A device for detecting cracks in ballastless railway tracks

Abstract

The present invention provides a crack detection device for a railway ballastless track, which includes a support mechanism disposed above the track, a traveling mechanism disposed at the four corners of the bottom of the support mechanism for the support mechanism to travel along the track, a detection mechanism symmetrically disposed on both sides of the bottom of the support mechanism, with its detection end facing the track, a cleaning mechanism symmetrically and fixedly disposed at both ends of the bottom of the support mechanism, and a blowing and cleaning mechanism symmetrically disposed at both ends of the bottom of the support mechanism and located on one side of the cleaning mechanism. The output end of the blowing and cleaning mechanism faces the top of the track and one side of the track. The present invention can clean the top and surface of the track, enabling the detection mechanism to more accurately detect the cracks in the track and improving the accuracy during detection.

Description

Technical Field

[0001] The present invention relates to the technical field of railway enclosure equipment, and particularly relates to a device for detecting cracks in a ballastless track of a railway. Background Art

[0002] A ballastless track refers to a track structure that uses an integral foundation such as concrete or asphalt mixture to replace the granular ballast bed, also known as a ballastless track, which is an advanced track technology in the world today. Compared with a ballasted track, a ballastless track avoids ballast splashing, has good smoothness, good stability, a long service life, good durability, less maintenance work, and the train running speed can reach more than 350 kilometers per hour. During the long-term use of the track, cracks will occur on the track. Therefore, it is necessary to detect the cracks on the track and repair them.

[0003] In the prior art, when detecting the track, since the track is in the external environment, when there is a strong wind, it is inevitable that dust and garbage will adhere to the track, and these garbage and dust will affect the detection of track cracks. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a device for detecting cracks in a ballastless track of a railway to at least solve the deficiencies in the above prior art.

[0005] The present invention provides the following technical solutions. A device for detecting cracks in a ballastless track of a railway for detecting track cracks includes:

[0006] A support mechanism, which is arranged above the track;

[0007] A traveling mechanism, which is arranged at the four corners of the bottom of the support mechanism and is used for the support mechanism to travel along the track;

[0008] A detection mechanism, which is symmetrically arranged on both sides of the bottom of the support mechanism, and its detection end faces the track;

[0009] A cleaning mechanism, which is symmetrically and fixedly arranged at both ends of the bottom of the support mechanism and includes a connecting plate, a first cleaning plate and a second cleaning plate. The connecting plate is fixedly arranged on the support mechanism, the first cleaning plate and the second cleaning plate are fixedly arranged at the bottom of the connecting plate, the first cleaning plate is arranged above the track, and the second cleaning plate is arranged on one side of the track;

[0010] A blast cleaning mechanism, which is symmetrically arranged at both ends of the bottom of the support mechanism and is located on one side of the cleaning mechanism. The output end of the blast cleaning mechanism faces the top of the track and one side of the track;

[0011] Wherein, the traveling mechanism drives the supporting mechanism to move on the track, so that the supporting mechanism drives the first cleaning plate and the second cleaning plate to clean the track through the connecting plate, and the track is cleaned by the air-blowing cleaning mechanism, so that the detection mechanism detects the cleaned track.

[0012] Compared with the prior art, the beneficial effect of the present invention is that the traveling mechanism drives the supporting mechanism to move, and the supporting mechanism drives the cleaning mechanism to move, so that the first cleaning plate and the second cleaning plate in the cleaning mechanism clean the top and side surfaces of the track. Then, the impurities swept out by the first cleaning plate and the second cleaning plate on the track are cleaned by the air-blowing cleaning mechanism, so that the surface of the track reaches a state without dust and garbage, thereby enabling the detection mechanism to more accurately detect the cracks on the track and improving the accuracy during detection.

[0013] Further, the supporting mechanism includes a support plate, a cross beam, and two connecting seats. The cross beam is fixedly arranged at the bottom of the support plate. The two connecting seats are symmetrically fixedly arranged on the traveling mechanism and are located below the support plate. An air inlet is opened at the top of the connecting seat.

[0014] Further, the traveling mechanism includes a driving shaft, traveling wheels, and a protective cover. The traveling wheels are connected to the supporting mechanism through the driving shaft. The protective cover is fixedly arranged at the bottom of the supporting mechanism and covers the traveling wheels.

[0015] Further, a through hole for the driving shaft to pass through is opened on the side wall of the protective cover.

