CN206601974U - A kind of resistance to compression shock resistance type railway digital signal cable - Google Patents

A kind of resistance to compression shock resistance type railway digital signal cable Download PDF

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Publication number
CN206601974U
CN206601974U CN201720162591.1U CN201720162591U CN206601974U CN 206601974 U CN206601974 U CN 206601974U CN 201720162591 U CN201720162591 U CN 201720162591U CN 206601974 U CN206601974 U CN 206601974U
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China
Prior art keywords
resistance
layer
compression
digital signal
signal cable
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Expired - Fee Related
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CN201720162591.1U
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Chinese (zh)
Inventor
沈小平
周江
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Jiangsu Tongding Optic Electronic Stock Co Ltd
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Jiangsu Tongding Optic Electronic Stock Co Ltd
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Abstract

The utility model, which is created, provides a kind of resistance to compression shock resistance type railway digital signal cable, including PET strip lapping layer, first buffer layer, the first resistance to compression impact resistance screen layer, second buffer layer, metal screen layer, three buffer layer, the second resistance to compression impact resistance screen layer and the oversheath that cable core and its outside are coated successively from the inside to the outside;Cable core includes at least one quad, and quad stranded is formed by the insulated single wire of four different colours;Insulated single wire includes the insulating barrier of conductor and its outside cladding;Insulating barrier is the endothelium foaming three-layer co-extruded structure of crust.The utility model is created to be selected by rational structure design and material; each hierarchical structure outside cable core acts synergistically jointly; especially the first resistance to compression impact resistance screen layer employs the potassium steel pipe that surface is coated with ternary alloy three-partalloy; second resistance to compression impact resistance screen layer employs the potassium steel steel band lapping layer that surface is coated with ternary alloy three-partalloy; cable core is protected from damage, and the resistance to compression impact resistance of cable is protruded very much.

Description

A kind of resistance to compression shock resistance type railway digital signal cable
Technical field
The invention belongs to cable manufacturing technology field, more particularly, to a kind of resistance to compression shock resistance type railway digital Signal cable.
Background technology
Railway digital signal cable as railway train control automatics and train overspeed protection system ground installation, microcomputer interlocking, Microcomputer detecting system, high-power electric goat etc. are believed about transmitting control information, monitoring between signalling arrangement and control device Breath and electric energy, its effect are extraordinary, and it is for ensureing that train and personal security have highly important effect.Common railway Digital signal cable is poor due to resistance to compression impact resistance, often occurs cable and is squeezed and weighs deformation wounded, the serious matter such as cable core is broken Amount problem, increases the maintenance cost of railway construction, bomb has been buried safely to train.Need a kind of safe and reliable railway digital badly Signal cable, to adapt to severe construction of railways and use environment, improves safety of railway traffic.
The content of the invention
In view of this, the invention is intended to overcome defect present in above-mentioned prior art, proposes a kind of resistance to punching of resistance to compression Hit numeral signal cables for railway.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in:
A kind of resistance to compression shock resistance type railway digital signal cable, including cable core and its outside are coated successively from the inside to the outside PET strip lapping layer, first buffer layer, the first resistance to compression impact resistance screen layer, second buffer layer, metal screen layer, three buffer layer, Second resistance to compression impact resistance screen layer and oversheath;The cable core includes at least one quad, and the quad is by four differences The insulated single wire of color is stranded to be formed;The insulated single wire includes the insulating barrier of conductor and its outside cladding;The insulating barrier is Endothelium-three-layer co-extruded the structure of foaming-crust.
Further, described endothelium, exodermis are vulcanization ceramic-rubber insulation.
Further, described foaming layer is polyurethane foaming layer.
Further, the first buffer layer, second buffer layer, three buffer layer use polyurethane elastomer foamed damping Layer.
Further, the first described resistance to compression impact resistance screen layer is coated with the potassium steel pipe of ternary alloy three-partalloy using surface.
Further, described metal screen layer uses aluminium sheath, composite sheath or copper strip shielding.
Further, the potassium steel steel band that the second described resistance to compression impact resistance screen layer is coated with ternary alloy three-partalloy using surface is wrapped Layer.
Further, described oversheath is using vulcanization ceramic-rubber sheath.
Relative to prior art, the invention has the advantage that:
1) the invention is selected by rational structure design and material, and each hierarchical structure outside cable core cooperates with work jointly With especially the first resistance to compression impact resistance screen layer employs the potassium steel pipe that surface is coated with ternary alloy three-partalloy, the second resistance to compression impact resistance Screen layer employs the potassium steel steel band lapping layer that surface is coated with ternary alloy three-partalloy, protects cable core from damage, and cause cable Resistance to compression impact resistance is protruded very much.
2) first buffer layer, second buffer layer, three buffer layer are using polyurethane elastomer foamed damping layer, processing charges With characteristics such as low, intensity high, elongation is good, high resiliency, wear-resisting, impact resistances, protect cable core from damage, effectively strengthen cable Resistance to compression impact resistance.
Brief description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound The schematic description and description made is used to explain the invention, does not constitute the improper restriction to the invention. In accompanying drawing:
Fig. 1 is the structural representation of the invention.
Description of reference numerals:
1st, insulated single wire;2nd, conductor;3rd, insulating barrier;4th, quad;5th, cable core;6th, PET strip lapping layer;7th, the first buffering Layer;8th, the first resistance to compression impact resistance screen layer;9th, second buffer layer;10th, metal screen layer;11st, three buffer layer;12nd, second resists Press impact resistance screen layer;13rd, oversheath.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than indicate Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of resistance to compression shock resistance type railway digital signal cable, as shown in figure 1, including cable core 5 and its outside from the inside to the outside The PET strip lapping layer 6 that coats successively, first buffer layer 7, the first resistance to compression impact resistance screen layer 8, second buffer layer 9, metallic shield Layer 10, three buffer layer 11, the second resistance to compression impact resistance screen layer 12 and oversheath 13;The cable core includes at least one quad 4, the quad 4 stranded is formed by the insulated single wire 1 of four different colours;The insulated single wire 1 includes conductor 2 and its outside The insulating barrier 3 of cladding;The insulating barrier 3 is endothelium-three-layer co-extruded structure of foaming-crust.Above-mentioned metal screen layer 10 is used Aluminium sheath, composite sheath or copper strip shielding., can be in oversheath and the second resistance to compression impact resistance screen layer in order to effectively suppress damaged by rats Between set one layer of armor, specifically, can be metal armor layers.
Above-mentioned foaming layer is polyurethane foaming layer.Insulating resistance of cable can be improved, the sending allowance of cable is reduced, reduced The mutual capacitance of cable, cable security reliability is high.In addition, in an optional embodiment, can be in quad and PET strip Aerial drainage wire is set between lapping layer, the safety and reliability that cable is used is improved.
Above-mentioned first buffer layer 7, second buffer layer 9, three buffer layer 11 use polyurethane elastomer foamed damping layer, The spies such as processing charges is low, intensity is high, elongation is good, high resiliency (load support capacity is big, good damping effect), wear-resisting, impact resistance Property, cable core is protected from the resistance to compression impact resistance of damage, effectively enhancing cable.
The first above-mentioned resistance to compression impact resistance screen layer 8 is coated with the potassium steel pipe of ternary alloy three-partalloy using surface.Second resistance to compression is resistance to Impact screen layer 12 is coated with the potassium steel steel band lapping layer of ternary alloy three-partalloy using surface.The resistance to compression for being used as cable from potassium steel is resistance to Screen layer is impacted, makes cable under strong impact, extruding condition, processing hardening phenomenon occurs rapidly for potassium steel top layer, makes it The good toughness and plasticity of austenite is still kept in center portion, meanwhile, hardened layer has good anti-wear performance.In the table of potassium steel Face is coated with ternary alloy three-partalloy, to protect potassium steel not oxidized in itself, strengthens the shielding properties of cable.
The endothelium and exodermis and oversheath of above-mentioned insulating barrier are using vulcanization ceramic-rubber sheath, specifically, vulcanization Ceramic-rubber is, by high temperature vulcanized, to be made ceramics together with rubber combined, it causes cable to have the insulation of high intensity Performance and good resistance to compression impact resistance.
The manufacturing process of this cable is:
First, according to demand by the insulated single wire 1 of produced 4 different colours carry out it is stranded after, outside it coat Polyester yarn, makes quad;
Further according to demand, the outside of at least one quad 4 produced is coated into PET strip lapping layer 6, using extruding or Around-packing technology is in cable core outer cladding first buffer layer 7, then using argon arc welding continuous welding process in the outer cladding of first buffer layer 7 First resistance to compression impact resistance screen layer 8, using extruding or around-packing technology is buffered in the outer cladding second of the first resistance to compression impact resistance screen layer 8 Layer 9, in the outer metal screen layer 10 of cladding successively of second buffer layer 9, three buffer layer 11, the and of the second resistance to compression impact resistance screen layer 12 Oversheath 13.
It is pointed out that to ensure that the every electricity function index of cable is qualified, in process of production, institute is wired in cable core Group must keep uniform tension in order, and the setting scope of the twisting pitch of insulated single wire and line group is 35~55 times of conductor assembly outer diameter.
The invention is selected by rational structure design and material, and each hierarchical structure outside cable core cooperates with work jointly With, cable core is protected from damage, and so that the resistance to compression impact resistance of cable is protruded very much.
The preferred embodiment of the invention is the foregoing is only, creation is not intended to limit the invention, it is all at this Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention Protection domain within.

Claims (8)

1. a kind of resistance to compression shock resistance type railway digital signal cable, it is characterised in that:Including cable core and its outside from the inside to the outside according to The PET strip lapping layer of secondary cladding, first buffer layer, the first resistance to compression impact resistance screen layer, second buffer layer, metal screen layer, Three buffer layer, the second resistance to compression impact resistance screen layer and oversheath;The cable core include at least one quad, the quad by The insulated single wire of four different colours is stranded to be formed;The insulated single wire includes the insulating barrier of conductor and its outside cladding;It is described Insulating barrier is endothelium-three-layer co-extruded structure of foaming-crust.
2. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described is interior Skin, exodermis are vulcanization ceramic-rubber insulation.
3. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described hair Alveolar layer is polyurethane foaming layer.
4. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described first Cushion, second buffer layer, three buffer layer are using polyurethane elastomer foamed damping layer.
5. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described One resistance to compression impact resistance screen layer is coated with the potassium steel pipe of ternary alloy three-partalloy using surface.
6. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described gold Belong to screen layer and use aluminium sheath, composite sheath or copper strip shielding.
7. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described Two resistance to compression impact resistance screen layers are coated with the potassium steel steel band lapping layer of ternary alloy three-partalloy using surface.
8. a kind of resistance to compression shock resistance type railway digital signal cable according to claim 1, it is characterised in that:Described is outer Sheath is using vulcanization ceramic-rubber sheath.
CN201720162591.1U 2017-02-22 2017-02-22 A kind of resistance to compression shock resistance type railway digital signal cable Expired - Fee Related CN206601974U (en)

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Application Number Priority Date Filing Date Title
CN201720162591.1U CN206601974U (en) 2017-02-22 2017-02-22 A kind of resistance to compression shock resistance type railway digital signal cable

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106847401A (en) * 2017-02-22 2017-06-13 江苏通鼎光电科技有限公司 A kind of resistance to compression shock resistance type railway digital signal cable
CN110504054A (en) * 2019-08-29 2019-11-26 南京思甲宁新材料科技有限公司 A kind of crushing resistance flexible cable and its preparation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106847401A (en) * 2017-02-22 2017-06-13 江苏通鼎光电科技有限公司 A kind of resistance to compression shock resistance type railway digital signal cable
CN110504054A (en) * 2019-08-29 2019-11-26 南京思甲宁新材料科技有限公司 A kind of crushing resistance flexible cable and its preparation process

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Granted publication date: 20171031

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