CN104265049A - Glass fiber wound composite material conical electric pole and production method thereof - Google Patents
Glass fiber wound composite material conical electric pole and production method thereof Download PDFInfo
- Publication number
- CN104265049A CN104265049A CN201410558960.XA CN201410558960A CN104265049A CN 104265049 A CN104265049 A CN 104265049A CN 201410558960 A CN201410558960 A CN 201410558960A CN 104265049 A CN104265049 A CN 104265049A
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- Prior art keywords
- alkali
- free glass
- glass fibre
- glass fiber
- composite material
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- 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
- E04H12/02—Structures made of specified materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/06—Rods, e.g. connecting rods, rails, stakes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a glass fiber wound composite material conical electric pole. The glass fiber wound composite material conical electric pole comprises a root portion and a tip portion; the outer diameter of the root portion is larger than that of the tip portion; the wall thickness of the root portion is larger than that of the tip portion; the glass fiber wound composite material conical electric pole also comprises an equal thickness layer and a thickness gradient layer, wherein the equal thickness layer is located on the inner side and the thickness gradient layer is located on the outer side; the equal thickness layer is formed by one of alkali-free glass fiber direct yarns, alkali-free glass fiber axial fabrics and alkali-free glass fiber multi-directional fabrics through winding; the thickness gradient layer is formed by alkali-free glass fiber axial fabrics or alkali-free glass fiber multi-directional fabrics through winding; the pavement length of the alkali-free glass fiber axial fabrics or the alkali-free glass fiber multi-directional fabrics of the thickness gradient layer is retracted from the tip portion to the root portion layer by layer. According to the glass fiber wound composite material conical electric pole, the utilization rate of the glass fiber mechanical properties and the production efficiency of a composite material pole tower can be improved and the manufacturing cost of the composite material power transmission pole tower is reduced. The invention also discloses a production method of the glass fiber wound composite material conical electric pole.
Description
Technical field
The present invention relates to a kind of glass fiber winding composite material taper electric pole and preparation method thereof, belong to electric power network composite material transmission tower manufacturing technology field.
Background technology
The production technology of current glass fiber reinforced plastic tapered electric pole mainly contains hand pasting forming, pultrusion and Wrapping formed.The fabric that hand pasting forming will adopt price higher in a large number, because the tension force that very difficult formation is unified causes thickness to increase, waste of material is serious; And the electric pole outward appearance that hand pasting forming is produced is coarse, quality stability is poor, along with cost of labor constantly increases hard to carry on.Pultrusion is applicable to produce equal-diameter pole, but due to cannot the enough hoop fiber of lay, is difficult to solve the problem of the stressed and buckle in compression of hoop, therefore its article construction less stable.Producing with common composite material conduit winding machine has the tapered electric pole of tapering (as 1 ︰ 75) cannot solve again the identical problem of wall thickness, and in fact it is desirable that root wall thickness is greater than top end wall thickness; Adopt continuous variable angle wound tapered electric pole, even if it is identical substantially to realize wall thickness, but fiber placement angle is undesirable, and the uniformity of fiber placement is also poor, and production efficiency is also very low.
Summary of the invention
The present invention is just for the deficiency that prior art exists, a kind of glass fiber winding composite material taper electric pole is provided, the utilization rate of glass fiber mechanical property and the production efficiency of composite material pole tower can be improved, reduce the manufacturing cost of composite material transmission tower, meet actual operation requirements.
For solving the problem, the technical solution used in the present invention is as follows:
A kind of glass fiber winding composite material taper electric pole, comprising: root and ending, the external diameter of described root is greater than the external diameter of described ending, and the wall thickness of described root is greater than the wall thickness of described ending; Also comprise the equal thickness layer being positioned at inner side and the gradient thickness layer being positioned at outside, described equal thickness layer is that the one in the direct yarn of alkali-free glass fibre, alkali-free glass fibre axial fabrics and alkali-free glass fibre multidirectional fabric is entwined, described gradient thickness layer is that alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric are entwined, and the alkali-free glass fibre axial fabrics of described gradient thickness layer or the laying length of alkali-free glass fibre multidirectional fabric are successively shunk to described root by described ending.
