Inspection robot track assembly

By setting a first and a second fixing component on the sleepers and using a connector to physically connect the track and the sleeper assembly, the problem of shortened sleeper life caused by chemical anchors is solved, a stable connection between the track and the sleeper assembly is achieved, and the reliability of the inspection robot operation is improved.

CN224395332UActive Publication Date: 2026-06-23SHENHUA RAIL & FREIGHT WAGONS TRANSPORT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENHUA RAIL & FREIGHT WAGONS TRANSPORT
Filing Date
2025-06-11
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, chemical anchor bolt fixing methods shorten the lifespan of sleepers, affecting the stability and durability of the inspection robot's track.

Method used

A physical connection method is adopted, which involves setting a first and a second fixing member on the sleepers and using connectors to connect the rail to the sleeper assembly, thus avoiding the use of chemical anchors.

Benefits of technology

The connection strength between the track and sleeper assembly was improved, avoiding the impact of chemical anchors on the sleeper life and enhancing the stability and durability of the inspection robot operation.

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Abstract

The utility model relates to freight train maintenance equipment technical field, especially a kind of track assembly of inspection robot. Track assembly of inspection robot includes sleeper assembly, track and second fixing part. Sleeper assembly is provided with two steel rails for the operation of freight train, sleeper assembly includes multiple first sleepers and multiple second sleepers, first sleeper is provided with first fixing part, multiple first sleepers and multiple second sleepers are staggered along the extension direction of steel rail. Track is for the operation of inspection robot, and track is located between two steel rails. Second fixing part connects track, and second fixing part and first fixing part are connected by connecting piece, to make track lap joint on sleeper assembly.
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Description

Technical Field

[0001] This utility model relates to the technical field of freight train maintenance equipment, and in particular to a track assembly for an inspection robot. Background Technology

[0002] With the continuous growth of railway freight volume in my country, the inspection of freight train undercarriages is a core element in ensuring railway transportation safety and improving operational efficiency. Because inspection robots offer advantages such as high efficiency, accurate fault identification, and the ability to operate in complex environments, they are commonly used to replace manual inspections by moving along the tracks to inspect the undercarriages of freight trains.

[0003] In related technologies, tracks are usually fixed to sleepers using chemical anchors, but this method shortens the lifespan of the sleepers. Utility Model Content

[0004] This utility model provides a track assembly for an inspection robot, which replaces the use of chemical anchors to fix the track to the sleepers.

[0005] This utility model provides a track assembly for an inspection robot, comprising:

[0006] The sleeper assembly is provided with two steel rails for the operation of freight trains. The sleeper assembly includes a plurality of first sleepers and a plurality of second sleepers. The first sleepers are provided with a first fixing member. The plurality of first sleepers and the plurality of second sleepers are staggered along the extension direction of the steel rails.

[0007] A track, for the inspection robot to run on, is located between the two steel rails; and

[0008] The second fixing member is connected to the track, and the second fixing member is connected to the first fixing member by a connector, so that the track overlaps the sleeper assembly.

[0009] In some embodiments, the track includes a first support portion, a second support portion, and a connecting portion. The first support portion and the second support portion are spaced apart, and the connecting portion is connected between the first support portion and the second support portion. The width of the first support portion and the width of the second support portion are both greater than the width of the connecting portion. The first support portion overlaps the sleeper assembly and is connected to the second fixing member. The second support portion is used to support the inspection robot and allow the inspection robot to run.

[0010] In some embodiments, the second fastener includes:

[0011] The first fixing plate is disposed on the first sleeper and located on one side of the first bearing part. The first fixing plate is connected to the first fixing member through the connector.

[0012] A second fixing plate overlaps the first bearing portion on the side away from the first sleeper, and a gap is formed between the second fixing plate and the connecting portion; and

[0013] A connecting plate, which is connected between the first fixing plate and the second fixing plate.

[0014] In some embodiments, there are two second fasteners, which are respectively disposed on both sides of the first bearing portion.

[0015] In some embodiments, the surface of the second support portion facing away from the first support portion is configured as an arc surface.

[0016] In some embodiments, the first fixing member is provided with an internal thread, the connecting member is provided with an external thread, and the connecting member is connected to the first fixing member by a thread.

[0017] In some embodiments, a mileage correction component is also included, which is disposed on the first sleeper. The mileage correction component is configured to pair with the inspection robot to determine the position of the inspection robot when the inspection robot moves to a preset position corresponding to the mileage correction component.

[0018] In some embodiments, there are multiple odometer correction components, and the number of odometer correction components is less than the number of first sleepers. Each odometer correction component is installed on a corresponding first sleeper, and the number of first sleepers between two adjacent odometer correction components is the same.

