A tensile resistant drum cable for high power port machinery conveyor

Abstract

A kind of anti-tension reel cable for high-power port machine conveying equipment, characterized by comprising four power line units, ground wire unit, two signal control line units, braided shielding layer, reinforcing core, three anti-tension filling lines, tape layer, shaped inner sheath and wear-resistant outer sheath;The cable structure is simple in design, frequent bending movement, direct contact with rough surface, higher wear resistance, good tensile, pressure and torsion resistance of the cable, the built-in unit of the cable will not displace or deform, the minimum bending radius of the cable can reach 8D, the temperature resistance interval is-50℃-+80℃, can meet the requirements of informatization and intelligentization, good salt and corrosion resistance, can be widely used in port, steel, mining, packaging, logistics and other frequent cable and cable reel system, long service life of the cable, can meet the needs of high-power port machine conveying equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of port machinery cable technology, and in particular to a tensile-resistant drum cable for high-power port machinery conveying equipment. Background Technology

[0002] Currently, with the development of the port industry, the main problems faced by reel cables used in port machinery transportation equipment are:

[0003] 1. Existing cable structures have limited functions, while the port industry is developing and ports are becoming increasingly information-based and intelligent. In order to meet the needs of information and intelligence, port machinery and transportation equipment lines can only be laid repeatedly with corresponding functions, resulting in lengthy projects, high investment costs, and poor convenience of subsequent maintenance.

[0004] 2. As the frequency of use of port machinery and transportation equipment increases, there are more stringent requirements for the ability of reel cables to withstand repeated bending and their tensile strength.

[0005] 3. Coastal working environments place higher demands on the salt resistance and corrosion resistance of cables;

[0006] In summary, in order to improve the utilization efficiency of port machinery and transportation equipment, and thus improve the overall operational efficiency of the port, there is an urgent need for a type of drum cable that can meet the needs of port informatization and intelligentization, has better resistance to repeated bending and tensile strength, and better resistance to salt corrosion. Summary of the Invention

[0007] This utility model addresses the problems mentioned in the background art by providing a tensile-resistant drum cable for high-power port machinery transportation equipment, which can meet the needs of port informatization and intelligentization, has better resistance to repeated bending and tensile strength, and better salt corrosion resistance.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A tensile-resistant drum cable for high-power port machinery conveying equipment is characterized by comprising four power line units, a ground wire unit, two signal control line units, a braided shielding layer, reinforcing cores, three tensile-resistant filler wires, a wrapping layer, a shaped inner sheath, and a wear-resistant outer sheath.

[0010] Each of the aforementioned power line unit and ground line unit includes a conductor and an insulation layer. The conductor is an annealed soft copper conductor with a diameter of 0.2 mm, which is formed by stranding the strands together.

[0011] The insulation layer of the power line unit is made of ethylene propylene rubber insulation material;

[0012] The insulating layer of the grounding unit is a semi-conductive insulating material.

[0013] Each of the aforementioned signal control line units comprises two twisted and then secured with insulating wire cores. The conductor of the signal control line unit is a single solid annealed soft copper alloy material, and the insulation material of the signal control line unit is ethylene propylene rubber insulation material.

[0014] Each of the power line units and the signal control line units is further provided with a braided shielding layer outside the insulation layer, which is made of copper wire.

[0015] The four power line units and ground line units are twisted together with the reinforcing core as the central axis to form a cable core assembly. The reinforcing core is made of several stress-relief galvanized steel wires with a diameter of 0.2mm twisted together.

[0016] The three tensile filler wires are made of solid rubber material. The three tensile filler wires and the two signal control wire units are filled in the outer gap of the power wire unit and the ground wire unit, filling the cable core assembly into a round shape, and then the wrapping layer is used to tie it tightly into a complete cable core assembly.

[0017] The outer sheath of the wrapping layer is provided with a shaped inner sheath, which is made of rubber elastomer material. The shaped inner sheath is extruded and coated on the wrapping layer, filling the surface of the cable core assembly and completely filling the gaps between each unit. The wear-resistant outer sheath and the shaped inner sheath are made by double-layer co-extrusion, ensuring that the inner sheath penetrates into the gaps in the cable core, preventing displacement of each unit of the cable core. The double-layer co-extrusion process forms an integral movement inside and outside when bending, preventing bulging and core breakage.

[0018] A further aspect of this invention is that, in order for the cable conductor to withstand repeated bending and movement, the total strand diameter multiple of the conductor in the cable core assembly is less than or equal to 10, and the cable pitch does not exceed 16D.

[0019] A further aspect of this invention is that the conductor elongation of the insulated core of each signal control line unit is 25%-32% to prevent the conductor's mechanical strength from decreasing and causing the conductor core to break.

[0020] A further aspect of this invention is that the cross-sectional size of the reinforcing wire core is related to the tensile strength of the equipment, and the preferred cross-sectional size is generally 10mm. 2 -25mm 2 .

[0021] The beneficial effects of this utility model are: the cable has a simple structural design, and its wear resistance is higher when it is in frequent bending and movement and in direct contact with rough surfaces. The cable has good tensile, compressive and torsional resistance. The built-in unit of the cable will not be displaced or deformed. The minimum bending radius of the cable can reach 8D. The temperature range is -50℃ to +80℃, which can meet the requirements of informatization and intelligentization. It has good salt and corrosion resistance and can be widely used in reel systems with frequent cable laying and winding in ports, steel, mining, packaging, logistics and other industries. The cable has a long service life and can meet the needs of high-power port machinery transportation equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0024] like Figure 1 As shown, a tensile-resistant drum cable for high-power port machinery conveying equipment includes four power line units 1, a ground wire unit 2, two signal control line units 3, a braided shielding layer 4, a reinforcing core 5, three tensile-resistant filler wires 6, a wrapping layer 7, a shaped inner sheath 8, and a wear-resistant outer sheath 9.

