CN111301230A - Rigid suspension contact net structure - Google Patents
Rigid suspension contact net structure Download PDFInfo
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- CN111301230A CN111301230A CN202010128959.9A CN202010128959A CN111301230A CN 111301230 A CN111301230 A CN 111301230A CN 202010128959 A CN202010128959 A CN 202010128959A CN 111301230 A CN111301230 A CN 111301230A
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- contact
- elastic
- accommodating space
- connecting part
- elastic element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention provides a rigid suspension contact network structure, which comprises a bus bar, an elastic element, a contact line clamp and a contact line, wherein the bus bar is fixedly connected with the elastic element; the elastic element, the contact wire clamp and the contact wire are positioned below the busbar; the contact line clamps and the elastic elements are arranged at intervals along the length direction of the busbar and are in one-to-one correspondence; the contact wire clamp clamps the contact wire and is also connected with the elastic element; the elastic element is respectively connected with the busbar and the contact wire clamp, and the elastic element enables the contact wire clamp and the contact wire to move relative to the busbar through self elastic deformation, so that the contact force change of the pantograph net can be effectively reduced, and the rapid abrasion of the pantograph net and the off-line arc ablation are avoided; the contact force of the pantograph and the contact line in multiple directions can be reduced when the pantograph and the contact line vibrate, and stress generated by temperature change of the connecting part and the contact line clamp can be relieved.
Description
Technical Field
The invention relates to the technical field of urban rail transit contact networks, in particular to a rigid suspension contact network structure.
Background
The urban rail transit vehicle has high running speed and strong transportation capability, is vigorously developed and constructed in various major cities at present, and provides a great deal of convenience for daily travel of people.
The ground section rapid rail transit mostly adopts a flexible suspension contact net to supply power for a train, and the flexible suspension contact net is not generally adopted in a tunnel due to large required space. The rigid suspension contact net is a contact suspension mode mainly adopted in urban rail transit tunnels, has a simple structure and low clearance height, is convenient to operate and maintain, and is widely adopted in urban central subway tunnel lines.
Although a rigid suspension contact net is generally used in a subway tunnel, the overall rigidity of the rigid contact net is high, the pantograph vibration is aggravated along with the improvement of the running speed of a subway vehicle, the contact force between the pantograph nets is changed greatly, the pantograph abrasion and the offline arc ablation are aggravated, and the pantograph current collection quality is deteriorated. In addition, the temperature change easily causes the phenomenon of wire jumping of the contact wire, and the like, and threatens the safety of train operation.
Disclosure of Invention
The embodiment of the invention provides a rigid suspension contact net structure, which aims to solve the problems that electric arcs are generated by a pantograph-catenary offline under the condition of high-speed running of a train, the contact net is large in abrasion and the like in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme.
A rigid suspension contact network structure comprises a bus bar, an elastic element, a contact line clamp and a contact line; the elastic element, the contact wire clamp and the contact wire are positioned below the busbar;
the contact line clamps and the elastic elements are arranged at intervals along the length direction of the busbar and are in one-to-one correspondence; the contact wire clamp clamps the contact wire and is also connected with the elastic element;
the elastic element is respectively connected with the bus bar and the contact wire clamp, and the elastic element can enable the contact wire clamp and the contact wire to move relative to the bus bar through self elastic deformation.
Preferably, the elastic element comprises:
the first connecting part is internally provided with an accommodating space;
the elastic part is positioned in the accommodating space;
one side of the second connecting part extends into the accommodating space and is connected with the elastic part, and the other side of the second connecting part is connected with the contact wire clamp.
Preferably, the elastic part is one or more springs, and two ends of each spring are respectively connected with the first connecting part and the second connecting part; the second connecting part penetrates through the bottom of the first connecting part and extends into the accommodating space, and is connected with the first connecting part in a clamping mode.
Preferably, the elastic part is an elastic block, and the elastic block is in surface contact with the inner wall of the accommodating space and the second connecting part respectively; the second connecting part penetrates through the bottom of the first connecting part and extends into the accommodating space, and is connected with the first connecting part in a clamping mode.
