CN202749780U - Leading wire vibration damper - Google Patents
Leading wire vibration damper Download PDFInfo
- Publication number
- CN202749780U CN202749780U CN 201220419002 CN201220419002U CN202749780U CN 202749780 U CN202749780 U CN 202749780U CN 201220419002 CN201220419002 CN 201220419002 CN 201220419002 U CN201220419002 U CN 201220419002U CN 202749780 U CN202749780 U CN 202749780U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- composite bushing
- framework
- cushion pad
- wire
- 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.)
- Expired - Fee Related
Links
Abstract
The present utility model discloses a leading wire vibration damper. A composite bushing for stretching out and draw back is arranged inside a framework; a spring is arranged inside the composite bushing; two ends of the spring are abutted against two ends of the composite bushing; a first pull bar passes through the spring, one end of the first pull bar is connected with one end of the composite bushing, the other end of the first pull bar passes out of the other end of the composite bushing and is extended out of the framework; and one end of the framework, which is opposite to the extended first pull bar, is provided with a second pull bar. In the leading wire vibration damper, through the joint effect of the composite bushing and the spring, vibration amplitude can be rapidly reduced.
Description
Technical field:
The utility model relates to a kind of vibration isolator, specifically is a kind of wire vibration isolator.
Background technology:
Transmission line is the electrical network important component part, and in recent years, special, extreme climate environment is in the high-incidence season, and transmission line is gone through the test of all kinds of weather such as wind, snow, rain.And disaster caused by a windstorm is relatively large to circuit harm.Wind carries the front, continuingly acts on wire, easily causes the wire windage yaw, i.e. conductor galloping.During conductor galloping, between wire, distance reduces between the wire jumper of strain tower and body of the tower, causes that easily the air gap reduces flashover or short, burn line thigh or wire cause power outage.In addition, wave for a long time can cause that cross-arm damages, the steel tower connecting bolt is loosening or come off, the problem such as insulator wearing and tearing.Gentle breeze forms eddy current to the lee face that brushes at wire of wire, and this uniform eddy current load can excite the vibration of wire.This vibration amplitude is little, and frequency is high, easily causes the weak part of wire and is the fatigue stress effect of contact, produces wire fracture of wire, disconnected strand and destroys, and jeopardizes the circuit security of operation.For this reason, the windproof damping technology of wire is the important means that guarantees the transmission line safe operation.
In the prior art, employing hanging vibration reduction on transmission line hammers to change the amplitude of wire into shape usually, thereby progressively reduces Oscillation Amplitude until stop vibration.The speed that this damping technology reduces to vibrate is slower, and undesirable for less its effectiveness in vibration suppression of vibration of the amplitude of subduing the gentle breeze generation.
The utility model content:
The technical problems to be solved in the utility model is, overcomes existing technological deficiency, and faster wire vibration isolator of a kind of vibration damping speed is provided.
Technical solution of the present utility model is, a kind of wire vibration isolator is provided, and is provided with in the framework for flexible composite bushing; Be provided with spring in the described composite bushing; Described both ends of the spring and composite bushing two ends offset; The first pull bar passes in described spring, and described the first pull bar one end is connected in an end of composite bushing, and the first pull bar other end passes and extend to outside the framework from the composite bushing other end; Be provided with the second pull bar with rightabout framework one end of extended the first pull bar.
After adopting said structure, the utlity model has following advantage: by the acting in conjunction of composite bushing and spring, can subdue faster Oscillation Amplitude.
As preferably, describedly consisted of by a large sleeve pipe and two small casings for flexible composite bushing; Described large sleeve pipe two ends connect respectively the openend of two small casings; Between large sleeve pipe and two small casings for being slidingly matched; The binding site of described large sleeve pipe and two small casings is provided with falling-resistant ring.Composite bushing has formed a damping system, and by large sleeve pipe and two small casing relative displacements in the horizontal direction, air will form damp channel by the annulus between the big and small sheath, realizes damping action.In addition, the binding site of described composite bushing is provided with falling-resistant ring, and coming off between large sleeve pipe and two small casings just can not occur when composite bushing generation relative displacement like this.
As preferably, the end that described the first pull bar one end is connected in composite bushing refers to that an end of the first pull bar is screw mandrel, is rotary with the locking nut of regulating usefulness at described screw mandrel; It is blind end that described the first pull bar passes the in addition two ends that refer to described two small casings from the composite bushing other end, and described blind end respectively is provided with the through hole that can supply the first pull bar to pass.Pass through the adjusting lock nut, can be according to the pretension of the better regulating spring of actual conditions, the composite bushing two ends are provided with the through hole that can pass for the first pull bar, are to form too large space when passing from composite bushing for the first pull bar, affect the formation of damp channel.
Further, be provided with the first cushion pad between described composite bushing and the locking nut, be provided with the second cushion pad between the composite bushing other end and the framework, described the first pull bar passes from the centre bore of the first cushion pad and the second cushion pad.Cushion pad can effectively absorb the energy of general frequency and low frequency vibration, reduces vibration to the injury of wire.
