CN205617888U - Power transmission line shaft tower and wire cross arm structure thereof - Google Patents
Power transmission line shaft tower and wire cross arm structure thereof Download PDFInfo
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- CN205617888U CN205617888U CN201620400027.4U CN201620400027U CN205617888U CN 205617888 U CN205617888 U CN 205617888U CN 201620400027 U CN201620400027 U CN 201620400027U CN 205617888 U CN205617888 U CN 205617888U
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- cross
- power transmission
- transmission line
- cross arm
- line shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 150000001875 compounds Chemical class 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 38
- 238000007906 compression Methods 0.000 claims description 38
- 239000012212 insulator Substances 0.000 abstract description 13
- 239000000725 suspension Substances 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241001235022 Aplysia punctata Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The utility model discloses a power transmission line shaft tower and wire cross arm structure thereof, including setting up the compound cross arm on the crossbeam of body of the tower, compound cross arm include at least two set up in crossbeam surface receive depression bar and two piece at least pressed rod, each the one end that receives the depression bar links to each other in the node, and each pressed rod's one end with the node links to each other, each receive depression bar and pressed rod to be the insulator spindle. The utility model discloses a compound cross arm of setting on the crossbeam, the uphill side wire cross arm of replacement among the prior art because compound cross arm intensity is higher, can because the member of compound cross arm is the insulator spindle, consequently need not to hang the suspension insulator at many wires of mountain area line erection simultaneously, and then when setting up the power transmission line shaft tower, can not exhale height to reducing under the unchangeable circumstances of ground distance at the slope side wire of guaranteeing to go up a hill, and then has reduced the probability of suffering the thunderbolt. The utility model discloses still disclose the power transmission line shaft tower including above -mentioned wire cross arm structure, its beneficial effect as above.
Description
Technical field
This utility model relates to technical field of electric power, and the wire cross-arm particularly to a kind of power transmission line shaft tower is tied
Structure.This utility model further relates to a kind of power transmission line shaft tower including above-mentioned wire cross-arm structure.
Background technology
Along with the development of China's Electric Power Industry, increasing place is transmitted by the way of power transmission line shaft tower
Electric energy.
Power transmission line shaft tower is also iron tower of power transmission line, is generally divided in shape: wine glass-shaped, cathead,
Upper font, dry font and barrel shape five kinds, divided by purposes and have: anchor support, tangent tower, angle tower, transposition
Tower (restringing phase position tower), terminal tower and crossover tower etc., it is structurally characterized in that various tower is equal
Belonging to space truss structure, rod member is mainly made up of single equal leg angle or combination angle steel, and material generally uses
Q235 (A3F) and Q345 (16Mn) two kinds, is connected by burnished bolt, is cut by bolt between rod member
Power connects, and whole tower is made up of angle steel, junction steel plate and bolt, and individual part such as column foot etc. is by several blocks of steel
Plate is welded into a molectron, therefore galvanizing anticorrosion, erection extremely convenient of transporting and construct.
Being typically provided with wire cross-arm on power transmission line shaft tower, cross-arm is ingredient important in shaft tower,
Its effect is used to install insulator and gold utensil, to support wire, lightning conducter, and is allowed to protect by regulation
Hold certain safe distance.When mountain route sets up power transmission line shaft tower, designing important is to meet wire
Minimum distance to the ground and to reducing tower height on the premise of forest crossed crossing distance, reducing conductor height as far as possible.
As it is shown in figure 1, the structural representation that Fig. 1 is a kind of power transmission line shaft tower of the prior art.Setting up transmission of electricity
During line shaft tower, need to meet that steep side wire is minimum over the ground hands over span from, i.e. H2 in figure, and go down the hill
The distance to the ground of side, slope wire, i.e. H1 in figure often much larger than H2, the gradient more large time difference away from the most obvious,
So considerably increase the probability that side, lower hillside wire is struck by lightning.
Therefore, how when mountain route sets up power transmission line shaft tower, reduce the right of lower side, hillside wire as far as possible
Ground distance, with the probability that is struck by lightning of reduction, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide the wire cross-arm structure of a kind of power transmission line shaft tower, it is possible under reduction
The distance to the ground of uphill side wire, reduces the probability being struck by lightning.Of the present utility model another object is that carries
For a kind of power transmission line shaft tower including above-mentioned wire cross-arm structure.