[0019] In some embodiments, the odometer correction component includes a magnet that is used to cooperate with a magnetic sensor on the inspection robot when the inspection robot moves to the preset position to determine the relative position of the inspection robot on the track.

[0020] In some embodiments, the odometer correction component further includes a tag that, when the inspection robot moves to the preset position, cooperates with a position sensor on the inspection robot to determine the absolute position of the inspection robot on the track.

[0021] This application provides an inspection robot track assembly, which, compared with the prior art, has at least the following features:

[0022] Beneficial effects:

[0023] A first fixing member is installed on the first sleeper at intervals, and a second fixing member is connected to the first fixing member through a connector, so that the track is connected to multiple first sleepers, thereby connecting the track to the first sleepers. The physical connection between the track and the sleeper assembly can ensure the connection strength between the track and the sleeper assembly, while avoiding the impact on the life of the sleepers caused by the use of chemical anchors in the prior art. Attached Figure Description

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of the inspection robot track assembly provided in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the first sleeper provided in an embodiment of this application;

[0027] Figure 3 This is a cross-sectional view of the inspection robot track assembly provided in the embodiments of this application;

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0029] Figure label:

[0030] 1-Inspection robot track assembly;

[0031] 11-Sleeper assembly; 111-First sleeper; 112-Second sleeper;

[0032] 12-Rail; 121-First support part; 122-Second support part; 123-Connecting part;

[0033] 131-First fastener; 132-Second fastener; 1321-First fixing plate; 1322-Second fixing plate; 1323-Connecting plate; 133-Connector;

[0034] 14-Odometer calibration component; 141-Magnet; 142-Label. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0038] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0039] Please refer to the following: Figure 1 , Figure 2 and Figure 3 This application provides a track assembly 1 for an inspection robot, including a sleeper assembly 11, a track 12, and a second fixing member 132. The sleeper assembly 11 has two steel rails for freight trains. The sleeper assembly 11 includes multiple first sleepers 111 and multiple second sleepers 112. Each first sleeper 111 is equipped with a first fixing member 131. The multiple first sleepers 111 and multiple second sleepers 112 are staggered along the extension direction of the steel rails. The track 12 is for the inspection robot to run on and is located between the two steel rails. The second fixing member 132 connects to the track 12, and the second fixing member 132 is connected to the first fixing member 131 via a connector 133, so that the track 12 overlaps the sleeper assembly 11.

[0040] In this embodiment, the sleeper assembly 11 includes multiple first sleepers 111 and multiple second sleepers 112. The first sleepers 111 have a first fixing member 131 pre-embedded in them, while the second sleepers 112 are normal sleepers, meaning the first fixing member 131 is not pre-embedded in them. The multiple first sleepers 111 and multiple second sleepers 112 are staggered along the extension direction of the rail. The rail 12 overlaps the sleeper assembly 11 and is connected to the second fixing member 132, which is connected to the first fixing member 131 via a connector 133, thereby connecting the rail 12 to the sleeper assembly 11.

[0041] In this embodiment, a first fixing member 131 is provided on the first sleeper 111 at intervals, and a second fixing member 132 is connected to the first fixing member 131 through a connector 133, so that the track 12 is connected to multiple first sleepers 111, thereby connecting the track 12 to the first sleepers 111. The physical connection between the track 12 and the sleeper assembly 11 can ensure the connection strength between the track 12 and the sleeper assembly 11, while avoiding the impact on the life of the sleepers caused by the use of chemical anchors in the prior art.

[0042] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the track 12 includes a first support portion 121, a second support portion 122, and a connecting portion 123. The first support portion 121 and the second support portion 122 are spaced apart, and the connecting portion 123 is connected between the first support portion 121 and the second support portion 122. The width of the first support portion 121 and the width of the second support portion 122 are both greater than the width of the connecting portion 123. The first support portion 121 overlaps the sleeper assembly 11 and is connected to the second fixing member 132. The second support portion 122 is used to support the inspection robot and allow the inspection robot to run.

[0043] The width of the first support part 121 and the width of the second support part 122 are both greater than the width of the connecting part 123, so that the track 12 is designed into an I-shaped structure, which can improve the connection stability between the inspection robot and the track 12.

[0044] For example, the inspection robot has a rail assembly, the second support portion 122 is inserted into the rail assembly, and the rail assembly is connected to two bearings. The two bearings can be located on both sides of the connecting portion 123, and the outer rings of the two bearings can both contact the two sides of the connecting portion 123, or the outer ring of one bearing can contact the side of the connecting portion 123, and the outer ring of the other bearing can contact the second support portion 122.

