A multifunctional track inspection device

Abstract

The utility model discloses a kind of multifunctional track inspection devices, it is related to track inspection technical field, the multifunctional track inspection device includes electric mobile base, the upper surface of the electric mobile base is provided with shell, the outer wall of the electric mobile base close to shell is fixedly connected with mounting rod by bolt, the end of the mounting rod close to shell is fixedly connected three-dimensional laser scanner by bolt.The utility model is through three view camera, three-dimensional laser scanner, vibration mechanism and dynamic detection mechanism cooperation, reached the effect that detection object is diversified, detection range is wider, so that device can simultaneously knock detection to rail and its connecting component (such as bolt), break through the limitation that existing technology is more concentrated in single component detection, realize the multi-target collaborative detection to track system key component, improve the comprehensiveness and systematicness of track overall health assessment.

Description

Technical Field

[0001] This utility model relates to the field of track inspection technology, specifically a multifunctional track inspection device. Background Technology

[0002] In the railway transportation sector, track safety is directly related to the stability of train operation and the safety of passengers' lives and property. The integrity of rails and their connecting components (such as bolts) is crucial for maintaining the normal function of the track. However, due to factors such as long-term train operation and environmental changes, rails and bolts may suffer damage, such as cracks, wear, loosening, or breakage. Therefore, timely and accurate detection of these damages is of great significance for preventing accidents and ensuring railway transportation safety. However, existing inspection devices are limited to single-component inspections and are difficult to perform high-frequency, real-time monitoring.

[0003] For example, a multi-functional track inspection vehicle described in the patent with authorization announcement number CN211519496U includes a rotating mechanism, a towing assist device, and an on-board track detection device. The towing mechanism drives the on-board track detection device to move on the track, and the on-board track detection device detects the track during the movement. However, when detecting the track, the detection device is limited to a single component and is difficult to perform high-frequency, real-time monitoring.

[0004] For example, a city rail inspection vehicle described in patent CN222845304U includes an inspection vehicle body, an inspection camera, a rotating mechanism, a lifting mechanism, and an adjustment mechanism. Through the coordinated arrangement of the adjustment mechanism, rotating mechanism, and lifting mechanism, the inspection camera can be moved to a suitable position and adjusted to a suitable camera angle using the adjustment mechanism, then raised and lowered to a suitable height using the lifting mechanism, and finally rotated to a suitable inspection angle using the rotating mechanism. Both horizontal and vertical track details can be clearly captured. However, it only scans and records images of the track surface and cannot determine the tightness of parts on the track, resulting in certain deviations in its detection data, making it unusable and reducing the practicality of the device.

[0005] Based on this, a multifunctional track inspection device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a multifunctional track inspection device to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multifunctional track inspection device includes an electric mobile base, an outer shell on the upper surface of the electric mobile base, a mounting rod fixedly connected to the outer wall of the electric mobile base near the outer shell by bolts, a three-dimensional laser scanner fixedly connected to one end of the mounting rod near the outer shell by bolts, vibration mechanisms symmetrically arranged on the outer wall of the electric mobile base, an adjustment mechanism arranged on the upper surface of the electric mobile base away from the mounting rod, and a dynamic detection mechanism arranged on the top of the adjustment mechanism.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] Preferably, the vibration mechanism includes an electric actuator and a vibration sensor, the vibration sensor being fixed to the outer wall of the electrically movable base for collecting track vibration signals.

[0011] Preferably, the outer wall of the electric actuator is fixedly connected to the outer wall of the electric moving base, a force feedback sensor is fixedly connected to the output end of the electric actuator, and an acoustic sensor is fixedly connected to the outer wall of the electric actuator.

[0012] Preferably, the adjustment mechanism includes an electric slide rail, the bottom end of which is fixedly connected to the upper surface of the electric moving base, and a driving slider is provided on the electric slide rail, with a mechanical arm fixedly connected to the top end of the driving slider.

[0013] Preferably, the dynamic detection mechanism includes a mounting plate, the bottom end of which is fixedly connected to the top end of the robotic arm, and an infrared camera is fixedly connected to the upper surface of the mounting plate.

[0014] Preferably, a fixing plate is connected to the upper surface of the mounting plate away from the infrared camera by a pin bolt, and a connecting plate is sleeved on the outer wall of the fixing plate near the pin bolt. A rotary motor is fixedly connected to the upper surface of the fixing plate, a connecting frame is fixedly connected to the output end of the rotary motor, and a visible light camera is fixedly connected to the top of the connecting frame.

