CN201142242Y

CN201142242Y - Railway turnout transverse connection cable

Info

Publication number: CN201142242Y
Application number: CNU2007201315023U
Authority: CN
Inventors: 沈芳; 孙勤良; 庄浩兵
Original assignee: Wujiang Shengxin Electric Cable Co ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2007-12-14
Filing date: 2007-12-14
Publication date: 2008-10-29
Anticipated expiration: 2017-12-14

Abstract

The utility model discloses a railway turnout transverse connection cable, it includes inner conductor, outer conductor, sets up inner insulating layer, cladding between inner conductor and outer conductor at the outer insulating layer of the periphery of outer conductor, cladding at the shielding layer of the periphery of outer insulating layer, the cladding outer jacket in the periphery of shielding layer, inner conductor, outer conductor constitute by the multi-beam heart yearn, the heart yearn includes steel sheet and the copper layer of cladding in the outside of steel sheet, the sectional area ratio on steel sheet and copper layer is 5: 95-45: 55, the inner conductor is formed by the transposition of multi-beam heart yearn, the outer conductor is in by the vertical inseparable range of multi-beam heart yearn the outside of inner insulating layer constitute. The core wires forming the inner conductor and the outer conductor are both formed by core wires of a double-layer copper-clad steel structure, so that the production cost is greatly reduced on the premise of ensuring the quality of cable products.

Description

A kind of transverse connecting cable of railway slip road

Technical field

The utility model relates to a kind of railway track circuit cable.

Background technology

On 250Km/h and above high-grade railway, for realize train by middle station the time with at interval circuit all with identical speed safe operation, need be the track circuit of circuit in interval circuit track circuit and the station by logic interconnect (promptly interval and station track circuit integrated), therefore, need being located to enter the station in the two ends, station or the commentaries on classics that goes out station location is removed the turnout and laterally connected, can not remove the place, turnout with the assurance track circuit and interrupt in commentaries on classics, unimpeded under any condition.Prior art transverse connecting cable of railway slip road comprise inner conductor layer, outer conductor layer, be arranged on inner insulating layer between the internal and external conductor layer, be coated on described outer conductor layer periphery screen, be coated on the oversheath of the outside of screen, described inner wire, outer conductor are the single layer structure that pure copper material is made, though this transverse connecting cable of railway slip road can satisfy the integrated transmission requirement of track circuit on function, have following problem in actual use:

1, because of cable must install be laid between two rail of circuit or the other ground of rail on, the inner and outer conductor of cable and screen all are to be made by pure copper material, after install and use at the scene, the stolen situation of cable happens occasionally, the stolen back of cable track circuit interrupts, cause train travel late, indirect economic loss is very big;

2, the outer conductor of cable and screen have adopted copper wire braiding and wire armoring structure, and complex structure, production efficiency is low, manufacturing cost is high.

The utility model content

Technical problem to be solved in the utility model provides a kind of transverse connecting cable of railway slip road, the low cost of manufacture of this transverse connecting cable of railway slip road.

For solving above technical scheme, the utility model is taked following technical scheme:

A kind of transverse connecting cable of railway slip road, it comprises inner wire, outer conductor, be arranged on the inner insulating layer between inner wire and the outer conductor, be coated on the external insulation layer of the periphery of outer conductor, be coated on the screen of the periphery of external insulation layer, be coated on the outer jacket of the periphery of screen, described inner wire, outer conductor is made up of the multi beam heart yearn, heart yearn comprises the steel layer and is coated on the copper layer of the outside of steel layer, the sectional area ratio of steel layer and copper layer is 5: 95-45: 55, inner wire forms by the multi beam heart yearn is stranded, and outer conductor is vertically closely arranged wrapped outside at described inner insulating layer by the multi beam heart yearn and constituted.

Described screen is made of aluminium-plastic tape, composite steel-plastic belt longitudinal lapping.

Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:

Inner wire forms by the multi beam heart yearn is stranded, and outer conductor is vertically closely arranged wrapped in the outside of inner insulating layer by the multi beam heart yearn, and heart yearn is the copper covered steel structure, greatly reduces production cost under the prerequisite of the quality that has guaranteed cable product.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of heart yearn of the present utility model;

Wherein:

1, inner wire; 2, inner insulating layer; 3, outer conductor; 4, external insulation layer; 5, screen; 50, aluminium-plastic tape; 51, composite steel-plastic belt; 7, oversheath.10, heart yearn; 100, steel layer; 101, copper layer.

Embodiment

The utility model is described in more detail below in conjunction with accompanying drawing and concrete execution mode:

Referring to Fig. 1 and Fig. 2, according to a kind of transverse connecting cable of railway slip road of present embodiment comprise inner wire 1, outer conductor 3, be arranged on inner insulating layer 2 between inner wire 1 and the outer conductor 3, be coated on the periphery of outer conductor layer 3 external insulation layer 4, be coated on the periphery of external insulation layer 4 screen 5, be coated on the oversheath 7 of the outside of screen 5.

Described inner wire 1 is heart yearn 10 vertical stranded forming of 0.3mm by the multi beam external diameter, and the described heart yearn 10 of every bundle comprises steel layer 100 and be coated on the copper layer 101 of the outside of steel layer 100 that copper layer 100 is 1: 8 with the sectional area ratio of steel layer 101.Described outer conductor 3 is the vertically tight wrapped periphery at inner insulating layer 2 of coarse pitch of arranging of heart yearn 10 of 0.8mm by the multi beam external diameter.Described screen 5 two-sided aluminium-plastic tapes 50 of plastic-coated respectively and composite steel-plastic belt 51 embossing vertically are coated on the periphery of external insulation layer 4.

In sum, the heart yearn that constitutes inner wire and outer conductor is formed by the heart yearn of the copper covered steel structure of bilayer, greatly reduces production cost under the prerequisite of the quality that has guaranteed cable product; In addition, because the heart yearn of this double-deck copper covered steel is two kinds of metal composite, be different from the melting utilization once more easily of single metal, present effective process means of also this heart yearn not being recycled, therefore just can prevent effectively that cable is stolen, and replace that traditional basketry adopts heart yearn to indulge to pack into internal and external conductor and screen obviously reduces production costs.

Claims

1, a kind of transverse connecting cable of railway slip road, it comprises inner wire (1), outer conductor (2), be arranged on the inner insulating layer (3) between described inner wire (1) and the described outer conductor (2), be coated on the external insulation layer (4) of the periphery of described outer conductor (2), be coated on the screen (5) of the periphery of described external insulation layer (4), be coated on the outer jacket (7) of the periphery of described screen (5), described inner wire (1), described outer conductor (3) is made up of multi beam heart yearn (10), it is characterized in that: described heart yearn (10) comprises steel layer (100) and is coated on the copper layer (101) of the outside of described steel layer (100), described steel layer (100) is 5 with the sectional area ratio of described copper layer (101): 95-45: 55, described inner wire (1) is by stranded the forming of the described heart yearn of multi beam (10), and described outer conductor (3) is vertically closely arranged wrapped outside at described inner insulating layer (3) by the described heart yearn of multi beam (10) and constituted.

2, a kind of transverse connecting cable of railway slip road according to claim 1 is characterized in that: described screen (5) is made of aluminium-plastic tape (50), composite steel-plastic belt (51) longitudinal lapping.