CN219534108U - Mining underground cable armored by steel wires - Google Patents

Abstract

The utility model relates to a mining underground cable with steel wire armor, which comprises a plurality of cables with circular cross sections, wherein a filling strip is arranged at the central position of the cable, the filling strip is abutted against the cables at the outer periphery side, a filling body is arranged between two adjacent cables, the filling body comprises an arc plate and a partition, the partition is arranged at the inner arc side of the arc plate, a plurality of supporting rings are arranged in an array manner along the length direction of the cables and sleeved outside the cables and the filling body, an insulating layer is sleeved outside the supporting rings, a first PP rope, an armor steel wire, a second PP rope and a protective sleeve are sequentially arranged outside the insulating layer, the first PP rope, the armor steel wire and the second PP rope are wound by a plurality of strands of wire harnesses, the winding direction of the first PP rope is the same as that of the second PP rope, and the winding direction of the armor steel wire is opposite to that of the first PP rope. The first PP rope and the second PP rope which are reversely wound on the two sides of the wound armored steel wire are used for balancing the torsion of the armored steel wire, preventing the armored steel wire from loosening, and reducing the overall weight and the cost of the cable.

Description

Mining underground cable armored by steel wires

Technical Field

The utility model relates to the technical field of cables, in particular to a mining underground cable armored by steel wires.

Background

The steel wire armoured cable has higher mechanical strength and stronger extrusion resistance, and when the cable is laid in a vertical shaft roadway or an inclined coal mine roadway with a large gradient, the steel wire armoured cable is selected. The existing steel wire armoured cable adopts thin steel wires to carry out single-layer spiral winding, when the cable is axially stretched, the steel wires are spiral winding, the cable cannot provide reliable axial tensile capacity, and when the cable is twisted, the steel wire armoured layer is easy to loose and the like. However, the double-layer armored cable is heavy, costly and difficult to install, and thus needs improvement.

Disclosure of Invention

Based on the above, it is necessary to provide a wire-armored mining downhole cable in view of the above problems.

The utility model provides a mining underground cable of steel wire armor, includes that a plurality of transversal personally submits circular shape cable, and the central point that several cables closed is provided with a filler strip along its length direction, filler strip and the cable butt of periphery side, adjacent two still be provided with the obturator between the cable, the obturator adopts rubber and plastic material to make, the obturator includes the arc board and cuts off, cut off the setting in the inner arc side of arc board to with the cable butt, a plurality of support ring are arranged along cable length direction array, the cover is established the cable with the obturator outside, the support ring outside cover has the insulating layer, still set gradually first PP rope outside the insulating layer, armor wire, second PP rope and protective sheath, the equal wiring harness winding of first PP rope, armor wire and second PP rope, and first PP rope is the same with second PP rope winding direction, steel wire armor winding direction is opposite with first PP rope and second PP rope winding direction.

Preferably, the partition is provided with a lightening hole.

Preferably, the conductors in the cable are formed by twisting a plurality of copper cores.

Preferably, asphalt is poured on the second PP rope.

The utility model has the advantages that: the first PP rope and the second PP rope which are reversely wound on the two sides of the wound armored steel wire are used for balancing the torsion of the armored steel wire, preventing the armored steel wire from loosening, and reducing the overall weight and the cost of the cable.

Drawings

FIG. 1 is a schematic perspective view of a mining underground cable armored with steel wires according to one embodiment;

