CN115236204A - Automatic adjusting device for steel rail flaw detection sliding shoe type probe - Google Patents
Automatic adjusting device for steel rail flaw detection sliding shoe type probe Download PDFInfo
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- CN115236204A CN115236204A CN202211078774.7A CN202211078774A CN115236204A CN 115236204 A CN115236204 A CN 115236204A CN 202211078774 A CN202211078774 A CN 202211078774A CN 115236204 A CN115236204 A CN 115236204A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 13
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- 238000007689 inspection Methods 0.000 claims description 2
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- 239000007822 coupling agent Substances 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 6
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- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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Abstract
The invention relates to a steel rail flaw detection technology, which is used for solving the problem that the ultrasonic detection precision is reduced because an ultrasonic probe deviates from a centered position on a steel rail in the steel rail flaw detection process, in particular to an automatic adjusting device of a steel rail flaw detection sliding shoe type probe, and the automatic adjusting device comprises a vehicle body fixing platform, an operating computer and a mainframe box; according to the invention, through the support of the two steel rail flaw detection devices which are connected into a whole through the centering connecting rod, the condition that the detection precision of the steel rail flaw detection device is reduced due to position deviation can not occur, when the bending position on the steel rail body is moved, the ultrasonic detector in the outer support can adjust whether the position of the ultrasonic probe is deviated or not through a signal sent by the ultrasonic probe, so that the flaw detection data of the steel rail flaw detection device on the steel rail is more accurate, the water-absorbing sponge is extruded to discharge the internal coupling agent onto the steel rail body in the rotation process of the separated integrated encoder, and the coating of the coupling agent is less interfered by external environmental factors.
Description
Technical Field
The invention relates to a steel rail flaw detection technology, in particular to an automatic adjusting device for a steel rail flaw detection sliding shoe type probe.
Background
At present, the flaw detection of steel rail base metals at home and abroad mainly comprises three modes, namely a large-scale steel rail flaw detection vehicle, a double-rail type steel rail flaw detector and a hand-push type steel rail flaw detector, and the advantages and the disadvantages of the three flaw detection modes are very obvious;
the probe of the large-scale steel rail flaw detection vehicle adopts a wheel type structure, the highest detection speed can reach 80km/h, the detection efficiency is high, the probe is suitable for lines with good steel rail surface state and large curve radius, the probe is mainly used for lines with higher grade such as high-speed rails and intercity at present, the accuracy of the application of a common speed railway with poor rail surface state and small curve radius is still to be improved, the cost of a single rail reaches more than 2500 ten thousands, and the cost and the maintenance cost are high; the probe of the double-track steel rail flaw detector also adopts a wheel type structure, the highest detection speed is 15km/h, the detection efficiency is moderate, the double-track steel rail flaw detector is also suitable for lines and sections with better steel rail surface states, the same problem of a flaw detection vehicle also exists in a small radius curve, and the flaw detector is heavy in overall equipment weight due to self-powered power, cannot evacuate the line at any time, can be used only by arranging a construction skylight, has certain safety risk in the use process, and is suitable for lines with long time in a V-shaped skylight or a vertical skylight; the hand-push type steel rail flaw detector probe adopts a single probe frame structure, can accurately position and quantify, but has low operation efficiency, the highest detection speed can only reach 3km/h, the average detection speed is about 2km/h, and the detection of the single-stranded steel rail needs 2 persons to be matched, so the detection speed is slow, more manpower is needed, the operation of completely taking the steel rail into a skylight has great difficulty and great labor safety hidden danger;
in the process of flaw detection of the steel rail by adopting an ultrasonic detector, in order to ensure that ultrasonic waves emitted by an ultrasonic probe can completely reach the inside of the steel rail body for transmission and prevent the condition of wave splitting in the transmission process, a couplant spraying system is mostly utilized for spraying a couplant, the couplant is easily influenced by external environmental factors in the spraying process, so that the sprayed couplant does not completely fall onto the steel rail body, the detection of the ultrasonic waves is adversely affected, and the couplant sprayed to the outer side of the steel rail body is not used, so that the waste of the couplant is caused;
in view of the above technical problem, the present application proposes a solution.
Disclosure of Invention
The invention aims to solve the problem that the detection precision of steel rail flaw detection equipment is reduced due to the fact that two steel rail flaw detection equipment which are connected into a whole are supported by a centering connecting rod, when a bending position on a steel rail body moves, an ultrasonic detector in an outer support can adjust whether the position of the ultrasonic probe deviates or not through signals sent by the ultrasonic probe, so that the flaw detection data of the steel rail flaw detection equipment on the steel rail is more accurate, a water-absorbing sponge is squeezed to discharge an internal couplant onto the steel rail body in the rotation process of a separation integrated encoder, the coating of the couplant is less interfered by external environmental factors, the problem that the ultrasonic detection precision is reduced due to the fact that the ultrasonic probe deviates from the middle position on the steel rail in the flaw detection process of the steel rail is solved, and the automatic adjusting device for the steel rail flaw detection sliding shoe type probe is provided.
