A turnout fault detection device
By designing a turnout fault detection device, a track trolley and obstacle detector are used to detect obstacles inside the turnout, which solves the shortcomings of manual inspection in the existing technology, realizes automated obstacle detection and remote feedback, and improves the safety and monitoring efficiency of turnout operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHENGZHOU RAIL TRANSIT CO LTD
- Filing Date
- 2023-08-02
- Publication Date
- 2026-05-08
AI Technical Summary
Existing turnout fault detection devices rely on electronic technology and remote video monitoring, which cannot identify obstacles inside the turnout in a timely manner. Manual inspection is required to ensure the monitoring effect, resulting in a waste of manpower.
A turnout fault detection device was designed. Through a track trolley and an obstacle device, the power transmission of the push wheel and bevel gear causes the support plate to push the cylinder at the angle of the turnout to detect the impact of the obstacle. The device provides automatic feedback through remote video monitoring, reducing manual inspection.
It enables comprehensive detection of obstacles on turnouts, reduces the frequency of manual inspections, and improves the safety and monitoring efficiency of turnout operation.
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Figure CN116985864B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of turnout fault detection technology, and in particular to a turnout fault detection device. Background Technology
[0002] A turnout is a track connection device that allows locomotives and rolling stock to switch from one track to another. They are typically installed extensively in stations and marshalling yards. Turnouts maximize the throughput capacity of a track; even on a single-track railway, installing turnouts and constructing a branch line longer than the train's length allows trains to run in opposite directions. Turnouts play a vital role on railway lines.
[0003] For obstacle detection, existing turnout fault detection devices generally rely on electronic sensors, and some also use remote video monitoring, which has achieved some results. However, in actual use, personnel are still needed to conduct line inspections to promptly remove foreign objects from the turnouts and prevent the electronic detection devices from failing to detect faults in time. By designating key monitoring locations and combining remote cameras with automatic turnout feedback, a much better monitoring effect can be achieved, thereby reducing the intensity of personnel line inspections. In addition, whether the turnout can detect obstacles also affects the monitoring effect. Therefore, there is a need for a device that can detect obstacles entering the turnout and that can promptly identify turnout anomalies using existing electronic remote monitoring, so as to periodically inspect and verify the operation of the turnouts and detect turnout anomalies in a timely manner. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a turnout fault detection device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A turnout fault detection device includes a track trolley (1) and an obstacle (2). The obstacle (2) includes a card seat (21), a support block (22) is fixedly connected to the upper side of the card seat (21), the support block (22) is provided with a vertically arranged flat slide groove (23), a support plate (24) is slidably connected in the flat slide groove (23), and a cylinder (25) is fixedly connected to one end of the support plate (24).
[0007] The support block (22) is equipped with a driving component, which is used to adjust the position of the support plate (24) in the flat slide (23).
[0008] Preferably, the driving component includes a gearbox (26), the gearbox (26) is fixedly connected to the upper side of the support plate (24), two tires (27) are rotatably connected to the bottom of the gearbox (26), the two tires (27) are correspondingly pressed and arranged on both sides of the support plate (24), the end of the rotating shaft of the tire (27) extending into the gearbox (26) is fixedly connected to a first bevel gear (261), the gearbox (26) is laterally rotatably connected to a drive shaft (262), the drive shaft (262) is fixedly connected to a turn wheel (263) in the middle, and a second bevel gear (264) is fixedly connected to the drive shaft (262), the second bevel gear (264) meshes with the first bevel gear (261);
[0009] It also includes a one-way actuation device (3) installed on the track trolley (1), which is used to actuate the actuation wheel (263) to rotate in one direction.
[0010] Preferably, the one-way actuation device (3) includes a push block (31) disposed on one side of the track trolley (1) and rotating in one direction.
[0011] The gearbox (26) is fixedly connected to a housing (28) on one side. The housing (28) contains a ratchet and pawl assembly, which is set to correspond to the drive shaft (262).
[0012] Preferably, a first motor is fixedly connected inside the track trolley (1), the main shaft of the first motor is fixedly connected to a rotating arm (32), one end of the rotating arm (32) is fixedly connected to a second motor (33), the main shaft of the second motor (33) is fixedly connected to a lifting rod (34), the bottom of the lifting rod (34) is fixedly connected to a horizontal plate (35), one end of the horizontal plate (35) is hinged to a push block (31), and a rotary torsion spring is mounted on the rotating shaft of the push block (31).
