CN106448952B - Y types strain insulator string and anchor support - Google Patents
Y types strain insulator string and anchor support Download PDFInfo
- Publication number
- CN106448952B CN106448952B CN201610890940.1A CN201610890940A CN106448952B CN 106448952 B CN106448952 B CN 106448952B CN 201610890940 A CN201610890940 A CN 201610890940A CN 106448952 B CN106448952 B CN 106448952B
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- Prior art keywords
- anchor support
- strain insulator
- yoke plate
- types
- gold utensil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/12—Special features of strain insulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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Abstract
The invention discloses a kind of Y types strain insulator string and anchor support, belong to technical field of electric power transmission.Y type strain insulator strings include：Two strain insulator-strings, the first connection gold utensil, the first extending structure, the second connection gold utensil and the first triangle yoke plate, the first triangle yoke plate are shaped as triangle；The drift angle of first triangle yoke plate passes sequentially through the first connection gold utensil, the first extending structure and the second connection gold utensil and is connected with anchor support, and two base angles of the first triangle yoke plate are connected with two strain insulator-strings respectively.Anchor support includes the hanging point of Y type strain insulator strings, and Y type strain insulator strings are mounted on the hanging point.The present invention reduces the unbalanced tensile force that anchor support is born by the flexible connection of Y types strain insulator string and anchor support, and then reduces the tower weight of anchor support, has saved construction investment.
Description
Technical field
The present invention relates to technical field of electric power transmission, more particularly to a kind of Y types strain insulator string and anchor support.
Background technology
In technical field of electric power transmission, the transmission of electricity of long range is realized by overhead transmission line, overhead transmission line
Generally carried using power transmission tower and cross-arm is installed on wire, power transmission tower, and insulator chain is connected with by cross-arm.
Power transmission tower is generally divided into tangent tower and anchor support, and the insulator chain of tangent tower is connected to immediately below cross-arm, and direction is
Vertical, the vertical load and wind for being solely subjected to wire causes horizontal loading；And insulator chain and the both sides of cross-arm of anchor support
It is connected, direction is consistent with wire direction, and it not only needs the vertically and horizontally load for bearing wire, in addition it is also necessary to bear of wire
Power load.Anchor support is mainly used in circuit corner, line terminal and is limited area by landform.
In the prior art, the insulator chain of anchor support both sides close to the side of steel tower by connection gold utensil respectively with anchor support
Cross-arm connection, be connected by strain clamp with wire close to circuit side.
During the present invention is realized, inventor has found that prior art at least has problems with：
Anchor support is in heavy icing area running, and anchor support is born under the operating mode such as uneven icing operating mode and broken string
Unbalanced tensile force is larger, and then causes the increase of steel tower weight, and economy declines.
The content of the invention
Cause tower weight overweight because of force unbalance to solve tension tower conducting wire in the prior art, economic cost performance is low
Problem, the embodiments of the invention provide a kind of Y types strain insulator string and anchor support.The technical scheme is as follows：
On the one hand there is provided a kind of Y types strain insulator string, the Y types strain insulator string includes：
Two strain insulator-strings, the first connection gold utensil, the first extending structure, the second connection gold utensil and the first triangle yoke plate, it is described
The first triangle yoke plate is shaped as triangle；
The drift angle of the first triangle yoke plate passes sequentially through first connection gold utensil, first extending structure and described
Second connection gold utensil is connected with anchor support, and two base angles of the first triangle yoke plate are connected with described two strain insulator-strings respectively.
Optionally, each strain insulator-string includes：The 3rd connection gold utensil that is sequentially connected, the second extending structure, the 4th company
Gold utensil and the second triangle yoke plate are connect, wherein, the 3rd connection gold utensil is connected with the base angle of the first triangle yoke plate, and described
Four connection gold utensils are connected with the drift angle of the second triangle yoke plate；
Two base angles of the second triangle yoke plate be sequentially connected respectively two right angle hanging plates, two ball-eyes, two
Insulator chain, two socket-clevis eyes, yoke plate, two right angle hanging plates, two adjustment plates, two the 5th connection gold utensils and two strain insulators
Wire clamp.
