CN206636296U - A kind of upper font E glass-epoxies cross-arm tower - Google Patents
A kind of upper font E glass-epoxies cross-arm tower Download PDFInfo
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- CN206636296U CN206636296U CN201720297539.7U CN201720297539U CN206636296U CN 206636296 U CN206636296 U CN 206636296U CN 201720297539 U CN201720297539 U CN 201720297539U CN 206636296 U CN206636296 U CN 206636296U
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- cross
- oblique pull
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- 239000002131 composite material Substances 0.000 claims abstract description 55
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 16
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Abstract
The utility model discloses a kind of upper font E glass-epoxies cross-arm tower, including tower leg, tower body and the tower head being sequentially connected with；Also include being arranged at tower body side three groups are distributed in tower body both sides by oblique pull insulator and the molecular composite material cross arm of post insulator, three groups of cross-arms into upper font；Every group of compound cross-arm includes two oblique pull insulators and two support insulators and steel hanging point device；One end of the oblique pull insulator is connected with the tower body, and the other end is connected with one end of the support insulator, and the other end of the support insulator is connected with the tower body, and its tie point is located at the lower section of the oblique pull insulator and the tower body tie point；One end that the support insulator is connected with the oblique pull insulator is provided with connection steel hanging point device；On the premise of wire distance to the ground is ensured, tower structure provided by the utility model reduces tower height, reduces line corridor width, so as to reduce shaft tower tower weight and pole and tower foundation.
Description
【Technical field】
Transmission line of electricity technical field is the utility model is related to, more particularly to a kind of upper font E glass-epoxies
(abbreviation composite) cross-arm tower.
【Background technology】
Refer to shown in Fig. 1, current power transmission tower structure mainly uses all-steel structure, expends great deal of steel, consumes
The substantial amounts of mineral products energy, causes the serious pollution of ecological environment.And overhead line structures use all-steel structure, exist quality weight,
The problems such as construction transport and operation maintenance difficulty, therefore a kind of new trend using novel tower material as transmission tower field.
Composite (FRP) is due to good with high-strength, lightweight, corrosion-resistant, handling ease, designability and insulating properties
The advantages that, increasingly paid attention to by engineering circles, be that substitution steel construction is defeated especially for power transmission and transformation industry engineer applied institute pro-gaze
One of ideal material of electric pole tower structure.In recent years, with the further reduction of composite cost and the continuous progress of technique,
The research of domestic composite material pole tower is increasing, and gradually ripe.
For composite material pole tower, research both domestic and external in the past is concentrated mainly in " single lever-type ", in recent years, to lattice
Research also gradually increase, this is primarily due to the modulus of elasticity of composite and compression strength is relatively low, and single pole structure is held
Carry the strength and stiffness requirement that power is difficult to meet the big load shaft tower of high voltage, therefore extra-high voltage and extra high voltage network composite wood
Expect that tower should use the structural shape of " lattice ".But lattice composite material pole tower, but have suspension electricity on cross-arm centre position
Position produces, longer with respect to cross-arm length；Using all-steel structure, bending effect of the load to shaft tower is big, influences tower structure
Stability and service life.
【Utility model content】
The purpose of this utility model is to provide a kind of upper font E glass-epoxies cross-arm tower, to reduce wire lotus
The bending effect to shaft tower is carried, so as to reduce tower weight, material is saved, effectively reduces construction costs.
To reach above-mentioned purpose, the utility model, which adopts the following technical scheme that, to be achieved：
A kind of upper font E glass-epoxies cross-arm tower, including tower leg, tower body and the tower head being sequentially connected with；Also wrap
Include and be arranged at three groups of shaft tower side by oblique pull insulator and the molecular composite material cross arm of post insulator, three groups of cross-arms are into upper
Font is distributed in tower body both sides；Every group of compound cross-arm includes two oblique pull insulators and two support insulators and connection steel
Hanging point device；One end of the oblique pull insulator is connected with the tower body, and the other end is connected with one end of the support insulator,
The other end of the support insulator is connected with the tower body, and its tie point is located at the oblique pull insulator and is connected with the tower body
The lower section of point；One end that the support insulator is connected with the oblique pull insulator is provided with connection steel hanging point device；The branch
The tie point of post insulator and the oblique pull insulator is not less than the tie point of the support insulator and the tower body.
Further, the oblique pull insulator is flexible piece, both ends by U-shaped ring connector respectively with steel hanging point device and tower
Body bolt connection.
