Rail bottom rapid detection device and flaw detection car

Abstract

The utility model discloses a rail bottom rapid detection device, which comprises a sliding plate and rotating assemblies, the rotating assemblies are symmetrically connected with two sides of the sliding plate, each rotating assembly comprises a rotary motor, a rotating rod and a wheel detection assembly, the rotary motor is fixedly connected with the sliding plate, a driving end of the rotary motor is connected with one end of the rotating rod, and a driving end of the rotating rod is connected with the wheel detection assembly. And the other end of the rotating rod is connected with the detection wheel assembly. The utility model further discloses a flaw detection car using the rail bottom rapid detection device. The rail bottom rapid detection device has the beneficial effects that the rail bottom rapid detection device carries out rail bottom flaw detection operation along with the double-rail flaw detection trolley, the efficiency is improved, repeated pushing and specific position confirmation are not needed, the four rail bottom feet of the steel rail are subjected to flaw detection at the same time, the flaw rate is high, and when flaw detection is not needed, the detection wheel assemblies can be rotated to the positions above the two sides of the steel rail, so that the detection efficiency is improved. And the abrasion of the detection wheel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of track detection, in particular to a rail bottom rapid detection device. Background Art

[0002] Rails are important components of railway tracks. With the increase in train speed and the operation of heavy-load trains, the damage to the tracks has been increasing, thus affecting driving safety. At present, the inspection of railway rails adopts the rail flaw detection vehicle technology based on longitudinal wave and transverse wave methods. This technology can only inspect the rail head and rail waist and their extended parts. Since the cross-section of the rail is in the shape of an "I", the areas on both sides of the rail bottom cannot be inspected. The cross-sectional shape and structure of the rail bottom are irregular, and the force is uneven. Once there is a defect, it is easy to cause the rail bottom to break, threatening driving safety.

[0003] In recent years, ultrasonic guided wave detection technology has been widely used in long-distance detection of pipelines and plates. Compared with conventional ultrasonic detection methods, the new ultrasonic guided wave technology has the advantages of low attenuation along the propagation path, long propagation distance, and fast detection speed. The current rail bottom weld is detected by single / dual / multiple probes, which are tested manually, using a scanning frame to move and adjust the probe angle for detection. If an abnormality is found, it is repeatedly moved and touched by hand to determine the specific location. This is inefficient and requires too much manpower and time investment.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to ordinary technicians in this field. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to solve the problem that the current manual flaw detection on the rail bottom is low in efficiency and there is no mechanized ultrasonic flaw detection of the base rail foot.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] A rail bottom rapid detection device comprises a sliding plate and a rotating assembly, wherein the rotating assembly is symmetrically connected to both sides of the sliding plate, the rotating assembly comprises a rotary motor, a rotating rod, and a detection wheel assembly, the rotary motor is fixedly connected to the sliding plate, the driving end of the rotary motor is connected to one end of the rotating rod, and the other end of the rotating rod is connected to the detection wheel assembly.

[0008] When the utility model is used, it can be integrated into a flaw detection vehicle or other flaw detection devices. The rail bottom rapid detection device performs rail bottom flaw detection operations together with the rail flaw detection vehicle. The flaw detection speed can reach 8 to 10 km / h, which greatly improves the efficiency. At the same time, it does not need to be repeatedly pushed to confirm the specific position. The multi-probe design can simultaneously detect the four rail bottom feet of the rail, and the flaw detection rate is high. When flaw detection is not required or there are sections that cannot be passed due to plywood, wire holes, etc., the rotary motor can be used to operate the rotating rod to rotate the detection wheel assembly to the top of both sides of the rail, and the flaw detection vehicle can quickly move to the position where flaw detection is required, and then the detection wheel assembly can be put down, which will not affect the operation of the flaw detection vehicle when not flaw detection is performed, and reduce the wear of the detection wheel, which is convenient to use.

[0009] Preferably, it also includes a sliding component, which includes a sliding plate, a first connecting plate, a second connecting plate, a sliding shaft, and a spring. The first connecting plate and the second connecting plate are respectively located on both sides of the sliding plate, one end of the sliding shaft is fixedly connected to the first connecting plate, and the other end is fixedly connected to the second connecting plate. The sliding shaft is slidably connected to the sliding plate, and the spring is sleeved on the sliding shaft, and both ends of the spring are respectively connected to the first connecting plate and the sliding plate.

[0010] The spring ensures that the entire device always fits on the rail during the movement of the flaw detection trolley and automatically resets when it deviates.

[0011] Preferably, the sliding assembly also includes a positioning block and a fixed cross bar, one end of the positioning block is fixedly connected to the sliding plate, the fixed cross bar is fixedly connected to the other end of the positioning block, the fixed cross bar is slidably connected to the sliding shaft in a manner parallel to the first connecting plate, and the positioning block is slidably connected to the sliding shaft.

[0012] The positioning block can ensure that the sliding plate moves horizontally along the axial direction. During use, the spring needs to always remain in a compressed state. The positioning block occupies a certain space to ensure that the spring is always compressed.

[0013] Preferably, there are two sliding shafts, which are arranged in parallel, and the two sliding shafts, the first connecting plate and the second connecting plate form a quadrilateral frame structure.

[0014] Preferably, it also includes an upper hanging plate assembly, and the upper hanging plate assembly is detachably connected to the sliding plate.

[0015] Preferably, the upper hanging plate assembly comprises an upper hanging plate and a pull rod assembly, the bottom of the pull rod assembly is connected to the sliding plate, and the middle or upper part of the pull rod assembly is detachably connected to the upper hanging plate.

[0016] Preferably, the upper hanging plate assembly further includes a plurality of studs, the bottom ends of the studs are connected to the first connecting plate and / or the second connecting plate, and the top ends of the studs are connected to the upper hanging plate.

[0017] Preferably, the pull rod assembly includes a first fixed plate, a pull rod, a second fixed plate, and a limiting hook. The first fixed plate is connected to the top of the sliding plate, the bottom of the pull rod is connected to the first fixed plate, the second fixed plate is connected to the upper hanging plate, and the middle part of the pull rod is connected to the limiting hook. The limiting hook can clamp or detach from the second fixed plate.

[0018] The pull rod assembly can realize the rapid installation and disassembly of the sliding plate and the rotating assembly with the upper hanging plate, and is easy to use.

[0019] Preferably, the rotating assembly further comprises a roller bracket and a roller, wherein the roller bracket is connected to the middle portion of the rotating rod, and the roller is rotatably connected to the roller bracket, and the central axis of the roller is perpendicular to the central axis of the detection wheel assembly.

[0020] The flaw detection vehicle comprises a vehicle body and a rail bottom rapid detection device. The rail bottom rapid detection device also comprises an upper hanging plate assembly. The bottom of the upper hanging plate assembly is connected to the sliding plate, and the end of the upper hanging plate assembly is connected to the vehicle body.

[0021] The rail bottom rapid detection device borrows the installation position of the original double-track flaw detection trolley. The same flaw detection trolley can be used to detect flaws on the rail head tread, both sides of the rail head, rail waist and projection part, as well as on both sides of the rail bottom. It is a beneficial supplement to rail flaw detection, improves the comprehensive damage identification of the entire rail, and improves detection efficiency and recognition rate.

[0022] The advantages of the utility model are:

[0023] (1) When the utility model is used, it can be integrated into a flaw detection vehicle or other flaw detection devices. The rail bottom rapid detection device can perform rail bottom foot flaw detection operations together with the rail flaw detection vehicle. The flaw detection speed can reach 8 to 10 km / h, which greatly improves the efficiency. At the same time, there is no need to push repeatedly to confirm the specific position. The multi-probe design can simultaneously detect the four rail bottom feet of the rail, and the flaw detection rate is high. When flaw detection is not required or there are sections that cannot be passed due to plywood, wire holes, etc., the rotary motor can be used to operate the rotating rod to rotate the detection wheel assembly to the top of both sides of the rail, and the flaw detection vehicle can quickly move to the position where flaw detection is required, and then the detection wheel assembly can be lowered. It will not affect the operation of the flaw detection vehicle when not detecting flaws, and it can reduce the wear of the detection wheel, making it easy to use;

[0024] (2) The rail bottom rapid detection device borrows the installation position of the original double-track flaw detection trolley. The same flaw detection trolley can detect flaws on the rail head tread, both sides of the rail head, rail waist and projection part, and can also detect flaws on both sides of the rail bottom. It is a useful supplement to rail flaw detection, improves the comprehensive damage identification of the entire rail, and improves the detection efficiency and recognition rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a rail bottom rapid detection device according to an embodiment of the utility model;

[0026] Figure 2 It is a side view of the rail bottom rapid detection device of the embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of a sliding assembly and a rotating assembly in an embodiment of the utility model;

[0028] Figure 4 This is a structural schematic diagram of the upper hanging plate assembly of the utility model embodiment;

[0029] Figure 5 This is a schematic diagram of the probe wheel assembly of the embodiment of the utility model when not in use;

[0030] Figure 6 This is a schematic structural diagram of a flaw detection vehicle according to an embodiment of the utility model;

[0031] Figure 7 This is a schematic structural diagram of a flaw detection vehicle according to an embodiment of the utility model;

[0032] Numbers in the figure:

[0033] 1. Sliding assembly; 11. Sliding plate; 12. First connecting plate; 13. Second connecting plate; 14. Sliding shaft; 15. Spring; 16. Positioning block; 17. Fixed cross bar;

[0034] 2. Rotating assembly; 21. Rotating motor; 22. Rotating rod; 23. Detecting wheel assembly; 24. Roller bracket; 25. Roller; 26. Limit switch;

[0035] 3. Upper hanging plate assembly; 31. Upper hanging plate; 32. Pull rod assembly; 321. First fixing plate; 322. Pull rod; 323. Second fixing plate; 324. Limiting hook; 33. Stud;

[0036] 4. Flaw detection vehicle; 41. Vehicle body;

[0037] 5. Rails. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 6 As shown, the rail bottom rapid detection device includes a sliding assembly 1, a rotating assembly 2, and an upper hanging plate assembly 3. The sliding assembly 1 includes a sliding plate 11, the rotating assembly 2 connects the two sides of the sliding plate 11 in a symmetrical manner, and the upper hanging plate assembly 3 connects the top of the sliding plate 11. One side of the upper hanging plate assembly 3 is connected to the body 41 of the flaw detection vehicle 4.

[0041] Specifically, Figure 2 As shown, the rotating assembly 2 includes a rotary motor 21, a rotating rod 22, and a wheel-detecting assembly 23. The rotary motor 21 is connected to the side of the sliding plate 11 through a motor seat bolt. The sliding plate 11 is a plate and is arranged vertically. The driving end of the rotary motor 21 is connected to the top of the rotating rod 22. The rotating rod 22 is arranged vertically, and the bottom end of the rotating rod 22 is connected to the wheel-detecting assembly 23. The central axis direction of the wheel-detecting assembly 23 is perpendicular to the track. The two wheel-detecting assemblies 23 are arranged symmetrically, and the wheel-detecting assembly 23 can be used in the prior art.

[0042] The rotating assembly 2 also includes a roller bracket 24 and a roller 25. The roller bracket 24 is connected to the middle part of the rotating rod 22. The roller 25 is rotatably connected to the roller bracket 24. The central axis of the roller 25 is perpendicular to the central axis of the detection wheel assembly 23. When the detection wheel assembly 23 is working, the roller 25 can roll on the side of the rail 5 to keep the detection point of the detection wheel assembly 23 moving along the direction of the rail 5. The two rollers 25 are the limit devices of the detection wheel, and roll against the side of the rail head.

[0043] A limit switch 26 is also installed on the motor seat of the rotary motor 21 , which can be used to control the rotation limit of the detection wheel assembly 23 .

[0044] like Figure 1-Figure 3As shown, the sliding assembly 1 includes a sliding plate 11, a first connecting plate 12, a second connecting plate 13, a sliding shaft 14, a spring 15, a positioning block 16, and a fixed cross bar 17. The first connecting plate 12 and the second connecting plate 13 are respectively located on both sides of the sliding plate 11, and the first connecting plate 12 and the second connecting plate 13 have the same structure. One end of the sliding shaft 14 is fixedly connected to the first connecting plate 12, and the other end is fixedly connected to the second connecting plate 13, wherein there are two sliding shafts 14, the two sliding shafts 14 are arranged in parallel, and the two sliding shafts 14 form a quadrilateral frame structure with the first connecting plate 12 and the second connecting plate 13. One end of the positioning block 16 is fixedly connected to the sliding plate 11, and the fixed cross bar 17 is fixedly connected to the other end of the positioning block 16. The fixed cross bar 17 is slidably connected to the sliding shaft 14 in a manner parallel to the first connecting plate 12. The sliding shaft 14 is slidably connected to the sliding plate 11 , and the two springs 15 are respectively sleeved on the two sliding shafts 14 , and two ends of the spring 15 are respectively abutted against the first connecting plate 12 and the sliding plate 11 .

[0045] That is, the sliding plate 11 is fixedly connected to the fixed cross bar 17 through the positioning block 16, and the structure can slide along the sliding shaft 14. After installation, the spring 15 is always in a compressed state. The positioning block 16 can ensure that the sliding plate 11 moves horizontally along the axial direction. During use, the spring 15 needs to always remain in a compressed state. The positioning block 16 occupies a certain space to ensure that the spring 15 is always compressed. The sliding plate 11 can drive the entire rotating assembly 2 to slide left and right on the sliding shaft 14. The spring 15 plays a role in ensuring that the entire device can always fit on the rail 5 during the movement of the flaw detection trolley and automatically reset when it is offset. There are multiple rollers 25 to ensure the position of the rotating assembly 2 relative to the rail 5. With the use of the spring 15, the position of the detection wheel relative to the rail 5 during the movement of the flaw detection trolley can be ensured.

[0046] In this embodiment, the sliding plate 11 defines a hole for the sliding shaft 14 to pass through, but the inner diameter of the hole is larger than the outer diameter of the spring 15. In this case, the spring 15 cannot abut against the sliding plate 1. Therefore, a baffle is added to one side of the sliding plate 11. The baffle defines a hole for the sliding shaft 14 to pass through. The inner diameter of the hole is slightly larger than the outer diameter of the sliding shaft 14 and smaller than the inner diameter of the spring 15. The baffle is fixed to one side of the sliding plate 11 by bolts or the like. The sliding shaft 14 passes through the baffle, and one end of the spring 15 abuts against the baffle.

[0047] When this embodiment is used, the upper hanging plate assembly 3 is integrated on the flaw detection vehicle 4 or other flaw detection devices, and the rail bottom rapid detection device performs rail bottom flaw detection operations together with the flaw detection vehicle. The flaw detection speed can reach 8-10km / h, which greatly improves the efficiency. At the same time, there is no need to push repeatedly to confirm the specific position. The multi-probe design can detect the four rail bottom feet of the rail at the same time, and the flaw detection rate is high. Figure 5 As shown, when flaw detection is not required or there are obstacles, the rotary motor 21 can be used to operate the rotating rod 22 to rotate the detection wheel assembly 23 to the top of both sides of the rail, and the flaw detection vehicle 4 can be quickly moved to the position where flaw detection is required, and then the detection wheel assembly 23 can be lowered, which will not affect the operation of the flaw detection vehicle 4 when flaw detection is not performed, and reduce the wear of the detection wheel, making it easy to use.

[0048] Embodiment 2:

[0049] like Figure 3 , Figure 4 As shown, the upper hanging plate assembly 3 and the sliding plate 11 are detachably connected.

[0050] Specifically, the upper hanging plate assembly 3 includes an upper hanging plate 31, a tie rod assembly 32, and a plurality of studs 33. The bottom of the tie rod assembly 32 is connected to the sliding plate 11, and the middle or upper part of the tie rod assembly 32 is detachably connected to the upper hanging plate 31. The bottom end of the stud 33 is connected to the first connecting plate 12 and the second connecting plate 13, and the top end of the stud 33 is connected to the upper hanging plate 31. The first connecting plate 12 and the second connecting plate 13 have vertical plates at both ends and a horizontal plate in the middle, which is convenient for the sliding shaft 14 to be connected to both ends and the stud 33 to be connected to the middle of the two.

[0051] The four studs 33 can adjust the height of the sliding assembly 1 and the rotating assembly 2 connected thereto, as well as the front-back and left-right angles, to ensure the angle of the wheel detection. The angle adjustment is achieved by using the four studs 33 to screw at different depths, such as Figure 2 As shown, the height of the two studs 33 on the right side between the first connecting plate 12 and the upper hanging plate 31 is less than the height between the second connecting plate 13 and the upper hanging plate 31, then the sliding component 1 and the rotating component 2 are inclined toward the lower right corner, otherwise, they are inclined toward the lower left corner.

[0052] The pull rod assembly 32 includes a first fixed plate 321, a pull rod 322, a second fixed plate 323, and a limiting hook 324. The first fixed plate 321 is connected to the top of the sliding plate 11 by bolts, the bottom of the pull rod 322 is connected to the first fixed plate 321, the second fixed plate 323 is connected to the upper hanging plate 31, and the middle part of the pull rod 322 is connected to the limiting hook 324. The limiting hook 324 can clamp or detach from the second fixed plate 323.

[0053] The middle portion of the upper hanging plate 31 is hollow, and the pull rod 322 vertically passes through the hollow middle portion of the upper hanging plate 31 .

[0054] The second fixing plate 323 is provided with a vertical plate that can be engaged with the limiting hook 324 . There can be two limiting hooks 324 . One end of the limiting hook 324 is hinged on the pull rod 322 , and the other end is provided with a groove that can be hooked on the vertical plate of the second fixing plate 323 .

[0055] The pull rod assembly 32 can realize the rapid installation and disassembly of the sliding plate 11 and the rotating assembly 2 and the upper hanging plate 31, and is easy to use.

[0056] Embodiment three:

[0057] like Figure 6 , Figure 7 As shown, the flaw detection vehicle 4 includes a vehicle body 41 and the rail bottom rapid detection device in the above-mentioned embodiment one or two, and the rail bottom rapid detection device also includes an upper hanging plate assembly 3, the bottom of the upper hanging plate assembly 3 is connected to the sliding plate 11, and the end of the upper hanging plate assembly 3 is connected to the vehicle body 41.

[0058] In this embodiment, the flaw detection vehicle 4 itself can perform flaw detection work on the rail head, rail waist and projection part. Connecting brackets are set on both sides of the flaw detection vehicle 4, and the rail bottom rapid detection device can be connected to the connecting bracket through the upper hanging plate 31 in the upper hanging plate assembly 3.

[0059] The rail bottom rapid detection device borrows the installation position of the original double-track flaw detection trolley. The same flaw detection trolley 4 can detect the damage of the rail head, rail waist and projection part, and can also detect flaws on both sides of the rail bottom. It is a useful supplement to rail flaw detection, improves the comprehensive damage identification of the entire rail 5, and improves the detection efficiency and recognition rate.

