Railway steel rail fatigue crack detection device

Abstract

The utility model discloses a railway steel rail fatigue crack detection device which comprises a bottom plate, a plurality of supporting plates are fixedly installed on the bottom wall of the bottom plate, a transmission shaft is rotatably installed between the two supporting plates on the same side, and two guide wheels are fixedly installed on the outer walls of the two transmission shafts respectively. A motor connected with one transmission shaft is fixedly installed on the bottom wall of the bottom plate through a connecting mechanism, two connecting frames are fixedly connected to the upper end face of the bottom plate through a connecting mechanism, and sweeping rollers are rotationally installed in the two connecting frames. According to the steel rail cleaning device, the transmission wheels, the transmission plates, the cleaning rollers and other assemblies are arranged, when the bottom plate moves, the two guide wheels can drive the cleaning rollers to rotate through the two transmission wheels connected with the transmission plates on the same side, and therefore dust on the upper end faces of the two steel rails can be cleaned through the two cleaning rollers; therefore, dust can be prevented from forming a layer of covering to interfere ultrasonic propagation, and the defect that a probe cannot accurately detect the inside of a steel rail is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rail inspection technology, and in particular to a fatigue crack detection device for railway rails. Background Technology

[0002] Steel rails are the main components of railway tracks, used to guide the wheels of locomotives and rolling stock, bear the enormous pressure of the wheels, and transmit it to the sleepers.

[0003] Fatigue cracks in railway tracks are a common form of damage, primarily affecting the comfort and safety of railway operation. To ensure safe train operation, monitoring of these cracks is necessary. In existing technologies, most detection devices use ultrasonic waves to inspect the rails. However, the friction between the wheels and the rails generates metal debris and dust, which adhere to the rail surface, forming a layer of dust. This dust layer then interferes with the propagation of ultrasonic waves, preventing the flaw detection instrument from accurately detecting internal defects in the rails, thus compromising the safe operation of trains. Therefore, a new railway rail fatigue crack detection device needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fatigue crack detection device for railway rails.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fatigue crack detection device for railway rails includes a base plate. Multiple support plates are fixedly installed on the bottom wall of the base plate. A drive shaft is rotatably installed between two support plates on the same side. Two guide wheels are fixedly installed on the outer walls of both drive shafts. A motor connected to one of the drive shafts is fixedly installed on the bottom wall of the base plate via a connecting mechanism. Two connecting frames are fixedly connected to the upper surface of the base plate via a connecting mechanism. Cleaning rollers are rotatably installed inside each of the two connecting frames. Drive wheels are fixedly installed at both ends of the other drive shaft and on the outer walls of the rotating shafts of the two cleaning rollers. A connecting rod is fixedly installed on the outer wall of each drive wheel. The outer walls of two adjacent connecting rods are jointly fixedly installed on the drive plate. A detector is fixedly installed on the upper surface of the base plate. A support frame is fixedly installed on the upper surface of the base plate. A mounting plate is fixedly connected to the inner wall of the support frame via a lifting mechanism. Two probes electrically connected to the detector are fixedly installed on the bottom wall of the mounting plate. A lifting opening for cooperating with the two probes is opened on the upper surface of the base plate. Two handrails are fixedly installed on the upper surface of the base plate.

[0007] Preferably, the connecting mechanism includes a connecting plate fixedly installed on the bottom wall of the base plate, and the motor is fixedly installed on the outer wall of the connecting plate.

[0008] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the upper surface of the base plate, and the end of the connecting rod is fixedly connected to the upper surface of the connecting frame.

[0009] Preferably, the lifting mechanism includes an electric actuator fixedly installed on the inner wall of the support frame, and the telescopic end of the electric actuator is fixedly connected to the upper surface of the mounting plate.

[0010] Preferably, the upper surface of the base plate is slidably mounted on the battery via a connecting frame, and the battery is electrically connected to the motor, the detector, and the electric actuator.

[0011] Preferably, a photovoltaic panel is fixedly installed on the upper surface of the base plate by two support rods, the photovoltaic panel is electrically connected to the battery, and the photovoltaic panel is inclined.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as transmission wheels, transmission plates, and cleaning rollers, when the base plate moves, the two guide wheels can drive the cleaning rollers to rotate through the two transmission wheels connected to the transmission plate on the same side. This allows the two cleaning rollers to clean the dust on the upper surface of the two rails, thereby preventing the dust from forming a layer that interferes with the propagation of ultrasonic waves and avoiding the probe being unable to accurately detect defects inside the rails.

[0014] 2. By setting up components such as support rods, photovoltaic panels, and batteries, the photovoltaic panels can be installed at an angle with the cooperation of two support rods. The photovoltaic panels can convert light energy into electrical energy to charge the batteries, thereby increasing the convenience of using electrical energy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fatigue crack detection device for railway rails proposed in this utility model;

[0016] Figure 2 This is a top view schematic diagram of a fatigue crack detection device for railway rails proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of a fatigue crack detection device for railway rails proposed in this utility model;

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Base plate, 2. Support plate, 3. Drive shaft, 4. Guide wheel, 5. Connecting plate, 6. Motor, 7. Connecting rod, 8. Connecting frame, 9. Cleaning roller, 10. Drive wheel, 11. Connecting rod, 12. Drive plate, 13. Detector, 14. Support frame, 15. Electric push rod, 16. Mounting plate, 17. Probe, 18. Connecting frame, 19. Battery, 20. Support rod, 21. Photovoltaic panel, 22. Handrail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A fatigue crack detection device for railway rails includes a base plate 1. Multiple support plates 2 are fixedly installed on the bottom wall of the base plate 1. A drive shaft 3 is rotatably installed between two support plates 2 on the same side. Two guide wheels 4 are fixedly installed on the outer walls of both drive shafts 3. Each guide wheel 4 is made of vulcanized rubber. During the vulcanization process, a strong cross-linked structure is formed between rubber molecules. This structure not only enhances the wear resistance of the rubber but also allows its surface to form a certain coefficient of friction, thereby improving the anti-slip effect and preventing slippage during movement. A motor 6, connected to one of the drive shafts 3, is fixedly installed on the bottom wall of the base plate 1 via a connecting mechanism. The connecting mechanism includes a connecting plate 5 fixedly installed on the bottom wall of the base plate 1, and the motor 6 is fixedly installed on the outer wall of the connecting plate 5. Two connecting frames 8 are fixedly connected to the upper surface of the base plate 1 via a connecting mechanism. The connecting mechanism includes a connecting rod 7 fixedly installed on the upper surface of the base plate 1, and the end of the connecting rod 7 is fixedly connected to the upper surface of the connecting frame 8.

[0023] Cleaning rollers 9 are rotatably installed inside both connecting frames 8. Transmission wheels 10 are fixedly installed at both ends of another transmission shaft 3 and on the outer walls of the rotating shafts of the two cleaning rollers 9. A connecting rod 11 is fixedly installed on the outer wall of each transmission wheel 10. The outer walls of two adjacent connecting rods 11 are fixedly installed on the transmission plate 12. A detector 13 is fixedly installed on the upper surface of the base plate 1. A support frame 14 is fixedly installed on the upper surface of the base plate 1. An installation plate 16 is fixedly connected to the inner wall of the support frame 14 through a lifting mechanism. The lifting mechanism includes an electric push rod 15 fixedly installed on the inner wall of the support frame 14. The telescopic end of the electric push rod 15 is fixedly connected to the upper surface of the installation plate 16.

[0024] Two probes 17, electrically connected to the detector 13, are fixedly installed on the bottom wall of the mounting plate 16. The upper end of the base plate 1 is slidably mounted on the battery 19 through the connecting frame 18. The battery 19 is electrically connected to the motor 6, the detector 13, and the electric push rod 15. The upper end of the base plate 1 has a lifting opening that cooperates with the two probes 17. A photovoltaic panel 21 is fixedly installed on the upper end of the base plate 1 through two support rods 20. The photovoltaic panel 21 is electrically connected to the battery 19. The photovoltaic panel 21 is inclined, which allows it to be better exposed to sunlight, thereby improving the power generation effect. Two support rods 22 are fixedly installed on the upper end of the base plate 1.