[0016] Further, the detection mechanism includes ultrasonic probes and a crack image acquisition camera. The ultrasonic probes are fixedly arranged on both sides of the bottom of the supporting mechanism. The crack image acquisition camera is arranged on both sides of the bottom of the supporting mechanism and is arranged on one side of the ultrasonic probes.

[0017] Further, an installation plate is arranged below the supporting mechanism. The crack image acquisition camera is fixedly arranged on the installation plate. A receiving plate is connected to the side wall of the installation plate. A rotating shaft penetrates through the receiving plate. Both ends of the rotating shaft are rotatably arranged on the supporting mechanism. A telescopic plate is slidably arranged in the receiving plate. One end of the telescopic plate is connected to a driving mechanism through a hinge.

[0018] Further, the driving mechanism includes a cylinder, a transfer plate, two connecting rods, and a guiding block. A support frame is provided at the top of the support mechanism. The cylinder is fixed on the support frame. The output end of the cylinder penetrates through the support frame and is connected to the transfer plate. The two ends of the bottom of the transfer plate are respectively connected to the two connecting rods. The connecting rods penetrate through the top of the support mechanism and are connected to the guiding block. A guiding groove adapted to the guiding block is provided on the side wall of the bottom of the support mechanism, so that the guiding block is rotationally connected to the telescopic plate through the hinge.

[0019] Further, a protective frame is provided at the top of the support mechanism, and the protective frame covers the support frame.

[0020] Further, the air blowing and cleaning mechanism includes a blower, a shunt head, and two output pipes. The blower is arranged at both ends inside the bottom of the support mechanism. The output end of the blower is connected to the two output pipes through the shunt head. Both output pipes penetrate through the support mechanism. The output end of one output pipe is arranged above the track, and the output end of the other output pipe is arranged on one side of the track.

[0021] Further, a mounting seat is provided on one side of the top of the support mechanism, and a display screen is installed on the mounting seat. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the railway ballastless track crack detection device in the embodiment of the present invention;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of another perspective of the railway ballastless track crack detection device in the embodiment of the present invention;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of another perspective of the railway ballastless track crack detection device in the embodiment of the present invention;

[0025] Figure 4 It is Figure 3 The partial enlarged view at A in;

[0026] Figure 5 It is a sectional view of the connecting seat in the embodiment of the present invention;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of another perspective of the railway ballastless track crack detection device in the embodiment of the present invention;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the connecting seat, the walking wheel, and the protective cover in the embodiment of the present invention.

[0029] Description of the Main Component Symbols:

[0030]

[0031]

[0032] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0033] For ease of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention is thorough and complete.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] Please refer to Figures 1 to 5 , which shows a crack detection device for a ballastless railway track in an embodiment of the present invention, used for detecting cracks in the track, including a support mechanism 20, a traveling mechanism 30, a detection mechanism 40, a cleaning mechanism 50, and a blowing and cleaning structure 60.

[0037] The support mechanism 20 is arranged above the track 10. The traveling mechanism 30 is arranged at the four corners of the bottom of the support mechanism 20 and is used for the support mechanism 20 to travel along the track 10. The detection mechanism 40 is symmetrically arranged on both sides of the bottom of the support mechanism 20, and its detection end is oriented towards the track 10. The cleaning structure 50 is symmetrically and fixedly arranged at both ends of the bottom of the support mechanism 20 and includes a connecting plate 51, a first cleaning plate 52 and a second cleaning plate 53. The connecting plate 51 is fixedly arranged on the support mechanism 10. The first cleaning plate 52 and the second cleaning plate 53 are fixedly arranged at the bottom of the connecting plate 51. The first cleaning plate 51 is arranged above the track 10, and the second cleaning plate 52 is arranged on one side of the track 10. The air-blowing cleaning mechanism 60 is symmetrically arranged at both ends of the bottom of the support mechanism 10 and is located on one side of the cleaning mechanism 50. The output end of the air-blowing cleaning mechanism 60 is oriented towards the top of the track 10 and one side of the track 10. Wherein, the traveling mechanism 30 drives the support mechanism 20 to move on the track 10, so that the support mechanism 20 drives the first cleaning plate 52 and the second cleaning plate 53 through the connecting plate 51 to clean the track 10, and the track 10 is cleaned by the air-blowing cleaning mechanism 60, so that the detection mechanism 40 detects the track 10 after cleaning and cleaning.

