CN2646920Y - Aerodynamic threw-about preventing device - Google Patents
Aerodynamic threw-about preventing device Download PDFInfo
- Publication number
- CN2646920Y CN2646920Y CN 03237976 CN03237976U CN2646920Y CN 2646920 Y CN2646920 Y CN 2646920Y CN 03237976 CN03237976 CN 03237976 CN 03237976 U CN03237976 U CN 03237976U CN 2646920 Y CN2646920 Y CN 2646920Y
- Authority
- CN
- China
- Prior art keywords
- aerodynamic
- transmission line
- overhead transmission
- threw
- plastic tape
- 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
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
An aerodynamic threw-about preventing device, which comprises three light plastic belts (1) with triangle section spirally twisted and fixed on an aerodynamic (2). The light plastic belts (1) twisted on the aerodynamic enable the air dynamic attacking angle of the aerodynamic (2) to change continuously, therefore, the air dynamic acted on the aerodynamic (2) is similar to balance force system, thereby preventing threw-about of the aerodynamic (2).
Description
Affiliated technical field
The utility model relates to a kind of device that prevents galloping of overhead transmission line, especially relates to the strap means of utilizing aerodynamic principle to prevent galloping of overhead transmission line.
Background technology
At present, knownly prevent that the device of galloping of overhead transmission line from being off resonance pendulum and eccentric hammer.The off resonance pendulum is made of wire clamp and pendulum, and it makes the torsional frequency of overhead transmission line and laterally frequency is inequality, realizes preventing the purpose of galloping of overhead transmission line.Eccentric hammer is made of wire clamp and eccentric hammer, and it produces restoring moment by eccentric hammer, realizes preventing the purpose of galloping of overhead transmission line.But the lumped mass of these two kinds of anti-dance devices increases the tension force of overhead transmission line, thereby has aggravated the aeolian vibration of overhead transmission line.
Summary of the invention
In order to overcome the deficiency that existing anti-dance device makes the aeolian vibration aggravation of overhead transmission line, the utility model provides a kind of air force anti-dance device, and it can prevent waving of overhead transmission line and not aggravate the aeolian vibration of overhead transmission line.
The technical scheme that its technical problem that solves the utility model adopts is to be triangle with three sliver transvers sections, length is wrapped on the overhead transmission line for the sixth light plastic band of span spirally, and fix with retainer ring, the left end of each plastic tape is respectively 1/12nd span, 5/12nds spans and 9/12nds spans apart from left side shelves end.These plastic tapes change the air force angle of attack on the overhead transmission line continuously, thereby make the air force that acts on overhead transmission line become balanced system of force approx, realize preventing the purpose of waving.Because the quality of plastic tape is little and be profile, therefore can not aggravate the aeolian vibration of overhead transmission line.
The beneficial effects of the utility model are to prevent the aeolian vibration of waving and do not aggravate overhead transmission line of overhead transmission line.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is the schematic diagram of embodiment.
1. light plastic band, 2. overhead transmission lines among Fig. 1.
Embodiment
Three light plastic bands are wrapped on the overhead transmission line and with fixture spirally are fixed, it is long that the coiling length of every plastic tape is the sixth shelves, the left end of each light plastic band is followed successively by 1/12nd grade long apart from left side shelves end, and 5/12nds grades long, and 9/12nds grades long.
Claims (1)
- A kind of device that prevents galloping of overhead transmission line, constitute by three plastic tapes that twine and be fixed on the overhead transmission line different parts respectively, the cross section that it is characterized in that plastic tape is a triangle, it is long that the length of plastic tape is the sixth shelves, the position of twining is: the left end of article one plastic tape is 1/12nd grade long apart from the distance of left side shelves end, the left end of second plastic tape is 5/12nds grades long apart from the distance of left side shelves end, and the left end of the 3rd plastic tape is 9/12nds grades long apart from the distance of left side shelves end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237976 CN2646920Y (en) | 2003-09-12 | 2003-09-12 | Aerodynamic threw-about preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237976 CN2646920Y (en) | 2003-09-12 | 2003-09-12 | Aerodynamic threw-about preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646920Y true CN2646920Y (en) | 2004-10-06 |
Family
ID=34291942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03237976 Expired - Fee Related CN2646920Y (en) | 2003-09-12 | 2003-09-12 | Aerodynamic threw-about preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646920Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859992A (en) * | 2010-06-11 | 2010-10-13 | 沈阳电业局电缆厂 | Multifunctional tension resistant wire clamp |
| CN101882714A (en) * | 2010-06-11 | 2010-11-10 | 沈阳电业局电缆厂 | Multifunctional splicing sleeve |
| CN105869715A (en) * | 2016-06-17 | 2016-08-17 | 李奇元 | Tubular bus for novel electric power transmission and transformation system |
-
2003
- 2003-09-12 CN CN 03237976 patent/CN2646920Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859992A (en) * | 2010-06-11 | 2010-10-13 | 沈阳电业局电缆厂 | Multifunctional tension resistant wire clamp |
| CN101882714A (en) * | 2010-06-11 | 2010-11-10 | 沈阳电业局电缆厂 | Multifunctional splicing sleeve |
| CN105869715A (en) * | 2016-06-17 | 2016-08-17 | 李奇元 | Tubular bus for novel electric power transmission and transformation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |