CN201682246U - Damping anti-galloping device of simple pendulum hammer - Google Patents
Damping anti-galloping device of simple pendulum hammer Download PDFInfo
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- CN201682246U CN201682246U CN2010201513238U CN201020151323U CN201682246U CN 201682246 U CN201682246 U CN 201682246U CN 2010201513238 U CN2010201513238 U CN 2010201513238U CN 201020151323 U CN201020151323 U CN 201020151323U CN 201682246 U CN201682246 U CN 201682246U
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- damper
- damping
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- spring
- hammer
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Abstract
The utility model relates to a damping anti-galloping device of a simple pendulum hammer, which comprises a link plate, a damping vibration attenuation structure and a pendulum hammer structure, wherein a mounting hole which is used for connecting with a spacer is arranged on the link plate, the damping vibration attenuation structure comprises a spring structure and a damper, the spring structure is positioned between the link plate and the damper, and the pendulum hammer structure comprises a hammer head and a connecting rod which is respectively connected with the hammer head and the damper. First, the anti-galloping device adopts the damping vibration attenuation structure to connect the link plate with the pendulum hammer structure, when an overhead power transmission line waves, the functions of buffering energy, absorbing energy and consuming energy are realized, and the purpose of suppressing the galloping is finally realized; second, the anti-galloping device has simple structure, good anti-galloping performance, convenient installation and good economy, and is applicable to being popularized and used in large scale; and then the connecting rod is used for realizing the movable connection of the hammer head and the damper, when a lead is twisted and swings, the hammer head keeps in the vertical upwards direction all the time, so the twisting damping parameter of the overhead power transmission line can be changed, and the effect of suppressing the galloping of the overhead power transmission line is achieved.
Description
Technical field
The utility model belongs to the electric armour clamp field, particularly a kind of single pendulum hammer damping anti-dance device that is used for overhead transmission line.
Background technology
Eccentric ice coating wire produces under the wind excitation during transmission line galloping a kind of low frequency, large amplitude self-excited vibration, its vibration frequency is generally 0.1～3Hz, and amplitude is about 5～300 times of diameter of wire.Wave when taking place, full shelves overhead transmission line is done directed wave vibration, and the conductive wire cross-section center has the movement locus of ovalize on the plane perpendicular to the lead trend.Because amplitude is excessive, wave cause alternate flashover, gold utensil to damage easily, tripping operation has a power failure, hinder disconnected lead and forget about it accident such as shaft tower, the safe operation of circuit is constituted a serious threat, and causes great economic loss and social influence.
How to prevent the generation of conductor galloping, do not see very perfect method so far as yet, existing anti-dance approach adopts following several usually: (1) improves the rigidity of structure; (2) improve the internally-damped of structure; (3) under the condition of natural frequency that does not reduce structure or damping, increase architecture quality; (4) reduce flow velocity, but for overhead transmission line, (1), the anti-dance approach of (3), (4) and unrealistic.Have only by improving the damping of conductor structure, the energy of dissipation input lead system is only the fundamental way that suppresses to wave generation.For bundle conductor, because the variation of lead torque characteristic, the excitation mode of torsional oscillation and transverse vibration coupling is a kind of important form that the bundle conductor icing is waved, and suppresses bundle conductor and reverses another important content that excitation mode is an anti-dance.Can't suppress simultaneously laterally and reverse two kinds and wave the situation that excites for traditional anti-dance device that directly connects to form by yoke plate and tup, so can't satisfy the demand of economy and actual engineering.
Tuned mass damper is used widely in building structure, and its operation principle is that itself vibration frequency is adjusted near the main structure frequency, changes the mesomerism characteristic, to reach damping effect.The wiring system icing is waved the feature that shows as low frequency, large amplitude, the low resistance of wiring system and twisted coupling vibration are major reason and the modes that excites conductor galloping, the present inventor is according to the principle of tuning quality damper vibration damping, internally-dampedly designs a anti-dancing device that can effectively suppress conductor galloping by what improve structure.
The utility model content
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of anti-dance performance single pendulum good, simple in structure, easy for installation to hammer the damping anti-dance device into shape.
