CN110164613B - Environment-friendly wear-resistant cable - Google Patents
Environment-friendly wear-resistant cable Download PDFInfo
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- CN110164613B CN110164613B CN201910539843.1A CN201910539843A CN110164613B CN 110164613 B CN110164613 B CN 110164613B CN 201910539843 A CN201910539843 A CN 201910539843A CN 110164613 B CN110164613 B CN 110164613B
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing 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
- H01B7/17—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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
- H01B7/181—Protections not provided for in groups H01B7/182 - H01B7/26 composed of beads or rings
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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Abstract
The invention belongs to the technical field of cables, and particularly relates to an environment-friendly wear-resistant cable; comprises a wire core, a wear-resistant layer and a partition ring; the wire core is positioned in the wear-resistant layer, the wear-resistant layer is uniformly provided with the isolating rings, the axes of the isolating rings are collinear with the axis of the wear-resistant layer, the inner diameter of each isolating ring is larger than that of the wear-resistant layer, and the outer side surfaces of the isolating rings and the outer side surfaces of the wear-resistant layer are coplanar; the invention is mainly used for laying cables in mountain and forest zones, and the isolating ring is arranged, so that after a sharp rock scratches a section of wear-resistant layer, the sharp rock can be pushed away by the isolating ring, and the probability that the sharp rock continues scratching the next section of wear-resistant layer is reduced; through setting up the storage chamber of gluing, when the wearing layer was scratched by sharp rock, the glue of storage intracavity flowed out, glues external grit, leaf in the place that the wearing layer was scratched, forms the one deck protective layer for the position that the wearing layer was scratched.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an environment-friendly wear-resistant cable.
Background
The exposed sharp rocks on the earth surface of the mountain forest zone are more, the environment is severe, when the cable is laid in the mountain forest zone and is pulled, the exposed sharp rocks on the earth surface can scratch the wear-resistant layer easily, even the wear-resistant layer is scratched, and then the wire core is scratched, so that stable power transmission and stable transmission of electric signals are influenced, and the environment-friendly wear-resistant cable which is specially suitable for being laid in the environment with more exposed sharp rocks on the earth surface of the mountain forest zone is urgently needed.
The technical scheme of environment-friendly wear-resistant cables also appears in the prior art, for example, a Chinese patent with application number 2017112254534 discloses a tensile movable cable for an environment-friendly wear-resistant drum, which comprises a cable core, wherein the cable core is formed by stranding a plurality of strands of anaerobic tinned copper wire conductors, the cable comprises a central cable group and a plurality of surrounding cable groups distributed outside the central cable group, and the central cable group comprises an ethylene propylene diene monomer insulating layer extruded outside the anaerobic tinned copper wire conductors and a butyronitrile extruded outer sheath extruded outside the ethylene propylene diene monomer insulating layer; the cable winding device is characterized in that the winding cable group is composed of an oxygen-free tinned copper wire conductor and an ethylene propylene diene monomer insulating layer, the cable winding belts are wound on the outer portions of the plurality of winding cable groups and the ethylene propylene diene monomer insulating layer, chlorinated polyethylene outer sheaths are extruded on the outer portions of the cable winding belts on the plurality of winding cable groups, a plurality of filling strips used for filling are arranged between the ethylene propylene diene monomer insulating layer and the cable winding belts, and the chlorinated polyethylene is used as the outer sheaths.
Although the technical scheme is low in smoke and environment-friendly, the scheme is not suitable for being used in mountain and forest areas with large exposed sharp rocks, and the sharp rocks are pushed away after the sharp rocks scratch a section of wear-resistant layer by arranging the partition ring, so that the probability that the sharp rocks continuously scratch the next section of wear-resistant layer is reduced; the glue storage cavity can not be arranged, when the wear-resistant layer is scratched by sharp rocks, outside gravels and leaves are adhered to the scratched position of the wear-resistant layer by using adhesive glue, and a protective layer is formed at the scratched position of the wear-resistant layer, so that the technical scheme still has a plurality of defects.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention is mainly used for laying the cable in the mountain area, and the isolating ring is arranged, so that after a section of wear-resistant layer is scratched by a sharp rock, the sharp rock can be pushed away by the isolating ring, and the probability that the next section of wear-resistant layer is continuously scratched by the sharp rock is reduced; through setting up the storage chamber of gluing, when the wearing layer was scratched by sharp rock, the bonding of storing up the intracavity was glued and is flowed out, glues external grit, leaf in the place that the wearing layer was scratched, gives the wearing layer position of being scratched and forms the one deck protective layer.
