CN206693726U - A kind of umbellate form composite material cross arm tower - Google Patents
A kind of umbellate form composite material cross arm tower Download PDFInfo
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- CN206693726U CN206693726U CN201720297096.1U CN201720297096U CN206693726U CN 206693726 U CN206693726 U CN 206693726U CN 201720297096 U CN201720297096 U CN 201720297096U CN 206693726 U CN206693726 U CN 206693726U
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- oblique pull
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- 239000002131 composite material Substances 0.000 title claims abstract description 82
- 239000012212 insulator Substances 0.000 claims abstract description 108
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 150000001875 compounds Chemical class 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a kind of umbellate form composite material cross arm tower, including tower leg, tower body and the tower head being sequentially connected with；Also include being arranged at tower body side six groups are symmetrically distributed at left and right sides of tower body by oblique pull insulator and the molecular composite material cross arm of post insulator, six groups of cross-arms in king's font and steel tower axis；Every group of composite material 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 umbellate form composite material 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 " structure structure formula ".
It is new in Ning Dong-Shandong ± 660kV direct current transportation demonstration project and 750kV for lattice composite material pole tower
Pilot application has been carried out in boundary and northwest networking second channel engineering, has achieved larger economic benefit, but in cross-arm interposition
Floating potential generation has been put, it is longer with respect to cross-arm length；Using all-steel structure, bending effect of the load to shaft tower is big, shadow
Ring the stability and service life of tower structure.
【Utility model content】
The purpose of this utility model is to provide a kind of umbellate form composite material cross arm tower, to reduce conductor load to the curved of shaft tower
Torsion effect, 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 umbellate form composite material cross arm tower, including tower leg, tower body and the tower head being sequentially connected with；Also include being arranged at shaft tower
Six groups of side by oblique pull insulator and the molecular composite material cross arm of post insulator, six groups of cross-arm Chengwang fonts with steel tower
Axisymmetrical is distributed in tower body both sides；Every group of compound cross-arm includes two oblique pull insulators and two support insulators and connection
With steel hanging point device；One end of the oblique pull insulator is connected with the tower body, one end of the other end and the support insulator
Connection, the other end of the support insulator are connected with the tower body, and its tie point is located at the oblique pull insulator and the tower
The lower section of body tie point；One end that the oblique pull insulator is connected with the support insulator is provided with connection steel hanging point device；
The tie point of the oblique pull insulator and the support 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.
Umbellate form composite material cross arm tower of the present utility model, including be arranged at six groups of shaft tower side by oblique pull insulator and
The molecular composite material cross arm of post insulator, six groups of cross-arm Chengwang fonts are symmetrically distributed in tower body both sides with steel tower axis,
Mitigate bending of the load to shaft tower using composite material cross arm to act on, while material stiffness compensate for not by the rigidity of structure
Foot, adds the rigidity and bearing capacity of composite material tower, is easy to push away in high pressure, super-pressure and UHV transmission line engineering
Wide application.
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 and ground wire phase of umbellate form composite material cross arm tower simultaneously
Connect, earth wire support is connected with tower body steel structure, is grounded under drawing, with reaching the mesh of lightning protection；By ensureing that conducting wire hanging point is taken office
The distance of what metalwork is satisfied by insulation distance to reach the purpose of tower head insulation；Space truss system is formed by each component to pass
Pass load；By the full skirt on composite element surface, increase the retting-flax wastewater of cross-arm；Electric Field Distribution is improved by grading ring.
Relative to prior art, also there is following advantage in the utility model：
1st, width of corridor saves:Compared with conventional angle steel umbellate form tower, width of corridor saves 3.8m, up to 13%, advantageously reduces
Housing demolition amount and saving land resource；
2nd, low cost：Compared with conventional angle steel umbellate form tower, steel tower weight reduction about 16.6%, base concrete side's amount reduces
36.2%, comprehensive cost reduces about 10.3%；
3rd, pattern is attractive in appearance：Employ it is follow-on upwarp cross-arm umbellate form scheme, pattern is graceful, simple structure.
Reduce windage yaw discharge accident probability：Due to make use of the insulation characterisitic of composite, transmission tower structure is eliminated
Suspension insulator, reduce power transmission circuit caused by windage pollution flashover accident probability, 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 umbellate form transmission tower；
Fig. 2 is the utility model umbellate form composite material cross arm tower line chart；
Fig. 3 is the utility model umbellate form composite material cross arm tower electrical installation schematic diagram；
Fig. 4 a are the utility model umbellate form composite material cross arm tower cross-arm front view；
Fig. 4 b are the utility model umbellate form composite material cross arm tower cross-arm top view；
In figure：Support insulator 1, oblique pull insulator 2, steel construction earth wire support 3, tower body 4, tower leg 6, steel hanging point device
10th, the 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.
As shown in Fig. 2 a kind of umbellate form composite material cross arm tower line chart of the utility model, including six groups of composites are horizontal
Load, two sets of steel construction earth wire supports 3 and steel construction tower body 4, tower leg 6.
Six groups of composite material cross arms are arranged at the side of tower body 4, and six groups of composite material cross arms are by oblique pull insulator 2 and pillar
The compound cross-arm that insulator 1 forms is arranged symmetrically along tower body axis by king's font.Every group of composite material cross arm includes two oblique pulls
2, two support insulators 1 of insulator 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.
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.
Oblique pull insulator 2 is flexible piece, the both ends of composite oblique pull insulator 2 by U-shaped ring connector 15 respectively with
Steel hanging point device 10 is fixedly connected with tower body 4.
The support insulator 1 is rigid member, and support insulator 1 includes composite element, composite element both ends
Steel sleeve and cross plate connector 13；Two composite end steel sleeves with the bolt connection of steel hanging point device 10,
The root steel sleeve and cross plate connector 13 of two composites are bolted with tower body 4；Its one end with it is described
Tower body 4 is connected with steel plate.
The oblique pull insulator 2 and the tie point of the tower body 4 or the tie point of support insulator 1 and the tower body 4, position
In the middle part of tower body 4 or the lateral surface of tower body 4.Composite support insulator 1, the material of composite oblique pull insulator 2 are glass
Glass steel.
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 steel construction tower body 4 form by some angle iron components.
Full skirt is carried on insulator 2 and support insulator 1；Oblique pull insulator 2 and the upper end of support insulator 1 are equipped with
Grading ring 14, component of the compound cross-arm in by electric clearance and insulation distance coverage use composite element, institute
The material for stating composite element is fiberglass.
The umbellate form composite material cross arm tower realized according to above-mentioned technical proposal, by resin by steel bushing tubular type node, termination
Flange, U-shaped ring connector and cross plate connector solidify respectively is connected to composite support insulator, compound oblique pull
Insulator termination, blending bolt is integral by composite support insulator, the connection of composite inclined sliding insulator, forms composite
Cross-arm.The deficiency of material stiffness is compensate for by the rigidity of structure, the rigidity and bearing capacity of composite material tower is added, is easy in height
Popularization and application in 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 umbellate form
The compound cross-arm tower of umbellate form is that a space truss system is united, and it is to utilize the insulation characterisitic of composite in itself, real
The purpose now to insulate, while by the full skirt on surface, increase the retting-flax wastewater of cross-arm；Electric Field Distribution is improved by grading ring.Together
When conductor load and tower body wind load are converted into the xial feed of the compound cross-arm tower member of umbellate form, load is transferred to steel knot
Structure tower body.Cross-arm and tower body wherein pressure are transferred to tower body by two composite support insulators；And pulling force is multiple by two
Condensation material oblique pull insulator is delivered to tower body.
(4) lightning protection of the compound cross-arm tower of umbellate form and ground connection
The ground connection of the compound cross-arm tower of umbellate form is realized by outside steel structure member, by steel construction earth wire support 3 and ground
Line connects, and steel construction earth wire support 3 is connected with steel construction tower body 4, reaches the purpose of ground connection lightning protection.
