CN112164514A - Winding photoelectric composite cable for mining engineering and production process - Google Patents

Abstract

The invention discloses a winding photoelectric composite cable for mining engineering, which is characterized in that: the cable comprises a main cable core, a monitoring cable core, center filling, a control cable core, an optical cable, a ground cable core, a reinforcing layer and an outer sheath. The main line core has 3, and 3 main line cores have the same structure. The monitoring wire core is provided with a monitoring wire core conductor and a monitoring wire core insulating layer in turn from inside to outside along the radial direction of the monitoring wire core. The monitoring wire core conductor is formed by twisting a nylon rope and a conductor. The center filling adopts a saddle-shaped core pad, and the saddle-shaped core pad is extruded outside the monitoring wire core by adopting a semi-conductive rubber or chloroprene rubber material. 3 main wire cores, control wire cores, optical cables, ground wire cores and center filling are stranded to form the cable. The control wire core, the optical cable and the ground wire core are respectively positioned in the gaps of the adjacent 2 main wire cores and are in mutual contact with the main wire cores. The outer sheath is made of chloroprene rubber materials and is wrapped outside the 3 main wire cores, the control wire core, the optical cable, the ground wire core and the center filler which are stranded into the cable. The reinforcement layer is disposed in the outer jacket.

Description

Winding photoelectric composite cable for mining engineering and production process

Technical Field

The invention relates to the technical field of power cables, in particular to a winding photoelectric composite cable for mining engineering and a production process thereof.

Background

At present, with the continuous improvement of the mechanization and automation degree of a coal mine, an electrical control technology has very important significance in coal mine production. With the continuous progress of intelligent production, the coal mining engineering also uses unmanned operation and intellectualization, a control wire core and an optical fiber unit are required to be added in a cable, the cable is in a moving winding bending state for a long time due to the complexity of the use working condition, the optical fiber unit and the control wire core in the moving cable are firstly easy to break, and therefore the mechanical life of the cable is very short.

Disclosure of Invention

The invention aims to provide a winding photoelectric composite cable for mining engineering and a production process, wherein the winding photoelectric composite cable is simple in structure and beneficial to prolonging the service life.

The basic technical scheme for realizing the purpose of the invention is as follows: the utility model provides a mining engineering is with coiling photoelectricity composite cable which structural feature is: the cable comprises a main cable core, a monitoring cable core, center filling, a control cable core, an optical cable, a ground cable core, a reinforcing layer and an outer sheath. The main line core has 3, and 3 main line cores have the same structure. The monitoring wire core is provided with a monitoring wire core conductor and a monitoring wire core insulating layer in turn from inside to outside along the radial direction of the monitoring wire core. The monitoring wire core conductor is formed by twisting a nylon rope and a conductor. The center filling adopts a saddle-shaped core pad, and the saddle-shaped core pad is extruded outside the monitoring wire core by adopting a semi-conductive rubber or chloroprene rubber material. 3 main wire cores, control wire cores, optical cables, ground wire cores and center filling are stranded to form the cable. The control wire core, the optical cable and the ground wire core are respectively positioned in the gaps of the adjacent 2 main wire cores and are in mutual contact with the main wire cores. The outer sheath is made of chloroprene rubber materials and is wrapped outside the 3 main wire cores, the control wire core, the optical cable, the ground wire core and the center filler which are stranded into the cable. The reinforcing layer is arranged in the outer sheath, the reinforcing layer is completely covered by the outer sheath, the reinforcing layer is woven in an aramid fiber yarn sparse weaving mode, and the weaving coverage rate is 5% -20%.

The technical scheme based on the basic technical scheme is as follows: the monitoring wire core conductor of the monitoring wire core is formed by twisting 1 nylon rope and 4 conductors, the twisting pitch diameter ratio is 8 times when the monitoring wire core conductor is twisted, 1 nylon rope is arranged in the 4 conductors in a 1+4 structure, and the nylon rope is made of 3/5/210D nylon wires.

The technical scheme based on the corresponding technical schemes is as follows: the 4 conductors of the monitoring wire core conductor are formed by twisting 6 tinned copper wires. The nylon rope is made of 3/5/210D nylon wire.

The technical scheme based on the corresponding technical schemes is as follows: and coating talcum powder on the outer surface of the monitoring wire core.

The technical scheme based on the corresponding technical schemes is as follows: the main line core includes main line core conductor, first shielding layer, insulating layer and second shielding layer. The main wire core conductor is formed by twisting a plurality of tinned copper wires, and the first shielding layer, the insulating layer and the second shielding layer are wrapped outside the main wire core conductor in a three-layer co-extrusion mode. The first shielding layer is a conductor shielding layer and is made of a semi-conductive rubber or chloroprene rubber material. The insulating layer is made of ethylene propylene rubber. The second shielding layer is an insulating shielding layer and is made of a semi-conductive rubber or chloroprene rubber material.

The technical scheme based on the corresponding technical schemes is as follows: the optical cable comprises 6 optical fibers, optical fiber filling strips, an optical fiber sheath and an optical fiber wrapping layer. The optical fiber filler strip is made of neoprene material, and the diameter of the optical fiber filler strip is the same as that of the optical fiber. 6 optical fibers are stranded around the optical fiber filling strips to form a cable, and then are extruded to wrap the optical fiber sheath, and the optical fiber sheath is made of thermoplastic polyester elastomer materials. The optical fiber wrapping layer is wrapped outside the optical fiber sheath by adopting a semi-conductive nylon tape, and the wrapping and covering rate of the optical fiber wrapping layer is 10-50%.