The technical scheme adopted by the invention for solving the technical problem is that the environment-friendly wear-resistant cable comprises a wire core, a wear-resistant layer and a partition ring; the wire core is positioned inside the wear-resistant layer, the wear-resistant layer wraps the wire core, and the wear-resistant layer is used for protecting the wire core and preventing sharp rocks from scratching the wire core; the wear-resistant layer is uniformly provided with isolating rings, the axes of the isolating rings are collinear with the axis of the wear-resistant layer, the inner diameter of each isolating ring is larger than that of the wear-resistant layer, and the outer side surfaces of the isolating rings and the outer side surfaces of the wear-resistant layer are coplanar; the partition ring is used for preventing sharp rocks from continuously scratching the next section of wear-resistant layer after scratching one section of wear-resistant layer; when laying the cable, behind the sharp rock fish tail one section wearing layer in earth's surface, the wall ring in the embedding wearing layer can keep out sharp rock to reduce the probability that sharp rock continues fish tail next section wearing layer.
The wear-resistant layer is made of polyvinyl chloride and butadiene rubber; polyvinyl chloride has the advantages of stability, difficult corrosion by acid and alkali and relatively high tolerance to heat, has the advantages of flame retardance, high chemical resistance (strong hydrochloric acid resistance, 90% sulfuric acid resistance, 60% nitric acid resistance and 20% sodium hydroxide resistance), good mechanical strength and good electrical insulation, has stable chemical and physical properties, is insoluble in water, alcohol and gasoline, and has low gas and water vapor permeability; the paint can resist hydrochloric acid with any concentration, sulfuric acid with the concentration of less than 90%, nitric acid with the concentration of 50-60% and caustic soda solution with the concentration of less than 20% at normal temperature, has certain chemical corrosion resistance, and is quite stable to salts; the polybutylece rubber has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagent resistance, higher tensile strength, elongation, reversible crystallinity and good adhesion. The paint has excellent ageing resistance, heat resistance, oil resistance and chemical corrosion resistance, and good inorganic acid and alkali corrosion resistance.
The left side surface and the right side surface of the partition ring are respectively provided with a bulge, one end of each bulge close to the axis of the partition ring is higher than one end far away from the axis of the partition ring, and the included angle alpha between the tangent of the outer end point of the arc surface on each bulge and the end surface of the partition ring is 15-20 degrees; after sharp rock is scratched into one section of wear-resistant layer, because the one end that the arch is close to the axis of the partition ring is higher than the one end that is far away from the axis of the partition ring, the included angle alpha between the outer end point tangent of the arc surface on the arch and the end face of the partition ring is 15-20 degrees, the arch can make sharp rock bump into the partition ring, and then push away sharp rock from the wear-resistant layer more easily, thereby reducing the probability that sharp rock further scratches the next section of wear-resistant layer.
The number of pairs of the bulges is at least eight, and the bulges are uniformly distributed along the circumferential direction of the partition ring; the bulge is spiral and is bent towards the same side, and the included angle beta between the tangent line of the arc end point at the outer side of the bulge and the radius of the partition ring is 30-45 degrees; when the partition ring pushes out sharp rocks scratched into the wear-resistant layer, the number of pairs of the protrusions is at least eight, the protrusions are uniformly distributed along the circumferential direction of the partition ring, the protrusions are spiral and are bent towards the same side, an included angle beta between the tangent line of the arc end point at the outer side of each protrusion and the radius of the partition ring is 30-45 degrees, the contact probability of the protrusions and the sharp rocks can be increased, the probability that the sharp rocks are pushed out by the protrusions is further increased, the probability that the sharp rocks scratch the next section of wear-resistant layer continuously is reduced, and the protection capability of the partition ring on a wire core is also increased; the arch is the heliciform and to same one side bending, can make the side of separating the ring link firmly with the wearing layer more tightly, has increased the anti bending deformation's of wearing layer ability, makes the wearing layer when receiving the bending force, more be difficult to by the rupture.
