CN202535011U - Novel electric transmission line vibration damper with damping fluid - Google Patents
Novel electric transmission line vibration damper with damping fluid Download PDFInfo
- Publication number
- CN202535011U CN202535011U CN2012200494898U CN201220049489U CN202535011U CN 202535011 U CN202535011 U CN 202535011U CN 2012200494898 U CN2012200494898 U CN 2012200494898U CN 201220049489 U CN201220049489 U CN 201220049489U CN 202535011 U CN202535011 U CN 202535011U
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- damping fluid
- transmission line
- electric transmission
- vibration damper
- steel strand
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Abstract
The utility model discloses a novel electric transmission line vibration damper with damping fluid. The novel electric transmission line vibration damper is mainly applied to vibration prevention and absorption of high-tension electric transmission lines and comprises a chuck (1), a steel strand (2), a damping fluid sleeve (31), a damper body (32) and a crimping sleeve (5), wherein the damping fluid (4) is contained in a sealed cavity formed by the damping fluid sleeve (31), the damper body (32) and the steel strand (2) in enclosing mode, and therefore integral damping coefficient of the vibration damper is remarkably improved and vibration prevention and absorption capability of the vibration damper for electric transmission leads is enhanced. The novel electric transmission line vibration damper has the advantages that on the basis of not changing the basic structure of the existing vibration damper, the damping fluid and the existing vibration damper are comprehensively used, accordingly the vibration prevention and absorption performance of the novel electric transmission line vibration damper is remarkably improved, and the number of vibration dampers needed in electric transmission lines with large span can be obviously reduced. In addition, the novel electric transmission line vibration damper has the advantages of being reasonable in structure, good in electric transmission line lead vibration attenuation effect, low in manufacture price, convenient to install and replace, safe and reliable to use, long in working life, strong in working environment adaptability and the like.
Description
Technical field
The utility model relates to a kind of transmission line antivibration hammer, specifically a kind of novel transmission line antivibration hammer that damping fluid is housed.
Background technology
The vibration great majority of overhead transmission line are to be caused due to the transmission pressure forced vibration by wind load.Different vibration shape correspondences are along the transmission pressure corresponding vibrational waveform that distributes; Make the transmission pressure each point produce dynamic bending stress in various degree; Particularly dynamic bending stress maximum and duration are the longest near the hitch point at span two ends, under alternate stress, can make electric wire generation fatigue accumulation loss and wearing and tearing and the disconnected thigh of generation.Therefore, not only to take measures to reduce oscillation intensity, and need to adopt suitable vibration protection, under lower oscillation intensity, have the useful life of expection to guarantee lead from the structure aspects of transmission pressure for the strong transmission line of vibration.At present, in superhigh pressure, UHV transmission line, stockbridge damper, damping conductor spacer, two parallel wielded-proof device, eccentric hammer, off resonance pendulum or the like are installed usually, are used for suppressing conductor vibration.
The condition of transmission pressure vibration and the size of amplitude are determined by the energy conservation theorem.When the energy that inputs to energy and the transmission pressure body internal consumption of transmission pressure when wind reached balance, transmission pressure just maintained vibration under a certain amplitude.The vibration that stockbridge damper can utilize steel wire twisted wire and its hammer body changes the vibrational energy of lead into heat energy and acoustic energy consumes; But traditional stockbridge damper structure is single; Shock attenuation result is not remarkable; In the bigger circuit of span, often need place two and above stockbridge damper at the span two ends, cause installing difficulties such as loaded down with trivial details, that the stockbridge damper arrangement symmetries is wayward.
The utility model content
The purpose of the utility model provides a kind of novel transmission line antivibration hammer that damping fluid is housed, and can improve the absorbing damping capacity of common transmission line antivibration hammer, alleviates more significantly because the vibration of the transmission line that other factors such as wind load cause.
The purpose of the utility model realizes through following technical measures:
A kind of novel transmission line antivibration hammer that damping fluid is housed; Comprise and be used to install the chuck of stockbridge damper on transmission pressure; Center fixed is connected in the steel strand wire of chuck; And be separately positioned on the tup on two terminations of steel strand wire, it is characterized in that: the inside of said tup has annular seal space, is packaged with damping fluid in the said annular seal space.
In order to select suitable damping fluid kind for use according to the concrete environment for use of stockbridge damper; Said tup is made up of the cap shape hammer body that damping fluid cover that is fixedly connected on said steel strand wire and top center have through hole; Removably connect between the bottom of said hammer body and the said damping fluid cover; The through hole at the said hammer body of sealing top is passed in the termination of said steel strand wire, and said damping fluid cover, hammer body and steel strand wire surround said annular seal space.
In order to improve the sealing property of above-mentioned annular seal space, be provided with the hollow tube-shape pressure welding case that is used for slit between said hammer body of shutoff and the steel strand wire between the through hole at said hammer body top and the termination of steel strand wire.
As a kind of execution mode of the utility model, said chuck is fastened on the transmission pressure through the retaining mechanism of being made up of bolt, spring washer and nut.
The coefficient such as quality and damping that this installs required filling damping fluid should mate according to the vibration frequency that this circuit took place.When quality, damping coefficient and hammer body quality, the Rigidity Matching of dress damping fluid, when system's inherent characteristic of formation and system vibration frequency couple, this device just can reach best effectiveness in vibration suppression.Compared with prior art; The utility model is equipped with the novel transmission line antivibration hammer of damping fluid on the basis that does not change existing stockbridge damper basic structure; The structure space of comprehensive utilization damping fluid and existing stockbridge damper makes it combine with the damping fluid with higher damping coefficient, and then has significantly improved the absorbing damping property of stockbridge damper; Can obviously reduce the number of required stockbridge damper in the bigger transmission line of span; And can be according to the concrete environment for use of stockbridge damper, change suitable damping fluid kind like the frequency and the intensity of the span of transmission line and structure, wind, change the quality of encapsulation damping fluid.Novel transmission line antivibration hammer has rational in infrastructurely in the utility model, makes the transmission line good damping result, and cost is low, and installing and replacing is convenient, and safe and reliable, long working life is to characteristics such as working environment adaptability are strong.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify:
Fig. 1 has the front view that partly cuts open for the stockbridge damper of the utility model;
Fig. 2 is the left view of the stockbridge damper of the utility model;
Among the figure: 1. chuck, 2. steel strand wire, 3. tup, 31. damping fluid covers, 32. hammer bodies, 4. damping fluid, 5. pressure welding case, 6. bolt, 7. spring washer, 8. nut.
Embodiment
As shown in Figure 1; The utility model is equipped with the novel transmission line antivibration hammer of damping fluid; Comprise being used to install the chuck 1 of stockbridge damper on transmission pressure, be fixedly connected on the steel strand wire 2 of chuck 1, and be separately positioned on the tup 3 on 2 two terminations of steel strand wire; The inside of tup 3 has annular seal space, is packaged with damping fluid 4 in the annular seal space.Under the acting in conjunction of tup 3 and damping fluid 4, the vibration of the stockbridge damper through the utility model reduces the vibrational energy of transmission pressure, thereby can significantly play the absorbing damping effect, reaches and reduces because the purpose of wind-induced transmission line malfunction.Because the damping coefficient of damping fluid is big more under the normal condition, its comprehensive absorbing effectiveness in vibration suppression to transmission pressure is good more, so this damping fluid 4 that is encapsulated in the annular seal space should be selected the higher damping fluid of damping coefficient for use as far as possible.
And in response to the environment for use of stockbridge damper; Different like the frequency of the span of transmission line, wind and intensity; The utility model is in order to select suitable damping fluid kind for use according to the concrete environment for use of stockbridge damper; Above-mentioned tup 3 is made up of with the cap shape hammer body 32 that top center has through hole the damping fluid cover 31 that is fixedly connected on steel strand wire 2; Removably connect between the bottom of hammer body 32 and the damping fluid cover 31, the through hole at sealing hammer body 32 tops is passed in the termination of steel strand wire 2, and damping fluid cover 31, hammer body 32 and steel strand wire 2 surround annular seal space.
In order to improve the sealing property of above-mentioned annular seal space, be provided with the hollow tube-shape pressure welding case 5 that is used for slit between shutoff hammer body 32 and the steel strand wire 2 between the through hole at above-mentioned hammer body 32 tops and the termination of steel strand wire 2.Not so the through hole that before injection damping fluid 4 in hammer body 32, should guarantee hammer body 32 tops can cause the leakage of damping fluid by shutoff.
Wherein, as shown in Figure 2, above-mentioned chuck 1 can be fastened on the transmission pressure through the retaining mechanism of being made up of bolt 6, spring washer 7 and nut 8.
The novel transmission line antivibration hammer that the utility model is equipped with damping fluid comprises following Installation Considerations:
1, should note 4 points in the installation process: bolt 6 is worn, bolt 6 correct to guaranteeing should be fastening, stockbridge damper is vertical naturally with ground, parallel with lead;
2, the mounting distance of stockbridge damper is an important link, is normally proposed by the designer, also can calculate mounting distance according to maximum half wavelength and minimum half-wavelength;
3, stockbridge damper is installed the selection of quantity, and the energy size that acts on overhead wire with diameter, span and the wind of overhead wire is relevant, is normally proposed by design;
4, stockbridge damper twines lead anti-slip rubber pad and notes 3 points in installation process: winding direction is consistent with transmission pressure coiling direction, two ends lead anti-slip rubber pad should have later, two ends lead anti-slip rubber pad is reserved and can not be surpassed 10mm;
5, the tup of stockbridge damper does not have correlation standard towards irrelevant with the vibrationproof performance yet.Be accustomed to the dress method for many years according to China, general all with the big tup of stockbridge damper towards the iron tower direction.
Claims (4)
1. novel transmission line antivibration hammer that damping fluid is housed; Comprise and be used to install the chuck (1) of stockbridge damper on transmission pressure; Center fixed is connected in the steel strand wire (2) of chuck (1); And be separately positioned on the tup (3) on (2) two terminations of steel strand wire, it is characterized in that: the inside of said tup (3) has annular seal space, is packaged with damping fluid (4) in the said annular seal space.
2. the novel transmission line antivibration hammer that damping fluid is housed according to claim 1; It is characterized in that: said tup (3) is made up of the cap shape hammer body (32) that damping fluid cover (31) that is fixedly connected on said steel strand wire (2) and top center have through hole; Removably connect between the bottom of said hammer body (32) and the said damping fluid cover (31); The through hole at sealing said hammer body (32) top is passed in the termination of said steel strand wire (2), and said damping fluid cover (31), hammer body (32) and steel strand wire (2) surround said annular seal space.
3. the novel transmission line antivibration hammer that damping fluid is housed according to claim 2 is characterized in that: be provided with the hollow tube-shape pressure welding case (5) that is used for slit between said hammer body of shutoff (32) and the steel strand wire (2) between the through hole at said hammer body (32) top and the termination of steel strand wire (2).
4. according to each described novel transmission line antivibration hammer that damping fluid is housed of claim 1 to 3, it is characterized in that: said chuck (1) is fastened on the transmission pressure through the retaining mechanism of being made up of bolt (6), spring washer (7) and nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200494898U CN202535011U (en) | 2012-02-15 | 2012-02-15 | Novel electric transmission line vibration damper with damping fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200494898U CN202535011U (en) | 2012-02-15 | 2012-02-15 | Novel electric transmission line vibration damper with damping fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535011U true CN202535011U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200494898U Expired - Lifetime CN202535011U (en) | 2012-02-15 | 2012-02-15 | Novel electric transmission line vibration damper with damping fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202535011U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078908A (en) * | 2014-06-23 | 2014-10-01 | 湖南科技大学 | Liquid-filled anti-vibration hammer capable of frequency modulation |
| CN105337234A (en) * | 2015-10-30 | 2016-02-17 | 国网山东省电力公司东营供电公司 | Electric vibration damper applying shear thickening fluid |
| CN106129945A (en) * | 2016-08-30 | 2016-11-16 | 广东电网有限责任公司电力科学研究院 | A kind of damper |
| CN106848972A (en) * | 2015-04-07 | 2017-06-13 | 杨佳雯 | A kind of damper for ultra-high-tension power transmission line |
| CN109103836A (en) * | 2018-10-16 | 2018-12-28 | 国家电网公司 | A kind of bilayer damper |
| CN109139773A (en) * | 2018-10-22 | 2019-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of the vibratory equipment low frequency spectrum lines vibration absorber and its oscillation damping method of Frequency Adjustable |
| CN109347037A (en) * | 2018-10-19 | 2019-02-15 | 中铁大桥科学研究院有限公司 | A kind of impact energy consumption damper |
| CN112582962A (en) * | 2019-09-27 | 2021-03-30 | 中国电力科学研究院有限公司 | Damper and method for determining medium quality of damping fluid in damper |
-
2012
- 2012-02-15 CN CN2012200494898U patent/CN202535011U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078908A (en) * | 2014-06-23 | 2014-10-01 | 湖南科技大学 | Liquid-filled anti-vibration hammer capable of frequency modulation |
| CN106848972A (en) * | 2015-04-07 | 2017-06-13 | 杨佳雯 | A kind of damper for ultra-high-tension power transmission line |
| CN106936107A (en) * | 2015-04-07 | 2017-07-07 | 李乔利 | A kind of anti-vibration hammer for high-voltage power transmission lines |
| CN105337234B (en) * | 2015-10-30 | 2018-02-13 | 国网山东省电力公司东营供电公司 | Using the electric power stockbridge damper of STF |
| CN105337234A (en) * | 2015-10-30 | 2016-02-17 | 国网山东省电力公司东营供电公司 | Electric vibration damper applying shear thickening fluid |
| CN106129945B (en) * | 2016-08-30 | 2018-11-16 | 广东电网有限责任公司电力科学研究院 | A kind of damper |
| CN106129945A (en) * | 2016-08-30 | 2016-11-16 | 广东电网有限责任公司电力科学研究院 | A kind of damper |
| CN109103836A (en) * | 2018-10-16 | 2018-12-28 | 国家电网公司 | A kind of bilayer damper |
| CN109103836B (en) * | 2018-10-16 | 2022-05-27 | 国家电网公司 | Double-layer damper |
| CN109347037A (en) * | 2018-10-19 | 2019-02-15 | 中铁大桥科学研究院有限公司 | A kind of impact energy consumption damper |
| CN109139773A (en) * | 2018-10-22 | 2019-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of the vibratory equipment low frequency spectrum lines vibration absorber and its oscillation damping method of Frequency Adjustable |
| CN112582962A (en) * | 2019-09-27 | 2021-03-30 | 中国电力科学研究院有限公司 | Damper and method for determining medium quality of damping fluid in damper |
| CN112582962B (en) * | 2019-09-27 | 2023-09-08 | 中国电力科学研究院有限公司 | Damper and method for determining mass of damping liquid medium in damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |