Spring cable

A spring cable, spring wire technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of anti-side pressure, anti-bending flexibility to be improved, anti-side pressure, bending flexibility is not ideal, affecting the performance of optical cables, etc., to achieve production. The method is simple and easy to learn, has a wide range of applications, and has the effect of low cost

Inactive Publication Date: 2012-07-18
国网山东东阿县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optical cables in the prior art usually use composite aluminum strips, corrugated steel strips, etc. to strengthen the mechanical properties of optical cables. The biggest disadvantage of this strengthening method in use is that it is not ideal in terms of lateral pressure resistance and bending flexibility. In the case of repeated torsion, the optical cable is easy to crack, which affects the performance of the optical cable
In addition, in the communication industry standard YD / T769-2010 of the People's Republic of China, optical cables such as GYXTS and GYXTY are also mentioned. , the role of armored protective optical cable, but its anti-lateral pressure, anti-bending softness needs to be improved

Method used

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Experimental program
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Effect test

Embodiment 1

[0032] please see Figure 1 to Figure 5 , a spring cable, comprising a center beam tube 3 located in the center and hollow inside, a plurality of optical fibers 4 located in the inner hollow part of the center beam tube; it is characterized in that the center beam tube has a spring armor layer 2 outside, and the spring The armor layer is close to the outer wall of the central beam tube, and the spring wires of adjacent layers in the spring armor layer are close to each other; the spring armor layer is extruded with a sheath layer 1 .

[0033] The spring cable described above is characterized in that the central bundle tube is made of polybutylene terephthalate

[0034] The above-mentioned spring cable is characterized in that the optical fiber is a single-mode fiber or a multi-mode fiber.

[0035] Furthermore, the spring cable mentioned above is characterized in that the optical fiber is G652 type or G655 type or G657 type or A1a type or A1b type.

[0036] The above-ment...

Embodiment 2

[0042] please see Figure 6 and Figure 8 , and combined with Figure 1 to Figure 5, a device for forming a spring armor layer on a spring cable, is characterized in that: it includes a bundle tube pan 51 wound with a central beam tube 3, a steel wire pan 52 wound with a spring wire 21, a spring The armor layer forms the mold 53; the bundle tube pan is rotatably fixed on the first fixed frame 511 through the first shaft 513, and the steel wire pan is rotatably fixed on the second fixed frame 521 through the second shaft 523; the first The fixing frame is fixed on the foundation, and the second fixing frame is fixed on the foundation. The first fixing frame and the second fixing frame are parallel; On the upper edge of the bundle tube tray; the spring armor layer forming mold is located in front of the bundle tube tray. In this device, the central bundle tube is released from the bundle tube tray and passes through the spring armor layer to form the center hole of the mold, ...

Embodiment 3

[0045] please see Figure 7 and Figure 9 , and combined with Figure 1 to Figure 5 , a device for forming a spring armor layer on a spring cable, is characterized in that: it includes a bundle tube pan 51 wound with a central beam tube 3, a steel wire pan 52 wound with a spring wire 21, a spring The armored layer forms the mold 53; the beam tube pan is rotatably fixed on the first fixed frame 511 through a shaft, and the steel wire pan is fixed on the twisted cage 522 and can rotate around the fixed shaft to release the spring wire; the first fixed frame is fixed On the foundation, the cage is rotatable around the axis 31 of the central tube; the spring armor forming mold is located in front of the tube pan. In this device, the central bundle tube is released from the bundle tube tray and passes through the spring armor layer to form the center hole of the mold, and is pulled forward; at the same time, the spring wire is released from the steel wire tray and enters the spri...

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PUM

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Abstract

The invention belongs to the technical field of cables, and particularly relates to a spring cable. The spring cable comprises a hollow central beam tube which is positioned in the center and a plurality of optical fibers which are positioned in the hollow part of the central beam tube. The spring cable is characterized in that the external of the central beam tube is provided with a spring armor layer which clings to the outer wall of the central beam tube; spring wires of adjacent layers in the spring armor layer are close to each other; and the spring armor layer is externally extruded with a jacket layer. The invention also discloses a device for forming the spring armor layer. Protected by the spring armor layer, the spring cable has excellent resistances to tensile strain, to side pressure and to bending and the spring cable is more flexible and has a wider application range; and the device is simple and reliable, the cost is low and the production method is simple and easy to learn.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a cable that adopts spring armor to enhance lateral pressure resistance and twist resistance; and a device for forming a spring armor layer. Background technique [0002] In the prior art, optical cables have been widely used in various industries, especially in the technical field of optical signal transmission. Optical cables in the prior art usually use composite aluminum strips, corrugated steel strips, etc. to strengthen the mechanical properties of optical cables. The biggest disadvantage of this strengthening method in use is that it is not ideal in terms of lateral pressure resistance and bending flexibility. In the case of repeated torsion, the optical cable is easy to crack, which affects the performance of the optical cable. In addition, in the communication industry standard YD / T769-2010 of the People's Republic of China, optical cables such as GYXTS and GYXTY are als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 沈群华
Owner 国网山东东阿县供电公司
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