Subway track flaw detection robot

By designing a subway track flaw detection robot and using a laser scanner and motor drive system, the problems of time-consuming and low-precision manual flaw detection have been solved, and automated, fast, and high-precision track inspection has been achieved.

CN223339443UActive Publication Date: 2025-09-16GUIZHOU VOCATIONAL & TECH COLLEGE OF ECONOMICS & TRADE
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Patent Information

Application Number
CN202422343440.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-09-16
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

Existing subway track flaw detection mainly relies on manual tapping of the tracks, which wastes manpower and is time-consuming. In addition, there are errors in the flaw detection accuracy, which affects the repair process.

Method used

A subway track flaw detection robot is designed. It uses a laser scanner combined with a linear motor, gear rack and pulley structure. It realizes automatic flaw detection through motor drive to ensure detection accuracy.

Benefits of technology

It realizes automated, fast and high-precision rail flaw detection, reduces manual intervention, and improves the accuracy of detection results and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a subway track flaw detection robot which comprises a robot body, one side of the surface of the robot body is fixedly connected with two connecting plates, an adjusting assembly is arranged between the two connecting plates, two moving blocks are arranged outside the adjusting assembly, and the moving blocks are connected with the robot body. Linear motors are fixedly mounted on the surfaces of the two moving blocks correspondingly, the driving ends of the two linear motors are fixedly connected with a laser scanner used for detecting the subway track, and two vertical plates are arranged at the bottom of the robot body. With the adoption of the structure, the movable block can be driven to move relatively under the driving of the bidirectional screw rod, and the laser scanner is driven by the linear motor to move to the position right above the subway track, so that the subway track can be subjected to flaw detection in time; the problem of inconvenience in flaw detection of the metro track by manual beating in the prior art is solved, errors caused by flaw detection of the metro track are avoided, the detection result is more accurate, and the practicability is higher.
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Description

Technical Field

[0001] The utility model relates to the technical field of subway tracks, in particular to a subway track flaw detection robot. Background Art

[0002] The design and construction of subway tracks require consideration of multiple factors, including urban transportation planning, geological conditions, environmental protection, and passenger safety and comfort. Subway tracks are typically constructed in three types: underground, surface, and elevated. The specific type chosen depends on urban planning, geological conditions, and cost budgets. The subway track construction process includes line planning, design, construction, commissioning, and operation. During construction, consideration must also be given to integration with existing transportation systems and potential future line expansion. Equally important is the maintenance and management of subway tracks, including routine inspections, troubleshooting, and ongoing upkeep to ensure the safe, reliable, and efficient operation of the subway system.

[0003] In order to ensure the safety of subway operation during long-term operation, subway tracks need to be inspected regularly. Existing subway track flaw detection mostly relies on maintenance technicians to use hammers to hit the tracks and rely on their own experience to make judgments. Although this can also identify damage points, it is a waste of manpower and time-consuming, and is inconvenient for users. In addition, manual inspection is prone to errors during flaw detection, affecting the accuracy of flaw detection, which brings certain troubles to the subsequent repair process. For this reason, we propose a subway track flaw detection robot. Utility Model Content

[0004] The technical problem to be solved by the present invention is that subway track flaw detection is mostly done by maintenance technicians using a hammer to hit the track and relying on their own experience to make judgments. Although this can also identify the damage points, it is a waste of manpower and time-consuming, and is inconvenient for users to use. In addition, errors are easily generated during flaw detection through manual inspection, which affects the accuracy of flaw detection and brings certain troubles to the subsequent repair process.

[0005] To solve the above technical problems, the present invention adopts a technical solution: providing a subway track flaw detection robot, including a robot body, two connecting plates fixedly connected to one side of the surface of the robot body, an adjustment assembly provided between the two connecting plates, two moving blocks provided on the outside of the adjustment assembly, linear motors fixedly mounted on the surfaces of the two moving blocks, laser scanners for detecting subway tracks fixedly connected to the driving ends of the two linear motors, two vertical plates provided at the bottom of the robot body, two rotating shafts rotatably connected to the opposing surfaces of the two vertical plates, and pulleys fixedly connected to the outsides of the plurality of rotating shafts;

[0006] The bottom of the robot body is rotatably connected to a gear, and racks are provided on both sides of the surface of the gear. The opposite ends of the two racks are fixedly connected to one side of the surface of the corresponding vertical plate. The bottom of the robot body is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to a first motor. The output end of the first motor passes through the connecting frame and is fixedly connected to the bottom of the gear.

[0007] Preferably, the adjustment assembly includes two connecting rods, the two ends of the two connecting rods are fixedly connected to the surfaces of two connecting plates respectively, a bidirectional screw is rotatably connected between the two connecting plates, and the two moving blocks are sleeved and installed on the outside of the two connecting rods and the bidirectional screws, so that the moving blocks can be moved conveniently under the drive of the bidirectional screws.

[0008] Preferably, a second motor is fixedly connected to one side of the surface of one of the connecting plates, and the output end of the second motor passes through one side of the surface of the connecting plate and is fixedly connected to one end of the bidirectional screw. The bidirectional screw can be driven to rotate by the set second motor, making the operation more convenient.

[0009] Preferably, the two racks are meshedly connected with the gear, and the driving directions of the two racks are opposite, so that the two racks can be meshedly driven to move relative to each other under the rotation of the gear.

[0010] Preferably, two slide grooves are provided at the bottom of the robot body, and two sliders are slidably connected to the inner side walls of the two slide grooves. The bottoms of the two sliders are fixedly connected to the tops of the corresponding vertical plates. The sliders are used to slide inside the slide grooves, which can improve the stability of the vertical plates when they move.

[0011] Preferably, an electric motor is fixedly connected to one side of the surface of one of the vertical plates, and the output end of the electric motor passes through the vertical plate and is fixedly connected to one end of the corresponding rotating shaft. The electric motor can drive the rotating shaft on one side of the vertical plate to rotate, thereby driving the pulley to rotate.

[0012] Preferably, the two moving blocks are slidably connected to the two connecting rods, and the two moving blocks are threadedly connected to the bidirectional screws. The rotation of the bidirectional screws facilitates driving the moving blocks, making the operation more convenient.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. By setting up the above-mentioned structure, the utility model can use the bidirectional screw to drive the moving block to move relatively, and the linear motor to move the laser scanner to the top of the subway track, so as to facilitate timely flaw detection of the subway track, solve the problem of inconvenience in manual knocking for flaw detection of the subway track in the past, avoid errors in the flaw detection of the subway track, and make the detection results more accurate and more practical.

[0015] 2. The utility model sets a gear, a rack, a first motor and a pulley and other structures, and uses the first motor to drive the gear to rotate. The rotation of the gear can drive the vertical plate to move, making it easy to move the pulley above the subway track, facilitating stable movement during subway track flaw detection, making the operation more convenient and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-perspective stereoscopic diagram of a subway track flaw detection robot according to the present invention;

[0017] Figure 2 This is a stereoscopic diagram of a subway track flaw detection robot from a second perspective according to the present invention;

[0018] Figure 3 For this utility model Figure 2 A magnified view of the middle panel.

[0019] In the figure: 1. Pulley; 2. Rotating shaft; 3. Connecting plate; 4. Robot body; 5. Connecting rod; 6. Moving block; 7. Bidirectional screw; 8. Second motor; 9. Laser scanner; 10. Linear motor; 11. Electric motor; 12. Rack; 13. First motor; 14. Gear; 15. Connecting frame; 16. Vertical plate; 17. Slider; 18. Slide groove. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] See also Figures 1 to 3A subway track flaw detection robot includes a robot body 4, two connecting plates 3 are fixedly connected to one side of the surface of the robot body 4, an adjustment component is provided between the two connecting plates 3, two moving blocks 6 are provided on the outside of the adjustment component, linear motors 10 are fixedly installed on the surfaces of the two moving blocks 6, the driving ends of the two linear motors 10 are fixedly connected to a laser scanner 9 for detecting subway tracks, and the laser scanner 9 is conveniently driven by the drive of the linear motor 10, two vertical plates 16 are provided at the bottom of the robot body 4, two rotating shafts 2 are rotatably connected to the opposite surfaces of the two vertical plates 16, and pulleys 1 are fixedly connected to the outside of the multiple rotating shafts 2, and the rotation of the rotating shafts 2 facilitates the rotation of the pulleys 1;

[0022] The bottom of the robot body 4 is rotatably connected to a gear 14, and racks 12 are provided on both sides of the surface of the gear 14. The opposite ends of the two racks 12 are fixedly connected to one side of the surface of the corresponding vertical plate 16. The bottom of the robot body 4 is fixedly connected to a connecting frame 15, and the bottom of the connecting frame 15 is fixedly connected to a first motor 13. The output end of the first motor 13 passes through the connecting frame 15 and is fixedly connected to the bottom of the gear 14. The gear 14 can be driven to rotate by the provided first motor 13, which makes the operation more convenient. The two racks 12 are meshed with the gear 14, and the driving directions of the two racks 12 are opposite. The rotation of the gear 14 is utilized. The two racks 12 can be meshed and driven to move relative to each other. Two slide grooves 18 are provided at the bottom of the robot body 4. The inner side walls of the two slide grooves 18 are slidably connected to two sliders 17. The bottoms of the two sliders 17 are fixedly connected to the tops of the corresponding vertical plates 16. The sliders 17 are used to slide inside the slide grooves 18 to improve the stability of the vertical plates 16 when moving. An electric motor 11 is fixedly connected to one side of the surface of one of the vertical plates 16. The output end of the electric motor 11 passes through the vertical plate 16 and is fixedly connected to one end of the corresponding rotating shaft 2. The electric motor 11 can drive the rotating shaft 2 on one side of the vertical plate 16 to rotate, which is convenient for driving the pulley 1 to rotate.

