CN110130713A - A kind of the cross-arm structure and tower bar structure of shaft tower - Google Patents
A kind of the cross-arm structure and tower bar structure of shaft tower Download PDFInfo
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- CN110130713A CN110130713A CN201910486845.9A CN201910486845A CN110130713A CN 110130713 A CN110130713 A CN 110130713A CN 201910486845 A CN201910486845 A CN 201910486845A CN 110130713 A CN110130713 A CN 110130713A
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- 239000000463 material Substances 0.000 claims abstract description 58
- 239000011241 protective layer Substances 0.000 claims abstract description 27
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 26
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 18
- 239000011737 fluorine Substances 0.000 claims abstract description 18
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 89
- 239000004094 surface-active agent Substances 0.000 claims description 23
- 229920001187 thermosetting polymer Polymers 0.000 claims description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 13
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- 239000004416 thermosoftening plastic Substances 0.000 claims description 12
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- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 22
- 238000009434 installation Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000012212 insulator Substances 0.000 abstract description 5
- 238000005253 cladding Methods 0.000 abstract description 3
- -1 aminomethyl phenyl Chemical group 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
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- 229910000831 Steel Inorganic materials 0.000 description 6
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- 238000004064 recycling Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of cross-arm structure of shaft tower and tower bar structures, belong to T & D Technology field.It solves the problems, such as that existing insulator crossarm easily snaps off.The cross-arm structure and tower bar structure of this shaft tower, it include foamed material, the protective layer of main body in a tubular form and cladding outside the main body, the protective layer is fluorine-containing protective layer, integrally formed with grid-shaped clathrum in the main body, the main body and clathrum are all made of thermoplastic material and are made, and above-mentioned foamed material is filled in the grid gap of the clathrum.This cross-arm structure not only ensure that integral strength with higher, while also more lightweight, reduce the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce the cost of production, transport and installation.
Description
Technical field
The invention belongs to T & D Technology fields, are related to the cross-arm structure and tower bar structure of a kind of shaft tower.
Background technique
Currently, the erection installation of power transmission cable is generally carried out using overhead transmission line mounting rack in power grid erection,
Existing overhead transmission line mounting rack mainly includes shaft tower and the cross-arm that is arranged on shaft tower.Cross-arm is group important in shaft tower
At part, its effect is to support conducting wire, lightning conducter, and to be allowed to keep certain by regulation for installing insulator and fitting
Safe distance.
The type of power transmission and transformation cross-arm mainly has steel cross-arm, wooden cross-arm and composite insulation cross-arm at present.For traditional steel
Matter cross-arm, although its high mechanical strength, itself heavier-weight, transport, installation cost are relatively high, moreover, without exhausted
Edge performance, steel cross-arm are easy to be affected by the external environment, and weatherability is bad, especially apply the serious area of corrosive gas,
When coastal area and awful weather area, intensity is greatly reduced after being corroded, and there are security risk, service life also accordingly contracts
It is short.Although and in wooden cross-arm weight gentlier compared with steel cross-arm, its overall mechanical properties is poor, and weatherability is not yet
It is good, it is easy moisture absorption mildew, insulation performance and mechanical strength are gradually lost, and reduction causes its potential security risk also more, use
Service life is shorter.
In the conventional cognitive of this field, since the intensity of thermoplastic material itself is relatively poor, and it is being used for a long time
In the process, quickly, weatherability is poor for ultraviolet degradation, is extremely difficult to the long-term requirement of cross-arm intensity and waterproof insulation performance, therefore,
Existing composite insulation cross-arm is using glass-fiber reinforced thermo-setting resin pultrusion or Wrapping formed.
As Chinese patent application (application number: 201810780627.1) disclose it is a kind of can effectively prolong the service life it is exhausted
Edge cross-arm, it includes the structure sheaf of the glass fibre reinforced composite material of internal layer, and the section of structure sheaf is rectangle tube section, the structure
Layer is internally provided with filled layer, and the outside of the structure sheaf is provided with protective layer；Wherein the color of structure sheaf is dead color, protective layer
Color be light tone, the aging speed of structure sheaf is slower than the aging speed of protective layer.The master of existing such as above-mentioned insulator crossarm
Body is the structure sheaf of rectangular tubular, which mainly passes through glass fibre and thermosetting resin pultrusion, internal filling
Layer is that foamed material is mainly used for waterproof, insulation, and external protective layer is mainly used for anti-corrosion and anti-aging, that is to say, that entire exhausted
The intensity of edge cross-arm be supported by structure sheaf, and due to the length of cross-arm be it is longer, stress is larger, therefore uses
It tends to bending deformation occur in journey or even fracture, simultaneously for these discarded cross-arms after fractureing, can not recycle again sharp
With, can not natural degradation, exist pollution environment risk.
