CN206225951U - A kind of inclined composite insulator of transmission tower flexible windproof pins down string and structure - Google Patents
A kind of inclined composite insulator of transmission tower flexible windproof pins down string and structure Download PDFInfo
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- CN206225951U CN206225951U CN201621141780.2U CN201621141780U CN206225951U CN 206225951 U CN206225951 U CN 206225951U CN 201621141780 U CN201621141780 U CN 201621141780U CN 206225951 U CN206225951 U CN 206225951U
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- composite insulator
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- transmission tower
- tower
- insulator
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Abstract
String and structure are pind down the utility model discloses a kind of inclined composite insulator of transmission tower flexible windproof, a kind of inclined composite insulator of transmission tower flexible windproof pins down string, it is characterized in that, including composite insulator, the top of composite insulator is located at Transmission Tower wire suspension string end, the bottom of composite insulator is provided with height-adjustable connector, connector is fixed by elastomeric element with tower body or cross-arm, elastomeric element has the rigidity of setting, and can deform and be recovered according to composite insulator force-bearing situation, to extend the windage yaw response time of suspension string；Flexibility pins down string structure can suppress suspension insulator windage yaw response under wind action, avoid that windage yaw is excessive to cause wire to shaft tower distance that flashover occurs less than minimum discharging gap, windage yaw of the insulator chain under wind effect can effectively be suppressed, ensure that shaft tower and the mechanical safety of suspension string will not be reduced simultaneously, improve transmission line of electricity general safety operation level.
Description
Technical field
The utility model is related to power transmission line electrical technical field, and in particular to a kind of transmission tower is partially multiple with flexible windproof
Close insulator and pin down string and structure.
Background technology
The windage yaw discharge accident of transmission line of electricity is always power network normally one of major safety risks of operation.Transmission line of electricity one
There is windage yaw tripping operation in denier, cause the probability of circuit unplanned outage higher, have a strong impact on power supply reliability, cause huge economy
Loss.In recent years, frequently there is windage yaw discharge in Chinese ultra-high-tension power transmission line, especially domestic a plurality of 500kV circuits windage yaw discharge
Situation is serious, and the frequency of appearance has been over the safe operation limitation of Transmission system.The year two thousand twenty China will be built by million volts
The national trunk rack of level extra-high voltage grid composition, with the increase of line length, the safe operation requirement to wind-deviation flashover
Also it is more urgent.Therefore, the windage yaw of research transmission line of electricity has important meaning with the precautionary measures to transmission line safety stable operation
Justice.
Overhead transmission line longtime running in the wild, is influenceed very big by natural conditions climate change.Terrible weather activity
The lower probability that windage yaw discharge occurs is big, due to environmental factor, great difficulty is caused to malfunction elimination.At present, common transmission of electricity
Circuit wind-deviation modification measures are that exacerbation hammer leaf or rigidity stop or pin down seal on the wire that wind leaning fault occurs.
The scheme of wire suspension string windage yaw is suppressed by the weight of weight, method is simple, easy to operate, but with conductor cross-section and divided
The increase of crack root number, the proportion of the gravity of weight in wire wind load is more and more lower, and inhibitory action is extremely limited.Install rigidity additional
Stop or pin down seal, the stop of wire suspension string or suppression angle of wind deflection is pind down during by strong wind, so that it is guaranteed that electrically
Safety clearance, but this device does not consider that rigidity pins down or stops generation impact or secondary tension force to insulator chain and shaft tower
Influence.Steel tower and insulator chain original force way when changing strong wind due to these devices, therefore considerably increase strong wind
Operating mode falls the risk that tower or wire drop, and new more serious potential safety hazard is brought to circuit operation.
Utility model content
Regarding to the issue above, in order to solve the deficiencies in the prior art, the first purpose of the present utility model is to provide a kind of defeated
The inclined composite insulator of electric pole tower flexible windproof pins down string, its setting for passing through elastomeric element so that pin down string for flexibility is pind down
String structure, is fixed in power transmission tower main material, while load is acted directly in main material, stress is more reasonable, it is ensured that link position is pacified
It is complete reliable.
Second purpose of the present utility model is to provide a kind of inclined structure of transmission tower flexible windproof, and the structure may be used on
The bottom of power transmission tower insulator, the setting of the structure effectively extends the windage yaw response time of extension suspension string, it is ensured that insulator
The service life of string.
The utility model provide scheme be：
A kind of inclined composite insulator of transmission tower flexible windproof pins down string, including composite insulator, composite insulator
Top is located at Transmission Tower wire suspension string end, and the bottom of composite insulator is provided with height-adjustable connector, connects
Part is fixed by elastomeric element with tower body or cross-arm, and elastomeric element has the rigidity of setting, can be according to composite insulator stress shape
Condition deforms and is recovered, to extend the windage yaw response time of suspension string；Above-mentioned composite insulator pins down the setting of string, bullet
Property part make to pin down the deflection that string can provide enough traction forces and abundance, it is ensured that can 1) extend suspension string during strong wind
The windage yaw response time, slow down percussion of the instantaneous maximum wind to shaft tower, 2) composite insulator pin down string in safe distance produce
The free deflection of certain angle, consumes windage yaw energy, and after response process terminates, can recover under the action of the spring to raw bits
Put, and elastomeric element, located at the bottom of composite insulator, elastic length will not be excessive, and the life-span is guaranteed, while effectively
Reduce influence of the windage yaw to insulator chain.
The composite insulator pind down in string structure uses composite, plays a part of insulation, high-strength light weight, overall structure
Make that simple, easy to process, cost performance is high, be easily installed, composite insulator is made up of full skirt with epoxy plug.
Wherein, the elastomeric element is extension spring, it is preferable that extension spring includes two, and two symmetrical and parallel connection sets
Put, extension spring has certain rigidity, it is ensured that elastomeric element is to the tractive force of insulator chain, the extension spring and other portions
Extension spring needs to be attached using ring mode of remaining silent when part is attached, it is ensured that this does not fall off under being connected to various motions；
And it has a certain degree of deformation requirements, safe distance is more than minimum discharging gap requirement when meeting wire suspension string windage yaw.
Further, in order to realize height adjustable, the connector includes that height-adjustable DB adjustment plates, PT are adjusted
Plate, DB adjustment plates one end is fixed by safety bolt with composite insulator, when strong wind cross load be enough to jeopardize shaft tower it is safe when, it is multiple
Conjunction insulator pins down this flexible structure of string safety bolt near connection tower position and destroys automatically, and elimination pins down the shaft tower that string causes
Secondary stress, preferentially ensures shaft tower safety, and safety bolt is installed and the not charged side of low-pressure end, convenient repairing.
The DB adjustment plates are connected by p-type hanging plate with elastomeric element, if desired for length is increased, can be in p-type hanging plate and L-type
Increase PT adjustment plates between yoke plate, the regulation that can also realize to extension spring rigidity is coordinated by the two, DB adjustment plates, p-type are hung
Plate and PT adjustment plates, can control entirely to pin down the length of string by adjustment bolt installation site.
When elastomeric element includes multiple extension springs, the top and bottom of the elastomeric element respectively sets L-type yoke plate, passes through
L-type yoke plate elastomeric element is connected with described p-type hanging plate, realizes the arranged in parallel of extension spring.
Composite insulator pin down string can with Transmission Tower wire suspension string end realize double pendencys connect bind mode or
Person's multiple spot series connection bind mode, specially：The composite insulator top sets at least two links and is led with Transmission Tower
Line suspension string end connects, and link realizes Mulit-point Connection by the stationary fixture on yoke plate and tower body or tower body, and link is U-shaped
Link, U-shaped link is located at each construction junction, plays a part of flexibly to connect each several part, is easy to assembling, and yoke plate is L-type yoke plate.
