CN111030018A - Net type damping wire anti-vibration device - Google Patents
Net type damping wire anti-vibration device Download PDFInfo
- Publication number
- CN111030018A CN111030018A CN201811172224.5A CN201811172224A CN111030018A CN 111030018 A CN111030018 A CN 111030018A CN 201811172224 A CN201811172224 A CN 201811172224A CN 111030018 A CN111030018 A CN 111030018A
- Authority
- CN
- China
- Prior art keywords
- wire
- damping
- type
- net
- clamp
- 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.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The present invention relates to a vibration isolator of a mesh-type damper wire attached to a power transmission wire, the vibration isolator comprising: a pre-twisted wire clamp and a net type structure damping wire; one end of the pre-twisted wire clamp is of a U-shaped groove structure, the U-shaped groove is used for being clamped to the power transmission wire, and the other end of the pre-twisted wire clamp is fixedly connected with the damping wire. According to the technical scheme provided by the invention, damping wire combinations with different lengths and different specifications are adopted, so that the full frequency range of breeze vibration can be covered, a bolt structure does not exist, and maintenance is not needed in operation.
Description
Technical Field
The invention relates to the technical field of electric power fittings in power transmission and transformation projects, in particular to a net type damping wire anti-vibration device.
Background
The breeze vibration is a vibration mode with high occurrence probability of the overhead transmission line, easily causes fatigue and strand breakage of the ground wire, and is one of the problems that the design and the operation of the line must be focused. The large-span engineering wire of the power transmission line mostly adopts a scheme of a Bate damping wire and an anti-vibration hammer, and long-term operation experience proves that the anti-vibration scheme mainly based on the damping wire has a good anti-vibration effect. However, the anti-vibration scheme needs to perform wire stripping treatment on a construction site, and the damping wire clamp is fastened by using the bolt when the anti-vibration scheme is installed at high altitude, so that the installation difficulty is high, the bolt needs to be fastened regularly during operation, and the operation and maintenance workload is relatively large, so that the problem that the micro-wind vibration in different resonant frequency ranges needs to be effectively solved, and the damping wire anti-vibration device is easy to install and maintain during installation and operation is an important problem to be solved at present.
Disclosure of Invention
The invention provides a net type damping wire anti-vibration device, aiming at solving the problems of low performance, difficult installation and difficult maintenance of the damping wire anti-vibration device in the prior art.
The technical scheme provided by the invention is as follows:
a mesh-type damper wire vibration isolator for mounting on a power transmission wire, comprising: a pre-twisted wire clamp and a net type structure damping wire;
one end of the pre-twisted wire clamp is of a U-shaped groove structure, the U-shaped portion of the U-shaped groove is used for being clamped to the power transmission wire, and the other end of the pre-twisted wire clamp is fixedly connected with the net type damping wire.
Preferably, the mesh-type structure damper wire includes: at least two damping wires, a plurality of compression type wire clamps;
the compression-type wire clamp is of a double-hole structure, and the damping wires are connected through the double-hole structure of the compression-type wire clamp to form a net-type structure;
and the first layer of damping wire in the net type structure is fixedly connected with the other end of the pre-twisted wire clamp.
Preferably, the lengths of the damping wires of the net-type structure are different from each other, and the damping wires are sequentially connected through a plurality of compression-type wire clamps from long to short to form the net-type structure;
preferably, each of the mesh-type structure damping wires has a different specification;
the damping wire specification includes: steel-cored aluminum strand, aluminum strand and interstitial wire.
Preferably, the length and size of the mesh structure damper wire are determined by the frequency of the power transmission conductor subjected to the breeze vibration.
Preferably, at least three pre-twisted wire clamps are arranged on the uppermost damping wire;
and for any other damping wire, at least two compression-type wire clamps are included, and the number of the compression-type wire clamps is sequentially decreased in the number of the pre-twisted wire clamps of the damping wire on the uppermost layer.
Preferably, the compression-type wire clamp is a double-hole-type aluminum wire clamp.
Preferably, the damping wire and the compression type wire clamp are fixed in a crimping mode.
Preferably, one end of the pre-twisted wire clamp is of a hollow U-shaped structure, and the contact surface of the U-shaped structure is matched with the peripheral surface of the transmission conductor;
preferably, the preformed armor rods further comprise preformed armor rods, and the preformed armor rods penetrate through the hollow parts of the U-shaped grooves and are fixed in a mechanical pressing mode;
the preformed armor rods are spiral aluminum-clad steel wires and wound on the electric transmission wires.
Preferably, the other end of the pre-twisted wire clamp is fixed with the net type damping wire structure in a crimping mode.
