CN202102768U

CN202102768U - Anti-towing rubber jacketed flexible cable having flexible reinforced structure

Info

Publication number: CN202102768U
Application number: CN2011201815783U
Authority: CN
Inventors: 陈学武
Original assignee: Jiangsu Zhongmei Cable Group Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2011-06-01
Filing date: 2011-06-01
Publication date: 2012-01-04
Anticipated expiration: 2021-06-01

Abstract

The utility model discloses an anti-towing rubber jacketed flexible cable having a flexible reinforced structure, comprising a cable core in the centre of the cable, wherein an inner covering is extruded on the outside of the core cable, a reinforced layer is formed on the outer surface of the inner covering by evenly winding and twisting a reinforced rope, and an outer covering is tightly extruded on the outside of the reinforced layer. The reinforced rope is an aramid fiber yarn reinforced rope, which includes a plurality of aramid fiber yarns and threads twisted together in the middle, and the outer surface of the twisted aramid fiber yarn is weaved with a layer of aramid fiber yarn. The anti-towing rubber jacketed flexible cable is made of high strength aramid fiber yarn reinforced material, the tensile strength is increased, and subsequent processing steps are easy; compared with a cable having a metal reinforced layer, the anti-towing rubber jacketed flexible cable needs no large-scale steel band and steel wire armoring machine, convenient for the operation for workers, and the energy consumption is reduced; and the bending towing performance of the cable is improved, the service life of the cable is extended, and the economic benefit is increased.

Description

The anti-towing of a kind of flexible reinforcement rubber sleeve flexible cable

Technical field

The utility model relates to a kind of electric wire, specifically is the anti-towing of a kind of flexible reinforcement rubber sleeve flexible cable.

Background technology

The existing cable reinforcement adopts the wrapped reinforcement of steel band, steel wire to twine modes such as stranded reinforcement, braided steel wire reinforcement usually; Promptly after the cable insulation core is stranded, extrude one deck sheath; Adopt metal materials such as steel band, steel wire to carry out armouring on the sheath surface and reinforce, extrude one deck outer jacket then.Though metal such as steel band, steel wire reinforcement material has improved the tensile strength and the towing performance of cable; But crooked, coiling performance in cable laying and the use have been influenced simultaneously; Especially for anti-towing rubber sleeve flexible cable; In frequent crooked dilatory process, deflect performance and have a greatly reduced quality, can't guarantee long-term normal use of cable.

The utility model content

The utility model technical problem to be solved provides the anti-towing of a kind of flexible reinforcement rubber sleeve flexible cable, and this cable adopts flexible reinforcement, can improve the tensile strength of anti-towing rubber sleeve flexible cable, does not influence the performance that deflects of cable again.

The anti-towing of the described flexible reinforcement of the utility model rubber sleeve flexible cable; Comprise the cable core that is positioned at cable center; Outside cable core, extrude sheath, it adopts the uniform winding of strengthening restricting to be stranded in the sheath outer surface and forms reinforced layer, outer jacket is closely extruded outside reinforced layer again.

As the improvement of the utility model, above-mentioned reinforcement rope adopts aramid yarn to strengthen rope, and the one-tenth in the middle of this aramid yarn reinforcement rope comprises is twisted with the fingers some strands of aramid fiber yarns that twist together, again at stranded aramid fiber yarn outer surface braiding one deck aramid yarn.

The utility model adopts high strength aramid yarn reinforcement material, has improved tensile strength, and is easy to later process processing; Compare with metal shielding, need not large-scale steel band, steel wire armouring machine, be convenient to workman's operation, reduced energy consumption; Improve the crooked towing performance of cable, prolonged the useful life of cable, improved economic benefit.

Description of drawings

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

Fig. 2 is the structural representation that aramid yarn is strengthened rope among Fig. 1.

Embodiment

As shown in Figure 1; The anti-towing of the described a kind of flexible reinforcement of the utility model rubber sleeve flexible cable; Comprise the cable core 1 that is positioned at cable center, the cable core in the present embodiment is that four the insulated core is stranded forms, certainly as required can be by some insulated cores combinations.Outside cable core 1, extrude sheath 2, adopt 3 uniform winding of strengthening restricting to be stranded in the sheath outer surface then and form reinforced layer, again outer jacket 4 is closely extruded outside reinforced layer.

Like Fig. 2, this is strengthened rope 3 and strengthens rope for aramid yarn, and its structure is for to twist together 5 one-tenth sth. made by twisting of some strands of aramid fiber yarns, again at stranded aramid fiber yarn outer surface braiding one deck aramid yarn 6.The utility model has substituted the single sheath structure of traditional cable; Be to carry out stranding after the rubber insulation core machines; Extrude the rubber inner sheath then, aramid yarn is strengthened the surface formation reinforced layer that the rope uniform winding is stranded in the cable sheath, closely extrude the rubber oversheath at last.

The advantage of the utility model:

1, the reinforcement material of the utility model adopts the high strength aramid yarn, and its tensile strength reaches 2700MPa, be 2 times of intensity of steel wire, and pliability is good, can substitute traditional metal material fully.

2, the utility model is strengthened the surface that the rope uniform winding is stranded in the cable sheath with many aramid yarns, outer jacket is closely extruded outside reinforced layer, thereby reinforced layer and inside and outside sheath are fitted tightly.

3, single aramid yarn reinforcement rope structure is stable, is a stable reinforcement unit, and stiffening effect is provided.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement, these improve the protection range that also should be regarded as the utility model.

Claims

1. a flexible reinforcement resists the towing rubber sleeve flexible cable; Comprise the cable core (1) that is positioned at cable center; Outside cable core, extrude sheath (2); It is characterized in that adopting reinforcement rope (3) uniform winding to be stranded in the sheath outer surface and form reinforced layer, again outer jacket (4) is closely extruded outside reinforced layer.

2. the anti-towing of flexible reinforcement according to claim 1 rubber sleeve flexible cable is characterized in that said reinforcement rope (3) is aramid yarn reinforcement rope.

3. the anti-towing of flexible reinforcement according to claim 2 rubber sleeve flexible cable; It is characterized in that aramid yarn reinforcement rope comprises the some strands of aramid fiber yarns (5) that middle one-tenth sth. made by twisting twists together, again at stranded aramid fiber yarn outer surface braiding one deck aramid yarn (6).