The purpose of the invention can be realized by the following technical scheme:
the automatic adjusting device for the steel rail flaw detection sliding shoe type probe comprises a vehicle body fixing table, an operating computer and a mainframe box, wherein the upper surface of the vehicle body fixing table is connected with the mainframe box, the upper surface of the mainframe box is connected with the operating computer through a connecting support, two sides of the outer side wall of the vehicle body fixing table are connected with an outer support through centering connecting rods, a steel rail body is arranged below the outer support, a steel rail flaw detection assembly is arranged on the inner side wall of the outer support, and a connecting rod adjusting assembly is arranged at one end, close to the outer support, of each centering connecting rod;
the mainframe box is internally provided with a processor which is in communication connection with a data acquisition unit, a data storage unit and a data processing unit;
the data acquisition unit is used for acquiring time data between the time when the ultrasonic wave is emitted and the time when the reflected sound wave is received in the process of carrying out ultrasonic detection on the two steel rails, and uploading the acquired time data to the data storage unit for storage;
the data storage unit is used for storing the time data transmitted by the data acquisition unit and identifying the stored data according to the receiving time;
the data processing unit is used for calling and processing time data stored in the data storage unit, transmitting the distance deviation data obtained after the time data is processed to an operating computer for displaying, and calling corresponding data according to corresponding identification in the calling process;
the operation computer is used for displaying the distance deviation data processed by the data processing unit and displaying the distance deviation data according to the time sequence transmitted by the data processing unit.
As a preferred embodiment of the invention, the outer side wall of the outer bracket is connected with a fixing band corresponding to the position of the water tank, one side of the outer side wall of the water tank is integrally formed with a main water outlet, two sides of the inner side wall of the outer bracket are rotatably connected with a separated integrated encoder through a driving shaft, the middle position of one side of the outer side wall of the outer bracket is connected with a probe adjusting motor, the position of the inner side wall of the outer bracket corresponding to the output end of the probe adjusting motor is connected with a second screw rod, the lower part of the inner side wall of the outer bracket, which is close to the second screw rod, is connected with an optical axis, the middle position of the outer side wall of the second screw rod is connected with an adjusting bracket in a sliding manner, and the middle position of the inner side wall of the adjusting bracket is connected with an ultrasonic probe.
As a preferred embodiment of the present invention, the connecting rod adjusting assembly includes a bearing fixing plate, a sliding cavity is formed in an end of the centering connecting rod corresponding to the bearing fixing plate, a supporting shaft is connected to the inside of the sliding cavity through a telescopic spring, a first lead screw is rotatably connected to a middle position of the other side of the outer side wall of the outer bracket through a rotating base, and a connecting rod adjusting motor is connected to a middle position of the outer side wall of the bearing fixing plate corresponding to the first lead screw.
As a preferred embodiment of the invention, the separation integrated type encoder comprises a wheel rim, a roller, a connecting bearing and a shaft type encoder, wherein the roller is connected to the middle position of the outer side wall of the shaft type encoder through the connecting bearing, and the wheel rim is connected to the position, close to the roller, of the outer side wall of the shaft type encoder through the connecting bearing.
In a preferred embodiment of the present invention, the data acquisition unit acquires data through the ultrasound probe by the following specific steps:
the method comprises the following steps: the ultrasonic detector vertically sends out an ultrasonic signal from the position of an ultrasonic probe connected with the ultrasonic detector, the ultrasonic detector sends the ultrasonic signal and transmits the signal to the processor, a data acquisition unit in the processor performs timing, the ultrasonic signal is reflected when a transmission medium is changed in the process of downward transmission in the steel rail body, the reflected signal is transmitted back to the ultrasonic probe and received by the ultrasonic probe, the ultrasonic detector transmits the signal to the processor, the data acquisition unit in the processor stops timing, the data acquisition unit performs timing data value recording and transmits the acquired data to the data storage unit;
step two: the data storage unit groups and identifies time data values generated by one or more transmitted reflection signals according to the ultrasonic signals transmitted by corresponding times, so that the one or more reflection signals in a group all have the reflection effect of the same transmitted ultrasonic signal, the data processing unit calls the data values stored by the data storage unit while the data storage unit stores the data, and when the data processing unit calls the group of data, if the reflection signal receiving time data values in the group of data are smaller than the preset data values, the data processing unit transmits signals to the data acquisition unit to acquire the data again at the position;
step three: after receiving the signal fed back by the data processing unit, the processor controls the ultrasonic detector to switch the transmission direction of the detection signal, so that the ultrasonic signal transmitted from the position of the ultrasonic probe is a vertical offset signal, the data acquisition unit performs timing while the ultrasonic signal is transmitted, the ultrasonic detector transmits the signal to the processor while the reflected signal is returned and transmitted to the ultrasonic probe, the data acquisition unit in the processor stops timing, the data acquisition unit performs recording of a timing data value, and transmits the acquired data to the data storage unit.
