CN107975287A - A kind of compound cross-arm and power transmission rod - Google Patents
A kind of compound cross-arm and power transmission rod Download PDFInfo
- Publication number
- CN107975287A CN107975287A CN201711327982.5A CN201711327982A CN107975287A CN 107975287 A CN107975287 A CN 107975287A CN 201711327982 A CN201711327982 A CN 201711327982A CN 107975287 A CN107975287 A CN 107975287A
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- China
- Prior art keywords
- arm
- cross
- plug
- compound cross
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 229940125810 compound 20 Drugs 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- JAXFJECJQZDFJS-XHEPKHHKSA-N gtpl8555 Chemical compound OC(=O)C[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1CCC[C@@H]1C(=O)N[C@H](B1O[C@@]2(C)[C@H]3C[C@H](C3(C)C)C[C@H]2O1)CCC1=CC=C(F)C=C1 JAXFJECJQZDFJS-XHEPKHHKSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Insulators (AREA)
Abstract
The present invention discloses a kind of compound cross-arm, which includes plug, is wrapped in the insulating layer of mandrel outer and for connecting cross-arm to the fixing device of power transmission rod.Plug is arranged to the arc extended along longitudinally, two free ends of plug are used to fix conducting wire and arc-shaped, it is wrapped in the insulating layer outside plug to be adapted with plug size shape, cross-arm is erected on power transmission rod by fixing device, and two free ends are bent to the direction away from ground.Invention additionally discloses a kind of power transmission rod.By providing this compound cross-arm, it is possible to reduce cross-arm amount of deflection, so as to ensure the mechanical property of cross-arm, and causes when meeting the amount of deflection of identical standard, cross arm end cross-sectional area is reduced, so as to save material utilization amount.
Description
Technical field
The present invention relates to a kind of field of transmission equipment, is specifically a kind of compound cross-arm and power transmission rod.
Background technology
In field of electrical equipment, the important component of the cross-arm of transmission line of electricity as transmission tower, the both ends installation of cross-arm is exhausted
Edge and gold utensil, play a part of supporting conducting wire, lightning conducter.Current composite material cross arm is due to antifouling work, saving material, weight
The advantages that small, be gradually widely used in transmission line of electricity complex pole tower.
Composite material has the characteristics that high-strength low-modulus, composite material cross arm in the process of running, can be subject to lightning conducter,
The pulling force and Gravitative Loads of conducting wire, cause cross-arm both ends to be subject to downward pulling force, so as to cause the deformation of cross-arm, influence cross-arm
Structural behaviour.On the other hand, when compound cross-arm is horizontal positioned, bears end vertical direction load action, to ensure cross-arm-end
Portion's amount of deflection is no more than the amount of deflection desired value of standard, and product is in the case where meeting intensity requirement, it is necessary to which increasing section meets
Rigidity requirement, so as to cause product strength nargin larger, expends more material.
The content of the invention
It is an object of the invention to provide a kind of compound cross-arm, reduces the amount of deflection in cross-arm operational process, and maintaining
In the case of same structural properties, material utilization amount is reduced, saves cost.
To achieve the above object, the technical solution adopted by the present invention is as follows：A kind of compound cross-arm is provided, the compound cross-arm bag
Include along longitudinally extension plug and be wrapped in the insulating layer of mandrel outer, two free ends of plug be used to fixing conducting wire and
Free end is arc-shaped.
Wherein, plug is made of pultrude process or winding process.
Wherein, plug is solid bar or hollow pipe.Preferably, when plug is hollow pipe, reinforced resin can be filled in pipe,
To strengthen cross-arm mechanical property.
Wherein, the cross section of plug is circular or polygon.
Wherein, insulating layer uses sheath or umbrella skirt construction, it is preferable that insulating layer uses umbrella skirt construction, with described in increase
The creepage distance of cross-arm.Sheath or full skirt are formed with the plug using one piece injection.
Wherein, compound cross-arm is attached with power transmission rod by fixing device, and the free end of compound cross-arm is towards remote
Direction bending from the ground.