(5) insulation configuration of the compound cross-arm tower of umbellate form
The compound cross-arm tower of umbellate form is by ensureing that the distance of conducting wire hanging point to any metalwork is satisfied by insulation distance to reach
The purpose of tower head insulation.Insulation distance mainly by different voltages, height above sea level and gradation for surface pollution carry out insulation configuration and
It is determined that.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 umbellate form composite material cross arm tower, it is characterised in that including the tower leg (6), tower body (4) and tower head being sequentially connected with；
Six 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, six groups of cross-arm Chengwang fonts are symmetrically distributed in tower body (4) both sides with steel tower axis；Every group of compound cross-arm includes two oblique pulls
Steel hanging point device (10) is used in insulator (2) and two support insulators (1) and connection；One end of the oblique pull insulator (2)
Be connected with the tower body (4), the other end is connected with the one end of the support insulator (1), the support insulator (1) it is another
End is connected with the tower body (4), and its tie point is located at the lower section of the oblique pull insulator (2) and the tower body (4) tie point；Institute
State one end that support insulator (1) is connected with the oblique pull insulator (2) and be provided with connection steel hanging point device (10)；The pillar
Insulator (1) and the tie point of the oblique pull insulator (2) are not less than the company of the support insulator (1) and the tower body (4)
Contact.
2. umbellate form composite material cross arm tower as claimed in claim 1, it is characterised in that the oblique pull insulator (2) is flexibility
Part, both ends by U-shaped ring connector (15) respectively with steel hanging point device (10) and tower body (4) bolt connection.
3. umbellate form composite material cross arm tower as claimed in claim 1, it is characterised in that the support insulator (1) is rigidity
Part, support insulator (1) include 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, the root steel bushing of two composites
Pipe and cross plate connector (13) are bolted with tower body (4)；Its one end is connected with the tower body (4) with steel plate.
4. the umbellate form composite material cross arm tower as described in any one of claim 2 to 3, it is characterised in that the oblique pull insulator
(2) it is located at tower body (4) middle part or tower body (4) lateral surface with the tie point of the tower body (4).
5. the umbellate form composite material cross arm tower as described in any one of claim 2 to 3, it is characterised in that the support insulator
(1) it is located at tower body (4) middle part or tower body (4) lateral surface with the tie point of the tower body (4).
6. the umbellate form composite material cross arm tower as described in any one of claim 2 to 3, it is characterised in that the oblique pull insulator
(2) or the support insulator (1) is front and rear two, steel hanging point device (10) and two described oblique pull insulators (2) or
It is approximate V-shaped after being connected between two described support insulators (1).
7. umbellate form composite material cross arm tower according to claim 1, it is characterised in that described oblique pull insulator (2) and
Full skirt is carried on support insulator (1)；Oblique pull insulator (2) and support insulator (1) upper end are equipped with grading ring (14).
8. umbellate form composite material cross arm tower according to claim 1, it is characterised in that compound cross-arm by electric clearance and
Component in insulation distance coverage uses composite element, and the material of the composite element is fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297096.1U CN206693726U (en) | 2017-03-24 | 2017-03-24 | A kind of umbellate form composite material cross arm tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720297096.1U CN206693726U (en) | 2017-03-24 | 2017-03-24 | A kind of umbellate form composite material cross arm tower |
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| Publication Number | Publication Date |
|---|---|
| CN206693726U true CN206693726U (en) | 2017-12-01 |
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ID=60444052
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720297096.1U Active CN206693726U (en) | 2017-03-24 | 2017-03-24 | A kind of umbellate form composite material cross arm tower |
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| Country | Link |
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| CN (1) | CN206693726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868286A (en) * | 2018-09-06 | 2018-11-23 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of four circuit complex pole tower of 500kV/220kV mixed pressure |
| 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 |
| CN111155821A (en) * | 2020-02-26 | 2020-05-15 | 北京凯道建设工程有限公司 | Column and triangular truss type tower |
-
2017
- 2017-03-24 CN CN201720297096.1U patent/CN206693726U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108868286A (en) * | 2018-09-06 | 2018-11-23 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of four circuit complex pole tower of 500kV/220kV mixed pressure |
| CN111155821A (en) * | 2020-02-26 | 2020-05-15 | 北京凯道建设工程有限公司 | Column and triangular truss type tower |
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