CN112886514B - Large-stroke galloping-inhibiting damper for transmission conductor - Google Patents
Large-stroke galloping-inhibiting damper for transmission conductor Download PDFInfo
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- CN112886514B CN112886514B CN202110098255.6A CN202110098255A CN112886514B CN 112886514 B CN112886514 B CN 112886514B CN 202110098255 A CN202110098255 A CN 202110098255A CN 112886514 B CN112886514 B CN 112886514B
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- plate
- fixing groove
- limiting
- galloping
- damper
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- 239000004020 conductor Substances 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 230000002401 inhibitory effect Effects 0.000 title abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 26
- 238000013016 damping Methods 0.000 claims abstract description 14
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 241000755266 Kathetostoma giganteum Species 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009194 climbing Effects 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 241001465754 Metazoa Species 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract description 2
- 241000270295 Serpentes Species 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/30—Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to the technical field of power systems, and relates to a large-stroke oscillation-inhibiting damper for a transmission conductor. The transmission conductor large-stroke anti-galloping damper provided by the invention generates damping force by cutting magnetic induction lines generated between magnets through the metal plate, so that the vibration reduction effect of a conductor model is realized; the main components are connected by elastic means, for example: the spring is connected, the adjusting stroke is large, the large stroke can be realized for inhibiting waving, the vibration damping effect is obvious, the model loss is small, and the durability is strong; the weight is light, the transportation is convenient, and the installation and the maintenance are convenient; the whole large-stroke anti-galloping damper of the transmission conductor is in rigid connection with the insulator string, so that galloping vibration of the conductor can be effectively transmitted; the lower end of the transmission conductor large-stroke anti-galloping damper is provided with a reverse buckling type bowl-shaped snake-proof device, so that small animals are prevented from climbing upwards along a lead to cause line safety accidents; the invention has novel and unique design, wide application range and good popularization and application value and economic benefit.
Description
Technical Field
The invention belongs to the technical field of power systems, and relates to a large-stroke oscillation-inhibiting damper for a transmission conductor.
Background
The galloping of the transmission conductor has great harm to the transmission line, and easily causes mixed line short circuit, flashover trip, suspension insulator wire clamp slippage, line hardware wear, spacer bar fracture, separation of a drainage line and a jumper string and the like. The total damping ratio of the wire is less than zero, which is a necessary condition for waving, so that the waving of the ice-coated wire is restrained to a great extent by improving the damping ratio of the wire structure, the waving time is prolonged, and the waving wind speed is improved.
Although the traditional detuning pendulum and double-pendulum anti-galloping device has a good anti-galloping effect on a single conductor, the anti-galloping effect on a multi-split line is not ideal, and the stay wire type phase ground spacer fundamentally prevents conductor galloping, but the problems of hardware fittings, insulator strings and the like are easily damaged by tension due to the stress concentration and the like at the connection part of the spacer, so that a series of problems are caused. The damping device is used for inhibiting the galloping of the transmission conductor and is a common damping means, for example, the damping device is arranged on an interphase spacer or a split conductor sub-spacer, the galloping of the conductor can be inhibited to a certain extent, but because the stroke is short, the damping ratio is small, the consumed kinetic energy is less, and the galloping inhibiting effect is relatively limited.
Disclosure of Invention
The invention aims to provide a transmission conductor large-stroke anti-galloping damper aiming at the problems in the background technology.
For this reason, the above object of the present invention is achieved by the following technical solutions:
the utility model provides a transmission line large stroke damping ware of waving that restraines which characterized in that: the large-stroke anti-galloping damper for the power transmission conductor comprises a fixing groove, wherein the fixing groove comprises side plates and a bottom plate which are oppositely arranged, the side plates and the bottom plate form a U-shaped structure, magnets which are oppositely arranged are respectively arranged on the inner side walls of the side plates of the fixing groove, a metal plate penetrates through the side plates of the fixing groove, the metal plate is arranged between the magnets which are oppositely arranged, a limiting plate is arranged at the top of the metal plate, a limiting bolt penetrates through the upper end of the side plate of the fixing groove relatively, and the metal plate and the limiting plate are always positioned in the fixing groove so that the limiting bolt and the fixing groove form a movement limiting space of the limiting plate and the metal plate; an elastic mechanism is arranged between the limiting plate and the bottom plate of the fixing groove and is used for enabling a gap to exist between the limiting plate and the limiting bolt when the transmission conductor large-stroke anti-galloping damper works; the upper end of the elastic mechanism is fixed with the limiting plate, the lower end of the elastic mechanism is fixed with the bottom plate of the fixing groove, an upper lead is arranged on the limiting plate, a rigid connecting piece is arranged between the upper lead on the limiting plate and the insulator string, one end of the rigid connecting piece is fixed with the upper lead on the limiting plate, and the other end of the rigid connecting piece is fixed with the insulator string.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention: the elastic mechanism is a spring, and the two springs are respectively arranged at two ends of the limiting plate.
