CN211183318U - Transmission line iron tower galloping damping device - Google Patents
Transmission line iron tower galloping damping device Download PDFInfo
- Publication number
- CN211183318U CN211183318U CN201921330976.XU CN201921330976U CN211183318U CN 211183318 U CN211183318 U CN 211183318U CN 201921330976 U CN201921330976 U CN 201921330976U CN 211183318 U CN211183318 U CN 211183318U
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- transmission line
- iron tower
- damping device
- galloping
- shell
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000013016 damping Methods 0.000 title claims abstract description 64
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000003921 oil Substances 0.000 claims description 23
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004020 conductor Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a transmission line iron tower gallows damping device, transmission line iron tower gallows damping device's bottom is connected with insulator chain's one end through lower bulb link, insulator chain's the other end passes through the fastener and connects on the wire, transmission line iron tower gallows damping device upper end is connected with the iron tower cross arm through iron tower cross arm connection department structure. The damping spring is a carrier for absorbing dynamic force generated by the power transmission line due to galloping, when the line gallops, the damping device works to play a damping effect, and the protection spring and the hydraulic rod work in a cooperative mode.
Description
Technical Field
The utility model relates to a damping device specifically is a transmission line iron tower gallows damping device, belongs to transmission line technical field.
Background
The conductor galloping of the power transmission line is a low-frequency and large-amplitude self-excited vibration phenomenon generated by the eccentric ice-coated conductor under the excitation of wind. The galloping of the power transmission line causes interphase flashover and damages ground wires and conducting wires, and the serious accidents of line tripping, power failure, wire breakage, tower collapse and the like, seriously threatens the safe and stable operation of a power grid, and causes great economic loss.
In the aspect of galloping prevention and control, the existing research measures are started in aspects of additionally arranging spacing rods, avoiding easily-galloping areas by newly-built lines, reinforcing and reinforcing iron towers and the like. Install the conductor spacer additional every interval on the wire is the main measure of preventing waving at present, but traditional conductor spacer shock attenuation effect is limited, and the suppression effect is not obvious, and some novel conductor spacers have the cushioning effect, and the shock attenuation effect is better, nevertheless because its core component is mostly metal material, insulating properties is difficult to guarantee. The area which is easy to wave is avoided, and the method is suitable for planning new lines and is not suitable for preventing and controlling the wave of the existing lines. After the iron tower is reinforced, although the anti-galloping performance can be improved, the improvement cost is high, and not all the iron towers are suitable for transformation.
In conclusion, the existing researches have advantages and disadvantages, and the study on the vibration absorption of the power transmission line iron tower is not considered. The damping device for the galloping of the power transmission line iron tower can be additionally arranged between the insulator string and the cross arm hanging point of the iron tower, so that the load borne by the power transmission line iron tower when the lead gallows is reduced to a certain extent, and the damage of the lead galloping to the iron tower is weakened to the greatest extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a damping device is waved to transmission line iron tower in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a transmission line iron tower galloping damping device comprises a bottom end of the transmission line iron tower galloping damping device, wherein the bottom end of the transmission line iron tower galloping damping device is connected with one end of an insulator string through a lower ball head hanging ring, the other end of the insulator string is connected to a lead through a wire clamp, and the upper end of the transmission line iron tower galloping damping device is connected with an iron tower cross arm through an iron tower cross arm connecting department structure;
transmission line iron tower gallows damping device comprises last bulb link, U type ring, bolt and nut and iron tower cross arm's connection structure, and goes up bulb link lower extreme and be connected with transmission line iron tower gallows damping device, transmission line iron tower gallows damping device not only includes the one-level casing of being connected with iron tower cross arm department and the second grade casing of being connected with insulator chain upper portion, includes hydraulic means, damping spring and protective spring moreover, and whole device passes through the bulb link and links to each other with insulator chain, one-level casing and second grade casing outer end are equipped with one-level shell baffle and second grade shell baffle, hydraulic means comprises sealing washer, piston rod, piston, pressure valve, first oil guide hole and second oil guide hole, and hydraulic means installs the inside at one-level casing and second grade casing.
As a further aspect of the present invention: the hydraulic device is provided with a pressure valve which is positioned right below the piston, and oil guide holes of the pressure valve are in single conduction, namely, the first oil guide hole can only allow hydraulic oil to flow from a rod cavity to a rodless cavity, the second oil guide hole can only allow hydraulic oil to flow from the rodless cavity to the rod cavity, and the first oil guide hole and the second oil guide hole are symmetrical relative to the piston rod.
As a further aspect of the present invention: the first-stage shell and the second-stage shell are arranged on the outer side of the hydraulic device, the first-stage shell is located above the second-stage shell, and when the power transmission line does not swing or slightly swings, namely the stress of the device does not reach a certain threshold value, the first-stage shell and the second-stage shell cannot move.
As a further aspect of the present invention: damping spring and protection spring both ends respectively with one, second grade casing welded fastening, and damping spring connects inside one-level casing and second grade casing, and protection spring installs in the one-level casing outside.
As a further aspect of the present invention: the head of the secondary shell is provided with four metal bulges which are distributed at 90 degrees, the shell body of the primary shell is provided with four grooves which penetrate through the shell body and correspond to the four metal bulges at the head of the secondary shell, and the head of the primary shell and the shell body in the secondary shell also have the same structure.
As a further aspect of the present invention: the metal protrusion is limited to move in the groove of the shell body, the metal protrusion is arranged on the head of the secondary shell, and the metal outer protrusion on the primary shell and the metal protrusion are in corresponding position relation.
As a further aspect of the present invention: the groove is connected with the metal outer protrusion and the metal protrusion on the primary shell in a penetrating mode, and the groove is larger than the protrusion.
Compared with the prior art, the beneficial effects of the utility model are that:
dance damping device, damping spring is the carrier of the dynamic force of absorption transmission line production because of waving, when the circuit takes place to wave, damping device works, play the shock attenuation effect, protection spring and hydraulic stem collaborative work, provide the protection for damping device, be the important part of assurance circuit normal operating, when the circuit normal operating, it keeps motionless to wave damping device, only when the circuit takes place to wave makes the unbalanced tension that the wire produced be greater than a certain threshold value, could trigger device protects, the use of this wave bumper shock absorber, can weaken the effect of vertical unbalanced tension to the iron tower when the wire takes place to wave, transmission tower bearing capacity when having improved the wire and waving is equivalent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the cross arm of the connecting iron tower of the utility model;
FIG. 3 is a schematic view of the connecting insulator string structure of the present invention;
FIG. 4 is a simplified structural diagram of the hydraulic connecting device of the present invention;
FIG. 5 is a schematic view of the structure of the connection department of the present invention with the cross arm of the iron tower;
fig. 6 is a schematic view of the installation structure of the present invention on a tangent tower;
fig. 7 is a schematic structural view of the tension tower of the present invention.
In the figure: 1. the device comprises a primary shell, a secondary shell, a primary shell baffle, a secondary axle center hydraulic device, a damping spring 7, a protective spring 8, a lower ball head hanging ring 9, an upper ball head hanging ring 10, a U-shaped ring 11, a groove 12, a metal outer protrusion 13, a metal protrusion 14, a sealing ring 15, a piston rod 16, a piston 17, a pressure valve 18, a first oil guide hole 19, a second oil guide hole 20, a bolt 21, a nut 22, a tower cross arm 23, an insulator string 24, a wire clamp 25, a lead 26, a jumper wire 27 and a transmission line tower oscillation damping device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 7, a damping device for the galloping of the iron tower of the power transmission line comprises a damping device 27 for the galloping of the iron tower of the power transmission line, and is characterized in that: the bottom end of the transmission line iron tower galloping damping device 27 is connected with one end of an insulator string 23 through a lower ball head hanging ring 8, the other end of the insulator string 23 is connected to a lead 25 through a wire clamp 24, and the upper end of the transmission line iron tower galloping damping device 27 is connected with an iron tower cross arm 22 through an iron tower cross arm connecting department structure;
the transmission line iron tower galloping damping device 27 is a connecting structure with an iron tower cross arm 22, which is formed by an upper ball head hanging ring 9, a U-shaped ring 10, a bolt 20 and a nut 21, and the lower end of the upper bulb hanging ring 9 is connected with a transmission line iron tower galloping damping device 27, the transmission line iron tower galloping damping device 27 not only comprises a primary shell 1 connected with an iron tower cross arm 22 and a secondary shell 2 connected with the upper part of an insulator string 23, but also comprises a hydraulic device 5, a damping spring 6 and a protective spring 7, the whole device is connected with an insulator string 23 through a ball head hanging ring 8, the outer ends of the primary shell 1 and the secondary shell 2 are provided with a primary shell baffle 3 and a secondary shell baffle 4, the hydraulic device 5 is composed of a seal ring 14, a piston rod 15, a piston 16, a pressure valve 17, a first oil guide hole 18 and a second oil guide hole 19, and the hydraulic device 5 is installed inside the primary housing 1 and the secondary housing 2.