As the improvement of technique scheme, overlapping half when the alkali-free glass fibre axial fabrics of described gradient thickness layer or alkali-free glass fibre multidirectional fabric are wound around.
As the improvement of technique scheme, the length that the alkali-free glass fibre axial fabrics of described gradient thickness layer or alkali-free glass fibre multidirectional fabric are successively shunk to described root by described ending is equal with the width of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric.
As the improvement of technique scheme, the alkali-free glass fibre axial fabrics of described gradient thickness layer or the width of alkali-free glass fibre multidirectional fabric are 200 millimeters.
As the improvement of technique scheme, described equal thickness layer and described gradient thickness layer all with monocomponent polyurethane resin for solidification matrix.
Another object of the present invention is the preparation method providing above-mentioned glass fiber winding composite material taper electric pole, comprises the following steps:
Step one, equipment and mold are selected: buying yarn sheet width is the four-dimensional winding machine of 200 millimeters, the wall thickness of the diameter twice less of the external diameter of electric pole corresponding site of metal die, the process of surface mirror mirror polish;
Step 2, equal thickness layer are wound around: select the one in the direct yarn of alkali-free glass fibre, alkali-free glass fibre axial fabrics and alkali-free glass fibre multidirectional fabric, cross winding from described root;
Step 3, gradient thickness layer are wound around: select alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric to be wound around, and the angle being wound around lay is 80 ° ~ 90 °, overlapping half when alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric are wound around, laying length successively shrinks 200 millimeters or more by described ending to described root;
Step 4, solidification and post processing: solidify in the curing oven of 60 degree Celsius, then cutting, chamfering and surfacing, spraying weathering layer.
As the improvement of technique scheme, metal die described in described step one will deoil before using, and guarantees cleaning; And heat described metal die, be repeatedly coated with three demoulding waxes, use soft cloth wiping, so that wax enters die surface.
As the improvement of technique scheme, in described step 2 and described step 3, with monocomponent polyurethane resin for solidification matrix, and the viscosity of monocomponent polyurethane resin remains on 390 ~ 410 centipoises.
Compared with prior art, implementation result of the present invention is as follows in the present invention:
Glass fiber winding composite material taper electric pole of the present invention, the utilization rate of glass fiber mechanical property and the production efficiency of composite material pole tower can be improved, reduce the manufacturing cost of composite material pole tower, meet actual operation requirements, be conducive to the commercialization accelerating composite material transmission tower.
The preparation method of glass fiber winding composite material taper electric pole of the present invention: the yarn sheet width of employing precision manufactureing is the four-dimension winding unit of 200 millimeters, with the direct yarn of alkali-free glass fibre, alkali-free glass fibre axis or multidirectional fabric and monocomponent polyurethane resin for main material, on selected cone-shaped metal mould, by stressing conditions design laying scheme, intersect and hoop fiber to taper echelon lay from root, ensure that root wall thickness is greater than top end, reach the economic object manufactured.If axial bending modulus is less than 18 GPa can meet instructions for use, the direct yarn of alkali-free glass fibre is adopted to be wound around; Otherwise from root, should successively extend lay alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric to taper gradually; Because whole or the overwhelming majority adopt tension force direct yarn and the wide yarn sheet mode of production preferably, improve utilization rate and the production efficiency of fibrous mechanical property, reduce cost, significant to the commercialization of quickening composite material electric pole.
Accompanying drawing explanation
Fig. 1 is glass fiber winding composite material taper electric pole cross-sectional view of the present invention;
The structural representation of overlapping half when Fig. 2 is alkali-free glass fibre axial fabrics or the winding of alkali-free glass fibre multidirectional fabric of gradient thickness layer of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiments content of the present invention is described.
Specific embodiment one
As depicted in figs. 1 and 2, be the glass fiber winding composite material taper electric pole structural representation described in the present embodiment.Glass fiber winding composite material taper electric pole described in the present embodiment, comprising: root 1 and ending 2, and the external diameter of described root 1 is greater than the external diameter of described ending 2, and the wall thickness of described root 1 is greater than the wall thickness of described ending 2; Also comprise the equal thickness layer 4 being positioned at inner side and the gradient thickness layer 3 being positioned at outside, described equal thickness layer 4 is entwined for the direct yarn of alkali-free glass fibre, described gradient thickness layer 3 is entwined for alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric, and the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or the laying length of alkali-free glass fibre multidirectional fabric are successively shunk to described root 1 by described ending 2.
Preferably, overlapping half when the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or alkali-free glass fibre multidirectional fabric are wound around.Namely the alkali-free glass fibre axial fabrics shown in Fig. 2 or the width D of alkali-free glass fibre multidirectional fabric are 2 times of width d of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric unmasked portion when being wound around.The length that the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or alkali-free glass fibre multidirectional fabric are successively shunk to described root 1 by described ending 2 is equal with the width of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric.The alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or the width of alkali-free glass fibre multidirectional fabric are 200 millimeters.Described equal thickness layer 4 and described gradient thickness layer 3 all with monocomponent polyurethane resin for solidification matrix.
The preparation method of the glass fiber winding composite material taper electric pole described in the present embodiment comprises the following steps:
Step 1, buying yarn sheet width are the four-dimensional winding machine of 200 millimeters, and the enough large servomotor of employing power as much as possible is to ensure the accuracy of executive system.
The wall thickness of the diameter twice less of the external diameter of electric pole corresponding site of step 2, metal die, the process of surface mirror mirror polish.Mould will deoil before using, and guarantees cleaning.Heating mould, is repeatedly coated with demoulding waxes 3 times, uses soft cloth wiping, makes that wax is as much as possible enters die surface.
Step 3, according to Lay up design, from root, cross winding is wound around equal thickness layer, about resin viscosity remains on 400 centipoises, controls fabric strip glue amount to minimum, not frictioning.
Step 4, gradient thickness layer, the axis of lay or multidirectional fabric are based on 90 degree, and overlapping half, so that mechanical lay.Laying length successively shrinks 200 millimeters or more to root, is as the criterion with designing requirement.
Step 5, to solidify in the curing oven of 60 degree Celsius.
Step 6, cutting, chamfering and surfacing, spraying weathering layer, packing as ready.
Specific embodiment one
As depicted in figs. 1 and 2, be the glass fiber winding composite material taper electric pole structural representation described in the present embodiment.Glass fiber winding composite material taper electric pole described in the present embodiment, comprising: root 1 and ending 2, and the external diameter of described root 1 is greater than the external diameter of described ending 2, and the wall thickness of described root 1 is greater than the wall thickness of described ending 2; Also comprise the equal thickness layer 4 being positioned at inner side and the gradient thickness layer 3 being positioned at outside, described equal thickness layer 4 is that the one in alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric is entwined, described gradient thickness layer 3 is entwined for alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric, and the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or the laying length of alkali-free glass fibre multidirectional fabric are successively shunk to described root 1 by described ending 2.
Preferably, overlapping half when the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or alkali-free glass fibre multidirectional fabric are wound around.Namely the alkali-free glass fibre axial fabrics shown in Fig. 2 or the width D of alkali-free glass fibre multidirectional fabric are 2 times of width d of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric unmasked portion when being wound around.The length that the alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or alkali-free glass fibre multidirectional fabric are successively shunk to described root 1 by described ending 2 is equal with the width of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric.The alkali-free glass fibre axial fabrics of described gradient thickness layer 3 or the width of alkali-free glass fibre multidirectional fabric are 200 millimeters.Described equal thickness layer 4 and described gradient thickness layer 3 all with monocomponent polyurethane resin for solidification matrix.
The preparation method of the glass fiber winding composite material taper electric pole described in the present embodiment is with specific embodiment one.
Above content is detailed description made for the present invention in conjunction with specific embodiments, can not assert that the present invention specifically implements to be only limitted to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to the scope of protection of the invention.
Claims (8)
1. a glass fiber winding composite material taper electric pole, is characterized in that, comprising: root (1) and ending (2), and the external diameter of described root (1) is greater than the external diameter of described ending (2), and the wall thickness of described root (1) is greater than the wall thickness of described ending (2); Also comprise the equal thickness layer (4) being positioned at inner side and the gradient thickness layer (3) being positioned at outside, described equal thickness layer (4) is entwined for the one in the direct yarn of alkali-free glass fibre, alkali-free glass fibre axial fabrics and alkali-free glass fibre multidirectional fabric, described gradient thickness layer (3) is entwined for alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric, and the alkali-free glass fibre axial fabrics of described gradient thickness layer (3) or the laying length of alkali-free glass fibre multidirectional fabric are successively shunk to described root (1) by described ending (2).
2. glass fiber winding composite material taper electric pole as claimed in claim 1, is characterized in that, overlapping half when the alkali-free glass fibre axial fabrics of described gradient thickness layer (3) or alkali-free glass fibre multidirectional fabric are wound around.
3. glass fiber winding composite material taper electric pole as claimed in claim 1, it is characterized in that, the length that the alkali-free glass fibre axial fabrics of described gradient thickness layer (3) or alkali-free glass fibre multidirectional fabric are successively shunk to described root (1) by described ending (2) is equal with the width of alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric.
4., as the glass fiber winding composite material taper electric pole as described in arbitrary in claim 1-3, it is characterized in that, the described alkali-free glass fibre axial fabrics of gradient thickness layer (3) or the width of alkali-free glass fibre multidirectional fabric are 200 millimeters.
5., as the glass fiber winding composite material taper electric pole as described in arbitrary in claim 1-3, it is characterized in that, described equal thickness layer (4) and described gradient thickness layer (3) all with monocomponent polyurethane resin for solidification matrix.
6. the preparation method of glass fiber winding composite material taper electric pole as claimed in claim 4, is characterized in that, comprise the following steps:
Step one, equipment and mold are selected: buying yarn sheet width is the four-dimensional winding machine of 200 millimeters, the wall thickness of the diameter twice less of the external diameter of electric pole corresponding site of metal die, the process of surface mirror mirror polish;
Step 2, equal thickness layer are wound around: select the one in the direct yarn of alkali-free glass fibre, alkali-free glass fibre axial fabrics and alkali-free glass fibre multidirectional fabric, cross winding from described root;
Step 3, gradient thickness layer are wound around: select alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric to be wound around, and the angle being wound around lay is 80 ° ~ 90 °, overlapping half when alkali-free glass fibre axial fabrics or alkali-free glass fibre multidirectional fabric are wound around, laying length successively shrinks 200 millimeters or more by described ending to described root;
Step 4, solidification and post processing: solidify in the curing oven of 60 degree Celsius, then cutting, chamfering and surfacing, spraying weathering layer.
7. the preparation method of glass fiber winding composite material taper electric pole as claimed in claim 6, is characterized in that, metal die described in described step one will deoil before using, and guarantees cleaning; And heat described metal die, be repeatedly coated with three demoulding waxes, use soft cloth wiping, so that wax enters die surface.
