CN103993773A - Composite cross arm and power transmission tower with same - Google Patents
Composite cross arm and power transmission tower with same Download PDFInfo
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- CN103993773A CN103993773A CN201410226716.3A CN201410226716A CN103993773A CN 103993773 A CN103993773 A CN 103993773A CN 201410226716 A CN201410226716 A CN 201410226716A CN 103993773 A CN103993773 A CN 103993773A
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- arm
- mobile jib
- compound cross
- cross
- power transmission
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Abstract
The invention discloses a composite cross arm and a power transmission tower with the same. The composite cross arm comprises a main rod made of a glass reinforced plastic material, wherein the upper portion of a cross section of the main rod is provided with protrusions, and the protrusions are used for preventing ice and snow from attaching to the surface of the main rod. The power transmission tower comprises a power body and the cross arm connected onto the tower body, and the cross arm is the composite cross arm. The composite cross arm and the power transmission tower with the composite cross arm are simple in structure, low in manufacture cost and capable of meeting the requirement for ice and snow coating resistant performance.
Description
Technical field
The present invention relates to a kind of electric power transmission apparatus field, specifically a kind of compound cross-arm and with the power transmission tower of this compound cross-arm.
Background technology
Transmission tower is supporting structure important in transmission line of electricity, and its structure and material directly affect the many-sides such as construction speed, economy, reliability and installation, maintenance, the maintenance of transmission line of electricity.At present, use shaft tower comparatively widely to mainly contain several classes such as wooden stick, concrete frame and steel tower both at home and abroad in overhead transmission line, steel tower is shaft tower pattern the most frequently used in countries in the world high pressure and extra high voltage network.Traditional transmission tower is in the long-term various defects that expose in service, is mainly that corrosion resistance is poor, construction cost is high, line loss greatly, is easily sent out the problems such as interruption of service, and in the face of above problem, countries in the world are all at positive seeking breakthrough.Because composite material electrical insulation capability is good, and lightweight, intensity is high, endurance, corrosion-resistant, machine-shaping are convenient, easy care, Yi Bei thinks various countries to substitute the ideal material of existing shaft tower material, and compound cross-arm is that complex pole tower cross-arm partly adopts composite material.
Traditional compound cross-arm is that centre is provided with fiber reinforced plastics rod, at the external surface injection rubber full skirt of fiber reinforced plastics rod.At these fiber reinforced plastics rod two ends, be provided with flange, for connecting other members.Traditional various aspects of performance such as compound cross-arm insulation are good, however complex structure, manufacturing process flow complex steps, manufacturing cost is high.
Summary of the invention
For the deficiencies in the prior art, one of object of the present invention is to provide a kind of compound cross-arm, and this compound cross-arm is simple in structure, low cost of manufacture, and can meet the performance requirements such as anti-ice cover, snow.
For achieving the above object, the technology used in the present invention means are as follows: a kind of compound cross-arm, comprise the mobile jib of glass-reinforced plastic material, and the top of the cross section of this mobile jib is set to projection, and this projection is used for preventing that ice and snow is attached to above-mentioned mobile jib upper surface.This mobile jib can be Fiberglass-reinforced Plastics Pultrusion Technology And Its Products.
Preferably, the projection on the top of the cross section of above-mentioned mobile jib is arc.
Preferably, the projection on the top of the cross section of above-mentioned mobile jib is wedge angle.
Preferably, above-mentioned mobile jib is axially provided with corner angle, and these corner angle can be for location, and these corner angle also can be for dropping sleet fast.
Preferably, the bottom of above-mentioned mobile jib is the wedge angle to lower convexity.This wedge angle can be above-mentioned corner angle, can be also a plurality of wedge angles that axially arrange along this mobile jib.
Preferably, above-mentioned compound cross-arm also comprises the connector that is connected to above-mentioned mobile jib end.
Preferably, above-mentioned compound cross-arm surface is provided with ageing-resistant coating.More preferably, this ageing-resistant coating is fluorine carbon lacquer coat.
For the deficiencies in the prior art, two of object of the present invention is to provide a kind of power transmission tower, and this Transmission Tower is simple, low cost of manufacture, and can meet the performance requirements such as anti-ice cover, snow.
For achieving the above object, the technology used in the present invention means are as follows: a kind of power transmission tower, and comprise tower body and be connected to the cross-arm on tower body, this cross-arm is above-mentioned compound cross-arm.
Above-mentioned compound cross-arm, owing to directly adopting the mobile jib of glass-reinforced plastic material, this mobile jib can be pultrusion, compare with traditional compound cross-arm, mobile jib external surface is without injection full skirt, and end can directly be fixed by bolt and connector, and then is connected in other structures.The present invention has simplified the structure of compound cross-arm greatly, makes it easily manufactured, has reduced cost.Because the top of the cross section of mobile jib is set to projection, this projection can be arc or wedge angle, can effectively prevent that sleet is residual and be attached to this compound cross-arm upper surface, the performance of compound cross-arm anti-ice cover snow is improved, and then meet correlated performance requirement.Because above-mentioned mobile jib is axially provided with corner angle, these corner angle can, for location, prevent that this mobile jib is subject to the torsion making progress in week and is upwards producing displacement week; These corner angle can also be the wedge angle to lower convexity in mobile jib bottom, and this wedge angle reduces the contact area of the attachments such as this mobile jib bottom and water droplet, is conducive to water droplet or other attachment landings.Above-mentioned compound cross-arm surface is provided with ageing-resistant coating, as fluorine carbon paint, can effectively prevent that this compound cross-arm is subject to shining upon generation for a long time aging, so that mechanical strength cannot reach standard and produce damage.
Above-mentioned power transmission tower, owing to adopting compound cross-arm of the present invention, when having reduced cost, meets the properties requirements such as anti-ice cover, snow of power transmission tower.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic perspective view of the compound cross-arm 100 of the embodiment of the present invention one;
Fig. 2 is the part-structure schematic perspective view of the compound cross-arm 200 of the embodiment of the present invention two;
Fig. 3 is the part schematic perspective view of the compound cross-arm 300 of the embodiment of the present invention three;
Fig. 4 is the part-structure schematic perspective view of the embodiment of the present invention four power transmission towers 4000.
Wherein,
4000---power transmission tower;
4001---tower body;
100,200,300,400---compound cross-arm;
110,210,310,410---mobile jib;
111,211,311,411---projection;
212,312---corner angle;
412---the first corner angle;
413---the second corner angle;
120,220,420---connector;
421---bolt;
222,422---location structure.
The specific embodiment
As requested, will disclose the specific embodiment of the present invention here.Yet, should be understood that, disclosed embodiment is only exemplary of the present invention here, it can be presented as various forms.Therefore, here the detail disclosing is not considered to restrictive, and be only as the basis of claim and as for instructing those skilled in the art differently to apply representational basis of the present invention in any appropriate mode of reality, comprise employing disclosed various features in conjunction with the feature that may clearly not disclose here here.
Embodiment mono-:
As shown in Figure 1, the compound cross-arm 100 of the embodiment of the present invention one, comprises the mobile jib 110 of glass-reinforced plastic material pultrusion, and the end of mobile jib 110 is provided with connector 120, and mobile jib 110 can be connected with miscellaneous part by connector 120.The top of the cross section of mobile jib 110 is set to semicircular arc convex 111.Mobile jib 110 surfaces scribble fluorine carbon lacquer coat (not shown).
The compound cross-arm 100 of the present embodiment, owing to directly adopting Fiberglass-reinforced Plastics Pultrusion Technology And Its Products to manufacture mobile jib 110, compare with traditional compound cross-arm, mobile jib 110 external surfaces are without injection full skirt, and mobile jib 110 is directly connected with miscellaneous part by connector 120, the structure of having simplified compound cross-arm 100, manufacturing process is simple, has reduced product cost.Mobile jib 110 upper surfaces are set to semi-cylindrical arc convex 111, effectively prevent that sleet etc. is residual and be attached to compound cross-arm 100 surfaces, have improved the performance of the anti-ice cover snow of compound cross-arm 100.Mobile jib 110 surfaces scribble fluorine carbon lacquer coat, can effectively prevent that compound cross-arm 100 from being shined upon and occur agingly, so that destroys the mechanical strength of compound cross-arm 100.
Embodiment bis-:
As shown in Figure 2, the compound cross-arm 200 of the embodiment of the present invention two, comprises the mobile jib 210 of glass-reinforced plastic material pultrusion, and the end of mobile jib 210 is provided with connector 220, and mobile jib 210 can be connected with miscellaneous part by connector 220.The top of mobile jib 210 is set to semi-cylindrical arc convex 211.Mobile jib 210 is axially provided with corner angle 212, and corner angle 212 are for to be arranged on mobile jib 210 bottoms to the wedge angle of lower convexity.On connector 220, be provided with the location structure 222 coordinating with corner angle 212, location structure 222 can effectively prevent from rotating displacement on mobile jib 210 axially.Mobile jib 210 surfaces scribble fluorine carbon lacquer coat (not shown).
