Novel wear-resistant and pressure-resistant drag chain cable

Abstract

The utility model provides a novel wear-resistant pressure-resistant drag chain cable, which comprises a wire core and a sheath layer group coating the periphery of the wire core, and is characterized in that the wire core comprises a plurality of conductors, insulating layers coating the peripheries of the conductors, and reinforcing assemblies staggered with the conductors at intervals, and the plurality of conductors and the reinforcing assemblies are arranged in a stranded manner; by arranging the reinforcing assembly in the cable core, the mechanical strength of the cable core is effectively improved, and when the tow chain cable is wound and unwound in a reel system and cable winding and unwinding operation is frequently carried out, the reinforcing assembly in the cable core enhances the overall mechanical strength of the cable, so that the tow chain cable does not generate mechanical fatigue after frequent reciprocating winding action, and the service life of the tow chain cable is prolonged. Quality problems of conductor core breakage, sheath cracking and aging are avoided, the service life of the drag chain cable can be effectively prolonged, and the drag chain cable has the advantages of being simple in structure, low in implementation cost and convenient to popularize and implement.

Description

Technical Field

[0001] This application belongs to the field of cable manufacturing technology, specifically relating to a new type of wear-resistant and pressure-resistant drag chain cable. Background Technology

[0002] In the prior art, drag chain cables are cables specifically designed for use in drag chain systems. They provide flexibility and protection during the back-and-forth movement of equipment. The design of drag chain cables allows them to maintain stable performance under continuous bending, stretching and compression, thereby reducing wear and extending service life. These cables typically have high flexibility, abrasion resistance, tensile strength and good anti-interference performance, and are suitable for industrial automation, robotics, logistics systems and other fields.

[0003] In existing technologies, the reel system requires frequent cable winding and unwinding operations. The drag chain cable laid in it will be in a continuous and frequent dynamic winding state. Under the laying environment of thousands of reciprocating movements and back-and-forth friction, ordinary drag chain cables are prone to a series of problems such as conductor core breakage, sheath cracking and easy aging. The service life is short, frequent maintenance is required, which increases the labor maintenance cost and the actual user experience is poor. Therefore, there is an urgent need to make improvements. Utility Model Content

[0004] In order to address the technical problems in the prior art where drag chain cables are typically wound and unwound in a reel system, which requires frequent winding and unwinding operations, the drag chain cable is constantly in a dynamic winding state with continuous and frequent reciprocating motion. Under the laying environment of thousands of reciprocating movements and back-and-forth friction, ordinary drag chain cables are prone to conductor core breakage, sheath cracking, and easy aging. This application proposes a new type of wear-resistant and pressure-resistant drag chain cable.

[0005] This application adopts the following solution: a novel wear-resistant and pressure-resistant drag chain cable, including a conductor core and a sheath layer group covering the outer periphery of the conductor core. The conductor core includes multiple conductors, an insulation layer covering the outer periphery of each conductor, and reinforcing components that are staggered and spaced apart from each conductor. The multiple conductors are twisted together with the reinforcing components.

[0006] In one embodiment, the conductor is made of multiple strands of conductor wire twisted together, and the conductor wire is made of Class VI tin-plated soft copper.

[0007] In one embodiment, the reinforcing component includes a central reinforcing member located at the center of the conductor core, and a filling reinforcing member filling between the multiple strands of the conductors. The multiple strands of the conductors are arranged around the central reinforcing member with the central reinforcing member as the center, and the multiple strands of the conductors are twisted together with the central reinforcing member.

[0008] In one embodiment, the central reinforcement is made of aramid fiber, the filler reinforcement is made of fine hemp rope, and the radius of the central reinforcement is larger than the radius of the filler reinforcement.

[0009] In one embodiment, the central reinforcement is made of irradiated ethylene propylene rubber extruded from aramid yarn.

[0010] In one embodiment, the insulating layer is made of ethylene propylene rubber.

[0011] In one embodiment, the sheath layer group includes an inner sheath layer covering the outer periphery of the conductor, a reinforcing anti-torsion layer covering the outer periphery of the inner sheath layer, and an outer sheath layer covering the outer periphery of the reinforcing anti-torsion layer.