As a preferred embodiment of the present invention, the data processing unit processes the data in the data storage unit specifically as follows:
the method comprises the following steps: after the data processing unit calls the data in the data storage unit, judging the called data group, comparing the data group with the mark by adopting a preset value of a normal vertical signal, and comparing the data group without the mark by adopting a preset value of an offset vertical signal;
step two: when the data set with the identification is compared with the preset value of the normal vertical signal, the data processing unit transmits a signal to the processor, the data acquisition unit is used for reacquiring data at the corresponding position, when the data processing unit detects that the data value in the data set has the preset value smaller than the normal vertical signal, the data processing unit detects that the data value in the data set has the preset value larger than the vertical signal when the data processing unit detects that the data value in the data set has the preset value smaller than the vertical signal when the data processing unit does not have the identification, the probe adjusting motor drives the ultrasonic probe to move to the right, and the data processing unit drives the ultrasonic probe to move to the left when the data processing unit detects that the data value in the data set has the preset value smaller than the vertical signal.
As a preferred embodiment of the invention, the coating assembly comprises a liquid guide pipe, one end of the liquid guide pipe, which is far away from the couplant box, is connected with an attaching plate, the position of the outer side wall of the liquid guide pipe, which is close to the attaching plate, is connected with a switch valve, one side of the outer side wall of the driving shaft is connected with a driving gear, one side of the inner side wall of the outer support, which is close to the separation integrated encoder, is rotatably connected with a cleaning roller through a connecting rotating shaft, the position of the outer side wall of the connecting rotating shaft, which corresponds to the driving gear, is connected with a transmission gear, the outer side wall of the cleaning roller is connected with a plurality of uniformly distributed bristles, the position of the outer side wall of the attaching plate, which corresponds to the bristles, is integrally formed with a dirt blocking plate, and the outer side wall of the separation integrated encoder is connected with water absorption sponge.
Compared with the prior art, the invention has the beneficial effects that:
1. the two steel rail flaw detection devices connected into a whole are supported by the centering connecting rod, so that the steel rail flaw detection device is more stable in the process of moving the position on the steel rail body, the condition that the detection precision of the steel rail flaw detection device is reduced due to position deviation can not occur, and when the steel rail flaw detection device moves at the bending position on the steel rail body, an ultrasonic detector in the outer support can adjust whether the position of the ultrasonic probe deviates or not through a signal sent by the ultrasonic probe, so that the flaw detection data of the steel rail flaw detection device on the steel rail is more accurate;
2. the inside couplant of drain pipe can be discharged to the sponge that absorbs water inside from the drain hole on the binding plate, and the sponge that absorbs water is discharged the inside couplant to the rail body by the extrusion at separation integral type encoder rotation in-process, and the coating of couplant receives external environment factor's interference less, and the sponge that absorbs water and rail body in close contact with, and the sponge that absorbs water internal coupling agent that appears to paint on the rail body, can not cause the waste of couplant.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a view showing the structure of the main body of the present invention;
FIG. 2 is an internal structure view of the external frame of the present invention;
FIG. 3 is a flow chart of the rail inspection system of the present invention;
FIG. 4 is a diagram of a couplant tank of the present invention;
fig. 5 is a structural view of a cleaning roller of the present invention.
In the figure: 1. a vehicle body fixing table; 2. a centering connecting rod; 3. a bearing fixing plate; 4. a support shaft; 5. a first lead screw; 6. operating the computer; 7. a main chassis; 8. a water tank; 9. fixing belts; 10. a total water discharge port; 11. an outer support; 12. separating the integrated encoder; 13. a steel rail body; 14. an ultrasonic probe; 15. a second lead screw; 16. an adjusting bracket; 17. a probe adjusting motor; 18. an optical axis; 19. a couplant tank; 20. a base plate; 21. a catheter; 22. an on-off valve; 23. a dirt blocking plate; 24. a drive gear; 25. a transmission gear; 26. brushing; 27. a cleaning roller; 28. connecting the rotating shaft; 29. a water-absorbing sponge; 30. a drive shaft; 31. and (7) laminating the plates.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-3, the automatic adjusting device for the rail flaw detection sliding shoe type probe comprises a vehicle body fixing table 1, an operating computer 6 and a main case 7, wherein the main case 7 is connected to the upper surface of the vehicle body fixing table 1, the operating computer 6 is connected to the upper surface of the main case 7 through a connecting support, two outer supports 11 are connected to two sides of the outer side wall of the vehicle body fixing table 1 through centering connecting rods 2, the two outer supports 11 are respectively arranged at two ends of the centering connecting rods 2, a rail body 13 is arranged below the outer supports 11, a rail flaw detection assembly is arranged on the inner side wall of each outer support 11, and a connecting rod adjusting assembly is arranged at one end, close to the outer supports 11, of the centering connecting rods 2;
