CN111003019A - Railway rail head flaw detection vehicle and using method thereof - Google Patents
Railway rail head flaw detection vehicle and using method thereof Download PDFInfo
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- CN111003019A CN111003019A CN201911394620.7A CN201911394620A CN111003019A CN 111003019 A CN111003019 A CN 111003019A CN 201911394620 A CN201911394620 A CN 201911394620A CN 111003019 A CN111003019 A CN 111003019A
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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
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- G01N27/902—Arrangements for scanning by moving the sensors
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Abstract
The invention relates to a railway steel rail head flaw detection vehicle and a using method thereof, and the railway steel rail head flaw detection vehicle comprises 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 installed at two ends of the bottom of the arc-shaped frame, the probe position adjusting assembly is installed at the middle part 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, the detection part of each probe is ensured not to deviate, the detection accuracy is improved, and the easily damaged surface of the steel rail can be covered by integrating a plurality of probes, so that the detection efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of steel rail detection, in particular to a railway steel rail head flaw detection vehicle and a using method thereof.
Background
The rail defect that uses on high-speed railway or the subway directly influences the operation safety of high-speed railway, high-speed railway or subway are at the operation in-process, produce friction, the extrusion to the rail, make the rail produce the crackle, the inside has some micro defects when the rail leaves the factory in addition, the rail is under the long-time repetitive action of high-speed railway, produce the crackle easily, fall the sediment, defects such as fracture, the rail internal defect also can crescent, under the fatigue stress effect, very easily break, seriously influence driving safety, consequently, need regularly detect the rail, take place the crack and the shrinkage cavity defect on eddy current detection rail railhead surface through the test probe. The defect that the straight line steel rail section can be detected by using the large-scale detection vehicle with the locomotive to walk on the straight line steel rail in the prior art, and when the damage of the turnout switch rail part passing in and out of a station is detected, because the turnout switch rail has a bent part, the damage of the bent part cannot be detected by using the large-scale detection vehicle with the locomotive to walk, when the turnout switch rail part is detected, the manual detector is used for detecting through manpower, the efficiency is low, and the omission is easy.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a railway steel rail head flaw detection vehicle and a use method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a railway steel rail head flaw detection vehicle comprises a flaw detector and a pitching frame, wherein the flaw detector is installed on the pitching frame, the flaw detector further comprises an arc-shaped frame, a cross beam, a probe position adjusting assembly and a side wheel assembly, one side wall of the arc-shaped frame is fixedly connected with one end of the cross beam, first horizontal wheels are installed at two ends of the bottom of the arc-shaped frame respectively, the probe position adjusting assembly is installed at the middle part of the arc-shaped frame, the two ends of the bottom of the inner side wall of the arc-shaped frame are fixed with the side wheel assembly respectively, the side wheel assembly comprises a magnet seat and a first side wheel frame, the two side walls of the magnet seat are respectively connected with the first side wheel frame in a rotating mode, the first side wheel frame is fixedly connected with the corresponding side wall of the arc-shaped frame, 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, the other end of the beam is provided with a second horizontal wheel and a second side wheel, and the pitching frame is arranged on the beam.
Preferably, a magnetic gap adjusting plate is fixed on the magnet seat, two ends of the magnetic gap adjusting plate are respectively in threaded connection with screws, and one end of each screw abuts against the corresponding first side wheel frame.
In any of the above schemes, preferably, the top of the magnet base penetrates through the swing shaft, the first side wheel frame is sleeved on the swing shaft so that the magnet base can rotate relative to the first side wheel frame, and two ends of the swing shaft extend to the outer side of the first side wheel frame and are respectively fixed with an outer diameter collar so that the swing shaft and the first side wheel frame do not separate.
