Ultrasonic flaw detection vehicle for large steel rail of heavy haul railway
By designing a drive motor and pusher plate structure on the ultrasonic flaw detection vehicle to push away stones from the rail surface, the problem of bumps and derailment caused by stones in the flaw detection vehicle was solved, the stable operation and detection accuracy of the flaw detection vehicle were achieved, and the track inspection and maintenance process was simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
When existing ultrasonic flaw detection vehicles perform flaw detection tasks on railway tracks, the stones and other debris scattered on the track surface become a major hidden danger affecting the normal operation of the flaw detection vehicles, causing the flaw detection vehicles to bump, deviate from the track, or even derail, affecting the accuracy and safety of the detection.
A heavy-duty railway large-scale ultrasonic flaw detection vehicle for rails was designed. It uses a drive motor to drive a connecting rod and gear structure, a push plate structure to push away stones on the rail surface, and a marking mechanism to mark the rail surface, ensuring the stable operation of the flaw detection vehicle.
This effectively avoids the problems of the flaw detection vehicle being bumped and derailed due to stones, improves the accuracy and safety of flaw detection operations, and simplifies subsequent track inspection and maintenance work.
Smart Images
Figure CN224066728U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ultrasonic flaw detection technology for rails, specifically relating to a large ultrasonic flaw detection vehicle for heavy-duty railway rails. Background Technology
[0002] The heavy-haul railway large-scale ultrasonic rail flaw detection vehicle is a large-scale rail inspection device based on the principle of ultrasonic waves. It can perform real-time, high-speed, non-invasive flaw detection on rails while the train is in motion. The technology relies on the principle of ultrasonic waves and utilizes a high-speed onboard flaw detection system installed on railway locomotives, track cars, and engineering vehicles to achieve real-time, high-speed, and non-invasive flaw detection of rails during vehicle operation. This technology can instantly detect internal cracks and other damage in railway rails, providing a solid guarantee for the safe operation of railway lines.
[0003] When performing flaw detection tasks, the flaw detection vehicle relies on wheeled probes mounted on its undercarriage to contact the rails. These probes emit ultrasonic signals into the rails and receive signals reflected back from within, thus completing the flaw detection. When the vehicle is traveling at high speed, the wheeled probes continuously roll along the rails and must always precisely track the rails, remaining on the rail's centerline. To achieve this, a highly efficient and precise servo control system, along with dedicated control software, is required to ensure that the wheeled probes maintain the correct spatial position and apply appropriate pressure to the rails during high-speed operation.
[0004] Existing ultrasonic flaw detection vehicles often face numerous complex and unpredictable road conditions when performing flaw detection tasks on railway tracks. In some railway sections where maintenance is not timely or the environment is relatively harsh, there may be scattered stones and other debris on the track surface, which could potentially become a major hidden danger affecting the normal operation of the flaw detection vehicle.
[0005] Specifically, when the wheeled probe of the flaw detection vehicle accidentally runs over these stones during its journey, the irregular shape and hard texture of the stones can easily cause the flaw detection vehicle to shake violently. This shaking not only affects the stability of the flaw detection vehicle, making it impossible to carry out flaw detection operations accurately and smoothly, thus reducing the accuracy and efficiency of flaw detection; but in extreme cases, the powerful impact force generated by the shaking may also cause the flaw detection vehicle to deviate from its normal driving trajectory, or even directly cause the flaw detection vehicle to derail. Derailment of the flaw detection vehicle will not only cause serious damage to the flaw detection vehicle itself, increase maintenance costs and equipment downtime, but also cause a series of serious safety problems. Utility Model Content
[0006] The purpose of this utility model is to provide a heavy-duty railway large-scale ultrasonic flaw detection vehicle, which aims to solve the problem that when existing ultrasonic flaw detection vehicles perform flaw detection tasks on railway tracks, scattered stones and other debris will appear on the track surface, which may become a major hidden danger affecting the normal operation of the flaw detection vehicle.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty railway large-scale ultrasonic flaw detection vehicle, comprising a flaw detection vehicle body, a drive motor installed inside the flaw detection vehicle body, a first connecting rod connected to the output end of the drive motor, a first push plate connected to the end of the first connecting rod, a drive gear connected to the surface of the first connecting rod, a second connecting rod penetrating through the surface of the flaw detection vehicle body, a second push plate connected to the end of the second connecting rod, a driven gear connected to the surface of the second connecting rod near the drive gear, the first connecting rod and the second connecting rod respectively mounted inside the flaw detection vehicle body via bearings, and a marking mechanism installed on one side of the flaw detection vehicle body.
[0008] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway large steel rails of this utility model, the first connecting rod forms a rotating structure with the main body of the flaw detection vehicle through a bearing.
[0009] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway large steel rails of this utility model, the second connecting rod forms a rotating structure with the main body of the flaw detection vehicle through a bearing.
[0010] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway large steel rails of this utility model, the driving gear and the driven gear form a meshing structure.