The compound cross-arm 200 of the present embodiment, when thering is the advantage of the compound cross-arm 100 of embodiment mono-, because mobile jib 210 is provided with the corner angle 212 to lower convexity, corner angle 212 reduce the attachment contacts area such as mobile jib 210 bottoms and water droplet, be conducive to water droplet or other attachment landings, further improved anti-ice cover, the snow performance of compound cross-arm 200.Corner angle 212 coordinate with location structure 222, can effectively prevent the displacement rotating on mobile jib 210 axially.
Embodiment tri-:
As shown in Figure 3, the compound cross-arm 300 of the embodiment of the present invention three, the mobile jib 310 that comprises glass-reinforced plastic material pultrusion, the top of the cross section of mobile jib 310 is set to the projection 311 of pointed shape, and the bottom of mobile jib 310 is provided with cross section to the corner angle 312 of the angular shape of lower convexity.There is the arc that projection 311 top is outwardly convex to the bottom of corner angle 312 both sides of mobile jib 310.Mobile jib 310 surfaces scribble fluorine carbon lacquer coat (not shown).
The compound cross-arm 300 of the present embodiment, owing to directly adopting Fiberglass-reinforced Plastics Pultrusion Technology And Its Products to manufacture mobile jib 310, compares with traditional compound cross-arm, mobile jib 310 external surfaces are without injection full skirt, the structure of having simplified compound cross-arm 300, manufacturing process is simple, has reduced product cost.Mobile jib 310 tops are provided with the projection 311 of angular shape, effectively prevent that sleet etc. is residual and be attached to compound cross-arm 300 surfaces, have improved the performance of the anti-ice cover snow of compound cross-arm 300.Mobile jib 310 bottoms are provided with to the corner angle 312 of the angular shape of lower convexity, corner angle 312 reduce the attachment contacts area such as mobile jib 310 bottoms and water droplet, be conducive to water droplet or other attachment landings, further improved the performance of the anti-ice cover snow of compound cross-arm 300.Mobile jib 310 surfaces scribble fluorine carbon lacquer coat, can effectively prevent that compound cross-arm 300 from being shined upon and occur agingly, so that destroys the mechanical strength of compound cross-arm 300.
Embodiment tetra-:
As shown in Figure 4, the power transmission tower 4000 of the embodiment of the present invention four, comprises tower body 4001, and the both sides at tower body 4001 tops are connected with two compound cross-arms 400, and compound cross-arm 400 is fixed on tower body 4001 by connector 420.Compound cross-arm 400 comprises the mobile jib 410 of glass-reinforced plastic material pultrusion, and mobile jib 410 passes through on the fixing connector 420 of bolt 421.The cross section of mobile jib 410 is the rhombus that has a pair of linea angulata level, and the drift angle of rhombus forms projection 411, and the base angle of rhombus forms the first corner angle 412, and the dihedral of rhombus both sides becomes the second corner angle 413.On connector 420, be provided with the location structure 422 coordinating with the second corner angle 413, location structure 422 can effectively prevent from rotating displacement on mobile jib 410 axially.Mobile jib 410 surfaces scribble fluorine carbon lacquer coat (not shown).
The power transmission tower 4000 of the present embodiment, owing to adopting compound cross-arm 400, compound cross-arm 400 is that the compound cross-arm 200 by the embodiment of the present invention two comes by Structural Transformation, there is the technique effect that the compound cross-arm 200 of the embodiment of the present invention two is equal to, compare with traditional power transmission tower, when having reduced cost, improved the properties requirement such as anti-ice cover, snow of power transmission tower 4000.
Technology contents of the present invention and technical characterstic have disclosed as above; yet be appreciated that; under creative ideas of the present invention; those skilled in the art can make various changes and improve said structure and material; comprise here and to disclose separately or the combination of claimed technical characterictic, comprise significantly other combination of these features.These distortion and/or combination all fall in technical field involved in the present invention, and fall into the protection domain of the claims in the present invention.
Claims (10)
1. a compound cross-arm, comprises and it is characterized in that the mobile jib of glass-reinforced plastic material: the top of the cross section of described mobile jib is set to projection, described projection is used for preventing that ice and snow is attached to described mobile jib upper surface.
2. compound cross-arm as claimed in claim 1, is characterized in that: described mobile jib is glass-reinforced plastic material pultrusion.