In any of the above schemes, preferably, the probe position adjusting assembly includes a fixing frame and a probe assembly, the fixing frame includes a plurality of bending plates arranged at equal intervals, the plurality of bending plates are fixed by two connecting rods, two side walls of each bending plate are respectively provided with a sliding chute, the probe assembly is installed between adjacent bending plates, and the bending plates on 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, 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 from top to bottom, 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 connection with a probe sliding plate, a probe is mounted on the probe sliding plate and faces towards the 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 is connected with the lower fixing block 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 fixed block corresponding to the bent plate, and a second cylindrical pin is fixed on the lower fixed block corresponding to the sliding groove and inserted into the sliding groove.
In any of the above schemes, preferably, the top of the probe sliding plate is provided with at least one first blind hole, the bottom of the upper fixing block is provided with a second blind hole at a position 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.
It is preferred in any one of the above-mentioned schemes, the one end top of crossbeam is rotated and is connected with first pivot, be fixed with the connecting plate that can dismantle fast in the first pivot, the both ends difference fixed support board of connecting plate, every single move frame forms U type structure, the bottom of every single move frame is located between two backup pads, and the lateral wall of every single move frame rotates through second pivot and adjacent backup pad to be connected, every single move frame carries out pitch angle regulation for the backup pad through pitch angle adjusting part, the open end of every single move frame rotates and is connected with the handle, the appearance of detecting a flaw is installed at every single move frame inboardly.
Preferably in any one of the above schemes, the pitching frame inboard of flaw detector top is rotated and is connected with place the platform, place the platform's both sides are articulated the bracing piece respectively, the lateral wall bottom of bracing piece is fixed with the round pin axle, the slide opening has been seted up on the both sides wall of pitching frame respectively, a plurality of spacing grooves have been seted up on the diapire of slide opening, the round pin axle is inserted and is used for supporting place the platform in one of them spacing inslot, place the platform is fixed with the baffle near the one end of flaw detector.
The invention also provides a use method of the railway steel rail head flaw detection vehicle, the rail head flaw detection vehicle is any one of the rail head flaw detection vehicles, and the method comprises the following steps,
s1, placing the railhead flaw detection vehicle on a steel rail to be detected, enabling the first horizontal wheel on the arc-shaped frame and the second horizontal wheel at the other end of the cross beam to be abutted against the rail surface of the steel rail, and enabling the first side wheel and the second side wheel to be positioned on the inner side of the steel rail and to be abutted against 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 strong magnet and the inner side surface of the steel rail, adjust the adsorption force between the strong magnet and the steel rail and 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 is completed in the step S2, 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 move along the sliding groove, after the adjustment is completed, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to realize fixation, the horizontal position of the probe relative to the rail surface of the steel rail is adjusted, the position of the probe relative to the rail surface of the steel rail is adjusted, and the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block so as to adjust the vertical distance;
and S4, after the position of the probe relative to the rail surface of the steel rail is adjusted in the step S3, the height of the handle is adjusted through the pitching angle adjusting assembly so that the handle can be comfortably held by a worker, after the position of the handle is adjusted, the worker pushes the handle to enable the whole flaw detection vehicle to 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 railway steel rail head flaw detection vehicle and the use method thereof provided by the invention have the following beneficial effects:
1. when the flaw detection vehicle travels on the switch blade part of the turnout through the adsorption of the powerful magnet and the inner side surface of the steel rail, the first side wheel is always abutted against the inner side surface of the steel rail without shaking, the detection part of each probe is ensured not to deviate, the detection accuracy is improved, and the manufacturing cost is low;
2. the probes are arranged among the bent 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 surface of the rail head, and the probes can cover the vulnerable surface of the steel rail, so that the detection efficiency is greatly improved;
3. through every single move angle adjusting part's setting, can adjust the inclination of every single move frame according to different staff's height to reach the most comfortable angle and promote the every single move frame, the relative crossbeam of every single move frame can rotate, makes things convenient for the staff to keep comfortable promotion posture in the rail inboard or the rail outside and walks around, improves comfort level and convenience.