As a preferred technical scheme of the invention: the magnet is a permanent magnet or an electromagnet.
As a preferred technical scheme of the invention: and a down lead is arranged below the bottom plate of the fixing groove, and the lower end of the down lead is anchored with an anchorage device on the ground.
As a preferred technical scheme of the invention: the anti-snake device is arranged on the down-lead and comprises a bowl-shaped hemisphere, an opening of the bowl-shaped hemisphere is arranged downwards, a through hole penetrating through the down-lead is formed in the top of the bowl-shaped hemisphere, limiting sleeves are respectively arranged on the upper portion and the lower portion of the through hole of the bowl-shaped hemisphere, and the limiting sleeves are used for limiting the bowl-shaped hemisphere to the down-lead.
As a preferred technical scheme of the invention: the rigid connecting piece comprises a flat-head screw and nested nuts arranged at two ends of the flat-head screw, two ends of the flat-head screw are respectively sleeved into the nested nuts, one of the nested nuts is fixed with the upper lead, and the other nested nut is fixed with the insulator string.
As a preferred technical scheme of the invention: the metal plate is provided with a pulley on at least one side of the side plate opposite to the fixing groove.
As a preferred technical scheme of the invention: at least one pair of limiting strips is arranged on the side plate of the fixing groove at the position corresponding to the pulley on the metal plate to form a sliding rail of the pulley.
The invention provides a transmission conductor large-stroke anti-galloping damper, which generates damping force by cutting magnetic induction lines generated between magnets through a metal plate, and realizes the vibration damping effect of a conductor model; the main components are connected by elastic means, for example: the spring is connected, the adjusting stroke is large, the large stroke can be realized for inhibiting waving, the vibration damping effect is obvious, the model loss is small, and the durability is strong; the weight is light, the transportation is convenient, and the installation and the maintenance are convenient; the whole large-stroke anti-galloping damper of the transmission conductor is in rigid connection with the insulator string, so that galloping vibration of the conductor can be effectively transmitted; the lower end of the transmission conductor large-stroke anti-galloping damper is provided with a reverse buckling type bowl-shaped snake-proof device, so that small animals are prevented from climbing upwards along a lead to cause line safety accidents; the invention has novel and unique design, wide application range and good popularization and application value and economic benefit.
Drawings
Fig. 1 is a perspective view of a transmission conductor large-stroke anti-oscillation damper provided by the invention.
Fig. 2 is a perspective view of the fixing groove.
Fig. 3 is a transverse sectional view of the fixing groove.
Fig. 4 is a longitudinal sectional view of the fixing groove.
Fig. 5 is a connection diagram of the metal plate, the stopper plate, and the pulley.
Figure 6a is a perspective view of a rigid connection.
Figure 6b is a cross-sectional view of the rigid connection.
Fig. 7a is a perspective view of the snake guard.
Figure 7b is a cross-sectional view of the snake guard.
Detailed Description
The invention is described in further detail with reference to the figures and specific embodiments.
A transmission conductor large-stroke anti-galloping damper comprises a fixing groove 1, a permanent magnet 2, a metal plate 3, a limiting plate 4, a limiting bolt 5, a spring 6, an upper lead 71, a lower lead 72, a rigid connecting piece 8 and an anti-snake device 10.