For this reason, the utility model proposes a kind of single pendulum hammer damping anti-dance device, comprise yoke plate, damping vibration attenuation structure and pendulum structure, described yoke plate is provided with and is used for the installing hole that is connected with conductor spacer, described damping vibration attenuation structure comprises spring structure and damper, described spring structure places between yoke plate and the damper, and described pendulum structure comprises a tup and the connecting rod that is connected with tup, damper respectively.
Wherein, described damper comprises annular damping material, metal shell and piston rod, and described damping material is located at metal shell inside, and an end of described piston rod is fixed in the centre bore of damping material, its other end is connected with spring structure or pendulum structure.
Wherein, described damper comprises annular damping material, metal shell and piston rod, described damping material is located at metal shell inside, centre bore and its two ends that described piston rod passes damping material are connected with the pendulum structure with spring structure respectively, and the mid portion and the damping material of described piston rod are affixed.
Wherein, described spring structure comprises spring base and compression spring, is connected with one on the described spring base and adjusts bolt, and described compression spring housing is connected on the adjustment bolt and places spring base, described adjustment bolt upper end and yoke plate Joint.
Wherein, when the quantity of described spring structure was 1, it was positioned at the center, upper end of damper.
Wherein, the quantity of described spring structure is during greater than 1 positive integer, and it is positioned at the upper end of damper and is symmetricly set on around the central longitudinal axis of damper.
The beneficial effects of the utility model are:
1), during overhead transmission line galloping, can realize cushioning energy, absorb energy, catabiotic function, and finally reach the purpose that inhibition is waved because the utility model adopts the damping vibration attenuation structure.In addition, this anti-dance device is simple in structure, and the anti-dance performance is good, and is easy for installation, and economic performance is good, and suitable large-scale promotion is used.
2) the utility model is by the flexible connection between connecting rod realization tup and damper, so when lead rocks, tup remains direction straight down, can change the damping parameter that reverses of overhead transmission line, thereby reaches the effect that suppresses overhead transmission line galloping.
Description of drawings
Fig. 1 is the structural representation of anti-dance device embodiment one described in the utility model;
Fig. 2 is the structural representation of anti-dance device embodiment two described in the utility model;
Wherein, the 1-yoke plate, the 2-spring structure, the 21-spring base, 22-compresses spring, the 3-damper, the 31-damping material, the 32-metal shell, the 33-piston rod, the 34-connecting rod, 4-pendulum structure, the 41-connecting rod, the 42-tup, 5-adjusts bolt.
Embodiment
Below in conjunction with accompanying drawing anti-dance device of the present utility model is further described in detail.
Embodiment 1
As shown in Figure 1, this routine anti-dance device comprises a yoke plate 1, damping vibration attenuation structure and a pendulum structure 4.Have on the yoke plate 1 and be used for the installing hole that is connected with conductor spacer, yoke plate 1 is fixed on the conductor spacer body (not marking among the figure) by bolt, and effect is fixedly connected damping vibration attenuation structure and conductor spacer body.The damping vibration attenuation structure mainly comprises spring structure 2 and a damper 3, the generation that it is waved by the energy inhibition of dissipation input lead system; Spring structure 2 is contained between yoke plate 1 and the damper 3, play endergonic effect, when the transmission line wire desire is waved, the energy that impels lead to wave is very huge, installing spring structure 2 additional can be stored in the spring energy moment by the compression spring, and then discharges lentamente, can comprise n spring structure (n is 〉=1 positive integer) in this damping structure, when adopting a spring structure 2, its lower end is connected with the center, upper end of damper 3; When adopting two above spring structures 2, it is distributed on around central longitudinal axis of damper 3 and with the upper end of damper 3 and is connected.Spring structure 2 in this example adopts two, it is symmetricly set on the both sides, upper end of damper 3, and the spring structure energy stored can obtain discharging by damper 3.Spring structure 2 mainly comprises spring base 21 and compression spring 22, is connected with one on the spring base 21 and adjusts bolt 5, and compression spring 22 is socketed on the adjustment bolt 5 and places spring base 21, adjusts the upper end and yoke plate 1 Joint of bolt 5.
Anti-dance device of the present invention is simple in structure, and the anti-dance performance is good, is easy to install, and can realize supportingly with sub-lead spacer, and economic performance is good, and suitable large-scale promotion is used.