Drawings
FIG. 1 is a schematic overall structure view of a preferred embodiment of a railroad rail head flaw detector vehicle provided by the present invention;
FIG. 2 is an enlarged view of the structure of the embodiment of FIG. 1 in which the arc-shaped frame, the probe position adjusting assembly and the side wheel assembly are connected;
FIG. 3 is a schematic structural view of a side wheel assembly of the embodiment shown in FIG. 1;
FIG. 4 is another schematic structural view of the embodiment shown in FIG. 3;
FIG. 5 is a schematic diagram of the probe position adjustment assembly of the embodiment of FIG. 1;
FIG. 6 is a schematic structural 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 side cross-sectional view of the embodiment shown in FIG. 7;
FIG. 9 is a schematic view of the pawl block coupled to the ratchet teeth of the embodiment of FIG. 1;
FIG. 10 is a schematic view of the connection between the slide hole and the pin shaft in the embodiment of FIG. 1;
FIG. 11 is a schematic view of the connection between the connection plate and the support plate in the embodiment of FIG. 1;
FIG. 12 is a top view of the web in the embodiment of FIG. 11;
FIG. 13 is a schematic structural view of the cross member of the embodiment of FIG. 1;
fig. 14 is a schematic structural view of an arc-shaped frame in the embodiment shown in fig. 1.
The figures are labeled as follows: 1. a pitching frame; 2. an arc-shaped frame; 3. a cross beam; 4. bending a 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. fastening screws; 15. a second cylindrical pin; 16. an upper fixed block; 17. a lower fixed block; 18. a probe slide plate; 19. a probe housing; 20. a probe liner; 21. a first spring; 22. a handle; 23. a steel wire locking wheel; 24. a flaw detector; 25. placing a platform; 26. a slide hole; 27. a support plate; 28. positioning blocks; 29. a pawl block; 30. a second side wheel; 31. a pin shaft; 32. a screw; 33. a connecting plate; 34. mounting holes; 35. a notch; 36. a threaded hole; 37. and a through hole.
Detailed Description
In order that the invention may be further understood, the invention will now be described in detail with reference to specific examples.
As shown in fig. 1-14, an embodiment of the rail head flaw detection vehicle for a railway rail provided by the present invention includes a flaw detector 24, a pitching frame 1, wherein the flaw detector 24 is mounted on the pitching frame 1, and further includes an arc frame 2, a beam 3, a probe position adjusting assembly, and a side wheel assembly, wherein one side wall of the arc frame 2 is fixedly connected to one end of the beam 3, two ends of the bottom of the arc frame 2 are respectively mounted with a first horizontal wheel, the middle of the arc frame 2 is mounted with the probe position adjusting assembly, two ends of the bottom of the inner side wall of the arc frame 2 are respectively fixed with the side wheel assembly, the side wheel assembly includes a magnet base 9 and a first side wheel frame 7, two side walls of the magnet base 9 are respectively rotatably connected to the first side wheel frame 7, the first side wheel frame 7 is fixedly connected to the corresponding side wall of the arc frame 2, the first side wheel frame 7 is connected to a first side wheel 10, the bottom of the magnet seat 9 is fixed with a strong magnet 8, the first side wheel 10 is always abutted against the side surface of the steel rail under the adsorption of the strong magnet 8 and the steel rail, the other end of the beam 3 is provided with a second horizontal wheel and a second side wheel 30, and the pitching frame 1 is arranged on the beam 3. The first side wheel 10 is only arranged on the inner side face of the steel rail to be detected, the first side wheel 10 is always tightly attached to the inner side face of the steel rail through the adsorption of the powerful magnet 8 and the inner side face of the steel rail, the detection walking process is not shaken, the detection part of each probe is not deviated, the detection accuracy is improved, meanwhile, the second side wheel 30 is also arranged on the other steel rail, and the defect that a flaw detection vehicle derails due to the appearance problem of the switch rail when the switch rail (railway turnout) is crossed is prevented.
A magnetic gap adjusting plate 6 is fixed on the magnet seat 9, two ends of the magnetic gap adjusting plate 6 are respectively in threaded connection with screws, one end of each screw is propped against the corresponding first side wheel frame 7, namely one end of each screw is in contact with the corresponding first side wheel frame and is attached to the first side wheel frame under the adsorption of the powerful magnet. Through the rotation screw, adjust the length that the screw stretches out on magnetic gap regulating plate 6, thereby make magnetic gap regulating plate 6 can remove along the axial direction of screw first side wheel carrier 7 relatively, because magnet seat 9 rotates with first side wheel carrier 7 to be connected, so magnetic gap regulating plate 6's removal 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 to influence the flaw detection car along the walking of rail surface, can also make first side wheel 10 and the inseparable laminating of rail medial surface not break away from, and the regulation of adsorption affinity size is also convenient for detect the rail of multiple width, and application scope is wide.
The top of the magnet seat 9 penetrates through the swing shaft 11, the first side wheel frame 7 is sleeved on the swing shaft 11 so that the magnet seat can rotate relative to the first side wheel frame, and two ends of the swing shaft 11 extend to the outer side of the first side wheel frame 7 and are respectively fixed with an outer diameter clamping ring so that the swing 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, the fixing frame comprises a plurality of bent plates 4 which are arranged at equal intervals, the bent plates 4 are fixed through two connecting rods, sliding grooves 5 are respectively formed in two side walls of each bent plate 4, the probe assembly is arranged between every two adjacent bent plates 4, and the bent plates 4 on the upper edge of the fixing frame are respectively fixedly connected with the bottoms of the adjacent arc-shaped frames 2; 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 of the probe moving back and forth relative to the steel rail is the width direction of the steel rail.
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 and 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, a thread is arranged on 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 sliding plate 18 in a threaded manner, inwards concave limiting grooves are respectively formed in two side walls in the groove, clamping blocks extend outwards from two side walls of the probe sliding plate respectively, the clamping blocks are inserted into the limiting grooves to prevent the probe sliding plate from rotating along with the adjusting screw, so that the probe sliding plate can only move up and down along with the rotation of the adjusting screw, the probe sliding plate 18 is provided with a probe facing a part to be detected of the steel rail, the probe is connected with the flaw detector 24, the adjusting screw drives the probe sliding plate to adjust the distance between the probe and the part to be detected of the steel rail, and the upper fixing block 16 and the lower fixing block 17 are connected through the fastening screw 14. The adjusting screw 12 is a stainless steel high-head knurled screw, the fastening screw 14 is a stainless steel knurled screw which does not fall off, the probe comprises a probe shell 19 and a probe lining core 20, the probe shell 19 is fixed on a probe sliding plate 18, the probe lining core 20 is installed at the bottom of the probe shell 19, a plurality of probes are integrated, each probe can be adjusted along the shape of the head, a single probe only scans a fraction of the surface of the head, and the plurality of probes can cover the vulnerable surface of the steel rail, so that the detection efficiency is greatly improved.
By rotating the adjusting screw 12, the probe sliding plate 18 is positioned in the groove, and under the blocking of the groove, the probe sliding 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 lower fixing block 17 corresponding to the sliding groove 5, and the second cylindrical pin 15 is inserted into the sliding groove 5.
The probe sliding plate is characterized in that the top of the probe sliding plate 18 is provided with at least one first blind hole, the bottom of the upper fixing block 16 corresponding to the first blind hole is provided with a second 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.
The fastening screw 14 is rotated to loosen the upper fixing block 16 and the lower fixing block 17, the upper fixing block 16 moves upwards under the action of the elastic force of the spring and is separated from the lower fixing block 17, so that the first cylindrical pin 13 moves upwards relative to the second cylindrical pin 15 to loosen the bent plate 4, the probe assembly can be moved along the sliding groove 5 at the moment, the horizontal position of the probe on the rail surface of the steel rail is adjusted, different parts of the rail surface of the steel rail can be detected, after the horizontal position is adjusted, the fastening screw 14 is screwed again to fix the upper fixing block 16 and the lower fixing block 17, so that the first cylindrical pin 13 and the second cylindrical pin 15 clamp the bent plate 4, and the fixing of the probe assembly is realized.