The whole fixed slot is U-shaped, the side plate 110 is provided with a bolt hole, and the inner side of the side plate is welded with a limit strip 111; the permanent magnet 2 is connected to the fixing groove side plate 110 by a bolt 210; two pulleys 310 are welded on the left side wall and the right side wall of the metal plate 3 respectively, and the upper end of the metal plate is welded with the lower end of the limiting plate 4; the width of the limiting plate 4 is slightly smaller than the opening width of the fixed groove 1, the upper end of the limiting plate 4 is connected with the insulator string 9 through an upper lead 71 and a rigid connecting piece 8, and the lower end of the limiting plate 4 is connected with the upper end of the metal plate 3; the lower end of the spring 6 is connected with the upper part 120 of the fixed groove bottom plate, and the upper end is connected with the lower end of the limit plate 4; the limit bolt 5 penetrates through the two side plates 110 of the fixing groove 1; the rigid connecting piece 8 comprises a flat-head screw 810 and a nested nut 820, the middle of the flat-head screw 810 is thin, and the two ends of the flat-head screw are larger, and the nested nut 820 is nested on the flat-head screw 810; the snake-proof device 10 comprises a reverse buckling type bowl-shaped hemisphere 1010 with a smooth surface, a through hole is formed in the bowl-shaped hemisphere 1010, a gap is formed between the through hole and the down-lead 72, and limiting sleeves 1020 used for limiting the vertical position of the bowl-shaped hemisphere 1010 are arranged on the upper side and the lower side of the bowl-shaped hemisphere 1010.
As shown in fig. 1, the fixing groove 1 is connected to the snake-proof device 10 through the lower end of the base plate 120 and to the ground anchorage 11. The upper end of the limit plate 4 is connected with the lower end of the rigid connecting piece 8 through an upper lead 71, and the upper end of the rigid connecting piece 8 is connected with the insulator string 9.
As shown in fig. 2, the stopper plate 4 is sandwiched between the two side plates 110 of the fixing groove 1. The lower end of the spring 6 is connected with the bottom plate 120 of the fixing groove, and the upper end of the spring 6 is connected with the limit plate 4.
As shown in fig. 3, the stopper bolt 5 is higher than the stopper plate 4 for maintaining the rigidity of the upper portion of the fixing groove 1 and controlling the vertical displacement of the stopper plate 4. The metal plate 3 is sandwiched between the two side plates 110, and the pulleys 310 on the metal plate are in contact with the side plates 110.
As shown in fig. 4, the permanent magnet 2 is connected to the fixed slot side plate 110 by a bolt 210, and four permanent magnets 2 are uniformly arranged on the side wall of each side to form a uniform and strong magnetic field. In addition, a limit bar 111 is welded in the middle of the side plate 110 for limiting the horizontal displacement of the pulley 310.
As shown in fig. 5, the metal plate 3 has 4 pulleys 310 welded to the left and right sides. The metal plate 3 is welded below the stopper plate 4.
As shown in fig. 6, the rigid connector 8 comprises a flat-head screw 810 and a nested nut 820, wherein the flat-head screw 810 is thin in the middle and large in two ends, and the nested nut 820 is nested on the flat-head screw 810. The rigid connecting piece 8 ensures that the upper lead 71 is rigidly connected with the insulator string 9, and can effectively transmit vibration caused by conductor galloping.
As shown in fig. 7, the snake-proof device 10 includes a back-off bowl-shaped hemisphere 1010 with a smooth surface, a through hole is provided on the bowl-shaped hemisphere 1010, a gap is provided between the through hole and the down-lead 72, and a position-limiting sleeve 1020 for fixing the position of the ball is provided on the upper and lower sides of the bowl-shaped hemisphere 1010. When the snake climbs onto the hemisphere 1010, the hemisphere 1010 rotates along the down-lead 72 as an axis, so that the snake is unbalanced and falls on the ground, and the snake is prevented from climbing upwards along the down-lead 72 to cause line discharge tripping.
When the wire waves, vibration is transmitted to the insulator string 9 by the spacer rod and then transmitted to the upper lead wire 71, the upper lead wire 71 drives the limiting plate 4 to slide up and down, the metal plate 3 performs cutting magnetic induction line motion along with the upper lead wire, the anti-galloping effect is generated, the kinetic energy is consumed, the system damping is increased, and the effect of inhibiting the wire waves is achieved.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (8)
1. The utility model provides a transmission line large stroke damping ware of waving that restraines which characterized in that: the large-stroke anti-galloping damper for the power transmission conductor comprises a fixing groove, wherein the fixing groove comprises side plates and a bottom plate which are oppositely arranged, the side plates and the bottom plate form a U-shaped structure, magnets which are oppositely arranged are respectively arranged on the inner side walls of the side plates of the fixing groove, a metal plate penetrates through the side plates of the fixing groove, the metal plate is arranged between the magnets which are oppositely arranged, a limiting plate is arranged at the top of the metal plate, a limiting bolt penetrates through the upper end of the side plate of the fixing groove relatively, and the metal plate and the limiting plate are always positioned in the fixing groove so that the limiting bolt and the fixing groove form a movement limiting space of the limiting plate and the metal plate; an elastic mechanism is arranged between the limiting plate and the bottom plate of the fixing groove and is used for enabling a gap to exist between the limiting plate and the limiting bolt when the transmission conductor large-stroke anti-galloping damper works; the upper end of the elastic mechanism is fixed with the limiting plate, the lower end of the elastic mechanism is fixed with the bottom plate of the fixing groove, an upper lead is arranged on the limiting plate, a rigid connecting piece is arranged between the upper lead on the limiting plate and the insulator string, one end of the rigid connecting piece is fixed with the upper lead on the limiting plate, and the other end of the rigid connecting piece is fixed with the insulator string.
