CN107097688B - Sliding type insulating spacer device for additional wires of contact net - Google Patents
Sliding type insulating spacer device for additional wires of contact net Download PDFInfo
- Publication number
- CN107097688B CN107097688B CN201710379025.0A CN201710379025A CN107097688B CN 107097688 B CN107097688 B CN 107097688B CN 201710379025 A CN201710379025 A CN 201710379025A CN 107097688 B CN107097688 B CN 107097688B
- Authority
- CN
- China
- Prior art keywords
- insulating spacer
- wires
- preformed
- guide wheel
- additional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
-
- 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
- B60M1/16—Suspension insulators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Communication Cables (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a sliding type insulating spacer device for additional wires of a contact net, which is arranged on a preformed armor rod (5), wherein the lower end of the sliding type insulating spacer device is provided with additional wires (4) for insulating the wires at intervals, and the sliding type insulating spacer device comprises a guide wheel group (1), an insulating spacer (2) and a preformed suspension clamp (3); the guide wheel set (1) is hung on the preformed armor rod (5) and slides, the upper end of the insulating spacer rod (2) is hinged with the guide wheel set (1), the lower end of the insulating spacer rod (2) is hinged with the preformed suspension clamp (3), and the preformed suspension clamp (3) clamps the additional wire (4). The problems of large swing of the additional wires vertically arranged in the electrified contact net of the wind area and short circuit caused by insufficient insulation distance between the two wires are solved, vibration swing is effectively reduced, wire fatigue and abrasion of connecting parts are relieved, and the problems of torsion and the like caused by different amounts of fluctuation caused by different wire expansion of two different specifications are effectively avoided by a sliding design.
Description
Technical Field
The invention relates to the technical fields of mechanical structures and traffic engineering, in particular to the technical field of railway electrification contact networks, and particularly relates to a contact network additional wire sliding type insulation spacer device.
Background
The common area (here, the common area refers to a windless area or a non-wind area, which cannot influence the railway contact network), the railway contact network has different voltages or double additional wires with the same voltage, the double additional wires of different loops are vertically arranged, and wind deflection can occur in the operation process to cause insufficient insulation distance. In the northwest strong wind area or in the coastal railway AT power supply mode, the situation that two additional wires vibrate greatly and the amplitude frequency is opposite frequently happens when the vibration between the positive feeder and the protection wire which are arranged on the same pole is frequent, the tripping accident caused by insufficient insulation distance between the additional wires is extremely easy to cause, and the normal operation of the locomotive is seriously influenced.
When the small curve section in the common area is subjected to the action of strong wind, the suspension device swings relatively much in the direction perpendicular to the line direction, and the short circuit trip caused by insufficient distance between the positive feeder line and the protection line can also be caused, and the accident Zheng Xigao iron and the Lanxin high-speed rail occur. The excessive swing and the high frequency increase the relative movement area and wear aging between parts, accelerate the wear between the connected parts and cause the accumulated fatigue fracture of the connected parts in a short period.
The common fixed type spacer is arranged between two additional wires such as a positive feeder and a protective wire or two wires, when the wires are different in expansion along the direction of the wires due to temperature difference, or the direction of action of strong wind has an included angle with the direction of the wires, the common fixed type spacer can twist, and the common fixed type spacer and the fixed ends of the wires are repeatedly bent to cause fatigue fracture of fixed points of the wires.
The northwest area has bad natural conditions, less human smoke and more gobi; the wind direction of the wind area is stable and the wind rising speed is high; strong wind power, and extremely high wind speed exceeding 60m/s; the wind period is long, and the number of days of high wind above 8 levels is more than 100 days on average; the duration of the strong wind is long, and the duration of the strong wind process of 12 grades and above is 40 hours at most; in coastal areas, sea wind and tornado can often land, wind direction and instability are very easy to generate torsion, so that vibration frequencies of a vertically arranged positive feeder and a protection wire are rapidly changed, and accidents such as wire winding and twisting can occur.
Disclosure of Invention
The invention aims to provide a sliding type insulating spacer device for an additional wire of a contact net, which solves the problems of large swing of the additional wire vertically arranged in the electrified contact net of a wind area high-speed railway and short circuit caused by insufficient insulating distance between two wires, effectively reduces vibration swing, relieves fatigue of the wires and abrasion of connecting parts, and effectively avoids the problems of torsion and the like caused by different fluctuation caused by different wire expansion of two wires with different specifications by sliding design.
