检测技术有限公司 | A kind of in-service rail flange of rail tunneling boring method of detection and device |
| CN110412137A (en) * | 2019-09-09 | 2019-11-05 | 中铁宝桥集团有限公司 | A kind of steel rail ultrasonic flaw detecting vehicle |
| CN211567965U (en) * | 2019-12-30 | 2020-09-25 | 南京博克纳自动化系统有限公司 | Railway rail head flaw detection vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107505397A (en) * | 2017-09-18 | 2017-12-22 | 四川曜诚无损检测技术有限公司 | A kind of in-service rail flange of rail tunneling boring method of detection and device |
| CN110412137A (en) * | 2019-09-09 | 2019-11-05 | 中铁宝桥集团有限公司 | A kind of steel rail ultrasonic flaw detecting vehicle |
| CN211567965U (en) * | 2019-12-30 | 2020-09-25 | 南京博克纳自动化系统有限公司 | Railway rail head flaw detection vehicle |
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Inventor after: Xu Zhongshan Inventor after: Liu Weifeng Inventor after: Guo Youwen Inventor after: Yang Yongtian Inventor before: Xu Zhongshan Inventor before: Liu Weifeng Inventor before: Guo Youwen Inventor before: Yang Yongtian |