Optionally, the insulator chain is suspended porcelain insulator string.
Optionally, the adjustment plate is DB type adjustment plates.
Optionally, the ball-eye is the ball head structure being sequentially connected, column structure and loop configuration, the ring junction
Structure is connected with the right angle hanging plate；
The ball head structure is connected with the insulator chain.
Optionally, first extending structure is any of extension ring, PT types adjustment plate and extension rod；
Second extending structure is any of extension ring, PT types adjustment plate and extension rod.
Optionally, the first triangle yoke plate is shaped as isosceles triangle.
On the other hand there is provided a kind of anchor support, the cross-arm end of the anchor support is provided with the Y types strain insulator
The hanging point of string, the Y types strain insulator string is mounted on the hanging point.
Optionally, the anchor support is the dry font anchor support of single loop or single loop wine cup shape anchor support or double loop umbrella shape
Anchor support or double loop cydariform anchor support.
Optionally, the anchor support also includes：Wire jumper insulator chain；
The wire jumper insulator chain upper end is connected with the cross-arm end, and the lower end of the wire jumper insulator chain, which is mounted with, matches somebody with somebody
Pouring weight, and isolate two wires and be connected respectively with the strain clamp in two strain insulator-strings of the Y types strain insulator string.
The beneficial effect that the technical scheme that the present invention is provided is brought is：
A kind of Y types strain insulator string and anchor support that the present invention is provided, pass through triangle yoke plate, extending structure and two companies
Connect gold utensil formed it is flexible hang string and be flexibly connected with the cross-arm end of anchor support, compensate Y type strain insulators by flexibility hangs string
There is the both sides of the insulator Tension Difference caused by out-of-balance force or wire fracture in string, reduce anchor support and born not
Balance tension, and then the tower weight of anchor support is reduced, save construction investment.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of Y types strain insulator string structural representation provided in an embodiment of the present invention；
Fig. 2 is a kind of U-shaped hanging ring structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of concrete structure schematic diagram of strain insulator-string provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of DB adjustment plates provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of ball-eye provided in an embodiment of the present invention；
Fig. 6 is a kind of partial structural diagram of anchor support provided in an embodiment of the present invention.
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining principle of the invention together with specification.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the present invention provides a kind of Y types strain insulator string, as shown in figure 1, the Y types strain insulator string 0 includes：
Two strain insulator-strings 01, the first connection gold utensil 021, the first extending structure 03, the second connection gold utensil 022 and the first triangle
Yoke plate 05, the first triangle yoke plate 05 is shaped as triangle；The drift angle of first triangle yoke plate 05 passes sequentially through the first connection gold utensil
021st, the first extending structure 03 and the second connection gold utensil 022 are connected with anchor support, two base angles difference of the first triangle yoke plate 05
It is connected with two strain insulator-strings 01.
Optionally, the shape of the first triangle yoke plate can be isosceles triangle.Compared to general its structure of triangle yoke plate
It is more stable.
It should be noted that in embodiments of the present invention, it is preferred that above-mentioned first connection gold utensil can for trunnion hanging panel or
U-shaped link, the second connection gold utensil can be U-shaped link, and the first and second connection gold utensils can also be other connection gold utensils, can be with
Selected according to practical situations, the embodiment of the present invention is not limited this.
Further, U-shaped link can be a kind of U-shaped link 021 as illustrated in FIG. 2, and the U-shaped link 021 is by U-shaped
Structure 0211 and clamping screw 0212 are constituted, further, and the U-shape structure 0211 can make U-shaped link 021 and such as Fig. 1 institutes
The the first extending structure 03 formation flexible connection shown, and it is locked by clamping screw 0212, and the extending structure 03 can be to prolong
Long ring.
