Railway track detection vehicle

Abstract

The invention relates to the technical field of track detection, and discloses a railway track detection vehicle which comprises an I-shaped base, a walking mechanism and a detection mechanism. The walking mechanism comprises guide columns arranged on the two sides of the I-shaped base, the two sides of the guide columns are slidably connected with sliding seats, the sides, away from the I-shaped base, of the sliding seats are rotationally connected with one end of a first supporting plate, the other end of the first supporting plate is rotationally connected with one side of a first mounting frame, and the other side of the first mounting frame is rotationally connected with one end of a second supporting plate; the other end of the second supporting plate is rotationally connected with the end of the I-shaped base, and a rail supporting wheel is rotationally connected to the first mounting frame. The four rail supporting wheels capable of automatically rotating and measuring the speed are arranged, so that the detection vehicle can directly fall on a rail and detect two rails at the same time, and due to the movement of the rail supporting wheels, the speed of the four walking wheels can be independently adjusted, so that the movement and steering of the detection vehicle on the ground are realized.

Description

Technical Field

[0001] The invention relates to the technical field of track detection, in particular to a railway track detection vehicle. Background Art

[0002] Railway tracks are exposed to nature all year round, and are subjected to wind, rain, freeze and thaw, as well as train loads. The track geometry is constantly changing, the roadbed and ballast are constantly deforming, and the rails, connecting parts and sleepers are constantly wearing out. Therefore, the rails need to be inspected and processed during train outages.

[0003] The existing track inspection vehicle is only provided with a single row of running wheels, which means that an operator needs to hold the inspection vehicle to inspect a single track, but cannot detect the relevant parameters between the two tracks, so it needs to be improved. Summary of the invention

[0004] The present invention provides a railway track inspection vehicle, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A railway track inspection vehicle comprises an I-shaped base, a traveling mechanism and a detection mechanism; the detection mechanism comprises a fixed block arranged in the middle of the I-shaped base, a telescopic sleeve is arranged on the side of the fixed block, the telescopic sleeve is slidably connected to a telescopic rod, an extension plate is arranged at the end of the telescopic rod, and a flaw detection head is arranged on the side of the extension plate close to the ground; the traveling mechanism comprises guide columns arranged on both sides of the I-shaped base, sliding seats are slidably connected on both sides of the guide columns, a side of the sliding seat away from the I-shaped base is rotationally connected to one end of a first support plate, the other end of the first support plate is rotationally connected to one side of a first mounting frame, the other side of the first mounting frame is rotationally connected to one end of a second support plate, the other end of the second support plate is rotationally connected to the end of the I-shaped base, and the first mounting frame is rotationally connected to a rail support wheel.

[0007] As a preferred technical solution of the present invention, the cross section of the rail support wheel is trapezoidal, and the first mounting frame is provided with a driver for driving the rail support wheel to rotate and detecting the angular velocity of the rail support wheel. A slider slidably connected to the guide column is provided between the sliding seat and the I-shaped base, and a bearing seat is provided on the slider, and the bearing seat is rotatably connected to a running wheel coaxially arranged with the rail support wheel, and the diameter of the running wheel is larger than the diameter of the rail support wheel.

[0008] As a preferred technical solution of the present invention, the end of the traveling wheel is fixedly connected to a limiting sleeve, and the end of the rail supporting wheel is fixedly connected to a limiting rod that cooperates with the limiting sleeve.

[0009] As a preferred technical solution of the present invention, cross beams are arranged on both sides of the I-beam base, the ends of the cross beams are fixedly connected to the sliding seats, and a roller cooperating with the I-beam base is arranged on the side of the cross beam close to the I-beam base. A bracket is arranged on the I-beam base, and the bracket is rotatably connected to a spacing adjustment screw rod, and the spacing adjustment screw rod is threadedly connected to a nut block fixedly connected to the cross beam.