[0013] Preferably, the card holder (21) has two threaded holes on one side, and a locking bolt (211) is connected to each threaded hole.
[0014] Preferably, the support plate (24) is made of stainless steel or flat iron.
[0015] Preferably, the thickness of the support plate (24) is 2-5 mm.
[0016] Preferably, the cylinder (25) is made of rubber and has a through groove (251) with a triangular cross-section.
[0017] The advantages of this invention are:
[0018] The present invention provides a turnout fault detection device that uses a unidirectional rotation of a turnout wheel and the power transmission between the second and first bevel teeth to rotate a tire wheel. The tire wheel pushes a clamped support plate toward the angle between the switch rail and the main rail. This allows the track trolley to move forward and detect the fault once, so that the support plate pushes the cylinder deeper into the angle between the switch rail and the main rail, placing obstacles in different positions and gradually testing the impact of obstacles. Because the actual obstacle positions are random, the device can comprehensively detect whether the turnout can identify the impact of obstacles.
[0019] During track switching, the angle between the switch rail and the main rail in this invention clamps the obstacle, causing the switch rail to move closer to the main rail. Due to the internal through-groove, the cylinder is compressed and deformed. The increased contact area between the two sides of the deformed cylinder and the switch rail and main rail increases the cylinder's retraction resistance, effectively acting as an obstacle. By adjusting the position, the impact of the obstacle on the turnout can be detected, and if the cylinder does not enter the correct position, the obstacle is automatically cleared. Key monitoring positions are defined, facilitating automatic feedback from the turnout via a remote camera. Because the object is located outside the turnout, remote video monitoring requires maintenance personnel to verify it on-site due to angle issues, thus wasting manpower. This invention achieves a relatively balanced turnout safety monitoring objective. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the basic structure of the track trolley of the present invention.
[0021] Figure 2 This is a schematic diagram of the basic structure of the obstacle device of the present invention.
[0022] Figure 3 This is a schematic diagram of the detection method of the present invention on a turnout.
[0023] Figure 4 yes Figure 3 A magnified view of point E in the image.
[0024] Figure 5 This is a schematic diagram illustrating the compression principle of the cylindrical section by the pointed rail in this invention. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0026] Example 1
[0027] like Figure 1-5As shown, the present invention provides a turnout fault detection device, including a track trolley 1 and an obstacle device 2. The obstacle device 2 includes a card seat 21, a support block 22 is fixedly connected to the upper side of the card seat 21, the support block 22 is provided with a vertically arranged flat slide groove 23, a support plate 24 is slidably connected in the flat slide groove 23, and a cylinder 25 is fixedly connected to one end of the support plate 24.
[0028] The support block 22 is equipped with a driving component, which is used to adjust the position of the support plate 24 in the flat slide groove 23.
[0029] The driving component includes a gearbox 26, with the gearbox 26 fixedly connected to the upper side of the support block 22. Two tires 27 are rotatably connected to the bottom of the gearbox 26. The two tires 27 are correspondingly pressed and arranged on both sides of the support plate 24. The end of the rotating shaft of the tire 27 that extends into the gearbox 26 is fixedly connected to a first bevel gear 261. The gearbox 26 is laterally rotatably connected to a drive shaft 262. A turn wheel 263 is fixedly connected to the middle of the drive shaft 262. A second bevel gear 264 is fixedly connected to the drive shaft 262, and the second bevel gear 264 meshes with the first bevel gear 261.
[0030] It also includes a one-way toggle device 3, which is used to rotate the toggle wheel 263 in one direction. The one-way toggle device 3 can be manually toggle or mechanically driven.
[0031] This invention involves arranging testing personnel at the turnout site and communicating remotely with the turnout control room. The testing personnel set up obstacles on the turnout and adjusted their positions to test whether the remote turnout can detect incomplete track switching. This allows for the timely detection of faults where the turnout cannot recognize the entry of obstacles, facilitating the troubleshooting of the turnout through multiple tests. The system can automatically provide timely feedback, enabling timely understanding of the turnout's operating status when remotely controlling the turnout and ensuring its safe operation.