the steel rail flaw detection assembly comprises a water tank 8, water flow is contained in the water tank 8 to increase the weight of the steel rail flaw detection assembly, the running stability of the steel rail flaw detection assembly on a steel rail body 13 is improved, a fixing belt 9 is connected to the position, corresponding to the position of the water tank 8, of the outer side wall of an outer support 11, the water tank 8 is stably connected to the upper portion of the outer support 11 through the fixing belt 9, a main water outlet 10 is integrally formed in one side of the outer side wall of the water tank 8 to facilitate taking and using of the water flow in the water tank 8 by workers and facilitate adjustment of the weight of the water tank 8 by the workers, a separating integrated encoder 12 is rotatably connected to two sides of the inner side wall of the outer support 11 through a rotating shaft, the separating integrated encoder 12 comprises a wheel flange, a roller wheel, a connecting bearing and a shaft encoder, the roller wheel is connected to the middle position of the outer side wall of the shaft encoder through the connecting bearing, the position, close to the roller wheel, is connected to the outer side wall of the shaft encoder through the connecting bearing, the roller is placed on the steel rail body 13 to roll through friction, the wheel rim and the side wall of the steel rail body 13 rub with each other to drive rotation, the radius of the wheel rim is larger than that of the roller, when the wheel rim and the roller rotate on the steel rail body 13 due to mutual friction, the rotation speed is different, but the difference does not cause influence with each other, a shaft encoder connected with the roller cannot generate larger error due to the rotation of the wheel rim in the following rotation process, the middle position of the outer side wall of the wheel rim is connected with an annular pressure sensing pad, the pressure sensing pad can detect pressure data between the wheel rim and the steel rail body 13, the middle position of one side of the outer side wall of the outer bracket 11 is connected with a probe adjusting motor 17, the output end of the probe adjusting motor 17 is connected with a second lead screw 15, the position of the inner side wall of the outer bracket 11, which corresponds to the output end of the probe adjusting motor 17, is connected with the second lead screw 15, an optical axis 18 is connected to the inner side wall of the outer bracket 11 close to the lower part of the second screw rod 15, an adjusting bracket 16 is connected to the middle position of the outer side wall of the second screw rod 15 in a sliding manner, a threaded hole is formed in the position, corresponding to the second screw rod 15, of the adjusting bracket 16, a sliding hole is formed in the position, corresponding to the optical axis 18, of the adjusting bracket 16, and an ultrasonic probe 14 is connected to the middle position of the inner side wall of the adjusting bracket 16;
the connecting rod adjusting assembly comprises a bearing fixing plate 3, one end of the centering connecting rod 2 is connected with the bearing fixing plate 3, a sliding cavity is formed in one end, corresponding to the bearing fixing plate 3, of the centering connecting rod 2, the size of the inner dimension of the sliding cavity is the same as that of the supporting shaft 4, the supporting shaft 4 is connected to the inside of the sliding cavity through a telescopic spring, a first lead screw 5 is rotatably connected to the middle position of the other side of the outer side wall of the outer support 11 through a rotating base, the bearing fixing plate 3 is driven to adjust the distance between the bearing fixing plate and the outer support 11 under the limitation of the supporting shafts 4 on two sides through the rotation of the first lead screw 5, a connecting rod adjusting motor is connected to the middle position of the outer side wall of the bearing fixing plate 3, corresponding to the position of the first lead screw 5, the output end of the connecting rod adjusting motor is connected with the first lead screw 5, and the bearing fixing plate 3 is driven to move through the rotation of the first lead screw 5;
a processor is arranged in the mainframe box 7 and is in communication connection with a data acquisition unit, a data storage unit, a data processing unit and an operating computer;
the data acquisition unit is used for acquiring time data from the time when the ultrasonic wave is emitted to the time when the ultrasonic wave is received in the process of performing ultrasonic detection on the two steel rails by the ultrasonic acquisition system, and uploading the acquired data to the data storage unit for storage; the data storage unit is used for storing the data transmitted by the data acquisition unit and identifying the stored data according to the receiving time; the data processing unit is used for calling and processing the data stored in the data storage unit, transmitting the processed data to the operating computer for display, and calling corresponding data according to corresponding identification in the calling process; the operation computer is used for displaying the data processed by the data processing unit and displaying the data according to the time sequence transmitted by the data processing unit;
the preset value F of the offset vertical signal is a time data value from the offset ultrasonic signal sent by the ultrasonic probe 14 to the reception of the reflected ultrasonic signal when the ultrasonic probe 14 is located at the central position on the steel rail body 13, and the preset value N of the normal vertical signal is a time data value from the vertical ultrasonic signal sent by the ultrasonic probe 14 to the reception of the reflected ultrasonic signal when the ultrasonic probe 14 is located at the central position on the steel rail body 13;
the use method of the automatic adjusting device of the steel rail flaw detection sliding shoe type probe comprises the following specific steps:
the method comprises the following steps: the ultrasonic detector vertically sends an ultrasonic signal downwards from the position of an ultrasonic probe 14 connected with the ultrasonic detector, the ultrasonic detector transmits the ultrasonic signal to the processor while sending the ultrasonic signal, a data acquisition unit in the processor performs timing, the ultrasonic signal is reflected when a transmission medium is changed in the process of downward transmission in the steel rail body 13, a first reflected signal is returned to be transmitted to the ultrasonic probe 14 and received by the ultrasonic probe 14, the ultrasonic detector transmits the signal to the processor, the data acquisition unit in the processor stops timing, the data acquisition unit records a timing data value as S1, the timing data values reflected back after the first reflected signal are respectively recorded as S2, S3, once, sn, and the acquired data are transmitted to a data storage unit;
