CN117346992B - Online simulation testing device and method for elastic damping positioning wire clamp - Google Patents
Online simulation testing device and method for elastic damping positioning wire clamp Download PDFInfo
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- CN117346992B CN117346992B CN202311416667.5A CN202311416667A CN117346992B CN 117346992 B CN117346992 B CN 117346992B CN 202311416667 A CN202311416667 A CN 202311416667A CN 117346992 B CN117346992 B CN 117346992B
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- 238000013016 damping Methods 0.000 title claims abstract description 130
- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000004088 simulation Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 13
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 17
- 238000000429 assembly Methods 0.000 claims abstract description 17
- 238000010998 test method Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 63
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to the technical field of electrified railways and mechanical engineering, and discloses an online simulation test device and a test method for an elastic damping positioning wire clamp, wherein the online simulation test device for the elastic damping positioning wire clamp comprises a plurality of groups of elastic damping positioning wire clamp test bench assemblies, a vehicle simulation body, a bus plate, a contact wire, a measurement and control platform, a pantograph simulation body and a guide rail; the on-line simulation test method of the elastic damping positioning wire clamps is used for correctly evaluating the energy consumption performance and the contact wire vibration performance of each group of the elastic damping positioning wire clamps by collecting the vibration curves of each group, and reasonably matching the relation between the running speed of the vehicle and the elastic damping characteristics of the elastic damping positioning wire clamps. The testing device provided by the invention has a simple structure, and the testing method is correct and reasonable, so that the performance of the elastic damping positioning wire clamp is effectively ensured, the service lives of the contact wire and the positioning wire clamp are prolonged, the working reliability of the electrified railway contact network is fully ensured, and the testing device has a wide application prospect.
Description
Technical Field
The invention discloses an online simulation test device and a test method for an elastic damping positioning wire clamp, and relates to the technical field of electrified railways and mechanical engineering.
Background
The high-speed railway contact net is equipment for ensuring the transportation safety of the electrified railway, and the positioning wire clamp is one of important components of a contact net system and plays roles of bearing capacity and current carrying. An elastic damping positioning wire clamp (ZL 202310892242.5) converts the axial acting force of a positioning rod into the radial pressing force of a friction damping block on the positioning rod through an elastic damping assembly. When the electric locomotive runs through, the pantograph forms a lifting effect on the contact wire, the contact wire and the positioning wire clamp are caused to vibrate, the positioning rod moves up and down, the friction damping block generates friction damping force, vibration energy of the elastic damping positioning wire clamp is absorbed and consumed, and vibration reduction and vibration elimination effects are achieved on the contact wire and the positioning wire clamp.
Because the elastic damping locating wire clamps are all used in a group installation mode in the actual use process, the bus plate is clamped below each elastic damping locating wire, and the contact wires are clamped in clamping grooves below the bus plate, so that the elastic damping locating wire clamps in the configuration installation mode are connected into a whole through the bus plate and the contact wires, when a pantograph passes through the pantograph or is subjected to wind load, when the bus plate and the contact wires vibrate, the vibration performances of adjacent elastic damping locating wire clamps are mutually influenced and related.
Disclosure of Invention
In order to fully understand the vibration performance of a contact net, the invention provides an on-line simulation test device and a test method for an elastic damping positioning wire clamp.