Preferably, the second connection portion includes: the first body is positioned in the accommodating space and horizontally arranged, and the second body is vertically arranged, extends into the accommodating space and is connected with the first body.
Preferably, the second body penetrates through the accommodating space, the first body is positioned at the bottom of the accommodating space, and the elastic parts are elastic blocks which are respectively positioned in the accommodating space divided by the second body and are respectively in surface contact with the inner wall of the accommodating space and the first body; the second connecting portion is clamped with the first connecting portion through the first body.
Preferably, the first body and the second body partition the accommodating space; the elastic part is a plurality of elastic blocks which are respectively positioned in the accommodating space separated by the first body and the second body and are in surface contact with the inner wall of the accommodating space, the first body and the second body; the second connecting portion is clamped with the first connecting portion through the first body.
Preferably, the second body penetrates through the accommodating space, the first body is positioned in the middle of the accommodating space, and the elastic parts are a plurality of elastic blocks which are respectively positioned in the accommodating space divided by the first body and the second body and are in surface contact with the inner wall of the accommodating space, the first body and the second body; the second connecting portion is clamped with the first connecting portion through the first body.
Preferably, tension compensation is provided when arranging the contact line.
Preferably, the contact wire clip and the elastic element are arranged at intervals along the length direction of the bus bar, and the interval is as follows: 0.1m to 5 m.
According to the technical scheme provided by the embodiment of the invention, the rigid suspension contact network structure provided by the invention comprises a bus bar, an elastic element, a contact line clamp and a contact line; the elastic element, the contact wire clamp and the contact wire are positioned below the busbar; the contact line clamps and the elastic elements are arranged at intervals along the length direction of the busbar and are in one-to-one correspondence; the contact wire clamp clamps the contact wire and is also connected with the elastic element; the elastic element is respectively connected with the busbar and the contact wire clamp, and the elastic element enables the contact wire clamp and the contact wire clamped by the contact wire clamp to move relative to the busbar through self elastic deformation, so that the contact force change of the pantograph-catenary can be effectively reduced, and the rapid abrasion of the pantograph-catenary and the off-line arc ablation are avoided; the contact force of the pantograph and the contact line in multiple directions can be reduced when the pantograph and the contact line vibrate, and loss of the connecting portion and the contact line clamp caused by stress generated by temperature change can be reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a rigid suspended contact net structure according to the present invention;
FIG. 2 is a front view of a rigid suspended contact net structure according to the present invention;
FIG. 3 is a front cross-sectional view of a first embodiment of a rigid suspended contact net structure according to the present invention;
FIG. 4 is a front cross-sectional view of a second embodiment of a rigid suspended contact net structure according to the present invention;
FIG. 5 is a front cross-sectional view of a third embodiment of a rigid suspended contact net structure according to the present invention;
FIG. 6 is a front cross-sectional view of a fourth embodiment of a rigid suspended contact net structure according to the present invention;
FIG. 7 is a front cross-sectional view of a fifth embodiment of a rigid suspended contact net structure according to the present invention;
FIG. 8 is a graph of bow-net contact force obtained by simulation calculation under the conditions that the arrangement spacing of a certain elastic element is 0.5m, 0.75m and 1m respectively, and the running speed is 80 km/h;
FIG. 9 is a graph showing bow net contact force at a certain elastic element arrangement pitch of 0.5m and traveling speeds of 120km/h, 140km/h and 160 km/h.
In the figure:
1. the bus bar 2, the elastic element 21, the elastic part 22, the first connecting part 221, the accommodating space 23, the second connecting part 231, the first body 232, the second body 3, the contact wire clamp 4, the contact wire 5 and the electric connecting wire.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
Referring to fig. 1, the rigid suspension contact network structure provided by the invention comprises a busbar 1, an elastic element 2, a contact wire clamp 3 and a contact wire 4; the elastic element 2, the contact wire clamp 3 and the contact wire 4 are positioned below the busbar 1;
the contact line clamps 3 and the elastic elements 2 are arranged at intervals along the length direction of the busbar 1 and are in one-to-one correspondence; the contact wire clamp 3 clamps the contact wire 4 and is also connected with the elastic element 2; as shown, the elastic element 2 is located between the busbar 1 and the contact wire clamp 3;
the elastic element 2 is respectively connected with the busbar 1 and the contact wire clamp 3, when the pantograph acts on a contact network, the elastic element 2 can enable the contact wire clamp 3 and the contact wire 4 clamped by the contact wire clamp to move relative to the busbar 1 through self elastic deformation, and the contact force between the pantograph and the contact network is consumed through self elastic deformation, so that the change of the contact force of the pantograph is effectively reduced, and the rapid abrasion of the pantograph and the off-line arc ablation are avoided.
The rigid suspension contact net structure provided by the invention still adopts the installation mode of the rigid suspension contact net, and the busbar 1 is fixed at the top of the tunnel through an insulator; at a distance, an electrical connection 5 is provided between the busbar 1 and the contact wire 4, allowing the transmission of current to the contact wire 4, ensuring the power supply needs.
Further, as shown in fig. 2, the elastic member 2 includes:
a first connecting portion 22 having an accommodating space 221 therein; the structure of the hollow rectangular body can be specifically shown in the figure, and certainly, the structure is not limited to the hollow rectangular body, and for example, the structure can also be a hollow cylindrical structure;
an elastic part 21 located in the accommodating space 221;
one side of the second connecting part 23 extends into the accommodating space 221 and is connected with the elastic part 21, and the other side of the second connecting part is connected with the contact wire clamp 3; when the pantograph acts on the contact line, the elastic element 2 can make the second connecting part 23 drive the contact line clamp 4 and the contact line 4 clamped by the contact line clamp to move relative to the busbar 1 through self elastic deformation.
The applicant finds that in the interaction between the pantograph and the contact network, the pressure applied to the contact network by the pantograph is included, and the contact network and the pantograph are stressed due to the temperature change; wherein, the contact net is pressed by the pantograph more commonly; three embodiments are provided in the present invention, showing corresponding structures by way of example.
The first embodiment is as follows:
as shown in fig. 3, the elastic portion 21 is one or more springs (arranged in parallel), and both ends of the springs are respectively connected with the first connecting portion 22 and the second connecting portion 23; the second connecting portion 23 penetrates through the bottom of the first connecting portion 22, extends into the accommodating space 221, and is clamped with the first connecting portion 22; specifically, as shown in the figure, the cross section of the second connecting portion 23 is a T-shaped structure (formed by a T-shaped rectangular body or a circular/square plate structure with a column), and the top of the second connecting portion is clamped at the bottom of the accommodating space 221; when the pantograph acts on the contact line, the elastic element 2 makes the second connecting part 23 drive the contact line clamp 3 and the contact line 4 clamped by the contact line clamp to move relative to the busbar through the self elastic deformation of the elastic part 21, so that the abrasion between the contact line clamp and the pantograph is reduced.
Example two:
as shown in fig. 4, the elastic portion 21 is an elastic block, and the elastic block is in surface contact with the inner wall of the accommodating space 221 and the second connecting portion 23; the second connecting portion 23 penetrates through the bottom of the first connecting portion 22, extends into the accommodating space 221, and is clamped with the first connecting portion 22; specifically, as shown in the figure, the cross section of the second connecting portion 23 is a T-shaped structure (formed by a T-shaped rectangular body or a circular/square plate structure with a column), the top of the second connecting portion is clamped at the bottom of the accommodating space 221, and the elastic block is filled in the accommodating space 221 above the second connecting portion 23; when the pantograph acts on the contact line, the elastic element 2 makes the second connecting part 23 drive the contact line clamp 3 and the contact line 4 clamped by the contact line clamp to move relative to the busbar through the self elastic deformation of the elastic part 21, so that the pressure applied to the contact line is reduced.
Example three:
the second connection portion 23 includes: a first body 231 located in the accommodating space 221 and horizontally arranged, and a second body 232 vertically arranged to extend into the accommodating space 221 and connected with the first body 231;
further, in the above-mentioned case,
as shown in fig. 5, the second body 232 penetrates through the accommodating space 221, the first body 231 is located at the bottom of the accommodating space 221, and the elastic portions 21 are elastic blocks, respectively located in the accommodating space 221 partitioned by the second body 232 (i.e., on both sides of the second body 232 and above the first body 231), and respectively in surface contact with the inner wall of the accommodating space 221 and the first body 231; the elastic element 2 is clamped with the bus bar 1 through the first body 231; as in the previous embodiment, when the pantograph acts on the contact wire, the elastic element 2 causes the second connecting portion 23 to move the contact wire clip 3 and the contact wire 4 clamped by the contact wire clip by the elastic deformation of the elastic portion 21.
In the contact force between the pantograph and the contact network, the contact network and the stress generated by the pantograph due to temperature change are also included, and the superposition of the stress and the vibration of the pantograph and the contact network not only accelerates the loss of the structural life of the contact network, but also causes the pantograph to separate from the contact network to generate electric arc; to this end, in a fourth embodiment:
the second connection portion 23 includes, as in the embodiment: a first body 231 located in the accommodating space 221 and horizontally arranged, and a second body 232 vertically arranged to extend into the accommodating space 221 and connected with the first body 231;
as shown in fig. 6, the second connecting portion 23 has a T-shaped structure (formed by a T-shaped rectangular body or a circular/square plate structure with a pillar), and the first body 231 and the second body 232 separate the accommodating space 221; the elastic part 21 is a plurality of elastic blocks, respectively located in the accommodating space 221 (above the first body 231, below the first body 231 and on both sides of the second body 232) partitioned by the first body 231 and the second body 232, and in surface contact with the inner wall of the accommodating space 221, the first body 231 and the second body 232; the elastic element 2 is clamped with the bus bar 1 through the first body 231; when the pantograph acts on the contact line, the elastic element 2 makes the second connecting part 23 drive the contact line clamp 3 and the contact line 4 clamped by the contact line clamp to move relatively through the self elastic deformation of the elastic part 21, and the contact force between the pantograph and the contact line is consumed through the elastic block, so that the loss between the pantograph and the contact line is reduced.
In a fifth embodiment:
the second connection portion 23 includes, as in the embodiment: a first body 231 located in the accommodating space 221 and horizontally arranged, and a second body 232 vertically arranged to extend into the accommodating space 221 and connected with the first body 231;
as shown in fig. 7, the cross section of the second connecting portion 23 is a cross-shaped structure, the second body 232 penetrates through the accommodating space 221, the first body 231 is located in the middle of the accommodating space 221, and the elastic portion 21 is four elastic blocks, respectively located in the accommodating space 221 partitioned by the first body 231 and the second body 232, and in surface contact with the inner wall of the accommodating space 221, the first body 231 and the second body 232; the elastic element 2 is clamped with the bus bar 1 through the first body 231 and two elastic blocks below the first body; as in the previous embodiment, when the pantograph acts on the contact line, the elastic element 2 causes the second connecting portion 23 to move the contact line clamp 3 and the contact line 4 clamped by the contact line clamp by the elastic deformation of the elastic portion 21, and reduces the loss caused by the contact force between the pantograph and the contact line through the elastic block.
In the above two embodiments, the elastic block covers the second connecting portion 23 in the accommodating space 221, which functions to better bear the contact forces in multiple directions received by the pantograph and the contact line during vibration of the pantograph and the contact line, and also can alleviate/eliminate the loss caused by the stress superposition generated by the temperature change of the two connecting portions and the contact line clamp 3.
It will be understood by those skilled in the art that the above-described application of the elastic element 2 is merely exemplary, and that other existing or future types of structures of the elastic element 2, such as may be suitable for use in the embodiments of the present invention, are also included within the scope of the present invention and are hereby incorporated by reference.
