CN204480763U - With transmission pressure and the making apparatus thereof of carbon fiber core - Google Patents

Abstract

The utility model relates to overhead power transmission conducting wire technical field, is specifically related to the transmission pressure with carbon fiber core and making apparatus thereof; Transmission pressure, comprise carbon fiber plug, be in the metal conducting layer of carbon fiber plug outside, described metal conducting layer is be sheathed on to the bulk metal pipe that carbon fiber core clavate becomes to surround completely on carbon fiber plug, and carbon fiber plug outer surface and metal conducting layer inner surface form entirety by extruding; Making apparatus comprises extrusion cladding machine, is in the tension stringing apparatus in extrusion cladding machine front and is positioned at the draw-gear at extrusion cladding machine rear; To expand or in contraction process at aluminum conductor layer, by pining down of carbon fiber plug, metal conducting layer can not produce to two ends and expand or shrink, thus the length of metal conducting layer can not change, the external diameter of maximum metal conducting layer can change, and the change of external diameter can not impel generation sag, and metal conducting layer can not produce the power pulling and promote support tower, ensures the fail safe that transporting line uses.

Description

With transmission pressure and the making apparatus thereof of carbon fiber core

Technical field

The utility model relates to overhead power transmission conducting wire technical field, is specifically related to the transmission pressure with carbon fiber core and making apparatus thereof.

Background technology

Cable normally forms by several or several groups of wires (often organizing at least two) are stranded around center, the similar rope of its shape, simultaneously outer cover height insulating barrier; And transmission pressure is generally that aluminium steel conductor is stranded to be formed, is set up between electric power pylon and carries out electric power transfer.Thus transmission pressure is different from cable.

The electric power transfer of conventional overhead transmission pressure is undertaken by aluminium steel conductor, and because this kind of wire is comparatively large at electric power transfer process temperature influence, can produce sag problem, therefore aluminium steel conductor is replaced by carbon fiber core wire gradually.In order to replace traditional aluminium steel conductor, there is a kind of transmission pressure of novel carbon fiber complex core line, a kind of carbon fiber composite core wire as disclosed in a utility model patent (notification number CN201758012U), the aluminum conductor layer comprising core and be made up of many aluminium conductors be coated on outside core, core is combined by the carbon fiber complex core of 2 or more, the described aluminum conductor layer be made up of many aluminium conductors is divided into aluminium conductor internal layer and aluminium conductor skin, aluminium conductor internal layer is coated on outside core, and aluminium conductor skin is located at outside aluminium conductor internal layer.Described aluminium conductor internal layer is that many aluminium conductors are wrapped in core outside, along core direction with spirality arranged counterclockwise, forms aluminium conductor internal layer; Aluminium conductor outer by many aluminium conductors along core direction with spirality arranged clockwise, wire distortion can be prevented with reverse canoe, closely be wrapped on aluminium conductor internal layer.

The transmission pressure of above-mentioned existing structure has following a few point defect:

1, because aluminum conductor layer adopts the mode be wound around to be coated on outside core, be difficult to make coordinating of close and firm between core with aluminum conductor layer, i.e. aluminum conductor layer inwall and core outer between can produce gap, namely core can arbitrarily pull out from aluminum conductor layer; In using, see Fig. 1,2, power transmission line 1 is set up between two support towers 2 and carries out delivery of electrical energy, owing to expanding with heat and contract with cold, aluminum conductor layer can expand or shrink; And there is low bulk, the feature such as high temperature resistant due to carbon fibre material, in use carbon fiber core keeps original shape substantially, can not produce huge deformation, and its deformation can be ignored substantially; Thus when aluminum conductor layer expands, the length of aluminum conductor layer can elongated and diameter can increase, core is easier to be extracted out from aluminum conductor layer, thus whole transmission pressure can produce obvious sag phenomenon, more serious words, the expansion of aluminum conductor layer can produce the power promoting support tower, impels support tower outward-dipping, reduces the fail safe used; And when aluminum conductor layer shrinks, the length of aluminum conductor layer can shorten and diameter can diminish, then can produce and pull the intilted power of support tower, impel support tower to tilt equally; In the transmission pressure of this spline structure, core is only play the effect of overlapping and being hung in the air to aluminum conductor layer, and can't produce pining down aluminum conductor layer.

2, aluminum conductor layer is that many aluminium conductors are wrapped in core outside, along core direction with spirality arranged counterclockwise, forms aluminum conductor layer; Because aluminum conductor layer is formed by many aluminium conductor spiral windings, thus will inevitably produce gap between adjacent aluminium conductor, in use, have impurity, water enter in gap formed stop, corrosion, the electric conductivity, the electric energy loss that affect wire are large; In order to meet the electric conductivity of wire, be the cross-sectional area increasing aluminum conductor layer, this considerably increases the input cost of wire beyond doubt.

3, because aluminum conductor layer adopts many aluminium conductors to be entwined, and do not produce between aluminum conductor layer and core and pin down, thus in installation process, need to adopt clamping device in addition, the two ends of transmission pressure are clamped, avoids the loose of transmission pressure end, be convenient to install; Such installation adds the complexity of installation and the installation cost of input.

4, owing to adopting aluminium conductor internal layer and aluminium conductor skin to be wound aluminum conductor layer, the aluminum conductor layer thickness that two aluminium conductor is formed is thicker, and cost is high, manufacture difficulty is large, meanwhile, add the weight of whole power transmission line, thus increase the weight of the sag phenomenon that produces in power transmission line use procedure further.

5, because existing aluminum conductor layer is formed by many aluminium conductor spiral windings, thus gap will inevitably be produced between adjacent aluminium conductor; Like this when overhead transmission line is subject to wind, wind can enter power transmission line inside by gap, at power transmission line generates gas inside whirlpool, gas is hung out in power transmission line for a long time, thus can increase shaking amplitude and the slosh frequency of power transmission line; Owing to power transmission line needing adopt wire clamp 3 to prevent the loose of power transmission line, rock in process at power transmission line, power transmission line at wire clamp place is stubborn folding repeatedly, cause fatigue of materials, power transmission line is finally caused to break stock, line-outage contingency, harm is run to the normal safe of transmission system comparatively large, and the useful life of power transmission line and transmission system is shorter.

6, owing to not producing firm connection between core with aluminum conductor layer in power transmission line, because overhead transmission line span is long, weight is large, aluminum conductor layer is caused to produce sag with core, when aluminum conductor layer flexural deformation, its cross section centre of form is along producing displacement of the lines with axes normal direction, i.e. amount of deflection, thus, in the design of transmission system in advance, the length after considering power transmission line sag is just needed; Such as: in the overhead power transmission system of a kilometer, at least need there is the power transmission line of about 10 meters to overcome the problem of sag more, if a regional power grid total transmit power line length used is 1000 kilometers, just the power transmission line of multiplex 10 kilometers is needed, if one meter of power transmission line is worth 100 yuan, then need multiplex 1,000,000 yuan, add the input cost of power transmission electric network.

Utility model content

For above-mentioned technical problem, an object of the present utility model is to provide a kind of can avoiding and produces sag, the fail safe transmission pressure with carbon fiber core high and easy for installation.

Realize the technical solution of the utility model as follows:

With the transmission pressure of carbon fiber core, comprise carbon fiber plug, be in the metal conducting layer of carbon fiber plug outside, described metal conducting layer is be sheathed on to the bulk metal pipe that carbon fiber core clavate becomes to surround completely on carbon fiber plug, and carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding.

Further, in order to carbon fiber plug and metal conducting layer is more effective is combined as a whole, be provided with between described metal conducting layer inner surface and jacket outer surface and stretch into sheath or/and stretch into the lug boss of metal conducting layer from sheath from metal conducting layer.

Further, described carbon fiber plug comprises carbon fiber core and surrounds the sheath of carbon fiber core, and the outer surface of this sheath and above-mentioned metal conducting layer inwall form one by extruding.Thus carbon fiber core, sheath and metal conducting layer form the entirety be connected firmly.

Further, described metal conducting layer is the conductive layer that aluminium or copper product are made.

Have employed technique scheme, forming one by carbon fiber plug outer surface and metal conducting layer inner surface by extruding, so just solving the following problem in prior art problem:

1, carbon fiber plug and metal conducting layer are squeezed into entirety, avoid existing aluminum conductor layer and adopt the mode be wound around to be coated on outside core, aluminum conductor layer inwall and core outer between can produce gap, the problem that can arbitrarily pull out from aluminum conductor layer; To expand or in contraction process at aluminum conductor layer, by pining down of carbon fiber plug, metal conducting layer can not produce to two ends and expand or shrink, thus the length of metal conducting layer can't change, the external diameter of maximum metal conducting layer can change, and the change of external diameter can not impel generation sag, and metal conducting layer can not produce the power pulling and promote support tower, ensures the fail safe that transporting line uses.

2, metal conducting layer is be sheathed on carbon fiber plug the bulk metal pipe that carbon fiber core clavate becomes to surround completely, and be that many aluminium conductors are wrapped in core outside with aluminum conductor layer in prior art, aluminum conductor layer is formed with spirality arranged counterclockwise along core direction, such impurity, water etc. just can not enter in transmission pressure through metal conducting layer, first the fail safe that transmission pressure uses is ensured, next avoids impurity, water etc. enter in transmission pressure the electric conductivity reducing transmission pressure, because metal conducting layer of the present utility model is overall, conducting transmission excellent in efficiency, thus in order to reach same conducting transmission performance requirement, can accomplish that diameter is less than the diameter of existing transmission pressure, greatly reduce the operating cost of cost of manufacture and electrical network.Due to the size of metal conducting layer can do less, the metal conducting layer weight of the transmission pressure use of certain length, that thus reduces metal conducting layer uses material, also can alleviate the bearing capacity of carbon fiber plug simultaneously, relatively extends the useful life of carbon fiber plug.

3, because metal conducting layer in the utility model is be sheathed on to the bulk metal pipe that carbon fiber core clavate becomes to surround completely on carbon fiber plug, and carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding; Such metal conducting layer can become firmly overall with carbon fiber core clavate, carbon fiber core can pin down metal conducting layer, thus in the installation process of transmission pressure, clamp without the need to adopting clamping device end or interlude, with loosening, reduce the installation cost of transmission pressure and complexity is installed.

4, in the utility model, carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding, such carbon fiber plug can produce pretension, with metal conducting layer in the gesture involved, make whole power transmission line in alignment, can not bend, even if what produce due to long span bends, also can substantially ignore; Metal conducting layer in the utility model is bulk metal pipe, it is made to be coated on carbon fiber plug by existing continued extrusion mode, simple for production, because metal conducting layer is bulk metal pipe, the effective area of such transmission of electricity is larger, the thickness of metal conducting layer can be accomplished less relative to prior art, and the consumption of conductive metal material reduces, and also mitigates the weight of power transmission line simultaneously.

5, the metal conducting layer in the utility model is bulk metal pipe, thus whole metal conducting layer outer surface is very close to each other, extraneous wind can not enter in transmission pressure, reduce transmission pressure to the resistance of wind, and due to whole power transmission line in alignment, even if wind is on power transmission line, but its shaking amplitude, frequency are far smaller than the power transmission line of prior art sag condition; In addition, because metal conducting layer is that bulk metal pipe does not just need to adopt wire clamp of the prior art to prevent the loose of transmission pressure, also there will not be simultaneously because of rock cause at wire clamp place transmission line breakage, line-outage contingency problem, promote the normal security of operation degree of transmission system, and relatively extend the useful life of transmission pressure and transmission system.

6, in the utility model, carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding, such carbon fiber plug can produce pretension, with metal conducting layer in the gesture involved, makes whole power transmission line in alignment, can not bend, thus also would not occur sag phenomenon; In the design of power transmission line in advance, just do not need the length after considering transmission pressure sag yet, greatly reduce the input cost to transmission pressure.

Another object of the present utility model is to provide a kind of transmission pressure making apparatus with carbon fiber core, this making apparatus comprises extrusion cladding machine, be in the tension stringing apparatus in extrusion cladding machine front, with the draw-gear being positioned at extrusion cladding machine rear, tension stringing apparatus comprises and carries out unwrapping wire to carbon fiber plug and unwrapping wire parts carbon fiber plug being produced to the reverse power of pullling in unwrapping wire process, draw-gear comprises and to draw carbon fiber plug and to produce the rolling parts of forward tractive effort, described rolling parts drive unwrapping wire parts to be the motion of forward drawing-type by carbon fiber plug.

Have employed technique scheme, carbon fiber plug carries out unwrapping wire by the unwrapping wire parts in tension stringing apparatus, and drawn by the rolling parts in draw-gear through after extrusion cladding machine, unwrapping wire parts and rolling parts are rotating parts, both rotation directions are different, if unwrapping wire parts are for rotating counterclockwise, rolling parts are then for rotating clockwise, and the rotatory force of unwrapping wire parts is less than the rotatory force of rolling parts, such rolling parts pull the rotation of unwrapping wire parts by carbon fiber plug, carbon fiber plug is made to tighten generation tension force, aluminum is formed liquid state by the extruding of extrusion cladding machine to be coated on carbon fiber plug, produce the transmission pressure with pretension, the utility model structure is simple, relative to the making apparatus of existing transmission pressure, eliminate the equipment be wrapped in by many aluminium conductors on carbon fiber plug, and avoids aluminium conductor and be wound around not tight defect.

Further, described extrusion cladding machine comprises extrusion molding dies, squeegee roller, extrusion molding dies comprises the extruding die body with squeegee roller frictional fit, the assembling through hole running through extruding die body both ends of the surface is offered in extruding die body, die sleeve is fixed with in assembling through hole, and be assemblied in die sleeve the core rod with shaping nib, outer surface in the middle part of die sleeve and be provided with extruding containing cavity between extruding die body inner surface, this extruding containing cavity extrudes by extruding die body and squeegee roller the material forming liquid state for retaining, the radial direction of described core rod offers the opening being communicated with shaping nib in extruding containing cavity and core rod.

Further, in order to make carbon fiber plug better keep tensile force and ensure extrusion stretching more smoothly, the shaping nib center of the unwrapping wire end of tension stringing apparatus, the traction end of draw-gear and core rod is on same straight line.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that in prior art, transmission pressure is installed on normal condition in transmission system;

Fig. 2 is the schematic diagram that in prior art, transmission pressure is installed in transmission system the sag condition that expands;

Fig. 3 is the schematic diagram of transmission pressure axial section structure first embodiment in the utility model;

Fig. 4 is the schematic diagram of transmission pressure axial section structure second embodiment in the utility model;

Fig. 5 is the schematic diagram of transmission pressure axial section structure the 3rd embodiment in the utility model;

Fig. 6 is the schematic diagram of transmission pressure axial section structure the 4th embodiment in the utility model;

Fig. 7 is the schematic diagram of transmission pressure radial section structure first embodiment in the utility model;

Fig. 8 is the schematic diagram of transmission pressure radial section structure second embodiment in the utility model;

Fig. 9 is the schematic diagram of transmission pressure radial section structure the 3rd embodiment in the utility model;

Figure 10 is the schematic diagram of transmission pressure radial section structure the 4th embodiment in the utility model;

Figure 11 is the structural representation of transmission pressure making apparatus in the utility model;

Figure 12 is the plan structure schematic diagram of Figure 11;

Figure 13 is the A portion enlarged diagram in Figure 11;

Figure 14 is the B portion enlarged diagram in Figure 11;

Figure 15 is the C portion enlarged diagram in Figure 12;

Figure 16 is the D portion enlarged diagram in Figure 12;

Figure 17 is extrusion molding dies and squeegee roller fit structure schematic diagram in the utility model;

Figure 18 is the structural representation of take-up buffer in transmission pressure making apparatus;

Figure 19 is that in the utility model, transmission pressure makes somebody a mere figurehead using state schematic diagram;

Wherein, in accompanying drawing 1,2,1 is power transmission line, and 2 is support tower, and 3 is wire clamp;

In accompanying drawing 3-19, 10 is carbon fiber plug, 11 is metal conducting layer, 12 is carbon fiber core, 13 is sheath, 14 is lug boss, 15 is cannelure, 16 is tension stringing apparatus, 17 is draw-gear, 18 is extrusion cladding machine, 19 is extrusion cladding machine mould, 20 is the nib of extrusion cladding machine mould, 21 is aluminium bar actinobacillus device, 22 is guider, 23 is coalignment, 24 is aluminium bar purging system, 25 be wind-up roll 26 is aluminium conductive layer, 27 is on-line cleaning system, 28 is unwrapping wire parts, 29 is rolling parts, 30 is motor, 31 is squeegee roller, 32 is extruding die body, 33 is assembling through hole, 34 is die sleeve, 35 is core rod, 36 is extruding containing cavity, 37 is opening, 38 is aluminium bar, 39 is take-up buffer, 40 is base, 41 is support column, 42 is load bearing seat, 43 is step surface, 44 is spring, 45 is guide roller, 46 is transmission pressure, 47 is steel tower.

Embodiment

In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, be now described with reference to the accompanying drawings embodiment of the present utility model.Obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection range of the present utility model.

See Fig. 3-10, with the transmission pressure of carbon fiber core, comprise carbon fiber plug 10, be in the metal conducting layer 11 of carbon fiber plug outside, metal conducting layer is be sheathed on to the bulk metal pipe that carbon fiber core clavate becomes to surround completely on carbon fiber plug, and carbon fiber plug outer surface and metal conducting layer inner surface form entirety by extruding.

Carbon fiber plug comprises carbon fiber core 12 and surrounds the sheath 13 of carbon fiber core, and sheath is that resin material is made, and the outer surface of this sheath and above-mentioned metal conducting layer inwall form entirety by extruding.Metal conducting layer is the conductive layer that aluminium or copper product are made.Carbon fiber core is cylindrical, can certainly adopt other shapes to substitute, as square, triangle, ellipse etc.; Sheath 13 is corresponding with the shape of carbon fiber core or carry out staggered selecting, and is extruded formation firmly overall between carbon fiber core outer wall and jacket inner wall.

Wherein, be provided with between metal conducting layer inner surface and jacket outer surface and stretch into sheath or/and stretch into the lug boss 14 of metal conducting layer from sheath from metal conducting layer; In concrete enforcement, the lug boss 14 of outwards protuberance can be set at the outer surface of carbon fiber plug, namely lug boss is arranged at the outer surface of sheath 13, such metal conducting layer can more firmly be attached to carbon fiber mandrel outer, and the shape of lug boss 14 can circular, square, polygon etc.; Lug boss 14 is penetrating metal conductive layer not, and to ensure the electric conductivity of metal conducting layer, equally, lug boss 14 can be arranged on metal conducting layer inner surface; In enforcement, can arrange lug boss, arrange lug boss at the outer surface of sheath or arrange lug boss at metal conducting layer inner surface and jacket outer surface simultaneously at metal conducting layer inner surface, these three kinds of modes are selected according to different needs.

In concrete enforcement, under the prerequisite ensureing transmission pressure electric conductivity, cannelure 15 can also be offered on metal conducting layer, this cannelure is penetrating metal conductive layer not, metal conducting layer can be awarded like this in expansion process, produce certain expansion space, expand even if metal conducting layer produces at length direction, expanded in the expansion space that also can be formed by cannelure, completely avoid metal conducting layer in expansion process, produce the power promoting support tower due to the change of length, ensure the fail safe of transmission system.

See Figure 11-18, with the transmission pressure manufacture craft of carbon fiber core, this manufacture craft, comprises the steps:

Step one, carry out unwrapping wire by tension stringing apparatus 16 pairs of carbon fiber plugs 10, carbon fiber plug passes from the nib 20 of extrusion cladding machine 18 mould 19 through the traction of draw-gear 17, tension stringing apparatus produces tensile force f 1 to carbon fiber plug, draw-gear produces tractive effort F2 to carbon fiber plug, described tensile force f 1 is contrary with the direction of tractive effort F2, and tractive effort F2 is greater than tensile force f 1; The large I that tractive effort F2 deducts tensile force f 1 adjusts the needs that carbon fiber plug pretension requires according in transmission pressure, but the size of tractive effort F2 and tensile force f 1 can not be broken or drawing crack carbon fiber plug.

Step 2, aluminium bar 38 pass through the orderly unwrapping wire of aluminium bar actinobacillus device 21 successively, and carry out alignment by the guiding of guider 22 to coalignment 23 and then clean through aluminium bar purging system 24, enter again in extrusion cladding machine and aluminium bar is squeezed into liquid state, and the aluminum forming liquid state is extruded to around the carbon fiber plug in nib, the motion of carbon fiber plug 10 is driven by draw-gear, such liquid aluminium just can form at carbon fiber plug outer surface the aluminium conductive layer 26 being coated with carbon fiber plug, completes the making of transmission pressure; And then through automatic on-line purging system 27, cleaning cooling is carried out to the transmission pressure after shaping.

Transmission pressure in step 2 is carried out rolling by step 3, employing wind-up roll 25.

In transmission pressure makes, tractive effort F2 is greater than tensile force f 1, and can ensure that carbon fiber plug produces pretension, the aluminum of such liquid is coated on after on carbon fiber plug, aluminium lamination is by firmly extrusion cladding and carbon fiber core clavate integrally, make the transmission pressure 46 made produce pretension.By the transmission pressure that manufacture craft is made, there is large, the low line loss of transmission capacity above, lightweight, intensity is high, in operation, corona loss is little, in addition because inside adopts the synthesis carbon fiber plug of nonferromugnetic material, magnetic loss and eddy current loss that wire material causes can not be there is, energy-saving effect highly significant.Relative to adopt in prior art many aluminium conductors be wrapped in the technique of core outside simple, make easily, the equipment of input is few, and cost is low; And connectivity robustness between carbon fiber plug and aluminium lamination is strong.

See Figure 11-18, with the transmission pressure making apparatus of carbon fiber core, this making apparatus comprises extrusion cladding machine 18, be in the tension stringing apparatus 15 in extrusion cladding machine front, with the draw-gear 17 being positioned at extrusion cladding machine rear, tension stringing apparatus comprises and carries out unwrapping wire to carbon fiber plug and the unwrapping wire parts 28 carbon fiber plug being produced to the reverse power of pullling in unwrapping wire process, draw-gear comprises and to draw carbon fiber plug and to produce the rolling parts 29 of forward tractive effort, and rolling parts drive unwrapping wire parts be that forward drawing-type moves by carbon fiber plug.In concrete enforcement, unwrapping wire parts 28, rolling parts 29 are roll body or disk body, unwrapping wire parts, rolling parts adopt the motor 30 that rotation direction is different to drive rotation respectively, realize unwrapping wire parts, the difference of rolling parts turns to, and drive unwrapping wire parts to be the motion of forward drawing-type because rolling parts pass through carbon fiber plug, make the carbon fiber plug between unwrapping wire parts and rolling parts produce pretension like this.

Extrusion cladding machine comprises extrusion molding dies 19, squeegee roller 31, extrusion molding dies comprises the extruding die body 32 with squeegee roller frictional fit, frictional fit between squeegee roller and extruding die body, when such aluminum enters between squeegee roller and extruding die body, liquid state can be formed by temperature arrising caused by friction, the assembling through hole 33 running through extruding die body both ends of the surface is offered in extruding die body, die sleeve 34 is fixed with in assembling through hole, and be assemblied in die sleeve the core rod 35 with shaping nib 20, outer surface in the middle part of die sleeve and be provided with between extruding die body inner surface and extrude containing cavity 36, this extruding containing cavity forms liquid aluminium for retaining by extruding die body and squeegee roller friction and Extrusion, the radial direction of core rod offers the opening 37 being communicated with shaping nib in extruding containing cavity and core rod, by the continuous extruding between squeegee roller and extruding die body, liquid aluminium constantly extrudes and enters into shaping nib by opening 37 in extruding containing cavity, final extrusion cladding is on carbon fiber plug.In order to make carbon fiber plug better keep tensile force and ensure extrusion stretching more smoothly, the shaping nib center of the unwrapping wire end of tension stringing apparatus, the traction end of draw-gear and core rod is on same straight line.

Take-up buffer 39 is provided with before employing wind-up roll 25 pairs of transmission pressures carry out rolling, take-up buffer comprises base 40, vertically be fixedly installed on the support column 41 on base, and be sheathed on the load bearing seat 42 that support column can move up and down along support column, support column is provided with step surface 43, and be sheathed on spring 44 spacing by step surface on support column, the upper end of this spring is subject to the compression of load bearing seat, the multiple guide rollers 45 be vertical setting with transmission pressure transmission direction are provided with in load bearing seat, multiple guide roller arranges the bit port that allows being formed and supply transmission pressure to pass through alternatively up and down, the unnecessary rolling power of transmission pressure is overcome by the elasticity of spring, play certain cushioning effect, such structure avoids the rolling power due to wind-up roll 25 too large, the transmission pressure rolling that causes is chaotic and cause damage to transmission pressure.

See Figure 19, in the utility model, carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding, such carbon fiber plug can produce pretension, with metal conducting layer in the gesture involved, whole transmission pressure 46 is erected on steel tower 47 and forms straight line, can not bend, even if bending of producing due to long span, also can substantially ignore; Metal conducting layer in the utility model is bulk metal pipe, it is made to be coated on carbon fiber plug by existing continued extrusion mode, simple for production, because metal conducting layer is bulk metal pipe, the effective area of such transmission of electricity is larger, the thickness of metal conducting layer can be accomplished less relative to prior art, and the consumption of conductive metal material reduces, and also mitigates the weight of power transmission line simultaneously.

Claims (7)

1. with the transmission pressure of carbon fiber core, comprise carbon fiber plug, be in the metal conducting layer of carbon fiber plug outside, it is characterized in that, described metal conducting layer is be sheathed on to the bulk metal pipe that carbon fiber core clavate becomes to surround completely on carbon fiber plug, and carbon fiber plug outer surface and metal conducting layer inner surface form one by extruding.

2. according to claim 1 with the transmission pressure of carbon fiber core, it is characterized in that, described carbon fiber plug comprises carbon fiber core and surrounds the sheath of carbon fiber core, and the outer surface of this sheath and above-mentioned metal conducting layer inwall form one by extruding.

3. according to claim 2 with the transmission pressure of carbon fiber core, it is characterized in that, be provided with between described metal conducting layer inner surface and jacket outer surface and stretch into sheath or/and stretch into the lug boss of metal conducting layer from sheath from metal conducting layer.

4. according to claim 1 or 2 or 3 with the transmission pressure of carbon fiber core, it is characterized in that, described metal conducting layer is that aluminium or copper product are made.

5. with the transmission pressure making apparatus of carbon fiber core, it is characterized in that, this making apparatus comprises extrusion cladding machine, be in the tension stringing apparatus in extrusion cladding machine front, with the draw-gear being positioned at extrusion cladding machine rear, tension stringing apparatus comprises and carries out unwrapping wire to carbon fiber plug and unwrapping wire parts carbon fiber plug being produced to the reverse power of pullling in unwrapping wire process, draw-gear comprises and to draw carbon fiber plug and to produce the rolling parts of forward tractive effort, and described rolling parts drive unwrapping wire parts be that forward drawing-type moves by carbon fiber plug.

6. the transmission pressure making apparatus with carbon fiber core according to claim 5, it is characterized in that, described extrusion cladding machine comprises extrusion molding dies, squeegee roller, extrusion molding dies comprises the extruding die body with squeegee roller frictional fit, the assembling through hole running through extruding die body both ends of the surface is offered in extruding die body, die sleeve is fixed with in assembling through hole, and be assemblied in die sleeve the core rod with shaping nib, outer surface in the middle part of die sleeve and be provided with extruding containing cavity between extruding die body inner surface, this extruding containing cavity extrudes by extruding die body and squeegee roller the material forming liquid state for retaining, the radial direction of described core rod offers the opening being communicated with shaping nib in extruding containing cavity and core rod.

7. the transmission pressure making apparatus with carbon fiber core according to claim 6, is characterized in that, the shaping nib center of the unwrapping wire end of tension stringing apparatus, the traction end of draw-gear and core rod is on same straight line.