Further, the support insulator is rigid member, and support insulator includes composite element, composite element
The steel sleeve at both ends and cross plate connector；Two composite end steel sleeves with steel hanging point device bolt connection,
The root steel sleeve and cross plate connector of two composites are bolted with tower body；Its one end and the tower body
Connected with steel plate.
Further, the tie point of the oblique pull insulator and the tower body is located at tower body middle part or tower body lateral surface.
Further, the tie point of the support insulator and the tower body is located at tower body middle part or tower body lateral surface.
Further, the oblique pull insulator or the support insulator are front and rear two, steel hanging point device with it is described
It is approximate V-shaped after being connected between two oblique pull insulators or described two support insulators.
Further, full skirt is carried on described oblique pull insulator and support insulator；Oblique pull insulator and post insulator
Sub- upper end is equipped with grading ring.
Further, component of the compound cross-arm in by electric clearance and insulation distance coverage uses composite structure
Part, the material of the composite element is fiberglass.
Upper font E glass-epoxies cross-arm tower of the present utility model, including tower leg, tower body and the tower being sequentially connected with
Head；Also include being arranged at shaft tower side three groups are used by oblique pull insulator and the molecular composite material cross arm of post insulator
Composite material cross arm mitigates bending effect of the load to shaft tower, while the deficiency of material stiffness is compensate for by the rigidity of structure, increases
The rigidity and bearing capacity of composite material tower are added, have been easy to promote in high pressure, super-pressure and UHV transmission line engineering and answer
With significantly reducing width of corridor, reduce tower weight, save material, effectively reduce construction costs.
Further, steel bushing tubular type node, U-shaped ring connector and cross plate connector are solidified respectively by resin
It is connected to support insulator, tension composite insulator termination.The earth wire support of upper font E glass-epoxies cross-arm tower with
Ground wire connects, and earth wire support is connected with tower body steel structure, is grounded under drawing, with reaching the mesh of lightning protection；By ensureing that wire is hung
The distance of point to any metalwork is satisfied by insulation distance to reach the purpose of tower head insulation；Space truss is formed by each component
System transmits load；By the full skirt on composite element surface, increase the retting-flax wastewater of cross-arm；Electric field is improved by grading ring
Distribution.
Relative to prior art, the utility model has further the advantage that：
1st, width of corridor saves:Compared with conventional angle steel wineglass tower, width of corridor saves 21.2m, up to 52%, advantageously reduces
Housing demolition amount and saving land resource；
2nd, low cost：Compared with conventional angle steel wineglass tower, steel tower weight reduction about 15.22%, base concrete side's amount drop
Low 9.3%, comprehensive cost reduces about 6%；
3rd, pattern is attractive in appearance：Employ it is follow-on upwarp font schemes on cross-arm, pattern is graceful, simple structure.
4th, windage yaw discharge accident probability is reduced：Due to make use of the insulation characterisitic of composite, transmission tower knot is eliminated
The suspension insulator of structure, power transmission circuit caused by windage pollution flashover accident probability is reduced, improve line security operation level；
5th, ground connection is convenient：By reasonably arranging so that steel construction part is continuous, realizes the purpose of ground connection lightning protection.
6th, operation expense is low：Because composite has the characteristics of corrosion-resistant, high-low temperature resistant, stolen possibility is small,
Reduce the maintenance cost of circuit.
【Brief description of the drawings】
Fig. 1 is the structural representation of traditional all-steel wine glass-shaped transmission tower；
Fig. 2 is font E glass-epoxy cross-arm tower line charts on the utility model；
Fig. 3 is font E glass-epoxy cross-arm tower electrical installation schematic diagrams on the utility model；
Fig. 4 a are font E glass-epoxy cross-arm tower cross-arm front views on the utility model；
Fig. 4 b are font E glass-epoxy cross-arm tower cross-arm top views on the utility model；
In figure：Support insulator 1, oblique pull insulator 2, earth wire support 3, tower body 4, tower leg 6, steel hanging point device 10, first
Steel sleeve 11, the second steel sleeve 12, cross plate connector 13, grading ring 14, U-shaped ring connector 15.
【Embodiment】
In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It refer to Fig. 2, upper font E glass-epoxies cross-arm tower line chart of the present utility model, including three sets multiple
Condensation material cross-arm, two sets of steel construction earth wire supports 3 and tower body 4, tower leg 6.
Three sets of composite material cross arms are arranged at the side of tower body 4, and three sets are made up of oblique pull insulator 2 and support insulator 1
Compound cross-arm along tower body axis by upper font arrange.Often set composite material cross arm includes two oblique pull insulators, 2, two pillars
Insulator 1 and a set of steel hanging point device 10.
One end of the oblique pull insulator 2 is connected with the tower body 4, and one end of the other end and the support insulator 1 connects
Connect, the other end of the support insulator 1 is connected with the tower body 4, and its tie point is located at the oblique pull insulator 2 and the tower
The lower section of the tie point of body 4；One end that the support insulator 1 is connected with the oblique pull insulator 2 fills provided with connection steel hanging point
Put 10；The tie point of the support insulator 1 and the oblique pull insulator 2 is not less than the support insulator 1 and the tower body 4
Tie point.Support insulator 1 is located at tower with the tie point of the tower body 4 and the tie point of oblique pull insulator 2 and the tower body 4
The middle part of body 4 or the lateral surface of tower body 4.
Refer to shown in Fig. 4 a and Fig. 4 b, support insulator 1 includes composite element, composite element both ends difference
Provided with the first steel sleeve 11 and the second steel sleeve 12 and cross plate connector 13.
Composite material cross arm includes two support insulators 1, the second steel sleeve 12 of two support insulators 1 and cross
Plate connector 13 is connected by bolt and steel hanging point device 10；Grading ring 14 is fixed with second steel sleeve 12.Two
The steel sleeve 11 of support insulator 1 and cross plate connector 13 are fixedly connected with tower body 4.10, two branch of steel hanging point device
It is approximate " V "-shaped after being connected between post insulator 1.
The both ends of composite oblique pull insulator 2 are solid with steel hanging point device 10 and tower body 4 respectively by U-shaped ring connector 15
Fixed connection.
Composite support insulator 1, the material of composite oblique pull insulator 2 are fiberglass.
Steel hanging point device 10 includes a steel pipe, some pieces of connecting plates, two pieces of thread gripping-boards and stiffener.
Steel construction earth wire support 3 and tower body 4 form by some angle iron components.Steel construction earth wire support 3 connects with ground wire,
Steel construction earth wire support is connected with tower body 4, and steel construction earth wire support is electrically connected with tower body 4.
Component of the compound cross-arm in by electric clearance and insulation distance coverage uses composite element, described
The material of composite element is fiberglass.
The upper font E glass-epoxies cross-arm tower realized according to above-mentioned technical proposal, by resin by steel sleeve
Formula node, termination flange, U-shaped ring connector and cross plate connector solidify respectively is connected to composite post insulator
Son, composite inclined sliding insulator termination, blending bolt is integral by composite support insulator, the connection of composite inclined sliding insulator,
Form composite material cross arm.The deficiency of material stiffness is compensate for by the rigidity of structure, the rigidity of composite material tower is added and holds
Power is carried, is easy to the popularization and application in high pressure, super-pressure and UHV transmission line engineering.
(1) composite element end coupling
Composite element end coupling is all-steel structure, by resin by steel connector-steel bushing tubular type section
Point, U-shaped ring connector and cross plate connector solidify that to be connected to composite support insulator, compound oblique pull exhausted respectively
Edge termination.
(2) compound material insulation cross-arm
By bolt by composite element end coupling by two composite support insulators, two composites
Oblique pull insulator connects integral, composition compound material insulation cross-arm with a set of conducting wire hanging point device.
(3) Force principle of the compound cross-arm tower of font on
The upper compound cross-arm tower of font is that a space truss system is united, and it is to utilize the insulation characterisitic of composite in itself,
The purpose of insulation is realized, while by the full skirt on surface, increases the retting-flax wastewater of cross-arm；Electric Field Distribution is improved by grading ring.
Conductor load and tower body wind load are converted into the xial feed of the compound cross-arm tower member of upper font simultaneously, load is transferred to
Tower body.Cross-arm and tower body wherein pressure are transferred to tower body by two composite support insulators；And pulling force is compound by two
Material oblique pull insulator is delivered to tower body.
(4) lightning protection of the compound cross-arm tower of font and ground connection on
The ground connection of the upper compound cross-arm tower of font realized by outside steel structure member, by steel construction earth wire support 3 with
Ground wire connects, and steel construction earth wire support 3 is connected with tower body 4, reaches the purpose of ground connection lightning protection.
(5) insulation configuration of the compound cross-arm tower of font on
The upper compound cross-arm tower of font is by ensureing that the distance of conducting wire hanging point to any metalwork is satisfied by insulation distance to reach
To the purpose of tower head insulation.Insulation distance to different voltages, height above sea level and gradation for surface pollution mainly by carrying out insulation configuration
And determine.Meanwhile in the scope of the air gap circle influenceed for switching overvoltage and the air gap, using composite structure
Part, the purpose of insulation is realized, as shown in Figure 3.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific embodiment of the present utility model is only limitted to this, for the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should be all considered as
Belong to the utility model and determine scope of patent protection by the claims submitted.
