Railway derailment detection device and method of use

Abstract

The application discloses a railway derailment detection device and a use method, and particularly relates to the technical field of railway derailment detection, and comprises a plurality of reciprocating rotating test mechanisms installed on the top surface of a detection table body and used for calibrating the sensors of a detected system. The test device is driven to rotate by a servo motor. The rotating disc drives the pressure guide rod to move synchronously while rotating. The pressure guide rod slides directionally in the offset groove. The rotating frame and the support frame are deflected and rotated by the rotating shaft. The rotating shaft serves as the rotating center point. One cycle is formed by one rotation of the rotating disc. The rotating disc drives the rotating frame to reciprocate and deflect around the rotating shaft. The longitudinal inclination angle of the side frame of the vehicle bogie is detected. The automatic reciprocating swing of the detection sensor and the sensor of the detected system is realized. Manual operation of the test frame is not needed. The automatic degree of detection is improved.

Description

Technical Field

[0001] This invention relates to the field of railway derailment detection technology, specifically to a railway derailment detection device and its usage method. Background Technology

[0002] The electronically controlled railway freight car derailment detection system uses specialized sensors to detect the longitudinal tilt angle of the bogie side frames. By comparing the detected data with a set threshold in real time, it determines the on-rail status of the corresponding bogie. If the detection system determines that the bogie has derailed, it immediately sends an emergency braking command, thereby triggering the train's basic braking device to implement emergency braking. The traditional derailment braking device consists of a railway freight car automatic derailment brake valve (referred to as the derailment brake valve), ball valves, and pipelines. The derailment brake valve is the core component of the derailment braking device, with one installed at each axle. When the vehicle derails, the brake valve rod is broken, connecting the main brake pipe to the atmosphere, causing the train to brake urgently.

[0003] Traditional derailment braking devices require U-shaped pull rings to be clamped onto the axle during installation. When the vehicle bogie needs to be separated from the car body, the U-shaped pull rings must be removed beforehand, otherwise the automatic brake valve will be damaged. In addition, once the vehicle derails, the derailment brake valve will be damaged, and the parts must be replaced after the vehicle is put back on track, which brings considerable inconvenience to actual work. Summary of the Invention

[0004] The purpose of this invention is to provide a railway derailment detection device and its usage method to solve the problems mentioned in the background art.

[0005] This invention can be achieved through the following technical solution: a railway derailment detection device, comprising several test mechanisms reciprocatingly rotatably mounted on the top surface of a test platform for calibrating sensors of the system under test. Each test mechanism includes two fixed frames with an inverted T-shaped structure fixed on the top surface of the test platform. Each fixed frame includes a support frame and a support base. Two rotating frames are installed between the two fixed frames. Each rotating frame has a strip-shaped offset groove on its surface, and a fan-shaped connecting seat is fixedly installed on the bottom surface of the rotating frame. A test frame for placing a special detection sensor is rotatably mounted above the support frame. The top surface of each rotating frame is fixedly connected to the bottom surface of the test frame. A rotating shaft that rotates and cooperates with the support frame is provided through the top surface of the two connecting seats. A turntable driven by a servo motor is rotatably mounted on the inner wall of one of the support frames. A pressure guide rod that passes horizontally through the two offset grooves is fixedly connected to the outer edge surface of the turntable. The outer surface of the pressure guide rod abuts against the inner wall surface of the offset groove.

[0006] A further technical improvement of the present invention is that: a horizontal guide rail is provided on the bottom surface of the support base, a guide seat is slidably installed inside the guide rail, a transmission plate is fixedly connected to the end of the guide seat, and the transmission plate is located directly below the connecting seat.

[0007] A further technical improvement of the present invention is that: a plurality of tooth blocks I are installed on the bottom surface of the connecting seat, and a plurality of tooth blocks II that mesh with tooth blocks I are installed on the top surface of the transmission plate.

[0008] A further technical improvement of the present invention is that a U-shaped locking seat is installed at the end of the inner wall surface of the support base, and the locking seat is used for the insertion of the transmission plate.

[0009] A further technical improvement of the present invention is that: a placement frame is installed on the top surface of the test frame, a support plate for supporting the sensor of the system under test is installed in the middle of the inner cavity of the placement frame, lifting plates are installed above and below the support plate, and a pressure plate for positioning the dedicated detection sensor and the sensor of the system under test is installed on the bottom surface of the lifting plate.