[0038] It can be understood that the traveling mechanism 30 drives the support mechanism 20 to move on the track 10. During the movement of the support mechanism 20, the first cleaning plate 52 and the second cleaning plate 53 are driven through the connecting plate 51. In this embodiment, the first cleaning plate 51 and the second cleaning plate 52 are perpendicularly arranged. The first cleaning plate 51 cleans the upper surface of the track 10, and the second cleaning plate 52 cleans the side surface of the track 10 to complete the preliminary cleaning of the track 10. During this process, the air-blowing cleaning mechanism 60 is started. Since its output end is oriented towards the upper surface and the side surface of the track 10, the air blown out from the output end of the air-blowing cleaning mechanism 60 can further clean the track 10. Since some dust and the like will remain attached to the track 10 during the cleaning of the track 10 by the first cleaning plate 51 and the second cleaning plate 52, the strong wind blown out by the air-blowing cleaning mechanism 60 can further clean the track 10, so that the cracks on the surface of the track 10 will not be blocked by dust, and further the cracks on the surface of the track 10 are made more clearly visible. Furthermore, when the detection mechanism 40 detects the track 10, it is more clear and accurate, improving the detection accuracy.

[0039] It should be noted that when the track 10 is detected in windy weather, since strong winds will bring a large amount of sand and dust, the air-blowing cleaning mechanism 60 can blow away the sand and dust around the detection mechanism 40 and around the track at this time, avoiding being affected during the detection of the track 10 in windy weather, thereby effectively improving the applicability of the device.

[0040] Please refer to Figure 1 , in this embodiment, the support mechanism 20 includes a support plate 21, a cross beam 22 and two connecting seats 23. The cross beam 22 is fixed to the bottom of the support plate 21. The two connecting seats 23 are symmetrically fixed on the traveling mechanism 30 and are located below the support plate 21. An air inlet 230 is opened at the top of the connecting seat 23, as Figure 6 shown.

[0041] It should be explained that in this embodiment, the cross beam 22 is fixedly arranged at the middle position of the bottom of the support plate 21.

[0042] Please refer to Figure 2 , in this embodiment, the traveling mechanism 30 includes a drive shaft 33, traveling wheels 32 and a protective cover 31. The traveling wheels 32 are connected to the support mechanism 10 through the drive shaft 33. The protective cover 31 is fixed to the bottom of the support mechanism 20 and covers the traveling wheels 32. A through hole 310 through which the drive shaft 33 can pass is opened on the side wall of the protective cover 31.

[0043] It should be explained that in this embodiment, the two ends of the connecting seat 23 are respectively fixed to the side walls of the two protective covers 31. It should be noted that the protective cover 31 can protect the traveling wheels 32, avoiding the adhesion of sand and dust and garbage to the traveling wheels, and further avoiding the pollution of the surface of the track 10 by the adhered sand and dust and garbage.

[0044] Please refer to Figure 2 , in this embodiment, the detection mechanism 40 includes an ultrasonic probe 42 and a crack image acquisition camera 41. The ultrasonic probe 42 is fixed to both sides of the bottom of the support mechanism 20. The crack image acquisition camera 41 is arranged on both sides of the bottom of the support mechanism 20 and on one side of the ultrasonic probe 42.

[0045] It should be explained that by arranging the ultrasonic probe 42 and the crack image acquisition camera 41 on both sides of the bottom of the support mechanism 20, the detection mechanism 40 can simultaneously detect both sides of the track 10, improving the comprehensiveness of the detection.

[0046] Please refer to Figure 3 and Figure 4In this embodiment, a mounting plate 410 is provided below the support mechanism 10, and the crack image acquisition camera 41 is fixed on the mounting plate 410. The side wall of the mounting plate 410 is connected with a receiving plate 411, and a rotating shaft 414 is passed through the receiving plate 411. Both ends of the rotating shaft 414 are rotatably provided on the support mechanism 10. A telescopic plate 412 is slidably provided in the receiving plate 411, and one end of the telescopic plate 412 is connected to the driving mechanism 70 through a hinge 413.