The invention aims at realizing the following technical scheme:
the sliding type insulating spacer device for the additional wires of the overhead contact system is arranged on a preformed armor rod 5, and an additional wire 4 is arranged at the lower end of the sliding type insulating spacer device for insulating the wires, and comprises a guide wheel group 1, an insulating spacer 2 and a preformed suspension clamp 3;
the guide wheel set 1 is hung on the preformed armor rod 5 to slide, the upper end of the insulating spacer 2 is hinged with the guide wheel set 1, the lower end of the insulating spacer 2 is hinged with the preformed suspension clamp 3, and the preformed suspension clamp 3 clamps the additional lead 4.
The guide wheel set 1 comprises a frame 11, two upper pulleys 12, two lower pulleys 13 and four pulley pin shafts 14; the two upper pulleys 12 and the two lower pulleys 13 are symmetrically arranged in the frame 11 through four pulley pin shafts 14; the preformed armor rod 5 is passed between two upper pulleys 12 and two lower pulleys 13.
The lower end of the frame 11 is hinged with the upper end of the insulating spacer 2 through an upper bolt pin 6.
The middle part of the insulating spacer rod 2 is organically combined with an insulator 21, and two ends of the insulating spacer rod are provided with metal die forgings 22.
According to the technical scheme provided by the invention, the sliding type insulating spacer device for the additional wires of the overhead contact system solves the problems of large swing of the additional wires vertically arranged in the overhead contact system of the high-speed railway in a wind area and short circuit caused by insufficient insulating distance between the two wires, effectively reduces vibration swing, relieves wire fatigue and abrasion of connecting parts, and effectively avoids the problems of torsion and the like caused by different amounts of fluctuation caused by different wire expansion of two wires due to sliding design.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a sliding insulating spacer device for an additional wire of a catenary according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a guide wheel set structure of a sliding insulating spacer device for an additional wire of a contact network according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a guide wheel set of the sliding insulating spacer device for an additional wire of the overhead contact system according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, an additional conductor sliding insulation spacer device for a contact net is arranged on a preformed armor rod 5, an additional conductor 4 is arranged AT the lower end of the additional conductor and used for insulation between interval conductors, and the device can be particularly used for interval action of large-interval split conductors between different loops and different voltages and the like, mainly used between a positive feeder and a protective wire in an AT power supply mode of the contact net, between double-loop power supply wires, particularly suitable for interval conductors with different linear expansions caused by different specifications and temperature differences, and the sliding upper end of the additional conductor can compensate the movement quantity and avoid torsion.
Structurally, the device comprises a guide wheel set 1, an insulating spacer bar 2 and a preformed suspension clamp 3; the guide wheel set 1 is hung on the preformed armor rod 5 to slide, the upper end of the insulating spacer 2 is hinged with the guide wheel set 1, the lower end of the insulating spacer 2 is hinged with the preformed suspension clamp 3, and the preformed suspension clamp 3 is specifically hinged with the preformed suspension clamp through the lower bolt pin 7 to clamp the additional lead 4. The preformed suspension clamp 3 is of a double-lug structure, and is made of cast aluminum alloy materials and is used for clamping and installing the additional wires 4.
In addition, the guide wheel set 1 comprises a frame 11, two upper pulleys 12, two lower pulleys 13 and four pulley pins 14; the frame 11 is formed by processing steel plates, has a material strength not lower than Q235B, and is arranged bilaterally symmetrically. The wheel bodies of the four pulleys can be made of nylon 66, the process is an injection molding process, the wheel bodies can also be made of ZL114, and the manufacturing process is precision casting. And a rolling bearing 15 is arranged inside the bearing to reduce friction. The two upper pulleys 12 and the two lower pulleys 13 are symmetrically arranged in the frame 11 through four pulley pin shafts 14; the preformed armor rod 5 is passed between two upper pulleys 12 and two lower pulleys 13. The lower end of the frame 11 forms double ears, and the double ears of the lower end of the frame 11 are hinged with the upper ends of the insulating spacer bars 2 through upper bolt pins 6.
Meanwhile, an insulator 21 is organically synthesized in the middle of the insulating spacer 2, and metal die forgings 22 are arranged at two ends. The metal die forging 22 adopts a die forging of 35# steel, the metal die forging 22 is of a single-lug structure, and the metal die forging 22 at two ends is respectively hinged with the guide wheel group 1 and the preformed suspension clamp 3. The strength of the material is not lower than that of 35# steel.
The device has the following advantages:
1. with insulating spacing, connecting two additional wires 4 arranged vertically, such as a positive feeder and a protection wire or a two-wire supply wire. The device can effectively avoid the defect of insufficient insulation distance of the double-branch wires caused by wind swing amplitude difference, can also restrict the double-branch wires to each other, reduces the swing quantity of the double-branch wires, and has high electrical and mechanical safety reliability and small maintenance workload.
2. The symmetrical pulley block device is connected with the upper preformed armor rod 5, the preformed armor rod 5 passes through the upper pulley and the lower pulley, and the preformed armor rod 5 can freely move. The cable-stayed cable pulley block can compensate the cable-stayed difference of the double pre-twisted cable-stayed cable 5, can effectively avoid the damage of the fixed end and the fatigue of the lead caused by the torsion of the insulating spacer under the action of strong wind, and has the unloading function.
3. The maximum degree of relaxation of the double pre-twisted guard line 5 under the action of strong wind is in an effective safety distance, so that the vibration frequency is mutually restricted and weakened, and the abrasion among connecting parts can be greatly reduced.
4. The problem that the distance between the double additional wires 4 and other equipment, wire insulation live bodies or grounding bodies is insufficient due to overlarge swing can be effectively avoided, tripping accidents are reduced to the minimum, and operation and maintenance efficiency is improved.
5. The safety and reliability are high, the maintenance and operation management are convenient, the wind resistance effect is good, and the device is suitable for hanging additional wires in a strong wind area.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (1)
1. The sliding type insulating spacer device for the additional wires of the overhead contact system is arranged on a preformed armor rod (5), and the lower end of the sliding type insulating spacer device is provided with the additional wires (4) for insulating the wires, and is characterized by comprising a guide wheel group (1), an insulating spacer (2) and a preformed suspension clamp (3);
the guide wheel set (1) is hung on the preformed armor rod (5) to slide, the upper end of the insulating spacer (2) is hinged with the guide wheel set (1), the lower end of the insulating spacer (2) is hinged with the preformed suspension clamp (3), and the preformed suspension clamp (3) clamps the additional wire (4);
the guide wheel set (1) comprises a frame (11), two upper pulleys (12), two lower pulleys (13) and four pulley pins (14); the two upper pulleys (12) and the two lower pulleys (13) are symmetrically arranged in the frame (11) left and right through four pulley pin shafts (14);
the preformed armor rod (5) passes through the space between the two upper pulleys (12) and the two lower pulleys (13), the preformed armor rod (5) can freely move, the material of the wheel bodies of the four pulleys adopts nylon 66, and the process is an injection molding process;
the lower end of the frame (11) is hinged with the upper end of the insulating spacer (2) through an upper bolt pin (6);
the middle part of the insulating spacer rod (2) is organically combined with an insulator (21), and the two ends of the insulating spacer rod are provided with metal die forgings (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379025.0A CN107097688B (en) | 2017-05-25 | 2017-05-25 | Sliding type insulating spacer device for additional wires of contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379025.0A CN107097688B (en) | 2017-05-25 | 2017-05-25 | Sliding type insulating spacer device for additional wires of contact net |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107097688A CN107097688A (en) | 2017-08-29 |
| CN107097688B true CN107097688B (en) | 2023-08-18 |
Family
