CN113192671B - Basalt fiber fireproof cable - Google Patents
Basalt fiber fireproof cable Download PDFInfo
- Publication number
- CN113192671B CN113192671B CN202110466292.8A CN202110466292A CN113192671B CN 113192671 B CN113192671 B CN 113192671B CN 202110466292 A CN202110466292 A CN 202110466292A CN 113192671 B CN113192671 B CN 113192671B
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- layer
- cable
- wire
- basalt fiber
- graphite
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Abstract
The invention discloses a basalt fiber fireproof cable, which is flat in section outline and comprises a basalt fiber layer and a plurality of graphene cable units arranged in the basalt fiber layer, wherein a graphite core, a rubber layer, a mica tape layer, a shielding layer and an outer winding layer are sequentially arranged in each group of graphene cable units from inside to outside; the graphite core comprises a plurality of strands of stranded graphite wires, a plurality of metal wires are arranged on the outer wall of the rubber layer, and the mica tape layer is spirally wound on the outer wall of the rubber layer; the fireproof cable provided by the invention is provided with a plurality of independent graphene cable units, has conductivity, flexibility and fireproof performance, and is particularly suitable for outdoor construction scenes.
Description
Technical Field
The invention relates to the field of cables, in particular to a basalt fiber fireproof cable.
Background
The flat cable is an indispensable insulating material at present, and is often suitable for various ranges of large-scale hoisting machinery, traveling cranes, wharf hoisting machines, car dumpers and the like; the flat high-flexibility wire can adapt to the working conditions of complex terrain, frequent receiving and transmitting, severe climate and the like in field construction, and is widely applied by people.
Graphite has excellent conductivity and mechanical properties such as vibration resistance, heat resistance and mechanical impact resistance, so that a basalt fiber fireproof cable adopting a graphite conductive medium is needed to adapt to complex working conditions such as field construction.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a basalt fiber fireproof cable.
The purpose of the invention is realized by the following technical scheme:
a basalt fiber fireproof cable is flat in section outline and comprises a basalt fiber layer and a plurality of graphene cable units arranged in the basalt fiber layer, wherein a graphite core, a rubber layer, a mica tape layer, a shielding layer and an outer winding layer are sequentially arranged on each group of graphene cable units from inside to outside;
the graphite core comprises a plurality of strands of stranded graphite wires, a plurality of metal wires are arranged on the outer wall of the rubber layer, and the mica tape layer is spirally wound on the outer wall of the rubber layer;
and a fastening layer is also arranged between the graphite core and the rubber layer and comprises a winding layer wound on the graphite core and an insulating layer wound on the winding layer.
In some preferred embodiments, a plurality of strip-shaped notches are uniformly arranged on the outer wall of the rubber layer, the extending direction of the notches is the same as the extending direction of the fireproof cable, a group of metal wires are embedded in each group of notches, and the metal wires are wound on the rubber layer by the mica tape layer.
In some preferred embodiments, the graphite strands comprise glass fibers and expanded graphite attached to the glass fibers.
In some preferred embodiments, the shielding layer is a braided mesh of tinned copper wires.
In some preferred embodiments, the plurality of graphene cable units are arranged in line within the basalt fiber layer.
In some preferred embodiments, the metal wire is a steel or copper wire or an aluminum wire.
The invention has the following advantages:
the fireproof cable is flat, and the conductive medium of the innermost layer is made of graphite, so that the fireproof cable has the characteristics of excellent heat resistance and conductivity; the metal wires are arranged on the rubber layer on the outer layer of the graphite core to enhance the structural strength of the whole cable, and the mica tape layer is arranged on the outer layer of the graphene cable unit to achieve the fireproof and flame-retardant functions; have flexibility, electric conductivity and fire behavior simultaneously concurrently, be particularly useful for outdoor construction scene.
Drawings
Fig. 1 is a schematic view of the overall structure of the basalt fiber fireproof cable of the present invention;
fig. 2 is a schematic structural diagram of a graphene cable unit of the basalt fiber fireproof cable according to the present invention;
FIG. 3 is a schematic view of a partial structure of production equipment for the basalt fiber fireproof cable of the present invention;
FIG. 4 is a schematic diagram of wire embedding of the basalt fiber fireproof cable of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
in the figure: 1-basalt fiber layer, 2-graphene cable unit, 200-graphite core, 210-fastening layer, 211-winding layer, 212-insulating layer, 220-rubber layer, 221-notch, 230-metal wire, 240-mica tape layer, 250-shielding layer, 260-outer winding layer, 3-production equipment, 30-machine base, 31-threading disc, 310-threading hole, 32-winding disc, 33-rubber box, 330-rubber dropping tube, 34-motor, 340-gear, 35-wire winding wheel, 36-mica tape, 37-guide block, 370-spring, 371-tubule, 38-roller, 380-connecting rod, 381-convex ring and 382-inner tube.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
The first embodiment is as follows:
referring to fig. 1 and 2, a basalt fiber fireproof cable has a flat cross-sectional profile, and includes a basalt fiber layer 1 and a plurality of graphene cable units 2 arranged in the basalt fiber layer 1, in this embodiment, the graphene cable units 2 are three groups and are arranged in a row in the basalt fiber layer 1.
In this embodiment, each group of graphene cable units 2 is sequentially provided with a graphite core 200, a fastening layer 210, a rubber layer 220, a mica tape layer 240, a shielding layer 250, and an outer winding layer 260 from inside to outside.
The fastening layer 210 comprises a winding layer 211 and an insulating layer 212, the graphite core 200 and the winding layer 211 are both composed of glass fiber and expanded graphite, the graphite has stable chemical properties, is acid-resistant and alkali-resistant, adopts a graphite material to replace the traditional metal wire, and has environmental protection; the expanded graphite is high-purity graphite, and is expanded to graphite worms with the volume more than 200 times of the self volume by high temperature after a plurality of procedures such as washing, acid washing and the like, and then glass fiber is used as a framework, the expanded graphite is attached to the glass fiber and is combined with conductive adhesive for high-pressure shaping, so that conductive cloth with the width of 300-500mm is manufactured; the winding layer 211 is formed by overlapping and winding a plurality of layers of conductive cloth, the graphite core 200 is also made of the conductive cloth, and the process is as follows: the conductive cloth is cut into strips and then twisted into fine graphite wires, a plurality of the fine graphite wires are wound and wound into a single thick graphite wire, and the graphite core is formed by stranding and connecting a plurality of strands of graphite wires.
Specifically, after twisting the plurality of graphite cores 200, the plurality of groups of graphene cords 200 are wound and fastened together by the winding layer 211 made of the graphene conductive cloth, and then are further wound and fixed by the insulating layer 212 to maintain the shape.
The outer circumferential wall of the rubber layer 220 is uniformly provided with a plurality of strip-shaped notches 221, the extending direction of each group of notches 221 is the same as the extending direction of the fireproof cable, a group of metal wires 230 are embedded in each group of notches 221 to enhance the axial connection strength of the cable, the mica tape layer 240 is spirally wound on the outer wall of the rubber layer 220, the metal wires 230 are fixed on the outer wall of the rubber layer 220, the mica tape layer 240 also has the fireproof and flame-retardant functions, the metal wires 230 are made of copper wires, aluminum wires or steel wires, and when the steel wires are selected, steel wire ropes twisted by multiple steel wires are selected.
Example two:
as an improvement to the prior art, this embodiment only describes the mechanisms involved in the process of embedding the metal wire 230 into the notch 221 and winding the mica tape layer 240 in the cable production, and the production process and structure of the rest of the cable are consistent with those of the prior art, and are not described herein again.
Referring to fig. 3 to 5, a set of base 30 is vertically disposed in the production equipment 3, a plurality of notches 221 are disposed on the cable semi-finished product with the outermost layer being the rubber layer 220, and the semi-finished cable is inserted into the base 30 and is pulled by a front pulling device (not shown).
A threading disc 31 is arranged on one side of the machine base 30, the inner diameter of the threading disc 31 is slightly larger than the inner diameter of a cable semi-finished product, and the cable semi-finished product is threaded through the threading disc 31, in this embodiment, 10 groups of notches 221 are arranged on the rubber layer 220, threading holes 310 corresponding to the 10 groups of notches 221 one by one are arranged on the side wall of the threading disc 31, first ends of 10 groups of metal wires 230 are wound on a group of reels (not shown), second ends of the metal wires are respectively threaded through a group of threading holes 310, the end parts of the second ends of the metal wires are respectively clamped in the group of notches 221, referring to fig. 4, the cable semi-finished product moves towards the right side, the reels rotate to pay off, and the metal wires 230 are clamped and embedded in the group of notches 221 one by one under the restriction of the threading holes 310 and the pressing of the inner wall of the threading disc 31; in addition, still be equipped with 10 groups of guide blocks 37 on the inner wall of one side of threading dish 31, 10 groups of guide block 37 each joint is in a set of breach 221, and as the spacing when moving to the right side to semi-manufactured cable, avoid semi-manufactured cable rotation distortion for wire 230 can block in the breach 221 accurately.
The opposite side of frame 30 is provided with wire reel 32 of fluted disc structure, be equipped with on the frame 30 with wire reel 32 meshing's gear 340, gear 340 is connected with driving motor 34, make wire reel 32 rotatable, it is provided with the rotatable kinking wheel 35 of a plurality of groups to wind around the heart on the wire reel 32, the winding has mica tape 36 on the kinking wheel 35, make in the back of wire 230 imbeds the breach 221, through mica tape 36's winding formation mica tape layer 240, reentrant next step's process.
In addition, in order to fix the metal wire 230 embedded in the notch 221 by an adhesive, the base 30 is further provided with a glue box 33 containing the adhesive, 10 groups of glue dripping pipes 330 are led out from the lower part of the glue box 33, the tail end of each group of glue dripping pipes 330 is aligned in one group of notches 221, and the glue dripping process is arranged before the metal wire 230 is embedded in the notches 221.
Then, referring to fig. 4 and 5, a set of rollers 38 is rotatably disposed in each set of notches 221, the rollers 38 are fixed by a first end of a set of links 380, and a certain friction exists between the rollers 38 and the notches 221 so that the rollers 38 can rotate.
The second end of the connecting rod 380 is arranged in the guide block 37 in a penetrating manner, the guide block 37 is of a hollow structure, a group of springs 370 are arranged in the guide block 37, a convex ring 381 is arranged on the surface of the connecting rod 380 positioned in the guide block 37, the springs 370 are clamped between the convex ring 381 and the inner wall of the second end of the guide block 37, and when the semi-finished cable stops conveying, the connecting rod 380 is driven by the springs 370 to move in the opposite direction of the moving direction of the semi-finished cable until the convex ring 381 abuts against the inner wall of the first side of the guide block 37.
When the semi-finished cable moves towards the right side, friction is formed between the semi-finished cable and the roller 38 until the friction force and the elastic force of the spring 370 reach the first state when the balance is achieved, the connecting rod 380 does not move towards the right, at the moment, the spring 370 is in a slightly compressed state, and rolling friction is formed between the roller 38 and the notch 221.
The outer wall of the second end of the guide block 37 is provided with a tubule 371, the second end of the connecting rod 380 is connected with a group of inner tubes 382, the inner tubes 382 are positioned in the tubule 371, a group of round holes are arranged on the side walls of the tubule 371 and the inner tubes 382 in a penetrating way, during the first state, the round holes on the inner tubes 382 and the round holes on the tubule 371 are concentric, the glue dripping tube 330 is arranged and fixed in the side wall of the thread penetrating plate 31 in a penetrating way, the lower end of the glue dripping tube 330 is arranged in the round holes of the tubule 371 and the inner tubes 382 in a penetrating way, during the first state, the glue in the glue box 33 falls into the notch 221 along the glue dripping tube 330, so that the follow-up metal wire 230 can be further bonded and fixed in the notch 221.
When the semi-finished cable stops conveying, which is the second state, the connecting rod 380 moves leftwards under the driving of the spring 370, and the round hole on the thin tube 371 and the round hole on the inner tube 382 are staggered, so that the glue dripping tube 330 is squeezed flat, and glue does not flow out any more.
The structure drives the glue dripping process of the glue dripping pipe 330 through the movement of the semi-finished cable, manual glue brushing in advance is not needed, and the labor intensity is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a basalt fiber fireproof cable, is the platykurtic, includes basalt fiber layer (1) and locates a plurality of graphite alkene cable unit (2) in basalt fiber layer (1), its characterized in that:
each group of graphene cable units (2) is sequentially provided with a graphite core (200), a rubber layer (220), a mica tape layer (240), a shielding layer (250) and an outer wrapping layer (260) from inside to outside; the graphite core (200) comprises a plurality of stranded graphite wires, a plurality of metal wires (230) are arranged on the outer wall of the rubber layer (220), and the mica tape layer (240) is spirally wound on the outer wall of the rubber layer (220);
a fastening layer (210) is further arranged between the graphite core (200) and the rubber layer (220), and the fastening layer (210) comprises a winding layer (211) wound on the graphite core (200) and an insulating layer (212) wound on the winding layer (211);
a plurality of strip-shaped gaps (221) are uniformly arranged on the outer wall of the rubber layer (220), the extending direction of the gaps (221) is the same as that of the fireproof cable, a group of metal wires (230) is embedded in each group of gaps (221), and the metal wires (230) are wound on the rubber layer (220) through mica tape layers (240);
the embedding of the metal wire (230) and the winding of the mica tape layer (240) are completed through production equipment (3), a cable of which the outermost layer is a rubber layer (220) and is provided with a plurality of notches (221) is defined as a semi-finished cable, a group of bases (30) are vertically arranged in the production equipment (3), a wire threading disc (31) is arranged on one side of each base (30), the inner diameter of each wire threading disc (31) is larger than that of the semi-finished cable, and the semi-finished cable is threaded in the wire threading disc (31); threading holes (310) which are in one-to-one correspondence with the notches (221) are formed in the side wall of the threading disc (31), the first ends of the metal wires (230) are wound on a set of reel respectively, the second ends of the metal wires are arranged in a set of threading holes (310) in a penetrating mode respectively, the end portions of the second ends of the metal wires are clamped in the notches (221) respectively, when the semi-finished cable moves towards the right side, the reel rotates to thread, and the metal wires (230) can be clamped and embedded in the notches (221) in one-to-one correspondence under the limitation of the threading holes (310) and the pressing of the inner wall of the threading disc (31);
the opposite side of frame (30) is provided with wire reel (32) of fluted disc structure, be equipped with gear (340) with wire reel (32) meshing on frame (30), gear (340) are connected with driving motor (34), make wire reel (32) rotatable, it is provided with rotatable kinking wheel (35) of a plurality of groups to encircle the heart on wire reel (32), it has mica tape (36) to twine on kinking wheel (35), make in back that wire (230) are embedded into breach (221), winding through mica tape (36) forms mica tape layer (240).
2. The basalt fiber fireproof cable of claim 1, wherein: the graphite wire comprises glass fibers and expanded graphite attached to the glass fibers.
3. The basalt fiber fireproof cable of claim 1, wherein: the shielding layer (250) is a tinned copper wire mesh grid.
4. The basalt fiber fireproof cable of claim 1, wherein: the plurality of graphene cable units (2) are arranged in a row in the basalt fiber layer (1).
5. The basalt fiber fireproof cable of claim 1, wherein: the wire (230) is shown as a steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466292.8A CN113192671B (en) | 2021-04-28 | 2021-04-28 | Basalt fiber fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466292.8A CN113192671B (en) | 2021-04-28 | 2021-04-28 | Basalt fiber fireproof cable |
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| Publication Number | Publication Date |
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| CN113192671A CN113192671A (en) | 2021-07-30 |
| CN113192671B true CN113192671B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110466292.8A Active CN113192671B (en) | 2021-04-28 | 2021-04-28 | Basalt fiber fireproof cable |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275624U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | Environment-friendly high temperature-resistant, fireproof and fire-resistant cable |
| CN204537720U (en) * | 2015-01-13 | 2015-08-05 | 上酉（天津）电缆有限公司 | Polyimides lapped insulation basalt fibre jacketed cable |
| CN106057290A (en) * | 2016-07-18 | 2016-10-26 | 兴乐电缆有限公司 | Bending-resistant and tensile elevator or lift travelling flexible fireproof cable |
| CN209880863U (en) * | 2019-04-09 | 2019-12-31 | 四川健坤科技有限公司 | Flexible graphite grounding body |
| CN212010496U (en) * | 2020-06-18 | 2020-11-24 | 广安金侑达电业科技有限公司 | Environment-friendly safe fireproof cable |
-
2021
- 2021-04-28 CN CN202110466292.8A patent/CN113192671B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275624U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | Environment-friendly high temperature-resistant, fireproof and fire-resistant cable |
| CN204537720U (en) * | 2015-01-13 | 2015-08-05 | 上酉（天津）电缆有限公司 | Polyimides lapped insulation basalt fibre jacketed cable |
| CN106057290A (en) * | 2016-07-18 | 2016-10-26 | 兴乐电缆有限公司 | Bending-resistant and tensile elevator or lift travelling flexible fireproof cable |
| CN209880863U (en) * | 2019-04-09 | 2019-12-31 | 四川健坤科技有限公司 | Flexible graphite grounding body |
| CN212010496U (en) * | 2020-06-18 | 2020-11-24 | 广安金侑达电业科技有限公司 | Environment-friendly safe fireproof cable |
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| Publication number | Publication date |
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| CN113192671A (en) | 2021-07-30 |
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