[0047] It should be explained that when the driving mechanism 70 is started, the driving mechanism 70 drives the telescopic plate 412 to move up and down through the hinge 413. In the present embodiment, the rotational torque of the hinge 413 is relatively large. Therefore, when the telescopic plate 412 moves up and down, the telescopic plate 412 is lifted and lowered vertically. Since one end of the hinge 413 of the telescopic plate 412 is slidably arranged in the receiving plate 411, when the height of the telescopic plate 412 is higher or lower than the receiving plate 411, one end of the telescopic plate 412 is rotated through the hinge 413, and the other end is displaced in the receiving plate 411, and the receiving plate 411 is rotated through the rotating shaft 414. When the angle of the receiving plate 411 is rotated, the angle of the mounting plate 410 is changed, thereby changing the angle of the crack image acquisition camera 41, so that the crack image acquisition camera 41 can comprehensively shoot the track 10, thereby improving the comprehensiveness of the crack detection of the track 10.

[0048] See also Figure 3 In this embodiment, the driving mechanism 70 includes a cylinder 71, an adapter plate 72, two connecting rods 73 and a guide block 74. A support frame 80 is provided on the top of the support mechanism 10. The cylinder 71 is fixed on the support frame 80. The output end of the cylinder 71 passes through the support frame 80 and is connected to the adapter plate 72. The two ends of the bottom of the adapter plate 72 are respectively connected to the two connecting rods 73. The connecting rods 73 pass through the top of the support mechanism 10 and are connected to the guide block 74. The bottom side wall of the support mechanism 10 is provided with a guide groove 220 adapted to the guide block 74, so that the guide block 74 is rotatably connected to the telescopic plate 412 through the hinge 413.

[0049] It needs to be explained that the support frame 80 is provided with an upper surface of the support plate 21, the output end of the cylinder 71 passes through the support frame 80, the connecting rod 73 passes through the support plate 21 and the cross beam 22, and is located in the guide groove 220, so that the connecting rod 71 is connected to the guide block 74 in the guide groove 220, and then the guide block 74 can drive the telescopic plate 412 to move through the hinge 413.

[0050] It should be noted that a protective frame 210 is provided at the top of the support mechanism 20, and the protective frame 210 covers the support frame 80 so that the protective frame 210 can protect the support frame 80.

[0051] Please refer to Figure 5 , in this embodiment, the air blowing and cleaning mechanism 60 includes a blower 61, a flow splitter 62 and two output pipes 63. The blower 61 is arranged at both ends inside the bottom of the support mechanism 20. The output end of the blower 61 is connected to the two output pipes 63 through the flow splitter 62. Both output pipes 63 penetrate through the support mechanism 20. The output end of one output pipe 63 is arranged above the track 10, and the output end of the other output pipe 63 is arranged on one side of the track 10.

[0052] It should be explained that the blower 61 is arranged inside the connecting seat 23, and the two output pipes 63 respectively penetrate through the side wall and the bottom of the connecting seat 23, as Figure 7 shown. During specific implementation, the wind energy generated by the blower 61 is split by the flow splitter 62 and then discharged from the two output pipes 63. One output pipe 63 guides the wind energy to the upper surface of the track 10 to achieve the purpose of cleaning the upper surface of the track 10, and the other output pipe 63 guides the wind energy to the side of the track 10 to achieve the purpose of cleaning the side of the track 10.

[0053] Please refer to Figure 1 , in this embodiment, a mounting seat 211 is provided on one side of the top of the support mechanism 20, and a display screen 212 is mounted on the mounting seat 211.

[0054] It should be explained that the mounting seat 211 is arranged on the upper surface of the support plate 21. During specific implementation, when the ultrasonic wave emitted by the ultrasonic probe 42 propagates to the interface between the metal and the defect, the reflected ultrasonic wave is received by the ultrasonic probe 42 and is processed by the central processor inside the mounting seat 211, and the corresponding data information is displayed through the display screen 212. The display screen 212 will display waveforms with different heights and a certain spacing, and the depth, position and shape of the crack on the surface of the railway track can be judged according to the change characteristics of the waveforms, so that the staff can easily observe the situation of the track 10. And in this embodiment, the crack image acquisition camera 41 is electrically connected to the display screen 212, and the situation of the track 10 collected by the crack image acquisition camera 41 is also fed back to the display screen 212 so that the staff can quickly observe the surface situation of the track 10.

[0055] In summary, for the ballastless track crack detection device in the above embodiments of the present invention, the traveling mechanism 30 drives the support mechanism 20 to move, and the support mechanism 20 drives the cleaning mechanism 50 to move, so that the first cleaning plate 52 and the second cleaning plate 53 in the cleaning mechanism 50 clean the top and side surfaces of the track 10. Then, the impurity swept out by the first cleaning plate 52 and the second cleaning plate 52 on the track 10 is cleaned by the air-blowing cleaning mechanism 60, so that the surface of the track 10 reaches a state without dust and garbage, thereby enabling the detection mechanism 40 to more accurately detect the cracks in the track 10 and improving the accuracy during detection.