[0012] In one embodiment, the thickness of the inner sheath layer is less than the thickness of the outer sheath layer, and both the inner and outer sheath layers are made of thermoplastic polyurethane elastomer rubber.

[0013] In one embodiment, the reinforcing anti-torsion layer is woven from a mixture of tin-plated copper wire and aramid fiber, wherein the tin-plated copper wire coverage is greater than 80%.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] This application provides a novel wear-resistant and pressure-resistant drag chain cable, which includes a conductor core and a sheath layer covering the outer periphery of the conductor core. The conductor core includes multiple conductors, an insulation layer covering the outer periphery of each conductor, and reinforcing components that are staggered with each conductor. The multiple conductors and reinforcing components are twisted together. By setting reinforcing components inside the conductor core, the mechanical strength of the conductor core is effectively improved. When the drag chain cable is wound and unwound in a reel system and frequent winding and unwinding operations are performed, the reinforcing components inside the conductor core enhance the overall mechanical strength of the cable, so that the drag chain cable will not experience mechanical fatigue after frequent reciprocating winding operations, avoiding quality problems such as conductor core breakage, sheath cracking, and aging. It can effectively extend the service life of the drag chain cable and has the advantages of simple structure, low implementation cost, and easy promotion and implementation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of a novel wear-resistant and pressure-resistant drag chain cable according to this application. Detailed Implementation

[0017] Combination Figure 1The content shown further illustrates the technical solution provided in this application. A novel wear-resistant and pressure-resistant drag chain cable includes a conductor core 1 and a sheath layer group 2 covering the outer periphery of the conductor core 1. The conductor core 1 includes multiple conductors 10, an insulation layer 11 covering the outer periphery of each conductor 10, and reinforcing components 12 that are staggered and spaced apart from each conductor 10. The multiple conductors 10 and the reinforcing components 12 are twisted together.

[0018] This application provides a novel wear-resistant and pressure-resistant drag chain cable, which includes a conductor core and a sheath layer covering the outer periphery of the conductor core. The conductor core includes multiple conductors, an insulation layer covering the outer periphery of each conductor, and reinforcing components that are staggered with each conductor. The multiple conductors and reinforcing components are twisted together. By setting reinforcing components inside the conductor core, the mechanical strength of the conductor core is effectively improved. When the drag chain cable is wound and unwound in a reel system and frequent winding and unwinding operations are performed, the reinforcing components inside the conductor core enhance the overall mechanical strength of the cable, so that the drag chain cable will not experience mechanical fatigue after frequent reciprocating winding operations, avoiding quality problems such as conductor core breakage, sheath cracking, and aging. It can effectively extend the service life of the drag chain cable and has the advantages of simple structure, low implementation cost, and easy promotion and implementation.

[0019] In this embodiment, the conductor 10 is formed by twisting together multiple conductor wires 13, and the material of the conductor wires 13 is tin-plated soft copper of type VI.

[0020] In actual implementation, the conductor is wound with 3-5 strands, and even more specifically, with 5 strands.

[0021] In actual implementation, each conductor is made up of 13 single conductor wires twisted together in the same direction;

[0022] In practical implementation, using Category VI tin-plated soft copper as the conductor has the following advantages:

[0023] Firstly, Category VI tin-plated soft copper has better flexibility, smaller single wire diameter, is easier to bend, and has a longer bending life, which can increase the number of bends and service life of the cable; it also facilitates the production of finished conductors by stranding conductors in the same direction.

[0024] Secondly, the sixth type of tin-plated soft copper combined with the same-direction stranding technology can appropriately reduce the DC resistance of the conductor. The same-direction stranding reduces the strand pitch, which reduces the conductor stranding coefficient, thereby reducing the resistance.

[0025] Third, the use of stranded conductors in the same direction can effectively improve the roundness and surface quality of the stranded conductor, which helps to improve the overall performance of the conductor.