fig. 2 is a schematic cross-sectional view of a wire-armored mining downhole cable.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a mining underground cable with steel wire armor comprises a plurality of cables 1 with circular cross sections, a filling strip 2 is arranged at the central position of the cables 1 in a surrounding manner along the length direction of the cables, the filling strip 2 is abutted against the cables 1 at the outer periphery side, two adjacent cables 1 are further provided with a filling body 3, the filling body 3 is made of rubber plastic materials, the filling body 3 comprises an arc plate 31 and a partition 32, the partition 32 is arranged at the inner arc side of the arc plate 31 and abutted against the cables 1, a plurality of supporting rings 4 are arranged in an array manner along the length direction of the cables 1, the cables 1 and the outer sides of the filling body 3 are sleeved with insulating layers 5, the insulating layers 5 are further provided with first PP ropes 6 in sequence, armor steel wires 7, second PP ropes 8 and protective sleeves 9, the first PP ropes 6, the armor steel wires 7 and the second PP ropes 8 are wound by adopting rubber plastic materials, the first PP ropes 6 and the second PP ropes 8 are wound in the same direction, and the second PP ropes are wound by the opposite directions, and the first PP ropes and the second PP ropes are wound by the second PP ropes 7 are wound by the opposite directions. Specifically, the cable 1 is wrapped with a thick rubber shell, a metal conductor is arranged in the rubber shell for conducting electricity, three cables 1 are designed and surrounded together, a filling strip 2 is arranged in the center and used for supporting the cables 1 from the inside, filling bodies 3 are added between every two of the three cables 1, the filling bodies 3 are made of rubber plastic materials and have certain elasticity, meanwhile, in order to ensure that the periphery of a cross section formed by the filling bodies 3 and the cables 1 is in a circular ring shape, the filling bodies 3 are designed to be formed into two parts, the arc plate 31 and the partition 32 are included, the arc plate 31 is used for being matched with the outer Zhou Dingdian of the three cables 1 to compensate for gaps to form a circular ring, when the supporting ring 4 is conveniently sleeved, the supporting ring 4 is provided with support, the partition 32 can be used for separating the two antenna cables 1, and mutual friction between two adjacent cables 1 is avoided when the cables 1 are twisted. When the support rings 4 are sleeved, the support rings can be used for supporting the insulating layer 5 and preventing collapse, and particularly, the distance between the support rings 4 can be set according to actual needs, for example, one support ring 4 can be installed at intervals of 5 m. Further, the first PP rope 6, the armored steel wire 7, the second PP rope 8 and the protective sleeve 9 are sequentially arranged outside the insulating layer 5, the winding directions of the first PP rope 6 and the second PP rope 8 are opposite to the winding direction of the armored steel wire 7, the torsion of the armored steel wire 7 can be balanced to a certain extent, the armored steel wire 7 is prevented from loosening, the PP rope is low in cost, light in weight, corrosion-resistant, wear-resistant and strong in stretching resistance, the protective sleeve 9 is sleeved outside the second PP rope 8, friction and animal biting are prevented, and the second PP rope is damaged. In the utility model, the conductor in the cable 1 is formed by twisting a plurality of copper cores, and the copper cores are oxygen-free, strong in conductivity and long in service life. Further, asphalt is poured on the second PP rope 8, so that the overall anti-corrosion and waterproof effects of the cable are improved.

As shown in fig. 1 to 2, the partition 32 is provided with the weight reducing holes 321, which not only reduces the weight, but also reduces the material cost of the packing 3.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (4)

1. The utility model provides a mining cable of steel wire armor which characterized in that: including a plurality of transversal circular shape cables of personally submitting, the central point that several cables closed is provided with a filler strip along its length direction, filler strip and the cable butt of periphery side still are provided with the obturator between the adjacent two the cable, the obturator adopts rubber and plastic material to make, the obturator includes arc board and cuts off, it sets up the inner arc side at the arc board to with cable butt, a plurality of support rings are arranged along cable length direction array, the cover is established the cable with the obturator outside, the support ring outside cover is equipped with the insulating layer, still set gradually first PP rope outside the insulating layer, the armor wire, second PP rope and protective sheath, first PP rope, armor wire and second PP rope all adopt the pencil winding of stranded, and the winding direction of first PP rope and second PP rope is the same, the winding direction of first PP rope and second armor wire winding direction opposite.

2. A wire-armored mining downhole cable according to claim 1, wherein: the partition is provided with a lightening hole.

3. A wire-armored mining downhole cable according to claim 1, wherein: the conductors in the cable are formed by twisting a plurality of copper cores.

4. A wire-armored mining downhole cable according to claim 1, wherein: asphalt is poured on the second PP rope.