Light self-supporting tensile power control cableway composite cable

Abstract

A light self-supporting tensile power control cableway composite cable is characterized by comprising five power wire cores, a control unit, a tensile unit, a filling rope, a wrapping tape and a sheath. The sheath comprises a cavity A and a cavity B, the cavity A is extruded on the cable core assembly, and the cavity B is extruded on the tensile unit. A double-cavity sheath structure is adopted, an independent tensile unit is arranged, a thick and heavy armor layer does not need to be arranged according to the diameter of the cable, the specific gravity of the cable is greatly reduced, laying installation and later maintenance are relatively convenient, the electrical performance of the cableway cable can be met, meanwhile, an extensible control function can be provided, and repeated laying of lines is not needed; the building cost is low, ultraviolet resistance and low temperature resistance are good, the service life is long, and application and popularization value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cableway power cable technology, and in particular to a lightweight self-supporting tensile power control cableway composite cable. Background Technology

[0002] Currently, the power cables used in sightseeing cableways generally employ steel wire armor structures due to the large span between the cable support brackets. The armor layer also has tensile load-bearing capabilities. However, these cables are relatively heavy, requiring large traction and hoisting devices during installation. Furthermore, the cable support structure has high load-bearing requirements, resulting in relatively high construction costs. Moreover, since they are often built at high altitudes, the cables also have stringent requirements for UV resistance and low-temperature resistance, leading to short service life, high maintenance costs, and limited functionality. The need for repeated laying of control lines further increases the load on the support brackets, severely hindering the construction and promotion of sightseeing cableways. Summary of the Invention

[0003] This utility model addresses the problems mentioned in the background art by providing a lightweight, self-supporting, tensile-resistant power control cableway composite cable. While meeting the electrical performance requirements of cableways, the cable has a low specific gravity, making it relatively easy to lay and maintain, with low construction costs, and good resistance to ultraviolet radiation and low temperatures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lightweight, self-supporting, tensile-resistant, power-controlled cableway composite cable is characterized by comprising five power conductors, a control unit, a tensile unit, a filler rope, a wrapping tape, and a sheath.

[0006] Each of the power wire cores includes a conductor and an insulation layer, wherein the conductor is formed by stranding and pressing together several annealed copper conductors, and the insulation layer is made of cross-linked polyethylene material;

[0007] The power cores are evenly distributed around the circumference of the cable core, and the control unit is located at the center of the internal gap of the power cores.

[0008] The control unit consists of several control wire cores and a shielding sleeve configured according to the control function. Each control wire core contains a control wire with an insulating layer, and the shielding sleeve covers the control wire core as a whole.

[0009] The filler rope has a fan-shaped cross-section and fills the gap between the outer surfaces of the power wire cores to make them round.

[0010] The wrapping tape will tightly bind the filled, rounded wrapping into the cable core assembly;

[0011] The sheath is made of low-temperature resistant high-molecular polyethylene sheath material. The sheath includes cavity A and cavity B, which are connected as a whole by connecting ribs. Cavity A is extruded on the cable core assembly, and cavity B is extruded on the tensile unit. The outer surface of the sheath is also coated with a carbon black layer for absorbing ultraviolet rays.

[0012] The tensile unit is made of several aluminum alloy wires twisted together according to the tensile strength requirements.

[0013] A further aspect of this invention is that, depending on the dynamic load, the conductor cross-sectional area of ​​the power wire core is 50-120 mm². 2 .

[0014] A further aspect of this invention is that, based on the control power requirements, the cross-sectional area of ​​the control conductor core of the control unit is 0.75-1.5 mm². 2 .

[0015] A further aspect of this invention is that, according to tensile strength requirements, the cross-sectional area of ​​the stranded aluminum alloy wires in the tensile unit is 10-50 mm². 2 .

[0016] The beneficial effects of this utility model are: it adopts a double-cavity sheath structure and sets up an independent tensile unit, eliminating the need for a thick armor layer based on the cable diameter, significantly reducing the cable weight, making laying, installation, and subsequent maintenance more convenient. It can meet the electrical performance requirements of cableway cables while providing expandable control functions without the need for repeated line laying, resulting in low construction costs, good UV resistance and low-temperature resistance, long service life, and significant application value. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Detailed Implementation

[0018] 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

[0019] like Figure 1 As shown, a lightweight self-supporting tensile-resistant power control cableway composite cable includes five power cores, a control unit, a tensile unit, a filler rope 5, a wrapping tape 6, and a sheath 7.

[0020] Each of the power wire cores includes a conductor 1 and an insulation layer 2. The conductor 1 is formed by stranding and pressing together several annealed copper conductors, and the insulation layer 2 is made of cross-linked polyethylene material.

[0021] The power cores are evenly distributed around the circumference of the cable core, and the control unit is located at the center of the internal gap of the power cores.

[0022] The control unit consists of several control wire cores 3 and a shielding sleeve 4 configured according to the control function. Each control wire core 3 contains a control wire with an insulating layer, and the shielding sleeve 4 covers the control wire core as a whole.

[0023] The filler rope 5 has a fan-shaped cross-section and fills the gap between the outer surfaces of the power wire cores to make them round.

[0024] The wrapping tape 6 tightly wraps the power core, control unit, tensile unit and filler rope into a cable core assembly;

[0025] The sheath 7 is made of low-temperature resistant high-molecular polyethylene sheath material. The sheath 7 includes cavity A71 and cavity B72. Cavity A71 and cavity B72 are connected as a whole by connecting ribs. Cavity A71 is extruded on the cable core assembly, and cavity B72 is extruded on the tensile unit. The outer surface of the sheath 7 is also coated with a carbon black layer for absorbing ultraviolet rays.

[0026] The tensile unit is made of several aluminum alloy wires twisted together according to the tensile strength requirements.

[0027] Depending on the dynamic load, the cross-sectional area of ​​conductor 1 of the power wire core is 50-120 mm². 2 .

[0028] According to the control power requirements, the cross-sectional area of ​​conductor 3 of the control wire in the control unit is 0.75-1.5mm². 2 .

[0029] According to the tensile strength requirements, the cross-sectional area of ​​the aluminum alloy wires 8 in the tensile unit after stranding is 10-50mm². 2 .

Claims

1. A lightweight, self-supporting, tensile force control cable for a cableway, characterized in that It comprises five power line cores, a control unit, a tensile unit, filling ropes, a wrapping tape and a sheath. Each of the power line cores comprises a conductor and an insulation layer, the conductor is tightly pressed by several annealed copper conductors, and the insulation layer is made of cross-linked polyethylene material. The power line cores are uniformly distributed around the circumference of the cable core, and the center of the internal gap of the power line core is provided with the control unit. The control unit is composed of several control line cores and a shielding sleeve according to the control function, each control line core contains a control conductor with an insulation layer, and the shielding sleeve covers the control line cores as a whole. The filling ropes are fan-shaped in cross section, and the filling ropes fill the gaps between the outer surfaces of the power line cores. The wrapping tape tightly wraps the filling ropes to form a cable core assembly. The sheath is a low-temperature-resistant high-molecular polyethylene sheath material, the sheath comprises a cavity A and a cavity B, the cavity A and the cavity B are connected as a whole through a connecting rib, the cavity A is extruded on the cable core assembly, the cavity B is extruded on the tensile unit, and the outer surface of the sheath is coated with a carbon black layer for absorbing ultraviolet rays. The tensile unit is twisted by several aluminum alloy wires according to the tensile strength requirement.

2. A lightweight, self-supporting, pull-resistant, force-controlled cableway composite cable according to claim 1, characterized in that The conductor section area of the power line core is 50-120 mm 2 .

3. A lightweight, self-supporting, tensile-resistant, power control cable of the type defined in claim 1 or 2, characterised in that The control line core conductor section area of the control unit is 0.75-1.5mm 2 .

4. A lightweight, self-supporting, tensile-resisting, power cable composite cable according to claim 1 or 2, characterized in that The cross-sectional area of the aluminum alloy wire in the tensile unit after stranding is 10-50 mm 2 .

5. A lightweight, self-supporting, pull-resistant, power control cable composite cable according to claim 3, characterized in that The cross-sectional area of the aluminum alloy wire in the tensile unit after stranding is 10-50 mm 2 .

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