CN110591190A - An environment-friendly wear-resistant cable - Google Patents

Abstract

The invention belongs to the technical field of cables, and particularly relates to an environment-friendly wear-resistant cable which comprises a main conductor and an auxiliary conductor, wherein the surface of the main conductor is wrapped with a first insulating layer, the surface of the auxiliary conductor is wrapped with a second insulating layer, and adjacent auxiliary conductors are arranged in parallel and are connected into a whole through the second insulating layer to form a flat conductor group; a concave part is arranged at one edge of the first insulating layer and is positioned at the inner side of the first insulating layer; the outer side surface of the second insulating layer on one side surface of the lead group is provided with a convex part, and the convex part is matched with the concave part of the first insulating layer; the lead group is annularly wound outside the main conductor and is fixed by glue; the outer side of the fixed lead group is wrapped with a plurality of layers of wear-resistant waterproof cloth and is fixed by gluing; the waterproof cloth is wrapped with a wear-resistant rubber layer; according to the invention, the cable with wear resistance and tear resistance can be produced by the production method of the environment-friendly wear-resistant cable, and meanwhile, the cable provided by the invention has the advantage that the problem that the cable cannot be distinguished when the number of the cable conductors is large is solved.

Description

An environment-friendly wear-resistant cable

technical field

The invention belongs to the technical field of cables, in particular to an environment-friendly wear-resistant cable.

Background technique

With the development of society, people pay more and more attention to environmental protection. In order to improve the environmental protection performance of cables, in general, some inorganic flame retardant materials are added to the polymer materials used for cable insulation and sheathing, such as adding hydrogen Aluminum oxide, magnesium hydroxide and other flame retardants are used to improve the flame retardant performance of the material, but the addition of these fillers is limited. Adding these fillers will reduce the electrical and mechanical properties of the cable. If too much is added, the electrical properties of the cable will be damaged. Performance and mechanical properties just can't meet the requirement of use. Although these inorganic filling materials are added, the cable will still burn and emit harmful substances under the condition of flames. Therefore, it should be avoided that the cable is burned to produce pollutants. A little more flame retardant can be added to the cable sheath material and filling material. , but for the outer insulating material of the cable, in order to ensure the electrical performance, the flame retardant can only be added less, but even so, the wear resistance, anti-aging performance and antistatic performance of the outer insulating material of the cable still need to be improved, and the preparation process of the cable is also difficult. There is still room for improvement.

At the same time, during the use of cables, due to the large number of conductors required, it is often necessary to arrange multiple cables in parallel to achieve the required use. However, it is difficult to arrange multiple cables in parallel, and most of the cables are similar in color. It allows people to distinguish the connection relationship between the corresponding cable and other lines. On the other hand, some cables are arranged with more than ten or twenty conductors, and it is difficult to distinguish only by color. Therefore, how to distinguish the conductors in the cable? Body is an important issue. In addition, although the outermost sheath of most cables has wear resistance, the general wear resistance is still poor, especially when the cable is in a gravel or easily scratched environment. When used in regional areas, the outermost sheath of the cable is still easily cut by sharp gravel, and the cut gets deeper until the gravel enters the inner layer of the cable. Therefore, the safety protection and wear resistance of the cable need to be carried seriously. consider.

Contents of the invention

In order to make up for the deficiencies in the prior art, the invention proposes an environment-friendly wear-resistant cable. The invention can solve the problems of poor wear resistance, poor protection, and easy aging of the cable skin, and when the number of conductors in the cable is large, different conductors indistinguishable problem.

The technical solution adopted by the present invention to solve the technical problem is: an environment-friendly wear-resistant cable, including a wear-resistant rubber layer, and the materials used for the wear-resistant rubber layer include by weight:

Hydrogenated nitrile rubber 40-50 parts, polyvinyl chloride resin 20-30 parts, natural rubber 10-18 parts, ethylene-octene copolymer 12-20 parts, silane coupling agent 5-13 parts, modified PP 5- 10 parts, 0.5-1 parts of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide 10-20 parts of carbon microspheres, 5-10 parts of cast stone powder, 5-15 parts of nano-carbon black, 15-20 parts of nano-clay, 1-2 parts of CPE special stabilizer, 5- 7 parts, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid, 1-5 parts of pressure-sensitive microcapsules; 1-5 parts of nano-silica particles.

The surface of the wear-resistant rubber layer is coated with a reversible thermotropic material, and the temperature sensing range of the reversible thermotropic material is 60°C to 130°C. When working, by infiltrating or applying a variety of reversible thermotropic materials with a temperature range of 60°C to 130°C on the surface of the wear-resistant rubber layer, it can make the surface of the environmentally friendly wear-resistant cable reach the temperature range when the heating temperature reaches the temperature range. The surface color of the wear-resistant rubber layer changes, which enables people to judge the temperature of the environmentally friendly wear-resistant cable through visual observation, and then artificially cool down the environmentally friendly wear-resistant cable. ETCD polydiacetylene changes color at 115°C, CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O changes color at 75°, the real-time temperature of the environmentally friendly wear-resistant cable can be judged according to the color change of the outer surface of the environmentally friendly wear-resistant cable at different stages, and then artificially The environment-friendly wear-resistant cable is used for cooling protection; among them, the reaction formula for CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O to change color at 75° is:

The pressure-sensitive microcapsules contain a modified PP material whose Izod notched impact strength is greater than or equal to 120 J/m. The modified PP material with the grade KHPP-T223 can effectively improve the Izod notched impact strength and elongation at break of the wear-resistant rubber layer as a whole.

The material used for the wear-resistant rubber layer also includes 1-2 parts of calcium zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine by weight.

The material used for the wear-resistant rubber layer specifically includes the following process steps for production:

Step 1: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;

Step 2: Add silane coupling agent, zinc oxide, magnesium oxide, magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano-carbon black, nano-clay, CPE special stabilizer, phenylene Trioctyl triacid, paraffin, stearic acid, nano-silica particles, pressure-sensitive microcapsules, calcium zinc stabilizer and dodecyl dimethyl betaine are mixed, and the speed of the internal mixer is 42-50 revolutions per minute, the temperature of the initial feeding internal mixer is 42°C-50°C, when the temperature is raised at a speed of 1°C/min to 62°C-65°C, the melted modified PP material is added, and then the internal mixer speed is 60-70 revolutions per minute, heat up at a speed of 5°C/min to 75°C-80°C, continue stirring for 1-2min, vacuumize, and maintain a negative pressure of 0.5-1MPa before releasing the film;

Step 3: Place the film in a film cooler to cool below 40°C;

Step 4: Put the cooled film into the vulcanizer, add neoprene and sulfur to mix evenly, the vulcanization time is 5-6min, the vulcanization temperature is 120°C-135°C, take out the film, cool it, and let it stand for 25-30h. High-strength wear-resistant rubber materials can be obtained;

Step 5: Form the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer, and coat a variety of reversible thermochromic materials on the surface. The types of discoloration of each material are different, and the temperature range of the reversible thermochromic material is 60 ℃～130℃; ETCD polydiacetylene changes color at 115℃, CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O changes color at 75°;

An environment-friendly wear-resistant cable, which also includes a main conductor whose surface is covered with a No. 1 insulating layer, and a secondary conductor whose surface is covered with a No. 2 insulating layer. Adjacent sub-conductors are arranged side by side and connected as a whole through the No. 2 insulating layer And form a flat wire group; the cross-section of the No. 1 insulating layer is a hollow ring shape, and an edge of the No. 1 insulating layer is provided with a recess for press-fit connection, and the recess is located inside the No. 1 insulating layer; The outer surface of the No. 2 insulation layer on one side of the wire group is provided with a protrusion for press-fit connection, and the protrusion is adapted to the concave part of the No. 1 insulation layer; the wire group is wrapped around the main conductor and passed through glued and solidified; the outside of the solidified wire group is wrapped with a multi-layer wear-resistant waterproof cloth and solidified by gluing; the wear-resistant rubber layer is used to wrap the solidified waterproof cloth; the leading wire wrapped with a No. 1 insulating layer The body diameter is greater than the thickness of the wire group; isolation layers and shielding layers are sequentially arranged between the main conductor and the No. 1 insulating layer, and between the secondary conductor and the No. 2 insulating layer. When working, the outermost wear-resistant rubber layer is responsible for wear-resistant protection. The needs of power supply, communication, and grounding wires are realized through the main conductor and secondary conductor. The wear-resistant rubber layer can be wrapped with a cable extruder and the surface. The main conductor, wire group and wear-resistant waterproof cloth of the No. The parts are completely wrapped, and then the wear-resistant rubber layer is formed into a ring shape by softening the side of the wear-resistant rubber layer with a red-hot metal sheet; among them, the main conductor wrapped with the No. 1 insulating layer, and the secondary conductor wrapped with the No. 2 insulating layer Any combination can be made according to the number of 1:n. The sub-conductors contained in the flat wire group can be made into a wire group with two sub-conductors, a wire group with three sub-conductors, and a wire with four sub-conductors according to actual needs. Groups and more than four sets of sub-conductor wire groups are then formed by wrapping and bonding, which is beneficial to reduce the width of the overall environmentally friendly wear-resistant cable and facilitate the overall wiring and installation of the environmentally friendly wear-resistant cable. At the same time, when it is necessary to contain ten When the above-mentioned secondary conductors are environmentally friendly and wear-resistant cables, they are carried out in the form of wire group winding, which is not easy to cause confusion; the glue involved in this case can be waterproof and aging-resistant QIS-5708 silicone adhesive metal plastic glue, which can withstand high temperature 300 ℃; You can also choose CL-24/26AB glue, modified epoxy structural glue with high temperature resistance above 120°C, or other glues selected according to actual needs; when the wear-resistant rubber layer of the environment-friendly wear-resistant cable is seriously worn, it can be passed to the environment-friendly wear-resistant cable. Wear-resistant cable until the glue melts to remove the wear-resistant rubber layer and replace it with a new wear-resistant rubber layer. When the number of secondary conductors needs to be added to the environmentally friendly wear-resistant cable, it can pass through the second concave and convex parts on the wire group according to actual needs. Rewinding is achieved by connecting and supplementing, so that the main conductor and sub-conductor of the environmentally friendly wear-resistant cable can be easily replaced when they need to be replaced, so that the environmentally friendly wear-resistant cable will not be scrapped as a whole, thus realizing the environment-friendly wear-resistant cable. The environmental protection of the cable, at the same time, the wear-resistant rubber layer has the effect of wear resistance and tear resistance, thereby improving the overall environmental protection and wear resistance of the environment-friendly wear-resistant cable; again, if it is necessary to facilitate the wire group and the package, there is a No. 1 insulation The main conductor of the first layer is more convenient to disassemble, and it can also make the wire group and the main conductor wrapped with the first insulating layer not glued when wrapping, and can be selected according to actual needs;

The outer surface of the wear-resistant rubber layer is sequentially provided with slip rings at intervals; the slip ring includes two semi-circular blocks that can be inserted into each other, and the edges of both ends of the semi-circular blocks are tangent to the outer surface of the wear-resistant rubber layer; and the two semi-circular blocks The inner surface is provided with an elastic sheet; the material of the elastic sheet is polyurethane rubber or polyethylene fiber material; the inner diameter of the slip ring with the elastic sheet is matched with the outer diameter of the wear-resistant rubber layer of the environment-friendly wear-resistant cable; , snap the two semicircular blocks to the outer surface of the wear-resistant rubber layer of the environmentally friendly wear-resistant cable and press and fasten each other. If necessary, the glue is firm; The surface is fixed and strengthened. On the other hand, it can block the environmentally friendly wear-resistant cable when it is dragged and is torn by sharp objects, so as to avoid the continuous tearing of the environmentally friendly wear-resistant cable. On the other hand, due to the slip ring The outer diameter is larger than the outer diameter of the wear-resistant rubber layer. When dragging the environmentally friendly wear-resistant cable, the slip ring can reduce the abrasion of the wear-resistant rubber layer and the ground, which is beneficial to improve the service life of the environmentally friendly wear-resistant cable. Edges at both ends are tangent to the outer surface of the wear-resistant rubber layer, which enables the environment-friendly wear-resistant cable to avoid obstacles, thereby making it easier for the environment-friendly wear-resistant cable to be dragged and wound.

The outer surface of the No. 2 insulating layer on the other side of the wire group is provided with a second recess for press-and-fit connection, and the protrusion on one wire group can be connected to its second recess or the second wire group on the other wire group. The two recesses are connected by pressing and buckling. During operation, by setting a second concave part for press-fit connection on one side of the wire group, and setting a convex part for press-fit connection on the other side of the wire group, the combination of multiple wire groups can be realized. When the use requirements change, it can be replaced, increased or decreased the number of wire groups and the number of sub-conductors, which is convenient for the wrapping of the wire groups and reduces the overall width of the environmentally friendly wear-resistant cable, which is convenient for the overall wiring and installation of the environmentally friendly wear-resistant cable. It is especially suitable for cables with many sub-conductors, especially cables requiring five or more sub-conductors. It is carried out in the form of wire group winding, and the outer surfaces of multiple sub-conductors are distinguished by different colors. Furthermore, it is difficult for the plurality of secondary conductors to be confused and knotted.

There are at least two groups of secondary conductors in the wire group, and each group of secondary conductors is separated by a No. 2 insulating layer. When working, the main conductor and the secondary conductor can use composite hinge conductors, bundle hinge conductors, ordinary hinge conductors, special-shaped conductors, fan-shaped, tile-shaped, etc., single metal wire conductors, and each set of secondary conductors is insulated by No. 2 Layers are separated to form multiple secondary conductors.

The wire group also includes a rectangular rubber block with a right-angled triangle cross section; the length of the rubber block along the axial direction of the secondary conductor is the same as the length of the wire group, and one of the right-angled sides of the rubber block is equal to the thickness of the wire group, and the rubber block The right-angled side is provided with a second convex part with the same structure as the wire group, and the rubber block and the wire group are wrapped on the outside of the main conductor so that the main conductor, the wire group and the rubber block wrapped with a No. 1 insulating layer are wrapped and formed. tends to be round.

The production and preparation of materials used in the wear-resistant rubber layer are mainly hydrogenated nitrile rubber, supplemented by polyvinyl chloride resin and natural rubber, so that the product has high wear resistance and tear resistance, and has good adhesion And aging resistance, among them, the tensile strength of hydrogenated nitrile rubber is above 30MPa, the tensile strength of partially improved hydrogenated nitrile rubber is above 60MPa, and the service life is 10,000 hours below 120°C. Therefore, it can be used as a whole The wear-resistant rubber layer has basic strength; polyvinyl chloride resin has enhanced heat resistance, toughness and ductility of the wear-resistant rubber layer, so that the main characteristics of the wear-resistant rubber layer are determined; ethylene-octene copolymer is used as a toughening agent to improve the toughness of the product, improve the wear resistance and tear resistance of the product; neoprene as a vulcanization accelerator, zinc oxide as an activator, and sulfur as a vulcanizing agent; the three are combined with vulcanized hydrogenated nitrile rubber, polychlorinated Vinyl resin and natural rubber make the vulcanized rubber not only have better anti-scorch performance and storage safety, but also ensure faster vulcanization speed and flat vulcanization, and have better comprehensive physical and mechanical properties, and also improve the durability Abrasiveness, aging resistance and compression set performance; adding magnesium oxide, zinc oxide, antimony trioxide, carbon microspheres, nano-carbon black, nano-clay, cast stone powder, modified kaolin, and nano-silica particles as supplements Strengthening agent, supplemented by stearic acid, trioctyl trimellitate and paraffin, improves the compatibility of the main material and reinforcing agent, improves the wear resistance and tear resistance of the product, and also improves the strength and hardness of the product , which reduces the cost of the product; and magnesium oxide, antimony trioxide and magnesium hydroxide inorganic flame retardants form the flame retardant system of the product, which greatly improves the heat resistance and flame retardant performance of the product; by adding pressure-sensitive microcapsules enhance self-resilience;

A production method of an environment-friendly wear-resistant cable, which is used to produce the above-mentioned environment-friendly wear-resistant cable, comprising the following production steps:

S1: Connect the main conductor wrapped with a No. 1 insulating layer and the flat wire group through the concave and convex parts;

If the number of sub-conductors in the wire group is insufficient, the concave part on the wire group that has been connected to the main conductor is pressed and connected with the convex part on the other wire group to achieve the required number of sub-conductors, and according to actual needs, Choose whether to press and snap-fit the rubber block with the convex part on the concave part of the lead wire set at the end;

S2: After step S1 is completed, apply glue to the side of the flat wire group in contact with the No. 1 insulating layer, and wrap the glued wire group tightly on the outer surface of the main body wrapped with the No. 1 insulating layer and glue it to solid;

S3: After step S2 is completed, apply glue to the outer surface of the solidified wire group and the surface of the wear-resistant waterproof cloth that will be bonded to the outer surface of the wire group, and wrap the wear-resistant waterproof cloth on the outer surface of the wire group. The number of layers is at least two or more;

S4: After step S3 is completed, wrapping the wear-resistant rubber layer on the solidified waterproof cloth or wrapping the wear-resistant rubber layer by molding;

The glue in the above steps can choose QIS-5708 silicone adhesive metal plastic glue, high temperature resistance 300 ℃; also can choose CL-24/26AB glue, modified epoxy structural glue with high temperature resistance above 120 ℃ or other according to actual needs glue.

The beneficial effects of the present invention are as follows:

1. The present invention can produce a wear-resistant rubber layer with wear resistance and tear resistance by changing the composition ratio and production method of the wear-resistant rubber layer material of the environmentally friendly wear-resistant cable, which can fully protect the environment-friendly wear-resistant cable. The inside of the wear-resistant cable is protected. At the same time, by adding a variety of additives in the wear-resistant rubber layer, the structure of the wear-resistant rubber layer can be made more stable, heat resistance, Izod notched impact strength, combustion resistance, antistatic ability, antibacterial ability have significantly improved.

2. The present invention can enhance the fusion of various materials and materials by mixing and granulating some materials of the wear-resistant rubber layer and banburying, and at the same time, by vacuuming the interior of the banbury mixer, the oxidation of the mixed materials can be reduced. And the generation of bubbles, wherein, through neoprene as a vulcanization accelerator, zinc oxide as an activator, sulfur as a vulcanizing agent, the three are combined with vulcanized hydrogenated nitrile rubber, polyvinyl chloride resin and natural rubber to make the resulting vulcanization The rubber not only has better anti-scorch performance and storage safety, but also can ensure faster vulcanization speed and flat vulcanization, and also improves the wear resistance, aging resistance and compression set performance of the wear-resistant rubber layer as a whole. Self-healing ability for scratches on the surface of the wear-resistant rubber layer.

3. By coating the surface of the wear-resistant rubber layer with a reversible thermotropic material, the present invention can make the surface of the environment-friendly wear-resistant cable change in color when the temperature rises to a high level, and can be discovered by people in time to cool down, effectively protecting the cable , which is conducive to the improvement of the service life of the cable.

4. The present invention sets the slip ring formed by two semicircular blocks. On the one hand, the outer surface of the environment-friendly wear-resistant cable can be fixed and firmed; to prevent the environment-friendly wear-resistant cable from being torn continuously; because the outer diameter of the slip ring is larger than that of the wear-resistant rubber layer, the slip ring can reduce the contact between the wear-resistant rubber layer and the wear-resistant rubber layer when dragging the environmentally friendly wear-resistant cable The wear condition of the ground is conducive to improving the service life of the environmentally friendly wear-resistant cable.

5. In the environment-friendly wear-resistant cable of the present invention, a large number of secondary conductors in the cable are wrapped with the second insulating layer to form a wire group, and the wire group is wound on the main conductor, so that a large number of secondary conductors can be arranged in sequence. It is not messy, avoiding the problem that it is difficult to distinguish the conductors and make the connection when the number of conductors in the cable is large.

6. Through the research on various performances of cables, it provides more convenience for the service life of cables, product upgrades, and later maintenance.

Description of drawings

Fig. 1 is a curve diagram of cable electric heating accelerated aging experiment in the present invention;

Fig. 2 is a schematic diagram of the overall structure of the environment-friendly wear-resistant cable of the present invention;

Fig. 3 is about one of the embodiments of the A-A sectional view in Fig. 2;

Fig. 4 is another embodiment about the A-A sectional view in Fig. 3;

Fig. 5 is a schematic diagram of the structure of the main conductor whose middle surface is wrapped with a No. 1 insulating layer in the present invention;

Fig. 6 is a schematic structural view of a secondary conductor whose middle surface is wrapped with a No. 2 insulating layer of the present invention;

Fig. 7 is a structural schematic diagram of the middle slip ring of the present invention;

In the figure: main conductor 1, No. 1 insulation layer 11, wire group 2, No. 2 insulation layer 22, secondary conductor 21, No. 2 insulation layer 22, wire group 2, waterproof cloth 3, wear-resistant rubber layer 4, slip ring 5 , semicircle block 51, rubber block 23.

Detailed ways

An environment-friendly wear-resistant cable of the present invention will be described as follows using FIGS. 1 to 7 .

As shown in Figures 1 to 7, an environmentally friendly wear-resistant cable according to the present invention includes a wear-resistant rubber layer 4, and the materials used for the wear-resistant rubber layer 4 include by weight:

40-50 parts of hydrogenated nitrile rubber, 20-30 parts of polyvinyl chloride resin, 10-18 parts of natural rubber, 12-20 parts of ethylene-octene copolymer, 5-10 parts of modified PP, 5-10 parts of silane coupling agent 13 parts, 0.5-1 part of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide 10-20 parts of carbon microspheres, 5-10 parts of cast stone powder, 5-15 parts of nano-carbon black, 15-20 parts of nano-clay, 1-2 parts of CPE special stabilizer, 5- 7 parts, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid, 1-5 parts of pressure-sensitive microcapsules; 1-5 parts of nano-silica particles.

The surface of the wear-resistant rubber layer 4 is coated with a reversible thermotropic material, and the temperature sensing range of the reversible thermotropic material is 60°C to 130°C. When working, by infiltrating or coating the reversible thermotropic material with a temperature range of 60°C to 130°C on the surface of the wear-resistant rubber layer 4, it can be generated when the surface of the environmentally friendly wear-resistant cable is heated to the temperature range, thereby making the wear-resistant The color of the surface of the grinding rubber layer 4 changes, so that people can judge the temperature of the environment-friendly wear-resistant cable through naked eyes, and then can artificially cool down the environment-friendly wear-resistant cable. ETCD polydiacetylene changes color at 115°C, CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O changes color at 75°, the real-time temperature of the environmentally friendly wear-resistant cable can be judged according to the color change of the outer surface of the environmentally friendly wear-resistant cable at different stages, and then artificially The environment-friendly wear-resistant cable is used for cooling protection; among them, the reaction formula for CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O to change color at 75° is:

The pressure-sensitive microcapsules contain a modified PP material whose Izod notched impact strength is greater than or equal to 120 J/m. The modified PP material with the grade KHPP-T223 can effectively improve the Izod notched impact strength and elongation at break of the wear-resistant rubber layer 4 as a whole.

The material used for the wear-resistant rubber layer 4 also includes 1-2 parts of calcium-zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine by weight.

Concrete embodiments about wear-resistant rubber layer 4 proportioning and production process steps are as follows:

Embodiment 1, the materials used for the wear-resistant rubber layer 4 include by weight:

40 parts of hydrogenated nitrile rubber, 20 parts of polyvinyl chloride resin, 10 parts of natural rubber, 12 parts of ethylene-octene copolymer, 5 parts of silane coupling agent, 5 parts of modified PP, 0.5 parts of neoprene, 1 part of sulfur , 2 parts of zinc oxide, 2 parts of magnesium oxide, 2.5 parts of magnesium hydroxide inorganic flame retardant, 1 part of antimony trioxide, 10 parts of carbon microspheres, 5 parts of cast stone powder, 5 parts of nano-carbon black, 15 parts of nano-clay, 1 part of CPE special stabilizer, 5 parts of trioctyl trimellitate, 0.5 parts of paraffin, 1.5 parts of stearic acid, 1 part of pressure-sensitive microcapsules, 1 part of calcium zinc stabilizer, dodecyl dimethyl beet 2 parts of alkali, 1 part of nano silicon dioxide particles.

The materials used for the wear-resistant rubber layer 4 specifically include the following process steps for production:

Step 1: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;

Step 2: Add silane coupling agent, zinc oxide, magnesium oxide, magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano-carbon black, nano-clay, CPE special stabilizer, phenylene Trioctyl triacid, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, calcium zinc stabilizer and dodecyl dimethyl betaine are mixed, and the internal mixer speed is 42 rpm Minutes, the temperature of the internal mixer for initial feeding is 42°C, and when the temperature is raised to 62°C at a speed of 1°C/min, the melted modified PP material is added, and then the speed of the internal mixer is set to 60 rpm, and the temperature is increased at 5°C Heat up to 75°C at a speed of 1/min, continue to stir for 1min, vacuumize, and maintain a negative pressure of 0.5MPa before releasing the tablet;

Step 3: Place the film in a film cooler to cool below 40°C;

Step 4: Put the cooled film into the vulcanizer, add neoprene and sulfur to mix evenly, the vulcanization time is 5min, the vulcanization temperature is 120°C, take out the film, cool it, and let it stand for 25 hours to get high-strength wear-resistant rubber material;

Step 5: Form the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coat a variety of reversible thermochromic materials on the surface. The types of discoloration of each material are different, and the temperature range of the reversible thermochromic material is 60°C～120°C; ETCD polydiacetylene changes color at 115°C, and CoCl ₂ 2C ₆ H ₁₂ 10H ₂ O changes color at 75°;

Embodiment 2, the materials used for the wear-resistant rubber layer 4 include by weight:

45 parts of hydrogenated nitrile rubber, 25 parts of polyvinyl chloride resin, 14 parts of natural rubber, 16 parts of ethylene-octene copolymer, 9 parts of silane coupling agent, 8 parts of modified PP, 0.8 parts of neoprene, 1.5 parts of sulfur , 3.5 parts of zinc oxide, 3 parts of magnesium oxide, 3 parts of magnesium hydroxide inorganic flame retardant, 1.5 parts of antimony trioxide, 15 parts of carbon microspheres, 7.5 parts of cast stone powder, 10 parts of nano-carbon black, 17.5 parts of nano-clay, 1.5 parts of CPE special stabilizer, 6 parts of trioctyl trimellitate, 1 part of paraffin, 2 parts of stearic acid, 2.5 parts of pressure-sensitive microcapsules, 1.5 parts of calcium zinc stabilizer, dodecyl dimethyl beet 2.5 parts of alkali, 2.5 parts of nano silicon dioxide particles;

The materials used for the wear-resistant rubber layer 4 specifically include the following process steps for production:

Step 1: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;

Step 2: Add silane coupling agent, zinc oxide, magnesium oxide, magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano-carbon black, nano-clay, CPE special stabilizer, phenylene Trioctyl triacid, paraffin, stearic acid, nano-silica particles, pressure-sensitive microcapsules, calcium-zinc stabilizer, and dodecyl dimethyl betaine are mixed, and the mixer speed is 45 rpm minutes, the temperature of the internal mixer for initial feeding is 45°C, and when the temperature is raised at a rate of 1°C/min to 63°C, the melted modified PP material is added, and the speed of the internal mixer is set at 65 rpm, and the temperature is increased at 5°C Raise the temperature to 78°C at a speed of 1/min, continue stirring for 1.5min, vacuumize, and maintain a negative pressure of 0.8MPa before releasing the tablet;

Step 3: Place the film in a film cooler to cool below 40°C;

Step 4: Put the cooled film into the vulcanizer, add neoprene and sulfur and mix evenly, the vulcanization time is 5.5min, the vulcanization temperature is 130°C, take out the film, cool it, and let it stand for 28 hours to get high-strength resistant Grinding rubber materials;

Step 5: Form the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coat a variety of reversible thermochromic materials on the surface. The types of discoloration of each material are different, and the temperature range of the reversible thermochromic material is 79℃～100℃;

Embodiment 3, the materials used for the wear-resistant rubber layer 4 include by weight:

50 parts of hydrogenated nitrile rubber, 30 parts of polyvinyl chloride resin, 18 parts of natural rubber, 20 parts of ethylene-octene copolymer, 13 parts of silane coupling agent, 10 parts of modified PP, 1 part of neoprene, 2 parts of sulfur , 5 parts of zinc oxide, 4 parts of magnesium oxide, 4 parts of magnesium hydroxide inorganic flame retardant, 2 parts of antimony trioxide, 20 parts of carbon microspheres, 10 parts of cast stone powder, 15 parts of nano-carbon black, 20 parts of nano-clay, 2 parts of CPE special stabilizer, 7 parts of trioctyl trimellitate, 1.5 parts of paraffin, 3 parts of stearic acid, 5 parts of pressure-sensitive microcapsules, 2 parts of calcium zinc stabilizer, dodecyl dimethyl beet 3 parts of alkali, 5 parts of nano silicon dioxide particles;

The materials used for the wear-resistant rubber layer 4 specifically include the following process steps for production:

Step 1: blending and granulating hydrogenated nitrile rubber, polyvinyl chloride resin, natural rubber and ethylene-octene copolymer;

Step 2: Add silane coupling agent, zinc oxide, magnesium oxide, magnesium hydroxide inorganic flame retardant, antimony trioxide, carbon microspheres, cast stone powder, nano-carbon black, nano-clay, CPE special stabilizer, phenylene Trioctyl triacid, paraffin, stearic acid, nano silicon dioxide particles, pressure-sensitive microcapsules, calcium zinc stabilizer, and dodecyl dimethyl betaine are mixed, and the speed of internal mixer is 50 rpm Minutes, the temperature of the internal mixer for initial feeding is 50°C, and when the temperature is raised to 65°C at a speed of 1°C/min, the melted modified PP material is added, and the speed of the internal mixer is set to 70 rpm, and the temperature is increased at 5°C Raise the temperature to 80°C at a speed of 1/min, continue to stir for 2 minutes, vacuumize, and maintain a negative pressure of 1MPa before releasing the film;

Step 3: Place the film in a film cooler to cool below 40°C;

Step 4: Put the cooled film into the vulcanizer, add neoprene and sulfur and mix evenly, the vulcanization time is 6 minutes, the vulcanization temperature is 135°C, take out the film, cool, and stand for 30 hours to obtain high-strength wear-resistant rubber material;

Step 5: Form the obtained high-strength wear-resistant rubber material into a wear-resistant rubber layer 4, and coat a variety of reversible thermochromic materials on the surface. The types of discoloration of each material are different, and the temperature range of the reversible thermochromic material is 99℃～130℃;

Step 6: After coating the reversible thermotropic material on the wear-resistant rubber material, soak the wear-resistant rubber material in 5210 matt environment-friendly lotion, and heat it to 45°C to 50°C for 10 minutes to Improve the stain resistance of wear-resistant rubber materials;

The production and preparation of the materials used in the wear-resistant rubber layer 4 are mainly hydrogenated nitrile rubber, supplemented by polyvinyl chloride resin and natural rubber, so that the product has high wear resistance and tear resistance, and has good bonding properties and aging resistance, among them, the tensile strength of hydrogenated nitrile rubber is above 30MPa, the tensile strength of partially improved hydrogenated nitrile rubber is above 60MPa, and the service life is 10,000 hours below 120°C. Therefore, it can be used as a whole The wear-resistant rubber layer 4 has basic strength; the polyvinyl chloride resin has enhanced heat resistance, toughness and ductility of the wear-resistant rubber layer 4, so that the main characteristics of the wear-resistant rubber layer 4 are determined; ethylene-octene copolymerization As a toughening agent, improve the toughness of the product, improve the wear resistance and tear strength of the product; neoprene as a vulcanization accelerator, zinc oxide as an activator, and sulfur as a vulcanizing agent; the three are combined with vulcanized hydrogenated nitrile Rubber, polyvinyl chloride resin and natural rubber make the vulcanized rubber not only have better anti-scorch performance and storage safety, but also ensure faster vulcanization speed and flat vulcanization, and have better comprehensive physical and mechanical properties. It also improves wear resistance, aging resistance and compression set performance; adding magnesium oxide, zinc oxide, antimony trioxide, carbon microspheres, nano-carbon black, nano-clay, cast stone powder, modified kaolin, nano-dioxide Silicon particles are used as a reinforcing agent, supplemented with stearic acid, trioctyl trimellitate and paraffin wax, which improves the compatibility between the main material and the reinforcing agent, improves the wear resistance, tear resistance and stability of the product, and also Improve the strength and hardness of the product and reduce the cost of the product; while modified PP is mainly used to improve the Izod notched impact strength, Izod notched impact strength>=40J/m, while magnesium oxide, antimony trioxide and magnesium hydroxide have inorganic resistance The flame retardant system of the product is combined with the flame retardant system, which greatly improves the heat resistance and flame retardant performance of the product; the self-recovery force is enhanced by adding pressure-sensitive microcapsules; the calcium-zinc stabilizer is an environmentally friendly stabilizer, which can improve the wear-resistant rubber Thermal stability, light stability, transparency and tinting strength of layer 4; dodecyl dimethyl betaine has antistatic, antibacterial and disinfection properties, and can improve the overall performance of wear-resistant rubber layer 4;

An environment-friendly wear-resistant cable, which also includes a main conductor 1 with a No. 1 insulating layer 11 on its surface, and a secondary conductor 21 with a No. 2 insulating layer 22 on its surface. The insulating layers 22 are connected together to form a flat wire group 2; the cross-section of the No. 1 insulating layer 11 is a hollow ring shape, and an edge of the No. 1 insulating layer 11 is provided with a recess for press-fit connection, and the recess It is located inside the No. 1 insulating layer 11; the outer side of the No. 2 insulating layer 22 on one side of the wire group 2 is provided with a convex part for press-fit connection, and the convex part is adapted to the concave part of the No. 1 insulating layer 11; The wire group 2 is wrapped around the main conductor 1 and solidified by gluing; the outer side of the wire group 2 after solidification is wrapped with a multi-layer wear-resistant waterproof cloth 3 and solidified by gluing; the wear-resistant rubber layer 4 It is used to wrap the waterproof cloth 3 after solidification; the diameter of the main conductor 1 wrapped with a No. 1 insulating layer 11 is greater than the thickness of the wire group 2; between the main conductor 1 and the No. An isolation layer and a shielding layer are sequentially arranged between the No. 2 insulating layers 22 . When working, the outermost wear-resistant rubber layer 4 is responsible for wear-resistant protection. The needs of power supply, communication, and grounding wires are realized through the main conductor 1 and the secondary conductor 21. The wear-resistant rubber layer 4 can be selected through the cable extruder It is integrally formed with the main conductor 1, the wire group 2, and the wear-resistant waterproof cloth 3 wrapped with a No. 1 insulating layer 11 on the surface, or the main conductor with a No. 1 insulating layer 11 wrapped on the surface with a planar wear-resistant rubber layer 4. 1. The wire group 2, the wear-resistant waterproof cloth 3 and other parts are completely wrapped, and then the wear-resistant rubber layer 4 is formed into a ring shape by softening the side of the wear-resistant rubber layer 4 with a red-hot metal sheet; among them, there is a No. 1 insulating The main conductor 1 of the layer 11 and the secondary conductor 21 wrapped with the second insulating layer 22 can be combined arbitrarily according to the number of 1:n. The secondary conductor 21 contained in the flat wire group 2 can be made according to actual needs. The wire group 2 of one group of sub-conductors 21, the wire group 2 of three groups of sub-conductors 21, the wire group 2 of four groups of sub-conductors 21, and the wire groups 2 of more than four groups of sub-conductors 21 are then formed by wrapping and bonding, which is beneficial to Reduce the width of the overall environment-friendly wear-resistant cable to facilitate the overall wiring and installation of the environment-friendly wear-resistant cable. It is not easy to cause confusion; the glue involved in this case can be waterproof and aging-resistant QIS-5708 silicone adhesive metal plastic glue, which can withstand high temperatures of 300°C; you can also choose CL-24/26AB glue, modified rings with high temperature resistance above 120°C Oxygen structural glue or other glue selected according to actual needs; when the wear-resistant rubber layer 4 of the environmentally friendly wear-resistant cable is severely worn, the wear-resistant rubber layer 4 can be removed by melting the glue until the environmentally friendly wear-resistant cable is used, and a new wear-resistant cable can be replaced. The rubber layer 4, when the number of secondary conductors 21 needs to be added to the environment-friendly wear-resistant cable, can be wound by supplementing the connection between the second concave part and the convex part on the wire group 2 according to actual needs, so that the environment-friendly wear-resistant cable Internally, the main conductor 1 and the secondary conductor 21 can be easily replaced when they need to be replaced, so that the environmentally friendly wear-resistant cable will not be scrapped as a whole, thereby realizing the environmental protection of the environmentally friendly wear-resistant cable. At the same time, the wear-resistant rubber layer 4 It has the effect of wear resistance and tear resistance, thereby improving the overall environmental protection and wear resistance of the environment-friendly wear-resistant cable; again, it is more convenient to disassemble the lead group 2 and the main conductor 1 wrapped with the No. 1 insulating layer 11 if necessary , it is also possible to make the wire group 2 and the main conductor 1 wrapped with a No. 1 insulating layer 11 not glued when wrapping, and can be selected according to actual needs; the environment-friendly wear-resistant cable of the present invention is mainly used within one kilometer For short-distance use, especially for indoor and outdoor short-distance line connections.

The outer surface of the wear-resistant rubber layer 4 is successively provided with slip rings 5 at intervals; and the inner surfaces of the two semicircular blocks 51 are provided with elastic sheets; the material of the elastic sheets is polyurethane rubber or polyethylene fiber material; the inner diameter of the slip ring 5 with elastic sheets and the wear-resistant rubber layer of the environment-friendly wear-resistant 4, the outer diameters are compatible; when in use, the two semicircular blocks 51 are engaged with the outer surface of the wear-resistant rubber layer 4 of the environment-friendly wear-resistant cable and pressed and fastened with each other. If necessary, the glue is firm; formed by the two semicircular blocks 51 On the one hand, the slip ring 5 can fix and strengthen the outer surface of the environmentally friendly wear-resistant cable, and on the other hand, it can block the environment-friendly wear-resistant cable when it is dragged and is torn by a sharp object, so as to avoid the damage of the environmentally friendly wear-resistant cable. On the other hand, because the outer diameter of the slip ring 5 is larger than the outer diameter of the wear-resistant rubber layer 4, the slip ring 5 can reduce the abrasion of the wear-resistant rubber layer 4 and the ground when dragging an environmentally friendly wear-resistant cable , is conducive to improving the service life of the environment-friendly wear-resistant cable, and the edges of both ends of the semicircular block 51 are tangent to the outer surface of the wear-resistant rubber layer 4, which can make the environment-friendly wear-resistant cable avoid obstacles, thereby making the environment-friendly wear-resistant cable more convenient. The grinding cable is dragged and wound; the slip ring 5 is made of a metal with better hardness or a rigid material with better wear resistance and hardness.

The outer surface of the No. 2 insulation layer 22 on the other side of the wire group 2 is provided with a second recess for press-fit connection, and the protrusion on one wire group 2 can be connected with its second recess or another wire group. The second recess on the 2 presses and snaps the connection. During operation, by setting a second concave part for press-fit connection on one side of the wire group 2, and setting a convex part for press-fit connection on the other side of the wire group 2, the connection of multiple wire groups 2 can be realized. Combination, it can be replaced, increased or decreased the number of wire groups 2 and the number of sub-conductors 21 when the use requirements change, which is convenient for the winding of the wire group 2 and reduces the overall width of the environmentally friendly wear-resistant cable, which is convenient for the environment-friendly wear-resistant The overall wiring installation of the cable is especially suitable for cables with many secondary conductors 21, especially for cables requiring five or more than ten secondary conductors 21. Different colors are applied to the outer surface to distinguish the plurality of secondary conductors 21 so that the problems of confusion and knotting are not easy to occur.

There are at least two groups of secondary conductors 21 in the wire group 2 , and each group of secondary conductors 21 is separated by a second insulating layer 22 . During work, described main conductor 1, secondary conductor 21 all can use compound articulated conductor, bundle articulated conductor, ordinary articulated conductor, special-shaped conductor fan-shaped, tile-shaped etc., single metal wire conductor, all pass through between each group of secondary conductors 21 The second insulating layer 22 is separated to form a plurality of secondary conductors 21 .

The lead group 2 also includes a rectangular rubber block 23 with a right-angled triangle in section; equal thickness, and the right-angled side of the rubber block 23 is provided with a second protrusion with the same structure as the lead group 2, the rubber block 23 and the lead group 2 are wrapped on the outside of the main conductor 1 so that the first insulation layer 11 is wrapped The cross section of the main conductor 1, the wire group 2 and the rubber block 23 tends to be circular after being wrapped and molded.

A production method of an environment-friendly wear-resistant cable, which is used to produce the above-mentioned environment-friendly wear-resistant cable, comprising the following production steps:

S1: connect the main conductor 1 wrapped with a No. 1 insulating layer 11 and the flat wire group 2 through the concave and convex parts;

If the number of secondary conductors 21 in the lead group 2 is insufficient, the second concave portion on the lead set 2 connected to the main conductor 1 is pressed and snap-fit connected with the convex portion on another lead set 2 to reach the required number of secondary conductors. Conductor 21, and according to actual needs, choose whether to press and snap connect the rubber block 23 with the convex part on the concave part of the lead wire group 2 at the end;

S2: After step S1 is completed, apply glue to the side of the flat wire group 2 in contact with the No. 1 insulating layer 11, and wrap the glued wire group 2 tightly around the main conductor 1 wrapped with the No. 1 insulating layer 11 The outer surface is glued solid;

S3: After step S2 is completed, glue is applied to the outer surface of the solidified wire group 2 and the surface of the wear-resistant waterproof cloth 3 that is about to be attached to the outer surface of the wire group 2, and the wear-resistant waterproof cloth 3 rolls are wrapped around the wire group 2 For the outer surface, the number of wrapping layers should be at least two;

S4: after step S3 is completed, wrapping the wear-resistant rubber layer 4 on the waterproof cloth 3 after solidification or forming and wrapping the wear-resistant rubber layer 4;

The glue in the above steps can choose QIS-5708 silicone adhesive metal plastic glue, high temperature resistance 300 ℃; also can choose CL-24/26AB glue, modified epoxy structural glue with high temperature resistance above 120 ℃ or other according to actual needs glue;

Tear resistance test of environmentally friendly wear-resistant cables:

Experiment preparation: eight-meter-long environmentally friendly wear-resistant cables and multiple ordinary cables, a box with gravel, holes for cables to pass through at both ends of the box, a weight, and multiple identical spring tensioners ;

The purpose of the experiment: to simulate the scene where the cable is scratched when it is pulled on the ground, so as to test the tear resistance of the cable;

Experimental steps: Pass one end of the cable through the box containing gravel, and make the gravel flush with the hole, so that the lower surface of the cable is in full contact with the gravel, pull the cable through the spring balance, and keep the pulling force of the control group the same; When comparing some ordinary cables with environment-friendly wear-resistant cables, weights are added to press the cables to increase the friction between the cables and gravel, and the comparison is made by changing the tension of the spring tensioner, which can be manually pulled or used. The traction equipment is pulled; and the scratch depth of the cable is measured by the surface scratch depth measuring instrument, and the following experimental data are obtained:

Experimental summary: Through the comparison of experimental data, it can be known that under the same tension, the wear-resistant rubber layer of the environmentally friendly wear-resistant cable has better tear resistance than ordinary cables, and can effectively block the continuous tearing and scratching of the cable surface , especially after adding heavy weights to ordinary cables and environment-friendly wear-resistant cables, the tear resistance and scratch resistance of environment-friendly wear-resistant cables can be distinguished more clearly; therefore, environment-friendly wear-resistant cables are more effective than ordinary cables The comprehensive material performance is significantly improved.

Abrasion resistance test of environmentally friendly wear-resistant cables: select the wear-resistant rubber layer of environmentally friendly wear-resistant cables as the experimental group, a total of three groups; ordinary cables as a control group, a total of three groups; press the material into a 3 mm sheet, weigh Mass, accurate to 0.1㎎, fix the thin slice on the wear tester, under the same conditions, scratch the same number of times, take off the thin slice and weigh the mass, the worn mass is used as a parameter to evaluate the wear resistance of the material, specifically The experimental data are as follows:

Experimental summary: Through the wear resistance test of environmentally friendly wear-resistant cables, it can be known that the wear resistance of environmentally friendly wear-resistant cables is better than that of ordinary cables.

Cable electric heating accelerated aging test:

The ambient environment of the cable is simulated by using the special aging box for the cable electric heating accelerated aging experiment. During the experiment, the temperature in the aging box fluctuates in the range of ±1°C, and a fan is installed in the box to provide flowing air for the box; the production of experimental samples : Peel off the outer sheath, waterproof cloth and glue of the cable to expose the inner insulation layer of the cable. The coupling temperature sensor is pasted on the stripped part of the outer sheath of the cable, and the coupling temperature sensor is fixed with insulating tape to receive the insulation layer of the cable. The temperature change signal of the cable insulation layer is collected through the signal conversion device, signal transmission optical fiber and computer; and the carrying capacity of different amplitudes is loaded according to the rated current during the experiment;

Among them, cables A and C are placed in an aging box at a temperature of 100°C and energized for the same number of days to simulate ordinary cables and environmentally friendly wear-resistant cables after a period of use;

According to the curve diagram of attached drawing 1 of the specification, the analysis of the experimental results: Through this experiment, the temperature rise data of the long-term operation of the cable can be obtained in a short period of time; The calorific value of the cable increases with the increase of the current carrying capacity of the cable; and the calorific value of the cable is related to the aging speed of the cable. The greater the calorific value of the cable, the faster the aging speed. Therefore, the aging resistance of the environmentally friendly wear-resistant cable The performance is better than that of ordinary cables, and with the passage of time, this aging resistance gap will gradually expand; at the same time, the speed of temperature rise also reflects the insulation performance of the cable, and the insulation of the environmentally friendly wear-resistant cable is better than that of ordinary cables. Insulation.

As mentioned above, although one embodiment of this invention was described, this invention is not limited to the said embodiment, Various changes are possible in the range which does not deviate from the summary of this invention.

Claims (10)

1. The utility model provides an environment-friendly wear-resisting cable, includes wear-resisting rubber layer (4), its characterized in that: the wear-resistant rubber layer (4) comprises the following materials in parts by weight:

40-50 parts of hydrogenated nitrile rubber, 20-30 parts of polyvinyl chloride resin, 10-18 parts of natural rubber, 12-20 parts of ethylene-octene copolymer, 5-10 parts of modified PP (polypropylene), 5-13 parts of silane coupling agent, 0.5-1 part of neoprene, 1-2 parts of sulfur, 2-5 parts of zinc oxide, 2-4 parts of magnesium oxide, 2.5-4 parts of magnesium hydroxide inorganic flame retardant, 1-2 parts of antimony trioxide, 10-20 parts of carbon microsphere, 5-10 parts of cast stone powder, 5-15 parts of nano carbon black, 15-20 parts of nano argil, 1-2 parts of CPE (chlorinated polyethylene) special stabilizer, 5-7 parts of trioctyl trimellitate, 0.5-1.5 parts of paraffin, 1.5-3 parts of stearic acid and 1-5 parts of pressure-sensitive microcapsule; 1-5 parts of nano silicon dioxide particles.

2. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the surface of the wear-resistant rubber layer (4) is coated with a reversible thermotropic material; the temperature sensing range of the reversible thermal change material is 60-130 ℃.

3. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the pressure-sensitive microcapsule contains a modified PP material with Izod notched impact strength of more than or equal to 120J/m.

4. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the wear-resistant rubber layer (4) also comprises 1-2 parts of calcium-zinc stabilizer and 2-3 parts of dodecyl dimethyl betaine according to parts by weight.

5. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the cable comprises a main conductor (1) with a first insulating layer (11) wrapped on the surface, auxiliary conductors (21) with a second insulating layer (22) wrapped on the surface, and flat lead groups (2) which are arranged between adjacent auxiliary conductors (21) in parallel and connected into a whole through the second insulating layer (22); the section of the first insulating layer (11) is in a hollow circular ring shape, a concave part for pressing, buckling and connecting is arranged at one edge of the first insulating layer (11), and the concave part is positioned on the inner side of the first insulating layer (11); the outer side surface of the second insulating layer (22) on one side surface of the lead group (2) is provided with a convex part for pressing, buckling and connecting, and the convex part is matched with the concave part of the first insulating layer (11); the lead group (2) is annularly wrapped outside the main conductor (1) and is fixed by glue; the outer side of the lead group (2) after being shaped is wrapped with a plurality of layers of wear-resistant waterproof cloth (3) and is shaped by gluing; the wear-resistant rubber layer (4) is used for wrapping the solid waterproof cloth (3); the diameter of the main conductor (1) wrapped with the first insulating layer (11) is larger than the thickness of the lead group (2).

6. The environment-friendly abrasion-resistant cable according to claim 1, wherein: slip rings (5) are sequentially arranged on the outer surface of the wear-resistant rubber layer (4) at intervals; the slip ring (5) comprises two semicircular blocks (51) which can be mutually inserted, and the edges of the two ends of each semicircular block (51) are tangent to the outer surface of the wear-resistant rubber layer (4).

7. The environment-friendly abrasion-resistant cable according to claim 1, wherein: and a second concave part for press buckling connection is arranged on the outer side surface of the second insulating layer (22) on the other side surface of the wire group (2), and the convex part on one wire group (2) can be connected with the second concave part of the wire group or the second concave part on the other wire group (2) in a press buckling manner.

8. The environment-friendly abrasion-resistant cable according to claim 1, wherein: at least two groups of auxiliary conductors (21) are arranged in the lead group (2), and the auxiliary conductors (21) in each group are separated by a second insulating layer (22).

9. The environment-friendly abrasion-resistant cable according to claim 1, wherein: the lead group (2) also comprises a rectangular rubber block (23) with a right-angled triangle-shaped section; the length of rubber block (23) along auxiliary conductor (21) axial is the same with wire group (2) length, one of them right angle limit and wire group (2) uniform thickness of rubber block (23), and this right angle edge of rubber block (23) be provided with wire group (2) on the second convex part that the structure is the same, rubber block (23) and wire group (2) parcel are in leading the body (1) outside together and make the parcel have leading body (1) of an insulating layer (11), the cross-section after wire group (2) and rubber block (23) parcel shaping tends to circularly.

10. The production method of the environment-friendly wear-resistant cable is characterized by comprising the following steps: the method for producing the environment-friendly wear-resistant cable of claims 1-9 comprises the following production steps:

s1: pressing and buckling the main conductor (1) wrapped with the first insulating layer (11) and the flat conductor group (2) through the concave-convex part;

if the number of the auxiliary conductors (21) in the lead group (2) is not enough, the second concave part on the lead group (2) connected with the main conductor (1) is connected with the convex part on the other lead group (2) in a pressing and buckling way, so that the required number of the auxiliary conductors (21) is achieved;

s2: after step S1 is completed, glue is applied to a surface of the flat lead group (2) contacting the first insulation layer (11), and the glued lead group (2) is tightly wrapped on the outer surface of the main conductor (1) wrapped with the first insulation layer (11) and glued and fixed;

s3: after the step S2 is finished, gluing the outer surface of the fixed lead group (2) and the surface of the wear-resistant waterproof cloth (3) to be attached to the outer surface of the lead group (2), and wrapping the wear-resistant waterproof cloth (3) on the outer surface of the lead group (2) by at least two layers;

s4: and after the step S3 is finished, wrapping the wear-resistant rubber layer (4) outside the solid waterproof cloth (3) or forming and wrapping the wear-resistant rubber layer (4).