[0010] As a preferred technical solution of the present invention, a cross bar is provided on the side of the extension plate, and the cross bar is slidably connected to a sliding block fixedly connected to the first mounting frame. Guide rods are slidably connected to both sides of the extension plate, and the end of the guide rod away from the ground is fixedly connected to the first mounting plate, and the middle of the first mounting plate is threadedly connected to a jacking screw matched with the extension plate, and the end of the guide rod close to the ground is fixedly connected to the second mounting plate, and the middle of the second mounting plate is fixedly connected to the flaw detection head, and second mounting frames are provided on both sides of the second mounting plate, and the second mounting frames are rotatably connected to auxiliary support wheels.

[0011] The present invention has the following benefits:

[0012] By setting up four rail support wheels that can rotate autonomously and measure speed, the inspection vehicle can land directly on the track and inspect two rails at the same time. Due to the movement of the rail support wheels, the speed of the four running wheels can be adjusted individually, thereby realizing the movement and steering of the inspection vehicle on the ground, making the transfer of the inspection vehicle more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The figure is a structural schematic diagram of a railway track inspection vehicle.

[0015] Figure 2 The figure is a front view of a railway track inspection vehicle.

[0016] Figure 3 The present invention is a structural schematic diagram of a detection mechanism in a railway track detection vehicle.

[0017] Figure 4 The figure is a schematic diagram of the structure of a flaw detection head in a railway track inspection vehicle.

[0018] Figure 5 The present invention is a schematic diagram of the structure below the I-shaped base in a railway track inspection vehicle.

[0019] Figure 6 The present invention is a structural schematic diagram of a spacing adjustment screw rod in a railway track inspection vehicle.

[0020] Figure 7 The present invention is a schematic diagram of the structure of a traveling mechanism in a railway track inspection vehicle.

[0021] Figure 8 for Figure 7 Right view of .

[0022] In the figure: 1. I-shaped base; 2. walking mechanism; 3. detection mechanism; 4. fixing block; 5. telescopic sleeve; 6. extension plate; 7. flaw detection head; 8. cross bar; 9. sliding block; 10. telescopic rod; 11. second mounting frame; 12. auxiliary support wheel; 13. first mounting plate; 14. second mounting plate; 15. guide rod; 16. jacking screw rod; 17. sliding seat; 18. guide column; 19. first support plate; 20. second support plate; 21. first mounting frame; 22. rail support wheel; 23. driver; 24. cross beam; 25. roller; 26. nut block; 27. spacing adjustment screw rod; 28. bracket; 29. ​​slider; 30. limit sleeve; 31. bearing seat; 32. walking wheel; 33. limit rod; 34. workbench. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In one embodiment, see Figure 1-Figure 8 A railway track inspection vehicle comprises an I-shaped base 1, and grooves are provided on the front and rear sides of the I-shaped base 1 to facilitate the installation of a traveling mechanism 2, so that the entire inspection vehicle can be shrunk into a smaller volume when moving, and also comprises a traveling mechanism 2 and an inspection mechanism 3;

[0025] The detection mechanism 3 includes a fixed block 4 arranged in the middle of the upper surface of the I-shaped base 1, and a telescopic sleeve 5 arranged in a front-to-back direction is arranged on both the left and right sides of the fixed block 4, and a telescopic rod 10 arranged in a front-to-back direction is slidably connected to both the front and rear sides of the telescopic sleeve 5, and the ends of the telescopic rod 10 are fixedly connected to the left and right ends of the extension plate 6 arranged in a left-to-right direction, and a flaw detection head 7 is arranged below the extension plate 6, and the rail is inspected and processed by the flaw detection head 7. The flaw detection head 7 belongs to a conventional detection method, and the detection process will not be described in detail;

[0026] The walking mechanism 2 includes guide columns 18 arranged on the front and rear sides of the I-shaped base 1. The guide columns 18 are arranged at the positions of the two front and rear give-way grooves of the I-shaped base 1 in a left-right direction. A sliding seat 17 is slidably connected to the left and right sides of the guide column 18. The side of the sliding seat 17 away from the I-shaped base 1 is rotatably connected to one end of the first support plate 19, and the other end of the first support plate 19 is rotatably connected to one side of the first mounting frame 21. The other side of the first mounting frame 21 is rotatably connected to one end of the second support plate 20, and the other end of the second support plate 20 is rotatably connected to the end of the I-shaped base 1. Therefore, when the sliding seat 17 is oriented away from the I-shaped base 1 When the guide column 18 moves in the center direction, the first support plate 19 and the second support plate 20 will push the first mounting bracket 28 outward, thereby extending the first mounting bracket 28. Conversely, when the sliding seat 17 moves toward the center direction of the guide column 18, the first support plate 19 and the second support plate 20 will pull the first mounting bracket 28 inward, thereby retracting the first mounting bracket 28 to the outside of the I-beam base 1. The first mounting frame 21 is rotatably connected to the front-rear rail support wheel 22. The rail support wheel 22 rolls on the track, so that the entire inspection vehicle can move along the track.

[0027] In one case of the present embodiment, the cross-section of the rail support wheel 22 is trapezoidal, that is, the diameter of the rail support wheel 22 gradually increases in the direction toward the I-shaped base 1, which is similar to conventional train wheels, so that the entire inspection vehicle is located in the center position between the two rails, and a driver 23 is arranged on the outside of the first mounting frame 21. The driver 23 includes a driving motor and a speed encoder. The driving motor drives the rail support wheel 22 to rotate. At the same time, the speed encoder detects the angular velocity change of the rail support wheel 22 in real time, so as to judge the curvature of the rail itself and the curvature change of the rail at the left and right positions through the speed difference of the four rail support wheels 22. These detection methods are similar to the existing four-wheel detection of automobiles. When the angular velocity of the front and rear wheels changes, it means that the rotation distance of the front and rear wheels has changed. At this time, the curvature of the track will change, but when the speed of the left and right wheels changes, the undulating curvature of the tracks on the left and right sides will change.

[0028] In one case of the present embodiment, a slider 29 slidably connected to the guide column 18 is provided between the sliding seat 17 and the I-shaped base 1, and a bearing seat 31 is provided on the slider 29. The bearing seat 31 is rotatably connected to a running wheel 32 coaxially arranged with the rail support wheel 22, and the diameter of the running wheel 32 is larger than the diameter of the rail support wheel 22. Since the track is higher than the ground, when the rail support wheel 22 is placed on the track, the running wheel 32 will not contact the sleepers between the tracks, and the entire inspection vehicle can move freely on the track. However, when the inspection vehicle is placed on the ground, since the diameter of the running wheel 32 is larger than the diameter of the rail support wheel 22, only the running wheel 32 can contact the ground, and the rail support wheel 22 will not contact the ground at this time, so that when the entire inspection vehicle is transferred, the rail support wheel 22 does not need to rub against the ground, thereby better protecting the rail support wheel 22, and also making the rail support wheel 22 more accurate, and not shaking when walking on the track, thereby improving the service life of the rail support wheel 22. The end of the running wheel 32 is fixedly connected to the limiting sleeve 30, and the end of the rail support wheel 22 is fixedly connected to the limiting rod 33 that cooperates with the limiting sleeve 30. A polygonal slot is provided inside the limiting sleeve 30, and the cross section of the limiting rod 33 is a polygon. Therefore, when the limiting rod 33 is inserted into the slot of the limiting sleeve 30, the rail support wheel 22 and the running wheel 32 will rotate synchronously, and at this time, the speed of the running wheel 32 can be controlled by the driver 23 to realize the processing of movement and steering.