[0060] The technical solution of this embodiment is easier to detect, saving a lot of manpower and skylight points; it can be used at any time, and can borrow the existing double-track flaw detection trolley, which is extremely convenient for use due to the time and location restrictions of the double-track flaw detection trolley 4 with skylight points; it can simultaneously detect the damage of the four rail feet of the rail 5, improving the detection efficiency and recognition rate. The detection device is modular and easy to carry and transport; it reduces human intervention, is more stable and objective, and reduces the repeated workload and misjudgment caused by differences in the technical capabilities of flaw detection personnel.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Rail bottom rapid detection device, characterized in that: It includes a sliding plate and a rotating component, wherein the rotating component is symmetrically connected to both sides of the sliding plate, and the rotating component includes a rotary motor, a rotating rod, and a detection wheel component. The rotary motor is fixedly connected to the sliding plate, the driving end of the rotary motor is connected to one end of the rotating rod, and the other end of the rotating rod is connected to the detection wheel component.

2. The rail bottom rapid detection device according to claim 1, characterized in that: It also includes a sliding component, which includes a sliding plate, a first connecting plate, a second connecting plate, a sliding shaft, and a spring. The first connecting plate and the second connecting plate are respectively located on both sides of the sliding plate, one end of the sliding shaft is fixedly connected to the first connecting plate, and the other end is fixedly connected to the second connecting plate. The sliding shaft is slidably connected to the sliding plate, and the spring is sleeved on the sliding shaft, and both ends of the spring are respectively connected to the first connecting plate and the sliding plate.

3. The rail bottom rapid detection device according to claim 2, characterized in that: The sliding assembly also includes a positioning block and a fixed cross bar, one end of the positioning block is fixedly connected to the sliding plate, the fixed cross bar is fixedly connected to the other end of the positioning block, the fixed cross bar is slidably connected to the sliding shaft in a manner parallel to the first connecting plate, and the positioning block is slidably connected to the sliding shaft.

4. The rail bottom rapid detection device according to claim 2, characterized in that: There are two sliding shafts, which are arranged in parallel. The two sliding shafts, the first connecting plate and the second connecting plate form a quadrilateral frame structure.

5. The rail bottom rapid detection device according to claim 2, characterized in that: It also includes an upper hanging plate assembly, and the upper hanging plate assembly is detachably connected to the sliding plate.

6. The rail bottom rapid detection device according to claim 5, characterized in that: The upper hanging plate assembly comprises an upper hanging plate and a pull rod assembly. The bottom of the pull rod assembly is connected to the sliding plate, and the middle or upper part of the pull rod assembly is detachably connected to the upper hanging plate.

7. The rail bottom rapid detection device according to claim 6, characterized in that: The upper hanging plate assembly further comprises a plurality of studs, the bottom ends of the studs are connected to the first connecting plate and / or the second connecting plate, and the top ends of the studs are connected to the upper hanging plate.

8. The rail bottom rapid detection device according to claim 6, characterized in that: The pull rod assembly includes a first fixed plate, a pull rod, a second fixed plate, and a limiting hook. The first fixed plate is connected to the top of the sliding plate, the bottom of the pull rod is connected to the first fixed plate, the second fixed plate is connected to the upper hanging plate, and the middle of the pull rod is connected to the limiting hook. The limiting hook can clamp or detach from the second fixed plate.

9. The rail bottom rapid detection device according to claim 1, characterized in that: The rotating assembly also includes a roller bracket and a roller. The roller bracket is connected to the middle part of the rotating rod. The roller is rotatably connected to the roller bracket. The central axis of the roller is perpendicular to the central axis of the detection wheel assembly.

10. The flaw detection vehicle is characterized by: It comprises a vehicle body and a rail bottom rapid detection device according to any one of claims 1 to 9, wherein the rail bottom rapid detection device further comprises an upper hanging plate assembly, the bottom of the upper hanging plate assembly is connected to the sliding plate, and the end of the upper hanging plate assembly is connected to the vehicle body.

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