[0025] When this utility model is in use, multiple guide wheels 4 can be placed on the upper surfaces of two steel rails. During detection, the battery 19 can conveniently power the motor 6, detector 13, and electric push rod 15, and the photovoltaic panel 21 can charge the battery 19, thereby increasing the convenience of using electrical energy. During detection, the base plate 1 can be supported by the cooperation of two support rods 22. Then, the motor 6 can drive one of the drive shafts 3 to rotate. One of the drive shafts 3 can drive the two guide wheels 4 on its outer wall to rotate on the upper surfaces of the two steel rails, thereby realizing the automatic movement of the base plate 1. Then, the electric push rod 15 can drive the two probes 17 to move downward in the moving opening through the mounting plate 16, so that the two probes 17 are close to the upper surfaces of the two steel rails respectively.

[0026] Meanwhile, the other two guide wheels 4 can drive the cleaning rollers 9 to rotate through the two transmission wheels 10 connected to the transmission plate 12 on the same side. This allows the two cleaning rollers 9 to clean the dust on the upper surface of the two rails, thus preventing the dust from forming a layer that interferes with the propagation of ultrasonic waves and preventing the probe 17 from failing to accurately detect defects inside the rails. As the base plate 1 moves, the detector 13 can then use the two probes 17 to detect the two rails.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A railway rail fatigue crack detection device comprising a base plate (1), characterized in that, The bottom wall of the base plate (1) is fixedly installed with multiple support plates (2). A drive shaft (3) is rotatably installed between two support plates (2) on the same side. Two guide wheels (4) are fixedly installed on the outer walls of the two drive shafts (3). A motor (6) connected to one of the drive shafts (3) is fixedly installed on the bottom wall of the base plate (1) through a connecting mechanism. Two connecting frames (8) are fixedly connected to the upper end face of the base plate (1) through a connecting mechanism. Cleaning rollers (9) are rotatably installed inside the two connecting frames (8). Drive wheels (10) are fixedly installed on the outer walls of the rotating shafts of the other drive shaft (3) and the two cleaning rollers (9). Each drive... A connecting rod (11) is fixedly installed on the outer wall of the wheel (10). The outer walls of two adjacent connecting rods (11) are fixedly installed on the transmission plate (12). A detector (13) is fixedly installed on the upper surface of the base plate (1). A support frame (14) is fixedly installed on the upper surface of the base plate (1). An installation plate (16) is fixedly connected to the inner wall of the support frame (14) through a lifting mechanism. Two probes (17) electrically connected to the detector (13) are fixedly installed on the bottom wall of the installation plate (16). A lifting opening is opened on the upper surface of the base plate (1) to cooperate with the two probes (17). Two handrails (22) are fixedly installed on the upper surface of the base plate (1).

2. A railway rail fatigue crack detection device according to claim 1, wherein The connecting mechanism includes a connecting plate (5) fixedly installed on the bottom wall of the base plate (1), and the motor (6) fixedly installed on the outer wall of the connecting plate (5).

3. A railway rail fatigue crack detection apparatus according to claim 2, wherein The connecting mechanism includes a connecting rod (7) fixedly installed on the upper surface of the base plate (1), and the end of the connecting rod (7) is fixedly connected to the upper surface of the connecting frame (8).

4. The fatigue crack detection device for railway rails according to claim 3, characterized in that, The lifting mechanism includes an electric push rod (15) fixedly installed on the inner wall of the support frame (14), and the telescopic end of the electric push rod (15) is fixedly connected to the upper end face of the mounting plate (16).

5. A railway rail fatigue crack detection apparatus according to claim 4, wherein The upper surface of the base plate (1) is slidably mounted on the battery (19) via the connecting frame (18). The battery (19) is electrically connected to the motor (6), the detector (13), and the electric push rod (15).

6. A railway rail fatigue crack detection apparatus according to claim 5, wherein A photovoltaic panel (21) is fixedly installed on the upper surface of the base plate (1) by two support rods (20). The photovoltaic panel (21) is electrically connected to the storage battery (19). The photovoltaic panel (21) is inclined.

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