Further, be provided with thrust baffle between described locking nut and the second cushion pad.Thrust baffle can make cushion pad that better stress surface is arranged.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model wire vibration isolator.
Shown in the figure: 1, framework, 2, composite bushing, 3, spring, the 4, first pull bar, the 5, second pull bar, the 6, first cushion pad, the 7, second cushion pad, 8, thrust baffle, 9, locking nut
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is described further:
A kind of wire vibration isolator as shown in Figure 1 is provided with in the framework 1 for flexible composite bushing 2; Be provided with spring 3 in the described composite bushing 2; Described spring 3 two ends and composite bushing 2 two ends offset; The first pull bar 4 passes in described spring 3, and described the first pull bar 4 one ends are connected in an end of composite bushing 2, and the first pull bar 4 other ends pass and extend to outside the framework 1 from composite bushing 2 other ends; Be provided with the second pull bar 5 with extended the first pull bar 4 rightabout framework 1 one ends.Two pull bars of framework are fixed on the wire with wire clamp, and two pull bars are positioned at the both sides of tower insulation, and two pull bars are preferably symmetrical fixing centered by insulator.
Described composite bushing 2 for stretching is made of a large sleeve pipe and two small casings; Described large sleeve pipe two ends connect respectively the openend of two small casings; Between large sleeve pipe and two small casings for being slidingly matched; The binding site of described large sleeve pipe and two small casings is provided with falling-resistant ring.
The end that described the first pull bar 4 one ends are connected in composite bushing 2 refers to that an end of the first pull bar 4 is screw mandrel, is rotary with the locking nut 9 of regulating usefulness at described screw mandrel; It is blind end that described the first pull bar 4 passes the in addition two ends that refer to described two small casings from composite bushing 2 other ends, and described blind end respectively is provided with the through hole that can supply the first pull bar 4 to pass.Adjusting by locking nut 9 is fastening, in advance the tension force of regulating spring.
Be provided with the first cushion pad 6 between described composite bushing 2 and the locking nut 9, be provided with the second cushion pad 7 between composite bushing 2 other ends and the framework 1, described the first pull bar 4 passes from the centre bore of the first cushion pad 6 and the second cushion pad 7.
Be provided with thrust baffle 8 between described locking nut 9 and the second cushion pad 7.
In the implementation, when the wire vibration isolator symmetry that sets be fixed on insulator with wire clamp, in the time of on the lower Square wire of the magnetic bottle that namely is commonly called as, the wire between two pull bars is opened in advance, sag reduces.Wire tension between pull bar is partly transferred on the wire vibration isolator, and the effect of the power of being born alone by insulator before carrying additionally is now by insulator and wire vibration isolator shared, and the vibrational energy that wire produces is also born simultaneously by both.
Described composite bushing 2 just is equivalent to a damping system, and when large sleeve pipe and two small casing generation relative displacements, the annulus between them forms the damping air flue, thereby makes gradually loss of vibrational energy, reaches the purpose of guardwire.The falling-resistant ring of composite bushing 2 binding sites can prevent effectively that large sleeve pipe and small casing from coming off when relatively moving.And the spring tension device of spring 3, composite bushing 2, the first pull bar 4, the second pull bar 5 compositions, can Compress Spring 3 by the locking nut 9 of regulating on the screw mandrel, thereby the wire between the tensioning pull bar, reduce the sag of wire, realize the effect of elastic pre-tensioning, when the conductor galloping of tensioning, realize the length slowly-releasing, reduce and wave impact.In addition, the first pull bar 4 passes the first cushion pad 6 and the second cushion pad 7, so that two cushion pads can only move in the horizontal direction, adds the support of upper frame 1 and 8 pairs of cushion pads of thrust baffle, so that two cushion pads effective absorbing vibrational energy when stressed.Cushion pad in the present embodiment is rubber buffer, and the buffering susceptibility is high, can effectively absorb the energy of general frequency and low frequency vibration.The utility model wire vibration isolator utilizes damping and snubber vibrational energy, thereby reduces disaster caused by a windstorm to the harm of transmission line.
Claims (5)
1. a wire vibration isolator is characterized in that: be provided with in the framework (1) for flexible composite bushing (2); Be provided with spring (3) in the described composite bushing (2); Described spring (3) two ends and composite bushing (2) two ends offset; The first pull bar (4) passes in described spring (3), and described the first pull bar (4) one ends are connected in an end of composite bushing (2), and the first pull bar (4) other end passes and extends to outside the framework (1) from composite bushing (2) other end; Be provided with the second pull bar (5) with rightabout framework (1) one end of extended the first pull bar (4).
2. wire vibration isolator according to claim 1 is characterized in that: describedly be made of a large sleeve pipe and two small casings for flexible composite bushing (2); Described large sleeve pipe two ends connect respectively the openend of two small casings; Between large sleeve pipe and two small casings for being slidingly matched; The binding site of described large sleeve pipe and two small casings is provided with falling-resistant ring.
3. wire vibration isolator according to claim 1, it is characterized in that: the end that described the first pull bar (4) one ends are connected in composite bushing (2) refers to that an end of the first pull bar (4) is screw mandrel, is rotary with the locking nut (9) of regulating usefulness at described screw mandrel; It is blind end that described the first pull bar (4) passes the in addition two ends that refer to described two small casings from composite bushing (2) other end, and described blind end respectively is provided with the through hole that can supply the first pull bar (4) to pass.
4. wire vibration isolator according to claim 3, it is characterized in that: be provided with the first cushion pad (6) between described composite bushing (2) and the locking nut (9), be provided with the second cushion pad (7) between composite bushing (2) other end and the framework (1), described the first pull bar (4) passes from the centre bore of the first cushion pad (6) and the second cushion pad (7).
5. wire vibration isolator according to claim 4 is characterized in that: be provided with thrust baffle (8) between described locking nut (9) and the second cushion pad (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419002 CN202749780U (en) | 2012-08-23 | 2012-08-23 | Leading wire vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419002 CN202749780U (en) | 2012-08-23 | 2012-08-23 | Leading wire vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749780U true CN202749780U (en) | 2013-02-20 |
Family
ID=47709132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220419002 Expired - Fee Related CN202749780U (en) | 2012-08-23 | 2012-08-23 | Leading wire vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749780U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356161A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Viscous damping shielding ring and manufacturing method thereof |
| CN106532613A (en) * | 2016-12-21 | 2017-03-22 | 国网山西电力设计研究院 | Insulator string with buffer |
| CN107785852A (en) * | 2016-08-30 | 2018-03-09 | 江苏兆邦电力器材有限公司 | A kind of wedge strain resistance cable clamp |
| CN111446686A (en) * | 2020-03-16 | 2020-07-24 | 神华国能集团有限公司 | Cable connector with length adjusting function |
-
2012
- 2012-08-23 CN CN 201220419002 patent/CN202749780U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785852A (en) * | 2016-08-30 | 2018-03-09 | 江苏兆邦电力器材有限公司 | A kind of wedge strain resistance cable clamp |
| CN106356161A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Viscous damping shielding ring and manufacturing method thereof |
| CN106356161B (en) * | 2016-10-13 | 2017-08-29 | 国家电网公司 | Viscous damping formula shading ring and preparation method thereof |
| CN106532613A (en) * | 2016-12-21 | 2017-03-22 | 国网山西电力设计研究院 | Insulator string with buffer |
| CN111446686A (en) * | 2020-03-16 | 2020-07-24 | 神华国能集团有限公司 | Cable connector with length adjusting function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202749780U (en) | Leading wire vibration damper | |
| CN102738747B (en) | Ground-conductor energy release bar and ground-conductor spacer bar | |
| CN104979790B (en) | A kind of inter-phase spacer spring damping device | |
| CN105552813B (en) | A kind of energy by collision conductor spacer | |
| CN107093881A (en) | A kind of damping unit for being used to suppress electric transmission line isolator windage yaw | |
| CN101931196B (en) | Elastic pre-tensioning and composite damping system for preventing and controlling wind deflection and vibration of wire | |
| CN203026883U (en) | Damping rubber galloping preventing spacer | |
| CN104404886B (en) | Two rope composite damping rope | |
| CN103147511B (en) | A kind of shape memory alloy damping energy dissipating support | |
| CN207234355U (en) | A kind of anti-freeze conductor spacer of elastic damping | |
| CN103001163A (en) | Rotary efficient damping anti-galloping spacer with wire clamps | |
| CN203967695U (en) | The preformed inter-phase spacer of two-conductor line | |
| CN201319488Y (en) | Antiskid conductor spacer | |
| CN204161148U (en) | The anti-dancing device of electrified railway strong wind district additive wire | |
| CN108336709A (en) | A kind of Anti-galloping vibration absorber of contact line or power transmission line | |
| CN208674830U (en) | A kind of big damping Anti-galloping device | |
| KR101040173B1 (en) | Insulator for very high voltage distribution line | |
| CN202678896U (en) | Anti-skid, preformed and shockproof apparatus | |
| CN102340119A (en) | Structure for preventing flashover of power transmission circuit by windage yaw | |
| CN204131064U (en) | A kind of syndeton of overhead power transmission conducting wire stockbridge damper | |
| CN205070363U (en) | Overhead transmission line damping balanced system | |
| CN204793962U (en) | Alternate conductor spacer spring damping device | |
| CN102306921B (en) | Break-proof method of insulator chain fracture caused by wind blowing | |
| CN204424843U (en) | One prevents stockbridge damper positioning device | |
| CN105406429A (en) | Overhead power transmission line vibration reducing and balancing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20160823 |