CN103015789B - The ply angles of insulation tube in compound cross-arm - Google Patents
The ply angles of insulation tube in compound cross-arm Download PDFInfo
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- CN103015789B CN103015789B CN201210513433.8A CN201210513433A CN103015789B CN 103015789 B CN103015789 B CN 103015789B CN 201210513433 A CN201210513433 A CN 201210513433A CN 103015789 B CN103015789 B CN 103015789B
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Abstract
The present invention relates to the ply angles of insulation tube in a kind of compound cross-arm, the first laying (1) be wound around successively from the inside to the outside by glass fiber yarn, the second laying (2), the 3rd laying (3) form, in three these layings, epoxy resin-impregnated adhesive curing becomes body, it is characterized in that, the winding angle of the glass fiber yarn of the first laying (1) described in formation, the second laying (2) and the 3rd laying (3) is 10 ° ~ 90 °.The invention has the beneficial effects as follows: adopt composite material (FRP) that there is the advantages such as high-strength light, electrical insulation capability are good, corrosion-resistant, easy care; Adopt the winding angle of 90 °, 10 ° and 60 ° to be wound around, laying ratio is 2:4:4, and the interior insulation tube compactness be wound around out is like this good, can meet bend tension and the compressive stress of interior insulation tube simultaneously.
Description
Technical field
The present invention relates to the ply angles of insulation tube in a kind of compound cross-arm, be mainly used in the plug of the composite insulator of power industry power transmission and transformation.
Background technology
Existing shaft tower all adopts all-steel structure, but steel exist that quality is heavy, easy-to-rust or the mechanical deficiencies such as cracking, poor performance at low temperatures, also has that line corridor is wide in particular circumstances, a problem such as construction transport and operation maintenance difficulty; Steel tower being in great demand to steel, not only consumes a large amount of mineral resources, and causes the severe contamination of ecological environment in the production and process of steel.From the viewpoint of electric property, there is fault and the accident such as pollution flashover, windage yaw electric discharge in the power line Louis of full steel structure.Therefore, no matter be from security reliability or economic and social benefits angle, all require can to import innovatively new material and new technology on power transmission tower to solve the problem.Composite material (FRP-Fiber Reinforced Plastics: fibre-reinforced plastics) is as a kind of Novel environment-friendlymaterial material, the advantages such as high-strength light, electrical insulation capability are good, corrosion-resistant owing to having, easy care, more and more by engineering circles is paid attention to, progressively replace timber and metal alloy, be widely used in the field such as Aero-Space, automobile, electric, building, body-building apparatus.Replaced by the cross-arm part composite material of electric power pylon, exploitation compound cross-arm Novel tower, can obtain following effect: performance is safer, cost is more economical, installation and transportation are convenient, resource is more saved, environment is more friendly.Compound cross-arm is according to different force status, and its cross-arm itself bears various stress, have bending force, compressive force and tensile force etc., therefore in meeting with stresses to compound cross-arm, insulation tube force request is higher.
In current compound, the winding process of insulation tube mostly is single angle wound, and winding angle is generally between 30 ° ~ 70 °, and its ply angles be wound around is continuous simple layer.The insulation tube mechanical property of single ply angles is determined according to winding angle, and winding angle its buckling stress less is larger, but its hoop is stressed little, and the interior pressure that product can bear is just little; Winding angle is larger, and the commutation stress that can bear is large, and interior pressure is large, but buckling stress is just little.
Summary of the invention
The object of this invention is to provide the ply angles of insulation tube in a kind of compound cross-arm, various stress can be born more superior, can not meet to meet with stresses to insulation tube in it require higher problem with what solve that existing compound cross-arm exists.
Technical scheme of the present invention is: the ply angles of insulation tube in a kind of compound cross-arm, the first laying be wound around successively from the inside to the outside by glass fiber yarn, the second laying, the 3rd laying form, in three these layings, epoxy resin-impregnated adhesive curing becomes body, it is characterized in that, the winding angle of the glass fiber yarn of the first laying described in formation, the second laying and the 3rd laying is 10 ° ~ 90 °.
The winding angle of the glass fiber yarn of the first described laying is 90 °; The winding angle of the glass fiber yarn of the second laying is 10 °; The winding angle of the glass fiber yarn of the 3rd laying is 60 °.
The laying ratio of the first described laying, the second laying and the 3rd laying is 2:4:4.
The laying ratio of the first described laying, the second laying and the 3rd laying is 1:2:2.
The material of described glass fiber yarn adopts fibre-reinforced plastics.
The invention has the beneficial effects as follows: adopt composite material (FRP) that there is the advantages such as high-strength light, electrical insulation capability are good, corrosion-resistant, easy care; Adopt the winding angle of 90 °, 10 ° and 60 ° to be wound around, laying ratio is 2:4:4, and the interior insulation tube compactness be wound around out is like this good, can meet bend tension and the compressive stress of interior insulation tube simultaneously.
Accompanying drawing explanation
Fig. 1 is axial half sectional view of the present invention;
Fig. 2 is the schematic diagram of the first laying that the present invention adopts 90 ° of winding angles to be wound around;
Fig. 3 is the schematic diagram of the second laying that the present invention adopts 10 ° of winding angles to be wound around;
Fig. 4 is the schematic diagram of the 3rd laying that the present invention adopts 60 ° of winding angles to be wound around.
Detailed description of the invention
See Fig. 1 ~ Fig. 4, the ply angles of insulation tube in a kind of compound cross-arm of the present invention, the first laying 1, second laying 2 be wound around successively from the inside to the outside by glass fiber yarn, the 3rd laying 3 form, and in three these laying 1-3, epoxy resin-impregnated adhesive curing becomes body (i.e. insulation tube in compound cross-arm).The winding angle of the first laying 1, second laying 2 described in formation and the glass fiber yarn of the 3rd laying 3 is 10 ° ~ 90 °.
