CN220774777U - Rail transit contact net earthing device - Google Patents
Rail transit contact net earthing device Download PDFInfo
- Publication number
- CN220774777U CN220774777U CN202321722200.9U CN202321722200U CN220774777U CN 220774777 U CN220774777 U CN 220774777U CN 202321722200 U CN202321722200 U CN 202321722200U CN 220774777 U CN220774777 U CN 220774777U
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- Prior art keywords
- mounting plate
- telescopic rod
- servo motor
- bottom box
- grounding device
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- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of contact network grounding, in particular to a rail transit contact network grounding device, which comprises a bottom box; a top plate is arranged above the bottom box, two brackets are fixedly arranged between the top plate and the bottom box, a telescopic rod is rotatably arranged between the two brackets, and a power assembly A for driving the telescopic rod to rotate is arranged on the bottom box; the end part of the telescopic rod is fixedly connected with a mounting plate, a sliding hole is formed in the mounting plate along the length direction of the mounting plate, two connecting sliding blocks are slidably arranged in the sliding hole, a power component B for driving the two connecting sliding blocks to approach or separate from each other is arranged on the mounting plate, and arc-shaped conducting plates are fixed on the two connecting sliding blocks; the upper end of the sliding hole is provided with a heating spray head. The cable grounding device is high in stability, can adapt to the shaking of the cable, has the function of melting the ice layer of the cable, can realize the grounding of the high-voltage cable in winter, and is high in practicability.
Description
Technical Field
The utility model relates to the technical field of contact net grounding, in particular to a rail transit contact net grounding device.
Background
The overhead contact system is a high-voltage power transmission line which is erected along the upper space of a steel rail in a zigzag manner and is used for supplying current to a pantograph, the overhead contact system is a main framework of a railway electrification project, and the overhead contact system is a special-type power transmission line which is erected along the upper space of a railway and is used for supplying power to an electric locomotive. At present, when the contact network is maintained or repaired, current generated on the contact network needs to be guided to the ground by using a grounding device.
The Chinese patent with the publication number of CN217115113U discloses a novel contact net electricity-checking grounding device, which relates to the technical field of rail transit detection and has the technical scheme that: the device also comprises a second driving component and a grounding component; the first driving assembly, the electricity testing assembly, the second driving assembly and the grounding assembly are all arranged on the mounting base; after the first driving component responds to the electroscope signal output by the controller, the electroscope hook in the electroscope component is driven to contact with the contact net; the second driving component drives the grounding hook in the grounding component to be conducted with the grounding end after responding to the grounding signal output by the controller; the controller detects the voltage value of the contact network through a voltage transformer in the electricity testing assembly, adjusts the voltage value of the contact network to a safe ground voltage value in a secondary side discharging mode of the voltage transformer, and generates a ground signal after the voltage value is adjusted.
The following technical drawbacks remain in the above-mentioned published patents: when the high-voltage line shakes, the electricity checking hook is easily separated from the contact net; in winter, the surface of the contact net can be tied with a layer of frost, so that the electricity testing hook cannot be contacted without the contact net.
Disclosure of Invention
The utility model aims to solve the technical problems in the background art and provides a track traffic contact net grounding device.
The technical scheme of the utility model is as follows: a track traffic contact net grounding device comprises a bottom box; a top plate is arranged above the bottom box, two brackets are fixedly arranged between the top plate and the bottom box, a telescopic rod is rotatably arranged between the two brackets, and a power assembly A for driving the telescopic rod to rotate is arranged on the bottom box; the end part of the telescopic rod is fixedly connected with a mounting plate, a sliding hole is formed in the mounting plate along the length direction of the mounting plate, two connecting sliding blocks are slidably arranged in the sliding hole, a power component B for driving the two connecting sliding blocks to approach or separate from each other is arranged on the mounting plate, arc-shaped conducting plates are fixed on the two connecting sliding blocks, and a grounding cable is connected to the arc-shaped conducting plates; the upper end of the sliding hole is provided with a heating spray head, a hot air blower and a controller are arranged in the bottom box, and a hot air pipe is connected between the hot air blower and the heating spray head.
Preferably, the power component A comprises a servo motor A, a winding wheel and a steel wire rope, wherein the winding wheel is rotatably arranged between two brackets, the servo motor A is fixed on the brackets, an output shaft of the servo motor A is connected with a rotating shaft of the winding wheel, the steel wire rope is fixedly wound on the winding wheel, and the other end of the steel wire rope is fixedly connected with the telescopic rod.
Preferably, the power assembly B comprises a servo motor B and a bidirectional screw rod, wherein the servo motor B is fixed on the inner side of the sliding hole, the bidirectional screw rod is connected with an output shaft of the servo motor B, and the two connecting sliding blocks are symmetrically arranged on the bidirectional screw rod and are in threaded connection with the bidirectional screw rod.
