Rail transit pantograph-catenary arc detection device

Abstract

The utility model discloses a rail transit pantograph -cable arc detection device belongs to rail transit detection technical field, and its technical scheme main points include the bow net electric arc ultraviolet detector, the bottom of bow net electric arc ultraviolet detector is provided with adjusting mechanism and cleaning mechanism, the adjusting mechanism includes motor box, has solved the detection angle and direction of the detection device of existing bow net electric arc and is usually fixed setting, needs to determine the detection point angle direction in advance when installing, when needing to switch detection point, needs to dismantle device and adjusts the angle again and installs, and the operation is complicated and influences detection efficiency, simultaneously, there is dust and other impurities in the rail transit operation environment, and the detection lens of detection device is easy to stick impurities, leads to the light transmittance of lens to drop, and the existing device usually lacks automatic cleaning structure, needs artificial periodical cleaning, not only increases maintenance cost, but also can be because of cleaning not in time influence detection stability and the problem of accuracy.

Description

Technical Field

[0001] This utility model relates to the field of rail transit testing technology, and in particular to a rail transit pantograph-catenary arc detection device. Background Technology

[0002] In rail transit systems, the pantograph and overhead contact line (referred to as "pantograph-catenary") are key components for trains to obtain power. The stable contact between the two directly determines the reliability of the train's power supply and operational safety. However, during high-speed train operation, factors such as contact line wear, pantograph carbon contactor wear, track bumps, and wind disturbances can easily cause temporary separation between the pantograph and the contact line, resulting in electric arcs. The continuous presence of pantograph-catenary arcs can cause multiple hazards: on the one hand, the high temperature generated by the arc accelerates the erosion of the pantograph carbon contactor and the contact line conductor, shortening their service life and increasing operation and maintenance costs; on the other hand, the arc can interfere with the stability of the train's power supply system, potentially causing failures in core equipment such as the train's traction converter, and in severe cases, even leading to train shutdowns. In addition, high-frequency arcs can also generate electromagnetic radiation, interfering with the communication signal systems along the rail transit line.

[0003] Traditional pantograph-catenary system detection devices often suffer from drawbacks such as limited detection parameters or complex equipment that is inconvenient to install and adjust, making it difficult to comprehensively, accurately, and efficiently monitor and evaluate the pantograph-catenary relationship in real time.

[0004] Existing patent (publication number: CN223319754U) discloses a pantograph-catenary relationship detection device for urban rail transit, belonging to the field of urban rail transit detection technology. It includes a profile bracket that can be installed on a rail vehicle, and an adjustable support mounted on the profile bracket. The adjustable support includes a mounting base plate and a mounting seat. The mounting seat can be fixed to the profile bracket with bolts. A geometric parameter detection module, a hard point detection module, a contact wire wear detection module, a pantograph-catenary temperature detection module, and an arc detection module can be mounted on the mounting base plate. A set of symmetrical arc-shaped slots are provided on the mounting seat. Several hollow tubes that can slide and connect to the arc-shaped slots are respectively provided at both ends of the mounting base plate. A fixing screw that can pass through the hollow tubes is installed on the mounting seat through the arc-shaped slots. This utility model's pantograph-catenary relationship detection device for urban rail transit solves the problems of traditional pantograph-catenary system detection devices having single detection parameters, complex detection equipment, and inconvenient installation and adjustment.

[0005] To address the aforementioned issues, existing patents offer solutions. However, the detection angle and direction of existing pantograph-catenary arc detection devices are typically fixed. During installation, the angle and direction of the detection points must be predetermined. When switching detection points, the device must be disassembled, the angle readjusted, and then reinstalled. This process is cumbersome and affects detection efficiency. Furthermore, the rail transit operating environment contains dust and other impurities, which can easily adhere to the detection lens, leading to a decrease in lens transmittance. Existing devices typically lack an automatic cleaning mechanism, requiring regular manual cleaning. This not only increases maintenance costs but may also affect detection stability and accuracy if cleaning is not done in a timely manner.

[0006] To address this, a pantograph-catenary arc detection device for rail transit is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a pantograph-catenary arc detection device for rail transit. This device solves the problem that the detection angle and direction of existing pantograph-catenary arc detection devices are usually fixed. During installation, the angle and direction of the detection point must be determined in advance. When it is necessary to switch the detection point, the device must be disassembled, the angle readjusted, and then reinstalled. This operation is cumbersome and affects the detection efficiency. At the same time, there are dust and other impurities in the rail transit operating environment. The detection lens of the detection device is prone to the adhesion of impurities, which leads to a decrease in the light transmittance of the lens. Existing devices usually lack an automatic cleaning structure and require manual cleaning at regular intervals. This not only increases maintenance costs but may also affect the stability and accuracy of the detection if cleaning is not timely.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pantograph-catenary arc detection device for rail transit, comprising a pantograph-catenary arc ultraviolet detector, wherein the bottom of the pantograph-catenary arc ultraviolet detector is provided with an adjustment mechanism and a cleaning mechanism;

[0009] The adjustment mechanism includes a motor housing. A first adjustment motor is fixedly connected to the top of the inner wall of the motor housing. The output shaft of the first adjustment motor passes through the top of the motor housing and is fixedly connected to an L-shaped plate. A motor cover is fixedly connected to the right side of the L-shaped plate. A second adjustment motor is disposed in the inner cavity of the motor cover. The left side of the second adjustment motor is fixedly connected to the right side of the L-shaped plate. The output shaft of the second adjustment motor passes through the L-shaped plate and is fixedly connected to a transmission shaft. A connecting block is fixedly connected to the surface of the transmission shaft. A mounting platform is fixedly connected to the top of the connecting block. The pantograph arc UV detector is fixedly mounted on the top of the mounting platform by bolts.

[0010] Preferably, the cleaning mechanism includes a miniature air pump, the front outlet of which is connected to an air supply pipe, and the front end of the air supply pipe is connected to a one-way valve.

[0011] Preferably, the front side of the one-way valve is connected to an adjusting air pipe, which is a flexible and shaped metal pipe, and the other end of the adjusting air pipe is connected to an air nozzle, which is located at the detection lens of the pantograph arc ultraviolet detector.

[0012] Preferably, a fixing plate is fixedly connected to the right side of the micro air pump, and the right side of the fixing plate is fixedly connected to the left side of the mounting platform.

[0013] Preferably, a remote control module is fixedly connected to the top of the front side of the motor housing, and the remote control module is electrically connected to the first regulating motor, the second regulating motor and the micro air pump.

[0014] Preferably, the bottom of the motor housing is fixedly connected to a mounting base, and mounting holes are provided at the four corners of the top of the mounting base.

[0015] Preferably, the top of the motor housing has a through hole for use with the first regulating motor, and the output shaft surface of the first regulating motor is rotatably connected to the inner wall of the through hole through a bearing.

[0016] Preferably, a first heat dissipation vent is provided at the bottom right side of the motor housing for use with the first regulating motor, and a first dustproof mesh is fixedly connected to the inner wall of the first heat dissipation vent.

[0017] Preferably, the right side of the L-shaped plate has a through hole for use with the second adjusting motor, and the output shaft surface of the second adjusting motor is rotatably connected to the inner wall of the through hole through a bearing.

[0018] Preferably, a second heat dissipation vent is provided on the right side of the motor cover for use with the second regulating motor, and a second dustproof net is fixedly connected to the inner wall of the second heat dissipation vent.

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

[0020] 1. This application, through the setting of the adjustment mechanism, allows for convenient and free adjustment of the horizontal and pitch angles of the pantograph-catenary arc ultraviolet detector. The detection points can be quickly switched without disassembling the device, which greatly shortens the angle adjustment time for switching detection points, improves detection efficiency, and brings convenience to operators.

[0021] 2. This application, through the establishment of a cleaning mechanism, can automatically clean the detection lens of the pantograph-catenary arc ultraviolet detector, eliminating the need for regular manual climbing and cleaning. It can promptly remove impurities from the lens surface, preventing impurities from obstructing the lens and affecting the stability and accuracy of the detection. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the rail transit pantograph-catenary arc detection device of this utility model;

[0023] Figure 2 In this utility model Figure 1 Front view structural diagram;

[0024] Figure 3 This is a split sectional view of the adjustment mechanism in this utility model;

[0025] Figure 4 This is a structural diagram of the cleaning mechanism in this utility model;

[0026] Figure 5 In this utility model Figure 3 Structural diagram of the central motor housing, L-shaped plate, and motor cover.

[0027] In the diagram, 1. Pantograph-catenary arc UV detector; 2. Adjustment mechanism; 21. Motor housing; 22. First adjusting motor; 23. L-shaped plate; 24. Motor cover; 25. Second adjusting motor; 26. Drive shaft; 27. Connecting block; 28. Mounting platform; 3. Cleaning mechanism; 31. Miniature air pump; 32. Air supply pipe; 33. One-way valve; 34. Adjusting air pipe; 35. Air nozzle; 36. Fixing plate; 4. Remote control module; 5. Mounting base; 6. Mounting hole; 7. Through hole; 8. First heat dissipation vent; 9. First dustproof net; 10. Perforation; 11. Second heat dissipation vent; 12. Second dustproof net. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 The present invention provides the following technical solution:

[0030] A pantograph-catenary arc detection device for rail transit includes a pantograph-catenary arc ultraviolet detector 1, with an adjustment mechanism 2 and a cleaning mechanism 3 provided at the bottom of the pantograph-catenary arc ultraviolet detector 1.

[0031] The adjustment mechanism 2 includes a motor housing 21. A first adjustment motor 22 is fixedly connected to the top of the inner wall of the motor housing 21. The output shaft of the first adjustment motor 22 passes through the top of the motor housing 21 and is fixedly connected to an L-shaped plate 23. A motor cover 24 is fixedly connected to the right side of the L-shaped plate 23. A second adjustment motor 25 is disposed in the inner cavity of the motor cover 24. The left side of the second adjustment motor 25 is fixedly connected to the right side of the L-shaped plate 23. The output shaft of the second adjustment motor 25 passes through the L-shaped plate 23 and is fixedly connected to a transmission shaft 26. A connecting block 27 is fixedly connected to the surface of the transmission shaft 26. A mounting platform 28 is fixedly connected to the top of the connecting block 27. The pantograph arc UV detector 1 is fixedly mounted on the top of the mounting platform 28 by bolts.

[0032] In this embodiment: by setting up a pantograph-catenary arc ultraviolet detector 1, an adjustment mechanism 2, and a cleaning mechanism 3, during use, the pantograph-catenary arc ultraviolet detector 1 can capture the characteristic ultraviolet band signals generated by the pantograph-catenary arc in real time, and synchronously output the detection data such as arc intensity and duration to the train on-board control system or ground monitoring center, providing basic data for pantograph-catenary condition assessment. The adjustment mechanism 2 allows for convenient and free adjustment of the horizontal and pitch angles of the pantograph-catenary arc ultraviolet detector 1, and allows for quick switching of detection points without disassembling the device, greatly shortening the angle adjustment time for switching detection points, improving detection efficiency, and bringing convenience to operators. The cleaning mechanism 3 enables automatic cleaning of the detection lens of the pantograph-catenary arc ultraviolet detector 1, eliminating the need for manual periodic climbing and cleaning, and promptly removing impurities from the lens surface to prevent impurities from obstructing the lens and affecting the stability and accuracy of the detection.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the cleaning mechanism 3 includes a miniature air pump 31, the front outlet of the miniature air pump 31 is connected to an air supply pipe 32, and the front end of the air supply pipe 32 is connected to a one-way valve 33.

[0034] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the front of the one-way valve 33 is connected to an adjusting air pipe 34, which is a flexible and shaped metal pipe. The other end of the adjusting air pipe 34 is connected to a jet nozzle 35, which is located at the detection lens of the pantograph arc ultraviolet detector 1.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a fixing plate 36 is fixedly connected to the right side of the miniature air pump 31, and the right side of the fixing plate 36 is fixedly connected to the left side of the mounting platform 28.

[0036] In this embodiment: by setting up a miniature air pump 31, an air supply pipe 32, a one-way valve 33, an adjusting air pipe 34, a jet nozzle 35, and a fixing plate 36, in use, the jet nozzle 35 is first adjusted to a suitable position and angle through the flexible and shapeable adjusting air pipe 34, so that the jet nozzle 35 is tilted towards the detection lens of the pantograph arc UV detector 1. When it is necessary to clean the detection lens of the pantograph arc UV detector 1, the miniature air pump 31 can be started, so that the high-pressure gas generated by the miniature air pump 31 is delivered to the one-way valve 33 through the air supply pipe 32. The one-way valve 33 can prevent gas backflow and ensure stable air pressure. Then, through the flexible and shapeable adjusting air pipe 34, the jet nozzle 35 is adjusted to a suitable position and angle, so that the jet nozzle 35 is tilted towards the detection lens of the pantograph arc UV detector 1. When it is necessary to clean the detection lens of the pantograph arc UV detector 1, the miniature air pump 31 can be started, so that the high-pressure gas generated by the miniature air pump 31 is delivered to the one-way valve 33 through the air supply pipe 32. The one-way valve 33 can prevent gas backflow and ensure stable air pressure. The curved and shaped regulating air tube 34 guides the air nozzle 35, and then the high-pressure gas is blown in a directional direction onto the detection lens surface of the arc flash UV detector 1 through the air nozzle 35. This can quickly remove impurities adhering to the lens and prevent impurities from obstructing the lens and affecting the stability and accuracy of the detection. The fixing plate 36 can support and fix the miniature air pump 31. At the same time, the fixing plate 36 is fixed to the mounting platform 28 of the adjusting mechanism 2. Thus, when the angle and direction of the arc flash UV detector 1 are adjusted, the entire cleaning mechanism 3 will also move accordingly, preventing the relative position of the air nozzle 35 and the detection lens of the arc flash UV detector 1 from changing.

[0037] Specifically, such as Figure 1 , Figure 2 As shown, a remote control module 4 is fixedly connected to the top of the front side of the motor housing 21. The remote control module 4 is electrically connected to the first regulating motor 22, the second regulating motor 25 and the micro air pump 31.

[0038] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, a mounting base 5 is fixedly connected to the bottom of the motor housing 21, and mounting holes 6 are provided at the four corners of the top of the mounting base 5.

[0039] In this embodiment: by setting up a remote control module 4, the first regulating motor 22, the second regulating motor 25 and the micro air pump 31 can be remotely controlled to work. By setting up a mounting base 5 and mounting holes 6, the device can be installed and fixed to an external detection support structure using bolts.

[0040] Specifically, such as Figure 5 As shown, the top of the motor housing 21 has a through hole 7 for use with the first regulating motor 22, and the output shaft surface of the first regulating motor 22 is rotatably connected to the inner wall of the through hole 7 through a bearing.

[0041] Specifically, such as Figure 1 , Figure 3 , Figure 5As shown, a first heat dissipation vent 8 is provided at the bottom right side of the motor housing 21 to cooperate with the first regulating motor 22, and a first dustproof net 9 is fixedly connected to the inner wall of the first heat dissipation vent 8.

[0042] In this embodiment: by providing a through hole 7, the output shaft of the first regulating motor 22 can pass through the motor housing 21 and rotate easily through the bearing; by providing a first heat dissipation vent 8, the first regulating motor 22 inside the motor housing 21 can be ventilated and cooled; by providing a first dustproof net 9, dust and impurities can be blocked from entering the motor housing 21.

[0043] Specifically, such as Figure 5 As shown, the right side of the L-shaped plate 23 has a through hole 10 for use with the second adjusting motor 25. The output shaft surface of the second adjusting motor 25 is rotatably connected to the inner wall of the through hole 10 through a bearing.

[0044] Specifically, such as Figure 1 , Figure 3 , Figure 5 As shown, a second heat dissipation vent 11 is provided on the right side of the motor cover 24 for use with the second regulating motor 25, and a second dustproof net 12 is fixedly connected to the inner wall of the second heat dissipation vent 11.

[0045] In this embodiment: by setting the perforation 10, the output shaft of the second regulating motor 25 can pass through the L-shaped plate 23 and rotate easily through the bearing; by setting the second heat dissipation vent 11, the second regulating motor 25 inside the motor cover 24 can be ventilated and dissipated; by setting the second dustproof net 12, dust and impurities can be blocked from entering the motor cover 24.