And due to the restriction of glass fibre self character, it is difficult to form complicated structure in the inner circumferential of structure sheaf, because
This, in order to increase the intensity of existing insulator crossarm, conventional way has following several: 1, being made into the structure sheaf of entire cross-arm
Solid column structure or the wall thickness of total layer is done it is thicker, but result in this way the weight of entire cross-arm compared with
Weight, is significantly increased the load-bearing of shaft tower, the cost for making, transporting and installing is all higher.2, new high-strength material is researched and developed, it will be whole
A cross-arm structure sheaf is all made of high-strength material, increases the cost of cost again in this way.3, production molding tubular structure
During layer, the setting of the inside of tube wall reinforcers, complex manufacturing technology, and the steel bar girder such as steel bar girder cost at
This is also higher, and whole weight is also heavier, also has an adverse effect to the whole lightning protection of shaft tower and insulation performance.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, the cross-arm structure and tower of a kind of shaft tower are proposed
Rod structure, the technical problems to be solved by the present invention are: how to solve the problems, such as that existing insulator crossarm easily snaps off.
First technical solution of the purpose of the present invention can be achieved are as follows: a kind of cross-arm structure of shaft tower, including foamed material, be in
The protective layer of the main body of tubulose and cladding outside the main body, which is characterized in that the protective layer is fluorine-containing protective layer, in the main body
Integrally formed with grid-shaped clathrum, the main body and clathrum are all made of thermoplastic material and are made, the clathrum
Above-mentioned foamed material is filled in grid gap.
This cross-arm structure, which overcomes this field, cannot be used for technology prejudice in cross-arm structure to thermoplastic material, by anti-
Main body is made of thermoplastic material, coats fluorine-containing protective layer outside the main body by conventional design, has antiultraviolet and hydrophobic function
Can, weatherability and insulating properties are improved, and integrally formed with grid-shaped clathrum in main body, clathrum improves master
The whole supporting force of body.Meanwhile foamed material is filled in the grid gap of clathrum, is equivalent to and is formd in foamed material
One support framework structure, while each grid gap is equivalent to the inner circumferential in main body again and forms multiple closed reinforcement chambers,
To from the radial and axial whole bearing capacity for increasing entire cross-arm structure, when use, is not easily broken, and uses
Clathrum made of thermoplastic material, whole weight is also lighter, i.e., this cross-arm structure has given full play to thermoplastic material weight
Gently, good electric property, the advantage that toughness is big, at low cost not only ensure that enough bearing capacities, be not easily broken, Er Qiegeng
The lightweight added reduces the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce system
Make, the cost of transport and installation.In addition, the main body and clathrum of this cross-arm are all made of thermoplastic material and are made, after discarded
Also it is able to carry out recycling and reusing, improves the utilization rate of resource.
In the cross-arm structure of above-mentioned shaft tower, along the radial section of main body, the clathrum includes several lateral ribs
With several lengthways of rod, several transverse direction ribs and the interlaced formation fenestral fabric of several lengthways of rod.Lateral rib and vertical
A radial direction can be played to main body along the both ends for axially extending to ontology of main body, lateral rib and lengthways of rod to rib
Support, improve the radial support power of main body, meanwhile, foamed material is filled in the grid that lateral rib and lengthways of rod are formed
In gap, it is equivalent to and forms a support framework structure in foamed material, while each grid gap is equivalent to again in main body
Inner circumferential form multiple closed reinforcement chambers, thus from the radial and axial whole carrying energy for increasing entire cross-arm
Power, when use, are not easily broken, and using clathrum made of thermoplastic material, whole weight is also lighter, i.e. this cross-arm knot
Structure not only ensure that enough bearing capacities, be not easily broken, and more lightweight, reduces and wants to the load-bearing of shaft tower
It asks, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce the cost of production, transport and installation.
In the cross-arm structure of above-mentioned shaft tower, the clathrum includes tubular cylinder layer and several spokes, described
It connects to form fenestral fabric by several spokes between cylinder layer and main body.Axially extend to ontology two of the spoke along main body
Endface, cylinder layer and spoke improve the radial support power of main body, and foamed material is filled in cylinder layer, main body and spoke and is formed
Grid gap in and the inner cavity of cylinder layer in, be equivalent to and form a support framework structure in foamed material, simultaneously
Each grid gap is equivalent to the inner circumferential in main body again and forms multiple closed reinforcement chambers, thus from radial and axial whole
Body increases the bearing capacity of entire cross-arm, and when use is not easily broken, and using clathrum made of thermoplastic material, whole
Weight it is also lighter, i.e., this cross-arm structure not only ensure that enough bearing capacities, be not easily broken, and more light weight
Change, reduce the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce production, transport and
The cost of installation.
In the cross-arm structure of above-mentioned shaft tower, the clathrum includes several cylinder layers being successively arranged from inside to outside,
Shape is connected by several circumferentially distributed spokes between two adjacent cylinder layers and between outer ring cylinder layer and main body
At fenestral fabric.The cylinder layer and spoke structure of multilayer can form an effective support to main body, thus from radial direction
And the axial whole bearing capacity for increasing entire cross-arm, when use, are not easily broken, and are made of thermoplastic material
Clathrum, whole weight is also lighter, i.e., this cross-arm structure not only ensure that enough bearing capacities, be not easily broken, and
Also more lightweight reduces the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduces
The cost of production, transport and installation.
In the cross-arm structure of above-mentioned shaft tower, the spoke of adjacent two layers mutually staggers setting.Two layers adjacent of spoke phase
Mutually dislocation improves intensity so as to preferably provide a support to every layer of weak part, so that entire cross-arm knot
The intensity at each position of structure has all obtained uniform raising, and there is no stress concentration, the higher part of local strength is weaker not
Uniform situation, thus more not easy to break.
In the cross-arm structure of above-mentioned shaft tower, the clathrum includes the honeycomb knot formed by several strengthening rib strips
Structure.Honeycomb structure is the optimum topology structure for covering two-dimensional surface, and this structure adaptation highest, material requested be most simple, can
Use space is maximum, there is outstanding geometric mechanics performance, increases cross-arm entirety so as to play from radial direction and axial direction
The effect of intensity, while it is also possible that the total quality of entire cross-arm structure is lighter.
In the cross-arm structure of above-mentioned shaft tower, the foamed material is the hard foam of high rate of closed hole.Using height
The hard foam of rate of closed hole is filled, and intensity is high, is not susceptible to deform, while rainwater will not be seeped from foamed material
Enter, so that waterproof, lightning protection, the insulation performance of entire cross-arm are more preferable.
In the cross-arm structure of above-mentioned shaft tower, the protective layer is coated on main body outer surface and fluorochemical surface is living
The layer of thermosetting material of property agent and coated in layer of thermosetting material outside and fluorine-containing surfactant dope layer.Layer of thermosetting material
Mainly as the function and protecting layer of main body, for preventing ultraviolet degradation, improve the weatherability of main body, dope layer mainly as
Equal fluorine-containing surfactant in erosion resistant coating and waterproof layer, layer of thermosetting material and dope layer, thermal stability with higher can
It is stabilized under high temperature environment, and there is preferable chemical stability, it can be in the features application body such as acid, alkali, oxide isolation
Stabilization effectively plays a role in system, is not susceptible to react or decompose, while also having preferable hydrophobic and oleophobic performance, so that
It can be slid immediately behind the surface of rainwater touching cross-arm, be not easy the superficial residence in cross-arm, the surface hydrophobic of similar lotus leaf, from
And waterproof, lightning protection and the insulation performance of cross-arm can be further increased.Preferably, the thermosetting material of fluorine-containing surfactant
Layer includes following components: aminomethyl phenyl polysilicone 89%~94.5%, silane coupling agent 0.5%~1%, fluorine surface-active
Agent 5%~10%；Wherein in aminomethyl phenyl polysilicone, the toluene solvant with 50% solid content.Fluorine in dope layer
The content of surfactant is 5.0wt%-10wt%.