Further, in the embodiment of the present invention, there is a pressure valve 17 in the hydraulic device 5, the pressure valve 17 is located under the piston 16, and its oil guiding hole is single-phase conducting, that is, the first oil guiding hole 18 can only allow hydraulic oil to flow to the rodless cavity from the rodless cavity, the second oil guiding hole 19 can only allow hydraulic oil to flow to the rodless cavity from the rodless cavity, the first oil guiding hole 18 and the second oil guiding hole 19 are symmetrical about the piston rod 15, prevent the two-way conduction of hydraulic oil, prevent the waste of resources, and ensure that the hydraulic device 5 works normally.
Further, in the embodiment of the utility model provides an in, one-level casing 1 and second grade casing 2 are installed in the 5 outsides of hydraulic means, and one-level casing 1 is located second grade casing 2 top, does not take place to wave or take place slight galloping when transmission line, when the device atress does not reach a certain threshold value promptly, one-level casing 1 and second grade casing 2 are not movable to guarantee the safety of circuit normal operating.
Further, in the embodiment of the utility model provides an in, damping spring 6 and 7 both ends of protection spring respectively with one, second grade casing welded fastening, and damping spring 6 connects inside one-level casing 1 and second grade casing 2, protection spring 7 is installed in the 1 outside of one-level casing, thereby guarantee the stability that damping spring 6 and protection spring 7 are connected, damping spring 6 is responsible for the power consumption shock attenuation, guarantee one-level and second grade casing normal work by protection spring 7, the collision between the casing does not take place, thereby effectively prolong the life of casing, reduce the possibility to this damping device maintenance.
Further, in the embodiment of the utility model provides an in, 2 heads of second grade casing have four metal protrusion 13, and four metal protrusion 13 are 90 distributions, and 1 shell department of one-level casing has four recesses 11 that run through the shell and corresponds with four metal protrusion 13 of 2 heads of second grade casing, and same 1 heads of one-level casing also have same structure with the inside shell of 2 heads of second grade casing, guarantees one- level casing 1 and 2 shared recesses of second grade casing, resources are saved.
Further, in the embodiment of the present invention, the metal protrusion 13 is limited to move in the groove 11 of the shell body, and the metal protrusion 13 is disposed on the head of the second stage casing 2, and the metal outer protrusion 12 and the metal protrusion 13 on the first stage casing 1 are in a corresponding relationship, so as to prevent the torsion between the first stage casing 1 and the second stage casing 2.
Further, in the embodiment of the present invention, the groove 11 and the metal outer protrusion 12 and the metal protrusion 13 on the first-level housing 1 are connected in a penetrating manner, and the groove 11 is larger than the protrusion to ensure that the protrusion can stably and freely move in the groove 11.
The working principle is as follows: when the transmission line iron tower galloping damping device is used, the damping spring 6 is a carrier for absorbing dynamic force generated by galloping of the transmission line, when the line gallops, the damping device works to play a damping effect, the protection spring 7 works in cooperation with the hydraulic rod to provide protection for the damping device, and the damping spring is an important part for guaranteeing normal operation of the line, when the line normally operates, the galloping damping device keeps still, only when the line gallops to enable unbalanced tension generated by a lead to be greater than a certain threshold value, the device can be triggered to protect, the use of the galloping damper can weaken the effect of the longitudinal unbalanced tension on the iron tower when the lead 25 gallops, equivalently, the bearing performance of the transmission line iron tower when the lead gallops is improved, and the jumper 26 between the two wire clamps 24 on the strain tower is guaranteed not to be broken.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a transmission line iron tower gallows damping device which characterized in that: the bottom end of the transmission line iron tower galloping damping device (27) is connected with one end of an insulator string (23) through a lower ball head hanging ring (8), the other end of the insulator string (23) is connected to a lead (25) through a wire clamp (24), and the upper end of the transmission line iron tower galloping damping device (27) is connected with an iron tower cross arm (22) through an iron tower cross arm connecting department structure;
transmission line iron tower galloping damping device (27) constitute by last bulb link (9), U type ring (10), bolt (20) and nut (21) with the connection structure of iron tower cross arm (22), just it is connected with transmission line iron tower galloping damping device (27) to go up bulb link (9) lower extreme, transmission line iron tower galloping damping device (27) not only include one-level casing (1) of being connected with iron tower cross arm department and second grade casing (2) of being connected with insulator chain upper portion, include hydraulic means (5), damping spring (6) and protection spring (7) moreover, and whole device passes through bulb link (8) and links to each other with insulator chain, one-level casing (1) and second grade casing (2) outer end are equipped with one-level casing baffle (3) and second grade casing baffle (4), hydraulic means (5) are by sealing washer (14), piston rod (15), The hydraulic device comprises a piston (16), a pressure valve (17), a first oil guide hole (18) and a second oil guide hole (19), and the hydraulic device (5) is arranged inside a primary shell (1) and a secondary shell (2).