[0025] Each of the power line unit 1 and ground line unit 2 includes a conductor and an insulation layer. The conductor is an annealed soft copper conductor with a diameter of 0.2 mm, which is formed by stranding the strands together.

[0026] The insulation layer of the power line unit 1 is made of ethylene propylene rubber insulation material;

[0027] The insulating layer of the ground wire unit 2 is a semi-conductive insulating material;

[0028] Each of the signal control line units 3 comprises two twisted insulated wire cores bound together with a strapping tape. The conductor of the signal control line unit 3 is a single solid annealed soft copper alloy material, and the insulation material of the signal control line unit 3 is ethylene propylene rubber insulation material.

[0029] Each of the power line unit 1 and the signal control line unit 3 is further provided with a braided shielding layer 4 outside the insulation layer, which is made of copper wire.

[0030] The four power line units 1 and ground line units 2 are twisted together with the reinforcing core 5 as the central axis to form a cable core assembly. The reinforcing core 5 is made of several stress-relief galvanized steel wires with a diameter of 0.2mm twisted together.

[0031] The three tensile filler wires 6 are made of solid rubber material. The three tensile filler wires 6 and the two signal control wire units 3 are filled in the outer gap between the power wire unit 1 and the ground wire unit 2, filling the cable core assembly into a round shape and then being tied tightly by the wrapping layer 7 at intervals to form a complete cable core assembly.

[0032] The outer sheath 7 of the cable tape layer is provided with a shaped inner sheath 8, which is made of rubber elastomer material. The shaped inner sheath 8 is extruded and covered on the cable tape layer 7, filling the surface of the cable core assembly and completely filling the gaps between each unit. The wear-resistant outer sheath 9 and the shaped inner sheath 8 are made by double-layer co-extrusion, which ensures that the inner sheath penetrates into the gaps of the cable core and prevents the displacement of each unit of the cable core. The double-layer co-extrusion means that the inner and outer sheaths move as a whole when bending, and there will be no bulging or core breakage.

[0033] In order for the cable conductor to withstand repeated bending and movement, the total strand diameter multiple of the conductor in the cable core assembly shall be less than or equal to 10, and the cable pitch shall not exceed 16D.

[0034] Each of the aforementioned signal control line units 3 has an insulated core conductor elongation of 25%-32% to prevent the conductor's mechanical strength from decreasing and causing core breakage.

[0035] The cross-sectional size of the reinforcing core 5 is related to the tensile strength of the equipment, and the preferred cross-sectional size is 10mm. 2 -25mm 2 .

Claims

1. A tensile-resistant drum cable for high-power port machinery conveying equipment, characterized in that... It includes four power line units, a ground wire unit, two signal control line units, a braided shielding layer, a reinforcing core, three tensile filler wires, a wrapping layer, a shaping inner sheath, and a wear-resistant outer sheath; Each of the aforementioned power line unit and ground line unit includes a conductor and an insulation layer. The conductor is an annealed soft copper conductor with a diameter of 0.2 mm, which is formed by stranding the strands together. The insulation layer of the power line unit is made of ethylene propylene rubber insulation material; The insulating layer of the grounding unit is a semi-conductive insulating material. Each of the aforementioned signal control line units comprises two twisted and then secured with insulating wire cores. The conductor of the signal control line unit is a single solid annealed soft copper alloy material, and the insulation material of the signal control line unit is ethylene propylene rubber insulation material. Each of the power line units and the signal control line units is further provided with a braided shielding layer outside the insulation layer, which is made of copper wire. The four power line units and ground line units are twisted together with the reinforcing core as the central axis to form a cable core assembly. The reinforcing core is made of several stress-relief galvanized steel wires with a diameter of 0.2mm twisted together. The three tensile filler wires are made of solid rubber material. The three tensile filler wires and the two signal control wire units are filled in the outer gap of the power wire unit and the ground wire unit, filling the cable core assembly into a round shape, and then the wrapping layer is used to tie it tightly into a complete cable core assembly. The outer sheath of the wrapping layer is provided with a shaped inner sheath, which is made of rubber elastomer material. The shaped inner sheath is extruded and coated on the wrapping layer, filling the surface of the cable core assembly and completely filling the gaps between each unit. The wear-resistant outer sheath and the shaped inner sheath are made by double-layer co-extrusion, ensuring that the inner sheath penetrates into the gaps in the cable core, preventing displacement of each unit of the cable core. The double-layer co-extrusion process forms an integral movement inside and outside when bending, preventing bulging and core breakage.

2. The tensile-resistant drum cable for high-power port machinery conveying equipment as described in claim 1, characterized in that: The total strand diameter multiple of the conductors in the cable core assembly is less than or equal to 10, and the cable pitch does not exceed 16D.

3. A tensile-resistant reel cable for high-power port machinery conveying equipment as described in claim 1 or 2, characterized in that... The insulated conductor elongation of each of the aforementioned signal control line units is 25%-32%.

4. A tensile-resistant reel cable for high-power port machinery conveying equipment as described in claim 1 or 2, characterized in that... The cross-sectional area of ​​the reinforcing wire core is 10mm. 2 -25mm 2 .

5. A tensile-resistant reel cable for high-power port machinery conveying equipment as described in claim 3, characterized in that... The cross-sectional area of ​​the reinforcing wire core is 10mm. 2 -25mm 2 .

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