[0046] Working Principle: In use, firstly, the mounting base 5 is fixed to the external detection support structure using bolts through the mounting holes 6. Then, the pantograph-catenary arc ultraviolet detector 1 is fixedly installed on the mounting platform 28. After the pantograph-catenary arc ultraviolet detector 1 is powered on, its detection lens can be aimed at the pantograph-catenary contact area to capture the characteristic ultraviolet band signal generated by the pantograph-catenary arc in real time. The detection data such as arc intensity and duration are synchronously output to the train's onboard control system or ground monitoring center, providing basic data for pantograph-catenary condition assessment. When it is necessary to adjust the detection angle of the pantograph-catenary arc ultraviolet detector 1 to adapt to different pantograph-catenary contact positions, the angle is received through the remote control module 4. The adjustment command is transmitted to the adjustment mechanism 2. For horizontal adjustment, the first adjustment motor 22 inside the motor housing 21 is started, causing its output shaft to rotate the L-shaped plate 23, thus achieving horizontal adjustment of the pantograph arc UV detector 1. For pitch angle adjustment, the second adjustment motor 25 inside the motor cover 24 is started, causing its output shaft to rotate the transmission shaft 26. The transmission shaft 26, through the connecting block 27, drives the mounting platform 28 and the pantograph arc UV detector 1 on the platform to rotate, thus achieving pitch angle adjustment of the pantograph arc UV detector 1. This allows for convenient and free adjustment of the pantograph arc UV detector 1 in both horizontal and pitch directions. The device allows for quick switching of detection points without disassembly, significantly reducing the time required for angle and direction adjustments, thus improving detection efficiency and providing convenience for operators. When cleaning the detection lens of the pantograph-catenary arc UV detector 1, the nozzle 35 can be adjusted to a suitable position and angle using the flexible, adjustable air tube 34 before use, ensuring the nozzle 35 is tilted towards the detection lens. Then, the remote control module 4 receives the cleaning command and starts the micro air pump 31, which generates high-pressure gas that is delivered via the air supply tube 32 to the one-way valve 33. The one-way valve 33 prevents gas backflow and ensures... Once the air pressure is stabilized, the air is guided through the flexible and adjustable air tube 34 to the nozzle 35. The nozzle 35 then blows the high-pressure gas directionally onto the surface of the detection lens of the arc flash UV detector 1, quickly removing impurities adhering to the lens and preventing impurities from obstructing the lens and affecting the stability and accuracy of the detection. The fixing plate 36 supports and fixes the miniature air pump 31. At the same time, the fixing plate 36 is fixed to the mounting platform 28 of the adjustment mechanism 2, so that when the angle and direction of the arc flash UV detector 1 are adjusted, the entire cleaning mechanism 3 will also move accordingly, preventing the relative position of the nozzle 35 and the detection lens of the arc flash UV detector 1 from changing.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pantograph-catenary arc detection device for rail transit, comprising a pantograph-catenary arc ultraviolet detector (1), characterized in that: The bottom of the pantograph-catenary arc ultraviolet detector (1) is provided with an adjustment mechanism (2) and a cleaning mechanism (3); The adjustment mechanism (2) includes a motor housing (21). A first adjustment motor (22) is fixedly connected to the top of the inner wall of the motor housing (21). The output shaft of the first adjustment motor (22) passes through the top of the motor housing (21) and is fixedly connected to an L-shaped plate (23). A motor cover (24) is fixedly connected to the right side of the L-shaped plate (23). A second adjustment motor (25) is provided in the inner cavity of the motor cover (24). The left side of the second adjustment motor (25) is fixedly connected to the right side of the L-shaped plate (23). The output shaft of the second adjustment motor (25) passes through the L-shaped plate (23) and is fixedly connected to a transmission shaft (26). A connecting block (27) is fixedly connected to the surface of the transmission shaft (26). A mounting platform (28) is fixedly connected to the top of the connecting block (27). The pantograph arc UV detector (1) is fixedly mounted on the top of the mounting platform (28) by bolts.

2. The rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The cleaning mechanism (3) includes a miniature air pump (31), the front outlet of which is connected to an air supply pipe (32), and the front end of the air supply pipe (32) is connected to a one-way valve (33).

3. The rail transit pantograph-catenary arc detection device according to claim 2, characterized in that: The front side of the one-way valve (33) is connected to an adjusting air pipe (34), which is a flexible and shaped metal pipe. The other end of the adjusting air pipe (34) is connected to a jet nozzle (35), which is located at the detection lens of the pantograph arc ultraviolet detector (1).

4. The rail transit pantograph-catenary arc detection device according to claim 2, characterized in that: A fixing plate (36) is fixedly connected to the right side of the micro air pump (31), and the right side of the fixing plate (36) is fixedly connected to the left side of the mounting platform (28).

5. The rail transit pantograph-catenary arc detection device according to claim 2, characterized in that: A remote control module (4) is fixedly connected to the top of the front side of the motor housing (21). The remote control module (4) is electrically connected to the first regulating motor (22), the second regulating motor (25), and the micro air pump (31).

6. The rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The bottom of the motor housing (21) is fixedly connected to a mounting base (5), and mounting holes (6) are provided at the four corners of the top of the mounting base (5).

7. The rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The top of the motor housing (21) is provided with a through hole (7) for use with the first regulating motor (22), and the output shaft surface of the first regulating motor (22) is rotatably connected to the inner wall of the through hole (7) through a bearing.

8. The rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The bottom right side of the motor housing (21) is provided with a first heat dissipation vent (8) for use with the first regulating motor (22), and a first dustproof net (9) is fixedly connected to the inner wall of the first heat dissipation vent (8).

9. The rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The right side of the L-shaped plate (23) has a through hole (10) for use with the second regulating motor (25), and the output shaft surface of the second regulating motor (25) is rotatably connected to the inner wall of the through hole (10) through a bearing.

10. A rail transit pantograph-catenary arc detection device according to claim 1, characterized in that: The right side of the motor cover (24) is provided with a second heat dissipation vent (11) for use with the second regulating motor (25), and a second dustproof net (12) is fixedly connected to the inner wall of the second heat dissipation vent (11).

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