2. The power conductor large stroke anti-galloping damper of claim 1, wherein: the elastic mechanism is a spring, and the two springs are respectively arranged at two ends of the limiting plate.
3. The power conductor large stroke anti-galloping damper of claim 1, wherein: the magnet is a permanent magnet or an electromagnet.
4. The power conductor large stroke anti-galloping damper of claim 1, wherein: and a down lead is arranged below the bottom plate of the fixing groove, and the lower end of the down lead is anchored with an anchorage device on the ground.
5. The power conductor large stroke anti-galloping damper of claim 4, wherein: the anti-snake device is arranged on the down-lead and comprises a bowl-shaped hemisphere, an opening of the bowl-shaped hemisphere is arranged downwards, a through hole penetrating through the down-lead is formed in the top of the bowl-shaped hemisphere, limiting sleeves are respectively arranged on the upper portion and the lower portion of the through hole of the bowl-shaped hemisphere, and the limiting sleeves are used for limiting the bowl-shaped hemisphere to the down-lead.
6. The power conductor large stroke anti-galloping damper of claim 1, wherein: the rigid connecting piece comprises a flat-head screw and nested nuts arranged at two ends of the flat-head screw, two ends of the flat-head screw are respectively sleeved into the nested nuts, one of the nested nuts is fixed with the upper lead, and the other nested nut is fixed with the insulator string.
7. The power conductor large stroke anti-galloping damper of claim 1, wherein: the metal plate is provided with a pulley on at least one side of the side plate opposite to the fixing groove.
8. The power conductor large stroke anti-galloping damper of claim 7, wherein: at least one pair of limiting strips is arranged on the side plate of the fixing groove at the position corresponding to the pulley on the metal plate to form a sliding rail of the pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098255.6A CN112886514B (en) | 2021-01-25 | 2021-01-25 | Large-stroke galloping-inhibiting damper for transmission conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098255.6A CN112886514B (en) | 2021-01-25 | 2021-01-25 | Large-stroke galloping-inhibiting damper for transmission conductor |
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| Publication Number | Publication Date |
|---|---|
| CN112886514A CN112886514A (en) | 2021-06-01 |
| CN112886514B true CN112886514B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110098255.6A Active CN112886514B (en) | 2021-01-25 | 2021-01-25 | Large-stroke galloping-inhibiting damper for transmission conductor |
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| CN (1) | CN112886514B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116674437B (en) * | 2023-08-03 | 2023-12-08 | 中铁电气化勘测设计研究院有限公司 | Anti-galloping damper for overhead contact line additional wire |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198663A (en) * | 1997-09-12 | 1999-04-09 | Emu Ozugutsudo Jiyooji | Flash transmission line marker with power tap |
| CN101820152B (en) * | 2010-04-19 | 2012-11-21 | 河北省电力研究院 | Device for preventing transmission line from waving by using eddy-current heating |
| CN106907042B (en) * | 2017-04-11 | 2023-06-23 | 山东大学 | Multistage composite energy-absorbing energy-consuming vibration reduction device, application and method |
| CN107528279B (en) * | 2017-10-11 | 2019-08-13 | 广东电网有限责任公司电力科学研究院 | A kind of transmission line of electricity aeolian vibration electromagnetism vibrationproof fitting |
| CN107800098A (en) * | 2017-12-01 | 2018-03-13 | 绍兴大明电力设计院有限公司 | A kind of hanging type transmission line of electricity Anti-galloping device |
| CN109818322A (en) * | 2019-02-19 | 2019-05-28 | 山东大学 | A kind of self-adaptive electromagnetic energy consumption Anti-galloping vibration absorber |
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