CN108766638A

CN108766638A - A kind of pull-up cable of highly resistance

Info

Publication number: CN108766638A
Application number: CN201810761628.1A
Authority: CN
Inventors: 宋青林; 张胜利; 许国中
Original assignee: JIANGSU ZHUYING SPECIAL CABLE CO Ltd
Current assignee: JIANGSU ZHUYING SPECIAL CABLE CO Ltd
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2018-11-06

Abstract

The invention discloses a kind of pull-up cables of highly resistance, including cable core, the cable core is triangularly arranged by three insulated wire cores, and radians reinforcing rib, the outermost surface of three arc sides and three insulated wire cores of the reinforcing rib such as filling fit closely at the center that three insulated wire cores are twisted；The superficies correspondence of three insulated wire cores between any two fits closely three arc reinforcers, and three arc reinforcers are spliced into circle；Cable core is tightened by wrapped multilayer binding tape outside three arc reinforcers, the compound outer jacket outside binding tape；The insulated wire cores are made of conductor layer and the insulating layer being extruded in outside conductor layer；The conductor monofilament that the conductor layer is centered around by central tensile reinforcer and centered on tensile reinforcement member outside tensile reinforcement member forms；By the effect of reinforcer, the intensity and flexibility of cable are substantially increased.

Description

A kind of pull-up cable of highly resistance

Technical field

The present invention relates to field of cables, and in particular to a kind of pull-up cable of highly resistance.

Background technology

It is well known that the radiation installation of cable is all to carry out traction progress by external force, especially outdoor long length Power cable, it is generally the case that the actinobacillus device of construction site be all it is passive, can not active unwrapping wire, and be all it is easy, So cable, which needs prodigious outer force effect just, can be pulled gradually mounting and installation, this when if it is small bore especially Aluminium cable can not bear the external tensile force of overload, just will appear conductor and be attenuated or even be pulled off and the structures such as insulating layer There is a situation where being broken, after cable laying installs, after testing the performances such as whole cable no power or insulation resistance without Method meets the requirement that safe operation uses, and at this time has to look for the position of fault, carries out reparation of doing over again, and but will occur when serious whole The phenomenon that root cable is broken many times, at this time the searching of either fault point still do over again reparation be all extremely difficult, make At prodigious economic loss and serious schedule delays.So the exploitation pull-up cable of highly resistance, avoids the occurrence of and is pulled off, draws and attenuates, insulating The phenomenon that structural breaks such as layer, it is ensured that the operation that all line securities are stablized is the task of top priority.

Find there is colleague to invent a variety of tensile type cables, such as Chinese patent ZL201220283764.2 is adopted through retrieval With wire armor is coated in inner sheath side, such structure reduces the bending of cable while increasing tensile capacity Performance also considerably increases the weight and manufacturing cost of cable；For another example Chinese patent ZLCN201420493629.X is used Tension hole is set outside insulating layer, then copper wire is installed in tension hole as reinforcer, such structure increases cable Outer diameter also reduces the bending property of cable, and the structure in tension hole can also cause to damage to insulating layer, to insulating performance of cable Stability has a harmful effect, while mechanical external force when copper wire can not also carry installation as tensile reinforcement member, especially electric power The environment of cable field laying；Therefore it needs exploitation a kind of simple and practical, is easy production, reduces cost and can bear larger The pull-up cable application of highly resistance of mechanical tensile forces is in use in special circumstances.

In order to avoid the smaller cable in section, generated after especially aluminium cable is in laying installation by the traction of external force Cable body be extended, the structure of conductor changes, and insulating layer etc. is broken, cable cannot according to design stability run or Be unable to operate normally, and such case in the use of cable frequent occurrence, bring about great losses, this cable is widely used in The every field of cable transfer.

Invention content

Goal of the invention：In order to overcome the deficiencies in the prior art, a kind of high tensile cable is provided, cable is improved Intensity and flexibility.

Technical solution：To achieve the above object, the present invention provides a kind of pull-up cable of highly resistance, including cable core, the cable Core is triangularly arranged by three insulated wire cores, the radians reinforcing rib such as filling at the center that three insulated wire cores are twisted, The outermost surface of three arc sides and three insulated wire cores of the reinforcing rib fits closely；Three insulated wire cores two-by-two it Between superficies correspondence fit closely three arc reinforcers, three arc reinforcers are spliced into circle；Reinforce in three arcs Part is outer to be tightened cable core by wrapped multilayer binding tape, the compound outer jacket outside binding tape；The insulated wire cores are by conductor layer And the insulating layer being extruded in outside conductor layer is constituted；The conductor layer is by central tensile reinforcer and with tensile reinforcement member Centered around the conductor monofilament composition outside tensile reinforcement member.

Further, the described equal radians reinforcing rib is steel type reinforcing rib, can carry the mechanical force of cable.

Further, the arc reinforcer is PC plastic reinforcer, and cable core is prevented to be extruded.

Further, the tensile reinforcement member includes continuous basalt fiber, glass fibre, carbon fiber and resin matrix, Continuous basalt fiber, glass fibre and carbon fiber are compounded on resin matrix.

Further, the compound outer jacket includes inner sheath and oversheath, is compiled between the inner sheath and oversheath Knit steel-tape armouring layer.

Further, the conductor monofilament is copper wire, aluminum-alloy wire or aluminium wire.

Compared with prior art, the beneficial effects of the present invention are：

1, this cable uses different reinforcers from conductor to cable core so that cable has very strong pull resistance, anti-extrusion, carrying Power, solves the smaller cable in section, and cable sheet is generated after especially aluminium cable is in laying installation by the traction of external force Body is extended, and the structure of conductor changes, and insulating layer etc. is broken, and cable cannot run according to design stability or can not be just Often operation, and such case in the use of cable frequent occurrence, the problem of bringing about great losses, which is widely used in electricity The every field of cable conveying；

2, conductor reinforcer is due to being compounded on resin matrix by continuous basalt fiber, glass fibre and carbon fiber, continuously Basalt fibre greatly enhances the intensity of reinforcer, and carbon fiber and glass fibre increase the flexibility of reinforcer, by the reinforcer It is stranded on existing cable, plays the role of an absorbability, when bending cable is with cable is pullled, these power are all married again Onto reinforcer, by the effect of reinforcer, the intensity and flexibility of cable are substantially increased；

3, continuous basalt fiber, glass fibre and carbon fiber are compounded in the distribution form on resin matrix and are：Triangle point Cloth, forms a complementation between three, and forming one mutually pulls power, increases the intensity and toughness of reinforcer；

4, using compound outer jacket, although structure does not change, being extruded in layer before ratio reduces production routine.

Description of the drawings

Fig. 1 is the structural diagram of the present invention；

Fig. 2 is the structural schematic diagram of compound outer jacket；

Fig. 3 is the structural schematic diagram of tensile reinforcement member.

Specific implementation mode

In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate It the present invention rather than limits the scope of the invention, after having read the present invention, those skilled in the art are to of the invention each The modification of kind equivalent form falls within the application range as defined in the appended claims.

As shown in Figs. 1-2, the present invention provides a kind of pull-up cable of highly resistance, including cable core, and the cable core thoroughly does away with edge by three Core is triangularly arranged, the radians reinforcing rib 1 such as filling at the center that three insulated wire cores are twisted, and the three of the reinforcing rib The outermost surface of arc side and three insulated wire cores fits closely；The superficies of three insulated wire cores between any two Correspondence fits closely three arc reinforcers 2, and three arc reinforcers are spliced into circle；By wrapped outside three arc reinforcers Multilayer binding tape 3 tightens cable core, the compound outer jacket 10 outside binding tape；The compound outer jacket includes inner sheath 4 and oversheath 6, steel-tape armouring layer 5 is woven between the inner sheath and oversheath；The insulated wire cores are by conductor layer and are extruded in conductor Insulating layer 7 outside layer is constituted；The conductor layer is centered around anti-by central tensile reinforcer 8 and centered on tensile reinforcement member The conductor monofilament 9 outside reinforcer is drawn to form, the conductor monofilament is copper wire, aluminum-alloy wire or aluminium wire.

As shown in figure 3, the tensile reinforcement member 8 includes continuous basalt fiber 81, glass fibre 82, carbon fiber 83 and tree Aliphatic radical body 84, continuous basalt fiber, glass fibre and carbon fiber are compounded on resin matrix, which is phenolic aldehyde tree The hybrid resin of fat, Corvic or both, continuous basalt fiber greatly enhance the intensity of reinforcer, carbon fiber and Glass fibre increases the flexibility of reinforcer, which is stranded on existing cable, the work of an absorbability is played With when bending cable is with cable is pullled, these power are all married again onto reinforcer, by the effect of reinforcer, are greatly improved The intensity and flexibility of cable.

There are many concrete application approach of the present invention, the above is only a preferred embodiment of the present invention, it is noted that for For those skilled in the art, without departing from the principle of the present invention, it can also make several improvements, this A little improve also should be regarded as protection scope of the present invention.

Claims

1. a kind of pull-up cable of highly resistance, it is characterised in that：Including cable core, the cable core is by three insulated wire cores rows triangular in shape It arranges, the radians reinforcing rib such as filling at the center that three insulated wire cores are twisted, three arc sides of the reinforcing rib are thoroughly done away with three The outermost surface of edge core fits closely；The superficies correspondence of three insulated wire cores between any two fits closely three A arc reinforcer, three arc reinforcers are spliced into circle；By wrapped multilayer binding tape by cable outside three arc reinforcers Core tightens, the compound outer jacket outside binding tape；The insulated wire cores are by conductor layer and the insulating layer being extruded in outside conductor layer It constitutes；The conductor layer is centered around leading outside tensile reinforcement member by central tensile reinforcer and centered on tensile reinforcement member Body monofilament forms.

2. the pull-up cable of highly resistance according to claim 1, it is characterised in that：The described equal radians reinforcing rib is that steel type is reinforced Muscle.

3. the pull-up cable of highly resistance according to claim 1, it is characterised in that：The arc reinforcer is reinforced for PC plastic Part.

4. the pull-up cable of highly resistance according to claim 1, it is characterised in that：The tensile reinforcement member includes continuous basalt Fiber, glass fibre, carbon fiber and resin matrix, continuous basalt fiber, glass fibre and carbon fiber are compounded in resin matrix On.

5. the pull-up cable of highly resistance according to claim 1, it is characterised in that：The compound outer jacket include inner sheath and Oversheath weaves steel-tape armouring layer between the inner sheath and oversheath.

6. the pull-up cable of highly resistance according to claim 1, it is characterised in that：The conductor monofilament is copper wire, aluminium alloy Silk or aluminium wire.