CN112712930A

CN112712930A - Reel cable is used in self-adaptation formula bank electricity power supply

Info

Publication number: CN112712930A
Application number: CN202011542871.8A
Authority: CN
Inventors: 黄晓军; 余静成; 张宇航; 徐银林; 刘曹江
Original assignee: Anhui Shangwei Cable Co ltd
Current assignee: Anhui Shangwei Cable Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-27

Abstract

The invention relates to the field of reel cables, in particular to a reel cable for self-adaptive shore power supply, which comprises a cable core, wherein the cable core comprises an annealed copper conductor, a mica insulating layer extruded outside the annealed copper conductor, a glass fiber tape wrapped outside the mica insulating layer, and an inner rubber sleeve extruded outside the glass fiber tape, the inner rubber sleeve is provided with a steel wire rope spirally wound and used for ensuring that the inside of the cable generates micro deformation when the cable is subjected to axial tension, the outer part of the inner rubber sleeve is wrapped with a metal armor layer attached to the spiral structure of the steel wire rope, the outer part of the metal armor layer is extruded and wrapped with a low-smoke halogen-free high polymer material outer sheath, and the steel wire rope with the spiral structure is arranged between the inner rubber sleeve and the metal armor layer and used for ensuring that the inside of the cable does not deform or generates micro deformation under the condition of the axial tension, the influence of buoyancy on the axial tension inside the cable is reduced.

Description

Reel cable is used in self-adaptation formula bank electricity power supply

Technical Field

The invention relates to the technical field of reel cables, in particular to a reel cable for self-adaptive shore power supply.

Background

The cable reel used by the shore power system is used for transmitting port power, and the use mode of the cable reel for shore power is different from that of a conventional cable reel for a field bridge, the cable capacity of the cable reel is less than 50m, the speed of winding and unwinding the cable is a fixed value, and the installation place of the winding drum is relatively fixed. The rolling car should be noted when designing to the pulling force that should consider the cable needs real-time detection, need carry out factors such as safety interlock with bank electric screen and bank electricity case among the bank electric system, the rolling car of design production like this could be used for bank electric system. But because place at the water bank, receive bank buoyancy influence when contacting with equipment, the cable is rocked back and forth easy fracture to influence the life of cable.

Disclosure of Invention

In order to solve the problems, the invention provides a self-adaptive reel cable for shore power supply.

The utility model provides a self-adaptation formula reel cable for shore connection power supply, includes the cable core, the cable core include annealing copper conductor, crowded package at the outside mica insulating layer of annealing copper conductor, around package at the outside glass fiber area of mica insulating layer, crowded package at the outside interior rubber sleeve of glass fiber area, interior rubber sleeve on be equipped with and be the heliciform around being used for guaranteeing the inside wire rope that produces small deformation of cable when receiving axial tension, the outside of interior rubber sleeve around the metal armor layer that has the heliciform structure laminating with wire rope, the outside crowded package of metal armor layer have low smoke and zero halogen macromolecular material oversheath.

And a magnesium oxide insulating layer is filled between the annealed copper conductor and the mica insulating layer.

The contact position of the metal armor layer and the steel wire rope is attached to the outer contour of the steel wire rope through external pressure to form a structure which protrudes outwards in a spiral shape.

The invention has the beneficial effects that: through including rubber sleeve and the metal armor between set up helical configuration's wire rope, be used for guaranteeing under axial tension's state that the cable is inside not to warp or produce small deformation, reduce buoyancy to the inside axial tension influence of cable, pass through external pressure and the laminating of wire rope outline in metal armor and wire rope contact position department simultaneously, be the convex structure of heliciform, take place to warp a little at wire rope and make wire rope reset with the floating power supply demand down of adaptation bank through the metal armor, and service life is prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic diagram of the distribution structure of the steel wire rope of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.

As shown in fig. 1 and 2, a reel cable is used in self-adaptation formula shore power supply, including the cable core, the cable core include annealing copper conductor 1, crowded package at the mica insulating layer 2 of annealing copper conductor 1 outside, around package at the outside glass fiber area 3 of mica insulating layer 2, crowded package at the outside interior rubber sleeve 4 of glass fiber area 3, interior rubber sleeve 4 on be equipped with and be the heliciform around being used for guaranteeing that the inside wire rope 8 that produces small deformation of cable when receiving axial tension, the outside of interior rubber sleeve 4 around have with the metal armor 5 of the heliciform structure laminating of wire rope 8, the outside crowded package of metal armor 5 have low smoke and zero halogen macromolecular material oversheath 7.

The environmental protection index is improved by using the low-smoke halogen-free high polymer material outer sheath 7, after the cable is burnt, toxic gas is not released, the environment is protected, rescue people are protected, and meanwhile, the flame retardant effect is good.

Adopt glass fiber band 3 existing insulating effect, waterproof effect is good simultaneously, is difficult for the rupture, guarantees that there is small displacement space in inner structure.

Through including rubber sleeve 4 and metal armor 5 between set up the wire rope 8 of heliciform structure form, a be used for guaranteeing under axial tension's state that the cable is inside not to warp or produce small deformation, guarantee can not be broken by axial tension, reduce buoyancy and to the inside axial tension influence of cable, laminate through external pressure and 8 outline of wire rope in

metal armor

5 and 8 contact position departments of wire rope simultaneously, be the convex structure of heliciform, take place to make wire rope 8 reset through metal armor 5 after small deformation at wire rope 8 and float with the adaptation bank and supply power demand down, the operating mode when using when adapting to bank electricity power supply, and service life is prolonged. In addition, a certain cavity is formed between the inner rubber sleeve 4 and the metal armor layer 5, so that when the cable receives bending torsion, the adaptability can be changed, and power supply use is ensured.

And a magnesium oxide insulating layer 6 is filled between the annealed copper conductor 1 and the mica insulating layer 2.

Two insulating layers of a mica insulating layer 2 and a magnesium oxide insulating layer 6 are arranged outside the annealed copper conductor 1, so that the electric leakage phenomenon caused by water intrusion after the outer sheath 7 of the low-smoke halogen-free high polymer material is broken is prevented.

The contact position of the metal armor layer 5 and the steel wire rope 8 is jointed with the outer contour of the steel wire rope 8 through external pressure to form a structure which protrudes outwards in a spiral shape, and the joint is used for ensuring the relative stability of the internal structure of the cable and simultaneously ensuring the timely reset of the steel wire rope 8 after small deformation.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a reel cable is used in self-adaptation formula shore power supply, includes the cable core, its characterized in that: the cable core include annealing copper conductor (1), crowded package at the outside mica insulating layer (2) of annealing copper conductor (1), wrap around package at the outside glass fiber area (3) of mica insulating layer (2), crowded package is at inside rubber sleeve (4) of glass fiber area (3) outside, interior rubber sleeve (4) on be equipped with and be the heliciform around being used for guaranteeing that cable inside produces little wire rope (8) of deformation when receiving axial tension, the outside of interior rubber sleeve (4) around having metal armor (5) with the heliciform structure laminating of wire rope (8), metal armor (5) outside crowded package have low smoke and zero halogen macromolecular material oversheath (7).

2. The adaptive reel cable for shore power supply according to claim 1, wherein: and a magnesium oxide insulating layer (6) is filled between the annealed copper conductor (1) and the mica insulating layer (2).

3. The adaptive reel cable for shore power supply according to claim 1, wherein: the contact position of the metal armor layer (5) and the steel wire rope (8) is attached to the outer contour of the steel wire rope (8) through external pressure to form a structure which protrudes outwards in a spiral shape.