Driving device for rail robot

By introducing a spring adjustment mechanism into the inspection robot's drive unit, the problem of unadjustable clamping force was solved, enabling automatic adjustment of the drive wheels when passing obstacles, extending the life of the rubber-coated wheels and reducing motor power consumption.

CN224256646UActive Publication Date: 2026-05-19成都圭目机器人有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
成都圭目机器人有限公司
Filing Date
2025-06-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing inspection robots, the spring-mounted drive system cannot adjust the compression amount, resulting in excessive or insufficient clamping force. This leads to accelerated wear or slippage of the rubber-coated wheels, affecting their lifespan and power consumption.

Method used

A spring adjustment mechanism is adopted, which adjusts the compression of the spring through the adjustment plate and bolts, thereby adjusting the clamping force between the drive wheel and the T-shaped track to avoid excessive or insufficient clamping force.

Benefits of technology

This technology enables the drive wheel to automatically adjust its clamping force when passing obstacles, extending the life of the rubber-coated wheel and reducing motor power consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a driving device for a rail robot, which comprises a mounting frame, guide wheels and a bearing wheel are arranged at the upper end of the mounting frame, the guide wheels are positioned on two sides of the bearing wheel, the guide wheels and the bearing wheel are positioned on a T-shaped rail, a driving motor is mounted on the side surface of the mounting frame, a power output end of the driving motor is connected with a driving wheel, and a power output end of the driving motor is connected with a driving motor. The driving wheel is located on the lower surface of the T-shaped rail, and a spring adjusting mechanism is further arranged on the side face of the mounting frame and used for adjusting the pressing force between the driving wheel and the T-shaped rail. The utility model has the beneficial effects that: a worker adjusts the compression amount of the spring by adjusting the spring adjusting mechanism so as to adjust the pressing force of the T-shaped track, when the driving motor drives the driving wheel to pass through an obstacle on the T-shaped track, the spring as a suspension of the driving wheel is compressed, and when passing through the obstacle, the spring resets, so that the driving wheel can be driven to rotate. Therefore, the driving wheel moves up and down, and consequences caused by too large or too small pressing force are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of track robot technology, and in particular to a drive device for track robots. Background Technology

[0002] Currently, in coal mines, petrochemical plants, and power plants, inspection robots are gradually replacing manual inspections to improve operational efficiency, safety, and stability. These robots primarily rely on cameras mounted on a pan-tilt-zoom (PTZ) unit to obtain high-definition video of the inspection environment, enabling unmanned operation. Most existing inspection robots use friction drive between rubber-coated wheels and metal tracks. The clamping force between the rubber-coated wheels and the tracks is typically provided by springs. However, most springs are fixedly installed, making their compression adjustable. This can lead to excessive or insufficient clamping force. Excessive clamping force accelerates wear on the rubber-coated wheels, reduces their lifespan, and increases motor power consumption; insufficient clamping force causes the rubber-coated wheels to slip. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drive device for a track robot.

[0004] The purpose of this utility model is achieved through the following technical solution: a drive device for a track robot, including a mounting frame, a guide wheel and a load-bearing wheel are provided at the upper end of the mounting frame, the guide wheel is located on both sides of the load-bearing wheel, and both the guide wheel and the load-bearing wheel are located on a T-shaped track, a drive motor is installed on the side of the mounting frame, the power output end of the drive motor is connected to the drive wheel, the drive wheel is located on the lower surface of the T-shaped track, and a spring adjustment mechanism is also provided on the side of the mounting frame, the spring adjustment mechanism is used to adjust the clamping force between the drive wheel and the T-shaped track.