A method of installing a mesh-type damper wire vibration isolation device, comprising:
pre-assembling a pre-twisted wire clamp and a net-type structure damping wire in the net-type damping wire anti-vibration device;
clamping the pre-twisted wire clamp on the power transmission conductor, and winding the assembled pre-twisted wire on the power transmission conductor;
and clamping the pre-twisted wire clamp with the power transmission wire.
Preferably, the length and size of each of the mesh-type structure damper wires are determined according to the frequency of the power transmission line to which the mesh-type damper wire vibration isolation device is to be installed, which is subjected to the breeze vibration.
Compared with the prior art, the invention has the beneficial effects that:
a mesh-type damper wire vibration isolator which is attached to a power transmission wire, comprising: the damping wire comprises preformed armor rods, preformed armor clamps and a net type structure damping wire; one end of the pre-twisted wire clamp is of a U-shaped groove structure, a U-shaped part of the U-shaped groove is clamped on the power transmission wire, the pre-twisted wire penetrates through a hollow part of the U-shaped groove, and the other end of the pre-twisted wire clamp is fixedly connected with the damping wire; the preformed armor rods are wound on the electric transmission wires. The invention is arranged on the overhead transmission line, the preformed armor rods are reliably held, and the wire clamp can be effectively prevented from slipping; the combination of the internet-surfing type damping lines can cover the full frequency range of breeze vibration; the net type damping wire vibration-proof device provided by the invention has no bolt structure, no possibility of bolt loosening exists, and no maintenance is needed in operation.
Drawings
Fig. 1 is a structural view of a mesh-type damping wire vibration damping device according to the present invention;
FIG. 2 is an effect diagram of the preformed wire clamp of the present invention;
FIG. 3 is an effect diagram of the compression-type wire clamp of the present invention;
wherein, 1-a conducting wire; 2-preformed armor rods; 3-a pre-twisted wire clamp; 4-a first layer of damping wires; 5-compression type wire clamp; wherein the damping wires 4 and 5 are connected in a matching way to form the net type structure damping wire.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
Example 1:
fig. 1 is a structural view of a mesh-type damper wire vibration isolator according to the present invention, and as shown in fig. 1, the mesh-type damper wire vibration isolator is attached to a power transmission wire, and includes: the damping wire comprises preformed armor rods, preformed armor clamps and a net type structure damping wire;
one end of the pre-twisted wire clamp is of a U-shaped groove structure, the U-shaped groove is used for being clamped to the power transmission wire, the pre-twisted wire penetrates through the hollow part of the U-shaped groove, and the other end of the pre-twisted wire clamp is fixedly connected with the net type structure damping wire;
the preformed armor rods are wound on the electric transmission wires.
The mesh-type structure damping wire includes: at least two damping wires, a plurality of compression type wire clamps;
the compression-type wire clamp is of a double-hole structure, and the damping wires are connected through the double-hole structure of the compression-type wire clamp to form a net-type structure;
and the first layer of damping wire in the net type structure is fixedly connected with the other end of the pre-twisted wire clamp. The uppermost damping wire in the mesh-type structure damping wire shown in fig. 1 is the first layer damping wire.
The lengths of all damping wires of the mesh-type structure damping wire are different from each other, and the damping wires are connected through a plurality of compression-type wire clamps once from long to short according to the lengths of the damping wires to form a mesh-type structure;
each damping wire in the net type structure damping wires has different specifications;
the damping wire gauge includes: steel-cored aluminum strand, aluminum strand and interstitial wire. The length and specification of the mesh structure damping wire are determined by the frequency of the power transmission conductor subjected to breeze vibration.
Two adjacent damping wires and a compression type wire clamp for connecting the two damping wires form one layer of the mesh type structure damping wire;
the uppermost damping wire at least comprises three pre-twisted wire clamps;
and for any other damping wire, at least two compression-type wire clamps are included, and the number of the compression-type wire clamps is sequentially decreased in the number of the pre-twisted wire clamps of the damping wire on the uppermost layer.
The compression type wire clamp is a double-hole type aluminum wire clamp.
The damping wire and the compression type wire clamp are fixed in a crimping mode.
One end of the pre-twisted wire clamp is of a hollow U-shaped structure, and the contact surface of the U-shaped groove structure is matched with the peripheral surface of the power transmission lead; and the preformed armor rods penetrate through the hollow parts of the U-shaped grooves and are fixed in a mechanical pressing mode.
The preformed armor rods are spiral aluminum-clad steel wires and wound on the electric transmission wires.
The other end of the pre-twisted wire clamp is fixed with the net type damping wire structure in a crimping mode.