[0011] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway rails according to this utility model, the marking mechanism includes a telescopic rod, an inkwell, a sponge pad, a convex thread, and a cap. The telescopic end of the telescopic rod is connected to the inkwell, the inner wall of the inkwell is connected to the sponge pad, the outer surface of the inkwell is connected to the convex thread, the surface of the convex thread is fitted with a cap, and the inner wall of the cap is connected to a rubber ring.
[0012] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway large steel rails of this utility model, the inkwell and the telescopic rod form a telescopic structure.
[0013] As a preferred embodiment of the ultrasonic flaw detection vehicle for heavy-duty railway large steel rails of this utility model, the cap and the protruding thread are connected by a thread.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, when the drive motor is running, it can drive the first push plate to rotate towards the inner wall of the rail via the first connecting rod. The first connecting rod drives the second connecting rod to rotate towards the inner wall of the other rail via the driving gear and the driven gear. When the first push plate and the second push plate move to the surface of the two rails respectively, the flaw detection vehicle body can push away the stones on the rail surface through the first push plate and the second push plate, thereby avoiding damage to the flaw detection vehicle body caused by encountering stones, or even derailment of the flaw detection vehicle body causing injury to the staff.
[0016] In this invention, the cap can be removed by rotating it on the surface of the convex thread. When the telescopic rod is running, it can drive the ink cartridge downward, which in turn drives the sponge pad downward. This allows the ink soaked inside the sponge pad to adhere to the surface of the rail, thus marking the surface of the rail and facilitating subsequent inspection and maintenance of the rail. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of this utility model from below;
[0021] Figure 4 This is a schematic diagram of the push plate drive structure of this utility model;
[0022] Figure 5 This is a cross-sectional view of the connection structure between the ink cartridge and the cap of this utility model;
[0023] Figure 6 This is an exploded view of the marking mechanism of this utility model.
[0024] In the diagram: 1. Main body of the flaw detection vehicle; 2. Drive motor; 3. First connecting rod; 4. First push plate; 5. Drive gear; 6. Second connecting rod; 7. Second push plate; 8. Driven gear; 9. Bearing; 10. Marking mechanism; 1001. Telescopic rod; 1002. Inkwell; 1003. Sponge pad; 1004. Convex thread; 1005. Cap; 1006. Rubber ring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-6 This utility model provides the following technical solution: a heavy-duty railway large-scale ultrasonic flaw detection vehicle, including a flaw detection vehicle body 1, a drive motor 2 installed inside the flaw detection vehicle body 1, a first connecting rod 3 connected to the output end of the drive motor 2, a first push plate 4 connected to the end of the first connecting rod 3, a drive gear 5 connected to the surface of the first connecting rod 3, a second connecting rod 6 penetrating through the surface of the flaw detection vehicle body 1, a second push plate 7 connected to the end of the second connecting rod 6, a driven gear 8 connected to the surface of the second connecting rod 6 near the drive gear 5, the first connecting rod 3 and the second connecting rod 6 respectively installed inside the flaw detection vehicle body 1 through bearings 9, and a marking mechanism 10 installed on one side of the flaw detection vehicle body 1.
[0027] When in use, the flaw detection vehicle has its wheels mounted on the surface of the rail. Then, the power mechanism of the flaw detection vehicle body 1 drives the wheels to travel on the surface of the rail. During the travel of the flaw detection vehicle body 1, the wheel-type probes installed on the bottom of the vehicle contact the rail. These probes emit ultrasonic signals into the rail and receive the signals reflected back from the inside of the rail, thereby completing the flaw detection.
[0028] Preferably, the first connecting rod 3 forms a rotating structure with the flaw detection vehicle body 1 via the bearing 9, and the second connecting rod 6 forms a rotating structure with the flaw detection vehicle body 1 via the bearing 9.
[0029] In practical use, when the first connecting rod 3 is subjected to force, it can rotate inside the bearing 9. When the first connecting rod 3 rotates, it can drive the first push plate 4. Similarly, when the second connecting rod 6 is subjected to force, it can drive the second push plate 7 to rotate. In this way, the positions of the first push plate 4 and the second push plate 7 can be adjusted.
[0030] Preferably, the driving gear 5 and the driven gear 8 form a meshing structure.
[0031] In practical use, when the first connecting rod 3 rotates, the driving gear 5 can be driven to rotate. When the driving gear 5 rotates, it can drive the driven gear 8 to rotate through the meshing structure. When the driven gear 8 rotates, it can drive the second connecting rod 6 to rotate, thus realizing the linkage between the first connecting rod 3 and the second connecting rod 6.
[0032] Preferably, the marking mechanism 10 includes a telescopic rod 1001, an inkwell 1002, a sponge pad 1003, a threaded part 1004, and a cap 1005. The telescopic end of the telescopic rod 1001 is connected to the inkwell 1002. The inner wall of the inkwell 1002 is connected to the sponge pad 1003. The outer surface of the inkwell 1002 is connected to the threaded part 1004. The surface of the threaded part 1004 is fitted with the cap 1005. The inner wall of the cap 1005 is connected to a rubber ring 1006.