[0029] In one case of the present embodiment, a crossbeam 24 is provided on the left and right sides of the I-shaped base 1, and the crossbeam 24 is a U-shaped structure arranged in a front-to-back direction. The front and rear ends of the crossbeam 24 are fixedly connected to the side of the sliding seat 17 close to the I-shaped base 1, and a roller 25 is provided in the middle of the lower surface of the crossbeam 24. The roller 25 can roll left and right on the upper surface of the I-shaped base 1, and a bracket 28 is provided above the I-shaped base 1. The bracket 28 is arranged in a left-right direction, and the bracket 28 is a U-shaped structure with an opening downward, and the left and right ends of the bracket 28 are fixedly connected to the left and right ends of the upper surface of the I-shaped base 1, and the left and right ends of the bracket 28 are rotatably connected to the spacing adjustment screw rods 27 arranged in a left-to-right direction. The left and right sides of the spacing adjustment screw rod 27 are threadedly connected with nut blocks 26, and the left and right nut blocks 26 are fixedly connected to the left and right cross beams 24 respectively, and threads with opposite rotation directions are arranged on the left and right sides of the spacing adjustment screw rod 27. Therefore, when the spacing adjustment screw rod 27 is rotated, the two nut blocks 26 will move closer to or away from each other, so that the sliding seats 17 on the left and right sides move closer to or away from each other, thereby realizing the position adjustment of the rail support wheel 22, and a workbench 34 is arranged above the bracket 28, and the operator can sit on the workbench 34 and observe the various parameters of the detection vehicle through the display screen on the workbench 34, so as to judge the status of the track in real time.

[0030] In one case of the present embodiment, a cross bar 8 is provided on the side of the extending plate 6, and the cross bar 8 is arranged in a left-right direction. The cross bar 8 is slidably connected to a sliding block 9 fixedly connected to the first mounting frame 21. Therefore, when the first mounting frame 21 moves forward and backward, the extending plate 6 also moves forward and backward adaptively, so that when the rail support wheel 22 falls on the track, the flaw detection head 7 is just located above the track, so as to perform flaw detection processing. The left and right ends of the extending plate 6 are slidably connected to vertically arranged guide rods 15, and the upper ends of the guide rods 15 are fixedly connected to the left and right ends of the first mounting plate 13 arranged in a left-right direction. The middle part of the first mounting plate 13 is threadedly connected to a vertically arranged lifting screw rod 16, and the lifting screw rod 16 can limit the maximum descending height of the first mounting plate 13. The lower end of the guide rod 15 is fixedly connected to the second mounting plate 1 arranged in a left-right direction. 4, a flaw detection head 7 is arranged in the middle of the lower surface of the second mounting plate 14, and auxiliary support wheels 12 are arranged at the left and right ends of the lower surface of the second mounting plate 14. When the jacking screw rod 16 moves upward, under the action of gravity, the auxiliary support wheel 12 can fall directly on the track. At this time, the flaw detection head 7 can detect the track. On the contrary, when the jacking screw rod 16 moves downward relative to the first mounting plate 13, the lower end of the jacking screw rod 16 is pressed against the extending plate 6. At this time, the first mounting plate 13 and the second mounting plate 14 are both propped up. At this time, the auxiliary support wheel 12 and the flaw detection head 7 are both at a high position, which can facilitate the rapid transfer of the inspection vehicle.

[0031] During the implementation of this embodiment, two operators are required to lift the inspection vehicle above the track.

[0032] During the inspection process, the lifting screw rod 16 is rotated, the sliding seats 17 are separated from each other, and the rail support wheels 22 extend outward. When the distance between the front and rear rail support wheels 22 meets the track gauge, the rotation stops. At this time, the operator lifts the inspection vehicle above the track and ensures that the four rail walking wheels 32 are directly above the track. The inspection vehicle is placed on the track. At this time, the rail support wheels 22 automatically adjust the front and rear positions. The inspection vehicle is in the center of the track, the lifting screw rod 16 is rotated, and the auxiliary support wheels 12 fall on the track. Various inspection equipment are activated. The operator sits on the workbench 34 and rotates the rail support wheels 22 through the driver 23. The inspection vehicle moves along the track and inspects the track. The flaw detection head 7 inspects the inside and welding parts of the track. The driver 23 detects the angular velocity of the four rail support wheels 22, thereby judging the curvature and curvature of the track itself.

[0033] Transfer processing, reversely rotate the lifting screw rod 16, move the auxiliary support wheel 12 to a higher place, lift the inspection vehicle off the track, and the travel wheel 32 falls to the ground. At this time, reversely rotate the spacing adjustment screw rod 27, adjust the position of the slider 29 to the left and right, and insert the limit rod 33 into the limit sleeve 30. At this time, the travel wheel 32 is driven to rotate by the driver 23, and the direction of the inspection vehicle is controlled by the different rotation speeds of the four travel wheels 32, so that the inspection vehicle can move autonomously.

[0034] The present invention is applicable to a railway track inspection vehicle. By arranging four rail support wheels 22 that can rotate autonomously and measure speed, the inspection vehicle can directly land on the track and inspect two rails at the same time. Due to the movement of the rail support wheels 22, the speed of the four running wheels 32 can be adjusted individually, thereby realizing the movement and steering of the inspection vehicle on the ground, making the transfer of the inspection vehicle more convenient.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A railway track inspection vehicle, characterized in that: It includes an I-shaped base, a walking mechanism and a detection mechanism; The detection mechanism comprises a fixed block arranged in the middle of the I-shaped base, a telescopic sleeve is arranged on the side of the fixed block, a telescopic rod is slidably connected to the telescopic sleeve, an extension plate is arranged at the end of the telescopic rod, and a flaw detection head is arranged on the side of the extension plate close to the ground; The walking mechanism includes guide columns arranged on both sides of the I-shaped base, and sliding seats are slidably connected on both sides of the guide columns. The side of the sliding seat away from the I-shaped base is rotatably connected to one end of the first support plate, and the other end of the first support plate is rotatably connected to one side of the first mounting frame. The other side of the first mounting frame is rotatably connected to one end of the second support plate, and the other end of the second support plate is rotatably connected to the end of the I-shaped base. The first mounting frame is rotatably connected to a rail support wheel.

2. A railway track inspection vehicle according to claim 1, characterized in that: The cross section of the rail support wheel is trapezoidal, and the first mounting frame is provided with a driver for driving the rail support wheel to rotate and detecting the angular velocity of the rail support wheel.

3. A railway track inspection vehicle according to claim 2, characterized in that: A sliding block slidably connected to the guide column is arranged between the sliding seat and the I-shaped base, a bearing seat is arranged on the sliding block, and the bearing seat is rotatably connected to a running wheel coaxially arranged with the rail support wheel, and the diameter of the running wheel is larger than the diameter of the rail support wheel.

4. A railway track inspection vehicle according to claim 3, characterized in that: The end of the traveling wheel is fixedly connected to a limiting sleeve, and the end of the rail supporting wheel is fixedly connected to a limiting rod matched with the limiting sleeve.

5. The railway track inspection vehicle according to claim 1, characterized in that: Crossbeams are arranged on both sides of the I-beam base, the ends of the crossbeams are fixedly connected to the sliding seats, a roller cooperating with the I-beam base is arranged on the side of the crossbeam close to the I-beam base, a bracket is arranged on the I-beam base, the bracket is rotatably connected to a spacing adjustment screw rod, and the spacing adjustment screw rod is threadedly connected to a nut block fixedly connected to the crossbeam.

6. The railway track inspection vehicle according to claim 1, characterized in that: A cross bar is arranged on the side of the extending plate, and the cross bar is slidably connected with a sliding block fixedly connected with the first mounting frame.

7. A railway track inspection vehicle according to claim 6, characterized in that: Guide rods are slidably connected to both sides of the extended plate, and the end of the guide rod away from the ground is fixedly connected to the first mounting plate, the middle part of the first mounting plate is threadedly connected to a lifting screw rod that cooperates with the extended plate, the end of the guide rod close to the ground is fixedly connected to the second mounting plate, the middle part of the second mounting plate is fixedly connected to the flaw detection head, second mounting frames are arranged on both sides of the second mounting plate, and the second mounting frames are rotatably connected to auxiliary support wheels.

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