The one end top of crossbeam 3 is rotated and is connected with first pivot, be fixed with the connecting plate that can dismantle fast in the first pivot, the both ends difference fixed support board 27 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 the lateral wall of every single move frame rotates through the second pivot and is connected with adjacent backup pad, every single move frame 1 carries out every single move angle regulation for backup pad 27 through every single move angle adjusting part, the open end of every single move frame rotates and is connected with the handle, the appearance of detecting a flaw is installed at every single move frame inboardly. Because the connecting plate is fixed with first pivot, the top of first pivot and crossbeam is rotated and is connected to make the relative crossbeam of every single move frame use the axis of first pivot as the centre of a circle rotatory, make things convenient for operating personnel to promote the every single move frame through the handle in arbitrary direction.
Furthermore, the connecting plate is fixed with the first rotating shaft through a tightening screw, a mounting hole is formed in the center of the connecting plate, notches are formed in the connecting plates on two sides of the mounting hole, one end of each notch is communicated with the mounting hole, a through hole is formed in the connecting plate on one side of each notch, a threaded hole is formed in the connecting plate on the other side of each notch, the center lines of the through holes and the threaded holes are communicated with each other on the same straight line and through the notches, the through holes and the threaded holes penetrate through the side walls of the connecting plates, the center line of each through hole is perpendicular to the horizontal center line of each notch, a through hole and a threaded hole are formed in each of two sides of each mounting hole, when the connecting plate is installed with the first rotating shaft, the mounting hole is sleeved on the first rotating shaft, then the tightening screw penetrates through the through holes to be in threaded connection with the threaded holes, the fixing of the connecting plate and the first rotating shaft is realized.
Specifically, the pitching angle adjusting assembly comprises a steel wire locking wheel 23 and a pawl block 29, a plurality of ratchet teeth are arranged at the top of the supporting plate 27, the pawl block 29 is slidably connected to one side wall of the pitching frame 1, wherein a positioning block 28 is fixed to one side wall of the pitching frame 1, a through chute 5 is arranged on the side wall of the positioning block 28 opposite to the pitching frame 1, the pawl block 29 is inserted into the chute 5 and can move, a pawl matched with the ratchet teeth is arranged at one end of the pawl block 29, a second spring is connected to the other end of the pawl block 29, the pawl block 29 enables the pawl to be inserted into the corresponding ratchet teeth under the action of the elastic force of the second spring, so that the angle of the pitching frame 1 is limited and supported, a limiting block is fixed to the side wall of the pitching frame 1 on the same side as the second spring, and the limiting block is fixedly connected to the second spring, so that the second spring is in a compressed state, one end of the handle 22 extends to the outer side of the pitching frame 1, a steel wire tightening wheel is sleeved on the handle 22 on the outer side, the steel wire tightening wheel is connected with the pawl block 29 through a steel wire, the steel wire penetrates through the limiting block and the second spring, the steel wire is tightened by the steel wire locking wheel 23 through rotation of the handle 22, so that the pawl block 29 is separated from ratchet teeth, the pitching degree of the pitching frame 1 can be adjusted according to heights of different workers at the moment, the pitching frame 1 is pushed at the most comfortable angle, and the second spring, the limiting block and the steel wire are not drawn in the drawing.