In the above embodiments, the material selection of the elastic block includes, but is not limited to, a shock absorbing metal and rubber (metal rubber).
In the preferred embodiment provided by the invention, the distance between the contact wire clip 3 and the elastic element 2 arranged at intervals along the length direction of the bus bar is 0.1m to 5 m;
tension compensation can be set on the contact line 4 when the contact line 4 is erected on a contact net;
whether or not tension compensation is provided may be set by a person skilled in the art depending on the spacing of the plurality of contact wire clamps 3, the elastic element 2, for example, by not providing tension compensation to the contact wires 4 when the spacing is small and by providing tension compensation to the contact wires 4 when the spacing is large.
The invention also provides an embodiment, simulation parameters are set according to the parameters of the rigid suspension overhead line system shown in the table 1 and the parameters of the SBS81 type pantograph shown in the table 2, and a pantograph-catenary coupling model is established through commercial simulation software MSC.
TABLE 1 parameters of the catenary
TABLE 2SBS81 model Pantograph parameters
Under the conditions that the arrangement intervals of certain elastic elements are 0.5m, 0.75m and 1m respectively, and the running speed is 80km/h, a bow net contact force curve is obtained through simulation calculation and is shown in fig. 8.
The contact force curve of the pantograph was set at a certain elastic element arrangement pitch of 0.5m and at running speeds of 120km/h, 140km/h and 160km/h, as shown in FIG. 9.
Therefore, under the condition that the running speed of the train is increased, the novel rigid catenary can ensure good current receiving quality among bow nets, and particularly when the arrangement distance of the novel rigid catenary is 0.5m, the change of contact force is minimum.
In summary, the rigid suspension contact network structure provided by the invention comprises a bus bar, an elastic element, a contact wire clamp and a contact wire; the elastic element, the contact wire clamp and the contact wire are positioned below the busbar; the contact line clamps and the elastic elements are arranged at intervals along the length direction of the busbar and are in one-to-one correspondence; the contact wire clamp clamps the contact wire and is also connected with the elastic element; the elastic element is respectively connected with the busbar and the contact wire clamp, and the elastic element enables the contact wire clamp and the contact wire clamped by the contact wire clamp to move relative to the busbar through self elastic deformation, so that the contact force change of the pantograph-catenary can be effectively reduced, and the rapid abrasion of the pantograph-catenary and the off-line arc ablation are avoided; the contact force of the pantograph and the contact line in multiple directions can be reduced when the pantograph and the contact line vibrate, and the loss of stress generated by temperature change of the connecting part and the contact line clamp to the connecting part and the contact line clamp can be reduced.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A rigid suspension contact network structure is characterized by comprising a bus bar, an elastic element, a contact line clamp and a contact line; the elastic element, the contact wire clamp and the contact wire are positioned below the busbar;
the contact line clamps and the elastic elements are arranged at intervals along the length direction of the busbar and are in one-to-one correspondence; the contact wire clamp clamps the contact wire and is also connected with the elastic element;
the elastic element is respectively connected with the bus bar and the contact wire clamp, and the elastic element can enable the contact wire clamp and the contact wire to move relative to the bus bar through self elastic deformation.
2. The rigid suspended contact net structure according to claim 1, wherein the elastic element comprises:
the first connecting part is internally provided with an accommodating space;
the elastic part is positioned in the accommodating space;
one side of the second connecting part extends into the accommodating space and is connected with the elastic part, and the other side of the second connecting part is connected with the contact wire clamp.
3. The rigid suspended contact net structure according to claim 2, wherein the elastic portion is one or more springs, both ends of which are connected to the first connecting portion and the second connecting portion, respectively; the second connecting part penetrates through the bottom of the first connecting part, extends into the accommodating space and is connected with the first connecting part in a clamping mode.
4. The rigid suspended contact net structure according to claim 2, wherein the elastic part is an elastic block, and the elastic block is in surface contact with the inner wall of the accommodating space and the second connecting part respectively; the second connecting part penetrates through the bottom of the first connecting part, extends into the accommodating space and is connected with the first connecting part in a clamping mode.
5. The rigid suspended contact net structure of claim 2, wherein the second connection portion comprises: the first body is positioned in the accommodating space and is horizontally arranged, and the second body is vertically arranged, extends into the accommodating space and is connected with the first body.
6. The rigid suspended contact net structure according to claim 5, wherein the second body penetrates through the accommodating space, the first body is located at the bottom of the accommodating space, and the elastic parts are elastic blocks respectively located in the accommodating spaces partitioned by the second body and respectively in surface contact with the inner walls of the accommodating spaces and the first body; the second connecting part is clamped with the first connecting part through the first body.
7. The rigid suspended contact net structure according to claim 5, wherein the first body and the second body separate the accommodation space; the elastic part is a plurality of elastic blocks which are respectively positioned in the accommodating space separated by the first body and the second body and are in surface contact with the inner wall of the accommodating space and the first body and the second body; the second connecting part is clamped with the first connecting part through the first body.
8. The rigid suspended contact net structure according to claim 5, wherein the second body penetrates through the accommodating space, the first body is located in the middle of the accommodating space, and the elastic parts are a plurality of elastic blocks which are respectively located in the accommodating space divided by the first body and the second body and are in surface contact with the inner wall of the accommodating space and the first body and the second body; the second connecting part is clamped with the first connecting part through the first body.
9. A rigid suspended contact net structure according to any of claims 1 to 8, wherein tension compensation is provided when arranging the contact lines.
10. The rigid suspended contact grid structure according to any of claims 1 to 8, wherein the contact wire clamps are spaced from the resilient elements along the length of the busbar by a distance of: 0.1m to 5 m.
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| CN202010128959.9A CN111301230B (en) | 2020-02-28 | 2020-02-28 | Rigid suspension contact net structure |
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| CN202010128959.9A CN111301230B (en) | 2020-02-28 | 2020-02-28 | Rigid suspension contact net structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230209A (en) * | 1977-10-20 | 1980-10-28 | Japanese National Railways | Means of stringing trolley wires |
| JPS5893628A (en) * | 1981-11-30 | 1983-06-03 | Sanwa Tekki Corp | Vertically moving type curved wire puller |
| DE19517806A1 (en) * | 1995-05-15 | 1996-11-21 | Armin Mylaeus | Overhead conductor for electric trains with lower vibration amplitude and contact forces |
| CN201800565U (en) * | 2010-09-01 | 2011-04-20 | 李雷 | High-damping rigid suspension catenary |
| CN108973782A (en) * | 2018-07-04 | 2018-12-11 | 北京交通大学 | City rail traffic rigid flexible system hangs contact net |
| CN110329115A (en) * | 2019-07-18 | 2019-10-15 | 天津益昌电气设备股份有限公司 | Electrified track traffic damping rigid contact net |
-
2020
- 2020-02-28 CN CN202010128959.9A patent/CN111301230B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230209A (en) * | 1977-10-20 | 1980-10-28 | Japanese National Railways | Means of stringing trolley wires |
| JPS5893628A (en) * | 1981-11-30 | 1983-06-03 | Sanwa Tekki Corp | Vertically moving type curved wire puller |
| DE19517806A1 (en) * | 1995-05-15 | 1996-11-21 | Armin Mylaeus | Overhead conductor for electric trains with lower vibration amplitude and contact forces |
| CN201800565U (en) * | 2010-09-01 | 2011-04-20 | 李雷 | High-damping rigid suspension catenary |
| CN108973782A (en) * | 2018-07-04 | 2018-12-11 | 北京交通大学 | City rail traffic rigid flexible system hangs contact net |
| CN110329115A (en) * | 2019-07-18 | 2019-10-15 | 天津益昌电气设备股份有限公司 | Electrified track traffic damping rigid contact net |
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|---|---|
| CN111301230B (en) | 2022-09-27 |
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