In embodiments of the present invention, Y types strain insulator string is connected by the first connection gold utensil, the first extending structure, second
The connection of gold utensil and the first triangle yoke plate is connect, flexible hang is formed and goes here and there and be connected with the cross-arm end of anchor support, strain insulator can be caused
Tower hangs string in the uneven icing operating mode and broken string operating mode of heavy icing area, by flexibility to be had absolutely to compensate in Y type strain insulator strings
The both sides of edge Tension Difference caused by out-of-balance force or wire fracture, reduces the imbalance that anchor support is born
Power, and then the tower weight of anchor support is reduced, save construction investment.Engineering practice shows, uses Y types strain insulator string can be with
Common single loop is done to the unbalanced tensile force reduction by 15%~25% of font anchor support, broken string tension force can reduce more than 20%.With
Conventional strain insulator-string is compared, and in 30mm (millimeter) weights ice-covering area, can be subtracted anchor support tower weight according to Y types strain insulator string
It is small by 5% or so, by taking 220kV (kilovolt) single loop steel tower as an example, 1 ton of tower weight can be reduced.
In summary, a kind of Y types strain insulator string provided in an embodiment of the present invention, passes through triangle yoke plate, extending structure
Flexibility extension string is formed with two connection gold utensils and is flexibly connected with the cross-arm end of anchor support, by flexibility extension string is resistance to compensate Y types
There is the both sides of the insulator Tension Difference caused by out-of-balance force or wire fracture in insulator chain, reduce anchor support institute
The unbalanced tensile force born, and then the tower weight of anchor support is reduced, save construction investment.
Specifically, as shown in figure 3, it illustrates a kind of concrete structure diagram of strain insulator-string 01, each strain insulator-string 01 includes：According to
The 3rd connection gold utensil 0111, the second extending structure 011, the 4th connection gold utensil 0112 and the second triangle yoke plate 012 of secondary connection, its
In, the 3rd connection gold utensil 0111 is connected with the base angle of the first triangle yoke plate (not drawn in Fig. 3), the 4th connection gold utensil 0112 and
The drift angle connection of two triangle yoke plates 012；Two base angles of the second triangle yoke plate 012 be sequentially connected respectively two right angle hanging plates 013,
Two ball-eyes 014, two insulator chains 015, two socket-clevis eyes 016, yoke plate 017, two right angle hanging plates 013, two
Adjustment plate 018, two the 5th connection gold utensils 0113 and two strain clamps 019.Wherein, right angle hanging plate 013, ball-eye 014,
Socket-clevis eye 016, yoke plate 017 and right angle hanging plate 013 are as connection gold utensil, and adjustment plate is used to enter the connection distance of strain insulator-string
Row adjustment, strain clamp is used to clamp wire.The selection of 3rd, the 4th and the 5th connection gold utensil may be referred to above-mentioned first and
The selection of two connection gold utensils, preferably U-shaped link, the embodiment of the present invention will not be described here.
It is preferred that, above-mentioned insulator chain can be suspended porcelain insulator string.It should be noted that in the embodiment of the present invention
In, insulator chain is made up of multiple insulators, and the selection mode of insulator can have a variety of, and the embodiment of the present invention is not limited herein
It is fixed.Example, the selection of insulator can be composite material insulator or glass insulator also either ceramic insulator, can be with
Selected according to practical situations.
Further, in embodiments of the present invention, adjustment plate can be a kind of DB types adjustment plate 018 as shown in Figure 4, its
Surface is provided with connection through hole 0181 and regulation through hole 0182, and connection through hole 0181 is connected with the right angle hanging plate of strain insulator-string, adjusted
Through hole 0182 is connected with the 5th connection gold utensil of strain insulator-string.According to National Standard of the People's Republic of China, adjustment plate is code name：
UDC 621.315.6；Numbering：Adjustment plate shown in GB 2330.1-85 standards, adjustment plate type is DB type adjustment plates, its chi
Very little and stress size may be referred to the standard, and the standard is applied to overhead power line and electric substation's adjustment insulator chain and led
The adjustment plate of line length.
