A rail detection device based on ultrasonic waves

Abstract

The present invention belongs to the technical field of railway detection equipment, and in particular to an ultrasonic-based rail detection device. In view of the fact that current rail detection devices cannot achieve all-weather detection and also have safety hazards, the following scheme is proposed, including a main box, the bottom of which is fixed with a track chassis by bolts, and rail bodies are also provided on both sides of the main box, and support mechanisms are provided on both sides of the main box. During the detection work of the device of the present invention, the processor in the device is connected to the railway network to obtain vehicle passing information in real time, and obtains surrounding information in real time through two phased array radars. Preparations for the vehicle to pass are made before the vehicle passes. At this time, the support mechanism is retracted and lowered to the lowest position. The device as a whole is located in the middle of the track, and its height ensures that the passing of the train will not be affected. The device has a built-in battery and can be charged by solar energy, realizing unmanned all-weather detection.

Description

Technical Field

[0001] The present invention relates to the technical field of railway detection equipment, and in particular to an ultrasonic-based rail detection device. Background Art

[0002] Track inspection is a professional technology used in railway engineering to evaluate the condition of tracks. It is mainly carried out through high-speed comprehensive inspection trains, track inspection vehicles and other equipment. With the iteration of inspection technology, track inspection is shifting from single parameter analysis to multi-source data fusion. Ultrasonic inspection uses high-frequency electromagnetic waves to scan the track structure, combined with image processing and signal analysis technology to evaluate and analyze the interior of the rails.

[0003] For example, the Chinese patent document with publication number CN116788310A discloses a rail detection system for urban rail transit, which belongs to the field of rail detection technology and includes a main module, a cleaning module and two test modules. The main module includes a movable plate, the bottom of the movable plate is fixedly connected to four support rods, and a rotating shaft is rotatably connected between every two support rods. Both ends of the two rotating shafts are fixedly connected to rollers, and a display device is fixedly installed on the top of the movable plate; the above patent disclosure technology has the following problems: when the above device detects the rail, it occupies the railway track and cannot guarantee the smooth passage of trains on the railway. It must be detected during the no-train period, and there are certain risks during the no-train period. Therefore, the above device cannot achieve all-weather detection and there are also safety hazards. The existing technology is not easy to solve such problems. Therefore, there is an urgent need for an ultrasonic-based rail detection device to solve the above problems. Summary of the Invention

[0004] Since current rail detection devices cannot achieve all-weather detection and still have potential safety hazards, the present invention proposes a rail detection device based on ultrasound.

[0005] The present invention proposes an ultrasonic-based rail detection device, comprising a main box, a crawler chassis fixed to the bottom of the main box by bolts, rail bodies disposed on both sides of the main box, and support mechanisms disposed on both sides of the main box;

[0006] Support mechanism: includes four first electric push rods hingedly installed on the side wall of the main box, and the four first electric push rods at the side wall are distributed at both ends of the main box and installed in a symmetrical manner in pairs. The two first electric push rods located at the same end are hingedly installed on the same extension rack, and an ultrasonic detection rack is fixed between the tops of the two extension racks by bolts. A corrugated hose is provided between the ultrasonic detection rack and the main box. A detection top rack is hingedly installed on one side of the ultrasonic detection rack, and an ultrasonic probe is slidably installed inside the detection top rack. A battery and a processor are installed inside the main box.

[0007] Preferably, the outer walls of the two first electric push rods located at the top of the support mechanism are fixed with first electric push rod fixing blocks, a connecting cross frame is installed between the two first electric push rod fixing blocks through bearings, a second electric push rod is hingedly installed at the middle position of the connecting cross frame, and the bottom of the second electric push rod is hingedly installed to the side wall of the main box.

[0008] Preferably, a rotatable locking frame is hingedly installed on the top of the extension frame, a first servo is installed inside the extension frame, the output shaft of the first servo is fixed to the rotating shaft of the locking frame, a driving wheel frame is hingedly installed on the bottom of the locking frame, a second servo is installed on the bottom of the locking frame, and the output shaft of the second servo at the bottom of the locking frame is fixed to the rotating shaft of the driving wheel frame, and a driving roller is installed on the top of the driving wheel frame.

[0009] Preferably, a first positioning roller is mounted vertically on one side of the extension frame via a bearing, and a second positioning roller is mounted horizontally on the bottom of one side of the extension frame via a bearing.

[0010] Preferably, a horizontally arranged solar panel is fixed to the top of the main box by bolts, and the solar panel is electrically connected to the battery and the processor by wires.