The technical scheme of the invention is as follows:
an on-line simulation test device for an elastic damping positioning wire clamp comprises a plurality of groups of elastic damping positioning wire clamp test bench assemblies, a vehicle simulator, a bus plate, a contact wire, a measurement and control platform, a pantograph simulator and a guide rail;
The single elastic damping positioning wire clamp test bench assembly comprises an elastic damping positioning wire clamp test bench frame, a displacement sensor and an elastic damping positioning wire clamp;
The bottom of the frame of the elastic damping positioning wire clamp test bench is a frame base, the right side of the frame base is a frame upright post, the middle of the frame base is an elastic damping positioning wire clamp mounting seat, the top of the frame base is a displacement sensor mounting seat, and the frame base, the frame upright post, the elastic damping positioning wire clamp mounting seat and the displacement sensor mounting seat are reliably connected into a whole to form the frame of the elastic damping positioning wire clamp test bench;
the displacement sensor comprises a displacement sensor body and a displacement sensor detection part;
The elastic damping positioning wire clamp comprises an elastic damping positioning wire clamp base, a positioning rod, a left buckle of the bus plate, a right buckle of the bus plate, a bus plate mounting seat and an elastic damping assembly;
the elastic damping positioning wire clamp is reliably mounted on an elastic damping positioning wire clamp mounting seat of the elastic damping positioning wire clamp test bench frame through an elastic damping positioning wire clamp base;
Each displacement sensor is mounted on a displacement sensor mounting seat of the elastic damping positioning wire clamp test bench frame through a displacement sensor body, a detection part of each displacement sensor is reliably connected with the top of a positioning rod, and signals and power supply clues of the displacement sensors are connected to a measurement and control platform;
the left buckle of the bus plate and the right buckle of the bus plate are respectively and reliably clamped with the left edge and the right edge of the upper part of the bus plate, the bus plate is reliably installed on a bus plate installation seat, and the bus plate is reliably connected with each group of elastic damping positioning wire clamps;
The contact line is reliably clamped in a contact line clamping groove at the lower part of the bus plate;
vehicle simulator wheels are arranged below the vehicle simulator;
the vehicle simulation body wheels are erected on the guide rail; the linear motor can form linear motion along the guide rail under the drive of the linear motor;
The pantograph simulator comprises a pantograph slide plate at the top, a pantograph support at the middle and a pantograph base at the bottom, wherein the pantograph base is reliably arranged at the top of the vehicle simulator, and the upper surface of the pantograph slide plate is tightly attached to the lower end of a contact line under the action of a supporting air bag and keeps a certain lifting force.
Preferably, the displacement sensor is one of a guy type displacement sensor, a laser displacement sensor, a magnetostrictive displacement sensor, an eddy current displacement sensor and a light ruler.
Preferably, the driving device of the vehicle simulator is one of a linear motor, a belt drive, a chain drive or a reel wire drive.
Preferably, the number of the elastic damping positioning wire clamp test bench assemblies is 3 or more.
The online simulation test method for the elastic damping positioning wire clamp utilizes the online simulation test device for the elastic damping positioning wire clamp, and comprises the following steps:
(1) The measurement and control platform records signals of displacement sensors of a plurality of groups of elastic damping positioning wire clamp test bench assemblies as initial signals;
(2) The vehicle simulation body is arranged at the far end of the left side close to the first group of elastic damping positioning wire clamp test bench components, and the vehicle simulation body is controlled to perform rightward acceleration movement through the measurement and control platform;
(3) When the vehicle simulation body reaches the vicinity of the first group of elastic damping positioning wire clamp test bench components, the measurement and control platform controls the vehicle simulation body to perform uniform motion;
(4) The vehicle simulator uniformly passes through a test area formed by a plurality of groups of elastic damping positioning wire clamp test board assemblies, in the process, the measurement and control platform acquires displacement change signals of positioning rods in the plurality of groups of elastic damping positioning wire clamp test board assemblies through displacement sensors arranged on the plurality of groups of elastic damping positioning wire clamp test board assemblies, and forms a plurality of groups of displacement vibration curves;
(5) Changing the uniform motion speed of the vehicle simulation body entering the test area, and recording a plurality of groups of displacement vibration curves under the corresponding speed;
(6) The vibration analysis of the test bench assemblies of the plurality of groups of elastic damping positioning wire clamps at the same speed is carried out by the measurement and control platform, so as to find the related vibration curves of the adjacent elastic damping positioning wire clamp test bench assemblies, wherein the related vibration curves are mutually influenced;
(7) Vibration analysis is carried out on a plurality of groups of elastic damping positioning wire clamp test bench assemblies at different speeds through the measurement and control platform, and vibration relation curves between the speeds and the elastic damping positioning wire clamps are found;
(8) The elastic damping characteristics of the elastic damping positioning wire clamps are adjusted, so that the elastic damping positioning wire clamps are applied to railway contact networks of vehicles at different running speeds.
The beneficial effects of the invention are as follows:
The testing device provided by the invention has a simple structure, and the testing method is correct and reasonable, so that the performance of the elastic damping positioning wire clamp is effectively ensured, the service lives of the contact wire and the positioning wire clamp are prolonged, the working reliability of the electrified railway contact network is fully ensured, and the testing device has a wide application prospect.
According to the on-line simulation test method for the elastic damping positioning wire clamps, the energy consumption performance and the contact wire vibration performance of each group of elastic damping positioning wire clamps are correctly evaluated by collecting the vibration curves of each group, and the relation between the running speed of a vehicle and the elastic damping characteristics of the elastic damping positioning wire clamps is reasonably matched.
Drawings
FIG. 1 is a schematic structural view of a testing device of the present invention, with an assembly of an elastic damping positioning wire clamp test stand shown in block diagram form;
fig. 2 is a side view of fig. 1.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Examples
1-2, An on-line simulation test device for an elastic damping positioning wire clamp comprises an A1-A10 group elastic damping positioning wire clamp test bench assembly, a vehicle simulation body 2, a bus plate 5, a contact wire 6, a measurement and control platform 7, a pantograph simulation body 8 and a guide rail 9;
The single elastic damping positioning wire clamp test bench assembly comprises an elastic damping positioning wire clamp test bench frame 1, a displacement sensor 3 and an elastic damping positioning wire clamp 4;
the bottom of the elastic damping positioning wire clamp test bench frame 1 is a frame base 1-1, the right side is a frame upright post 1-2, the middle is an elastic damping positioning wire clamp mounting seat 1-3, the top is a displacement sensor mounting seat 1-4, and the frame base 1-1, the frame upright post 1-2, the elastic damping positioning wire clamp mounting seat 1-3 and the displacement sensor mounting seat 1-4 are reliably connected into a whole to form the elastic damping positioning wire clamp test bench frame 1;
The displacement sensor 3 comprises a displacement sensor body 3-1 and a displacement sensor detection part 3-2;
The elastic damping positioning wire clamp 4 comprises an elastic damping positioning wire clamp base 4-1, a positioning rod 4-2, a bus plate left buckle 4-3, a bus plate right buckle 4-4, a bus plate mounting seat 4-5 and an elastic damping assembly 4-6;
The elastic damping positioning wire clamp 4 is reliably mounted on the elastic damping positioning wire clamp mounting seat 1-3 of the elastic damping positioning wire clamp test bench frame 1 through the elastic damping positioning wire clamp base 4-1;
each displacement sensor 3 is mounted on a displacement sensor mounting seat 1-4 of the elastic damping positioning wire clamp test bench frame 1 through a displacement sensor body 3-1, a displacement sensor detection part 3-2 is reliably connected with the top of a positioning rod 4-2, and signals and power supply cues of the displacement sensors 3 are connected to a measurement and control platform 7;
The bus plate left buckle 4-3 and the bus plate right buckle 4-4 are respectively and reliably clamped with the left and right edges of the upper part of the bus plate 5, the bus plate 5 is reliably installed on the bus plate installation seat 4-5, and the bus plate 5 and each group of elastic damping positioning clamps form reliable connection;
The contact wire 6 is reliably clamped in a contact wire clamping groove at the lower part of the bus plate 5;
a vehicle simulator wheel 2-1 is arranged below the vehicle simulator 2;
The vehicle simulation body wheels 2-1 are arranged on the guide rail 9; can form the rectilinear motion along the guide rail 9 under the drive of the linear motor;
the pantograph simulator 8 comprises a pantograph slide plate 8-1 at the top, a pantograph support 8-2 at the middle and a pantograph base 8-3 at the bottom, wherein the pantograph base 8-3 is reliably arranged at the top of the vehicle simulator 2, and the upper surface of the pantograph slide plate 8-1 is tightly attached to the lower end of the contact line 6 under the action of a supporting air bag and keeps a certain lifting force.
Preferably, the displacement sensor 3 is one of a pull-wire type displacement sensor, a laser displacement sensor, a magnetostrictive displacement sensor, an eddy current displacement sensor, and a light ruler.
Preferably, the driving device of the vehicle simulation body 2 is one of a linear motor, a belt transmission, a chain transmission or a reel wire transmission.
Preferably, the number of the elastic damping positioning wire clamp test bench components is 3 groups and more than 3 groups.
The online simulation test method for the elastic damping positioning wire clamp utilizes the online simulation test device for the elastic damping positioning wire clamp, and comprises the following steps:
(1) The measurement and control platform 7 records signals of the displacement sensor 3 of the A1-A10 group elastic damping positioning wire clamp test bench assembly as initial signals;
(2) The vehicle simulation body 2 is arranged at the far end of the left side close to the A1 group elastic damping positioning wire clamp test bench assembly, and the vehicle simulation body 2 is controlled to perform rightward acceleration movement through the measurement and control platform 7;
(3) When the vehicle simulation body 2 reaches the vicinity of the A1 group elastic damping positioning wire clamp test bench assembly, the measurement and control platform 7 controls the vehicle simulation body 2 to perform uniform motion;
(4) In the process, a measurement and control platform 7 acquires displacement change signals of a positioning rod 4-2 in the A1-A10 group elastic damping positioning wire clamp test bench assembly through a displacement sensor 3 arranged on the A1-A10 group elastic damping positioning wire clamp test bench assembly and forms a displacement vibration curve of the A1-A10 group;
(5) Changing the uniform motion speed of the vehicle simulation body 2 entering the test area, and recording a plurality of groups of displacement vibration curves under the corresponding speed;
(6) The vibration analysis of the A1-A10 group elastic damping positioning wire clamp test bench assemblies at the same speed is carried out through the measurement and control platform 7, and the correlation vibration curves which are mutually influenced between the adjacent elastic damping positioning wire clamp test bench assemblies are searched;
(7) Vibration analysis is carried out on the A1-A10 group elastic damping positioning wire clamp test bench components under different speeds through the measurement and control platform 7, and a vibration relation curve between the speed and the elastic damping positioning wire clamp is searched;
(8) The elastic damping characteristics of the elastic damping positioning wire clamps are adjusted, so that the elastic damping positioning wire clamps are applied to railway contact networks of vehicles at different running speeds.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (4)
1. An online simulation test method for an elastic damping positioning wire clamp utilizes an online simulation test device for the elastic damping positioning wire clamp, wherein the device comprises a plurality of groups of elastic damping positioning wire clamp test bench assemblies, a vehicle simulation body (2), a bus plate (5), a contact wire (6), a measurement and control platform (7), a pantograph simulation body (8) and a guide rail (9);
the single elastic damping positioning wire clamp test bench assembly comprises an elastic damping positioning wire clamp test bench frame (1), a displacement sensor (3) and an elastic damping positioning wire clamp (4);
The bottom of the elastic damping positioning wire clamp test bench frame (1) is a frame base (1-1), the right side of the frame base is a frame upright post (1-2), the middle of the frame base is an elastic damping positioning wire clamp mounting seat (1-3), the top of the frame base is a displacement sensor mounting seat (1-4), and the frame base (1-1), the frame upright post (1-2), the elastic damping positioning wire clamp mounting seat (1-3) and the displacement sensor mounting seat (1-4) are reliably connected into a whole to form the elastic damping positioning wire clamp test bench frame (1);
the displacement sensor (3) comprises a displacement sensor body (3-1) and a displacement sensor detection part (3-2);
the elastic damping positioning wire clamp (4) comprises an elastic damping positioning wire clamp base (4-1), a positioning rod (4-2), a bus plate left buckle (4-3), a bus plate right buckle (4-4), a bus plate mounting seat (4-5) and an elastic damping assembly (4-6);
The elastic damping positioning wire clamp (4) is reliably mounted on an elastic damping positioning wire clamp mounting seat (1-3) of the elastic damping positioning wire clamp test bench frame (1) through an elastic damping positioning wire clamp base (4-1);
Each displacement sensor (3) is mounted on a displacement sensor mounting seat (1-4) of the elastic damping positioning wire clamp test bench frame (1) through a displacement sensor body (3-1), a displacement sensor detection part (3-2) is reliably connected with the top of a positioning rod (4-2), and signals and power supply wires of the displacement sensor (3) are connected to a measurement and control platform (7);
The bus plate left buckle (4-3) and the bus plate right buckle (4-4) are respectively and reliably clamped with the left and right edges of the upper part of the bus plate (5), the bus plate (5) is reliably installed on the bus plate installation seat (4-5), and the bus plate (5) and each group of elastic damping positioning wire clamps form reliable connection;
the contact line (6) is reliably clamped in a contact line clamping groove at the lower part of the bus plate (5);
A vehicle simulation body wheel (2-1) is arranged below the vehicle simulation body (2);
The vehicle simulation body wheels (2-1) are arranged on the guide rail (9); can form the rectilinear motion along the guide rail (9) under the drive of the linear motor;
The pantograph simulation body (8) comprises a pantograph sliding plate (8-1) at the top, a pantograph bracket (8-2) at the middle part and a pantograph base (8-3) at the bottom, the pantograph base (8-3) is reliably arranged at the top of the vehicle simulation body (2), and the upper surface of the pantograph sliding plate (8-1) is tightly attached to the lower end of a contact line (6) under the action of a supporting air bag and keeps a certain lifting force;
The method is characterized by comprising the following steps:
(1) The measurement and control platform (7) records signals of the displacement sensors (3) of the plurality of groups of elastic damping positioning wire clamp test bench assemblies as initial signals;
(2) The vehicle simulation body (2) is arranged at the far end of the left side close to the first group of elastic damping positioning wire clamp test bench components, and the vehicle simulation body (2) is controlled to perform rightward acceleration movement through the measurement and control platform (7);
(3) When the vehicle simulation body (2) reaches the vicinity of the first group of elastic damping positioning wire clamp test bench components, the measurement and control platform (7) controls the vehicle simulation body (2) to perform uniform motion;
(4) In the process, a measurement and control platform (7) collects displacement change signals of positioning rods (4-2) in a plurality of groups of elastic damping positioning wire clamp test bench assemblies through displacement sensors (3) arranged on the plurality of groups of elastic damping positioning wire clamp test bench assemblies and forms a plurality of groups of displacement vibration curves;
(5) Changing the uniform motion speed of the vehicle simulation body (2) entering the test area, and recording a plurality of groups of displacement vibration curves under the corresponding speed;
(6) The vibration analysis of a plurality of groups of elastic damping positioning wire clamp test bench components at the same speed is carried out through the measurement and control platform (7), and related vibration curves which are mutually influenced between adjacent elastic damping positioning wire clamp test bench components are searched;
(7) Vibration analysis is carried out on a plurality of groups of elastic damping positioning wire clamp test bench assemblies at different speeds through the measurement and control platform (7), and a vibration relation curve between the speed and the elastic damping positioning wire clamps is searched;
(8) The elastic damping characteristics of the elastic damping positioning wire clamps are adjusted, so that the elastic damping positioning wire clamps are applied to railway contact networks of vehicles at different running speeds.
2. The method for testing the vibration performance of the elastic damping positioning wire clamp configuration according to claim 1, wherein the method comprises the following steps: the displacement sensor (3) is one of a stay wire type displacement sensor, a laser displacement sensor, a magnetostriction displacement sensor, an eddy current displacement sensor and a light ruler.
3. The method for testing the vibration performance of the elastic damping positioning wire clamp configuration according to claim 1, wherein the method comprises the following steps: the driving device of the vehicle simulation body (2) is one of a linear motor, belt transmission, chain transmission or reel steel cable transmission.
4. The method for testing the vibration performance of the elastic damping positioning wire clamp configuration according to claim 1, wherein the method comprises the following steps: the number of the elastic damping positioning wire clamp test bench components is 3 groups or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311416667.5A CN117346992B (en) | 2023-10-30 | 2023-10-30 | Online simulation testing device and method for elastic damping positioning wire clamp |
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| CN202311416667.5A CN117346992B (en) | 2023-10-30 | 2023-10-30 | Online simulation testing device and method for elastic damping positioning wire clamp |
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| CN117346992B true CN117346992B (en) | 2024-05-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776393A (en) * | 2004-11-16 | 2006-05-24 | 西南交通大学 | Bow net analogue test method and its special device |
| CN202156310U (en) * | 2011-06-22 | 2012-03-07 | 广州市地下铁道总公司 | Overhead rigid contact net suspension system |
| CN112504704A (en) * | 2020-09-03 | 2021-03-16 | 北京交通大学 | High-speed railway bow net current-collecting technology scaling experiment platform |
| CN218750418U (en) * | 2022-11-15 | 2023-03-28 | 铁科院(北京)工程咨询有限公司 | Busbar for railway contact net |
| CN116858524A (en) * | 2023-09-01 | 2023-10-10 | 中铁建电气化局集团轨道交通器材有限公司 | Device and method for testing energy consumption performance of elastic damping positioning wire clamp |
-
2023
- 2023-10-30 CN CN202311416667.5A patent/CN117346992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776393A (en) * | 2004-11-16 | 2006-05-24 | 西南交通大学 | Bow net analogue test method and its special device |
| CN202156310U (en) * | 2011-06-22 | 2012-03-07 | 广州市地下铁道总公司 | Overhead rigid contact net suspension system |
| CN112504704A (en) * | 2020-09-03 | 2021-03-16 | 北京交通大学 | High-speed railway bow net current-collecting technology scaling experiment platform |
| CN218750418U (en) * | 2022-11-15 | 2023-03-28 | 铁科院(北京)工程咨询有限公司 | Busbar for railway contact net |
| CN116858524A (en) * | 2023-09-01 | 2023-10-10 | 中铁建电气化局集团轨道交通器材有限公司 | Device and method for testing energy consumption performance of elastic damping positioning wire clamp |
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| CN117346992A (en) | 2024-01-05 |
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