[0010] A further technical improvement of the present invention is that: a transmission rod is fixedly connected to the surface ends of the two lifting plates; a through slot hole is provided on the surface of the bearing plate for the transmission rod to slide into; a groove hole is provided in the middle of the top surface of the placement frame; a pull rod for lifting the two lifting plates to move synchronously is provided through the inside of the groove hole; and a spring is fixedly connected between the bottom surface of the top lifting plate and the groove surface of the groove hole.

[0011] A further technical improvement of the present invention is that: the side of the placement rack is provided with a signal connection slot for connecting the signal line to the dedicated detection sensor and the sensor of the detection system.

[0012] The present invention also provides a method for using a railway derailment detection device, the method specifically including the following steps:

[0013] Step 1: First, pull the lever upwards. Through the connection of the transmission rod, the lever drives the two lifting plates to move synchronously. Place the special detection sensor and the sensor of the system under test on the top surface of the test frame and the support plate, respectively. The upper and lower pressure plates fix the special detection sensor and the sensor of the system under test.

[0014] Step 2: Drive the turntable to rotate by the servo motor. Under the obstruction of the offset groove, the rotating frame and the support frame will reciprocate and swing, while the test frame moves synchronously to calibrate the sensors of the system under test.

[0015] Step 3: The calibrated sensors of the tested system are installed on the side frame of the vehicle bogie for testing. The on-rail status of the corresponding vehicle bogie side frame is determined by calculating the test data in real time.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A servo motor drives the turntable to rotate, which in turn drives the pressure guide rod to move synchronously. The pressure guide rod slides in an offset groove, while the rotating frame and support frame rotate through a rotating shaft. The rotating shaft serves as the center point of rotation. When the pressure guide rod follows the rotation of the turntable, the rotating frame rotates, causing the rotating frame to rotate. The rotating frame drives the test frame to rotate to one side. When the pressure guide rod continues to rotate with the turntable, the rotating frame drives the test frame to rotate to the other side. One rotation of the turntable is one cycle. The rotation of the turntable drives the rotating frame to reciprocate around the rotating shaft, detecting the longitudinal tilt angle of the side frame of the vehicle bogie. This realizes the automatic reciprocating swing of the detection sensor and the sensor of the tested system, eliminating the need for manual movement of the test frame and improving the automation of the detection.

[0018] 2. By pulling the lever upwards, the lever drives the upper lifting plate, which in turn drives the spring, causing the spring to deform elastically and retract into the groove. With the connection of the transmission rod, the lower lifting plate rises synchronously. At the same time, the pressure plate rises synchronously, facilitating the placement of the dedicated detection sensor and the sensor of the tested system onto the top surface of the support plate and the test frame. Then, the tension on the lever is removed, the spring returns to its original deformation, and the pressure plate presses and fixes the dedicated detection sensor and the sensor of the tested system firmly. After connecting the dedicated detection sensor and the sensor of the tested system, the test is performed. After the test is completed, the sensor of the tested system is installed on the side frame of the vehicle bogie for testing. By calculating the test data in real time, the on-rail status of the corresponding side frame of the vehicle bogie is determined. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the structural connection between the turntable and the rotating frame of the present invention;

[0023] Figure 4 This is a three-dimensional installation structure diagram of the placement rack and test rack of the present invention;

[0024] Figure 5 This is a cross-sectional view of the structure of the placement rack of the present invention.

[0025] In the diagram: 1. Testing platform; 2. Support frame; 3. Guide rail; 4. Guide seat; 5. Clamping seat; 6. Turntable; 7. Rotating frame; 8. Offset groove; 9. Pressure guide rod; 10. Rotating shaft; 11. Connecting seat; 12. Tooth block one; 13. Transmission plate; 14. Tooth block two; 15. Support base; 16. Test frame; 17. Placement frame; 18. Bearing plate; 19. Through slot hole; 20. Transmission rod; 21. Pressure plate; 22. Lifting plate; 23. Pull rod; 24. Groove hole; 25. Spring. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving the intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0027] Please see Figures 1-5As shown, the present invention provides a railway derailment detection device, including a detection platform 1. Several test mechanisms for calibrating sensors of the system under test are rotatably mounted on the top surface of the detection platform 1. Each test mechanism includes two inverted T-shaped fixing frames fixed to the top surface of the detection platform 1. Each fixing frame includes a support frame 2 and a support base 15. Two rotating frames 7 are installed between the two fixing frames. Each rotating frame 7 has a strip-shaped offset groove 8 on its surface, and a fan-shaped connecting seat 11 is fixedly installed on the bottom surface of the rotating frame 7. A device for calibrating sensors of the system under test is rotatably mounted above the support frame 2. A test frame 16 for placing dedicated detection sensors is provided. The top surface of each rotating frame 7 is fixedly connected to the bottom surface of the test frame 16. A rotating shaft 10, which rotates and engages with the support frame 2, is provided through the top surface of the two connecting seats 11. A turntable 6 driven by a servo motor is rotatably mounted on the inner wall of one of the support frames 2. A pressure guide rod 9, which passes horizontally through the interior of two offset grooves 8, is fixedly connected to the outer edge surface of the turntable 6. The outer surface of the pressure guide rod 9 abuts against the inner wall surface of the offset groove 8. Before detecting railway derailment, the sensors of the system under test need to be calibrated using dedicated detection sensors. The system sensors are mounted on the side frame of the vehicle bogie. Dedicated detection sensors and the sensors of the system being tested are fixed on the test frame 16. During calibration, a servo motor drives the turntable 6 to rotate. Simultaneously, the turntable 6 rotates, causing the pressure guide rod 9 to move synchronously. The pressure guide rod 9 slides in a directional manner within the offset groove 8. The rotating frame 7 and the support frame 2 rotate via the rotating shaft 10, which serves as the rotation center. When the pressure guide rod 9 rotates 90 degrees with the turntable 6, the rotating frame 7 rotates, causing the test frame 16 to rotate to one side. As the pressure guide rod 9 follows the turntable... When the rotating frame 7 continues to rotate 180 degrees, it drives the test frame 16 to rotate to the other side. One rotation of the turntable 6 is one cycle. The rotation of the turntable 6 drives the rotating frame 7 to reciprocate around the rotating axis 10, which detects the longitudinal tilt angle of the side frame of the vehicle bogie. This realizes the automatic reciprocating swing of the detection sensor and the sensor of the tested system, eliminating the need for manual movement of the test frame 16 and improving the automation of the detection. By comparing the detection data with the set threshold in real time, the corresponding time and error of the tested system are determined by the dedicated detection sensor and the sensor of the tested system to see if they are within the allowable range.

[0028] A horizontal guide rail 3 is provided on the bottom surface of the support base 15. A guide seat 4 is slidably installed inside the guide rail 3. A transmission plate 13 is fixed to the end of the guide seat 4. The transmission plate 13 is located directly below the connecting seat 11. Several toothed blocks 12 are installed on the bottom surface of the connecting seat 11. Several toothed blocks 14 that mesh with the toothed blocks 12 are installed on the top surface of the transmission plate 13. A U-shaped locking seat 5 is installed at the end of the inner wall of the support base 15. The locking seat 5 is used for the transmission plate 13 to pass through. When the rotating frame 7 rotates, it drives the connecting seat 11 to move synchronously. Under the meshing action of the toothed blocks 12 and the toothed blocks 14, the transmission plate 13 is driven to slide on the support base 15. Two of the transmission plates 13 are connected by a bracket rod, and the locking seat 5 further limits the movement of the transmission plate 13. The guide seat 4 slides on the guide rail 3 to ensure the stability of the transmission plate 13 during movement.

[0029] A placement rack 17 is installed on the top surface of the test rack 16. A support plate 18 for carrying the sensor of the system under test is installed in the middle of the inner cavity of the placement rack 17. Lifting plates 22 are installed above and below the support plate 18. A pressure plate 21 for positioning the dedicated detection sensor and the sensor of the system under test is installed on the bottom surface of the lifting plate 22. The dedicated detection sensor and the sensor of the system under test are loaded into the test rack 16 and the placement rack 17.

[0030] A transmission rod 20 is fixedly connected to the surface ends of the two lifting plates 22. A through slot 19 for the transmission rod 20 to slide into is provided on the surface of the bearing plate 18. A recessed hole 24 is provided in the center of the top surface of the placement frame 17. A pull rod 23 for synchronously lifting the two lifting plates 22 is installed through the recessed hole 24. A spring 25 is fixedly connected between the bottom surface of the top lifting plate 22 and the recessed surface of the recessed hole 24. A signal connection slot is provided on the side of the placement frame 17 for connecting signal lines to a dedicated detection sensor and the sensor of the detection system. By pulling the pull rod 23 upwards, the pull rod 23 drives the upper lifting plate 22, which in turn drives the spring 25, causing the spring 25 to spring back. The spring 25 deforms and is housed in the groove 24. Under the connection of the transmission rod 20, it drives the lifting plate 22 below to rise synchronously. At this time, the pressure plate 21 rises synchronously, making it convenient to place the special detection sensor and the sensor of the tested system onto the top surface of the support plate 18 and the test frame 16. Then, the tension acting on the pull rod 23 is removed, the spring 25 returns to its deformation, and the pressure plate 21 presses and fixes the special detection sensor and the sensor of the tested system. After the special detection sensor and the sensor of the tested system are connected, the test is carried out. After the test is completed, the sensor of the tested system is installed on the side frame of the vehicle bogie for testing. By calculating the test data in real time, the on-rail status of the corresponding side frame of the vehicle bogie is determined.

[0031] The present invention also provides a method for using a railway derailment detection device, the method specifically including the following steps:

[0032] Step 1: First, pull the lever 23 upwards. Through the connection of the transmission rod 20, the lever 23 drives the two lifting plates 22 to move synchronously. Place the special detection sensor and the sensor of the system under test on the top surface of the test frame 16 and the support plate 18 respectively. The upper and lower pressure plates 21 fix the special detection sensor and the sensor of the system under test.

[0033] Step 2: Drive the turntable 6 to rotate via the servo motor. Under the obstruction of the offset groove 8, the rotating frame 7 and the support frame 2 reciprocate and swing, while the test frame 16 moves synchronously to calibrate the sensors of the system under test.

[0034] Step 3: The calibrated sensors of the tested system are installed on the side frame of the vehicle bogie for testing. The on-rail status of the corresponding vehicle bogie side frame is determined by calculating the test data in real time.

[0035] In use, the present invention is driven by a servo motor to rotate the turntable 6. The rotation of the turntable 6 drives the pressure guide rod 9 to move synchronously. The pressure guide rod 9 slides in an oriented manner in the offset groove 8. The rotating frame 7 and the support frame 2 rotate through the rotating shaft 10, which serves as the rotation center point. When the pressure guide rod 9 rotates 90 degrees with the turntable 6, the rotating frame 7 rotates, causing the test frame 16 to rotate to one side. When the pressure guide rod 9 continues to rotate 180 degrees with the turntable 6, the rotating frame 7 drives the test frame 16 to rotate to the other side. One rotation of the turntable 6 is one cycle. The rotation of the turntable 6 drives the rotating frame 7 to reciprocate around the rotating shaft 10, thereby detecting the longitudinal tilt angle of the side frame of the vehicle bogie. This realizes the automatic reciprocating swing of the detection sensor and the sensor of the tested system, eliminating the need for manual movement of the test frame 16 and improving the automation of the detection.

[0036] By pulling the lever 23 upward, the lever 23 drives the upper lifting plate 22, which in turn drives the spring 25, causing the spring 25 to undergo elastic deformation and be housed in the groove hole 24. With the connection of the transmission rod 20, the lower lifting plate 22 rises synchronously. At this time, the pressure plate 21 rises synchronously, making it convenient to place the dedicated detection sensor and the sensor of the tested system onto the top surface of the support plate 18 and the test frame 16. Then, the tension acting on the lever 23 is removed, the spring 25 returns to its deformation, and the pressure plate 21 presses and fixes the dedicated detection sensor and the sensor of the tested system tightly. After the dedicated detection sensor and the sensor of the tested system are connected, the test is performed. After the test is completed, the sensor of the tested system is installed on the side frame of the vehicle bogie for testing. By calculating the test data in real time, the on-rail status of the corresponding side frame of the vehicle bogie is determined.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A railway derailment detection device, characterized in that: The test mechanism includes several reciprocating rotating test frames mounted on the top surface of the test platform (1) for calibrating the sensors of the tested system. Each test mechanism includes two inverted T-shaped fixed frames fixed on the top surface of the test platform (1). Each fixed frame includes a support frame (2) and a support base (15). Two rotating frames (7) are installed between the two fixed frames. Each rotating frame (7) has a strip-shaped offset groove (8) on its surface, and a fan-shaped connecting seat (11) is fixedly installed on the bottom surface of the rotating frame (7). The support frame (2) is rotatably mounted on top of the test frame (2). There is a test frame (16) for placing a special detection sensor. The top surface of each of the rotating frames (7) is fixed to the bottom surface of the test frame (16). A rotating shaft (10) that rotates with the support frame (2) is provided through the top surface of the two connecting seats (11). A turntable (6) driven by a servo motor is rotatably installed on the inner wall surface of one of the support frames (2). A pressure guide rod (9) that passes horizontally through the two offset grooves (8) is fixed to the outer edge surface of the turntable (6). The outer surface of the pressure guide rod (9) abuts against the inner wall surface of the offset groove (8). Before detecting railway derailment, it is necessary to calibrate the sensor of the system to be tested using a special detection sensor. The calibrated sensor of the system to be tested is then installed on the side frame of the vehicle bogie. The special detection sensor and the sensor of the system to be tested are fixed on the test frame (16). During the calibration process, the turntable (6) is driven to rotate by a servo motor. While the turntable (6) rotates, it drives the pressure guide rod (9) to move synchronously. The pressure guide rod (9) slides in the offset groove (8). The rotating frame (7) and the support frame (2) rotate through the rotating shaft (10), with the rotating shaft (10) serving as the rotation center point. When the pressure guide rod (9) rotates 90 degrees with the turntable (6), the rotating frame (7) rotates. The rotating frame (7) drives the test frame (16) to rotate to one side. When the pressure guide rod (9) continues to rotate 180 degrees with the turntable (6), the rotating frame (7) drives the test frame (16) to rotate to the other side. One rotation of the turntable (6) is one cycle. The rotation of the turntable (6) drives the rotating frame (7) to reciprocate around the rotating axis (10) to detect the longitudinal tilt angle of the side frame of the vehicle bogie. This realizes the automatic reciprocating swing of the detection sensor and the sensor of the tested system.

2. The railway derailment detection device according to claim 1, characterized in that, The bottom surface of the support base (15) is provided with a horizontal guide rail (3), and a guide seat (4) is slidably installed inside the guide rail (3). A transmission plate (13) is fixed to the end of the guide seat (4), and the transmission plate (13) is located directly below the connecting seat (11).

3. The railway derailment detection device according to claim 2, characterized in that, Several tooth blocks (12) are installed on the bottom surface of the connecting seat (11), and several tooth blocks (14) that mesh with the tooth blocks (12) are installed on the top surface of the transmission plate (13).

4. The railway derailment detection device according to claim 2, characterized in that, The inner wall end of the support base (15) is equipped with a U-shaped locking seat (5), which is used for the insertion of the transmission plate (13).

5. A railway derailment detection device according to claim 1, characterized in that, A placement rack (17) is installed on the top surface of the test rack (16). A support plate (18) for carrying the sensor of the system under test is installed in the middle of the inner cavity of the placement rack (17). Lifting plates (22) are installed above and below the support plate (18). A pressure plate (21) for positioning the special detection sensor and the sensor of the system under test is installed on the bottom surface of the lifting plate (22).

6. A railway derailment detection device according to claim 5, characterized in that, A transmission rod (20) is fixedly connected to the surface end of the two lifting plates (22). A through slot (19) for the transmission rod (20) to slide into is provided on the surface of the bearing plate (18). A groove hole (24) is provided in the middle of the top surface of the placement frame (17). A pull rod (23) for lifting the two lifting plates (22) to move synchronously is provided through the inside of the groove hole (24). A spring (25) is fixedly connected between the bottom surface of the top lifting plate (22) and the groove surface of the groove hole (24).

7. A railway derailment detection device according to claim 5, characterized in that, The side of the placement rack (17) is provided with a signal connection slot for connecting the signal line to the dedicated detection sensor and the sensor of the detection system.

8. A method of using a railway derailment detection device according to any one of claims 1-7, characterized in that, The specific steps involved in using this method are as follows: Step 1: First, pull the lever (23) upward. Through the connection of the transmission rod (20), the lever (23) drives the two lifting plates (22) to move synchronously. Place the special detection sensor and the sensor of the system under test on the top surface of the test frame (16) and the support plate (18) respectively. The upper and lower pressure plates (21) fix the special detection sensor and the sensor of the system under test. Step 2: Drive the turntable (6) to rotate by the servo motor. Under the obstruction of the offset groove (8), the rotating frame (7) and the support frame (2) will reciprocate and swing, while the test frame (16) moves synchronously to calibrate the sensor of the system under test. Step 3: The calibrated sensors of the tested system are installed on the side frame of the vehicle bogie for testing. The on-rail status of the corresponding vehicle bogie side frame is determined by calculating the test data in real time.

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