[0011] Preferably, phased array radars are fixed to the middle positions of both ends of the main chassis by bolts, and the two phased array radars are electrically connected to the processor inside the main chassis.

[0012] Preferably, the driving roller, the first positioning roller and the second positioning roller are all positioned and engaged with the rail body in the support mode, and the driving roller, the first positioning roller and the second positioning roller are in rolling contact with the outer wall of the rail body.

[0013] Preferably, a coupling agent spraying top frame is hingedly fixed to one side of the ultrasonic detection frame, and four coupling agent spraying heads distributed in an array are fixed to the bottom of the coupling agent spraying top frame. The four coupling agent spraying heads are electrically connected to the processor. A third servo is fixed to the corresponding position of the ultrasonic detection frame on the coupling agent spraying top frame, and the output shaft of the third servo is fixed to the rotating shaft of the coupling agent spraying top frame.

[0014] Preferably, a coupling agent coating top frame is hingedly installed in the middle position of one side of the ultrasonic detection frame, and a fourth steering gear is fixed to the corresponding position of the coupling agent coating top frame on the ultrasonic detection frame, and the output shaft of the fourth steering gear is fixed to the rotating shaft of the coupling agent coating top frame, and a cavity is provided at the bottom of the coupling agent coating top frame, and coating swing frames are installed at both ends of the cavity of the coupling agent coating top frame through bearings, and fifth steering gears are nested and installed on the inner walls of both ends of the coupling agent coating top frame, and the output shaft of the fifth steering gear is fixed to the rotating shaft of the coating swing frame, and the top and bottom of the coating swing frame are both mounted through bearings There is a smear swing frame roller, and limiting rollers are installed at both ends of the cavity of the coupling agent smearing top frame through bearings. Tensioning roller slides are opened on both sides of the coupling agent smearing top frame, and a tensioning roller slider is installed inside the tensioning roller slide. The tensioning roller sliders on both sides are installed with tensioning roller fixing blocks through bearings, and a tensioning roller is fixed between the tensioning roller fixing blocks on both sides. A third electric push rod is installed inside the tensioning roller slide, and one end of the third electric push rod is fixed to the tensioning roller slider. The same smearing belt is sleeved between the outer walls of the smear swing frame roller, the limiting roller and the tensioning roller.

[0015] Preferably, a fourth electric push rod is fixed inside the detection top frame, the fourth electric push rod is in a vertically fixed state, and the bottom of the fourth electric push rod is fixed to the top of the ultrasonic probe.

[0016] The beneficial effects of the present invention are:

[0017] 1. This ultrasonic-based rail detection device, during its detection process, connects its internal processor to the railway network to obtain real-time information about vehicle passage, and uses two phased array radars to obtain real-time surrounding information. Preparations are made before a vehicle passes, and the support mechanism retracts and descends to its lowest position. The device is positioned in the middle of the track, at a height that ensures that passing trains are not affected. The device has a built-in battery and can be recharged by solar energy, enabling unmanned, all-weather detection.

[0018] 2. This ultrasonic-based rail inspection device uses a coupling agent coating frame that descends, and the coating belt contacts and squeezes the top of the rail body. The rotation of the coating belt evenly spreads the coupling agent, filling the micropores on the surface of the rail body. The device moves, and the fourth electric push rod in the detection frame controls the ultrasonic probe to descend and fit the surface of the rail body to perform ultrasonic flaw detection on the rail body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the ultrasonic-based rail detection device proposed in the present invention;

[0020] Figure 2This is a schematic diagram of the overall structure of an ultrasonic-based rail detection device proposed in the present invention;

[0021] Figure 3 This is a schematic diagram of the partial structure of the support mechanism of an ultrasonic-based rail detection device proposed in the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of an ultrasonic probe of an ultrasonic rail detection device proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the coupling agent coating top frame of the ultrasonic-based rail inspection device proposed by the present invention;

[0024] Figure 6 The present invention proposes an ultrasonic rail detection device Figure 5 Schematic diagram of the enlarged structure of part A in .

[0025] In the figure: 1. Main chassis; 2. Phased array radar; 3. Track chassis; 4. Solar roof panel; 5. Rail body; 6. Extension frame; 7. Locking frame; 8. Drive wheel frame; 9. Drive roller; 10. First electric push rod; 11. Connecting cross frame; 12. Corrugated hose; 13. First electric push rod fixing block; 14. Second electric push rod; 15. First positioning roller; 16. Second positioning roller; 17. Ultrasonic detection frame; 18. Couplant spraying top frame; 19. Couplant coating top frame; 20. Detection top frame; 21. Couplant nozzle; 22. Coating swing frame; 23. Coating swing frame roller; 24. Ultrasonic probe; 25. Coating belt; 26. Limiting roller; 27. Tensioning roller; 28. Tensioning roller slider; 29. ​​Tensioning roller fixing block; 30. Tensioning roller chute; 31. Third electric push rod. DETAILED DESCRIPTION

[0026] Reference Figures 1-6 A rail detection device based on ultrasonic wave comprises a main box 1, a crawler chassis 3 is fixed to the bottom of the main box 1 by bolts, rail bodies 5 are provided on both sides of the main box 1, and support mechanisms are provided on both sides of the main box 1;

[0027] Support mechanism: includes four first electric push rods 10 hingedly installed on the side wall of the main box 1, and the four first electric push rods 10 on the side wall are distributed at both ends of the main box 1 and are installed in a symmetrical manner in pairs. The two first electric push rods 10 at the same end are hingedly installed with the same extension frame 6, and an ultrasonic detection frame 17 is fixed between the tops of the two extension frames 6 by bolts. A corrugated hose 12 is sleeved between the ultrasonic detection frame 17 and the main box 1, and a detection top frame 20 is hingedly installed on one side of the ultrasonic detection frame 17. An ultrasonic probe 24 is slidably installed inside the detection top frame 20. A battery and a processor are installed inside the main box 1; a coupling agent delivery pipeline and power communication cables are arranged inside the corrugated hose 12.

[0028] Furthermore, the outer walls of the two first electric push rods 10 at the top of the support mechanism are fixed with first electric push rod fixing blocks 13, and a connecting cross frame 11 is installed between the two first electric push rod fixing blocks 13 through bearings. The middle position of the connecting cross frame 11 is hingedly installed with a second electric push rod 14, and the bottom of the second electric push rod 14 is hingedly installed with the side wall of the main box 1; through the telescopic control of the first electric push rod 10 and the second electric push rod 14, the support mechanism as a whole is adjusted, so that the support mechanisms on both sides can be easily stretched and engaged with the rail body 5 and retracted to the middle of the rail for storage.

[0029] Furthermore, a rotatable locking frame 7 is hingedly installed on the top of the extension frame 6, a first servo is installed inside the extension frame 6, the output shaft of the first servo is fixed to the rotating shaft of the locking frame 7, a driving wheel frame 8 is hingedly installed on the bottom of the locking frame 7, a second servo is installed on the bottom of the locking frame 7, and the output shaft of the second servo at the bottom of the locking frame 7 is fixed to the rotating shaft of the driving wheel frame 8, a driving roller 9 is installed on the top of the driving wheel frame 8; after the driving roller 9 is engaged with the rail body 5, the entire device is driven to move.

[0030] Furthermore, a first positioning roller 15 is vertically installed on one side of the extension frame 6 through a bearing, and a second positioning roller 16 is horizontally installed on the bottom of one side of the extension frame 6 through a bearing; the first positioning roller 15 and the second positioning roller 16 are clamped with the rail body 5, so that the entire device is stably clamped, ensuring the stability of the device during movement.

[0031] Furthermore, a horizontally arranged solar panel 4 is fixed to the top of the main box 1 by bolts, and the solar panel 4 is electrically connected to the battery and the processor through wires; the solar energy is converted into electrical energy by the solar panel 4 and stored in the battery, thereby ensuring the power supply of the device and ensuring stable operation around the clock.

[0032] Furthermore, phased array radars 2 are fixed to the middle positions of both ends of the main chassis 1 by bolts, and the two phased array radars 2 are electrically connected to the processor inside the main chassis 1; when the phased array radars 2 are in operation, the device can visualize the surrounding environment and ensure the safety of the device's operation.

[0033] Furthermore, the driving roller 9 , the first positioning roller 15 and the second positioning roller 16 are all positioned and engaged with the rail body 5 in the support mode, and the driving roller 9 , the first positioning roller 15 and the second positioning roller 16 are in rolling contact with the outer wall of the rail body 5 .

[0034] Furthermore, a coupling agent spraying top frame 18 is hingedly fixed to one side of the ultrasonic testing frame 17. Four coupling agent spray heads 21 distributed in an array are fixed to the bottom of the coupling agent spraying top frame 18. The four coupling agent spray heads 21 are electrically connected to the processor. A third servo is fixed to the corresponding position of the ultrasonic testing frame 17 at the coupling agent spraying top frame 18, and the output shaft of the third servo is fixed to the rotating shaft of the coupling agent spraying top frame 18.

