Flexible trailing cable for harbor crane

A port crane and flexible cable technology, which is applied in the field of towing flexible cables, can solve the problems of flexible rubber sheath cables that are easy to break when bending, and achieve the effect of long bending life

Inactive Publication Date: 2014-05-21
湖北龙腾红旗电缆(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a trailing flexible cable for port cranes, which can solve the problem that the existing rubber-sheathed flexible c...

Method used

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  • Flexible trailing cable for harbor crane
  • Flexible trailing cable for harbor crane

Examples

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Embodiment Construction

[0017] like figure 1 As shown, the present invention includes an insulated wire core, the insulated wire core is wrapped with an insulating reinforcing layer 4, a plurality of insulated wire cores constitute a cable core, and the cable core is extruded and wrapped with an inner sheath layer 5, and the inner sheath layer 5 is wrapped in turn. There are inner sheath reinforcement layers 6 and outer sheath layers 7 .

[0018] The insulated wire core is composed of a copper conductor 1 , a wrapping tape 2 and an insulating layer 3 wrapped around the copper conductor 1 .

[0019] The insulating reinforcing layer 4 is a high-density aramid yarn braided layer.

[0020] The inner sheath reinforcement layer 6 is a low-density aramid yarn braided layer.

[0021] The inner sheath layer 5 is a polyurethane inner sheath layer.

[0022] like figure 2 Shown, the production technological process of the present invention is as follows:

[0023] Drawing, tinning, twisting, wrapping isolat...

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PUM

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Abstract

A flexible trailing cable for a harbor crane comprises insulating wire cores, wherein the insulating wire cores are wrapped by a reinforced insulating layer, multiple insulating wire cores form a cable core, the cable core is wrapped by an inner sheath layer in an extruded mode, and the inner sheath layer is sequentially wrapped by an inner sheath reinforcing layer and an outer sheath reinforcing layer. Due to the fact that the flexible trailing cable for the harbor crane adopts the inner sheath layer formed through direct tight-pressing, extrusion and filling and is provided with the reinforced insulating layer and the inner sheath layer reinforcing layer, the bending resistance life is long, the core cannot be bent and break for 8000 thousands of times, and the flexible trailing cable has the oil resistance, tearing resisting, oil resistance, weather resistance, oil sludge resistance, water proofing, flame retardance performance and the like and is suitable for crane devices of domestic and overseas ports.

Description

technical field [0001] The invention relates to a flexible trailing cable, in particular to a flexible trailing cable for port cranes. Background technique [0002] The internal core structure of the rubber sheathed flexible cable is unstable, and the cable is mostly filled with additional glass fiber or hemp rope. This is especially true for flexible cables with a common structure of "3 big and 1 small". This makes the stranded wire core deformed during the stress process of the cable in the port crane operation, and the outer sheath is relatively soft, the wire core will protrude, resulting in uneven appearance of the cable, both physical and electrical properties. suffered a lot. [0003] With the increasingly established trend of economic globalization and the strengthening of the pattern that the world's bulk commodity trade still mainly relies on ports, the construction of ports around the world has given birth to the modernization of port machinery. Among them, hig...

Claims

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Application Information

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IPC IPC(8): H01B7/17H01B7/18H01B7/02H01B7/04H01B13/00
Inventor 胡涛赵云孙勇卫建良张忠翠王雪
Owner 湖北龙腾红旗电缆(集团)有限公司
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