[0015] Preferably, the sidewall of the outer shell is provided with heat dissipation holes, and its inner cavity is divided into a sensor compartment, a control compartment and a power supply compartment.

[0016] Preferably, the electric movable base is symmetrically equipped with three-view cameras near the outer wall of the electric slide rail. The three-view cameras consist of three industrial cameras arranged in a row, fixed to the bottom of the sensor compartment at angles of 30° downward, 90° side, and 45° downward, respectively, with the lens and the track fastener maintained at a distance of 20cm.

[0017] Preferably, the robotic arm has a six-degree-of-freedom structure and a maximum extension radius of 1.2m.

[0018] Preferably, the outer wall of the pin bolt is fitted with an elastic element, which is a compression spring. One end of the elastic element contacts the outer wall of the fixing plate, and the other end contacts the outer wall of the connecting plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model achieves the effect of diversified detection objects and wider detection range by combining a three-view camera, a three-dimensional laser scanner, a vibration mechanism and a dynamic detection mechanism. It enables the device to simultaneously perform impact detection on rails and their connecting components (such as bolts), breaking through the limitations of existing technologies that focus on the detection of single components. It realizes multi-target collaborative detection of key components of the track system and improves the comprehensiveness and systematicness of the overall health assessment of the track.

[0021] 2. This utility model achieves high-frequency, automated, and real-time detection through a three-view camera, a 3D laser scanner, and a dynamic detection mechanism. By performing a full-circle scan every 50 meters using the 3D laser scanner, the subsequent movement route of the device can be determined and planned. Then, in conjunction with the three-view camera and the dynamic detection mechanism, unattended automatic inspection operations can be realized. This enables the device to have functions such as timed inspection, anomaly triggering, and autonomous path planning, supporting high-frequency and high-efficiency track status monitoring and enhancing the early detection and response capabilities of faults. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the three-view camera and adjustment mechanism of this utility model.

[0024] Figure 3 This is a schematic diagram of the vibration mechanism of this utility model.

[0025] Figure 4 This is a schematic diagram of the dynamic detection mechanism of this utility model.

[0026] Figure reference numerals: 1. Electric moving base; 11. Housing; 12. Three-view camera; 13. Mounting rod; 14. 3D laser scanner; 2. Vibration mechanism; 21. Electric actuator; 22. Force feedback sensor; 23. Acoustic sensor; 24. Vibration sensor; 3. Adjustment mechanism; 31. Electric slide rail; 32. Driven slider; 33. Robotic arm; 4. Dynamic detection mechanism; 41. Mounting plate; 42. Infrared camera; 43. Fixing plate; 44. Connecting plate; 45. Elastic element; 46. Rotary motor; 47. Connecting frame; 48. Visible light camera. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, such as Figures 1-4 As shown, a multifunctional track inspection device includes an electric mobile base 1, an outer shell 11 on the upper surface of the electric mobile base 1, a mounting rod 13 fixedly connected to the outer wall of the electric mobile base 1 near the outer shell 11 by bolts, a three-dimensional laser scanner 14 fixedly connected to one end of the mounting rod 13 near the outer shell 11 by bolts, a vibration mechanism 2 symmetrically arranged on the outer wall of the electric mobile base 1, an adjustment mechanism 3 arranged on the upper surface of the electric mobile base 1 away from the mounting rod 13, and a dynamic detection mechanism 4 arranged on the top of the adjustment mechanism 3.

[0029] In this embodiment, the position of the dynamic detection mechanism 4 is adjusted by the adjustment mechanism 3. Then, the three-view camera 12, together with the vibration mechanism 2 and the dynamic detection mechanism 4, can perform comprehensive detection of the rail, forming a closed-loop detection system from precise tapping and multi-dimensional signal acquisition to intelligent analysis.

[0030] In an optional embodiment, such as Figure 2 and Figure 3 As shown, the vibration mechanism 2 includes an electric actuator 21 and a vibration sensor 24. The vibration sensor 24 is fixed to the outer wall of the electric moving base 1 and is used to collect track vibration signals. The outer wall of the electric actuator 21 is fixedly connected to the outer wall of the electric moving base 1. A force feedback sensor 22 is fixedly connected to the output end of the electric actuator 21. An acoustic sensor 23 is fixedly connected to the outer wall of the electric actuator 21. The electric actuator 21 drives the striking head to strike the track. The response signal generated by the striking is synchronously collected by a multi-modal sensor array including the acoustic sensor 23, the vibration sensor 24, and the force feedback sensor 22. The high-sensitivity technology captures weak signals, and the sensor spatial distribution design improves the comprehensiveness of signal acquisition. The collected real-time data is dynamically processed by an edge computing device to realize the detection of rail fasteners.