[0035] Furthermore, a coupling agent coating top frame 19 is hingedly installed in the middle position of one side of the ultrasonic testing frame 17. A fourth servo is fixed to the corresponding position of the coupling agent coating top frame 19 on the ultrasonic testing frame 17, and the output shaft of the fourth servo is fixed to the rotating shaft of the coupling agent coating top frame 19. A cavity is provided at the bottom of the coupling agent coating top frame 19, and coating swing frames 22 are installed at both ends of the cavity of the coupling agent coating top frame 19 through bearings. Fifth servos are nested and installed on the inner walls of both ends of the coupling agent coating top frame 19, and the output shaft of the fifth servo is fixed to the rotating shaft of the coating swing frame 22. Coating swing frame rollers 23 are installed at the top and bottom of the coating swing frame 22 through bearings. Limiting rollers 26 are installed at both ends of the cavity of the coupling agent coating top frame 19 through bearings, and tensioning roller chutes 30 are opened on both sides of the coupling agent coating top frame 19. A tensioning roller slider 28 is slidingly installed inside the tensioning roller chute 30, and the tensioning roller sliders 28 on both sides are installed with tensioning roller fixing blocks 29 through bearings. A tensioning roller 27 is fixed between the tensioning roller fixing blocks 29 on both sides, and a third electric push rod 31 is installed inside the tensioning roller chute 30. One end of the third electric push rod 31 is fixed to the tensioning roller slider 28, and the same coating belt 25 is sleeved between the outer walls of the coating swing frame roller 23, the limiting roller 26 and the tensioning roller 27.

[0036] Furthermore, a fourth electric push rod is fixed inside the detection top frame 20 . The fourth electric push rod is in a vertically fixed state, and the bottom of the fourth electric push rod is fixed to the top of the ultrasonic probe 24 .

[0037] When the present invention is used: When in use, the detection device starts to position and support the rail bodies 5 on both sides from the initial position where it is placed, performs three-dimensional simulation of the surroundings of the device through two phased array radars 2, and controls the support mechanisms on both sides through the processor, controls the extension and contraction of the first electric push rod 10, brings the extension frame 6 close to the rail body 5, and combines the control of the second electric push rod 14 to position the first positioning roller 15 and the second positioning roller 16 to engage with the rail body 5, and the first and second steering gears control the locking frame 7 and the driving wheel frame 8 on the top to lock the driving roller 9 with the rail body 5. The bottom of the entire supported device is in a suspended state, and the device is controlled to move on the rail body 5 through the driving roller 9;

[0038] The solar panel 4 can convert solar energy into electrical energy and store it in a battery for use by the device. When performing ultrasonic testing on the rail body 5, three steps are required: coupling agent spraying - coupling agent uniform coating - ultrasonic probe testing. The coupling agent pipeline is set in the corrugated hose 12 and is sprayed on the top of the rail body 5 through the coupling agent nozzle 21. The device moves, the coupling agent coating top frame 19 descends, and the coating belt 25 contacts and squeezes the top of the rail body 5. The rotation of the coating belt 25 evenly spreads the coupling agent, filling the micropores on the surface of the rail body 5. The device moves, and the fourth electric push rod in the testing top frame 20 controls the ultrasonic probe 24 to descend and fit the surface of the rail body 5 to perform ultrasonic flaw detection on the rail body 5.

[0039] During the detection process, the processor in the device connects to the railway network to obtain real-time vehicle passing information, and obtains surrounding information in real time through two phased array radars 2. Preparations are made for the vehicle to pass before it passes. At this time, the support mechanism is retracted and lowered to the lowest position. The device is located in the middle of the track. Its height ensures that the passing of trains will not be affected. The device has a built-in battery and can be charged by solar energy, realizing unmanned all-weather detection.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An ultrasonic-based rail detection device, comprising a main box (1), characterized in that: The bottom of the main box (1) is fixed with a crawler chassis (3) by bolts, and rail bodies (5) are also provided on both sides of the main box (1), and support mechanisms are provided on both sides of the main box (1); The supporting mechanism comprises four first electric push rods (10) hingedly mounted on the side wall of the main case (1), and the four first electric push rods (10) on the side wall are distributed at both ends of the main case (1) and are symmetrically mounted in pairs, and the two first electric push rods (10) at the same end are hingedly mounted on the same extension frame (6), an ultrasonic detection frame (17) is fixed between the tops of the two extension frames (6) by bolts, a corrugated hose (12) is sleeved between the ultrasonic detection frame (17) and the main case (1), a detection top frame (20) is hingedly mounted on one side of the ultrasonic detection frame (17), an ultrasonic probe (24) is slidably mounted inside the detection top frame (20), and a battery and a processor are installed inside the main case (1); Phased array radars (2) are fixed to the middle positions of both ends of the main chassis (1) by bolts, and the two phased array radars (2) are electrically connected to the processor inside the main chassis (1). A coupling agent coating top frame (19) is hingedly installed at the middle position of one side of the ultrasonic detection frame (17). A fourth servo is fixed to the ultrasonic detection frame (17) at a corresponding position of the coupling agent coating top frame (19), and the output shaft of the fourth servo is fixed to the rotating shaft of the coupling agent coating top frame (19). A cavity is provided at the bottom of the coupling agent coating top frame (19). Coating swing frames (22) are installed at both ends of the cavity of the coupling agent coating top frame (19) through bearings. A fifth servo is nested and installed on the inner walls of both ends of the coupling agent coating top frame (19), and the output shaft of the fifth servo is fixed to the rotating shaft of the coating swing frame (22). The coating swing frame (22) The top and bottom of the coupling agent smearing frame are both installed with a smearing frame roller (23) through bearings, and both ends of the cavity of the coupling agent smearing frame (19) are installed with a limit roller (26) through bearings. A tensioning roller chute (30) is opened on both sides of the coupling agent smearing frame (19), and a tensioning roller slider (28) is slidably installed inside the tensioning roller chute (30). The tensioning roller sliders (28) on both sides are installed with tensioning roller fixing blocks (29) through bearings. A tensioning roller (27) is fixed between the tensioning roller fixing blocks (29) on both sides. A third electric push rod (31) is installed inside the tensioning roller chute (30), and one end of the third electric push rod (31) is fixed to the tensioning roller slider (28). The same smearing belt (25) is sleeved between the outer walls of the smearing frame roller (23), the limit roller (26) and the tensioning roller (27).

2. The ultrasonic rail detection device according to claim 1, characterized in that: The outer walls of the two first electric push rods (10) located at the top of the support mechanism are both fixed with first electric push rod fixing blocks (13), a connecting cross frame (11) is installed between the two first electric push rod fixing blocks (13) via a bearing, a second electric push rod (14) is hingedly installed at the middle position of the connecting cross frame (11), and the bottom of the second electric push rod (14) is hingedly installed with the side wall of the main box (1).

3. The ultrasonic rail detection device according to claim 1, characterized in that: The top of the extension frame (6) is hingedly mounted with a rotatably mounted locking frame (7), a first steering gear is mounted inside the extension frame (6), an output shaft of the first steering gear is fixed to a rotating shaft of the locking frame (7), a driving wheel frame (8) is hingedly mounted at the bottom of the locking frame (7), a second steering gear is mounted at the bottom of the locking frame (7), and the output shaft of the second steering gear at the bottom of the locking frame (7) is fixed to a rotating shaft of the driving wheel frame (8), and a driving roller (9) is mounted on the top of the driving wheel frame (8).

4. The ultrasonic rail detection device according to claim 3, characterized in that: A first positioning roller (15) is installed vertically on one side of the extension frame (6) via a bearing, and a second positioning roller (16) is installed horizontally on the bottom of one side of the extension frame (6) via a bearing.

5. The ultrasonic rail detection device according to claim 4, characterized in that: A horizontally arranged solar top panel (4) is fixed to the top of the main box (1) by means of bolts, and the solar top panel (4) is electrically connected to the battery and the processor by means of wires.

6. The ultrasonic rail detection device according to claim 4, characterized in that: The driving roller (9), the first positioning roller (15) and the second positioning roller (16) are all positioned and clamped with the rail body (5) in the support mode, and the driving roller (9), the first positioning roller (15) and the second positioning roller (16) are in a rolling contact state with the outer wall of the rail body (5).

7. The ultrasonic rail detection device according to claim 1, characterized in that: A coupling agent spraying top frame (18) is hingedly fixed to one side of the ultrasonic detection frame (17), and four coupling agent spraying heads (21) distributed in an array are fixed to the bottom of the coupling agent spraying top frame (18). The four coupling agent spraying heads (21) are electrically connected to the processor. A third steering gear is fixed to a corresponding position of the ultrasonic detection frame (17) on the coupling agent spraying top frame (18), and the output shaft of the third steering gear is fixed to the rotating shaft of the coupling agent spraying top frame (18).

8. The ultrasonic rail detection device according to claim 1, characterized in that: A fourth electric push rod is fixed inside the detection top frame (20), the fourth electric push rod is in a vertically fixed state, and the bottom of the fourth electric push rod is fixed to the top of the ultrasonic probe (24).

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