CN209591648U - A kind of city excavation shield machine specialized power cable - Google Patents

Abstract

The utility model discloses a kind of cities to excavate shield machine specialized power cable, it include rubber skeleton, the rubber skeleton is made of six equilateral hexagon skeletons and six quadrate frameworks, the side length of hexagon skeleton and the side length of quadrate framework are equal, six hexagon skeletons and six quadrate framework intervals, which are arranged and are fixedly connected sequentially, constitutes the rubber skeleton that an entirety has dodecagon inner cavity, it is intracavitary in rubber skeleton to be equipped with core one, it is equipped with core two in each hexagon skeleton, core three is equipped in each quadrate framework.The pull resistance of the utility model cable, shock resistance greatly improve, it is frequently mobile that tension, shock resistance, alternating bending high-intensitive when cable works in the rugged environments such as tunnel, underground engineering construction etc. is effectively ensured, it ensure that cable is used safely, also there is good fire protection flame retarding, waterproof, jamproof performance.

Description

A kind of city excavation shield machine specialized power cable

Technical field

The utility model relates to field of cable technology more particularly to a kind of city to excavate shield machine specialized power cable.

Background technique

It is exactly that the cable of power, communication is provided for shield machine that cable for shield machine is excavated in city.With the development of society, newly-built Tunnel, subway are more and more, and Shield Construction Technique is to dig such ideal technology of underpass, for shield machine provide power and The cable for shield machine of communication is almost entirely by introducing.The use environment of cable for shield machine is special, to be readily bent, often move, It is resistant to the immersion of water, to be resistant to the extruding of stone, the grains of sand.At present, domestic cable for shield machine has problems and lacks Point, such as flexibility is poor, withstanding voltage grade is low, is not able to satisfy requirement since quality is unqualified using failure rate height.Also Have, the problem of due to cable for shield machine working environment, for high transformation property and anti-outer signals jamming performance, all there is very More shortcomings.

Utility model content

The utility model aim is exactly in order to make up the defect of prior art, to provide a kind of city excavation shield machine Special electric Power cable.

The utility model is achieved through the following technical solutions:

A kind of city excavation shield machine specialized power cable, includes rubber skeleton, the rubber skeleton is by six What equilateral hexagon skeleton and six quadrate frameworks were constituted, the side length of hexagon skeleton and the side length of quadrate framework are equal, and six Hexagon skeleton and six quadrate framework intervals, which are arranged and are fixedly connected sequentially, constitutes an entirety with dodecagon inner cavity Rubber skeleton, it is intracavitary in rubber skeleton to be equipped with core one, it is equipped with core two in each hexagon skeleton, in each side It is equipped with core three in shape skeleton, is successively coated with shield buffer layer, glass fibre in chlorosulfonated polyethylene in the outside of rubber skeleton Braiding layer, phosphating steel wire woven shield, graphene inhale wavestrip and chlorosulfonated polyethylene oversheath；The core one includes Conductor one and the EPDM rubber insulating layer one and aluminium foil wrapping layer for being successively coated on one outside of conductor, the core two The EPDM rubber insulating layer two and tinned copper wire for including conductor two and being successively coated on the outside of conductor two add aramid yarn Woven shield, the core three include conductor three and are successively coated on the EPDM rubber insulation in three outside of conductor Layer three and semiconductive shielding layer.

Conductor one, conductor two and the conductor three is all made of made of more soft thin copper free wire bundle strands.

The utility model has the advantages that: the utility model is used by six equilateral hexagon skeletons and six quadrate frameworks The rubber skeleton of composition, core are arranged in skeletal internal, can be well protected each core and be not damaged, and have good resistance to compression The performance of tension warp resistance, internal structure is stablized, and for a long time using that will not deform, quadrate framework is made to connect two hexagons Skeleton, structure is more stable, greatly improves the pull resistance of cable, shock resistance, successively coats in the outside of rubber skeleton There are shield buffer layer, fiberglass braided layer, phosphating steel wire woven shield, graphene in chlorosulfonated polyethylene to inhale wavestrip and chlorine sulphur Change polyethylene outer sheath, high-intensitive when cable works in the rugged environments such as tunnel, underground engineering construction resist is effectively ensured Drawing, shock resistance, alternating bending etc. are frequently mobile, ensure that cable is used safely, also have good fire protection flame retarding, waterproof, resist The performance of interference；Equipped with graphene suction wavestrip, with absorbing property, stable structure and it can enable signal wire when transmitting signal from outer Boundary's electromagnetic interference, it is ensured that the reliability of signal transmission.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is rubber skeleton structural schematic diagram.

Specific embodiment

As shown in Figure 1, 2, shield machine specialized power cable is excavated in a kind of city, includes rubber skeleton 1, the rubber Skeleton 1 is made of six equilateral hexagon skeletons 2 and six quadrate frameworks 3, the side length and quadrate framework of hexagon skeleton 2 3 side length is equal, and six hexagon skeletons 2 and six quadrate frameworks 3 are spaced to be arranged and be fixedly connected sequentially and constitute an entirety Rubber skeleton with dodecagon inner cavity, it is intracavitary in rubber skeleton to be equipped with core one, in each hexagon skeleton 2 Equipped with core two, it is equipped with core three in each quadrate framework 3, is successively coated with the poly- second of chlorosulfonation in the outside of rubber skeleton 1 Shield buffer layer 4, fiberglass braided layer 5, phosphating steel wire woven shield 6, graphene inhale wavestrip 7 and chlorosulfonated polyethylene in alkene Oversheath 8；The core one includes conductor 1 and is successively coated on the EPDM rubber insulation in one 9 outside of conductor Layer one 10 and aluminium foil wrapping layer 11, the core two include conductor 2 12 and are successively coated on the three of 2 12 outside of conductor First ethylene-propylene rubber insulated layer 2 13 and tinned copper wire add aramid yarn woven shield 14, and the core three includes conductor 3 15 And successively it is coated on the EPDM rubber insulating layer 3 16 and semiconductive shielding layer 17 in 3 15 outside of conductor.

Conductor 1, conductor 2 12 and the conductor 3 15 is all made of made of more soft thin copper free wire bundle strands.

Claims (2)

1. shield machine specialized power cable is excavated in a kind of city, it is characterised in that: it include rubber skeleton, the rubber skeleton It is to be made of six equilateral hexagon skeletons and six quadrate frameworks, the side length and the side length phase of quadrate framework of hexagon skeleton It is arranged Deng, six hexagon skeletons and six quadrate framework intervals and one entirety of composition that is fixedly connected sequentially has dodecagon The rubber skeleton of inner cavity, it is intracavitary in rubber skeleton to be equipped with core one, core two, In are equipped in each hexagon skeleton It is equipped with core three in each quadrate framework, is successively coated with shield buffer layer, glass in chlorosulfonated polyethylene in the outside of rubber skeleton Glass fiber braiding layer, phosphating steel wire woven shield, graphene inhale wavestrip and chlorosulfonated polyethylene oversheath；The core one Include conductor one and is successively coated on the EPDM rubber insulating layer one and aluminium foil wrapping layer in one outside of conductor, it is described The EPDM rubber insulating layer two and tinned copper wire that core two includes conductor two and is successively coated on the outside of conductor two add Aramid yarn woven shield, the core three include conductor three and are successively coated on the ethylene-propylene-diene monomer in three outside of conductor Skin insulating layer three and semiconductive shielding layer.

2. shield machine specialized power cable is excavated in a kind of city according to claim 1, it is characterised in that: the conductor One, conductor two and conductor three are all made of made of more soft thin copper free wire bundle strands.