[0023] like Figure 1As shown, the adjustment component includes two connecting rods 5, the two ends of the two connecting rods 5 are fixedly connected to the surfaces of the two connecting plates 3 respectively, and a bidirectional screw 7 is rotatably connected between the two connecting plates 3. The two moving blocks 6 are sleeved and installed on the outside of the two connecting rods 5 and the bidirectional screw 7. The moving block 6 is conveniently moved under the drive of the bidirectional screw 7. A second motor 8 is fixedly connected to one side of the surface of one connecting plate 3, and the output end of the second motor 8 passes through one side of the surface of the connecting plate 3 and is fixedly connected to one end of the bidirectional screw 7. The bidirectional screw 7 can be driven to rotate by the set second motor 8, which makes the operation more convenient. The two moving blocks 6 are slidingly connected to the two connecting rods 5, and the two moving blocks 6 are threadedly connected to the bidirectional screw 7. The rotation of the bidirectional screw 7 facilitates the driving of the moving block 6, which makes the operation more convenient.

[0024] When the utility model is in use, first turn on the first motor 13, the first motor 13 drives the gear 14 to rotate, and after the gear 14 rotates, it drives the rack 12 to move. After the rack 12 moves, it can drive the two vertical plates 16 to move, so that the pulleys 1 on both sides of the vertical plates 16 are above the subway track, turn on the electric motor 11, the electric motor 11 drives the rotating shaft 2 to drive the pulley 1 to rotate, and when the pulley 1 rotates, it can drive the robot body 4 to move, turn on the second motor 8, and the second motor 8 drives the bidirectional screw 7 to rotate. After the bidirectional screw 7 rotates, it can drive the moving block 6 to move, and turn on the linear motor 10 to move the laser scanner 9 above the subway track, so as to facilitate the flaw detection of the subway track, solve the inconvenience of using manual knocking to detect the flaws of the subway track in the past, avoid errors in the flaw detection of the subway track, and make the detection results more accurate and more practical.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A subway track flaw detection robot, comprising a robot body (4), characterized in that: Two connecting plates (3) are fixedly connected to one side of the surface of the robot body (4), an adjustment component is provided between the two connecting plates (3), two moving blocks (6) are provided on the outside of the adjustment component, linear motors (10) are fixedly installed on the surfaces of the two moving blocks (6), and the driving ends of the two linear motors (10) are fixedly connected to a laser scanner (9) for detecting subway tracks. Two vertical plates (16) are provided at the bottom of the robot body (4), and two rotating shafts (2) are rotatably connected to the opposite surfaces of the two vertical plates (16), and the outsides of the plurality of rotating shafts (2) are all sleeved and fixedly connected with pulleys (1); The bottom of the robot body (4) is rotatably connected to a gear (14), and racks (12) are provided on both sides of the surface of the gear (14). The opposite ends of the two racks (12) are respectively fixedly connected to one side of the surface of the corresponding vertical plate (16). The bottom of the robot body (4) is fixedly connected to a connecting frame (15), and the bottom of the connecting frame (15) is fixedly connected to a first motor (13), and the output end of the first motor (13) passes through the connecting frame (15) and is fixedly connected to the bottom of the gear (14).

2. The subway track flaw detection robot according to claim 1, characterized in that: The adjustment assembly comprises two connecting rods (5), the two ends of the two connecting rods (5) are fixedly connected to the surfaces of two connecting plates (3), a bidirectional screw (7) is rotatably connected between the two connecting plates (3), and the two moving blocks (6) are sleeved and installed on the outside of the two connecting rods (5) and the bidirectional screw (7).

3. The subway track flaw detection robot according to claim 2, characterized in that: A second motor (8) is fixedly connected to one side of the surface of one of the connecting plates (3), and an output end of the second motor (8) passes through one side of the surface of the connecting plate (3) and is fixedly connected to one end of the bidirectional screw (7).

4. The subway track flaw detection robot according to claim 1, characterized in that: The two racks (12) are meshedly connected with the gear (14), and the driving directions of the two racks (12) are opposite.

5. The subway track flaw detection robot according to claim 1, characterized in that: Two slide grooves (18) are provided at the bottom of the robot body (4), and the inner side walls of the two slide grooves (18) are slidably connected to two sliders (17), and the bottoms of the two sliders (17) are fixedly connected to the tops of the corresponding vertical plates (16).

6. The subway track flaw detection robot according to claim 1, characterized in that: An electric motor (11) is fixedly connected to one side of the surface of one of the vertical plates (16), and an output end of the electric motor (11) passes through the vertical plate (16) and is fixedly connected to one end of the corresponding rotating shaft (2).

7. The subway track flaw detection robot according to claim 2, characterized in that: The two moving blocks (6) are slidably connected to the two connecting rods (5), and the two moving blocks (6) are threadedly connected to the bidirectional screw (7).