In embodiments of the present invention, the specifically chosen mode of the first extending structure and the second extending structure has a variety of, can be with
Selected according to actual conditions, the embodiment of the present invention is not limited this.Example, the first extending structure and the second extension knot
Structure can for any of extension ring, PT types adjustment plate and extension rod, it is necessary to explanation, the size of PT type adjustment plates and by
Power size may be referred to above-mentioned adjustment plate code name：UDC621.315.6；Numbering：The GB2330.1-85 People's Republic of China (PRC)
National standard, the embodiment of the present invention will not be described here.
Further, as shown in figure 5, it illustrates a kind of ball-eye structural representation provided in an embodiment of the present invention,
Ball-eye is the ball head structure 0141 being sequentially connected, column structure 0142 and loop configuration 0143, loop configuration 0143 with such as
Right angle hanging plate 013 shown in Fig. 3 is connected；Ball head structure 0141 is connected with insulator chain 015 shown in Fig. 3.It should be noted that absolutely
The end of insulator is provided with socket arrangement in edge substring, and the socket arrangement can coordinate with the ball head structure of ball-eye and connect
Connect, enhance the reliability of connection.
The embodiment of the present invention provides a kind of anchor support, as shown in fig. 6, to be provided with Y type strain insulators exhausted for the end of cross-arm 1 of anchor support
Hanging point A, the Y type strain insulator string 0 of edge substring 0 is mounted on hanging point A.
Further, anchor support also includes：Wire jumper insulator chain 11；The upper end of wire jumper insulator chain 11 connects with the end of cross-arm 1
Connect, the lower end of wire jumper insulator chain 11 is mounted with balancing weight 12, and isolates the two of two wires and Y types strain insulator string 0
Strain clamp in individual strain insulator-string is connected respectively.Wire jumper insulator chain passes through two wires and corresponding strain clamp isolated
Connection, forms triangular structure, adds the steadiness of Y type strain insulator strings, control leading for Y type strain insulator strings
Line electric clearance, makes work of the anchor support under strong wind operating mode safer.It should be noted that during work, if
The electric clearance of wire meets wire when being capable of the demand of trouble free service, can be not provided with wire jumper insulator chain, to avoid increase
Unnecessary cost.
It should be noted that the turriform of the anchor support can have a variety of, current supply circuit number can also be single loop or double back
Road, specific tower can be selected according to actual conditions, and the embodiment of the present invention is not limited this, example, the anchor support
Can be that the dry font anchor support of single loop or single loop wine cup shape anchor support or double loop umbrella shape anchor support or double loop cydariform are resistance to
Open tower.
In summary, a kind of Y types strain insulator string and anchor support provided in an embodiment of the present invention, by triangle yoke plate,
Extending structure and two connection gold utensils form flexibility and hang string and be flexibly connected with the cross-arm end of anchor support, are mended by flexibility extension string
Repaying has the both sides of the insulator Tension Difference caused by out-of-balance force or wire fracture in Y type strain insulator strings, reduce
The unbalanced tensile force that anchor support is born, and then the tower weight of anchor support is reduced, save construction investment.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the Y types of foregoing description are resistance to
The specific work process of insulator chain and anchor support is opened, the corresponding process in preceding method embodiment is may be referred to, herein no longer
Repeat.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of Y types strain insulator string, it is characterised in that including：
Two strain insulator-strings, the first connection gold utensil, the first extending structure, the second connection gold utensil and the first triangle yoke plate, described first
Triangle yoke plate is shaped as triangle；
The drift angle of the first triangle yoke plate passes sequentially through first connection gold utensil, first extending structure and described second
Connection gold utensil is connected with anchor support, and two base angles of the first triangle yoke plate are connected with described two strain insulator-strings respectively；
Each strain insulator-string includes：The 3rd connection gold utensil, the second extending structure, the 4th connection gold utensil and second being sequentially connected
Triangle yoke plate, wherein, the 3rd connection gold utensil is connected with the base angle of the first triangle yoke plate, the 4th connection gold utensil with
The drift angle connection of the second triangle yoke plate；
Two base angles of the second triangle yoke plate are sequentially connected two right angle hanging plates, two ball-eyes, two insulation respectively
Substring, two socket-clevis eyes, yoke plate, two right angle hanging plates, two adjustment plates, two the 5th connection gold utensils and two resistance to bracing cables
Folder.
2. Y types strain insulator string according to claim 1, it is characterised in that
The insulator chain is suspended porcelain insulator string.
3. Y types strain insulator string according to claim 1, it is characterised in that
The adjustment plate is DB type adjustment plates.
4. Y types strain insulator string according to claim 1, it is characterised in that
The ball-eye is the ball head structure being sequentially connected, column structure and loop configuration, the loop configuration with it is described straight
Angle hanging plate connection；
The ball head structure is connected with the insulator chain.
5. Y types strain insulator string according to claim 1, it is characterised in that
First extending structure is any of extension ring, PT types adjustment plate and extension rod；
Second extending structure is any of extension ring, PT types adjustment plate and extension rod.
6. Y types strain insulator string according to claim 1, it is characterised in that
The first triangle yoke plate is shaped as isosceles triangle.
7. a kind of anchor support, it is characterised in that the cross-arm end of the anchor support sets any just like claim 1 to 6 described
Y type strain insulator strings hanging point, the Y types strain insulator string is mounted on the hanging point.
8. anchor support according to claim 7, it is characterised in that the anchor support is the dry font anchor support of single loop or list
Loop wine cup shape anchor support or double loop umbrella shape anchor support or double loop cydariform anchor support.
9. the anchor support according to claim 7 or 8, it is characterised in that
The anchor support also includes：Wire jumper insulator chain；
The wire jumper insulator chain upper end is connected with the cross-arm end, and the lower end of the wire jumper insulator chain is mounted with counterweight
Block, and isolate two wires and be connected respectively with the strain clamp in two strain insulator-strings of the Y types strain insulator string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890940.1A CN106448952B (en) | 2016-10-12 | 2016-10-12 | Y types strain insulator string and anchor support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890940.1A CN106448952B (en) | 2016-10-12 | 2016-10-12 | Y types strain insulator string and anchor support |
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| Publication Number | Publication Date |
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| CN106448952A CN106448952A (en) | 2017-02-22 |
| CN106448952B true CN106448952B (en) | 2017-08-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430088A (en) * | 2020-04-01 | 2020-07-17 | 广东电网有限责任公司 | Insulator string group and strain section |
| CN112878787A (en) * | 2021-02-24 | 2021-06-01 | 江苏神马电力股份有限公司 | Composite cross arm and power transmission tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102810364B (en) * | 2012-07-31 | 2016-08-17 | 中国南方电网有限责任公司超高压输电公司 | ± 500kV multiple-circuit on same tower presss from both sides duplex V-type porcelain insulating substring with single hanging point two-wire |
| JP5830482B2 (en) * | 2013-03-21 | 2015-12-09 | 日本碍子株式会社 | Lightning arrester mounting structure in tension insulator |
| CN203377037U (en) * | 2013-07-19 | 2014-01-01 | 中国电力工程顾问集团西北电力设计院 | High altitude region 330kV AC line duplex strain insulator string |
| CN104240867A (en) * | 2014-09-22 | 2014-12-24 | 国家电网公司 | Double bundle conductor composite strain insulator string |
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| CN106448952A (en) | 2017-02-22 |
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