Preferably, the bottom of roof installs the camera, camera and controller electric connection.
Preferably, the mounting plate and the bi-directional screw are both made of an insulating material.
Preferably, a baffle is arranged above the servo motor B.
Preferably, a temperature sensor is mounted at the bottom end of the top plate, and the temperature sensor is electrically connected with the controller.
Preferably, the grounding cable and the hot air pipe are both fixed on the telescopic rod through the limiting ring.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: in the process of grounding wires, the telescopic rod is driven to rotate through the arranged power component A, so that the mounting plate is lapped on the high-voltage wires, the two arc-shaped conducting plates are driven by the arranged power component B to clamp the high-voltage wires, the grounding is realized, the telescopic rod and the winding wheel are flexibly connected through the steel wire rope, and the telescopic rod can realize the telescopic action with a certain length, so that the high-voltage wires can drive the telescopic rod to adaptively move when shaking, and compared with a fixed connection mode, the structure is safer and more reliable, and the stability of equipment is improved; when the air temperature is lower than minus, frost can be formed on the surface of the high-voltage wire, so that the contact between the arc-shaped conducting plate and the high-voltage wire cannot be ensured, a hot air blower can be started to work under the condition, hot air generated by the hot air blower is conveyed into a heating spray head through a hot air pipe and finally blown to the high-voltage wire, and therefore, an ice layer on the surface of the high-voltage wire can be melted; in conclusion, the cable grounding device is high in stability, can adapt to the shaking of the cable, has the function of melting the ice layer of the cable, can realize the grounding of the high-voltage cable in winter, and is high in practicability.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the mounting plate, the arc-shaped conductive plate and the power assembly B according to the present utility model.
Fig. 3 is a side cross-sectional view of the bottom box of the present utility model.
Reference numerals: 1. a bottom box; 2. a bracket; 3. a telescopic rod; 4. a top plate; 5. a servo motor A; 6. a winding wheel; 7. a camera; 8. a mounting plate; 801. a slide hole; 9. an arc-shaped conductive plate; 10. a ground cable; 11. an air heater; 12. a controller; 13. a wire rope; 14. a hot air pipe; 15. a limiting ring; 16. heating the spray head; 17. a servo motor B; 18. a baffle; 19. a two-way screw rod; 20. and a connecting sliding block.
Detailed Description
Example 1
As shown in fig. 1-3, the utility model provides a grounding device of a track traffic contact net, which comprises a bottom box 1; a top plate 4 is arranged above the bottom box 1, two brackets 2 are fixedly arranged between the top plate 4 and the bottom box 1, a telescopic rod 3 is rotatably arranged between the two brackets 2, and a power component A for driving the telescopic rod 3 to rotate is arranged on the bottom box 1; the end part of the telescopic rod 3 is fixedly connected with a mounting plate 8, a sliding hole 801 is formed in the mounting plate 8 along the length direction of the mounting plate, two connecting sliding blocks 20 are slidably mounted in the sliding hole 801, a power component B for driving the two connecting sliding blocks 20 to approach or separate from each other is mounted on the mounting plate 8, arc-shaped conducting plates 9 are fixed on the two connecting sliding blocks 20, and a grounding cable 10 is connected to the arc-shaped conducting plates 9; the upper end of the sliding hole 801 is provided with a heating spray head 16, the bottom box 1 is provided with a hot air blower 11 and a controller 12, and a hot air pipe 14 is connected between the hot air blower 11 and the heating spray head 16.
The power assembly A comprises a servo motor A5, a winding wheel 6 and a steel wire rope 13, wherein the winding wheel 6 is rotatably arranged between the two brackets 2, the servo motor A5 is fixed on the brackets 2, an output shaft of the servo motor A5 is connected with a rotating shaft of the winding wheel 6, the steel wire rope 13 is fixedly wound on the winding wheel 6, and the other end of the steel wire rope is fixedly connected with the telescopic rod 3.
The power assembly B comprises a servo motor B17 and a bidirectional screw rod 19, wherein the servo motor B17 is fixed on the inner side of the sliding hole 801, the bidirectional screw rod 19 is connected with an output shaft of the servo motor B17, and two connecting sliding blocks 20 are symmetrically arranged on the bidirectional screw rod 19 and are in threaded connection with the bidirectional screw rod 19.
The mounting plate 8 and the bi-directional screw 19 are both made of an insulating material.
A baffle 18 is arranged above the servo motor B17.
A temperature sensor is mounted at the bottom end of the top plate 4 and is electrically connected with a controller 12.
The grounding cable 10 and the hot air pipe 14 are fixed on the telescopic rod 3 through a limiting ring 15.