Wherein, hanging plate connection is set between the link and tower body, and the hanging plate is Z-type hanging plate, and hanging plate can be by fixture
Or other connectors are fixed with tower body, Z-type hanging plate installation site is existing weight installation on the hanging yoke plate of wire suspension string
Hole, it is to avoid replacing hanging yoke plate, has saved transformation power off time and engineering time.
Or, the composite insulator string top is connected the single suspension of realization with tower body by a hanging plate.
Pin down string upper end to connect with suspension insulator by Z-type hanging plate, lower end is connected by right angle fixture with tower body main material
Connect or other modes connection；According to minimum discharging gap, the length of suspension insulator, it is determined that pining down the initial length of string；By
The limit tension load and maximum deflection angle of insulator chain, calculate the optimal effective rigidity of spring；Extension spring is used in parallel, just
Degree halves, and the weight of spring greatly reduces, and is further ensured that the safe operation of power transmission tower.
The utility model provide alternative plan be：
A kind of transmission tower inclined structure of flexible windproof, including located at the height-adjustable connection of composite insulator bottom
Part, sets the hole of multiple different heights on connector, the hole on connector is connected with hanging plate, and hanging plate passes through at least one bullet
Spring is fixed with tower body or cross-arm, and the setting of spring is extending windage yaw response time of suspension string
The beneficial effects of the utility model are：
1) flexibility pins down string structure can suppress suspension insulator windage yaw response under wind action, it is to avoid windage yaw is excessive
Cause wire to shaft tower distance that flashover occurs less than minimum discharging gap, can effectively suppress insulator chain under wind effect
Windage yaw, while ensure that shaft tower and the mechanical safety of suspension string will not be reduced, improve transmission line of electricity general safety operation level.
2) flexibility sets extension spring in pining down string, can both make insulator chain and wire that the inclined of certain angle occurs
Turn, can ensure to meet the requirement of minimum discharging gap again, spring has enough rigidity；
3) when the flexibility pins down string installation, by the setting of the equipment such as hanging plate, other instruments are coordinated to install, can not be to transmission of electricity
Tower is transformed in itself, it is ensured that the normal safe operation of power transmission tower.
4) by setting safety bolt, with when strong wind cross load jeopardize shaft tower it is safe when disconnect automatically, ensure steel tower pacify
Entirely, the characteristics of installation site is near earth terminal, convenient repairing.
Brief description of the drawings
Accompanying drawing 1 is phase wind-deviation flashover pinning assembly figure one in power transmission tower.
Accompanying drawing 2 is phase wind-deviation flashover pinning assembly figure two in power transmission tower.
Accompanying drawing 3 is the schematic diagram that pinning assembly is installed in power transmission tower.
In figure：1Z type hanging plates, 2L type yoke plates, 3U type links, 4 composite insulators, 5DB adjustment plates, 6P type hanging plates, 7 tensions
Spring, 8 safety bolts, 9 tower bodies (or cross-arm) hanging point, 10 wire suspension string hanging points, 11 wire suspension strings.
Specific embodiment
With reference to Figure of description specific embodiment, the utility model will be further described：
A kind of inclined composite insulator of transmission tower flexible windproof pins down string, and the structure is that a flexibility pins down string,
The installation site up and down that the flexibility pins down wind-deviation flashover device is excellent by pining down the gold utensil and Lian Ta fixtures of string
Tower body centre (side-looking) is respectively positioned on after changing combination, to the front and rear side stress of wire suspension string and shaft tower evenly.
Composite insulator as shown in Figure 1 pins down string, including two U-shaped links of L-type yoke plate 2, six of Z-type hanging plate 1, three
3rd, a safety bolt 8 of extension spring 7, of p-type hanging plate 6, two of DB adjustment plates 5, of composite insulator 4, is constituted,
The linking that Z-type hanging plate 1, U-shaped link 3 are used between each several part component, flexibly uses.L-type yoke plate 2 can carry out one turn of bigeminy
Change, it is easy to use., near wire, composite, light weight is high-strength, plays a part of insulation for composite insulator 4.DB adjustment plates 5, P
Type hanging plate 6, small tonnage safety bolt 8, PT adjustment plates (when needing to increase length) are for regulating and controlling the whole length for pining down string.Tension
Spring 7 is used in parallel, and rigidity is certain, there is provided enough restoring forces, meets the requirement of minimum discharging gap.Safety bolt is in strong wind
Cross load jeopardize shaft tower it is safe when disconnect automatically, it is ensured that steel tower safety.