[0033] Preferably, the inkwell 1002 and the telescopic rod 1001 form a telescopic structure.
[0034] In practical use, when the telescopic rod 1001 is running, it can drive the inkwell 1002 to move longitudinally, which can adjust the height of the inkwell 1002.
[0035] Preferably, the cap 1005 and the protruding thread 1004 are connected by a thread.
[0036] In practical use, the cap 1005 can move downwards when it rotates on the surface of the convex thread 1004. When the cap 1005 moves to the outside of the convex thread 1004, the sponge pad 1003 can be exposed, which makes it convenient to mark on the rail surface.
[0037] Working principle: When using this heavy-duty railway large steel rail ultrasonic flaw detection vehicle, the main body 1 of the flaw detection vehicle can first be set up on the surface of the rail. Then, the cap 1005 can be rotated. When the cap 1005 rotates on the surface of the convex thread 1004, it can move downwards, so that the cap 1005 can be removed.
[0038] Next, drive motor 2 can be operated. When drive motor 2 is running, it can drive the first connecting rod 3 to rotate. When the first connecting rod 3 rotates, it can drive the first push plate 4 to rotate towards the inner wall of the rail. At the same time, the rotation of the first connecting rod 3 can drive the drive gear 5 to rotate. When the drive gear 5 rotates, it can drive the second connecting rod 6 to rotate in the opposite direction through the driven gear 8. The reverse rotation of the second connecting rod 6 can drive the second push plate 7 to rotate towards the inner wall of the other rail. When the first push plate 4 and the second push plate 7 move to the surface of the two rails respectively, the flaw detection vehicle body 1 can push away the stones on the rail surface through the first push plate 4 and the second push plate 7.
[0039] When the flaw detection vehicle body 1 detects a risky location, the telescopic rod 1001 can be operated. When the telescopic rod 1001 is running, it can drive the ink cartridge 1002 to move downward. The downward movement of the ink cartridge 1002 can drive the sponge pad 1003 to move downward. In this way, the ink soaked inside the sponge pad 1003 can adhere to the surface of the rail, thereby achieving marking and facilitating subsequent inspection and maintenance operations.
[0040] After use, the cap 1005 can be fitted onto the surface of the threaded 1004 and rotated in the opposite direction. When the threaded 1004 rotates in the opposite direction, the cap 1005 can move towards the inkwell 1002. When the cap 1005 drives the rubber ring 1006 to the surface of the inkwell 1002, the rubber ring 1006 can form a seal between the inkwell 1002 and the cap 1005 to prevent the ink from drying out.
[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A heavy haul railway heavy rail ultrasonic flaw detection vehicle, comprising a flaw detection vehicle body (1), characterized in that: The inside of the flaw detection vehicle body (1) is provided with a driving motor (2), the output end of the driving motor (2) is connected with a first connecting rod (3), the end of the first connecting rod (3) is connected with a first push plate (4), the surface of the first connecting rod (3) is connected with a driving gear (5), the surface of the flaw detection vehicle body (1) is penetrated through a second connecting rod (6), the end of the second connecting rod (6) is connected with a second push plate (7), the surface of the second connecting rod (6) close to the driving gear (5) is connected with a driven gear (8), the first connecting rod (3) and the second connecting rod (6) are respectively installed in the inside of the flaw detection vehicle body (1) through bearings (9), and one side of the flaw detection vehicle body (1) is provided with a marking mechanism (10).
2. The heavy haul railway large rail ultrasonic flaw detection vehicle according to claim 1, characterized in that: The first connecting rod (3) and the flaw detection vehicle body (1) constitute a rotating structure through the bearing (9).
3. The heavy haul railway large rail ultrasonic flaw detection vehicle according to claim 1, characterized in that: The second connecting rod (6) and the flaw detection vehicle body (1) constitute a rotating structure through the bearing (9).
4. The heavy haul railway large rail ultrasonic flaw detection vehicle according to claim 1, characterized in that: The driving gear (5) and the driven gear (8) constitute an engagement structure.
5. The heavy haul railway heavy rail ultrasonic inspection vehicle of claim 1, wherein: The marking mechanism (10) comprises a telescopic rod (1001), an ink shell (1002), a sponge pad (1003), a convex thread (1004) and a cap (1005), the telescopic end of the telescopic rod (1001) is connected with the ink shell (1002), the inner wall of the ink shell (1002) is connected with the sponge pad (1003), the outer surface of the ink shell (1002) is connected with the convex thread (1004), the surface of the convex thread (1004) is sleeved with the cap (1005), and the inner wall of the cap (1005) is connected with a rubber ring (1006).
6. A heavy haul railway heavy rail ultrasonic inspection vehicle as claimed in claim 5 wherein: The ink shell (1002) and the telescopic rod (1001) constitute a telescopic structure.
7. A heavy haul railway heavy rail ultrasonic inspection vehicle as claimed in claim 6 wherein: The cap (1005) and the convex thread (1004) are screw connected.