step two: the data storage unit groups and identifies time data values generated by one or more transmitted reflected signals according to the ultrasonic signals transmitted by corresponding times, so that the one or more reflected signals in a group all have the reflection effect of the same transmitted ultrasonic signal, the data storage unit calls the data values stored by the data storage unit while storing data, the data processing unit indicates that the position of the ultrasonic probe 14 on the steel rail body 13 is deviated when calling the group of data and if the reflection signal receiving time data value in the group of data is smaller than a preset value N of a normal vertical signal, and the data processing unit transmits a signal to the data acquisition unit to acquire the data at the position again;
step three: after receiving a signal fed back by the data processing unit, the processor controls the ultrasonic detector to switch the transmission direction of a detection signal, so that the ultrasonic signal transmitted from the position of the ultrasonic probe 14 is an offset vertical signal, the data acquisition unit performs timing while the ultrasonic signal is transmitted, the ultrasonic detector transmits the signal to the processor while the first reflection signal is transmitted back to the ultrasonic probe 14, the data acquisition unit in the processor stops timing, the data acquisition unit records a timing data value as P1, the timing data values reflected back after the first reflection signal are respectively recorded as P2, P3, 9, pn, and the acquired data are transmitted to the data storage unit;
step four: after the data acquisition unit receives the feedback signal, the data acquisition unit transmits a signal to the data storage unit to change the storage mode, so that when the data storage unit stores the data group transmitted from the position of the data acquisition unit again, the data group transmitted is stored in a grouped mode in the same mode as before, but the grouped data group is not identified, so that after the data processing unit calls the data in the data storage unit, the called data group is distinguished, the data group with the identification adopts the preset value N of the normal vertical signal to carry out comparison processing, and the data group without the identification adopts the preset value of the offset vertical signal F to carry out comparison processing;
step five: when the data group without the mark is compared with the preset value F of the offset vertical signal, the data processing unit detects that the data value in the data group has the preset value F which is larger than the offset vertical signal, the data processing unit transmits the signal to the processor, so that the processor transmits the signal to the probe adjusting motor 17, the probe adjusting motor 17 rotates in an angle according to the preset rotation angle, the second screw rod 15 is driven to rotate in the rotation process, the ultrasonic probe 14 is driven to move to the right in the rotation process of the second screw rod 15 through the adjusting frame 16 which is embedded on the outer side wall of the second screw rod 15 through threads, and in the moving process, the data acquisition unit continuously acquires the ultrasonic signals sent by the ultrasonic probe 14 and sends the ultrasonic signals to the data storage unit for storage, the data processing unit calls data in the data storage unit to process and compare, when the ultrasonic probe 14 moves to the middle position of the steel rail body 13 under the action of the probe adjusting motor 17, the data processing unit compares the detected data to obtain that the detected data is the same as a preset value F of an offset vertical signal, the data processing unit transmits a signal to the processor to control the stop of the rotation of the probe adjusting motor 17, when the data processing unit detects that the data value in the data set has the preset value F smaller than the offset vertical signal, the probe adjusting motor 17 drives the adjusting frame 16 embedded on the outer side wall of the second screw rod 15 through threads to move leftwards on the second screw rod 15, and the ultrasonic probe 14 moves to the middle position of the steel rail body 13.
In the prior art, when the hand-push type steel rail flaw detection equipment is used, only a single steel rail can be detected, and the detection precision of the steel rail flaw detection equipment is reduced due to the fact that the steel rail flaw detection equipment is unstable in position deviation towards two sides in the detection moving process;
two hand-push type steel rail flaw detection devices are connected into a whole through a centering connecting rod 2, the distance between the two hand-push type steel rail flaw detection devices connected into the whole can be automatically adjusted, after the steel rail flaw detection devices are placed on a steel rail body 13, the separating integrated encoders 12 in the outer brackets 11 on two sides are respectively placed on the steel rail body 13, the pressure sensing pads on the outer sides of the wheel rims of the separating integrated encoders 12 do not detect pressure data, so that a controller in a main case 7 can transmit signals to a controller of a connecting rod adjusting motor, the connecting rod adjusting motor is controlled to drive a first screw rod 5 to rotate, the distance between a bearing fixing plate 3 connected with one end of the centering connecting rod 2 and the centering connecting rod 2 is increased, the distance between the two hand-push type steel rail flaw detection devices is increased, and in the distance increasing process, the wheel rims of the separating encoders 12 on two sides are continuously close to the steel rail body 13, the pressure data detected by the pressure sensor gradually increases and transmits the detected data to the controller in the mainframe box 7, when the data processing module in the controller detects that the detected data is equal to the set pressure data value, a signal is transmitted to the controller of the connecting rod adjusting motor to stop the rotation of the connecting rod adjusting motor, two steel rail flaw detection devices connected into a whole are more stable in the process of moving the position on the steel rail body 13 through the support of the centering connecting rod 2, the situation that the detection precision of the steel rail flaw detection devices is reduced due to the position deviation can not occur, when the steel rail flaw detection devices move at the bending position on the steel rail body 13, the ultrasonic detector in the outer bracket 11 can detect whether the position of the ultrasonic probe 14 deviates or not through a normal vertical signal sent by the ultrasonic probe 14, and after the displacement, the displacement direction is detected through a displacement vertical signal sent by the ultrasonic probe 14, and then the probe adjusting motor 17 is controlled to drive the second screw rod 15 to rotate forwards or backwards according to the displacement direction so as to adjust the position of the ultrasonic probe 14.