The use of gold utensil such as hanging plate, yoke plate in structure, can adjust accordingly according to the wire suspension string of connection.Lead
Can directly cancel L-type yoke plate when line suspension string is for single string, be changed to veneer connection, as shown in Figure 2.
As shown in figure 3, above-mentioned composite insulator pins down string is arranged at the bottom of wire suspension string 11 with tower body (or cross-arm) extension
Between point 9, wire suspension string is fixed by wire suspension string hanging point 10, and elastomeric element makes to pin down to go here and there can provide enough drawings
The deflection of power and abundance, it is ensured that can 1) extend the windage yaw response time of suspension string during strong wind, slow down instantaneous maximum wind to shaft tower
Percussion, 2) composite insulator pin down string in safe distance produce certain angle free deflection, consume windage yaw energy,
And after response process terminates, can recover under the action of the spring to home position.
Wherein, the elastomeric element includes at least two extension springs for being symmetrical arranged and being arranged in parallel, extension spring tool
Have certain rigidity, it is ensured that elastomeric element to the tractive force of insulator chain, when the extension spring is attached with miscellaneous part
Extension spring needs to be attached using ring mode of remaining silent, it is ensured that this does not fall off under being connected to various motions；And it has certain journey
The deformation requirements of degree, safe distance is more than minimum discharging gap requirement when meeting wire suspension string windage yaw.
In order to realize height adjustable, the connector includes height-adjustable DB adjustment plates, and DB adjustment plates one end passes through
Safety bolt is fixed with composite insulator, when strong wind cross load be enough to jeopardize shaft tower it is safe when, composite insulator pin down string this
Flexible structure safety bolt 8 near connection tower position is destroyed automatically, and elimination pins down the secondary stress of shaft tower that string causes, and preferentially ensures
Shaft tower safety, safety bolt 8 is installed and the not charged side of low-pressure end, convenient repairing.
The DB adjustment plates 5 are connected by p-type hanging plate with elastomeric element, can also be realized to extension spring by the two cooperation
The regulation of 7 rigidity, DB adjustment plates 5, p-type hanging plate and PT adjustment plates can be whole to control by adjusting the installation site of safety bolt 8
The individual length for pining down string.
When elastomeric element includes multiple extension springs 7, the top and bottom of the elastomeric element respectively sets L-type yoke plate 2, leads to
Cross the elastomeric element of L-type yoke plate 2 to be connected with described p-type hanging plate, realize the arranged in parallel of extension spring 7.
Composite insulator pin down string can with Transmission Tower wire suspension string end realize double pendencys connect bind mode or
Person's multiple spot series connection bind mode, specially：Composite insulator string top sets at least two links, link by yoke plate with
Tower body is fixed and realizes Mulit-point Connection, and link is U-shaped link 3, and U-shaped link 3 is located at each construction junction, plays and flexibly connect each portion
The effect for dividing, is easy to assembling, and yoke plate is L-type yoke plate 2.
Wherein, hanging plate connection is set between the link and tower body, and the hanging plate is Z-type hanging plate 1, by hanging plate, yoke plate
Setting, without being drilled in itself to power transmission tower, it is to avoid the influence to power transmission tower intensity in itself, Z-type hanging plate 1 installation site
It is existing weight mounting hole on the hanging yoke plate of wire suspension string, it is to avoid replacing hanging yoke plate, when having saved transformation and having a power failure
Between and the engineering time.
Pin down string upper end to connect with suspension insulator by Z-type hanging plate 1, lower end is connected by right angle fixture with tower body main material
Connect；According to minimum discharging gap, the length of suspension insulator, it is determined that pining down the initial length of string；By the limit of insulator chain
Tension load and maximum deflection angle, calculate the optimal effective rigidity of spring；Extension spring 7 is used in parallel, and rigidity halves, greatly
The weight of spring is reduced, the safe operation of power transmission tower is further ensured that.
Preferred embodiment of the present utility model is the foregoing is only, is not whole embodiments of the present utility model,
Be not used to limit the utility model, all any modifications within spirit of the present utility model and principle, made, equivalent,
Improve etc., should be included within protection domain of the present utility model.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art, in order to prominent
Go out innovative characteristicses of the present utility model, above-mentioned technical characteristic will not be repeated here.
Claims (8)
1. a kind of inclined composite insulator of transmission tower flexible windproof pins down string, it is characterised in that including composite insulator, synthesis
The top of insulator is located at Transmission Tower wire suspension string end, and the bottom of composite insulator is provided with height-adjustable connection
Part, connector is fixed by elastomeric element with tower body or cross-arm, and the elastomeric element is extension spring, can be according to composite insulator
Force-bearing situation deforms and is recovered, to extend the windage yaw response time of suspension string.
2. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 1 pins down string, it is characterised in that
The connector includes height-adjustable DB adjustment plates, PT adjustment plates, and DB adjustment plates one end is exhausted with synthesis by safety bolt
Edge is fixed.
3. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 2 pins down string, it is characterised in that
The DB adjustment plates are connected by p-type hanging plate with elastomeric element.
4. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 3 pins down string, it is characterised in that
When elastomeric element includes multiple extension springs, the top and bottom of the elastomeric element respectively sets L-type yoke plate, by L-type yoke plate
Elastomeric element is connected with described P type hanging plates.
5. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 1 pins down string, it is characterised in that
The composite insulator top sets at least two links, and link is fixed with tower body by yoke plate and realizes Mulit-point Connection.
6. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 5 pins down string, it is characterised in that
Hanging plate connection is set between the link and tower body.
7. a kind of inclined composite insulator of transmission tower flexible windproof according to claim 1 pins down string, it is characterised in that
The composite insulator top is connected the single suspension of realization with tower body by a hanging plate.
8. a kind of transmission tower inclined structure of flexible windproof, it is characterised in that including located at the adjustable of composite insulator bottom
The connector of height, sets the hole of multiple different heights on connector, the hole on connector is connected with hanging plate, and hanging plate passes through
At least one spring is fixed with tower body or cross-arm, and the setting of spring is extending windage yaw response time of suspension string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141780.2U CN206225951U (en) | 2016-10-20 | 2016-10-20 | A kind of inclined composite insulator of transmission tower flexible windproof pins down string and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141780.2U CN206225951U (en) | 2016-10-20 | 2016-10-20 | A kind of inclined composite insulator of transmission tower flexible windproof pins down string and structure |
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| Publication Number | Publication Date |
|---|---|
| CN206225951U true CN206225951U (en) | 2017-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621141780.2U Withdrawn - After Issue CN206225951U (en) | 2016-10-20 | 2016-10-20 | A kind of inclined composite insulator of transmission tower flexible windproof pins down string and structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374412A (en) * | 2016-10-20 | 2017-02-01 | 山东电力工程咨询院有限公司 | Flexible wind-deflection-protection composite insulator containment string for transmission tower, method and structure |
| CN112018716A (en) * | 2020-09-21 | 2020-12-01 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
-
2016
- 2016-10-20 CN CN201621141780.2U patent/CN206225951U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374412A (en) * | 2016-10-20 | 2017-02-01 | 山东电力工程咨询院有限公司 | Flexible wind-deflection-protection composite insulator containment string for transmission tower, method and structure |
| CN106374412B (en) * | 2016-10-20 | 2018-06-05 | 山东电力工程咨询院有限公司 | A kind of inclined composite insulator of transmission tower flexible windproof restrains string, method and structure |
| CN112018716A (en) * | 2020-09-21 | 2020-12-01 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
| CN112018716B (en) * | 2020-09-21 | 2021-12-28 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20180605 |