Manufacturing method of bending-resistant drag chain cable

A drag chain cable and the technology of the manufacturing method are applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., which can solve problems affecting work progress and efficiency, increasing costs, etc., so as to prolong the service life, improve the bending fatigue life, Effect of Good Bending Properties

Pending Publication Date: 2021-06-04
广东环威电线电缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not only does it increase the cost, but frequent replacement also greatly affects the work schedule and efficiency

Method used

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  • Manufacturing method of bending-resistant drag chain cable
  • Manufacturing method of bending-resistant drag chain cable
  • Manufacturing method of bending-resistant drag chain cable

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "...

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Abstract

The invention discloses a manufacturing method of a bending-resistant drag chain cable. The manufacturing method comprises the following steps: twisting a plurality of metal copper wires into a compound stranded conductor; uniformly extruding an insulating material on the outer surface of the compound stranded conductor to obtain an insulating wire core; twisting a plurality of insulating wire cores into a cable, and placing a filling rope in the center of the cable; filling a filling material around the cable to form a filling layer; and extruding an outer sheath material on the outer side of the filling layer to form an outer sheath. By adopting compound stranding, the bending resistance of the compound stranded conductor can be obviously improved, and the structural stability of the compound stranded conductor can be maintained, so that the uniform stress of the compound stranded conductor during bending is ensured, the mechanical stress concentration is avoided, and the bending fatigue life of the compound stranded conductor is greatly prolonged. The filling rope is arranged at the center of the cable, and when the cable is bent and dragged, because the outer sheath and the filling rope bear main pulling force, the structure is beneficial to dispersing bending stress, and local insulation and stress concentration of the compound stranded conductor are avoided.

Description

technical field [0001] The invention relates to the field of drag chain cable production, and more specifically refers to a manufacturing method of a bending-resistant drag chain cable. Background technique [0002] Drag chain cables are widely used in complex movements, and there are also great requirements for the service life of such drag chain cables. During the entire torsional movement of the towline cable, the core wire, bundle stranding, shielding and sheath materials must meet the extrusion force and radial pressure changes generated during bending. Therefore, different structural elements, such as viscose fibers, are common in highly flexible robot cables to withstand their torsional forces. Twisted drag chain cables also have special demands on the braided shield. Because the special PTFE sliding film is used, it means that the shielding structure has been torsionally optimized, which compensates for the movement error to a certain extent. For twistable bus cab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/02
CPCH01B13/02
Inventor 张清悦张海涛彭志强杨敬纯卢薇
Owner 广东环威电线电缆股份有限公司
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