Wherein, fixing device includes cross-arm cavity volume and connector, and connector is used to connect compound cross-arm and power transmission rod, cross-arm
Cavity volume is used to house compound cross-arm.Cross-arm cavity volume contains the coupling part on lumen and both sides, and cross-arm cavity volume generally longitudinally extends, horizontal
The radian for carrying on a shoulder pole the radian cross-arm of cavity volume is consistent.The size shape of the cross section of lumen and the cross section of compound cross-arm are adapted, and are used
In placing compound cross-arm, the coupling part on both sides is provided with some connecting holes, by being connected with connector, is fixed on power transmission rod
On.
Wherein, connector includes anchor ear and connecting plate, and anchor ear is adapted with power transmission rod, embraces circumferentially around the power transmission rod
Hoop is connected with connecting plate.Connecting plate is equipped with some connecting holes, arc size shape and transmission of electricity of the anchor ear towards the side of power transmission rod
The cross section of bar is adapted, and the opposite side of anchor ear is equipped with connecting hole, is connected by nut with connecting plate.
Wherein, cross-arm cavity volume circumferentially surrounds compound cross-arm, and cross-arm cavity volume is connected with connecting plate.Cross-arm cavity volume is circumferentially around multiple
Cross-arm is closed, is provided at both ends with connecting hole, and be connected with connecting plate by nut.
In order to solve the above technical problems, the present invention provides another technical solution：A kind of power transmission rod is provided, including the body of rod and
The above-mentioned compound cross-arm being fixed on the body of rod.
To sum up, disclosed compound cross-arm has the advantages that：Compound cross-arm knot with certain radian
In product non-stress after mounting, end upwarps structure, can offset it is sagging caused by conducting wire dead weight after a part of cross-arm hanging wire,
Make under same bearing condition, cross arm end amount of deflection reduces.At this time, under same tip deflection restrictive condition, cross-arm section face
Product can suitably reduce, and then mitigate cross-arm weight, reduce material utilization amount and cost.
Brief description of the drawings
Fig. 1 is the structure diagram of one compound cross-arm of the embodiment of the present invention；
Fig. 2 is the structure diagram that one compound cross-arm of the embodiment of the present invention is connected to power transmission rod；
Fig. 3 is the structure diagram of one cross-arm cavity volume of the embodiment of the present invention；
Fig. 4 is the structure diagram of the compound cross-arm of the embodiment of the present invention two；
Fig. 5 is that the compound cross-arm of the embodiment of the present invention two is connected to the structure diagram of power transmission rod；
Fig. 6 is the structure diagram of the cross-arm cavity volume of the embodiment of the present invention two.
Embodiment
As requested, the embodiment of the present invention will be disclosed here.It is it is to be understood, however, that described herein
Embodiment be only the present invention exemplary, it can be presented as various forms.Therefore, what is disclosed here is specific thin
Section is not to be considered as limiting, and is merely possible to the basis of claim and is used as be used to instruct those skilled in the art
By in practice it is any it is appropriate in a manner of differently using the representational basis of the present invention, including using described herein various
Feature simultaneously combines the feature that may do not disclose clearly here.
Embodiment one：
As shown in Figure 1, compound cross-arm 10 includes the insulating layer of 102 form of plug 101 and sheath, sheath 102 is wrapped in core
The outside of rod 101, the sheath 102 forms integral structure with plug 101 by injection technique, for preventing 101 aging of plug.
Certainly, sheath 102 can also use the form of socket and plug 101 to link together.
Plug 101 is to pass through solid bar made of pultrude process, certainly, plug using glass fibre and epoxide resin material
101 can also be made of winding process, and the cross section of plug 101 is circle.Plug 101 extends along longitudinally, its is whole
The arc-shaped structure of body, the both ends of plug 101 are the free end 103 of suspension conducting wire, 103 arc-shaped structure of free end, plug 101
Other positions are linear.
As shown in Fig. 2, compound cross-arm 10 is connected to 12 on the body of rod by fixing device 11, the process of the body of rod 12 is being installed to
In, two free ends, 103 position is higher than the centre position 104 of compound cross-arm 10, so that side of the compound cross-arm away from ground
To bending.Fixing device 11 includes cross-arm cavity volume 111 and connector 112, and fixing device 11 uses alloy gold utensil, ensures cross-arm
It is close-coupled on the body of rod 12, there is good mechanical property.
As shown in figure 3, the radian of the wherein lengthwise arcuate structure of 111 being integrated of cross-arm cavity volume, its radian and cross-arm 10
Unanimously, the cross section of cross-arm cavity volume is " Ω " shape, and cavity volume both sides are attached equipped with connecting hole with connecting plate.
As shown in figure 3, connector is made of connecting plate 1121 and anchor ear 1122, connecting plate 1121 is provided with several connections
Hole, it is preferable that connecting plate 1121 has 4 connecting holes.Anchor ear 1122 is opening anchor ear, circumferentially around the body of rod 12, anchor ear 1122
Openend is provided with two butt strips, is set on each butt strip by two connecting holes, for being connected with connecting plate 112.In order to increase
The stability of strong compound cross-arm connection, can increase the quantity of anchor ear 1122, and multiple anchor ears 1122 are vertically arranged on the body of rod 12,
It is connected with connecting plate, strengthens connective stability, the present embodiment is provided with two anchor ears 1122.
Embodiment two：
As shown in figure 4, compound cross-arm 20 is made of plug 21 and insulating layer 22, and in this embodiment, 21 outer weekly form of plug
There is insulating layer 22 in face, and 22 form of insulating layer is sheath and full skirt form.Sheath 23 is wrapped in plug periphery surface, outside sheath 23
Face is provided with multi-disc full skirt 24 close to two free ends of plug, and the present embodiment, which is often held, sets three pieces full skirt, age inhibiting same
Shi Zengjia creepage distances.The material that plug 21 is taken is identical with embodiment, and in the present embodiment, plug 21 is hollow pipe, plug 21
Cross section be rectangle.Certainly, reinforced resin can be filled in plug 21, to strengthen stability.Two free ends of plug 21
25 as hanging wire end, for hanging conducting wire.
As shown in Figure 5 and Figure 6, compound cross-arm 20 is connected to the body of rod 28 by fixing device 27, compound in installation process
Medium position 26 of 25 position of free end of two suspension conducting wires of cross-arm higher than compound cross-arm 20 at fixing device.
Wherein fixing device 27 is made of cross-arm cavity volume 271 and connector 272, and the fixing device 27 is alloy gold
Tool.
Wherein, cross-arm cavity volume 271 and embodiment one are substantially the same, and difference is the cross section of its cavity volume 271, in order to hold
Receive the compound cross-arm 20 of rectangular section, the section of the middle chamber portion 2711 of cavity volume 271 is arranged to big with compound 20 cross section of cross-arm
The rectangle that small shape is adapted, cavity volume 271 extend in lengthwise, and overall arc-shaped, radian is consistent with the radian of compound cross-arm 20.
Compound cross-arm 20 is connected on the body of rod 28 by fixing device 27, and using the body of rod as symmetry axis, compound cross-arm symmetrically divides
Cloth.
The connector 272 is consistent with embodiment description, and connector 272 includes connecting plate 273 and anchor ear 274, connector
272 and the type of attachment of cross-arm cavity volume 271 and the body of rod and embodiment one it is consistent, which is not described herein again.
One embodiment of power transmission rod of the present invention, including the compound cross-arm in any of the above-described embodiment.
The technology contents and technical characterstic of the present invention have revealed that as above, it being understood, however, that in the creative ideas of the present invention
Under, those skilled in the art can make various changes and improve to said structure and material, including individually discloses or want here
Ask the combination of the technical characteristic of protection, it will be apparent that other combinations including these features.These deformations and/or combination each fall within this
In the involved technical field of invention, and fall into the protection domain of the claims in the present invention.
Claims (11)
- A kind of 1. compound cross-arm, it is characterised in that including：Along longitudinally extension plug and be wrapped in the mandrel outer Insulating layer, two free ends of the plug are used to fix conducting wire and the free end is arc-shaped.
- 2. compound cross-arm according to claim 1, it is characterised in that the plug is integrally arc-shaped along longitudinally.
- 3. compound cross-arm according to claim 1, it is characterised in that the plug passes through pultrude process or winding process system Into.
- 4. compound cross-arm according to claim 1, it is characterised in that the plug is solid bar or hollow pipe.
- 5. compound cross-arm according to claim 4, it is characterised in that the cross section of the plug is circular or polygon.
- 6. compound cross-arm according to claim 1, it is characterised in that the insulating layer is sheath or umbrella skirt construction.
- 7. compound cross-arm according to claim 1, it is characterised in that the compound cross-arm is fixed on defeated by fixing device When on the body of rod of electric pole, the free end is bent away from the direction on ground.
- 8. compound cross-arm according to claim 7, it is characterised in that the fixing device includes connector and cross-arm holds Chamber, the connector are used to connect the compound cross-arm and the body of rod, and the cross-arm cavity volume is used to house the compound cross-arm.
- 9. compound cross-arm according to claim 8, it is characterised in that the connector includes anchor ear and connecting plate, described Anchor ear is adapted, the anchor ear is connected with the connecting plate circumferentially around the body of rod with the body of rod.
- 10. compound cross-arm according to claim 8, it is characterised in that the cross-arm cavity volume circumferentially surrounds the compound horizontal stroke Load, the cross-arm cavity volume are connected with the connecting plate.
- 11. a kind of power transmission rod, including the body of rod and be fixed on the body of rod as claim 1-10 any one of them is compound Cross-arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327982.5A CN107975287B (en) | 2017-12-13 | 2017-12-13 | Composite cross arm and transmission pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327982.5A CN107975287B (en) | 2017-12-13 | 2017-12-13 | Composite cross arm and transmission pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107975287A true CN107975287A (en) | 2018-05-01 |
| CN107975287B CN107975287B (en) | 2024-02-23 |
Family
ID=62010104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711327982.5A Active CN107975287B (en) | 2017-12-13 | 2017-12-13 | Composite cross arm and transmission pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975287B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612916A (en) * | 2018-05-18 | 2018-10-02 | 云南电网有限责任公司电力科学研究院 | A kind of jet chimney based on transmission tower |
| WO2020125148A1 (en) * | 2018-12-17 | 2020-06-25 | 江苏中电科电力设计院有限公司 | Expandable high-voltage power transmission device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB378635A (en) * | 1931-08-05 | 1932-08-18 | Callenders Cable & Const Co | Improvements in poles for the support of electric transmission lines |
| CN202000728U (en) * | 2011-03-10 | 2011-10-05 | 青岛远征钢结构工程有限公司 | Cross arm of tower |
| CN102231250A (en) * | 2010-06-11 | 2011-11-02 | 托马西尼·多文力高 | Support rod for advertisement bar, plate, flag or banner |
| KR101337404B1 (en) * | 2013-05-29 | 2013-12-06 | 박준기 | Street light support connecting device |
| CN107165466A (en) * | 2017-06-09 | 2017-09-15 | 江苏神马电力股份有限公司 | Compound cross-arm and power transmission rod |
| CN207892344U (en) * | 2017-12-13 | 2018-09-21 | 江苏神马电力股份有限公司 | A kind of compound cross-arm and power transmission rod |
-
2017
- 2017-12-13 CN CN201711327982.5A patent/CN107975287B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB378635A (en) * | 1931-08-05 | 1932-08-18 | Callenders Cable & Const Co | Improvements in poles for the support of electric transmission lines |
| CN102231250A (en) * | 2010-06-11 | 2011-11-02 | 托马西尼·多文力高 | Support rod for advertisement bar, plate, flag or banner |
| CN202000728U (en) * | 2011-03-10 | 2011-10-05 | 青岛远征钢结构工程有限公司 | Cross arm of tower |
| KR101337404B1 (en) * | 2013-05-29 | 2013-12-06 | 박준기 | Street light support connecting device |
| CN107165466A (en) * | 2017-06-09 | 2017-09-15 | 江苏神马电力股份有限公司 | Compound cross-arm and power transmission rod |
| CN207892344U (en) * | 2017-12-13 | 2018-09-21 | 江苏神马电力股份有限公司 | A kind of compound cross-arm and power transmission rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612916A (en) * | 2018-05-18 | 2018-10-02 | 云南电网有限责任公司电力科学研究院 | A kind of jet chimney based on transmission tower |
| WO2020125148A1 (en) * | 2018-12-17 | 2020-06-25 | 江苏中电科电力设计院有限公司 | Expandable high-voltage power transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107975287B (en) | 2024-02-23 |
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