Claims (8)
1. a kind of upper font E glass-epoxies cross-arm tower, it is characterised in that including tower leg (6), the tower body being sequentially connected with
And tower head (4)；
Three groups of composites being made up of oblique pull insulator (2) and support insulator (1) for also including being arranged at shaft tower side are horizontal
Load, three groups of cross-arms are distributed in tower body (4) both sides into upper font, and three groups of cross-arms are arranged along tower body axis by upper font；Every group compound
Cross-arm includes two oblique pull insulators (2) and two support insulators (1) and steel hanging point device (10) is used in connection；The oblique pull
One end of insulator (2) is connected with the tower body (4), and the other end is connected with the one end of the support insulator (1), the pillar
The other end of insulator (1) is connected with the tower body (4), and its tie point is located at the oblique pull insulator (2) and the tower body (4)
The lower section of tie point；One end that the support insulator (1) is connected with the oblique pull insulator (2) fills provided with connection steel hanging point
Put (10)；The tie point of the support insulator (1) and the oblique pull insulator (2) not less than the support insulator (1) with
The tie point of the tower body (4).
2. upper font E glass-epoxies cross-arm tower according to claim 1, it is characterised in that the oblique pull is exhausted
Edge (2) is flexible piece, both ends by U-shaped ring connector respectively with steel hanging point device (10) and tower body (4) bolt connection.
3. upper font E glass-epoxy cross-arm towers as claimed in claim 1, it is characterised in that the post insulator
Sub (1) be rigid member, and support insulator (1) includes composite element, the steel sleeve at composite element both ends and cross
Plate connector (13)；Two composite end steel sleeves with steel hanging point device (10) bolt connection, two composites
Root steel sleeve and cross plate connector (13) be bolted with tower body (4)；Its one end is used with the tower body (4)
Steel plate connects.
4. the upper font E glass-epoxies cross-arm tower as described in any one of claim 2 to 3, it is characterised in that described
The tie point of oblique pull insulator (2) and the tower body (4) is located in the middle part of tower body (4) or tower body (4) lateral surface.
5. the upper font E glass-epoxies cross-arm tower as described in any one of claim 2 to 3, it is characterised in that described
The tie point of support insulator (1) and the tower body (4) is located in the middle part of tower body (4) or tower body (4) lateral surface.
6. the upper font E glass-epoxies cross-arm tower as described in any one of claim 2 to 3, it is characterised in that described
Oblique pull insulator (2) or the support insulator (1) are front and rear two, and steel hanging point device (10) and two described oblique pulls are exhausted
It is approximate V-shaped after being connected between edge (2) or described two support insulators (1).
7. upper font E glass-epoxies cross-arm tower according to claim 1, it is characterised in that described oblique pull
Full skirt is carried on insulator (2) and support insulator (1)；Oblique pull insulator (2) and support insulator (1) upper end are equipped with
Grading ring.
8. upper font E glass-epoxies cross-arm tower according to claim 1, it is characterised in that compound cross-arm exists
Composite element, the material of the composite element are used by the component in electric clearance and insulation distance coverage
For fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297539.7U CN206636296U (en) | 2017-03-24 | 2017-03-24 | A kind of upper font E glass-epoxies cross-arm tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297539.7U CN206636296U (en) | 2017-03-24 | 2017-03-24 | A kind of upper font E glass-epoxies cross-arm tower |
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| Publication Number | Publication Date |
|---|---|
| CN206636296U true CN206636296U (en) | 2017-11-14 |
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ID=60258932
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720297539.7U Active CN206636296U (en) | 2017-03-24 | 2017-03-24 | A kind of upper font E glass-epoxies cross-arm tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN206636296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836935A (en) * | 2017-03-24 | 2017-06-13 | 国家电网公司 | A kind of upper font E glass-epoxies cross-arm tower |
| CN108952303A (en) * | 2018-08-30 | 2018-12-07 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of compound cross-arm narrow base tower in the double loop 330kV |
-
2017
- 2017-03-24 CN CN201720297539.7U patent/CN206636296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836935A (en) * | 2017-03-24 | 2017-06-13 | 国家电网公司 | A kind of upper font E glass-epoxies cross-arm tower |
| CN108952303A (en) * | 2018-08-30 | 2018-12-07 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of compound cross-arm narrow base tower in the double loop 330kV |
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