The winding angle of the glass fiber yarn of the first described laying 1 is 90 °; The winding angle of the glass fiber yarn of the second laying 2 is 10 °; The winding angle of the glass fiber yarn of the 3rd laying 3 is 60 °.
The first described laying 1, second laying 2 and the laying ratio of the 3rd laying 3 are 2:4:4 or 1:2:2.
The material of described glass fiber yarn adopts fibre-reinforced plastics (FRP).
The present invention, when implementing (winding), Wiring apparatus is installed metal bar core 4, directly each laying is wrapped on excellent core 4, after winding, is pulled out by excellent core 4.In order to increase the damping force on glass fiber yarn and excellent core 4 surface, damping slot can be provided with, as thread groove on the surface of excellent core 4.
The force status different according to complex pole tower, compound cross-arm itself will bear bends, stretching and compressive stress to adopt finite element analysis computation to go out to decompose, and the diameter length etc. in conjunction with compound cross-arm calculates the wall thickness of insulation tube in compound cross-arm.Being wound around glass fiber yarn during general insulation pipe winding is 15 strands of yarns, can calculate the winding number of plies of interior insulation tube according to interior insulation tube wall thickness.Less according to winding angle, its buckling stress and tensile stress larger, hoop compressive stress is less; Winding angle is larger, the principle that performance is then contrary, when carrying out low-angle and being wound around, need to hang pin ring at excellent core 4 end winding support, winding angle can be controlled between 10 ° to 90 °, 750kV compound cross-arm adopts the winding angle of 90 °, 10 ° and 60 ° to be wound around according to stressing conditions, laying ratio is 2:4:4, namely two-layer 90 ° of winding layers are first wound around, then continuous winding four layers of 10 ° of winding layer, then continuous winding four layers of 60 ° of winding layer.End suspension pin ring is used to extension winding yarn, because when winding angle is very little, glass fiber yarn is difficult to tangle at two ends, at end pin ring, yarn must be tangled, otherwise will form sliding yarn.
Claims (4)
1. the ply angles of insulation tube in a compound cross-arm, the first laying (1) be wound around successively from the inside to the outside by glass fiber yarn, the second laying (2), the 3rd laying (3) form, in three these layings, epoxy resin-impregnated adhesive curing becomes body, the winding angle of the glass fiber yarn of the first laying (1) described in formation, the second laying (2) and the 3rd laying (3) is 10 ° ~ 90 °, it is characterized in that, the winding angle of the glass fiber yarn of described the first laying (1) is 90 °; The winding angle of the glass fiber yarn of the second laying (2) is 10 °; The winding angle of the glass fiber yarn of the 3rd laying (3) is 60 °.
2. the ply angles of insulation tube in compound cross-arm according to claim 1, it is characterized in that, the laying ratio of described the first laying (1), the second laying (2) and the 3rd laying (3) is 2:4:4.
3. the ply angles of insulation tube in compound cross-arm according to claim 1, it is characterized in that, the laying ratio of described the first laying (1), the second laying (2) and the 3rd laying (3) is 1:2:2.
4. the ply angles of insulation tube in compound cross-arm according to claim 1, is characterized in that, the material of described glass fiber yarn adopts fibre-reinforced plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513433.8A CN103015789B (en) | 2012-12-05 | 2012-12-05 | The ply angles of insulation tube in compound cross-arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513433.8A CN103015789B (en) | 2012-12-05 | 2012-12-05 | The ply angles of insulation tube in compound cross-arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015789A CN103015789A (en) | 2013-04-03 |
| CN103015789B true CN103015789B (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210513433.8A Expired - Fee Related CN103015789B (en) | 2012-12-05 | 2012-12-05 | The ply angles of insulation tube in compound cross-arm |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328920B (en) * | 2015-12-07 | 2018-01-23 | 江苏神马电力股份有限公司 | The dip forming device and method of insulated tension pole |
| CN106437276B (en) * | 2016-08-31 | 2018-12-28 | 国网浙江省电力公司台州供电公司 | A kind of composite material power distribution network cross-arm of band phase color |
| CN108035610A (en) * | 2017-11-20 | 2018-05-15 | 国网河南省电力公司安阳供电公司 | A kind of insulator crossarm of composite glass fiber winding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741042A (en) * | 2010-01-07 | 2010-06-16 | 西安唯实输配电技术有限公司 | Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line |
| CN101942922A (en) * | 2010-08-16 | 2011-01-12 | 中国电力科学研究院 | Process for preparing power transmission composite cross arm with electric mark corrosion tolerance and high hydrophobic property |
| CN102797916A (en) * | 2012-08-16 | 2012-11-28 | 广西盛世鸿霞玻璃钢制品有限公司 | Multilayer structure glass fiber reinforced plastic tube |
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2012
- 2012-12-05 CN CN201210513433.8A patent/CN103015789B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741042A (en) * | 2010-01-07 | 2010-06-16 | 西安唯实输配电技术有限公司 | Preparation method of composite insulation cross arm for electric outdoor anti-ultraviolet overhead line |
| CN101942922A (en) * | 2010-08-16 | 2011-01-12 | 中国电力科学研究院 | Process for preparing power transmission composite cross arm with electric mark corrosion tolerance and high hydrophobic property |
| CN102797916A (en) * | 2012-08-16 | 2012-11-28 | 广西盛世鸿霞玻璃钢制品有限公司 | Multilayer structure glass fiber reinforced plastic tube |
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| CN103015789A (en) | 2013-04-03 |
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