High-load-bearing tensile reel cable and manufacturing method thereof

Abstract

The invention relates to the technical field of cable processing, and discloses a high-load-bearing tensile reel cable and a manufacturing method thereof.The cable comprises a cable core used for providing a low-resistance access for current, rubber particles are arranged on the outer wall of the cable core, and the rubber particles are used for avoiding direct contact friction between the cable core and an insulating layer; the filling space is arranged between the insulating layer and the wire core, the insulating layer is used for preventing current leakage and is in direct contact with the buffer layer, the buffer layer is used for relieving extrusion between the insulating layer and the outside, the filling space is arranged between the insulating layer and the reinforcing layer, and the reinforcing layer is used for providing additional support. Part of tensile stress is absorbed through the elastic deformation of the corrugated layer, so that the influence on the internal structure is reduced, the tensile property of the cable is improved, the corrugated layer and the protective layer enable the cable to be bent more easily and adapt to different installation and use environments, the shape can be changed more flexibly during bending, the bending radius is reduced, and the service life of the cable is prolonged. And the cable damage caused by winding is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing, and in particular to a high-load-bearing and tensile-resistant reel cable and a manufacturing method thereof. Background Art

[0002] Under the background of rapid development of modern industry, various large-scale machinery such as cranes, hoists, port machinery and other equipment play a vital role in production operations. As the key component connecting these devices and transmitting power and signals, the performance requirements of reel cables are becoming increasingly stringent. With the continuous expansion of industrial production scale and continuous technological advancement, the operating speed, load-bearing weight and complexity of the working environment of equipment are constantly increasing. Under such circumstances, a high-load-bearing and tensile-resistant reel cable is needed to meet the stable operation requirements of equipment under high load, frequent movement and complex working conditions.

[0003] However, in the current technology, a single sheath lacks stress absorption, cannot disperse and relieve tension, and limits the bending radius, which in turn leads to stress concentration in the internal structure due to bending, affecting the reliability and safety of the cable. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a high-load-bearing and tensile-resistant reel cable and a manufacturing method, which solves the problem that a single sheath lacks stress absorption, resulting in stress concentration in the internal structure due to bending, affecting the reliability and safety of the cable.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-load-bearing and tensile-resistant reel cable, comprising:

[0006] A wire core, used for providing a low-resistance path for electric current, wherein the outer wall of the wire core is provided with rubber particles;

[0007] Rubber particles are used to avoid direct contact and friction between the wire core and the insulation layer, and are arranged in the filling space between the insulation layer and the wire core;

[0008] An insulating layer, used to prevent current leakage and in direct contact with the buffer layer;

[0009] The buffer layer is used to relieve the compression between the insulating layer and the outside, and is arranged in the filling space between the insulating layer and the reinforcement layer;

[0010] A reinforcement layer, used to provide additional support, disposed between the buffer layer and the corrugated layer;

[0011] The corrugated layer is used to absorb tensile stress and facilitate bending, and is arranged between the reinforcement layer and the protective layer;

[0012] The protective layer is used to resist external wear and is in contact with the outer side of the corrugated layer.

[0013] Preferably, the insulating layer is made of EPDM rubber and white carbon black, the buffer layer is made of two layers of twill weave mixed with round Kevlar and polyester fiber, the ratio of polyester fiber to Kevlar is 3:1, and the reinforcement layer is woven obliquely with aramid fiber, which is opposite to the weaving direction of the buffer layer.

[0014] Preferably, the corrugated layer is made by extruding nylon particles and dioctyl phthalate, and the protective layer is a polyurethane elastomer polymerized from polyisocyanate and polyol raw materials.