[0045] Please continue reading. Figure 3 and Figure 4 In some embodiments, the second fixing member 132 includes a first fixing plate 1321, a second fixing plate 1322, and a connecting plate 1323. The first fixing plate 1321 is disposed on the first sleeper 111 and located on one side of the first supporting portion 121, and the first fixing plate 1321 is connected to the first fixing member 131 via a connecting member 133. The second fixing plate 1322 overlaps on the side of the first supporting portion 121 away from the first sleeper 111, and a gap is formed between the second fixing plate 1322 and the connecting portion 123. The connecting plate 1323 connects the first fixing plate 1321 and the second fixing plate 1322.

[0046] In this embodiment, the first fixing plate 1321 is attached to the first sleeper 111, and the second fixing plate 1322 is attached to the surface of the first bearing part 121 away from the first sleeper 111. The first fixing plate 1321 and the second fixing plate 1322 are connected by a connecting plate 1323. The first fixing plate 1321 is connected to the first fixing member 131 pre-embedded on the first sleeper 111 by a connector 133. The connection between the connector 133 and the first fixing member 131 fixes the first fixing plate 1321 to the first sleeper 111, thereby pressing the first bearing part 121 onto the first sleeper 111 by the second fixing plate 1322.

[0047] Please refer to it again. Figure 3 In some embodiments, there are two second fasteners 132, which are respectively disposed on both sides of the first support portion 121.

[0048] Two second fasteners 132 are respectively disposed on both sides of the first bearing part 121, which can balance the pressure applied to the first bearing part 121 and prevent the first bearing part 121 from deflecting due to pressure on one side. At the same time, the pressure applied by the two second fasteners 132 to the first bearing part 121 can ensure the stability of the first bearing part 121 on the sleeper assembly 11 and prevent the first bearing part 121 from shaking due to insufficient pressure.

[0049] Please refer to it again. Figure 3 and Figure 4 In some embodiments, the surface of the second support portion 122 that faces away from the first support portion 121 is configured as an arc surface.

[0050] Understandably, since the second support portion 122 needs to be inserted into the rail assembly of the inspection robot, the surface of the second support portion 122 facing away from the first support portion 121 cannot accumulate debris. If debris accumulates on the surface of the second support portion 122 facing away from the first support portion 121, it may cause the second support portion 122 to get stuck between the rail assembly and the inspection robot, affecting the inspection robot. To avoid the above situation, in this embodiment, the surface of the second support portion 122 facing away from the first support portion 121 is configured as an arc surface. When debris falls on the surface of the second support portion 122 facing away from the first support portion 121, it will fall along the arc surface, preventing debris from accumulating on the surface of the second support portion 122 facing away from the first support portion 121.

[0051] In some embodiments, the first fixing member 131 is provided with an internal thread, the connecting member 133 is provided with an external thread, and the connecting member 133 and the first fixing member 131 are connected by threads.

[0052] For example, the first fastener 131 is a metal threaded sleeve, and the connector 133 is a bolt.

[0053] The connector 133 and the first fixing member 131 are connected by threads, which can enhance the connection strength between the connector 133 and the first fixing member 131 and prevent the connection between the connector 133 and the first fixing member 131 from loosening due to vibration generated during the operation of the inspection robot.

[0054] Please see Figure 3 In some embodiments, the inspection robot track assembly 1 further includes a mileage correction assembly 14, which is disposed on the first sleeper 111. The mileage correction assembly 14 is configured to pair with the inspection robot to determine the position of the inspection robot when the inspection robot runs to a preset position corresponding to the mileage correction assembly 14.

[0055] In this embodiment, a mileage correction component 14 is provided on the first sleeper 111. When the inspection robot runs to the corresponding preset position, the mileage correction component 14 is paired with the inspection robot, so that the position of the inspection robot can be determined. For example, when the inspection robot malfunctions, it is convenient for staff to quickly determine the position of the inspection robot for maintenance.

[0056] In some embodiments, there are multiple mileage correction components 14, and the number of mileage correction components 14 is less than the number of first sleepers 111. Each mileage correction component 14 is installed on a corresponding first sleeper 111, and the number of first sleepers 111 between two adjacent mileage correction components 14 is the same.

[0057] Understandably, because the multiple first sleepers 111 and the multiple second sleepers 112 are staggered, the distance between two adjacent first sleepers 111 is relatively short. However, the inspection robot is quite long, generally longer than the distance between two adjacent first sleepers 111. Therefore, if each first sleeper 111 is equipped with a mileage correction component 14 (i.e., the number of mileage correction components 14 is the same as the number of first sleepers 111), two mileage correction components 14 might simultaneously determine the inspection robot's position, causing confusion in the robot's location determination. Furthermore, the short distance between two mileage correction components 14 leads to resource waste. Therefore, in this embodiment, the number of mileage correction components 14 is less than the number of first sleepers 111, making the distance between two adjacent mileage correction components 14 greater than the distance between two adjacent first sleepers 111. By increasing the distance between two adjacent mileage correction components 14, it is ensured that the inspection robot pairs with only one mileage correction component 14 at a time, thus clearly defining the inspection robot's position. For example, there are four first sleepers 111 between two adjacent mileage correction components 14. Of course, there may be other numbers of first sleepers 111 between two adjacent mileage correction components 14, which is not limited here.