Embodiment 2
The structure and the connected mode of this routine described anti-dance device are substantially the same manner as Example 1, have different being only:
As shown in Figure 2, damper 3 mainly comprises annular damping material 31, metal shell 32 and piston rod 33, piston rod 33 passes centre bore and the intermediate portion and damping material 31 Joints of damping material 31, the upper end of piston rod 33 by a connecting rod 34 be connected with two spring bases 21 of spring structure 2, the lower end of piston rod 33 is connected with pendulum structure 4, damping material 31 can be fixed in the optional position of metal shell 32 inside.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. a single pendulum is hammered the damping anti-dance device into shape, it is characterized in that: this anti-dance device comprises yoke plate (1), damping vibration attenuation structure and pendulum structure (4), described yoke plate (1) is provided with and is used for the installing hole that is connected with conductor spacer, described damping vibration attenuation structure comprises spring structure (2) and damper (3), described spring structure (2) places between yoke plate (1) and the damper (3), the connecting rod (41) that described pendulum structure (4) comprises a tup (42) and is connected with tup, damper respectively.
2. single pendulum hammer damping anti-dance device as claimed in claim 1, it is characterized in that: described damper (3) comprises annular damping material (31), metal shell (32) and piston rod (33), described damping material (31) is located at metal shell (32) inside, and an end of described piston rod (33) is fixed in the centre bore of damping material (31), its other end is connected with spring structure (2) or pendulum structure (4).
3. single pendulum hammer damping anti-dance device as claimed in claim 1, it is characterized in that: described damper (3) comprises annular damping material (31), metal shell (32) and piston rod (33), described damping material (31) is located at metal shell (32) inside, centre bore and its two ends that described piston rod (33) passes damping material (31) are connected with pendulum structure (4) with spring structure (2) respectively, and the mid portion and the damping material of described piston rod (33) are affixed.
4. as the arbitrary described single pendulum hammer damping anti-dance device of claim 1-4, it is characterized in that: described spring structure (2) comprises spring base (21) and compression spring (22), be connected with one on the described spring base (21) and adjust bolt (5), described compression spring (22) is socketed on adjustment bolt (5) and goes up and place spring base (21), described adjustment bolt (5) upper end and yoke plate (1) Joint.
5. single pendulum hammer damping anti-dance device as claimed in claim 5, it is characterized in that: when the quantity of described spring structure (2) was 1, it was positioned at the center, upper end of damper (3).
6. single pendulum as claimed in claim 5 hammer damping anti-dance device is characterized in that: the quantity of described spring structure (2) is for greater than 1 positive integer the time, and it is positioned at the upper end of damper (3) and is symmetricly set on around the central longitudinal axis of damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201513238U CN201682246U (en) | 2010-04-02 | 2010-04-02 | Damping anti-galloping device of simple pendulum hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201513238U CN201682246U (en) | 2010-04-02 | 2010-04-02 | Damping anti-galloping device of simple pendulum hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682246U true CN201682246U (en) | 2010-12-22 |
Family
ID=43347279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201513238U Expired - Lifetime CN201682246U (en) | 2010-04-02 | 2010-04-02 | Damping anti-galloping device of simple pendulum hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682246U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701079A (en) * | 2012-09-27 | 2014-04-02 | 中国电力科学研究院 | Viscoelastic damping anti-galloping device |
| CN110377061A (en) * | 2019-06-18 | 2019-10-25 | 东北大学 | A kind of simple pendulum device and its swing fast control method |
| CN113696796A (en) * | 2021-08-27 | 2021-11-26 | 中车青岛四方机车车辆股份有限公司 | Contact net anti-galloping device and rail vehicle |
-
2010
- 2010-04-02 CN CN2010201513238U patent/CN201682246U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701079A (en) * | 2012-09-27 | 2014-04-02 | 中国电力科学研究院 | Viscoelastic damping anti-galloping device |
| CN110377061A (en) * | 2019-06-18 | 2019-10-25 | 东北大学 | A kind of simple pendulum device and its swing fast control method |
| CN110377061B (en) * | 2019-06-18 | 2021-12-17 | 东北大学 | Simple pendulum device |
| CN113696796A (en) * | 2021-08-27 | 2021-11-26 | 中车青岛四方机车车辆股份有限公司 | Contact net anti-galloping device and rail vehicle |
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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 |
Granted publication date: 20101222 |
|
| CX01 | Expiry of patent term |