CN217955503U

CN217955503U - Cable for drag chain

Info

Publication number: CN217955503U
Application number: CN202222399746.7U
Authority: CN
Inventors: 何旭光; 王海新
Original assignee: Suzhou Xunyu Electronics Co ltd
Current assignee: Suzhou Xunyu Electronics Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-02
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a cable for tow chain, it includes the wire that a plurality of roots set up side by side, and is whole the outer cladding of wire protective layer, the wire includes the heart yearn of being made by silver-plated copper, every the outer equal cladding insulating layer of heart yearn, two constitute the even stranded conductor of circularity after the heart yearn adds a plurality of tensile wires transposition, the stranded conductor sets up a winding layer of being made by the ETFE film outward, the outer cladding of winding layer has the shielding layer that the metal wire woven and form. The beneficial effects of the utility model are that: the invention has the advantages of high and low temperature resistance, light weight, thinness, wear resistance, tensile resistance, dust free, static resistance, small volume and the like, and the protective layer formed by extruding is firm and compact, does not exhaust and can be used in vacuum environment. The method is suitable for high-end industries such as aviation, aerospace, war industry, medical treatment, semiconductors and the like.

Description

Cable for drag chain

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a cable for tow chain.

Background

A tow chain, also known as a Cable carrier, is a device for binding cables or wires or an air pressure pipe and an oil pressure pipe to facilitate rotation and movement thereof.

Cables for drag chains need to be light, thin, flexible, and have good stretch resistance and bending resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel light, thin, flexible cable for tow chain.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a cable for drag chain, its includes the wire that a plurality of sets up side by side, all the outer cladding of wire is a protective layer, the wire includes the heart yearn of being made by silver-plated copper, every the outer equal cladding of heart yearn is an insulating layer, two constitute the even stranded conductor of circularity after the heart yearn adds the transposition of a plurality of tensile wires, the stranded conductor sets up a winding layer of being made by the ETFE film outward, the outer cladding of winding layer has the metallic wire to weave the shielding layer that forms.

Preferably, the winding layer is formed by obliquely wrapping at least two to three layers of ETFE films in a positive and negative staggered manner.

Preferably, the winding layer is formed by wrapping three layers of ETFE films, wherein the first layer is wrapped obliquely in a forward rotating direction, the second layer is wrapped obliquely in a reverse rotating direction, and the third layer is wrapped obliquely in the forward rotating direction.

Preferably, the shielding layer is formed by wrapping the winding layer with a metal mesh formed by winding and weaving silver-plated copper wires.

Preferably, 10 to 14 wires are included and arranged in parallel in a row.

Preferably, the protective layer is made of a PTFE composite.

Preferably, the leads comprise the core wires formed by twisting 25 copper wires with the diameter of 0.08mm together, and the copper wires are plated with silver.

Preferably, the anti-drawing thread is a thread made of cotton thread or Kevlar.

The utility model has the advantages that: according to the invention, through the arrangement of the conducting wires and the adoption of ETFE with high material density as the protective layer, the volume of the whole cable is effectively reduced, and the cable is firm and compact, does not exhaust gas and can be used in a vacuum environment; in addition, the invention also has the advantages of high and low temperature resistance, light weight, thinness, wear resistance, stretch resistance, dust free, static electricity prevention and the like. The invention can be widely applied to high-end industries such as aviation, aerospace, military industry, medical treatment, semiconductors and the like.

Drawings

Fig. 1 is a schematic structural view of a cross section of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 2, a cable for a drag chain of the present invention comprises 10 to 14 wires 10 arranged in parallel in a row, wherein the wires 10 and ETFE (ETFE: polytetrafluoroethylene) are extruded together by an extruder to form an integral structure, i.e., a protective layer 26 made of PTFE. This way the protective layer 26 is surface dense and gas tight.

The lead 10 comprises a core wire 12 formed by twisting 25 copper wires with the diameter of 0.08mm together, wherein the copper wires are plated with silver to enhance the conductivity; the silver-plated copper core wire 12 is more flexible and pliable. Each core wire 12 is coated with an insulating layer 14 made of ETFE, and the two core wires 12 and the two tensile wires 28 are twisted to form a twisted wire 18 with uniform roundness.

The twisted wire 18 is externally provided with a winding layer 20 made of an ETFE film, and the winding layer 20 is formed by obliquely wrapping three layers of the ETFE film in a positive and negative staggered mode. When the winding layer 20 is wound, the first layer is obliquely wrapped in forward rotation (the upper part and the lower part only indicate relative directions and are not actual directions), the second layer is obliquely wrapped in reverse rotation, so that the first layer can be effectively prevented from loosening, and the third layer is obliquely wrapped in forward rotation again, so that the two layers in the first layer are firm and not scattered even if the outermost layer is loosened. The winding layer 20 is light, thin and flexible in structure and long in service life; and lubrication, and small resistance with other layers.

The winding layer 20 is externally coated with a shielding layer 22 formed by weaving metal wires, and the shielding layer 22 is formed by wrapping the winding layer 20 with a metal mesh formed by winding and weaving silver-plated copper wires. Two ends of the metal net can be wrapped by the ETFE film, so that the metal net is prevented from scattering. The metal net made of silver-plated copper is soft and easy to bend.

The tensile cord 28 is a cotton or kevlar cord to improve the tensile strength of the cable.

The utility model discloses only relate to relevant hardware structure, solve the structural design of hardware in the background art problem, relevant control, communication software's realization, the industry has had ripe technique, and the ordinary technical staff in the art rationally adopts according to the demand can.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a cable for tow chain, its includes the wire that a plurality of roots set up side by side, all the outer cladding of wire protective layer, the wire includes the heart yearn of being made by silver-plated copper, every all the outer insulating layer that all coats of core yearn, its characterized in that: the anti-pulling cable comprises two core wires, a plurality of anti-pulling wires and a twisted wire, wherein the twisted wire is uniform in roundness, a winding layer made of an ETFE film is arranged outside the twisted wire, and a shielding layer formed by weaving metal wires is coated outside the winding layer.

2. The cable for a tow chain according to claim 1, wherein: the winding layer is formed by obliquely wrapping at least two to three layers of ETFE films in a positive and negative staggered manner.

3. The cable for a tow chain according to claim 2, wherein: the winding layer is formed by wrapping three layers of ETFE films, wherein the first layer is wrapped obliquely in a forward rotating mode, the second layer is wrapped obliquely in a reverse rotating mode, and the third layer is wrapped obliquely in the forward rotating mode.

4. The cable for a tow chain according to claim 1, wherein: the shielding layer is formed by wrapping the winding layer with a metal net formed by winding and weaving silver-plated copper wires.

5. The cable for a tow chain according to claim 1, wherein: comprises 10 to 14 leads which are arranged in a row in parallel.

6. The cable for a tow chain according to claim 1, wherein: the protective layer is made of PTFE synthetic material.

7. The cable for a tow chain according to claim 1, wherein: the leads all comprise the core wires formed by twisting 25 copper wires with the diameter of 0.08mm, and the copper wires are plated with silver.

8. The cable for a tow chain according to claim 1, wherein: the tensile wire is made of cotton or Kevlar.