[0058] Please refer to it again. Figure 3 In some embodiments, the mileage correction component 14 includes a magnet 141, which is used to cooperate with a magnetic sensor on the inspection robot when the inspection robot runs to a preset position to determine the relative position of the inspection robot on the track 12.

[0059] For example, the preset position can be directly above the odometer correction component 14. That is, when the inspection robot runs directly above the odometer correction component 14, the magnetic sensor on the inspection robot and the magnet 141 are paired. After pairing, the magnetic sensor can sense the change in magnetic field by changing the distance between the inspection robot and the odometer correction component 14, thereby determining the relative position between the inspection robot and the paired odometer correction component 14 by the change in magnetic field.

[0060] Please continue reading. Figure 3 In some embodiments, the odometer correction component 14 further includes a tag 142, which is used to cooperate with the position sensor on the inspection robot when the inspection robot runs to a preset position to determine the absolute position of the inspection robot on the track 12.

[0061] For example, the preset position can be directly above the odometer correction component 14. That is, when the inspection robot runs directly above the odometer correction component 14, the position sensor on the inspection robot is paired with the tag 142. After pairing, the number of odometer correction components 14 that the inspection robot is paired with can be obtained, thereby obtaining the absolute position of the inspection robot.

[0062] By obtaining the absolute position of the inspection robot and the relative position between the inspection robot and the paired mileage correction component 14 through the mileage correction component 14, the actual position of the inspection robot can be obtained. The actual position of the inspection robot is equal to the sum of the absolute position of the inspection robot and the relative position between the inspection robot and the paired mileage correction component 14.

[0063] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A track assembly for an inspection robot, characterized in that, include: The sleeper assembly is provided with two steel rails for the operation of freight trains. The sleeper assembly includes a plurality of first sleepers and a plurality of second sleepers. The first sleepers are provided with a first fixing member. The plurality of first sleepers and the plurality of second sleepers are staggered along the extension direction of the steel rails. A track for the inspection robot to run on, the track being located between the two steel rails; as well as The second fastener is connected to the track, and the second fastener is connected to the first fastener via a connector so that the track overlaps the sleeper assembly.

2. The inspection robot track assembly according to claim 1, characterized in that, The track includes a first support part, a second support part, and a connecting part. The first support part and the second support part are spaced apart. The connecting part is connected between the first support part and the second support part. The width of the first support part and the width of the second support part are both greater than the width of the connecting part. The first support part overlaps the sleeper assembly and is connected to the second fixing member. The second support part is used to support the inspection robot and allow the inspection robot to run.

3. The inspection robot track assembly according to claim 2, characterized in that, The second fastener includes: The first fixing plate is disposed on the first sleeper and located on one side of the first bearing part. The first fixing plate is connected to the first fixing member through the connector. A second fixing plate overlaps the first bearing portion on the side away from the first sleeper, and a gap is formed between the second fixing plate and the connecting portion; and A connecting plate, which is connected between the first fixing plate and the second fixing plate.

4. The inspection robot track assembly according to claim 3, characterized in that, There are two second fasteners, which are respectively disposed on both sides of the first bearing portion.

5. The inspection robot track assembly according to claim 2, characterized in that, The surface of the second support portion that is opposite to the first support portion is configured as an arc surface.

6. The inspection robot track assembly according to any one of claims 1-4, characterized in that, The first fixing member is provided with an internal thread, and the connecting member is provided with an external thread. The connecting member and the first fixing member are connected by threads.

7. The inspection robot track assembly according to any one of claims 1-4, characterized in that, It also includes a mileage correction component, which is disposed on the first sleeper. The mileage correction component is configured to pair with the inspection robot to determine the position of the inspection robot when the inspection robot runs to a preset position corresponding to the mileage correction component.

8. The inspection robot track assembly according to claim 7, characterized in that, The number of mileage correction components is multiple, and the number of mileage correction components is less than the number of first sleepers. Each mileage correction component is installed on a corresponding first sleeper, and the number of first sleepers between two adjacent mileage correction components is the same.

9. The inspection robot track assembly according to claim 7, characterized in that, The mileage correction component includes a magnet, which is used to cooperate with a magnetic sensor on the inspection robot when the inspection robot runs to the preset position to determine the relative position of the inspection robot on the track.

10. The inspection robot track assembly according to claim 9, characterized in that, The odometer correction component also includes a tag, which is used to cooperate with the position sensor on the inspection robot when the inspection robot runs to the preset position to determine the absolute position of the inspection robot on the track.