For solving above-mentioned technical problem, this utility model provides the wire cross-arm structure of a kind of power transmission line shaft tower,
Including the compound cross-arm on the crossbeam being arranged at tower body, described compound cross-arm includes that at least two are arranged at institute
Stating the compression rod of beam surface and at least two tension members, one end of each described compression rod is connected in node,
And one end of each described tension member is connected with described node；Each described compression rod and tension member are insulating bar.
Preferably, between adjacent two described compression rods, and the folder between two described tension members that is connected
Angle is 30 °～60 °.
Preferably, the projection of each described tension member overlaps with the projection of each self-corresponding described compression rod,
And the angle between described tension member and the described compression rod of projection coincidence is 30 °～60 °.
Preferably, the shape of cross section of each described tension member is circle, and each described compression rod is transversal
Face shape is cross.
Preferably, described node is connected with described tower body by gusset plate, and the end of each described compression rod
It is connected with described tower body by cross plug board.
This utility model also provides for a kind of power transmission line shaft tower, including tower body be arranged at leading on described tower body
Line cross-arm structure, wherein, described wire cross-arm structure is the wire cross-arm structure described in any of the above-described item.
The wire cross-arm structure of power transmission line shaft tower provided by the utility model, mainly includes being arranged on tower body
Compound cross-arm transversely, this compound cross-arm mainly includes at least two pressurizeds being arranged on beam surface
Bar and at least two tension members, one end of each compression rod is connected in node, and one end of each tension member with should
Node is connected, and each compression rod and tension member are insulating bar.Wire cross-arm provided by the utility model is tied
Structure, is mainly replaced the uphill side wire cross-arm of power transmission line shaft tower in prior art by compound cross-arm, by
Include that many many compression rods of rod member that can be divided into two kinds of force-bearing types and Duo Gen are subject in this compound cross-arm
Pull bar, the rigidity of structure being therefore combined cross-arm is higher, can set up multiple conducting wires at mountain route.Meanwhile,
Owing to each compression rod and tension member are insulating bar, nothing on compound cross-arm the most provided by the utility model
Suspension insulator need to be set up again, so in the situation ensureing that steep side wire distance to the ground (H2) is constant
Under, lower uphill side wire distance to the ground (H1) will be reduced, and concrete reduction is highly suspension insulator
Length (generally about 3m).Therefore, wire cross-arm structure provided by the utility model, pass through
The compound cross-arm being arranged on tower body, replaces uphill side wire cross-arm of the prior art, due to compound horizontal stroke
Load include many for being respectively subjected to draw, the bar of compressive load, therefore stiffness and strength is higher, can be in mountain area
Construction of line multiple conducting wires, simultaneously because each bar bearing load is insulating bar, therefore without hanging
Suspension insulator, and then when setting up power transmission line shaft tower, steep side wire distance to the ground can ensured
(H2), in the case of constant, corresponding reduction exhales height, i.e. descends side, hillside wire distance to the ground (H1), fall
Low clearance is the length of suspension insulator, so reduces the probability that power transmission line shaft tower is struck by lightning.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiment of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the concrete structure schematic diagram of a kind of power transmission line shaft tower of the prior art；
Fig. 2 is the concrete structure schematic diagram of a kind of power transmission line shaft tower provided by the utility model；
Fig. 3 is the concrete structure schematic diagram of the compound cross-arm shown in Fig. 2；
Fig. 4 is the annexation schematic diagram of the compound cross-arm shown in Fig. 2 and tower body.
Wherein, in Fig. 1 Fig. 4:
Tower body 1, crossbeam 2, compound cross-arm 3, compression rod 301, tension member 302, node
303, gusset plate 4.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Refer to the concrete structure that Fig. 2 and Fig. 3, Fig. 2 are a kind of power transmission line shaft tower provided by the utility model
Schematic diagram, Fig. 3 is the concrete structure schematic diagram of the compound cross-arm shown in Fig. 2.
In a kind of detailed description of the invention provided by the utility model, the wire cross-arm knot of power transmission line shaft tower
Structure mainly includes compound cross-arm 3.This compound cross-arm 3 is arranged on the crossbeam 2 of tower body 1 i.e. prior art
The position of middle suspension suspension insulator.Obviously, compound cross-arm 3 is a kind of composite construction, concrete, this reality
Execute the compound cross-arm 3 in example and include many different types of rod member compression rods 301 and tension member 302.
Wherein, compression rod 301 is arranged on the surface of crossbeam 2, typically can set along the length direction of crossbeam 2
Put.And on the surface of crossbeam 2, it is provided with at least two compression rods 301, such as 2 or 4 etc..And
Each compression rod 301 distribution form not laid out in parallel on crossbeam 2 surface, but the one of each compression rod 301
End is connected in node 303, the aplysia punctata i.e. outwards dissipated for initial point with node 303.And tension member 302 is not
Being arranged on the surface of crossbeam 2, particular location can be located at the top of crossbeam 2, the quantity of same tension member 302
Also it is many, and each tension member 302 the most not laid out in parallel, but its one end is connected with node 303,
In divergent shape.So, if on the basis of node 303, then the rod member shape being combined cross-arm 3 is cantilever beam
The version being combined with truss.Seeing on the whole, each compression rod 301 defines triangle with tension member 302
Taper.It addition, compound cross-arm 3 is mainly used in the load bearing wire under various operating modes, wherein compression rod
301 are mainly used in bearing compressive stress load, and tension member 302 is primarily subjected to tension load.Both each departments
Its duty, separates being born the mode of two kinds of different load by same rod part before simultaneously.
The compound cross-arm 3 of this kind of structure, owing to plurality of rods part works simultaneously, and two kinds of rod member divides
Not undertaking different types of load, the structural strength being therefore combined cross-arm 3 is relatively big, can be on power transmission line shaft tower
Bear more wire, improve bearing capacity and the reliable operation degree of wire cross-arm structure, be struck by lightning or ground
During the disaster scenarios it such as shake, it is possible to increase shock resistance, vibration ability.
Meanwhile, each compression rod 301 in the present embodiment is, with tension member 302, the insulation that isolation material is made
Bar, therefore the insulating properties of wire cross-arm structure are sufficiently strong, so without arranging on power transmission line shaft tower again
It is exclusively used in and improves the suspension insulator of insulating properties between wire.Come from this, mountain area route sets up transmission of electricity
During line shaft tower, ensure steep wire distance to the ground (H2) constant in the case of, can correspondingly by
The height reduction of power transmission line shaft tower, owing to eliminating suspension insulator, therefore the length of suspension insulator is just
Be able in transmission pole tower height degree abatement so that transmission pole tower height degree entirety reduce, i.e. exhale high H1 or
Lower uphill side wire distance to the ground H1, when transmission pole tower height reduction, the most just reduces and suffers thunder
The probability hit, improves the service life of power transmission line shaft tower.
In sum, the wire cross-arm structure of power transmission line shaft tower provided by the utility model, by tower
Compound cross-arm 3 is set on the crossbeam 2 of body 1, replaces the steep side wire on power transmission line shaft tower in prior art
Cross-arm, due to this compound cross-arm 3 include many for the rod member bearing different loads type, therefore intensity is relatively
Greatly, it is possible to bear multiple wire erection, shock resistance, vibration ability are improved；Simultaneously because compound cross-arm 3
Various composition rod members are insulating bar, therefore meet cross-arm 3 and have enough insulating properties, so without again
Set suspension insulator power transmission line shaft tower is added, therefore can ensure steep side wire distance to the ground (H2)
In the case of constant, the corresponding height reducing power transmission line shaft tower, reduce lower uphill side wire over the ground simultaneously
Distance (H1), i.e. power transmission line shaft tower exhale height, so reduce further power transmission line shaft tower and are struck by lightning
Probability, improve the service life of power transmission line shaft tower.
Additionally, for the structure optimizing compound cross-arm 3, the present embodiment is by between adjacent two compression rods 301
Angle, and the angle between adjacent two tension members 302 is set to 30 °～60 °, such as 30 °,
45 ° and 60 ° etc..Certainly, the angle between adjacent two compression rods 301 with adjacent two tension members 302
It is not limited in above-mentioned angle.