Example 2:
as shown in fig. 4-5, both sides of the outer side wall of the centering link 2 close to the mainframe box 7 are connected with a couplant box 19 through backing plates 20, one side of the outer side wall of the couplant box 19 is connected with a coating assembly through a liquid guide tube 21, the coating assembly includes a liquid guide tube 21, one end of the liquid guide tube 21 is connected below the outer side wall of the couplant box 19, the other end of the liquid guide tube 21 is connected to the upper end of a fitting plate 31, one end of the liquid guide tube 21 away from the couplant box 19 is connected with a fitting plate 31, the lower end of the fitting plate 31 is designed in an arc shape, the diameter of the arc shape is the same as the outer diameter of the annular water-absorbing sponge 29, the lower end of the fitting plate 31 is provided with a plurality of liquid guide holes which are uniformly distributed, the position of the outer side wall of the liquid guide tube 21 close to the fitting plate 31 is connected with a switch valve 22, the switch valve 22 can control the speed of liquid transmission inside the liquid guide tube 21, one side of the outer side wall of the driving shaft 30 is connected with a driving gear 24, the driving gear 24 is mutually embedded with the driving gear 25 and drives the driving gear 25 to rotate, one side wall of the integrated encoder 11 close to the inner side wall separation encoder 12 is connected with a cleaning roller 27 through a connecting shaft 28, the position of the outer side wall of the driving gear 28 is connected with a plurality of the driving gear 25, the driving gear 25 which is connected with a plurality of the integrated brush bristles 25 which is connected with a brush bristles 25 which is connected with the integrated dirt-separating sponge encoder 26, the integrated brush bristles 23, the integrated outer side wall of the integrated water-absorbing sponge encoder 23, and the integrated brush bristles 23 which is connected with the integrated outer side wall of the integrated dirt-separating encoder 12, and connected with the integrated brush bristles 23 which is connected with the integrated dirt-separating sponge encoder 23;
in the prior art, in the process of flaw detection of a steel rail by using an ultrasonic detector, in order to ensure that ultrasonic waves emitted by an ultrasonic probe 14 can all reach the inside of a steel rail body 13 for transmission and prevent the condition of wave splitting in the transmission process, a couplant spraying system is mostly used for spraying a couplant, the couplant is easily influenced by external environmental factors in the spraying process, so that the sprayed couplant does not completely fall onto the steel rail body 13, the detection of the ultrasonic waves is adversely affected, and the couplant sprayed to the outer side of the steel rail body 13 is not used, so that the waste of the couplant is caused;
the couplant contained in the couplant box 19 is transmitted from the position of the liquid guide pipe 21 to the attaching plate 31 under the action of gravity, when the steel rail flaw detection equipment moves on the steel rail body 13 to perform flaw detection operation, the roller of the separation integrated encoder 12 rotates on the steel rail body 13 in the forward direction, so that the driving gear 24 coaxial with the separation integrated encoder 12 drives the transmission gear 25 to rotate in the reverse direction by being mutually embedded with the transmission gear 25 and drives the cleaning roller 27 coaxial with the transmission gear 25 to rotate in the reverse direction, the dirt on the steel rail body 13 is swept to the opposite side of the steel rail flaw detection equipment by the bristles 26 connected with the cleaning roller 27 in the rotating process, the dirt blocking plate 23 can block the swept dirt and prevent the dirt from drifting to the water absorption sponge 29 along with wind, the detection precision of the ultrasonic detector is affected by impurities on the surface of the steel rail body 13 coated with the coupling agent, the shaft type encoder inside the separation integrated encoder 12 can transmit the data of the number of rotation turns of the driving shaft 30 to the controller inside the mainframe box 7, the controller can control the switch valve 22 to be opened and closed repeatedly according to the rotation data of the shaft type encoder, the coupling agent inside the liquid guide tube 21 can be discharged into the water absorption sponge 29 from the liquid guide hole in the attaching plate 31, the water absorption sponge 29 is extruded to discharge the internal coupling agent onto the steel rail body 13 in the rotation process of the separation integrated encoder 12, the coating of the coupling agent is slightly interfered by external environmental factors, the water absorption sponge 29 is in close contact with the steel rail body 13, the internal coupling agent in the water absorption sponge 29 is separated out on the steel rail body 13, and the waste of the coupling agent is avoided.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The automatic adjusting device for the steel rail flaw detection sliding shoe type probe comprises a vehicle body fixing table (1), an operation computer (6) and a mainframe box (7), wherein the mainframe box (7) is connected to the upper surface of the vehicle body fixing table (1), the operation computer (6) is connected to the upper surface of the mainframe box (7) through a connecting support, the automatic adjusting device is characterized in that outer supports (11) are connected to the two sides of the outer side wall of the vehicle body fixing table (1) through centering connecting rods (2), a steel rail body (13) is arranged below the outer supports (11), a steel rail flaw detection assembly is arranged on the inner side wall of the outer supports (11), connecting rod adjusting assemblies are arranged at one ends, close to the outer side wall of the centering connecting rods (2), of the two sides, close to the mainframe box (7), of the main side wall of the centering connecting rods (2) are connected with couplant boxes (19) through base plates (20), and one side of the outer side wall of each couplant box (19) is connected with a coating assembly through a liquid guide pipe (21);
the coating assembly comprises a liquid guide pipe (21), the liquid guide pipe (21) is kept away from one end of a couplant box (19) is connected with a joint plate (31), the outer side wall of the liquid guide pipe (21) is close to the joint plate (31) position, a switch valve (22) is connected to one side of the outer side wall of a driving shaft (30), a driving gear (24) is connected to the inner side wall of an outer support (11), a cleaning roller (27) is connected to one side of a separation integrated encoder (12) in a rotating mode through a connecting rotating shaft (28), the outer side wall of the connecting rotating shaft (28) corresponds to the position of the driving gear (24) and is connected with a transmission gear (25), the outer side wall of the cleaning roller (27) is connected with bristles (26) which are uniformly distributed, the joint plate (31) outer side wall corresponds to the position of the bristles (26) is integrally formed with a dirt blocking plate (23), and the outer side wall of the separation integrated encoder (12) is connected with a water absorbing sponge (29).
2. The automatic adjusting device of a steel rail flaw detection sliding shoe type probe according to claim 1, wherein a steel rail flaw detection assembly comprises a water tank (8), a fixing belt (9) is connected to a position, corresponding to the water tank (8), of the outer side wall of the outer support (11), a total water outlet (10) is integrally formed in one side of the outer side wall of the water tank (8), a separation integrated encoder (12) is rotatably connected to two sides of the inner side wall of the outer support (11) through a driving shaft (30), a probe adjusting motor (17) is connected to a middle position of one side of the outer side wall of the outer support (11), a second lead screw (15) is connected to a position, corresponding to the inner side wall of the outer support (11), of the output end of the probe adjusting motor (17), an optical axis (18) is connected to the inner side wall of the outer support (11) close to the lower portion of the second lead screw (15), an adjusting support (16) is slidably connected to a middle position of the outer side wall of the second lead screw (15), and an ultrasonic probe (14) is connected to the middle position of the inner side wall of the adjusting support (16).
3. The automatic adjusting device for the sliding shoe type probe for steel rail flaw detection according to claim 1, wherein the connecting rod adjusting assembly comprises a bearing fixing plate (3), a sliding cavity is formed in one end, corresponding to the bearing fixing plate (3), of the centering connecting rod (2), a supporting shaft (4) is connected to the inside of the sliding cavity through an expansion spring, a first lead screw (5) is rotatably connected to the middle position of the other side of the outer side wall of the outer support (11) through a rotating base, and a connecting rod adjusting motor is connected to the middle position of the outer side wall of the bearing fixing plate (3) corresponding to the position of the first lead screw (5).
4. The automatic adjustment device of a rail inspection sliding shoe probe according to claim 2, wherein the separate integrated encoder (12) comprises a wheel flange, a roller, a connecting bearing and a shaft encoder, the roller is connected to the shaft encoder at a position intermediate to the outer side wall thereof through the connecting bearing, and the wheel flange is connected to the shaft encoder at a position close to the roller on the outer side wall thereof through the connecting bearing.
5. The automatic adjusting device of the steel rail flaw detection sliding shoe type probe according to the claim 1, characterized in that a processor, a data acquisition unit, a data storage unit and a data processing unit which are connected with the processor in a communication way are arranged in the main machine box (7);
the data acquisition unit is used for acquiring time data from the time when the ultrasonic wave is sent to the time when the reflected sound wave is received in the process of carrying out ultrasonic detection on the two steel rails, and uploading the acquired time data to the data storage unit for storage;
the data storage unit is used for storing the time data transmitted by the data acquisition unit and identifying the stored data according to the receiving time;
the data processing unit is used for calling and processing time data stored in the data storage unit, transmitting the distance deviation data obtained after the time data is processed to an operating computer for displaying, and calling corresponding data according to corresponding identification in the calling process;
the operation computer (6) is used for displaying the distance deviation data processed by the data processing unit and displaying the distance deviation data according to the time sequence transmitted by the data processing unit.
6. The automatic adjusting device of the rail flaw detection sliding shoe type probe according to claim 5, wherein the data acquisition unit acquires data through the ultrasonic detector by the following specific steps:
the method comprises the following steps: the ultrasonic detector vertically sends an ultrasonic signal downwards from the position of an ultrasonic probe (14) connected with the ultrasonic detector, the ultrasonic detector sends the ultrasonic signal and transmits the signal to the processor, a data acquisition unit in the processor performs timing, the ultrasonic signal is reflected when a transmission medium is changed in the process of downward transmission in the steel rail body (13), the reflected signal is transmitted to the ultrasonic probe (14) and received by the ultrasonic probe (14), the ultrasonic detector transmits the signal to the processor, the data acquisition unit in the processor stops timing, the data acquisition unit performs timing data value recording and transmits acquired data to a data storage unit;
step two: the data storage unit groups and identifies time data values generated by one or more transmitted reflected signals according to the ultrasonic signals transmitted by corresponding times, so that the one or more reflected signals in a group all have the reflection effect of the same transmitted ultrasonic signal, the data processing unit calls the data values stored by the data storage unit while the data storage unit stores the data, and when the data processing unit calls a group of data, if the reflected signal receiving time data values in the group of data are smaller than a preset data value, the data processing unit transmits signals to the data acquisition unit to acquire the data at the position again;
step three: after receiving the signal that data processing unit fed back, the switching of detection signal transmission direction is carried out to the ultrasonic detector to the treater control, makes the ultrasonic signal that spreads from ultrasonic probe (14) position department be the vertical signal of skew, and the data acquisition unit timing when ultrasonic signal sent, and the reflection signal returns to transmit to ultrasonic probe (14) simultaneously, and the ultrasonic detector transmits the signal to the treater, and the data acquisition unit in the treater stops the timing, and the data acquisition unit carries out the record of timing data value to transmit the data of gathering for data storage unit.
7. The automatic adjusting device of the rail flaw detection sliding shoe type probe according to claim 5, wherein the data processing unit processes the data in the data storage unit by the following specific steps:
the method comprises the following steps: after the data processing unit calls the data in the data storage unit, judging the called data group, comparing the data group with the mark by adopting a preset value of a normal vertical signal, and comparing the data group without the mark by adopting a preset value of an offset vertical signal;
step two: when the data processing unit detects that any data value in the data set is larger than the preset value of the vertical shifting signal, the probe adjusting motor (17) drives the ultrasonic probe (14) to move to the right, and when the data processing unit detects that any data value in the data set is smaller than the preset value of the vertical shifting signal, the probe adjusting motor (17) drives the ultrasonic probe (14) to move to the left.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130619A (en) * | 2024-04-30 | 2024-06-04 | 福建天马电子有限公司 | Ultrasonic nondestructive inspection equipment and method for historic building structural part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020078759A1 (en) * | 1998-07-30 | 2002-06-27 | Bray Don E. | Apparatus and method for ultrasonic stress measurement using the critically refracted longitudinal ( lcr ) ultrasonic technique |
| US20160123933A1 (en) * | 2014-10-30 | 2016-05-05 | The Boeing Company | Non-destructive ultrasonic inspection apparatus, systems, and methods |
| CN108372075A (en) * | 2018-05-25 | 2018-08-07 | 江苏省特种设备安全监督检验研究院 | A kind of coupling agent daubing device applied to band large-scale metal tank surface |
| CN110514741A (en) * | 2019-09-06 | 2019-11-29 | 长春工程学院 | A kind of automatic flaw detection device and method based on ultrasonic technology |
| CN210742199U (en) * | 2019-09-09 | 2020-06-12 | 中铁宝桥集团有限公司 | Ultrasonic flaw detection vehicle for steel rail |
-
2022
- 2022-09-05 CN CN202211078774.7A patent/CN115236204B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020078759A1 (en) * | 1998-07-30 | 2002-06-27 | Bray Don E. | Apparatus and method for ultrasonic stress measurement using the critically refracted longitudinal ( lcr ) ultrasonic technique |
| US20160123933A1 (en) * | 2014-10-30 | 2016-05-05 | The Boeing Company | Non-destructive ultrasonic inspection apparatus, systems, and methods |
| CN108372075A (en) * | 2018-05-25 | 2018-08-07 | 江苏省特种设备安全监督检验研究院 | A kind of coupling agent daubing device applied to band large-scale metal tank surface |
| CN110514741A (en) * | 2019-09-06 | 2019-11-29 | 长春工程学院 | A kind of automatic flaw detection device and method based on ultrasonic technology |
| CN210742199U (en) * | 2019-09-09 | 2020-06-12 | 中铁宝桥集团有限公司 | Ultrasonic flaw detection vehicle for steel rail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130619A (en) * | 2024-04-30 | 2024-06-04 | 福建天马电子有限公司 | Ultrasonic nondestructive inspection equipment and method for historic building structural part |
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