[0032] Specifically, by rotating the actuating wheel 263 in one direction, the power transmission between the second bevel tooth 264 and the first bevel tooth 261 causes the wheel 27 to rotate. The wheel 27 pushes the clamped support plate 24 towards the angle between the switch rail and the main rail. This allows the track trolley 1 to move forward and detect once, so that the support plate 24 pushes the cylinder 25 deeper into the angle between the switch rail and the main rail, placing the obstacle in different positions and gradually testing the impact of the obstacle. Because the actual obstacle position is random, this comprehensively tests whether the turnout can identify the impact of the obstacle.
[0033] Example 2
[0034] like Figure 1-5As shown, the one-way actuation device 3 includes a push block 31. The track trolley 1 has a push block 31 that rotates in one direction on one side. A first motor is fixedly connected inside the track trolley 1. The main shaft of the first motor is fixedly connected to a rotating arm 32. One end of the rotating arm 32 is fixedly connected to a second motor 33. The main shaft of the second motor 33 is fixedly connected to a hanging rod 34. The bottom of the hanging rod 34 is fixedly connected to a horizontal plate 35. One end of the horizontal plate 35 is hinged to the push block 31. A rotary torsion spring is installed on the rotating shaft of the push block 31.
[0035] The rotating arm 32 adjusts its angle via the first motor and, in conjunction with the second motor 33, adjusts the position of the horizontal plate 35 and the push block 31, so that the push block 31 can drive the actuating wheel 263 when the track trolley 1 moves back and forth.
[0036] The lower end of the push block 31 has a rounded corner 311. The rounded corner 311 pushes and squeezes the actuating wheel 263 in the positive direction. The rubber tire of the actuating wheel 263 is compressed and rolls to the bottom surface of the push block 31. The push block 31 moves forward and causes the actuating wheel 263 to rotate passively. At this time, the push block 31 is blocked by the cross plate 35 and cannot rotate. Through the action of the second bevel tooth 264 and the first bevel tooth 261, the tire wheel 27 rotates. The tire wheel 27 pushes the clamped support plate 24 towards the angle between the switch rail and the main rail. In this way, the track trolley 1 can move forward to detect once, so that the support plate 24 pushes the cylinder 25 into the angle between the switch rail and the main rail once, so that the obstacle is in different positions, which is convenient for checking whether the turnout can give timely feedback on the turnout operation status due to the presence of the obstacle.
[0037] The gearbox 26 is fixedly connected to the housing 28 on one side. The housing 28 contains a ratchet and pawl assembly, which is a conventional assembly in the prior art, used for unidirectional rotation limit. The ratchet and pawl assembly is set corresponding to the drive shaft 262.
[0038] When the track trolley 1 returns, in conjunction with the unidirectional rotation control of the ratchet and pawl assembly, the push block 31 can only move forward to avoid it, thereby gradually driving the chuck wheel 263 to rotate in one direction.
[0039] Example 3
[0040] like Figure 1-5As shown, the card holder 21 has two threaded holes on one side, and a locking bolt 211 is threaded into each threaded hole. The card holder 21 has an installation groove inside. The card holder 21 passes through the installation groove. The support plate 24 is made of stainless steel or flat iron, preferably flat iron. The surface roughness of the flat iron is greater than that of stainless steel. The thickness of the support plate 24 is 2-5mm. The thickness of the support plate 24 affects the entry between the switch rail and the main rail. Since the rail side has a process groove, it can avoid the influence of non-obstacles. It is convenient to simulate the cylinder 25 as an obstacle and the influence of its position on the track change. It can identify the response of the switch machine to the obstacle entering the turnout and avoid the safety hazards caused by the turnout not changing track in place.
[0041] When the support plate 24 has the aforementioned thickness, it can be compressed and elastically deformed into an arc shape. When the cylinder 25 is located at the edge between the switch rail and the base rail, both the support plate 24 and the cylinder 25 are elastic. The bending of the support plate 24 and the deformation of the cylinder 25 can achieve the purpose of directly and completely squeezing the obstacle out of the contact area between the switch rail and the base rail. In actual use, stones or debris falling into this area will not affect the track change, thus making it easy to mark the obstacle no-entry zone on the switch rail. Combined with video surveillance technology, this can further enhance the monitoring of foreign objects in this area.