3. compound cross-arm as claimed in claim 1, is characterized in that: the projection on the top of the cross section of described mobile jib is arc.
4. compound cross-arm as claimed in claim 1, is characterized in that: the projection on the top of the cross section of described mobile jib is wedge angle.
5. compound cross-arm as claimed in claim 1, is characterized in that: described mobile jib is axially provided with corner angle.
6. compound cross-arm as claimed in claim 1, is characterized in that: the bottom of described mobile jib is provided with the wedge angle to lower convexity.
7. compound cross-arm as claimed in claim 1, is characterized in that: described compound cross-arm also comprises the connector that is connected to described mobile jib end.
8. compound cross-arm as claimed in claim 1, is characterized in that: described compound cross-arm surface is provided with ageing-resistant coating.
9. compound cross-arm as claimed in claim 8, is characterized in that: described ageing-resistant coating is fluorine carbon lacquer coat.
10. a power transmission tower, comprises tower body and is connected to the cross-arm on tower body, it is characterized in that: described cross-arm is the compound cross-arm described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226716.3A CN103993773A (en) | 2014-05-26 | 2014-05-26 | Composite cross arm and power transmission tower with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226716.3A CN103993773A (en) | 2014-05-26 | 2014-05-26 | Composite cross arm and power transmission tower with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103993773A true CN103993773A (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410226716.3A Pending CN103993773A (en) | 2014-05-26 | 2014-05-26 | Composite cross arm and power transmission tower with same |
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|---|---|---|---|---|
| DE4435489A1 (en) * | 1994-10-04 | 1996-04-11 | Abb Patent Gmbh | Exchange of main diagonal strut of power-line pylon using auxiliary girder |
| CN201117371Y (en) * | 2007-08-20 | 2008-09-17 | 祁锦明 | Pultrusion forming variable cross-section glass fibre reinforced plastic insulating cross-arm |
| CN201560607U (en) * | 2009-11-23 | 2010-08-25 | 常熟风范电力设备股份有限公司 | Novel insulated crossarm |
| CN202039639U (en) * | 2011-04-29 | 2011-11-16 | 国网电力科学研究院武汉南瑞有限责任公司 | Dirt-accumulation resistant and ice-covering proof composite material cross arm with novel structure |
| CN102312606A (en) * | 2011-04-07 | 2012-01-11 | 济南巨能铁塔制造有限公司 | Multi-prism cross arm |
| CN102839845A (en) * | 2012-08-24 | 2012-12-26 | 中国电力科学研究院 | Tower node connection device made from composite material |
| JP5334379B2 (en) * | 2007-04-12 | 2013-11-06 | 関西電力株式会社 | Hollow steel pipe reinforcement method for power transmission tower |
| CN203905596U (en) * | 2014-05-26 | 2014-10-29 | 江苏神马电力股份有限公司 | Composite cross arm and power transmission tower with composite cross arm |
-
2014
- 2014-05-26 CN CN201410226716.3A patent/CN103993773A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4435489A1 (en) * | 1994-10-04 | 1996-04-11 | Abb Patent Gmbh | Exchange of main diagonal strut of power-line pylon using auxiliary girder |
| JP5334379B2 (en) * | 2007-04-12 | 2013-11-06 | 関西電力株式会社 | Hollow steel pipe reinforcement method for power transmission tower |
| CN201117371Y (en) * | 2007-08-20 | 2008-09-17 | 祁锦明 | Pultrusion forming variable cross-section glass fibre reinforced plastic insulating cross-arm |
| CN201560607U (en) * | 2009-11-23 | 2010-08-25 | 常熟风范电力设备股份有限公司 | Novel insulated crossarm |
| CN102312606A (en) * | 2011-04-07 | 2012-01-11 | 济南巨能铁塔制造有限公司 | Multi-prism cross arm |
| CN202039639U (en) * | 2011-04-29 | 2011-11-16 | 国网电力科学研究院武汉南瑞有限责任公司 | Dirt-accumulation resistant and ice-covering proof composite material cross arm with novel structure |
| CN102839845A (en) * | 2012-08-24 | 2012-12-26 | 中国电力科学研究院 | Tower node connection device made from composite material |
| CN203905596U (en) * | 2014-05-26 | 2014-10-29 | 江苏神马电力股份有限公司 | Composite cross arm and power transmission tower with composite cross arm |
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| 全国造价工程师执业资格考试培训教材编审委员会: "《建筑工程技术与计量》", 3 May 2013 * |
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Application publication date: 20140820 |