8. the preparation method of glass fiber winding composite material taper electric pole as claimed in claim 6, it is characterized in that, in described step 2 and described step 3, with monocomponent polyurethane resin for solidification matrix, and the viscosity of monocomponent polyurethane resin remains on 390 ~ 410 centipoises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410558960.XA CN104265049B (en) | 2014-10-21 | 2014-10-21 | The preparation method of glass fiber winding composite material taper electric pole |
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| CN201410558960.XA CN104265049B (en) | 2014-10-21 | 2014-10-21 | The preparation method of glass fiber winding composite material taper electric pole |
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| CN104265049A true CN104265049A (en) | 2015-01-07 |
| CN104265049B CN104265049B (en) | 2016-08-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696836A (en) * | 2016-01-26 | 2016-06-22 | 云浮市欣粤电力器材有限公司 | Super-strength composite material electric pole |
| CN111604974A (en) * | 2020-03-31 | 2020-09-01 | 蒋文君 | Sinking and floating material breaking method for insulating tower production line based on vertical heavy vertical tension method |
| CN113290886A (en) * | 2021-05-24 | 2021-08-24 | 宁波江丰复合材料科技有限公司 | Release film winding method of conical carbon fiber pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7513876A (en) * | 1975-11-27 | 1977-06-01 | Kaal Van Der Linden B V | Axially reinforced posts of synthetic material - which are wound on a tapering core in successive layers |
| JPH0447084A (en) * | 1990-06-15 | 1992-02-17 | Nippon Steel Corp | Small electric pole and composite pole for street lamp |
| CN2534296Y (en) * | 2002-03-15 | 2003-02-05 | 济南大学 | Fiber reinforced plastic electric wire pole |
| CN200961373Y (en) * | 2006-09-04 | 2007-10-17 | 蒋大建 | Composite reinforced hollow electric pole |
| CN102003100A (en) * | 2009-09-02 | 2011-04-06 | 南通市神马电力科技有限公司 | Polyurethane resin insulating electric tower |
| CN102127986A (en) * | 2011-01-25 | 2011-07-20 | 深圳市吉凌复合材料科技股份有限公司 | Composite material transmission tower |
| CN103061565A (en) * | 2013-01-25 | 2013-04-24 | 哈尔滨工业大学 | Tapered tube made of glass fiber and carbon fiber hybrid composite materials and method for manufacturing tapered tube |
-
2014
- 2014-10-21 CN CN201410558960.XA patent/CN104265049B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7513876A (en) * | 1975-11-27 | 1977-06-01 | Kaal Van Der Linden B V | Axially reinforced posts of synthetic material - which are wound on a tapering core in successive layers |
| JPH0447084A (en) * | 1990-06-15 | 1992-02-17 | Nippon Steel Corp | Small electric pole and composite pole for street lamp |
| CN2534296Y (en) * | 2002-03-15 | 2003-02-05 | 济南大学 | Fiber reinforced plastic electric wire pole |
| CN200961373Y (en) * | 2006-09-04 | 2007-10-17 | 蒋大建 | Composite reinforced hollow electric pole |
| CN102003100A (en) * | 2009-09-02 | 2011-04-06 | 南通市神马电力科技有限公司 | Polyurethane resin insulating electric tower |
| CN102127986A (en) * | 2011-01-25 | 2011-07-20 | 深圳市吉凌复合材料科技股份有限公司 | Composite material transmission tower |
| CN103061565A (en) * | 2013-01-25 | 2013-04-24 | 哈尔滨工业大学 | Tapered tube made of glass fiber and carbon fiber hybrid composite materials and method for manufacturing tapered tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696836A (en) * | 2016-01-26 | 2016-06-22 | 云浮市欣粤电力器材有限公司 | Super-strength composite material electric pole |
| CN111604974A (en) * | 2020-03-31 | 2020-09-01 | 蒋文君 | Sinking and floating material breaking method for insulating tower production line based on vertical heavy vertical tension method |
| CN111604974B (en) * | 2020-03-31 | 2021-12-31 | 蒋文君 | Sinking and floating material breaking method for insulating tower production line based on vertical heavy vertical tension method |
| CN113290886A (en) * | 2021-05-24 | 2021-08-24 | 宁波江丰复合材料科技有限公司 | Release film winding method of conical carbon fiber pipe |
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| Publication number | Publication date |
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| CN104265049B (en) | 2016-08-24 |
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