[0031] In an optional embodiment, such as Figure 2 As shown, the adjustment mechanism 3 includes an electric slide rail 31. The bottom end of the electric slide rail 31 is fixedly connected to the upper surface of the electric moving base 1. A driving slider 32 is provided on the electric slide rail 31. A mechanical arm 33 is fixedly connected to the top end of the driving slider 32. The electric slide rail 31 causes the driving slider 32 to drive the mechanical arm 33 to move laterally. The mechanical arm 33 can drive the mounting plate 41 to move at multiple angles, thereby adjusting the position of the infrared camera 42 and the visible light camera 48.

[0032] In an optional embodiment, such as Figure 2 and Figure 4As shown, the dynamic detection mechanism 4 includes a mounting plate 41. The bottom end of the mounting plate 41 is fixedly connected to the top end of the robotic arm 33. An infrared camera 42 is fixedly connected to the upper surface of the mounting plate 41. A fixing plate 43 is connected to the upper surface of the mounting plate 41 away from the infrared camera 42 by a pin bolt. A connecting plate 44 is sleeved on the outer wall of the fixing plate 43 near the pin bolt. A rotary motor 46 is fixedly connected to the upper surface of the fixing plate 43. A connecting frame 47 is fixedly connected to the output end of the rotary motor 46. A visible light camera 48 is fixedly connected to the top of the connecting frame 47. The rotary motor 46 drives the visible light camera 48 to rotate, thereby changing the orientation of the visible light camera 48. After adjusting to a suitable position, the robotic arm 33 and the rotary motor 46 can be turned off. Then, the device moves on the track at a uniform speed of 0.5-2 m / s. During the movement, the visible light camera 48 captures a global visible light image of the track surface and sleepers. At the same time, the infrared camera 42 captures the temperature distribution data of the track contact surface, fasteners and ballast in real time.

[0033] In an optional embodiment, such as Figure 2 As shown, the side wall of the housing 11 is provided with heat dissipation holes, and its internal cavity is divided into a sensor compartment, a control compartment and a power supply compartment. Through the heat dissipation holes, the components inside the housing 11 can be prevented from overheating during operation.

[0034] In an optional embodiment, such as Figure 2 As shown, a three-view camera 12 is symmetrically arranged on the outer wall of the electric movable base 1 near the electric slide rail 31. The three-view camera 12 consists of three industrial cameras arranged and fixed to the bottom of the sensor compartment at angles of 30° downward, 90° side, and 45° downward respectively. The distance between the lens and the track fastener is 20cm, so that the three-view camera 12 can capture the field of view of the fastener on the rail more comprehensively and make the detection results more accurate.

[0035] In an optional embodiment, such as Figure 2 As shown, the robotic arm 33 has a six-degree-of-freedom structure and a maximum extension radius of 1.2m, which increases the adjustable range of the robotic arm 33 and reduces the field of view of the infrared camera 42 and the visible light camera 48.

[0036] In an optional embodiment, such as Figure 2 and Figure 4 As shown, the outer wall of the pin bolt is fitted with an elastic element 45, which is a compression spring. One end of the elastic element 45 contacts the outer wall of the fixing plate 43, and the other end contacts the outer wall of the connecting plate 44. The elastic element 45 provides a guarantee for the connection stability between the fixing plate 43 and the connecting plate 44, and avoids excessive deviation of the rotary motor 46 when shaking.

[0037] The above embodiment discloses a multifunctional track inspection device. When inspecting the track, the device is moved onto the track, and the wheels of the electric movable base 1 contact the track. Then, the positions of the infrared camera 42 and the visible light camera 48 are adjusted as needed. The electric slide rail 31 drives the slider 32 to move the robotic arm 33 laterally. The robotic arm 33 can move the mounting plate 41 at multiple angles to adjust the positions of the infrared camera 42 and the visible light camera 48. Simultaneously, the rotary motor 46 drives the visible light camera 48 to rotate, changing its orientation. Once the appropriate position is reached, the robotic arm 33 and the rotary motor 46 are turned off. The device then moves along the track at a constant speed of 0.5-2 m / s. During this movement, the visible light camera 48 captures a global visible light image of the track surface and sleepers, while the infrared camera 42 captures real-time images of the track contact surface, fasteners, and ballast. Temperature distribution data is collected, and the track fasteners are photographed by the three-view camera 12. When the fasteners enter the field of view, the three cameras are simultaneously activated for millisecond-level exposure. The 3D laser scanner 14 performs a full-circumference scan every 50 meters. During the movement, the electric actuator 21 drives the striking head to strike the track. The response signal generated by the striking is synchronously collected by the multi-modal sensor array (including acoustic sensor 23, vibration sensor 24, and force feedback sensor 22). Weak signals are captured by high-sensitivity technology, and the comprehensiveness of signal acquisition is improved by combining the spatial distribution design of the sensors. The real-time data collected is dynamically processed by the edge computing device. In summary, the position of the dynamic detection mechanism 4 is adjusted by the adjustment mechanism 3. Then, the three-view camera 12, together with the vibration mechanism 2 and the dynamic detection mechanism 4, can comprehensively detect the rail, forming a closed-loop detection system from precise striking, multi-dimensional signal acquisition to intelligent analysis.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multifunctional track inspection device, comprising an electrically movable base (1), wherein the upper surface of the electrically movable base (1) is provided with a housing (11), characterized in that, The electric mobile base (1) is fixedly connected to the outer wall of the outer shell (11) by bolts with a mounting rod (13). The end of the mounting rod (13) near the outer shell (11) is fixedly connected to a three-dimensional laser scanner (14) by bolts. The outer wall of the electric mobile base (1) is symmetrically provided with vibration mechanisms (2). The upper surface of the electric mobile base (1) away from the mounting rod (13) is provided with an adjustment mechanism (3). The top of the adjustment mechanism (3) is provided with a dynamic detection mechanism (4).

2. The multi-functional track inspection device according to claim 1, wherein, The vibration mechanism (2) includes an electric push rod (21) and a vibration sensor (24). The vibration sensor (24) is fixed to the outer wall of the electric moving base (1) and is used to collect track vibration signals.

3. The multi-functional track inspection device according to claim 2, wherein, The outer wall of the electric push rod (21) is fixedly connected to the outer wall of the electric moving base (1), and a force feedback sensor (22) is fixedly connected to the output end of the electric push rod (21). An acoustic sensor (23) is fixedly connected to the outer wall of the electric push rod (21).

4. The multifunctional track inspection device according to claim 1, characterized in that, The adjustment mechanism (3) includes an electric slide rail (31), the bottom end of which is fixedly connected to the upper surface of the electric moving base (1), and a driving slider (32) is provided on the electric slide rail (31), and a mechanical arm (33) is fixedly connected to the top of the driving slider (32).

5. The multi-functional track inspection device according to claim 1, wherein, The dynamic detection mechanism (4) includes a mounting plate (41), the bottom end of which is fixedly connected to the top end of the robotic arm (33), and an infrared camera (42) is fixedly connected to the upper surface of the mounting plate (41).

6. The multi-functional track inspection device according to claim 5, wherein, The mounting plate (41) is connected to a fixing plate (43) on its upper surface away from the infrared camera (42) by a pin bolt. A connecting plate (44) is fitted on the outer wall of the fixing plate (43) near the pin bolt. A rotary motor (46) is fixedly connected to the upper surface of the fixing plate (43). A connecting frame (47) is fixedly connected to the output end of the rotary motor (46). A visible light camera (48) is fixedly connected to the top of the connecting frame (47).

7. The multi-functional track inspection device according to claim 1, wherein, The outer shell (11) has heat dissipation holes on its side wall, and its inner cavity is divided into a sensor compartment, a control compartment and a power supply compartment.

8. The multi-functional track inspection device according to claim 1, wherein, The electric mobile base (1) is symmetrically equipped with three-view cameras (12) near the outer wall of the electric slide rail (31). The three-view cameras (12) consist of three industrial cameras arranged together and fixed to the bottom of the sensor compartment at angles of 30° from above, 90° from the side, and 45° from the bottom. The distance between the lens and the track fastener is 20cm.

9. A multifunctional track inspection device according to claim 4, characterized in that, The robotic arm (33) is a six-degree-of-freedom structure with a maximum extension radius of 1.2m.

10. A multifunctional track inspection device according to claim 6, characterized in that, The outer wall of the pin bolt is fitted with an elastic element (45), and the elastic element (45) is a compression spring. One end of the elastic element (45) is in contact with the outer wall of the fixing plate (43), and the other end is in contact with the outer wall of the connecting plate (44).

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