1 inboard of every single move frame of 24 tops of flaw detector is rotated and is connected with place the platform 25, place the platform 25's both sides are the articulated bracing piece respectively, the lateral wall bottom of bracing piece is fixed with round pin axle 31, slide opening 26 has been seted up on the both sides wall of every single move frame 1 respectively, a plurality of spacing grooves have been seted up on slide opening 26's the diapire, round pin axle 31 is inserted and is used for supporting place the platform 25 in one of them spacing inslot, place the platform 25 and be close to the one end of flaw detector 24 and be fixed with the baffle, place the computer on the place the platform 25, insert in the spacing inslot of difference through removal round pin axle 31, can change place the platform 25's inclination to change the. The flaw detector 24 is connected with the computer and 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 crossbeam 3, the second horizontal wheel can rotate relative to the crossbeam, the second side wheel 30 is connected to a second side wheel frame, and the second side wheel frame is fixedly connected with the crossbeam 3. The second side wheel frame is a right-angle plate, the second side wheel 30 is rotatably connected to the bottom of the right-angle plate, when the detection is carried out, the second horizontal wheel is placed at the top of another steel rail, and the second side wheel 30 is attached to the inner side face 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, as the screw is in threaded connection with the first side wheel frame, the screw 32 is rotated, the magnet seat can deflect relative to the first side wheel frame in an angle, the distance between the strong 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 during walking without influencing walking, 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, the upper fixing block 16 moves upwards relative to the adjusting screw 12 under the action of the first spring 21, 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 the adjustment is completed, the fastening screw 14 is screwed again, the first cylindrical pin 13 and the second cylindrical pin 15 mutually clamp the bent plate 4 to realize fixation, the adjusting screw 12 is rotated, and as the adjusting screw 12 is in threaded, and the probe sliding plate is positioned in the groove to limit rotation, so that the probe sliding plate 18 can move up and down to adjust the height of the probe relative to the rail surface of the steel rail.
The invention also provides a use method of the railway steel rail head flaw detection vehicle, the rail head flaw detection vehicle is any one of the rail head flaw detection vehicles, and the method comprises the following steps,
s1, placing the railhead flaw detection vehicle on a steel rail to be detected, enabling the first horizontal wheel on the arc-shaped frame and the second horizontal wheel at the other end of the cross beam to be abutted against the rail surface of the steel rail, and enabling the first side wheel and the second side wheel to be positioned on the inner side of the steel rail and to be abutted against 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 strong magnet and the inner side surface of the steel rail, adjust the adsorption force between the strong magnet and the steel rail and 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 is completed in the step S2, 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 move along the sliding groove, after the adjustment is completed, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to realize fixation, the horizontal position of the probe relative to the rail surface of the steel rail is adjusted, the position of the probe relative to the rail surface of the steel rail is adjusted, and the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block so as to adjust the vertical distance;
and S4, after the position of the probe relative to the rail surface of the steel rail is adjusted in the step S3, the height of the handle is adjusted through the pitching angle adjusting assembly so that the handle can be comfortably held by a worker, after the position of the handle is adjusted, the worker pushes the handle to enable the whole flaw detection vehicle to 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 understood by those skilled in the art that the present invention includes any combination of the summary and detailed description of the invention described above and those illustrated in the accompanying drawings, which is not intended to be limited to the details and which, for the sake of brevity of this description, does not describe every aspect which may be formed by such combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a railway steel 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: also comprises an arc-shaped frame, a cross beam, a probe position adjusting component and a side wheel component, wherein one side wall of the arc-shaped frame is fixedly connected with one end of the cross beam, the two ends of the bottom of the arc-shaped frame are respectively provided with a first horizontal wheel, the middle part of the arc-shaped frame is provided with the probe position adjusting component, the two ends of the bottom of the inner side wall of the arc-shaped frame are respectively fixed with the side wheel assembly, 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 rotationally connected with the first side wheel frame which is fixedly connected with the corresponding side wall of the arc frame, the first side wheel frame is connected with a first side wheel, the bottom of the magnet seat is fixed with a strong magnet, the first side wheel is always abutted against the side surface of the steel rail under the adsorption of the strong magnet and the steel rail, the other end of the beam is provided with a second horizontal wheel and a second side wheel, and the pitching frame is arranged on the beam.
2. The railroad rail head flaw detection vehicle of claim 1, wherein: a magnetic gap adjusting plate is fixed on the magnet seat, two ends of the magnetic gap adjusting plate are respectively in threaded connection with screws, and one end of each screw abuts against the corresponding first side wheel carrier.
3. The railroad rail head flaw detection vehicle of claim 1, wherein: the top of the magnet seat penetrates through the swing shaft, the first side wheel frame is sleeved on the swing shaft so that the magnet seat can rotate relative to the first side wheel frame, and two ends of the swing shaft extend to the outer side of the first side wheel frame and are respectively fixed with an outer diameter clamping ring so that the swing shaft is not separated from the first side wheel frame.
4. The railroad rail head flaw detection vehicle of claim 1, wherein: the probe position adjusting assembly comprises a fixing frame and a probe assembly, 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 formed in two side walls of each bent plate respectively, the probe assembly is installed between every two adjacent bent plates, and the bent plates on 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.
5. The railroad rail head flaw detection vehicle of claim 4, wherein: the utility model discloses a probe, including the probe mount, go up the fixed block and the fixed block of fixing, the fixed block is equipped with the adjusting screw, and the adjusting screw is relative, and the fixed block can rotate, set up the recess that link up down on the lateral wall of fixed block, adjusting screw's one end extends into in the recess and the screw thread has cup jointed the probe slide, install the probe on the probe slide, and the probe is towards the rail and wait to detect the position, adjusting screw drive probe slide is with the distance between the position is detected to adjusting probe and rail, go up the fixed block and connect through fastening screw between the fixed block down.
6. The railroad rail head flaw detection vehicle of claim 5, wherein: at least two first cylindrical pins are fixed on the side wall, corresponding to the bent plate, of the upper fixing block, and second cylindrical pins are fixed on the portion, corresponding to the sliding groove, of the lower fixing block and inserted into the sliding groove.
7. The railroad rail head flaw detection vehicle of claim 5, wherein: the probe sliding plate is characterized in that the top of the probe sliding 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.
8. The railroad rail head flaw detection vehicle of claim 1, wherein: the one end top of crossbeam is rotated and is connected with first pivot, be fixed with the connecting plate that can dismantle fast in the first pivot, the both ends difference fixed support board of connecting plate, every single move frame forms U type structure, every single move frame is located between two backup pads, and the lateral wall of every single move frame rotates through second pivot and adjacent backup pad to be connected, every single move frame carries out every single move angle regulation for the backup pad through every single move angle adjusting part, the open end of every single move frame rotates and is connected with the handle, the appearance of detecting a flaw is installed at every single move frame inboardly.
9. The railroad rail head flaw detection vehicle of claim 8, wherein: the inboard every single move frame of appearance top of detecting a flaw is rotated and is connected with place the platform, place the both sides of platform articulate the bracing piece respectively, the lateral wall bottom of bracing piece is fixed with the round pin axle, the slide opening has been seted up on the both sides wall of every single move frame respectively, a plurality of spacing grooves have been seted up on the diapire of slide opening, the round pin axle is inserted and is used for supporting place the platform in one of them spacing inslot, place the platform is fixed with the baffle near the one end of the appearance of detecting a flaw.
10. A use method of a railway steel rail head flaw detection vehicle is characterized by comprising the following steps: the railhead flaw detection vehicle as claimed in any one of claims 1 to 9, comprising the steps of,
s1, placing the railhead flaw detection vehicle on a steel rail to be detected, enabling the first horizontal wheel on the arc-shaped frame and the second horizontal wheel at the other end of the cross beam to be abutted against the rail surface of the steel rail, and enabling the first side wheel and the second side wheel to be positioned on the inner side of the steel rail and to be abutted against 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 strong magnet and the inner side surface of the steel rail, adjust the adsorption force between the strong magnet and the steel rail and 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 is completed in the step S2, 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 move along the sliding groove, after the adjustment is completed, the fastening screw is screwed again, the first cylindrical pin and the second cylindrical pin clamp the bent plate mutually to realize fixation, the horizontal position of the probe relative to the rail surface of the steel rail is adjusted, the position of the probe relative to the rail surface of the steel rail is adjusted, and the adjusting screw is rotated to enable the probe sliding plate to move up and down relative to the lower fixing block so as to adjust the vertical distance;
and S4, after the position of the probe relative to the rail surface of the steel rail is adjusted in the step S3, the height of the handle is adjusted through the pitching angle adjusting assembly so that the handle can be comfortably held by a worker, after the position of the handle is adjusted, the worker pushes the handle to enable the whole flaw detection vehicle to 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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| 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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| 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 |
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| CN111003019B (en) | 2024-05-07 |
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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 |