2. The damping device for galloping of the iron tower of the power transmission line according to claim 1, wherein: the hydraulic device (5) is provided with a pressure valve (17), the pressure valve (17) is positioned right below the piston (16), oil guide holes of the pressure valve are communicated singly, namely, the first oil guide hole (18) only can allow hydraulic oil to flow from a rod cavity to a rodless cavity, the second oil guide hole (19) only can allow hydraulic oil to flow from the rodless cavity to the rod cavity, and the first oil guide hole (18) and the second oil guide hole (19) are symmetrical about the piston rod (15).
3. The damping device for galloping of the iron tower of the power transmission line according to claim 2, wherein: the power transmission line is characterized in that the first-stage shell (1) and the second-stage shell (2) are installed on the outer side of the hydraulic device (5), the first-stage shell (1) is located above the second-stage shell (2), and when the power transmission line does not swing or slightly swings, namely the stress of the device does not reach a certain threshold value, the first-stage shell (1) and the second-stage shell (2) cannot move.
4. The damping device for galloping of the iron tower of the power transmission line according to claim 1, wherein: damping spring (6) and protection spring (7) both ends respectively with one, second grade casing welded fastening, and damping spring (6) are connected inside one-level casing (1) and second grade casing (2), and protection spring (7) are installed in one-level casing (1) outside.
5. The damping device for galloping of the iron tower of the power transmission line according to claim 1, wherein: there are four metal protrusion (13) second grade casing (2) head, and four metal protrusion (13) are 90 distributions, and one-level casing (1) shell department has four recess (11) that run through the shell and corresponds with four metal protrusion (13) of second grade casing (2) head, and same one-level casing (1) head also has same structure with the inside shell of second grade casing (2).
6. The damping device for galloping of the power transmission line tower as claimed in claim 5, wherein: the metal protrusion (13) is limited to move in the groove (11) of the shell body, the metal protrusion (13) is arranged on the head of the secondary shell (2), and the metal outer protrusion (12) on the primary shell (1) is in position corresponding relation with the metal protrusion (13).
7. The damping device for galloping of the power transmission line tower as claimed in claim 5, wherein: the groove (11) is connected with the metal outer bulge (12) and the metal bulge (13) on the primary shell (1) in a penetrating mode, and the groove (11) is larger than the bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330976.XU CN211183318U (en) | 2019-08-16 | 2019-08-16 | Transmission line iron tower galloping damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330976.XU CN211183318U (en) | 2019-08-16 | 2019-08-16 | Transmission line iron tower galloping damping device |
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| Publication Number | Publication Date |
|---|---|
| CN211183318U true CN211183318U (en) | 2020-08-04 |
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ID=71810139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921330976.XU Active CN211183318U (en) | 2019-08-16 | 2019-08-16 | Transmission line iron tower galloping damping device |
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| CN (1) | CN211183318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416954A (en) * | 2019-08-16 | 2019-11-05 | 国家电网有限公司 | A kind of iron tower of power transmission line waves damping device |
-
2019
- 2019-08-16 CN CN201921330976.XU patent/CN211183318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416954A (en) * | 2019-08-16 | 2019-11-05 | 国家电网有限公司 | A kind of iron tower of power transmission line waves damping device |
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