Further, due to each compression rod 301 and the tension member 302 distribution on crossbeam 2, it is not in same
On one horizontal plane, and compression rod 301 is connected with node 303 with tension member 302 simultaneously, therefore, and each pressurized
Certain angle is there is also between bar 301 and each tension member 302.Concrete, it is contemplated that when setting up wire, many
The projection of layer conductor coincides the most mutually, therefore in the present embodiment the projection on crossbeam 2 of each tension member 302 with
The projection of each self-corresponding compression rod 301 coincides.And project the tension member 302 and pressurized coincided mutually
Angle between bar 301 may be alternatively provided as between 30 °～60 °, such as 30 °, 45 ° or 60 ° etc..When
So, angle between the two can also be remaining angle.
It addition, for the load-carrying ability of bearing improving each compression rod 301 and tension member 302, the present embodiment will
The shape of cross section of each tension member 302 is provided in round cross section, simultaneously by the cross section shape of each compression rod 301
Shape is set to cross section shape.Being arranged such, the tension member 302 of circular cross-section will possess in the axial direction
Relatively high tensile performance, and the compression rod 301 of cross section will possess relatively high pressure resistance energy in the axial direction.
Moreover, it is contemplated that plurality of rods part is both connected at node 303, in order to improve node 303 with horizontal
Connective stability between beam 2, node 303 is also connected by the present embodiment by gusset plate 4 tower body 1.Meanwhile,
Owing to one end of compression rod 301 is directly connected in node 303, therefore, the end of compression rod 301 also by
Cross plug board (its shape of cross section is cross) is connected with tower body 1.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model
In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein
These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (6)
1. the wire cross-arm structure of a power transmission line shaft tower, it is characterised in that include being arranged at tower body (1)
Crossbeam (2) on compound cross-arm (3), described compound cross-arm (3) includes that at least two are arranged at institute
State compression rod (301) and at least two tension members (302), each described compression rod on crossbeam (2) surface
(301) one end is connected in node (303), and one end of each described tension member (302) and described joint
Point (303) is connected；Each described compression rod (301) and tension member (302) are insulating bar.
Wire cross-arm structure the most according to claim 1, it is characterised in that be subject to described in adjacent two
Between depression bar (301), and the angle between adjacent two described tension members (302) is 30 °～60 °.
Wire cross-arm structure the most according to claim 2, it is characterised in that each described tension member
(302) projection overlaps with the projection of each self-corresponding described compression rod (301), and projection coincidence
Angle between described tension member (302) and described compression rod (301) is 30 °～60 °.
Wire cross-arm structure the most according to claim 3, it is characterised in that each described tension member (302)
Shape of cross section be circle, and the shape of cross section of each described compression rod (301) is cross.
Wire cross-arm structure the most according to claim 4, it is characterised in that described node (303)
It is connected with described tower body (1) by gusset plate (4), and the end of each described compression rod (301) is passed through
Cross plug board is connected with described tower body (1).
6. a power transmission line shaft tower, horizontal including tower body (1) and the wire being arranged on described tower body (1)
Load structure, it is characterised in that described wire cross-arm structure is that the wire described in any one of claim 1-5 is horizontal
Load structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620400027.4U CN205617888U (en) | 2016-05-05 | 2016-05-05 | Power transmission line shaft tower and wire cross arm structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620400027.4U CN205617888U (en) | 2016-05-05 | 2016-05-05 | Power transmission line shaft tower and wire cross arm structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205617888U true CN205617888U (en) | 2016-10-05 |
Family
ID=57025660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620400027.4U Active CN205617888U (en) | 2016-05-05 | 2016-05-05 | Power transmission line shaft tower and wire cross arm structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205617888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419952A (en) * | 2017-09-06 | 2017-12-01 | 武汉南瑞电力工程技术装备有限公司 | A kind of extra-high voltage composite insulation cross arm |
| EP4071323A4 (en) * | 2021-02-24 | 2024-05-08 | Jiangsu Shemar Electric Co Ltd | Composite cross arm and power transmission tower |
-
2016
- 2016-05-05 CN CN201620400027.4U patent/CN205617888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419952A (en) * | 2017-09-06 | 2017-12-01 | 武汉南瑞电力工程技术装备有限公司 | A kind of extra-high voltage composite insulation cross arm |
| EP4071323A4 (en) * | 2021-02-24 | 2024-05-08 | Jiangsu Shemar Electric Co Ltd | Composite cross arm and power transmission tower |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: State Grid Corporation of China Patentee after: CHONGQING ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: CHONGQING ELECTRIC POWER DESIGN INSTITUTE |