In the cross-arm structure of above-mentioned shaft tower, the protective layer includes the thermoplastic fluoroelastomer modeling for being coated on main body outer surface
The bed of material.Protective layer can with thermoplastic fluoroelastomer injection molding, can also using short fiber reinforced thermoplastic fluoroelastomer plastic injection at
Type can also use the thermoplastic fluoroelastomer plastics pultrusion or Wrapping formed of continuous fiber reinforcement.Fluoroplastics good weatherability, can be fine
Play the role of protect main body.Staple fiber or continuous fiber reinforcement can be improved the mechanical strength of cross-arm entirety.Preferably,
This thermoplastic fluoroelastomer plastic layer is made of PVDF.
Second technical solution of the purpose of the present invention can be achieved are as follows: a kind of tower bar structure of shaft tower, including foamed material, be in
The protective layer of the main body and cladding of tubulose outside the main body, which is characterized in that integrally formed with grid-shaped net in the main body
Compartment, the main body and clathrum are all made of thermoplastic material and are made, and above-mentioned hair is filled in the grid gap of the clathrum
Foam material.
This tower bar structure overcomes that this field is low to thermoplastic material intensity, weatherability is poor, cannot using in tower bar
Technology prejudice, is designed by anti-convention, and main body is made of thermoplastic material, coats the protection of antiultraviolet outside the main body
Layer improves weatherability, and integrally formed with grid-shaped clathrum in main body, and clathrum improves the radial branch of main body
Load.Meanwhile foamed material is filled in the grid gap of clathrum, is equivalent to and is formd a support rib in foamed material
Frame structure, while each grid gap is equivalent to the inner circumferential in main body again and forms multiple closed reinforcement chambers, thus from radial direction
And the axial whole bearing capacity for increasing entire tower bar, when use, are not easily broken, and are made of thermoplastic material
Clathrum, whole weight is also lighter, i.e. this tower bar has given full play to that thermoplastic material is light-weight, good electric property, toughness
Greatly, advantage at low cost, not only ensure that enough bearing capacities, and more lightweight, can also guarantee shaft tower compared with
Lightning protection well, insulation performance, reduce the cost of production, transport and installation.In addition, the main body and clathrum of this tower bar are all made of
Thermoplastic material is made, and using recycling and reusing is also able to carry out after discarding, improves the utilization rate of resource.
Compared with prior art, the cross-arm structure and tower bar structure of this shaft tower have the advantage that
1, structure sheaf and clathrum are all made of thermoplastic material and are made, thus can by mold integrated injection molding, at
Structure is firm between the two after type, stablizes, and clathrum can play the role of support structure layers, increase intensity, and filled cavity can
Play the role of waterproof, insulation for filling-foam material, and the design of the filled cavity is equivalent to again and sets in structure sheaf inner circumferential
Several structures enhancing chamber is set, thus further from the radial and axial whole intensity for increasing structure sheaf, to increase
The intensity of entire cross-arm structure is added, i.e. this cross-arm structure not only ensure that integral strength with higher, while also more
Lightweight reduces the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduces production, fortune
Defeated and installation cost.
2, the structure sheaf of this cross-arm and clathrum are all made of thermoplastic material and are made, and are also able to carry out recycling using after discarded
It recycles, improves the utilization rate of resource.
3, it is coated in the layer of thermosetting material and dope layer outside structure sheaf straight containing fluorinated surfactant or protective layer
It connects using thermoplastic fluoroelastomer plastics, thermal stability with higher and very high ultraviolet light shaded coefficient, it can be in hot environment
Under be stabilized, and have preferable chemical stability, can stablize in the features application system such as acid, alkali, oxide isolation has
Effect plays a role, and is not susceptible to react or decompose, while also having preferable hydrophobic and oleophobic performance, so as to further
Improve waterproof, lightning protection and the insulation performance of cross-arm.
Detailed description of the invention
Fig. 1 is the perspective view of the cross-arm structure of this shaft tower in embodiment one.
Fig. 2 is the cross-sectional view of the cross-arm structure of this shaft tower in embodiment one.
Fig. 3 is the perspective view of the cross-arm structure of this shaft tower in embodiment two.
Fig. 4 is the cross-sectional view of the cross-arm structure of this shaft tower in embodiment two.
Fig. 5 is the perspective view of the cross-arm structure of this shaft tower in embodiment three.
Fig. 6 is the cross-sectional view of the cross-arm structure of this shaft tower in embodiment three.
Fig. 7 is the perspective view of the cross-arm structure of this shaft tower in example IV.
Fig. 8 is the cross-sectional view of the cross-arm structure of this shaft tower in example IV.
Fig. 9 is the perspective view of the tower bar structure of this shaft tower in embodiment six.
In figure, 1, main body；2, layer of thermosetting material；3, dope layer；4, clathrum；4a, lateral rib；4b, lengthways of rod；
4c, cylinder layer；4d, spoke；4e, strengthening rib strip；5, foamed material；6, cross-arm；7, tower bar.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As illustrated in fig. 1 and 2, the cross-arm structure of this shaft tower, main body 1 including foamed material 5, in a tubular form and is coated on main body
Protective layer outside 1.Thermoplastic material is all made of integrally formed with grid-shaped clathrum 4, main body 1 and clathrum 4 in main body 1
The utilization rate of resource is improved using recycling and reusing is also able to carry out after discarding by injection molding.The grid of clathrum 4
Foamed material 5 is filled in gap.In the present embodiment, main body 1 is in square tube type.
Specifically, clathrum 4 includes several transverse direction rib 4a and several lengthways of rod 4b along the radial section of main body 1,
The length direction of lateral rib 4a and lengthways of rod 4b is with the axial consistent and both ends of main body 1 along the axially extending of main body 1
To the both ends of ontology, the two sides of lateral rib 4a and lengthways of rod 4b, which are connect with the inner wall of main body 1, to play one to main body 1
A radial support improves the radial support power of main body 1.Several transverse direction rib 4a and several interlaced shapes of lengthways of rod 4b
At fenestral fabric, foamed material 5 is filled in the grid gap that lateral rib 4a and lengthways of rod 4b is formed, and is equivalent to and is being sent out
Form a support framework structure in foam material 5, at the same each grid gap be equivalent to again the inner circumferential in main body 1 form it is multiple
Closed reinforcement chamber, thus from the radial and axial whole bearing capacity for increasing entire cross-arm, when use, is not easy to break
It is disconnected, and using clathrum 4 made of thermoplastic material, whole weight is also lighter, i.e. this cross-arm structure not only ensure that foot
Enough bearing capacities, are not easily broken, and more lightweight, reduce the load-bearing requirements to shaft tower, can also guarantee bar
The preferable lightning protection of tower, insulation performance, reduce the cost of production, transport and installation.
Protective layer includes being coated on the layer of thermosetting material 2 of 1 outer surface of main body and fluorine-containing surfactant and being coated in
Layer of thermosetting material 2 is outer and the dope layer 3 of fluorine-containing surfactant.Function and protecting of the layer of thermosetting material 2 mainly as main body 1
Layer, by pultrusion or is wrapped in 1 outer peripheral surface of main body, mainly includes following components: aminomethyl phenyl polysilicone 89%, silane
Couplant~1%, fluorinated surfactant 10%；Wherein in aminomethyl phenyl polysilicone, the first with 50% solid content
Benzene solvent.Dope layer 3 is mainly as erosion resistant coating and waterproof layer, on the outer peripheral surface coated in layer of thermosetting material 2.Thermosetting material
Equal fluorine-containing surfactant in layer 2 and dope layer 3, thermal stability with higher can be stabilized under high temperature environment, with
And there is preferable chemical stability, it can stablize in the features application system such as acid, alkali, oxide isolation and effectively play a role,
It is not susceptible to react or decompose, while also there is preferable hydrophobic and oleophobic performance, so as to further increase the anti-of cross-arm
Water, lightning protection and insulation performance.In the present embodiment, the content of fluorinated surfactant is 8wt% in dope layer 3.
Foamed material 5 is the hard foam 5 of high rate of closed hole.It is filled out using the hard foam of high rate of closed hole
It fills, intensity is high, is not susceptible to deform, while rainwater will not be penetrated into from foamed material, so that the waterproof of entire cross-arm, anti-
Thunder, insulation performance are more preferable.
Embodiment two
The structure of the present embodiment is basically the same as the first embodiment, the difference is that:
As shown in Figures 3 and 4, clathrum 4 includes tubular cylinder layer 4c and several spoke 4d, and spoke 4d is along main body 1
The two end faces of ontology are axially extended to, connect to form fenestral fabric by several spoke 4d between cylinder layer 4c and main body 1,
The radial support power of main body 1 is improved, foamed material 5 is filled in the grid gap that cylinder layer 4c, main body 1 and spoke 4d are formed
And in the inner cavity of cylinder layer 4c, it is equivalent to and forms a support framework structure in foamed material 5, while each grid gap
The inner circumferential being equivalent to again in main body 1 forms multiple closed reinforcement chambers, to increase from radial and axial upper entirety
The bearing capacity of entire cross-arm, when use, are not easily broken, and using clathrum 4 made of thermoplastic material, whole weight
Also lighter, i.e., this cross-arm structure not only ensure that enough bearing capacities, be not easily broken, and more lightweight, reduce
To the load-bearing requirements of shaft tower, it can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce production, transport and installation
Cost.In the present embodiment, cylinder layer 4c is in square tube type, during actual use, cylinder layer 4c also can be made circular tube shaped.
In the present embodiment, layer of thermosetting material 2 mainly includes following components: aminomethyl phenyl polysilicone 94.5%, silicon
Alkane couplant 0.5%, fluorinated surfactant 5%；Wherein in aminomethyl phenyl polysilicone, the first with 50% solid content
Benzene solvent.The content of fluorinated surfactant is 10wt% in dope layer 3.
Embodiment three
The structure of the present embodiment is basically the same as the first embodiment, the difference is that:
As it can be seen in figures 5 and 6, clathrum 4 includes several cylinder layer 4c being successively arranged from inside to outside, two adjacent cylinders
Layer 4c between and outer ring cylinder layer 4c and main body 1 between connected by several circumferentially distributed spoke 4d to be formed it is latticed
Structure.Cylinder layer 4c and spoke the 4d structure of multilayer can form an effective support to main body 1, thus from radial and
The whole bearing capacity for increasing entire cross-arm in axial direction, when use, are not easily broken, and using net made of thermoplastic material
Compartment 4, whole weight is also lighter, i.e., this cross-arm structure not only ensure that enough bearing capacities, be not easily broken, Er Qiegeng
The lightweight added reduces the load-bearing requirements to shaft tower, can also guarantee the preferable lightning protection of shaft tower, insulation performance, reduce system
Make, the cost of transport and installation.In the present embodiment, cylinder layer 4c is in square tube type, during actual use, cylinder layer 4c can also be with
It is made into circular tube shaped.
Furthermore, the spoke 4d of adjacent two layers mutually staggers setting, so as to preferably to every layer of weakness
Position provides a balanced support, improves intensity, so that the intensity at each position of entire cross-arm structure has obtained uniformly
Raising, there is no the weaker situations in the higher part of local strength, thus more not easy to break.
In the present embodiment, layer of thermosetting material 2 mainly includes following components: aminomethyl phenyl polysilicone 92.5%, silicon
Alkane couplant 0.8%, fluorinated surfactant 7.7%；Wherein in aminomethyl phenyl polysilicone, with 50% solid content
Toluene solvant.The content of fluorinated surfactant is 5wt% in dope layer 3.
Example IV
The structure of the present embodiment is basically the same as the first embodiment, the difference is that:
As shown in FIG. 7 and 8, clathrum 4 includes the honeycomb structure formed by several strengthening rib strip 4e, and honeycomb structure is
The optimum topology structure of two-dimensional surface is covered, this structure adaptation highest, material requested are most simple, can be used space maximum, have
Outstanding geometric mechanics performance, so as to play the role of from radial direction and axial direction increase cross-arm integral strength, simultaneously
It is also possible that the total quality of entire cross-arm structure is lighter.
In the present embodiment, layer of thermosetting material 2 mainly includes following components: aminomethyl phenyl polysilicone 90.5%, silicon
Alkane couplant 1%, fluorinated surfactant 8.5%；Wherein in aminomethyl phenyl polysilicone, the first with 50% solid content
Benzene solvent.The content of fluorinated surfactant is 5.0wt% in dope layer 3.
Embodiment five
The structure of the present embodiment is basically the same as the first embodiment, the difference is that:
Protective layer includes the thermoplastic fluoroelastomer plastic layer for being coated on main body outer surface.Protective layer can be infused with thermoplastic fluoroelastomer plastics
It is moulded into type, the thermoplastic fluoroelastomer injection molding of short fiber reinforced can also be used, the heat of continuous fiber reinforcement can also be used
The pultrusion of plasticity fluoroplastics is Wrapping formed.Fluoroplastics fusing point is low, good weatherability, can be good at playing the role of protecting main body.
Staple fiber or continuous fiber reinforcement can be improved the mechanical strength of cross-arm entirety.Preferably, this thermoplastic fluoroelastomer plastic layer uses
PVDF is made.
Embodiment six
As shown in figure 9, shaft tower generally comprises tower bar 7 and the cross-arm 6 that is connected in tower bar 7, the tower bar structure of this shaft tower with
Cross-arm structure in embodiment one to four is similar, main body 1 including foamed material, in a tubular form and the protection being coated on outside main body 1
Layer, main body 1 is interior to be all made of thermoplastic material and is made integrally formed with grid-shaped clathrum 4, main body 1 and clathrum 4, grid
Foamed material 5 is filled in the grid gap of layer 4, protective layer is coated on 1 outer surface of main body and fluorine-containing surfactant
Layer of thermosetting material 2 and outer and fluorine-containing surfactant the dope layer 3 coated in layer of thermosetting material 2.Or protective layer packet
It includes the fiber reinforcement thermosetting material layer 2 for being coated on 1 outer surface of main body and fluorine-containing surfactant and is coated in fiber reinforcement
Layer of thermosetting material 2 is outer and the dope layer 3 of fluorine-containing surfactant.For certain projects of transmitting and converting electricity for having particular/special requirement, this hair
The bright thermoplastic can use PC material.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of cross-arm structure of shaft tower, main body (1) including foamed material (5), in a tubular form and it is coated on main body (1) outside anti-
Sheath, which is characterized in that the protective layer is fluorine-containing protective layer, and the main body (1) is interior integrally formed with grid-shaped grid
Layer (4), the main body (1) and clathrum (4) are all made of thermoplastic material and are made, fill out in the grid gap of the clathrum (4)
Filled with above-mentioned foamed material (5).
2. the cross-arm structure of shaft tower according to claim 1, which is characterized in that the radial section along main body (1), the net
Compartment (4) includes several lateral ribs (4a) and several lengthways of rod (4b), several transverse direction ribs (4a) and several lengthways of rod
(4b) interlaced formation fenestral fabric.
3. the cross-arm structure of shaft tower according to claim 1, which is characterized in that the clathrum (4) includes tubular
Cylinder layer (4c) and several spokes (4d) connect formation by several spokes (4d) between the cylinder layer (4c) and main body (1)
Fenestral fabric.
4. the cross-arm structure of shaft tower according to claim 1, which is characterized in that the clathrum (4) includes several by interior
The cylinder layer (4c) that is successively arranged outward, between two adjacent cylinder layers (4c) and outer ring cylinder layer (4c) and main body (1)
Between form fenestral fabric by several circumferentially distributed spokes (4d) connections.
5. the cross-arm structure of shaft tower according to claim 4, which is characterized in that the spoke (4d) of adjacent two layers mutually staggers
Setting.
6. the cross-arm structure of shaft tower according to claim 1, which is characterized in that the clathrum (4) includes being added by several
The honeycomb structure that strengthening tendons item (4e) is formed.
7. the cross-arm structure of shaft tower described in any one of -6 according to claim 1, which is characterized in that the foamed material
It (5) is the hard foam of high rate of closed hole.
8. the cross-arm structure of shaft tower according to claim 7, which is characterized in that the protective layer is coated on main body
(1) outer surface and the fiber reinforcement thermosetting material layer (2) of fluorine-containing surfactant and be coated in layer of thermosetting material (2) outside
And the dope layer (3) of fluorine-containing surfactant.
9. the cross-arm structure of shaft tower according to claim 7, which is characterized in that the protective layer is coated on main body
(1) the thermoplastic fluoroelastomer plastic layer of outer surface.
10. a kind of tower bar structure of shaft tower, main body (1) including foamed material (5), in a tubular form and it is coated on main body (1) outside
Protective layer, which is characterized in that integrally formed with grid-shaped clathrum (4), the main body (1) and net in the main body (1)
Compartment (4) is all made of thermoplastic material and is made, and is filled with above-mentioned foamed material (5) in the grid gap of the clathrum (4).
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| CN201910486845.9A CN110130713A (en) | 2019-06-05 | 2019-06-05 | A kind of the cross-arm structure and tower bar structure of shaft tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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