[0042] Example 4
[0043] like Figures 3-5 As shown, the cylinder 25 is made of rubber and has a through groove 251 with a triangular cross-section. The cylinder 25 acts as a barrier between the switch rail and the base rail during the track change process. The angle between the switch rail and the base rail clamps the barrier, preventing it from approaching the base rail. Due to the action of the internal through groove 251, the cylinder 25 is compressed and becomes... Figure 5 The shape shown in the schematic diagram increases the contact area between the deformed cylinder 25 and the switch rail and the main rail on both sides, thus increasing the resistance to the retraction of the cylinder 25 and making it function as an obstacle. By adjusting its position, it can detect the impact of obstacles on the turnout, and automatically clear obstacles if the cylinder does not enter the correct position. It can also define key monitoring positions, which can be easily monitored by remote cameras and automatic feedback from the turnout. Since the object is located outside the turnout, remote video monitoring requires maintenance personnel to verify it due to the angle. Although there is a certain degree of manpower waste, it can achieve the goal of relatively balanced turnout safety monitoring.
[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A turnout fault detection device, comprising a track trolley (1) and an obstacle device (2), characterized in that: The obstacle (2) includes a card seat (21), a support block (22) is fixedly connected to the upper side of the card seat (21), the support block (22) is provided with a vertically arranged flat slide groove (23), a support plate (24) is slidably connected in the flat slide groove (23), and a cylinder (25) is fixedly connected to one end of the support plate (24). The support block (22) is provided with a driving component, which is used to adjust the position of the support plate (24) in the flat slide groove (23); The driving component includes a gearbox (26), the gearbox (26) is fixedly connected to the upper side of the support plate (24), two tires (27) are rotatably connected to the bottom of the gearbox (26), the two tires (27) are correspondingly pressed and arranged on both sides of the support plate (24), the end of the rotating shaft of the tire (27) extending into the gearbox (26) is fixedly connected to a first bevel gear (261), the gearbox (26) is laterally rotatably connected to a drive shaft (262), the drive shaft (262) is fixedly connected to a turn wheel (263) in the middle, and a second bevel gear (264) is fixedly connected to the drive shaft (262), the second bevel gear (264) meshes with the first bevel gear (261); It also includes a one-way actuation device (3) installed on the track trolley (1), which is used to actuate the actuation wheel (263) to rotate in one direction; By rotating the actuating wheel (263) in one direction, the power transmission between the second bevel tooth (264) and the first bevel tooth (261) causes the tire wheel (27) to rotate. The tire wheel (27) pushes the clamped support plate (24) towards the angle between the switch rail and the base rail, so that the track trolley (1) moves forward to detect once, so that the support plate (24) pushes the cylinder (25) into the angle between the switch rail and the base rail once, so that the obstacle is in different positions, and the influence of the obstacle is gradually tested.
2. The turnout fault detection device according to claim 1, characterized in that: The one-way actuation device (3) includes a push block (31) disposed on one side of the track trolley (1) and rotating in one direction. The gearbox (26) is fixedly connected to a housing (28) on one side. The housing (28) contains a ratchet and pawl assembly, which is set to correspond to the drive shaft (262).
3. The turnout fault detection device according to claim 2, characterized in that: The first motor is fixedly connected inside the track trolley (1). The main shaft of the first motor is fixedly connected to the rotating arm (32). One end of the rotating arm (32) is fixedly connected to the second motor (33). The main shaft of the second motor (33) is fixedly connected to the lifting rod (34). The bottom of the lifting rod (34) is fixedly connected to the horizontal plate (35). One end of the horizontal plate (35) is hinged to the push block (31). The rotating shaft of the push block (31) is equipped with a rotary torsion spring.
4. The turnout fault detection device according to claim 1, characterized in that: The card holder (21) has two threaded holes on one side, and each threaded hole is connected to a locking bolt (211) by thread.
5. The turnout fault detection device according to claim 1, characterized in that: The support plate (24) is made of stainless steel or flat iron.
6. The turnout fault detection device according to claim 5, characterized in that: The thickness of the support plate (24) is 2-5 mm.
7. The turnout fault detection device according to claim 1, characterized in that: The cylinder (25) is made of rubber and has a through groove (251) with a triangular cross-section.
Citation Information
Patent Citations
Turnout fault detection device
AU2021100862A4
Method and apparatus for detecting flaws in rail
CA445668A