In the embodiment, in the process of grounding wires, the telescopic rod 3 is driven to rotate through the arranged power component A, so that the mounting plate 8 is lapped on a high-voltage wire, the two arc-shaped conducting plates 9 are driven to clamp the high-voltage wire through the arranged power component B, the grounding is realized, the telescopic rod 3 and the winding wheel 6 are flexibly connected through the steel wire rope 13, the telescopic rod 3 can realize the telescopic action of a certain length, the high-voltage wire can drive the telescopic rod 3 to adaptively move when shaking, and compared with a fixed connection mode, the structure is safer and more reliable, and the stability of equipment is improved; when the air temperature is lower than minus, frost can be formed on the surface of the high-voltage wire, so that the contact between the arc-shaped conducting plate 9 and the high-voltage wire cannot be ensured, the air heater 11 can be started to work under the condition, hot air generated by the air heater 11 is conducted into the heating spray head 16 through the air pipe 14 and finally blown to the high-voltage wire, and therefore the ice layer on the surface of the high-voltage wire can be melted.
Example two
As shown in fig. 1, in the grounding device for the track traffic overhead line system according to the present utility model, compared with the first embodiment, the bottom end of the top plate 4 is provided with the camera 7, and the camera 7 is electrically connected with the controller 12.
In this embodiment, the ground state can be monitored in real time by the camera 7.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (8)
1. The grounding device of the track traffic contact net is characterized by comprising a bottom box (1); a top plate (4) is arranged above the bottom box (1), two brackets (2) are fixedly arranged between the top plate (4) and the bottom box (1), a telescopic rod (3) is rotatably arranged between the two brackets (2), and a power component A for driving the telescopic rod (3) to rotate is arranged on the bottom box (1); the end part of the telescopic rod (3) is fixedly connected with a mounting plate (8), a sliding hole (801) is formed in the mounting plate (8) along the length direction of the mounting plate, two connecting sliding blocks (20) are slidably mounted in the sliding hole (801), a power component B for driving the two connecting sliding blocks (20) to approach or separate from each other is mounted on the mounting plate (8), arc-shaped conducting plates (9) are fixed on the two connecting sliding blocks (20), and a grounding cable (10) is connected on the arc-shaped conducting plates (9); the upper end of the sliding hole (801) is provided with a heating spray head (16), the bottom box (1) is provided with a hot air blower (11) and a controller (12), and a hot air pipe (14) is connected between the hot air blower (11) and the heating spray head (16).
2. The track traffic contact net grounding device according to claim 1, wherein the power assembly A comprises a servo motor A (5), a winding wheel (6) and a steel wire rope (13), the winding wheel (6) is rotatably arranged between the two brackets (2), the servo motor A (5) is fixed on the brackets (2) and the output shaft of the servo motor A is connected with the rotating shaft of the winding wheel (6), the steel wire rope (13) is fixedly wound on the winding wheel (6), and the other end of the steel wire rope is fixedly connected with the telescopic rod (3).
3. The track traffic catenary grounding device according to claim 1, wherein the power assembly B comprises a servo motor B (17) and a bidirectional screw rod (19), the servo motor B (17) is fixed on the inner side of the sliding hole (801), the bidirectional screw rod (19) is connected with an output shaft of the servo motor B (17), and the two connecting sliding blocks (20) are symmetrically arranged on the bidirectional screw rod (19) and are in threaded connection with the bidirectional screw rod (19).
4. The grounding device of the rail transit contact network according to claim 1, wherein a camera (7) is installed at the bottom end of the top plate (4), and the camera (7) is electrically connected with the controller (12).
5. A rail transit catenary grounding device according to claim 3, characterized in that the mounting plate (8) and the bi-directional screw (19) are both made of an insulating material.
6. A rail transit catenary grounding device according to claim 3, characterized in that a baffle (18) is arranged above the servo motor B (17).
7. The track traffic catenary grounding device according to claim 1, wherein a temperature sensor is mounted at the bottom end of the top plate (4), and the temperature sensor is electrically connected with the controller (12).
8. The track traffic catenary grounding device according to claim 1, characterized in that the grounding cable (10) and the hot air pipe (14) are both fixed on the telescopic rod (3) through a limiting ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321722200.9U CN220774777U (en) | 2023-07-03 | 2023-07-03 | Rail transit contact net earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321722200.9U CN220774777U (en) | 2023-07-03 | 2023-07-03 | Rail transit contact net earthing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220774777U true CN220774777U (en) | 2024-04-12 |
Family
ID=90617261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321722200.9U Active CN220774777U (en) | 2023-07-03 | 2023-07-03 | Rail transit contact net earthing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220774777U (en) |
-
2023
- 2023-07-03 CN CN202321722200.9U patent/CN220774777U/en active Active
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