[0015] A method for manufacturing a high-load-bearing and tensile-resistant reel cable comprises the following steps:

[0016] S1, wire core production: the conductive material is drawn into filaments of a specific diameter through a wire drawing process, and three filaments are twisted together by a twisting machine to form a wire core with a certain cross-sectional area;

[0017] S2, adding rubber particles: first, the wire core is rotated by a rotating device, and then sent to a conveying mechanism, and then a layer of adhesive is evenly sprayed or applied on the surface of the wire core, and the rubber particles are sprinkled on the surface of the wire core by an air jet device for bonding, and then dried and cured by a dryer;

[0018] S3, preparation of the insulation layer: adding a certain proportion of EPDM rubber and white carbon black into an internal mixer for heating, adding the internally mixed materials into the hopper of an extruder to extrude the insulation layer, and then passing the extruded insulation layer through a traction device to control the speed at which the insulation layer is wrapped around the wire core;

[0019] S4, buffer layer weaving: Kevlar and polyester fiber are put into a stirring device for mixing, and then the mixed Kevlar and polyester fiber are introduced into a braiding machine through a yarn frame, and then three insulating layer wrapped cores are arranged in parallel, and after maintaining an appropriate spacing, the buffer layer wrapped cores are cross-braided by the braiding machine, and then the second layer of the buffer layer is braided on the outside of the three insulating layer wrapped cores together, and the braiding direction is the same as that of the first layer of the buffer layer;

[0020] S5, reinforcement layer construction: determining the oblique angle of the reinforcing layer's weaving direction opposite to the buffer layer's weaving direction, and performing weaving operations on the buffer layer's periphery through a weaving device;

[0021] S6, wrapping of corrugated layer and protective layer: adding nylon particles and dioctyl phthalate into a high-speed mixer, and controlling the temperature and stirring to make them blended, then adding them into an extruder, and adjusting the parameters of the extruder to extrude them into a corrugated layer shape with specific parameters, and quickly wrapping them around the reinforcing layer for bonding before cooling, and then wrapping the protective layer heat shrink tubing around the corrugated layer, heating the heat shrink tubing through a heating device, and tightly wrapping it around the corrugated layer to complete the production of the cable

[0022] Preferably, the conductive material in S1 is copper, the twisting direction is left-handed, the rubber particles in S2 have a particle size of 0.5 mm-1 mm, the adhesive is an epoxy resin adhesive, the rotation speed of the wire core is 10-15 revolutions per minute, and the angle formed by the ejection direction of the airflow mixed with rubber particles of the airflow injection device and the surface of the wire core is 75°-90°.

[0023] Preferably, the ratio of EPDM rubber to white carbon black in S3 is 100:30, the temperature of the internal mixer is controlled at 120°C-180°C, the mixing time is 10min-30min, the speed of the internal mixer is 30-60 rpm, and the speed of extruding the insulating layer of the extruder is consistent with the traction speed of the traction device.

[0024] Preferably, the first buffer layer in S4 is woven at an angle of 30°-60° for cross-braiding the buffer layers of the three wrapped wire cores, and the second buffer layer is woven in the same direction as the first layer, and is tightly combined with the first buffer layer without gaps or stratification.

[0025] Preferably, in S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer at an angle of 120°-150°.

[0026] Preferably, the ratio of nylon particles to dioctyl phthalate in S6 is 100:10-100:30, the mixer temperature is 150°C-200°C, the corrugation height of the corrugated layer is 2mm-10mm, the corrugation width is 3mm-15mm, the corrugation spacing is 5mm-20mm, and the thickness is 1mm to 3mm.

[0027] The present invention provides a high-load-bearing and tensile-resistant reel cable and a manufacturing method thereof.

[0028] Beneficial effects:

[0029] 1. The present invention absorbs part of the tensile stress through the elastic deformation of the corrugated layer, thereby reducing the impact on the internal structure and improving the tensile resistance of the cable. The corrugated layer and the protective layer make the cable easier to bend and adapt to different installation and use environments, ensuring that the shape can be changed more flexibly when bending, reducing the bending radius and reducing the effect of winding on the cable. Damage.

[0030] 2. The present invention fills rubber particles between the wire core and the rubber particles. The elasticity and softness of the rubber particles can buffer the friction and extrusion between the wire core and the insulation layer, reduce the risk of wear and rupture of the insulation layer, which helps to extend the service life of the cable and improve the reliability and safety of the cable.

[0031] 3. The present invention increases the strength and stability of the insulating layer by cross-braiding the first buffer layer in an oblique direction, so that it can better withstand external forces from different directions. At the same time, the second layer is woven in the same direction as the first layer, and the second layer of the buffer layer is woven together on the outside of the wire core wrapped by three insulating layers, thereby reducing the impact on the internal wire core. When the cable is squeezed, bent or vibrated, the buffer layer can effectively protect the wire core and improve the reliability and service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of a high-load-bearing and tensile-resistant reel cable of the present invention;

[0033] Figure 2 It is a schematic diagram of the corrugated layer of a high load-bearing and tensile-resistant reel cable of the present invention;

[0034] Figure 3 The present invention is a flow chart of a high load-bearing and tensile-resistant reel cable and a manufacturing method thereof.

[0035] Among them, 1. wire core; 2. rubber particles; 3. insulation layer; 4. buffer layer; 5. reinforcement layer; 6. corrugated layer; 7. protective layer. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please refer to the attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides a high load-bearing and tensile-resistant reel cable. It includes:

[0038] The wire core 1 is used to provide a low-resistance path for the current, and the outer wall of the wire core 1 is provided with rubber particles 2;

[0039] The rubber particles 2 are used to avoid direct contact and friction between the wire core 1 and the insulating layer 3, and are arranged in the filling space between the insulating layer 3 and the wire core 1.

[0040] The insulating layer 3 is used to prevent current leakage and is in direct contact with the buffer layer 4;

[0041] The buffer layer 4 is used to relieve the compression between the insulating layer 3 and the outside, and is arranged in the filling space between the insulating layer 3 and the reinforcing layer 5;

[0042] A reinforcing layer 5, used to provide additional support, is disposed between the buffer layer 4 and the corrugated layer 6;

[0043] The corrugated layer 6 is used to absorb tensile stress and facilitate bending, and is arranged between the reinforcing layer 5 and the protective layer 7;

[0044] The protective layer 7 is used to resist external wear and tear and is in contact with the outer side of the corrugated layer 6 .

[0045] Specifically, the core 1 is the core part of current transmission, and the core 1 is mainly responsible for the key task of providing a low-resistance path for the current. Through its good conductive properties, it ensures that the current can flow efficiently and stably in the cable to achieve the transmission and distribution of electric energy, while the insulating layer 3 limits the current inside the core 1 to prevent the current from leaking to the outside. At the same time, the insulating layer 3 provides a stable foundation for the buffer layer 4, so that the buffer layer 4 can effectively play its role in alleviating external extrusion. On the other hand, the insulating layer 3 also protects the buffer layer 4 from the influence of the current, ensuring that the performance of the buffer layer 4 is not damaged. During the use of the cable, due to winding or various reasons, relative movement may occur between the core 1 and the insulating layer 3. The elasticity and softness of the rubber particles 2 can buffer the friction and extrusion between the core 1 and the insulating layer 3, reducing the risk of wear and rupture of the insulating layer 3. This helps to extend the service life of the cable, improve the reliability and safety of the cable, and at the same time increase the flexibility of the cable, making the cable easier to bend and twist. The reinforcement layer 5 provides additional mechanical support for the cable. When the cable is subjected to external tension, pressure or bending force, the reinforcement layer 5 can bear part of the stress and reduce damage to the internal structure, ensuring that the cable can maintain good performance in different working environments. When the cable is subjected to tensile force, the corrugated layer 6 can absorb part of the tensile stress through its own elastic deformation, thereby reducing the impact on the internal structure and improving the cable's tensile resistance. The design of the corrugated layer 6 makes the cable easier to bend and adapt to different installation and use environments. It can change its shape more flexibly when bending, reduce the bending radius, and reduce damage to the cable when winding.

[0046] The insulating layer 3 is made of EPDM rubber and white carbon black, the buffer layer 4 is made of two layers of twill weave mixed with round Kevlar and polyester fiber, the ratio of polyester fiber to Kevlar is 3:1, and the reinforcement layer 5 is woven obliquely with aramid fiber, which is opposite to the weaving direction of the buffer layer 4.

[0047] Specifically, EPDM rubber itself has good electrical insulation, and the addition of white carbon black can further improve the insulation strength and dielectric properties of the insulating layer 3. It can effectively prevent current leakage and ensure the safe operation of the electrical system. The buffer layer 4 is made of a circular Kevlar and a polyester fiber mixed with two layers of twill weave. The Kevlar has extremely high strength and wear resistance, and the polyester fiber has certain flexibility and elasticity. After the two are mixed and woven, they can effectively absorb external pressure, reduce the impact on the internal structure, and ensure the reliability of the cable in various complex environments. The reinforcement layer 5 is made of aramid fiber oblique weaving, which provides additional support for the cable and is opposite to the weaving direction of the buffer layer 4, so that the reinforcement layer 5 and the buffer layer 4 can cooperate with each other and jointly bear external pressure and stress. The tensile, bending and compressive resistance of the cable are improved, and the overall stability of the cable is enhanced.

[0048] The corrugated layer 6 is made by extruding nylon particles and dioctyl phthalate, and the protective layer 7 is made of a polyurethane elastomer polymerized from polyisocyanate and polyol raw materials.

[0049] Specifically, the corrugated layer 6 extruded by blending nylon particles and dioctyl phthalate has good flexibility, which enables the cable to be installed and used at a smaller bending radius, thereby increasing the application range of the cable, effectively absorbing tensile stress, reducing the risk of cable damage due to stretching, improving the reliability and service life of the cable, and ensuring the reliability when the cable is wound up. The protective layer 7 is made of polyurethane elastomer, which has excellent wear resistance and can effectively protect the cable from external wear and tear, reduce damage to the cable surface, and maintain the appearance and performance of the cable. At the same time, when facing various chemical substances, the protective layer 7 can maintain stable performance and prevent chemical corrosion from damaging the cable, and is suitable for various harsh chemical environments.

[0050] Please see attached Figure 3 A high load-bearing and tensile-resistant reel cable and a manufacturing method thereof, comprising the following steps:

[0051] S1, wire core production: the conductive material is drawn into filaments of a specific diameter through a wire drawing process, and three filaments are twisted together by a twisting machine to form a wire core with a certain cross-sectional area;

[0052] S2, adding rubber particles: first, the wire core is rotated by a rotating device, and then sent to a conveying mechanism, and then a layer of adhesive is evenly sprayed or applied on the surface of the wire core, and the rubber particles are sprinkled on the surface of the wire core by an air jet device for bonding, and then dried and cured by a dryer;

[0053] S3, preparation of the insulation layer: adding a certain proportion of EPDM rubber and white carbon black into an internal mixer for heating, adding the internally mixed materials into the hopper of an extruder to extrude the insulation layer, and then passing the extruded insulation layer through a traction device to control the speed at which the insulation layer is wrapped around the wire core;

[0054] S4, buffer layer weaving: Kevlar and polyester fiber are put into a stirring device for mixing, and then the mixed Kevlar and polyester fiber are introduced into a braiding machine through a yarn frame, and then three insulating layer wrapped cores are arranged in parallel, and after maintaining an appropriate spacing, the buffer layer wrapped cores are cross-braided by the braiding machine, and then the second layer of the buffer layer is braided on the outside of the three insulating layer wrapped cores together, and the braiding direction is the same as that of the first layer of the buffer layer;

[0055] Specifically, the three insulating cores are arranged in parallel and maintained at appropriate intervals so that the buffer layer can be evenly covered around the cores when weaving, ensuring that each core is fully protected. The cross-diagonal weaving of the first buffer layer can increase the strength and stability of the insulation layer, so that it can better withstand external forces from different directions. The second layer is woven in the same direction as the first layer, which further enhances the thickness and overall performance of the buffer layer. The cross-diagonal weaving and double-layer weaving structure greatly improve the buffering effect of the buffer layer, which can absorb and disperse external impact force and reduce the impact on the internal core. When the cable is squeezed, bent or vibrated, the buffer layer can effectively protect the core and improve the reliability and service life of the cable.

[0056] S5, reinforcement layer construction: determining the oblique angle of the reinforcing layer's weaving direction opposite to the buffer layer's weaving direction, and performing weaving operations on the buffer layer's periphery through a weaving device;

[0057] S6, wrapping of the corrugated layer and the protective layer: adding nylon particles and dioctyl phthalate into a high-speed mixer, and controlling the temperature and stirring to make them blended, then adding them into an extruder, and adjusting the parameters of the extruder to extrude them into a corrugated layer shape with specific parameters, and quickly wrapping them around the reinforcing layer for bonding before cooling, and then wrapping the protective layer heat shrink tubing around the corrugated layer, heating the heat shrink tubing through a heating device, and tightly wrapping it around the corrugated layer to complete the production of the cable.

[0058] The conductive material in S1 is copper, the twisting direction is left, the rubber particle size in S2 is 0.5mm-1mm, the adhesive is epoxy resin adhesive, the rotation speed of the core is 10-15 revolutions per minute, and the angle formed by the airflow spraying direction of the airflow mixed with rubber particles of the airflow injection device and the surface of the core is 75°-90°.

[0059] The ratio of EPDM rubber to white carbon black in S3 is 100:30, the temperature of the internal mixer is controlled at 120℃-180℃, the mixing time is 10min-30min, the speed of the internal mixer is 30-60 rpm, and the speed of the extruder extruding the insulation layer is consistent with the traction speed of the traction device.

[0060] In S4, the first buffer layer is woven by cross-braiding the buffer layers of the three wrapped wire cores at an angle of 30°-60°. The second buffer layer is woven in the same direction as the first layer and is tightly combined with the first buffer layer without gaps or stratification.

[0061] In S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer at an angle of 120°-150°.

[0062] The ratio of nylon particles to dioctyl phthalate in S6 is 100:10-100:30, the mixer temperature is 150°C-200°C, the corrugation height of the corrugated layer is 2mm-10mm, the corrugation width is 3mm-15mm, the corrugation spacing is 5mm-20mm, and the thickness is 1mm to 3mm.

[0063] Embodiment 1:

[0064] S1, wire core production: the conductive material is drawn into filaments of a specific diameter through a wire drawing process, and three filaments are twisted together by a twisting machine to form a wire core with a certain cross-sectional area;

[0065] S2, adding rubber particles: first, the wire core is rotated by a rotating device, and then sent to a conveying mechanism, and then a layer of adhesive is evenly sprayed or applied on the surface of the wire core, and the rubber particles are sprinkled on the surface of the wire core by an air jet device for bonding, and then dried and cured by a dryer;

[0066] S3, preparation of the insulation layer: adding a certain proportion of EPDM rubber and white carbon black into an internal mixer for heating, adding the internally mixed materials into the hopper of an extruder to extrude the insulation layer, and then passing the extruded insulation layer through a traction device to control the speed at which the insulation layer is wrapped around the wire core;

[0067] S4, buffer layer weaving: Kevlar and polyester fiber are put into a stirring device for mixing, and then the mixed Kevlar and polyester fiber are introduced into a braiding machine through a yarn frame, and then three insulating layer wrapped cores are arranged in parallel, and after maintaining an appropriate spacing, the buffer layer wrapped cores are cross-braided by the braiding machine, and then the second layer of the buffer layer is braided on the outside of the three insulating layer wrapped cores together, and the braiding direction is the same as that of the first layer of the buffer layer;

[0068] S5, reinforcement layer construction: determining the oblique angle of the reinforcing layer's weaving direction opposite to the buffer layer's weaving direction, and performing weaving operations on the buffer layer's periphery through a weaving device;

[0069] S6, wrapping of the corrugated layer and the protective layer: adding nylon particles and dioctyl phthalate into a high-speed mixer, and controlling the temperature and stirring to make them blended, then adding them into an extruder, and adjusting the parameters of the extruder to extrude them into a corrugated layer shape with specific parameters, and quickly wrapping them around the reinforcing layer for bonding before cooling, and then wrapping the protective layer heat shrink tubing around the corrugated layer, heating the heat shrink tubing through a heating device, and tightly wrapping it around the corrugated layer to complete the production of the cable.

[0070] The conductive material in S1 is copper, the twisting direction is left, the rubber particle size in S2 is 0.5 mm, the adhesive is epoxy resin adhesive, the rotation speed of the wire core is 10 revolutions per minute, and the angle formed by the spray direction of the airflow mixed with rubber particles of the airflow injection device and the surface of the wire core is 75°.

[0071] The ratio of EPDM rubber to silica in S3 is 100:30, the temperature of the internal mixer is controlled at 120°C, the mixing time is 10 min, the speed of the internal mixer is 30 rpm, and the speed of extruding the insulating layer of the extruder is consistent with the traction speed of the traction device.

[0072] In S4, the first buffer layer is woven with three wrapped cores at a cross-braiding angle of 30°. The second buffer layer is woven in the same direction as the first layer and is tightly combined with the first buffer layer without gaps or stratification.

[0073] In S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer at an angle of 150°.

[0074] In S6, the ratio of nylon particles to dioctyl phthalate is 100:10, the mixing temperature is 150°C, the corrugation height of the extruded corrugated layer is 2 mm, the corrugation width is 3 mm, the corrugation spacing is 5 mm, and the thickness is 1 mm.

[0075] Embodiment 2:

[0076] The difference between this embodiment and the above-mentioned embodiment 1 is that:

[0077] In S4, the first buffer layer is woven by cross-braiding the buffer layers of the three wrapped wire cores at an angle of 45°. The second buffer layer is woven in the same direction as the first layer and is tightly combined with the first buffer layer without gaps or stratification.

[0078] In S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer, at an angle of 135°.

[0079] In S6, the ratio of nylon particles to dioctyl phthalate is 100:30, the mixing temperature is 150°C, the corrugation height of the extruded corrugated layer is 2 mm, the corrugation width is 3 mm, the corrugation spacing is 5 mm, and the thickness is 1 mm.

[0080] Embodiment three:

[0081] The difference between this embodiment and the above-mentioned embodiment 1 is that:

[0082] In S4, the first buffer layer is woven with three wrapped cores at a cross-braiding angle of 60°. The second buffer layer is woven in the same direction as the first layer and is tightly combined with the first buffer layer without gaps or stratification.

[0083] In S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer at an angle of 120°.

[0084] In S6, the ratio of nylon particles to dioctyl phthalate is 100:10, the mixing temperature is 200°C, the corrugation height of the extruded corrugated layer is 10 mm, the corrugation width is 15 mm, the corrugation spacing is 20 mm, and the thickness is 3 mm.

[0085] Table 1:

[0086]

[0087] The bending radius refers to the radius distance from the center line of the cable to the inner side of the bend when the cable is bent, which reflects the bending performance of the cable. The tensile strength represents the ability of the cable to resist being stretched without breaking or being damaged. In the above table, the corrugated layer and the larger parameters have the best bending performance, and the larger braiding angle may make the cable more adaptable to changes in external force when bearing weight and better disperse the tensile force.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high load-bearing and tensile-resistant reel cable, characterized in that: include: A wire core (1) is used to provide a low-resistance path for electric current, and the outer wall of the wire core (1) is provided with rubber particles (2); The rubber particles (2) are used to avoid direct contact and friction between the wire core (1) and the insulating layer (3), and are arranged in the filling space between the insulating layer (3) and the wire core (1); An insulating layer (3), used to prevent current leakage and in direct contact with the buffer layer (4); A buffer layer (4), used to relieve the compression between the insulating layer (3) and the outside, and arranged in the filling space between the insulating layer (3) and the reinforcing layer (5); A reinforcing layer (5), used for providing additional support, disposed between the buffer layer (4) and the corrugated layer (6); The corrugated layer (6) is used to absorb tensile stress and facilitate bending, and is arranged between the reinforcing layer (5) and the protective layer (7); The protective layer (7) is used to resist external wear and tear and is in contact with the outer side of the corrugated layer (6).

2. A high load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The insulating layer (3) is made of EPDM rubber and white carbon black, the buffer layer (4) is made of two layers of twill weaving of round Kevlar and polyester fiber, the ratio of polyester fiber to Kevlar is 3:1, and the reinforcement layer (5) is made of aramid fiber woven diagonally, in the opposite direction to the buffer layer (4).

3. A high load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The corrugated layer (6) is made by extruding nylon particles and dioctyl phthalate, and the protective layer (7) is a polyurethane elastomer polymerized from polyisocyanate and polyol raw materials.

4. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The following steps are involved: S1, wire core production: the conductive material is drawn into filaments of a specific diameter through a wire drawing process, and three filaments are twisted together by a twisting machine to form a wire core with a certain cross-sectional area; S2, adding rubber particles: first, the wire core is rotated by a rotating device, and then sent to a conveying mechanism, and then a layer of adhesive is evenly sprayed or applied on the surface of the wire core, and the rubber particles are sprinkled on the surface of the wire core by an air jet device for bonding, and then dried and cured by a dryer; S3, preparation of the insulation layer: adding a certain proportion of EPDM rubber and white carbon black into an internal mixer for heating, adding the internally mixed materials into the hopper of an extruder to extrude the insulation layer, and then passing the extruded insulation layer through a traction device to control the speed at which the insulation layer is wrapped around the wire core; S4, buffer layer weaving: Kevlar and polyester fiber are put into a stirring device for mixing, and then the mixed Kevlar and polyester fiber are introduced into a braiding machine through a yarn frame, and then three insulating layer wrapped cores are arranged in parallel, and after maintaining an appropriate spacing, the buffer layer wrapped cores are cross-braided by the braiding machine, and then the second layer of the buffer layer is braided on the outside of the three insulating layer wrapped cores together, and the braiding direction is the same as that of the first layer of the buffer layer; S5, reinforcement layer construction: determining the oblique angle of the reinforcing layer's weaving direction opposite to the buffer layer's weaving direction, and performing weaving operations on the buffer layer's periphery through a weaving device; S6, wrapping of the corrugated layer and the protective layer: adding nylon particles and dioctyl phthalate into a high-speed mixer, and controlling the temperature and stirring to make them blended, then adding them into an extruder, and adjusting the parameters of the extruder to extrude them into a corrugated layer shape with specific parameters, and quickly wrapping them around the reinforcing layer for bonding before cooling, and then wrapping the protective layer heat shrink tubing around the corrugated layer, heating the heat shrink tubing through a heating device, and tightly wrapping it around the corrugated layer to complete the production of the cable.

5. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The conductive material in S1 is copper, the twisting direction is left, the rubber particles in S2 have a particle size of 0.5mm-1mm, the adhesive is an epoxy resin adhesive, the rotation speed of the wire core is 10-15 revolutions per minute, and the angle formed by the ejection direction of the airflow mixed with rubber particles of the airflow injection device and the surface of the wire core is 75°-90°.

6. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The ratio of EPDM rubber to white carbon black in S3 is 100:30, the temperature of the internal mixer is controlled at 120°C-180°C, the internal mixer time is 10min-30min, the rotation speed of the internal mixer is 30-60 rpm, and the speed of extruding the insulating layer of the extruder is consistent with the traction speed of the traction device.

7. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The first buffer layer in S4 is woven by cross-braiding the buffer layers of the three wrapped wire cores at an angle of 30°-60°, and the second buffer layer is woven in the same direction as the first layer, and is tightly combined with the first buffer layer without gaps or stratification.

8. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: In the S5, the weaving direction of the reinforcement layer is opposite to the weaving direction of the buffer layer at an angle of 120°-150°.

9. The method for manufacturing a high-load-bearing and tensile-resistant reel cable according to claim 1, characterized in that: The ratio of nylon particles to dioctyl phthalate in the S6 is 100:10-100:30, the mixer temperature is 150°C-200°C, the corrugation height of the corrugated layer is 2mm-10mm, the corrugation width is 3mm-15mm, the corrugation spacing is 5mm-20mm, and the thickness is 1mm to 3mm.

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