[0056] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above-described embodiments merely represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A crack detection device for ballastless railway tracks, used for detecting cracks in the tracks, characterized in that, Comprising: A support mechanism, disposed above the track; A traveling mechanism, disposed at the four corners of the bottom of the support mechanism, for the support mechanism to travel along the track; A detection mechanism, symmetrically disposed on both sides of the bottom of the support mechanism, with its detection end facing the track; A cleaning mechanism, symmetrically and fixedly disposed at both ends of the bottom of the support mechanism, including a connecting plate, a first cleaning plate and a second cleaning plate. The connecting plate is fixedly disposed on the support mechanism. The first cleaning plate and the second cleaning plate are fixedly disposed at the bottom of the connecting plate. The first cleaning plate is disposed above the track, and the second cleaning plate is disposed on one side of the track; A blowing and cleaning mechanism, symmetrically disposed at both ends of the bottom of the support mechanism and located on one side of the cleaning mechanism. The output end of the blowing and cleaning mechanism faces the top of the track and one side of the track; Wherein, the detection mechanism includes an ultrasonic probe and a crack image acquisition camera. The ultrasonic probe is fixedly disposed on both sides of the bottom of the support mechanism. The crack image acquisition camera is disposed on both sides of the bottom of the support mechanism and on one side of the ultrasonic probe. There is a mounting plate below the support mechanism. The crack image acquisition camera is fixedly disposed on the mounting plate. A receiving plate is connected to the side wall of the mounting plate. A rotating shaft is disposed through the receiving plate. Both ends of the rotating shaft are rotatably disposed on the support mechanism. A telescopic plate is slidably disposed in the receiving plate. One end of the telescopic plate is connected to a driving mechanism through a hinge. The driving mechanism includes a cylinder, a transfer plate, two connecting rods and a guiding block. There is a support frame on the top of the support mechanism. The cylinder is fixedly disposed on the support frame. The output end of the cylinder penetrates through the support frame and is connected to the transfer plate. The two ends of the bottom of the transfer plate are respectively connected to the two connecting rods. The connecting rods penetrate through the top of the support mechanism and are connected to the guiding block. A guiding groove adapted to the guiding block is provided on the side wall of the bottom of the support mechanism, so that the guiding block is rotatably connected to the telescopic plate through the hinge; Wherein, the traveling mechanism drives the support mechanism to move on the track, so that the support mechanism drives the first cleaning plate and the second cleaning plate to clean the track through the connecting plate, and the track is cleaned by the blowing and cleaning mechanism, so that the detection mechanism detects the cleaned track.

2. The crack detection device for ballastless track of railway according to claim 1, characterized in that The support mechanism includes a support plate, a cross beam and two connecting seats. The cross beam is fixedly disposed at the bottom of the support plate. The two connecting seats are symmetrically and fixedly disposed on the traveling mechanism and are located below the support plate. An air inlet is provided at the top of the connecting seat.

3. The crack detection device for railway ballastless track according to claim 1, characterized in that, The traveling mechanism includes a driving shaft, traveling wheels and a protective cover. The traveling wheels are connected to the support mechanism through the driving shaft. The protective cover is fixedly disposed at the bottom of the support mechanism and covers the traveling wheels.

4. The crack detection device for railway ballastless track according to claim 3, characterized in that, A through hole for the driving shaft to penetrate is provided on the side wall of the protective cover.

5. The crack detection device for ballastless track of railway according to claim 1, characterized in that, A protective frame body is provided on the top of the support mechanism, and the protective frame body covers the support frame.

6. The crack detection device for ballastless track of railway according to claim 1, characterized in that, The air-blowing cleaning mechanism includes a blower, a flow splitter, and two output pipes. The blower is arranged at both ends inside the bottom of the support mechanism. The output end of the blower is connected to the two output pipes through the flow splitter. Both output pipes penetrate the support mechanism. The output end of one output pipe is arranged above the track, and the output end of the other output pipe is arranged on one side of the track.

7. The crack detection device for railway ballastless track according to claim 1, characterized in that, A mounting seat is arranged on one side of the top of the support mechanism, and a display screen is mounted on the mounting seat.

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