A method of installing a mesh-type damper wire vibration isolation device, comprising:
pre-assembling the pre-twisted wire, the pre-twisted wire clamp and the net-type structure damping wire in the net-type damping wire anti-vibration device;
clamping the preformed armor rods on the electric transmission wire, and winding the assembled preformed armor rods on the electric transmission wire;
and clamping the pre-twisted wire clamp with the power transmission wire.
And determining the length and specification of each damping wire in the mesh-type structure damping wire according to the frequency of the power transmission wire to which the mesh-type damping wire anti-vibration device is to be installed and subjected to breeze vibration.
As shown in fig. 2, the contact surface of the preformed clamp contacting the power transmission conductor is semicircular, and the inner diameter of the contact surface is the same as the outer diameter of the power transmission conductor.
As shown in fig. 3, the compression-type wire clamp is made of aluminum and has a double-hole shape.
The upper layer damping wire and the lower layer damping wire are of a mesh damping wire structure formed by wires made of different materials and comprise steel-cored aluminum stranded wires, aluminum stranded wires or interstitial wires.
The scale of the reticular damping wire structure can be increased by arranging a compression type wire clamp on the lower layer damping wire;
the upper layer damping line comprises N (N > ═ 2) laces, and the lower layer damping line comprises N-1 laces.
The preformed armor rods are spiral aluminum-clad steel wires, and the inner diameter of the spiral is the same as the outer diameter of the power transmission lead.
The damping wire may have 2 layers or more.
The pre-twisted wire clamp is in a structural form. The lower end of the pre-twisted wire clamp is connected with the damping wire in a compression joint mode, the contact surface of the upper end of the pre-twisted wire clamp and the wire is semicircular, and the pre-twisted wire clamp is fixed with the wire after penetrating through the wire clamp cavity. The lower part is provided with a hole, and the damping wire is fixed by adopting a compression joint mode.
The compression type fastener of compression type fastener tip is the diplopore formula, and two damping wires are worn in the hole respectively, and are fixed through the crimping mode.
The net type damping wire anti-vibration device provided by the invention is formed by prefabrication, and the connection among damping wires and between the damping wires and the damping wire clamps is completed in a crimping mode in a factory;
the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (13)
1. A net-type damper wire vibration isolator for being mounted on a power transmission wire, comprising: a pre-twisted wire clamp and a net type structure damping wire;
one end of the pre-twisted wire clamp is of a U-shaped groove structure, the U-shaped groove is used for being clamped to the power transmission wire, and the other end of the pre-twisted wire clamp is fixedly connected with the net type structure damping wire.
2. The net-type damping wire vibration isolator as claimed in claim 1, wherein:
the mesh-type structure damping wire includes: at least two damping wires, a plurality of compression type wire clamps;
the compression-type wire clamp is of a double-hole structure, and the damping wires are connected through the double-hole structure of the compression-type wire clamp to form a net-type structure;
and the first layer of damping wire in the net type structure is fixedly connected with the other end of the pre-twisted wire clamp.
3. The net-type damping wire vibration isolator as claimed in claim 2, wherein:
the lengths of all damping wires of the net type structure damping wire are different from each other, and the damping wires are connected in sequence through a plurality of compression type wire clamps from long to short to form a net type structure.
4. A net-type damping wire vibration-proof device as defined in claim 2, wherein:
each damping wire in the net type structure damping wires has different specifications;
the damping wire specification includes: steel-cored aluminum strand, aluminum strand and interstitial wire.
5. The net-type damping wire vibration isolator as claimed in claim 4, wherein:
the length and specification of the mesh structure damping wire are determined by the frequency of the power transmission conductor subjected to breeze vibration.
6. The net-type damping wire vibration isolator as claimed in claim 2, wherein:
the uppermost damping wire at least comprises three pre-twisted wire clamps;
and for any other damping wire, at least two compression-type wire clamps are included, and the number of the compression-type wire clamps is sequentially decreased in the number of the pre-twisted wire clamps of the damping wire on the uppermost layer.
7. The net-type damping wire vibration isolator as claimed in claim 2, wherein: the compression type wire clamp is a double-hole type aluminum wire clamp.
8. The net-type damping wire vibration isolator as claimed in claim 2, wherein: the damping wire and the compression type wire clamp are fixed in a crimping mode.
9. The net-type damping wire vibration isolator as claimed in claim 1, wherein:
one end of the pre-twisted wire clamp is of a hollow U-shaped structure, and the contact surface of the U-shaped structure is matched with the peripheral surface of the transmission conductor.