ID=59670433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379025.0A Active CN107097688B (en) | 2017-05-25 | 2017-05-25 | Sliding type insulating spacer device for additional wires of contact net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107097688B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978317A (en) * | 2021-11-09 | 2022-01-28 | 中铁二院工程集团有限责任公司 | Double-clamp type insulation piece between lower anchor wires for additional wires of contact network |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456074A (en) * | 1992-06-02 | 1995-10-10 | Sharpe; Robert F. | Method for unwrapping subconductors |
| CN201054486Y (en) * | 2007-04-23 | 2008-04-30 | 李建国 | Throw-protector for split lead |
| CN102545100A (en) * | 2012-01-19 | 2012-07-04 | 福建省电力有限公司厦门电业局 | Live installation tool for space bar of twin-bundled conductor |
| CN202495706U (en) * | 2012-01-19 | 2012-10-17 | 福建省电力有限公司厦门电业局 | Electrified installation tool for double split conductor spacer |
| CN103001141A (en) * | 2012-09-03 | 2013-03-27 | 辽宁省电力有限公司鞍山供电公司 | Method for mounting anti-waving spacers on 66-kilovolt power transmission hot-line |
| CN204161148U (en) * | 2014-07-04 | 2015-02-18 | 北京盈电电气有限公司 | The anti-dancing device of electrified railway strong wind district additive wire |
| CN206734105U (en) * | 2017-05-25 | 2017-12-12 | 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 |
-
2017
- 2017-05-25 CN CN201710379025.0A patent/CN107097688B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456074A (en) * | 1992-06-02 | 1995-10-10 | Sharpe; Robert F. | Method for unwrapping subconductors |
| CN201054486Y (en) * | 2007-04-23 | 2008-04-30 | 李建国 | Throw-protector for split lead |
| CN102545100A (en) * | 2012-01-19 | 2012-07-04 | 福建省电力有限公司厦门电业局 | Live installation tool for space bar of twin-bundled conductor |
| CN202495706U (en) * | 2012-01-19 | 2012-10-17 | 福建省电力有限公司厦门电业局 | Electrified installation tool for double split conductor spacer |
| CN103001141A (en) * | 2012-09-03 | 2013-03-27 | 辽宁省电力有限公司鞍山供电公司 | Method for mounting anti-waving spacers on 66-kilovolt power transmission hot-line |
| CN204161148U (en) * | 2014-07-04 | 2015-02-18 | 北京盈电电气有限公司 | The anti-dancing device of electrified railway strong wind district additive wire |
| CN206734105U (en) * | 2017-05-25 | 2017-12-12 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107097688A (en) | 2017-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201466635U (en) | Insulating tower head of composite insulating pole tower | |
| CN101834424B (en) | Method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines and lightning arrester support | |
| CN101672124B (en) | Compound material pole tower | |
| CN107097688B (en) | Sliding type insulating spacer device for additional wires of contact net | |
| CN102287070A (en) | Z-shaped side slope tower | |
| CN108365585A (en) | A kind of anti-lightning strike break wire device of transmission line of electricity | |
| CN204754412U (en) | Same terminal pole of two telegram in reply cables at present of unilateral cross arm | |
| CN105113841B (en) | A kind of 35kV double loops cast composite material pole tower | |
| CN103997007B (en) | The inclined to one side arc protection device of a kind of power transmission line wind | |
| CN104228611A (en) | Contact line clamp, dropper and contact suspension | |
| CN204966180U (en) | Single string of point of V type pair quadripartion cluster that dangles | |
| CN206734105U (en) | A kind of contact net additive wire slidingtype insulation gap bar device | |
| RU95173U1 (en) | INSULATING CROSS | |
| CN203951135U (en) | The inclined to one side arc protection device of a kind of power transmission line wind | |
| CN209492414U (en) | Contact net additive wire suspension arrangement and catenary mast device | |
| US3829630A (en) | Trolley wire suspension for use in overhead contact wire system of electric transport | |
| CN202839155U (en) | Single-hanging-point single-wire-clamp duplex V-shaped composite insulator string for +/-500kV same-tower double-circuit lines | |
| CN202948791U (en) | Dual-hanging point dual-cable clamp duplex V-shaped combination insulator chain for +/-500-kV same-power double-circuit line | |
| CN203145552U (en) | Composite tower used for power grid power lines and composite cross arm structure thereof | |
| RU2003123610A (en) | ELECTRICITY AND VALVE LIMITER FOR ELECTRIC TRANSMISSION WIRES | |
| CN111469716A (en) | Additional lead anti-galloping device of electrified railway contact network | |
| CN206293856U (en) | A kind of copper-alloy stranded conductor bracing cable is pressed from both sides | |
| CN202378722U (en) | Pre-twisted terminal anchoring cable clamp used for carrier cable | |
| CN106877241B (en) | A kind of two-way anti-race line protector based on speed control | |
| CN104164994A (en) | Mountainous area anti-swing transmission line tangent tower for glass fiber reinforced plastic V-shaped strings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |