CN113978317A - Double-clamp type insulation piece between lower anchor wires for additional wires of contact network - Google Patents
Double-clamp type insulation piece between lower anchor wires for additional wires of contact network Download PDFInfo
- Publication number
- CN113978317A CN113978317A CN202111318950.5A CN202111318950A CN113978317A CN 113978317 A CN113978317 A CN 113978317A CN 202111318950 A CN202111318950 A CN 202111318950A CN 113978317 A CN113978317 A CN 113978317A
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- Prior art keywords
- insulating
- lower anchor
- wires
- disc
- double
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- 238000009413 insulation Methods 0.000 title claims abstract description 9
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000012212 insulator Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- 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
- B60M1/18—Section insulators; Section switches
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The double-clamp type lower anchor stay wire insulation piece for the additional lead of the contact network effectively avoids the long-term discharge phenomenon formed in a high-voltage and humid environment due to insufficient clearance between the stay wires, reduces the risk of electric burning loss of the lower anchor stay wire, and improves the railway operation safety. The device comprises an insulating disc arranged between the intersection of two lower anchor pull wires, and the insulating disc is connected with a clamping device which is fixedly arranged on the lower anchor pull wires at two sides through an insulating component.
Description
Technical Field
The invention relates to an electrified railway, in particular to an insulating part for blocking a current path between lower anchor pull wires for an additional lead of a contact network in the electrified railway.
Background
The additional conductor of the contact network is an important component of the electrified railway, is generally erected along the same pole of the contact network along a line, and is divided into a plurality of sections which have certain lengths and are mutually independent in order to meet the requirements of power supply and mechanical stress, and the tail end of each section is generally anchored on a support column of the contact network. Because the additional wires of the contact network are all arranged with tension, certain additional bending moment can be brought to the strut at the lower anchor part, so that the load borne by the strut is increased, in order to offset the bending moment applied by the additional wires of the contact network on the strut of the contact network and reduce the load on the strut and the foundation of the strut, a lower anchor stay wire is generally arranged at the lower anchor strut along the line direction so as to achieve the effect of stress balance of the strut, and the stay wire material generally adopts a zinc-5% aluminum-mixed rare earth alloy coated steel strand (GB/T20492-2019).
The contact net additional lead is the same as the contact net lead and is a charged body in a working state, when the additional lead has lightning protection and backflow grounding functions, the additional lead is generally suspended between the additional lead and a contact net support in an uninsulated mounting mode, namely when the contact net support adopts a steel column type, the steel column can be used as a part of backflow grounding, and current on the additional lead can flow into the ground through the contact net steel column. Similarly, at the steel column with the lower anchoring pull wire, because the pull wire is made of rare earth alloy material and has conductivity, the current on the additional lead can flow into the ground through the pull wire.
In railway junction places such as stations and vehicle sections, the additional wire anchor section of the contact network can be increased along with the increase of the number of railway tracks, and the number of corresponding stay wires can also be increased. Under the influence of line space, the condition that the anchor stay wires on two sides are mutually crossed frequently exists in the same space, and the limit of the width of the roadbed is added, so that the gap between the stay wires is small, the discharge phenomenon is easily formed in the process that current flows into the ground through the stay wires under the high-voltage and humid environment, and the anchor stay wires can be burnt and corroded for a long time.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-clamp type insulation piece between lower anchor guy wires for additional lead wires of a contact network, so as to effectively avoid the long-term discharge phenomenon formed in a high-voltage and humid environment due to insufficient gaps between the guy wires, reduce the risk of burning the lower anchor guy wires by electricity and improve the railway operation safety.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to a double-clamp type lower anchor stay wire insulating part for an additional lead of a contact network, which is characterized in that: the device comprises an insulating disc arranged between the intersection of two lower anchor pull wires, and the insulating disc is connected with a clamping device which is fixedly arranged on the lower anchor pull wires at two sides through an insulating component.
The insulating member is an insulating spring arranged at the central part of the insulating disc, and two ends of the insulating spring respectively extend outwards along the axial direction of the insulating disc.
The invention has the advantages that the insulating disc is fixedly arranged between the intersection of the two lower anchor wires, so that the long-term discharge phenomenon formed in a high-voltage and humid environment due to insufficient clearance between the lower anchor wires can be effectively avoided, the risk of electric burning loss of the lower anchor wires is reduced, and the railway operation safety is ensured; simple structure, convenient installation and reliable performance.
Drawings
The specification includes the following two drawings:
FIG. 1 is a schematic view of an embodiment of a double-clamp type lower anchor stay wire insulating part for an additional lead of a contact network;
FIG. 2 is a semi-sectional view of a double-clamp type lower anchor stay wire insulator for an additional lead of the overhead contact system of the invention;
component names and corresponding labels shown in the figures: the anchor wire 10, the insulating disc 20, the insulating spring 21, the clamping device 30, the insulating splint 31, the insulating cover plate 32, the bolt coupling subassembly 33.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1 and 2, the double-clamp type lower anchor wire insulator for an additional conductor of a contact network of the present invention includes an insulating disc 20 disposed between the intersections of two lower anchor wires 10, and the insulating disc 20 is connected to a clamping device 30 mounted and fixed on the lower anchor wires 10 on both sides through an insulating member. The long-term discharge phenomenon formed in a high-voltage and humid environment due to insufficient gaps between the lower anchor stay wires can be effectively avoided through the insulating disc 20, the risk that the lower anchor stay wires are burnt by electricity is reduced, and the railway operation safety is ensured.
Referring to fig. 1, the disc surface of the insulating disc 20 is circular, the thickness of the insulating disc is gradually reduced from the center to the edge, and the diameter of the insulating disc 20 is determined according to the actual situation of the respective circuit engineering. In order to facilitate installation and better adapt to different distances at the intersection of the two lower anchor wires 10, the insulating member is an insulating spring 21 arranged at the central part of the insulating disc 20, and two ends of the insulating spring 21 respectively extend outwards along the axial direction of the insulating disc 20 towards two sides.
Referring to fig. 2, the clamping device 30 is composed of an insulating clamping plate 31, an insulating cover plate 32 and a bolt connecting assembly 33, and the insulating spring 21 is integrally connected with the insulating disc 20 and the insulating cover plate 32. Grooves on the inner side surfaces of the insulating clamping plates 31 and the insulating cover plates 32 form a holding manner on the anchor stay wires 10, bolt connecting assemblies 33 arranged on two sides of each groove at intervals are connected with the insulating clamping plates 31 and the insulating cover plates 32, and the clamping devices 30 are installed and fixed on the lower anchor stay wires 10.
The bolt connection assembly 33 generally includes a bolt, a nut, and a backstop washer.
The foregoing is illustrative of the principles of the double clamp type lower anchor wire insulator for an attachment wire of a catenary of the invention and is not intended to limit the invention to the exact construction and application shown and described, and accordingly all modifications and equivalents that may be employed are intended to fall within the scope of the invention.
Claims (4)
1. The overhead line system attaches wire and anchors wire insulating part under with two clamp types, characterized by: the device comprises an insulating disc (20) arranged between the intersections of two lower anchor pull wires (10), wherein the insulating disc (20) is connected with a clamping device (30) which is arranged and fixed on the lower anchor pull wires (10) at two sides through an insulating component.
2. The double-clamp type lower anchor stay wire insulating part for the additional lead of the contact network as claimed in claim 1, which is characterized in that: the insulation component is an insulation spring (21) arranged at the center of the insulation disc (20), and two ends of the insulation spring (21) extend outwards along the axial direction of the insulation disc (20) respectively.
3. The double-clamp type lower anchor stay wire insulating part for the additional lead of the contact network as claimed in claim 2, which is characterized in that: the disc surface of the insulating disc (20) is circular, and the thickness of the insulating disc is gradually reduced from the center to the edge.
4. The double-clamp type lower anchor stay wire insulating part for the additional lead of the contact network as claimed in claim 2, which is characterized in that: the clamping device (30) is composed of an insulating clamping plate (31), an insulating cover plate (32) and a bolt connecting assembly (33), and the insulating spring (21) is connected with the insulating disc (20) and the insulating cover plate (32) into a whole; grooves in the inner side faces of the insulating clamping plate (31) and the insulating cover plate (32) are used for embracing the lower anchor stay wire (10), bolt connecting assemblies (33) arranged on the two sides of the grooves at intervals are connected with the insulating clamping plate (31) and the insulating cover plate (32), and the clamping device (30) is installed and fixed on the lower anchor stay wire (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318950.5A CN113978317A (en) | 2021-11-09 | 2021-11-09 | Double-clamp type insulation piece between lower anchor wires for additional wires of contact network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318950.5A CN113978317A (en) | 2021-11-09 | 2021-11-09 | Double-clamp type insulation piece between lower anchor wires for additional wires of contact network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113978317A true CN113978317A (en) | 2022-01-28 |
Family
ID=79747344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111318950.5A Pending CN113978317A (en) | 2021-11-09 | 2021-11-09 | Double-clamp type insulation piece between lower anchor wires for additional wires of contact network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113978317A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB824415A (en) * | 1957-04-23 | 1959-12-02 | British Insulated Callenders | Improvements in or relating to section insulators for use in overhead conductors of electric traction systems |
| DE975821C (en) * | 1948-12-25 | 1962-10-11 | Elin Union Ag | Section separator for overhead lines for electric railways |
| JPH08230521A (en) * | 1995-02-28 | 1996-09-10 | Sumitomo Electric Ind Ltd | Insulated trolley anchoring device |
| CN102856868A (en) * | 2012-10-12 | 2013-01-02 | 江苏祥源电气设备有限公司 | Composite insulator spacer repeated movement type shockproof ice coating reducing device |
| CN203589658U (en) * | 2013-11-28 | 2014-05-07 | 国家电网公司 | Spring damping type interphase anti-galloping spacer |
| CN103928891A (en) * | 2014-03-25 | 2014-07-16 | 国家电网公司 | Double-spring end vibration absorbing type interphase spacer |
| CN206264818U (en) * | 2016-12-23 | 2017-06-20 | 中铁建电气化局集团南方工程有限公司 | Motor-car is used and overhauls section insulator suspended structure in storehouse |
| CN107097688A (en) * | 2017-05-25 | 2017-08-29 | 中铁第五勘察设计院集团有限公司 | A kind of contact net additive wire slidingtype insulation gap bar device |
| CN208478035U (en) * | 2018-08-15 | 2019-02-05 | 王敏超 | A kind of cap button insulator |
| CN210091824U (en) * | 2019-07-10 | 2020-02-18 | 江西省萍乡市山水电瓷电器有限公司 | Insulator with damping device |
| CN111469716A (en) * | 2020-05-29 | 2020-07-31 | 兰州交通大学 | Additional lead anti-galloping device of electrified railway contact network |
-
2021
- 2021-11-09 CN CN202111318950.5A patent/CN113978317A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975821C (en) * | 1948-12-25 | 1962-10-11 | Elin Union Ag | Section separator for overhead lines for electric railways |
| GB824415A (en) * | 1957-04-23 | 1959-12-02 | British Insulated Callenders | Improvements in or relating to section insulators for use in overhead conductors of electric traction systems |
| JPH08230521A (en) * | 1995-02-28 | 1996-09-10 | Sumitomo Electric Ind Ltd | Insulated trolley anchoring device |
| CN102856868A (en) * | 2012-10-12 | 2013-01-02 | 江苏祥源电气设备有限公司 | Composite insulator spacer repeated movement type shockproof ice coating reducing device |
| CN203589658U (en) * | 2013-11-28 | 2014-05-07 | 国家电网公司 | Spring damping type interphase anti-galloping spacer |
| CN103928891A (en) * | 2014-03-25 | 2014-07-16 | 国家电网公司 | Double-spring end vibration absorbing type interphase spacer |
| CN206264818U (en) * | 2016-12-23 | 2017-06-20 | 中铁建电气化局集团南方工程有限公司 | Motor-car is used and overhauls section insulator suspended structure in storehouse |
| CN107097688A (en) * | 2017-05-25 | 2017-08-29 | 中铁第五勘察设计院集团有限公司 | A kind of contact net additive wire slidingtype insulation gap bar device |
| CN208478035U (en) * | 2018-08-15 | 2019-02-05 | 王敏超 | A kind of cap button insulator |
| CN210091824U (en) * | 2019-07-10 | 2020-02-18 | 江西省萍乡市山水电瓷电器有限公司 | Insulator with damping device |
| CN111469716A (en) * | 2020-05-29 | 2020-07-31 | 兰州交通大学 | Additional lead anti-galloping device of electrified railway contact network |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220128 |
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| RJ01 | Rejection of invention patent application after publication |