10. The net type damper wire emulation device of claim 1, wherein:
the preformed armor rods penetrate through the hollow parts of the U-shaped grooves and are fixed in a mechanical pressing mode;
the preformed armor rods are spiral aluminum-clad steel wires and wound on the electric transmission wires.
11. The net-type damping wire vibration isolator as claimed in claim 1, wherein:
the other end of the pre-twisted wire clamp is fixed with the net type damping wire structure in a crimping mode.
12. A method of installing a mesh-type damper wire vibration isolation device, comprising:
pre-assembling the pre-twisted wire clamp and the mesh-type structure damping wire in the mesh-type damping wire anti-vibration device according to claim 1;
and clamping the pre-twisted wire clamp on the electric transmission wire, and winding the assembled pre-twisted wire on the electric transmission wire.
13. A method of installing a net-type damping wire vibration isolator according to claim 12, wherein:
and determining the length and specification of each damping wire in the mesh-type structure damping wire according to the frequency of the power transmission wire to which the mesh-type damping wire anti-vibration device is to be installed and subjected to breeze vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172224.5A CN111030018A (en) | 2018-10-09 | 2018-10-09 | Net type damping wire anti-vibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172224.5A CN111030018A (en) | 2018-10-09 | 2018-10-09 | Net type damping wire anti-vibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111030018A true CN111030018A (en) | 2020-04-17 |
Family
ID=70190538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811172224.5A Pending CN111030018A (en) | 2018-10-09 | 2018-10-09 | Net type damping wire anti-vibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111030018A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004543Y (en) * | 2006-12-30 | 2008-01-09 | 国网北京电力建设研究院 | Pre-twisted damper |
| CN201393035Y (en) * | 2009-04-15 | 2010-01-27 | 上海电力线路器材有限公司 | Tree-shaped damping wire |
| CN203774728U (en) * | 2014-03-10 | 2014-08-13 | 石家庄华能电力金具有限公司 | Pre-twisted damping wire |
| JP2014197938A (en) * | 2013-03-29 | 2014-10-16 | 中国電力株式会社 | Overhead wire protection device |
-
2018
- 2018-10-09 CN CN201811172224.5A patent/CN111030018A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004543Y (en) * | 2006-12-30 | 2008-01-09 | 国网北京电力建设研究院 | Pre-twisted damper |
| CN201393035Y (en) * | 2009-04-15 | 2010-01-27 | 上海电力线路器材有限公司 | Tree-shaped damping wire |
| JP2014197938A (en) * | 2013-03-29 | 2014-10-16 | 中国電力株式会社 | Overhead wire protection device |
| CN203774728U (en) * | 2014-03-10 | 2014-08-13 | 石家庄华能电力金具有限公司 | Pre-twisted damping wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8895856B2 (en) | Compression connector and assembly for composite cables and methods for making and using same | |
| JP6638904B2 (en) | Assembly parts of compression type anchor clamp, transmission cable anchoring structure, and method of applying compression type anchor clamp | |
| RU2441293C1 (en) | Earth wire with optical communication cable | |
| US6943290B2 (en) | Vibration damper for overhead power lines | |
| JP2019022314A (en) | Assembly component for compression connection member, compression connection structure for power transmission line, and construction method for compression connection member | |
| US20110209893A1 (en) | Cable structure | |
| CN111030018A (en) | Net type damping wire anti-vibration device | |
| US11217915B2 (en) | Composite core conductor compression connectors and methods for using same | |
| CN201444563U (en) | Pre-twisted wire type anti-vibration hammer | |
| CN211265014U (en) | Novel carbon fiber composite core wire | |
| RU2383979C1 (en) | Anchor ear for optical cable of "eight" type | |
| CN104616761A (en) | Flat cable of elevator | |
| WO2008124198A1 (en) | Damper assembly staking system | |
| CN209642263U (en) | Anti-slip type damper | |
| KR102025261B1 (en) | A compression type clamp for aluminum stranded conductors carbon-glass fiber composite core | |
| CN202650593U (en) | Cable | |
| CN216561131U (en) | Anti-flashover pre-twisted wire type strain clamp | |
| RU137431U1 (en) | VIBRATION Muffler | |
| RU2714680C1 (en) | Electric conductor | |
| CN203283050U (en) | Secondary protective cable clamp used for anchoring of electrified railway terminal | |
| CN214588082U (en) | Medium-strength aluminum alloy conductor cable | |
| CN219370641U (en) | Torsion-resistant aluminum alloy core flexible cable | |
| RU218374U1 (en) | VIBRATION DAMPER | |
| CN216528084U (en) | Electric automatization engineering is with good wide application scope's of toughness cable | |
| US2118629A (en) | Electric cable |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200417 |