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Special flexible cable for shield tunneling machine and manufacturing method of special flexible cable

A flexible cable and shield machine technology, applied in the direction of cable/conductor manufacturing, power cables, insulated cables, etc., can solve the problems of unusable and damaged cables, achieve increased stability, balanced force, and increased bending resistance Effect

Pending Publication Date: 2019-06-25
四川川东电缆有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the cable is subjected to various forces such as bending, torsion, extrusion, and impact during use, it is easy to cause broken cores, deformation, and damage to the insulated wire core, making the cable unusable.

Method used

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  • Special flexible cable for shield tunneling machine and manufacturing method of special flexible cable
  • Special flexible cable for shield tunneling machine and manufacturing method of special flexible cable

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Embodiment

[0034] Such as Figure 1 to Figure 2 As shown, this embodiment provides a special flexible cable for shield machines. It should be noted that the serial numbers such as "first", "second", and "third" in this embodiment are only used to distinguish similar components , cannot be understood as a specific limitation on the scope of protection. In addition, directional terms such as "bottom", "top", and "side edge" in the present embodiment are described based on the drawings.

[0035] The special flexible cable for the shield machine includes a cable core, a thin non-woven fabric 12 surrounding the cable core, a reinforcing layer 11 surrounding the thin non-woven fabric 12, and an outer sheath surrounding the reinforcing layer 11 6; wherein, the cable core includes a saddle-shaped positioning cushion core 8 arranged in the center, which are respectively close to the three concave arc-shaped surfaces of the saddle-shaped positioning cushion core 8, and are three power cores arran...

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Abstract

The invention discloses a special flexible cable for a shield tunneling machine. The special flexible cable comprises a cabling wire core, thin non-woven fabric surrounding the cabling wire core, a reinforcing layer surrounding the thin non-woven fabric, and an outer sheath surrounding the reinforcing layer, wherein the cabling wire core comprises a saddle-shaped positioning pad core arranged at the center, three power wire cores which are tightly attached to the arc-shaped surface of the saddle-shaped positioning pad core and evenly distributed in the circumferential direction, and three grounding wire cores which are arranged in three external gaps formed by the three power wire cores. The thin non-woven fabric is arranged around the three power wire cores and the three grounding wire cores. The invention further provides a manufacturing method of the special flexible cable for the shield tunneling machine. The cable has excellent tensile strength, bending resistance, extrusion resistance, wear resistance, moving torsion resistance and repeated bending and winding performance, and is long in service life.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a special flexible cable for a shield machine and a manufacturing method thereof. Background technique [0002] Special cables for shield tunneling heavy equipment in open-pit mines and tunnel projects such as subways, railways, highways, municipalities, and hydropower. Because of the special, changeable, and harsh working environment, the cables are required to have high wear resistance, bending resistance, and extrusion resistance. , Tear resistance, small bending radius, anti-movement torsion, oil resistance, softness, tensile strength, tear resistance, low temperature resistance and small outer diameter. At present, there are no national standards and industry standards at home and abroad, and imported products are often used. [0003] Because the cable is subjected to various forces such as bending, torsion, extrusion, and impact during use, it is easy to cause broken co...

Claims

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Application Information

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IPC IPC(8): H01B7/04H01B7/18H01B9/00H01B9/02H01B13/00
CPCY02A30/14
Inventor 李永辉李章学邓一权吴方权刘长江
Owner 四川川东电缆有限责任公司
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