[0026] Fourth, by stranding conductors in the same direction, the outer diameter of the conductor can be reduced, which not only helps to reduce costs, but also saves about 0.8% of copper usage under the same cross-section.

[0027] Fifth, by twisting the cables in the same direction, the cable pairs have a "torsion-increasing" effect, which can make the distance between the two conductors relatively stable, thereby improving the flexibility of the cable.

[0028] Sixth, since soft conductors are non-compacted conductors, the contact resistance between individual wires is relatively high. Stranding in the same direction can effectively reduce this contact resistance, thereby improving the electrical performance of the conductor.

[0029] In this embodiment, the reinforcing component 12 includes a central reinforcing member 120 located at the center of the wire core 1, and a filling reinforcing member 121 filling between the multiple strands of the conductors 10. The multiple strands of the conductors 10 are arranged around the central reinforcing member 120 with the central reinforcing member 120 as the center, and the multiple strands of the conductors 10 are twisted together with the central reinforcing member 120.

[0030] In this embodiment, the central reinforcing member 120 is made of aramid fiber, the filling reinforcing member 121 is made of fine hemp rope, and the radius of the central reinforcing member 120 is larger than the radius of the filling reinforcing member 121.

[0031] In actual implementation, setting up reinforcement components has the following advantages:

[0032] Firstly, the central reinforcing component is made of aramid fiber. The tensile strength of aramid fiber is 5-6 times that of steel wire, its modulus is 2-3 times that of steel wire or glass fiber, its toughness is twice that of steel wire, while its weight is only about 1 / 5 that of steel wire. This high strength and high modulus enable aramid yarn to perform excellently under heavy loads and high stress.

[0033] Secondly, aramid fibers perform exceptionally well in high-temperature environments, maintaining 50% of their original strength even after a week of use at 300°C. Furthermore, meta-aramid can be used for extended periods at 200°C, while para-aramid can withstand temperatures exceeding 370°C.

[0034] Thirdly, aramid fibers are inherently flame-retardant, difficult to burn in a flame, and self-extinguishing after being removed from the flame. This makes aramid yarn an important material in fire-resistant materials and protective equipment.

[0035] Fourth, aramid fibers possess excellent electrical insulation properties, making them suitable for electrical insulation materials. For example, insulating paper made from meta-aramid fibers can withstand a breakdown voltage of up to 20 kV / mm;

[0036] Fifth, aramid fibers have low density but high strength and good abrasion resistance;

[0037] Sixth, aramid fibers have good dimensional stability and are not easily deformed under high temperature and mechanical stress;

[0038] Seventh, aramid fibers have excellent anti-aging properties and a long service life. This allows aramid yarn to maintain its performance even in long-term use environments.

[0039] In this embodiment, the material of the central reinforcing member 120 is irradiated ethylene propylene rubber extruded from aramid yarn.

[0040] In this embodiment, the insulating layer 11 is made of ethylene propylene rubber.

[0041] In practical implementation, using ethylene propylene rubber as the insulation material has the following advantages:

[0042] Firstly, ethylene propylene rubber (EPR) contains no unsaturated bonds in its main chain, thus exhibiting excellent weather resistance and ozone resistance, maintaining stability in various harsh environments. This makes it ideal for applications requiring long-term outdoor exposure.

[0043] Secondly, ethylene propylene rubber has excellent high-temperature resistance and can be used for extended periods at 130°C. Furthermore, it exhibits good resistance to a variety of chemicals, including acids, alkalis, detergents, animal and vegetable oils, alcohols, and ketones.

[0044] Thirdly, ethylene propylene rubber has good elasticity and mechanical strength, making it suitable for applications that require the ability to withstand certain stress and deformation.

[0045] In this embodiment, the sheath layer group 2 includes an inner sheath layer 20 covering the outer periphery of the core 1, a reinforcing anti-torsion layer 21 covering the outer periphery of the inner sheath layer 20, and an outer sheath layer 22 covering the outer periphery of the reinforcing anti-torsion layer 21.

[0046] In this embodiment, the thickness of the inner sheath layer 20 is less than the thickness of the outer sheath layer 22, and both the inner sheath layer 20 and the outer sheath layer 22 are made of thermoplastic polyurethane elastomer rubber.

[0047] In this embodiment, the reinforcing anti-torsion layer 21 is woven from a mixture of tin-plated copper wire and aramid fiber, wherein the tin-plated copper wire coverage is greater than 80%.

[0048] In practical implementation, strengthening the anti-torsion layer can improve the cable's bending resistance, breakage resistance, and aging resistance while ensuring the cable's flexibility. It can withstand long-term winding and dragging movements, maintain cable stability during long-stroke winding and unwinding, prevent torsion and spiraling, and resist damage to the cable caused by tension during drum winding and resist damage to the cable's internal structure caused by torsional spiraling.

[0049] This application provides a novel wear-resistant and pressure-resistant drag chain cable, which includes a conductor core and a sheath layer covering the outer periphery of the conductor core. The conductor core includes multiple conductors, an insulation layer covering the outer periphery of each conductor, and reinforcing components that are staggered with each conductor. The multiple conductors and reinforcing components are twisted together. By setting reinforcing components inside the conductor core, the mechanical strength of the conductor core is effectively improved. When the drag chain cable is wound and unwound in a reel system and frequent winding and unwinding operations are performed, the reinforcing components inside the conductor core enhance the overall mechanical strength of the cable, so that the drag chain cable will not experience mechanical fatigue after frequent reciprocating winding operations, avoiding quality problems such as conductor core breakage, sheath cracking, and aging. It can effectively extend the service life of the drag chain cable and has the advantages of simple structure, low implementation cost, and easy promotion and implementation.

[0050] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel wear-resistant and pressure-resistant drag chain cable, characterized in that, The device includes a wire core (1) and a sheath layer group (2) covering the outer periphery of the wire core (1). The wire core (1) includes multiple conductors (10), an insulation layer (11) covering the outer periphery of each conductor (10), and reinforcing components (12) staggered with each conductor (10). The multiple conductors (10) are twisted together with the reinforcing components (12). The sheath layer group (2) includes an inner sheath layer (20) covering the outer periphery of the core (1), a reinforcing anti-torsion layer (21) covering the outer periphery of the inner sheath layer (20), and an outer sheath layer (22) covering the outer periphery of the reinforcing anti-torsion layer (21). The thickness of the inner sheath layer (20) is less than the thickness of the outer sheath layer (22), and both the inner sheath layer (20) and the outer sheath layer (22) are made of thermoplastic polyurethane elastomer rubber.

2. The novel wear-resistant and pressure-resistant drag chain cable according to claim 1, characterized in that, The conductor (10) is made of multiple strands of conductor wire (13) twisted together, and the material of the conductor wire (13) is tin-plated soft copper of type VI.

3. The novel wear-resistant and pressure-resistant drag chain cable according to claim 1, characterized in that, The reinforcing component (12) includes a central reinforcing member (120) located at the center of the wire core (1) and a filling reinforcing member (121) filled between the multiple strands of the conductor (10). The multiple strands of the conductor (10) are arranged around the central reinforcing member (120) with the central reinforcing member (120) as the center, and the multiple strands of the conductor (10) are twisted together with the central reinforcing member (120).

4. The novel wear-resistant and pressure-resistant drag chain cable according to claim 3, characterized in that, The central reinforcement (120) is made of aramid fiber, and the filling reinforcement (121) is made of fine hemp rope. The radius of the central reinforcement (120) is larger than the radius of the filling reinforcement (121).

5. A novel wear-resistant and pressure-resistant drag chain cable according to claim 3, characterized in that, The central reinforcing member (120) is made of irradiated ethylene propylene rubber extruded from aramid yarn.

6. The novel wear-resistant and pressure-resistant drag chain cable according to claim 1, characterized in that, The insulating layer (11) is made of ethylene propylene rubber.

7. The novel wear-resistant and pressure-resistant drag chain cable according to claim 1, characterized in that, The reinforced anti-torsion layer (21) is woven from a mixture of tin-plated copper wire and aramid fiber, wherein the tin-plated copper wire coverage is greater than 80%.

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