Through holes are formed between every two adjacent bulges, and the number of the through holes is at least two; the wear-resistant layers on the two sides of the partition ring are connected into a whole through the through hole; when cutting off the ring and receiving pulling force or bending force, be provided with the through-hole between two adjacent archs, the number of through-hole is two at least, thereby cuts off the wearing layer that the ring both sides and connect into a whole through the through-hole and increased the joint strength of two adjacent wearing layers, increase the tensile strength of wearing layer, make the wearing layer can share the axial force that more sinle silks received, make the sinle silk more difficult to be broken by the drawing.
The material of the isolating ring is engineering plastic; the material of the isolating ring is engineering plastic, so that the isolating ring is not conductive, and the probability of electric power and electric signal leakage of the wire core is reduced; tensile strength and tensile strength that can increase the wearing layer can share more sinle silks and receive external pulling force, make the sinle silk be more difficult to by the snap, can also share the bending force that the external world that more sinle silks received applyed, make the sinle silk be more difficult to the rupture.
The engineering plastic has excellent comprehensive performance, high rigidity, small creep, high mechanical strength, high heat and cold resistance, high electric insulating property, long term use in harsh chemical and physical environment, less environmental influence, high durability, high size stability, light weight, high wear resistance and other advantages.
The wear-resistant layer is internally provided with glue storage cavities along the axis direction, the number of the glue storage cavities is at least eight, the glue storage cavities are uniformly distributed along the circumferential direction of the wear-resistant layer, the glue storage cavities are stored with adhesive glue, and the cross section of each glue storage cavity is in a shape meeting the requirements
Wherein: a is 5-12 mm, b is 3-8 mm, x is the half-length axial length of the section of the glue storage cavity, and y is the half-length axial length of the section of the glue storage cavity; when the wearing layer is scratched by sharp rocks, the adhesive glue in the glue storage cavity flows out, external gravels and leaves are adhered to the scratched part of the wearing layer, and a protective layer is formed at the scratched part of the wearing layer, so that the scratched part of the wearing layer is automatically repaired, and the protective layer is formed at the part to enable the part to be more difficult to be scratched by the sharp rocks, and further the stable electric power or electric signals are transmitted to the wire core.
The invention also provides a bonding adhesive which comprises the following raw materials in parts by weight:
30-55 parts of bisphenol A epoxy resin which is one of main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance;
2-5 parts of phenolic epoxy resin, so that the crosslinking degree of a polymer of the adhesive is improved, and the mechanical property of the cured adhesive is improved;
10-15 parts of lubricant, which mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive;
1-4 parts of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering;
6-12 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive;
10-12 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material to improve the tensile strength of the solidified bonding glue;
2-5 parts of friction enhancer, which is mainly used for improving the surface roughness of the cable and polishing sharp objects;
2-3 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
The lubricant is dehydrated deoxidized shell powder or dehydrated deoxidized graphite powder;
the friction increasing agent is dehydrated deoxidized middlings or dehydrated deoxidized quartz powder.
The invention has the following beneficial effects:
1. the invention is mainly used for laying the cable in the mountain forest zone, and the isolating ring is embedded in the wear-resistant layer, so that when the cable is laid, sharp rocks on the ground surface scratch into a section of wear-resistant layer and then are embedded into the isolating ring in the wear-resistant layer, the sharp rocks can be resisted, and the probability that the sharp rocks continuously scratch the next section of wear-resistant layer is reduced.
2. According to the invention, the partition ring is provided with the bulge, after a sharp rock scratches a section of wear-resistant layer, because one end of the bulge close to the axis of the partition ring is higher than one end far away from the axis of the partition ring, the included angle alpha between the tangent line of the outer end point of the arc surface on the bulge and the end surface of the partition ring is 15-20 degrees, the bulge can enable the sharp rock to more easily push away the sharp rock from the wear-resistant layer after impacting the partition ring, thereby reducing the probability that the sharp rock further scratches the next section of wear-resistant layer; the raised logarithm is eight pairs at least, the arch is along cutting off the circumferential evenly distributed of ring, the arch is the heliciform and to same one side bending, protruding outside circular arc endpoint tangent line and cut off the contained angle beta between the ring radius for 30 ~ 45, can increase the protruding probability with sharp rock contact, further increased the protruding probability of pushing away sharp rock to reduced sharp rock and continued the probability of fish tail next section wearing layer, also increased the protective capacities of cutting off the ring to the sinle silk.
3. According to the invention, the adhesive in the adhesive storage cavity can flow out, external gravels and leaves are adhered to the position where the wear-resistant layer is scratched, and a protective layer is formed on the position where the wear-resistant layer is scratched, so that the scratched position of the wear-resistant layer is automatically repaired, and the protective layer is formed on the position to enable the position to be less prone to being scratched by sharp rocks, so that stable electric power or electric signals are further maintained to be transmitted by the wire core.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the blocker ring of the present invention;
FIG. 4 is a front view of the blocker ring of the present invention;
FIG. 5 is a left side view of the blocker ring of the present invention;
FIG. 6 is a scatter plot of a cable abrasion resistance test of the present invention;
FIG. 7 is a scatter plot of the ground friction experienced by the cable of the present invention;
in the figure: the rubber coating comprises a wire core 1, a wear-resistant layer 2, a rubber storage cavity 21, a partition ring 3, a protrusion 31 and a through hole 32.
Detailed Description
An environment-friendly abrasion-resistant cable according to the present invention will be described below with reference to fig. 1 to 7, in which the vertical and horizontal directions of the cable are all based on fig. 1.
As shown in fig. 1 to 5, the environment-friendly wear-resistant cable of the present invention includes a wire core 1, a wear-resistant layer 2 and a partition ring 3; the wire core 1 is positioned inside the wear-resistant layer 2, the wear-resistant layer 2 wraps the wire core 1, and the wear-resistant layer 2 is used for protecting the wire core 1 and preventing sharp rocks from scratching the wire core 1; the wear-resistant layer 2 is uniformly provided with partition rings 3, the axes of the partition rings 3 are collinear with the axis of the wear-resistant layer 2, the inner diameter of each partition ring 3 is larger than that of the wear-resistant layer 2, and the outer side surfaces of the partition rings 3 and the outer side surface of the wear-resistant layer 2 are coplanar; the isolating ring 3 is used for preventing the sharp rock from continuously scratching the next section of the wear-resistant layer 2 after scratching the next section of the wear-resistant layer 2; when laying the cable, the sharp rock in earth's surface is drawn into one section wearing layer 2 after, the wall ring 3 in embedding wearing layer 2 can keep out sharp rock to reduce the probability that sharp rock continues fish tail next section wearing layer 2.
The left side surface and the right side surface of the partition ring 3 are respectively provided with a bulge 31, one end of the bulge 31 close to the axis of the partition ring 3 is higher than one end far away from the axis of the partition ring 3, and the included angle alpha between the tangent of the outer end point of the arc surface on the bulge 31 and the end surface of the partition ring 3 is 15-20 degrees; after sharp rock is scratched into one section of wear layer 2, because the one end that arch 31 is close to the axis of isolating ring 3 is higher than the one end of keeping away from the axis of isolating ring 3, the contained angle alpha between the circular arc outside endpoint tangent line on arch 31 and the 3 terminal surfaces of isolating ring is 15 ~ 20, arch 31 can make sharp rock bump into after isolating ring 3, more easily push away sharp rock from wear layer 2 to the probability that sharp rock further fish tail next section wear layer 2 has been reduced.
The number of pairs of the bulges 31 is at least eight, and the bulges 31 are uniformly distributed along the circumferential direction of the partition ring 3; the bulge 31 is spiral and is bent towards the same side, and the included angle beta between the tangent line of the arc end point at the outer side of the bulge 31 and the radius of the partition ring 3 is 30-45 degrees; when the partition ring 3 pushes out the sharp rock scratched into the wear-resistant layer 2, the number of pairs of the protrusions 31 is at least eight, the protrusions 31 are uniformly distributed along the circumferential direction of the partition ring 3, the protrusions 31 are spiral and are bent towards the same side, an included angle beta between the tangent line of the arc end point at the outer side of each protrusion 31 and the radius of the partition ring 3 is 30-45 degrees, the probability that the protrusions 31 are in contact with the sharp rock can be increased, the probability that the sharp rock is pushed out by the protrusions 31 is further increased, the probability that the sharp rock continuously scratches the next section of wear-resistant layer 2 is reduced, and the protection capability of the partition ring 3 on the wire core 1 is also increased; the bulge 31 is spiral and is bent towards the same side, so that the side surface of the partition ring 3 is fixedly connected with the wear-resistant layer 2 more tightly, the bending deformation resistance of the wear-resistant layer 2 is improved, and the wear-resistant layer 2 is less prone to being broken when being subjected to bending force.
Through holes 32 are formed between every two adjacent protrusions 31, and the number of the through holes 32 is at least two; the wear-resistant layers 2 on the two sides of the isolating ring 3 are connected into a whole through the through hole 32; when cutting off ring 3 and receiving pulling force or bending force, be provided with through-hole 32 between two adjacent archs 31, the number of through-hole 32 is two at least, thereby cuts off wearing layer 2 of 3 both sides of ring and connects into a whole through-hole 32 and has increased the joint strength of two adjacent wearing layers 2, increases wearing layer 2's tensile strength, makes wearing layer 2 can share the axial force that more sinle silk 1 received, makes sinle silk 1 more be difficult to by the snapping.
The material of the isolating ring 3 is engineering plastic; the material of the isolating ring 3 is engineering plastic, so that the isolating ring 3 is not conductive, and the probability of electric power and electric signal leakage of the wire core 1 is reduced; tensile strength and tensile strength that can increase wearing layer 2 can share more sinle silk 1 and receive external pulling force, make sinle silk 1 more be difficult to be broken by the stretch-breaking, can also share the bending force that the external world that more sinle silk 1 received applys, make sinle silk 1 more be difficult to the rupture.
Be provided with along the axis direction in the wearing layer 2 and store up gluey chamber 21, the number of storing up gluey chamber 21 is eight at least, stores up gluey chamber 21 along 2 circumference evenly distributed of wearing layer, store up gluey intracavity and store up in gluey chamber 21 and have glued, store up the cross sectional shape in gluey chamber 21 for satisfying
Wherein: a is 5-12 mm, b is 3-8 mm, x is the half-length axial length of the section of the glue storage cavity 21, and y is the half-length axial length of the section of the glue storage cavity 21; when the wear-resistant layer 2 is scratched by sharp rocks, the adhesive glue in the glue storage cavity 21 flows out, external gravels and leaves are adhered to the scratched part of the wear-resistant layer 2, and a protective layer is formed at the scratched part of the wear-resistant layer 2, so that the scratched part of the wear-resistant layer 2 is automatically repaired, and the protective layer is formed at the part to enable the part to be more difficult to be scratched by the sharp rocks, so that the stable electric power or electric signals transmitted by the wire core 1 are further maintained.
Example 1: the adhesive comprises the following raw materials in parts by weight:
30 parts of bisphenol A epoxy resin which is one of main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance; 5 parts of phenolic epoxy resin, the crosslinking degree of a bonding adhesive polymer is improved, and the mechanical property of the cured bonding adhesive is improved; 10-15 parts of lubricant, which mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive; 3 parts of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering; 12 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive; 12 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material for improving the tensile strength of the solidified bonding glue; 25 parts of friction increasing agent, which is mainly used for improving the surface roughness of the cable and polishing sharp objects; 3 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
Example 2: the adhesive comprises the following raw materials in parts by weight:
55 parts of bisphenol A type epoxy resin which is one of main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance; 3.5 parts of phenolic epoxy resin, the crosslinking degree of the polymer of the adhesive is improved, and the mechanical property of the cured adhesive is improved; 15 parts of lubricant mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive; 4 parts of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering; 7 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive; 10 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material improves the tensile strength of the solidified bonding glue; 20 parts of friction increasing agent, which mainly improves the surface roughness of the cable and polishes sharp objects; 3 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
Example 3: the adhesive comprises the following raw materials in parts by weight:
47 parts of bisphenol A type epoxy resin which is one of main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance; 3 parts of phenolic epoxy resin, the crosslinking degree of a bonding adhesive polymer is improved, and the mechanical property of the cured bonding adhesive is improved; 10 parts of lubricant, which mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive; 1 part of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering; 10 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive; 10 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material improves the tensile strength of the solidified bonding glue; 22 parts of friction increasing agent, which mainly improves the surface roughness of the cable and polishes sharp objects; 2 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
Example 4: the adhesive comprises the following raw materials in parts by weight:
37 parts of bisphenol A type epoxy resin which is one of main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance; 3 parts of phenolic epoxy resin, the crosslinking degree of a bonding adhesive polymer is improved, and the mechanical property of the cured bonding adhesive is improved; 12 parts of lubricant, which mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive; 2 parts of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering; 8 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive; 11 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material improves the tensile strength of the solidified bonding glue; 23 parts of friction increasing agent, which is mainly used for improving the surface roughness of the cable and polishing sharp objects; 2 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
Example 5: the adhesive comprises the following raw materials in parts by weight:
43 parts of bisphenol A type epoxy resin which is one of the main components of the adhesive and is a matrix of the adhesive, and the cured adhesive has strong adhesive force, acid and alkali resistance, high mechanical strength, good electrical insulation and corrosion resistance; 2-5 parts of phenolic epoxy resin, so that the crosslinking degree of a polymer of the adhesive is improved, and the mechanical property of the cured adhesive is improved; 12 parts of lubricant, which mainly improves the lubricity, fire resistance and corrosion resistance of the adhesive; 2 parts of hydrophobic fumed silica, which mainly provides anti-sagging property for the adhesive and prevents the adhesive from layering; 8 parts of dicyandiamide curing agent, which is mainly used for improving the curing speed of the adhesive; 11 parts of dehydrated deoxidized glass fiber which is mainly used as a reinforcing material improves the tensile strength of the solidified bonding glue; 23 parts of friction increasing agent, which is mainly used for improving the surface roughness of the cable and polishing sharp objects; 2.5 parts of yellow or red pigment, which mainly changes the color of the adhesive glue.
Cable pulling experiment:
preparation of the experiment: the radius is 4 m's annular track, and annular track's width is 0.5m, has evenly laid stone and branch on the annular track, and the constant force tractor, the environment-friendly wear-resisting cable and the ordinary cable of same diameter each 2m, constant force tractor link to each other with the environment-friendly wear-resisting cable through a force sensor, and the constant force tractor links firmly with the ordinary cable through No. two force sensors, and experiment temperature control is at the normal atmospheric temperature.
The experimental steps are as follows: the environment-friendly wear-resistant cable is pulled by a constant-power tractor through a first tension sensor, a common cable is pulled by a second tension sensor to make circular motion around the annular track, the average speed of the motion is 1.1m/s, and the environment of manually laying the cable in mountain forest zones is simulated; meanwhile, 5000pa of downward pressure is uniformly applied to the upper surface of the environment-friendly wear-resistant cable and the upper surface of the common cable, and the situation that when the cable is laid in a mountain forest zone, the two ends of the cable section which is being laid are pulled downwards by other sections of cables is simulated; stopping for 5 minutes every 15 minutes of movement, and simulating the situation that when a pipeline is actually laid, a worker lays for a period of time, then the worker is tired and has a rest for a period of time, and then the laying is carried out; and stopping movement when the constant-power tractor moves for 15min, 35min, 55min, 75min and 95min respectively, recording scratches larger than 50mm as long scratches and scratches smaller than 50mm as short scratches after the surfaces of the environment-friendly wear-resistant cable and the common cable are cleaned, counting the number of the long scratches and the number of the short scratches on the surfaces of the environment-friendly wear-resistant cable and the common cable respectively, and reading the traction force change conditions of the environment-friendly wear-resistant cable and the common cable recorded by the tension sensor.
The experimental results are as follows:
TABLE 1
TABLE 2
And (4) experimental conclusion: according to the environment-friendly wear-resistant cable, the adhesive is released at the position where the wear-resistant layer is scratched in the adhesive storage cavity, outside gravels and leaves are adhered to the scratched position of the wear-resistant layer to form a protective layer, so that the damage rate of the surface of the cable is reduced, after the experiment is finished, the proportion of long scratches of the environment-friendly wear-resistant cable to the total scratches is 21%, the proportion of long scratches of the surface of a common cable to the total scratches is 35%, and the environment-friendly wear-resistant cable can be laid in a mountain forest zone and has fewer long scratches caused by the received sharp rocks; the environment-friendly wear-resistant cable is provided with the rubber storage cavity and the isolating ring, and the friction force between the cable and the mountain surface is hardly increased when the cable is laid, so that the pulling force applied to the cable by workers is hardly increased when the cable is laid in an actual mountain area, and the burden of the workers in laying the cable is hardly increased.
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 an environment-friendly wear-resisting cable which characterized in that: comprises a wire core (1), a wear-resistant layer (2) and a partition ring (3); the cable core (1) is positioned inside the wear-resistant layer (2), the wear-resistant layer (2) wraps the cable core (1), and the wear-resistant layer (2) is used for protecting the cable core (1) and preventing sharp rocks from scratching the cable core (1); the partition ring (3) is embedded into the wear-resistant layer (2), the axis of the partition ring (3) is collinear with the axis of the wear-resistant layer (2), the inner diameter of the partition ring (3) is larger than that of the wear-resistant layer (2), and the outer side surface of the partition ring (3) is coplanar with the outer side surface of the wear-resistant layer (2); the isolating ring (3) is used for preventing sharp rocks from continuously scratching the next section of the wear-resistant layer (2) after scratching one section of the wear-resistant layer (2);
the left side surface and the right side surface of the isolating ring (3) are respectively provided with a bulge (31), one end of the bulge (31) close to the axis of the isolating ring (3) is higher than one end of the bulge far away from the axis of the isolating ring (3), and the included angle alpha between the tangent of the outer end point of the arc surface on the bulge (31) and the end surface of the isolating ring (3) is 15-20 degrees; the number of pairs of the bulges (31) is at least eight, and the bulges (31) are uniformly distributed along the circumferential direction of the isolating ring (3); the bulge (31) is spiral and is bent towards the same side, and an included angle beta between the tangent of the arc end point at the outer side of the bulge (31) and the radius of the isolating ring (3) is 30-45 degrees; through holes (32) are formed between every two adjacent protrusions (31), and the number of the through holes (32) is at least two; the wear-resistant layers (2) on the two sides of the isolating ring (3) are connected into a whole through the through hole (32);
be provided with along the axis direction in wearing layer (2) and store up gluey chamber (21), the number that stores up gluey chamber (21) is eight at least, stores up gluey chamber (21) along wearing layer (2) circumference evenly distributed, store up gluey intracavity (21) of storage and store up and have the bonding glue, store up the oval of cross sectional shape for satisfying of gluey chamber (21), wherein: a is 5-12 mm, b is 3-8 mm, x is the half-length axial length of the section of the glue storage cavity (21), and y is the half-length axial length of the section of the glue storage cavity (21).
2. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the material of the isolating ring (3) is engineering plastics.
3. An adhesive used for the abrasion-resistant cable of claims 1 to 2, which comprises the following raw materials in parts by weight: 30-55 parts of bisphenol A epoxy resin, 2-5 parts of novolac epoxy resin, 10-15 parts of lubricant, 1-4 parts of hydrophobic fumed silica, 6-12 parts of dicyandiamide curing agent, 10-12 parts of dehydrated deoxidized glass fiber, 2-5 parts of friction enhancer and 2-3 parts of yellow or red pigment.
4. A glue as claimed in claim 3, characterised in that said lubricant is dehydrated deoxidized shell powder or dehydrated deoxidized graphite powder.
5. The bonding adhesive as claimed in claim 3, wherein said friction enhancer is dehydrated deoxidized middlings or dehydrated deoxidized quartz powder.
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| CN208889370U (en) * | 2018-09-25 | 2019-05-21 | 安徽华星电缆集团有限公司 | A kind of mining wear resistance damage signal cable |
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| US7402753B2 (en) * | 2005-01-12 | 2008-07-22 | Schlumberger Technology Corporation | Enhanced electrical cables |
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| JP2014032793A (en) * | 2012-08-02 | 2014-02-20 | Yazaki Corp | Method for manufacturing a flat cable and flat cable |
| CN106232692A (en) * | 2014-04-15 | 2016-12-14 | 三菱瓦斯化学株式会社 | Fiber reinforced composite material |
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Effective date of registration: 20200804 Address after: The new village of Shigezhuang town of Langfang city in 065800 Hebei County of Wen'an Province Applicant after: Hebei Zhenghai Cable Co., Ltd Address before: 241200 Nanshan Formation No. 6, Zaoyuan Village, Fanchang County, Wuhu City, Anhui Province Applicant before: Wang Yuanzhong |
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