[0005] Preferably, the spring adjustment mechanism includes an adjustment plate a, an adjustment plate b, and a spring. A fixed plate is installed on the side of the mounting bracket. The adjustment plate b is installed on the top of the fixed plate by bolts, and a spring adjustment bolt is provided at the outer end of the adjustment plate b. The end of the spring adjustment bolt abuts against the upper surface of the fixed plate. A locking nut is also provided on the spring adjustment bolt. The mounting bracket has adjustment grooves a and b. The end of the adjustment plate b is installed in the adjustment groove b by screws a. The adjustment plate a has an adjustment groove c corresponding to the adjustment groove a. Screws b are installed in the adjustment grooves c and b, and a spring is installed between the adjustment plate and the adjustment plate b.

[0006] Preferably, the side of the mounting bracket is provided with a through hole, the adjusting plate a is located outside the through hole, and the adjusting plate a is connected to the drive motor mounting plate. The drive motor is mounted on the drive motor mounting plate, and the diameter of the through hole is larger than the diameter of the drive motor mounting plate.

[0007] Preferably, a mounting plate is installed below the mounting bracket.

[0008] The present invention has the following advantages: The operator can adjust the compression of the spring by adjusting the spring adjustment mechanism, thereby adjusting the clamping force of the T-shaped track. When the drive motor drives the drive wheel to pass through the obstacle on the T-shaped track, the spring, which serves as the suspension of the drive wheel, will be compressed. After passing through the obstacle, it will reset, thereby allowing the drive wheel to move up and down, avoiding the consequences of excessive or insufficient clamping force. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the drive device.

[0010] In the diagram, 1-T-shaped track, 2-mounting bracket, 3-load-bearing wheel, 4-guide wheel, 5-drive wheel, 6-drive motor, 7-adjusting plate a, 8-adjusting groove a, 9-spring, 10-adjusting plate b, 11-fixed plate, 12-mounting plate, 13-spring adjusting bolt, 14-locking nut. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0012] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0014] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In this embodiment, as Figure 1 As shown, a drive device for a track robot includes a mounting frame 2. A guide wheel 4 and a load-bearing wheel 3 are mounted on the upper end of the mounting frame 2. The guide wheel 4 is located on both sides of the load-bearing wheel 3, and both the guide wheel 4 and the load-bearing wheel 3 are located on a T-shaped track 1. A drive motor 6 is mounted on the side of the mounting frame 2. The power output end of the drive motor 6 is connected to a drive wheel 5, which is located on the lower surface of the T-shaped track 1. A spring adjustment mechanism is also provided on the side of the mounting frame 2. The spring adjustment mechanism is used to adjust the clamping force between the drive wheel 5 and the T-shaped track 1. The operator adjusts the compression of the spring 9 by adjusting the spring adjustment mechanism, thereby adjusting the clamping force of the T-shaped track 1. When the drive motor 6 drives the drive wheel 5 past an obstacle on the T-shaped track 1, the spring 9, acting as a suspension for the drive wheel 5, is compressed. After passing the obstacle, it returns to its original position, causing the drive wheel 5 to move up and down, avoiding the consequences of excessive or insufficient clamping force. In this embodiment, both the guide wheel 4 and the load-bearing wheel 3 are existing products and have not been improved, so they will not be described in detail here. The guide wheel 4 moves on the side of the T-shaped track 1, and the load-bearing wheel 3 moves on the upper surface of the T-shaped track 1.

[0018] Furthermore, the spring adjustment mechanism includes an adjustment plate a7, an adjustment plate b10, and a spring 9. A fixed plate 11 is mounted on the side of the mounting bracket 2. The adjustment plate b10 is bolted to the top of the fixed plate 11, and a spring adjustment bolt 13 is provided at the outer end of the adjustment plate b10. The end of the spring adjustment bolt 13 abuts against the upper surface of the fixed plate 11. A locking nut 14 is also provided on the spring adjustment bolt 13. The mounting bracket 2 has adjustment grooves a8 and b. The end of the adjustment plate b10 is installed in the adjustment groove b by a screw a. The adjustment plate a7 has an adjustment groove c corresponding to the adjustment groove a8. Screws b are installed in the adjustment grooves c and b, and a spring 9 is installed between the adjustment plates a7 and b10. Furthermore, a through hole is provided on the side of the mounting bracket 2. The adjustment plate a7 is located outside the through hole and is connected to the drive motor mounting plate. The drive motor 6 is mounted on the drive motor mounting plate, and the diameter of the through hole is larger than the diameter of the drive motor mounting plate. Specifically, the operator adjusts the compression of spring 9 using spring adjusting bolt 13. During adjustment, locking nut 14 needs to be loosened, and rotating spring adjusting bolt 13 causes adjusting plate b10 to move up and down within adjusting groove b (screw a is loose at this time), thus adjusting the compression of spring 9. When spring 9 is compressed, it pushes adjusting plate a7 upwards. Adjusting plate a7 is connected to the drive motor mounting plate, thus simultaneously pushing drive wheel 5 upwards, thereby adjusting the pressure of drive wheel 5 on T-shaped track 1. After adjusting to the appropriate position, screw a and locking nut 14 are tightened, and spring adjusting bolt 13 is positioned at the outer end of adjusting plate b10, facilitating the operator's adjustment of spring 9. When the drive motor 6 drives the drive wheel 5 to pass over the obstacle on the T-shaped track 1, the adjusting plate a7 will move downward along the adjusting groove a8, thereby compressing the spring 9 and simultaneously driving the drive motor mounting plate to move downward in the through hole, so that the drive wheel 5 can move downward to pass through the obstacle. After passing the obstacle, the spring 9 will return to its original position and drive the drive wheel 5 to move upward, avoiding the consequences of excessive or insufficient clamping force.

[0019] In this embodiment, a mounting plate 12 is installed below the mounting bracket 2. Specifically, the mounting plate 12 is used to mount an existing pan-tilt unit to obtain high-definition video of the inspection environment.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A driving device for a track robot, comprising a mounting frame (2), the upper end of the mounting frame (2) is provided with a guide wheel (4) and a load wheel (3), the guide wheel (4) is located on both sides of the load wheel (3), and the guide wheel (4) and the load wheel (3) are located on a T-shaped track (1), characterized in that: A drive motor (6) is mounted on the side of the mounting bracket (2). The power output end of the drive motor (6) is connected to the drive wheel (5). The drive wheel (5) is located on the lower surface of the T-shaped track (1). A spring adjustment mechanism is also provided on the side of the mounting bracket (2). The spring adjustment mechanism is used to adjust the clamping force between the drive wheel (5) and the T-shaped track (1).

2. Drive arrangement for a rail robot according to claim 1, characterized in that The spring adjustment mechanism includes an adjustment plate a (7), an adjustment plate b (10), and a spring (9). A fixed plate (11) is installed on the side of the mounting bracket (2). The adjustment plate b (10) is installed on the top of the fixed plate (11) by bolts. A spring adjustment bolt (13) is provided at the outer end of the adjustment plate b (10). The end of the spring adjustment bolt (13) abuts against the upper surface of the fixed plate (11). A locking nut (14) is also provided on the spring adjustment bolt (13). An adjustment groove a (8) and an adjustment groove b are provided on the mounting bracket (2). The end of the adjustment plate b (10) is installed in the adjustment groove b by screw a. An adjustment groove c corresponding to the adjustment groove a (8) is provided on the adjustment plate a (7). Screw b is installed in the adjustment groove c and the adjustment groove b. The spring (9) is installed between the adjustment plate a (7) and the adjustment plate b (10).

3. Drive arrangement for a rail robot according to claim 2, characterized in that: The mounting bracket (2) has a through hole on its side. The adjusting plate a (7) is located outside the through hole and is connected to the drive motor mounting plate. The drive motor (6) is mounted on the drive motor mounting plate. The diameter of the through hole is larger than the diameter of the drive motor mounting plate.

4. The drive arrangement for a rail robot according to claim 1, characterized in that: A mounting plate (12) is installed below the mounting bracket (2).