The technical scheme based on the corresponding technical schemes is as follows: the control sinle silk includes 6 control sinle silks, control sinle silk packing, control sinle silk shielding layer and control sinle silk around the covering. The 6 control wire cores have the same structure and respectively comprise a control wire core conductor and a control wire core insulating layer. The control wire core conductor is formed by twisting a plurality of tinned copper wires. The control wire core insulating layer is extruded outside the control wire core conductor by adopting fluoroplastic or thermoplastic polyester elastomer materials. The control wire core filler strip is made of chloroprene rubber materials, and the diameter of the control wire core filler strip is the same as that of the control wire core. And 6 control wire cores are stranded into a cable around the control wire core filling strip. The control wire core shielding layer is braided outside 6 control wire cores and wire core filling strips which are stranded into a cable by adopting tinned copper wires, and the braiding coverage rate is 88-95%. The control wire core wrapping layer is wrapped outside the control wire core shielding layer by adopting a semi-conductive nylon belt, and the wrapping covering rate is 10-50%.

The technical scheme based on the corresponding technical schemes is as follows: the ground wire core comprises a ground wire core conductor and a ground wire core wrapping layer. The ground wire core conductor is formed by twisting a plurality of tinned copper wires. The ground wire core wrapping layer is wrapped outside the ground wire core conductor by a semi-conductive nylon belt.

9. A production process of a winding photoelectric composite cable for mining engineering is characterized by comprising the following steps:

1) and twisting a plurality of tinned copper wire bundles and then twisting again to form the main wire core conductor.

2) The main wire core is manufactured by adopting a three-layer co-extrusion wrapping of a first shielding layer, an insulating layer and a second shielding layer outside a main wire core conductor. The first shielding layer is a conductor shielding layer and is made of a semi-conductive rubber or chloroprene rubber material. The insulating layer is made of ethylene propylene rubber. The second shielding layer is an insulating shielding layer and is made of a semi-conductive rubber or chloroprene rubber material.

3) The monitoring wire core conductor is formed by twisting 1 nylon rope and 4 conductors, the nylon rope is larger than the conductors in the paying-off tension center during twisting, and the extension of the nylon rope under tension is controlled within 3%. The conductor is formed by twisting 6 tinned copper wires with the thickness of 0.2 mm. The 4 conductors have adopted 4/6/0.2's compound hank structure, and every conductor is twisted by 6 tinned copper wires of 0.2mm promptly, and 4 strands are twisted again, and the twist pitch ratio is 8 times during compound hank, and the nylon rope adopts 3/5/210D, and every nylon rope is twisted by 5 nylon wires of 210D promptly, and 3 strands are twisted again and are formed the nylon rope to place 4 conductor centers with 1+4 structural style when 4 conductors twist again. And extruding ethylene propylene rubber outside the monitoring wire core conductor, and then carrying out continuous vulcanization to form a monitoring wire core insulating layer 2 so as to manufacture the monitoring wire core.

4) And extruding the semiconductive rubber or chloroprene rubber material outside the monitoring wire core to form a saddle-shaped pad core so as to prepare center filling, and coating talcum powder on the outer surface of the monitoring wire core before extrusion.

The saddle-shaped padding core is processed by adopting a pot-type vulcanizing device or a horizontal drying pipeline, and a large amount of talcum powder is put into a cooling water tank during extruding, so that the talcum powder is fully adhered to the surface of the saddle-shaped padding core.

5) The control wire core conductor is formed by twisting a plurality of tinned copper wires, and the control wire core insulating layer is wrapped outside the control wire core conductor by adopting fluoroplastic or thermoplastic polyester elastomer materials to form a control wire core. The control wire core filler strip is made of chloroprene rubber materials, and the diameter of the control wire core filler strip is the same as that of the control wire core. The control wire core filling strips and the 6 control wire cores are twisted by adopting a 0+6 structure, a layer of tinned copper wire is woven after the twisting to form a control wire core shielding layer, and the weaving coverage rate is 88-95%, so that the control wire core 4 is manufactured.

6) The optical fiber filler strip is made of neoprene material, and the diameter of the optical fiber filler strip is the same as that of the optical fiber. The optical fiber filling strips and the 6 optical fibers are in a 0+6 twisting mode, the optical fiber filling strips and the 6 optical fibers are extruded and wrapped with thermoplastic polyester elastomer materials to form an optical fiber sheath after twisting, and a layer of semiconductive nylon tape is wrapped to form an optical fiber wrapping layer after extrusion, so that the optical cable is manufactured. The outer diameters of the optical cable and the control wire core are the same.

7) The ground wire core conductor is formed by twisting a plurality of tinned copper wires. And the semi-conductive nylon belt is wrapped outside the ground wire core conductor to form a ground wire core wrapping layer, so that the ground wire core is manufactured. The outer diameters of the ground wire core and the control wire core are the same.

8) The cage type cabling machine is used for stranding 3 main wire cores, control wire cores, optical cables, ground wire cores and center filling, the main wire cores rotate in a cabling mode, the feeding device of the saddle-shaped pad cores filled in the centers synchronously rotate with the rotation direction of the stranding cage, and each cambered surface of the saddle-shaped pad cores is guaranteed to be attached to the surfaces of the corresponding main wire cores, the control wire cores, the optical cables and the ground wire cores.

The feeding end and the discharging end at two ends of a central hollow pipe of the feeding device of the saddle-shaped core pad are respectively provided with a first positioning die and a second positioning die. The saddle-shaped core pad is guided by the first positioning die and the second positioning die to be coaxial with the cage-type cabling machine when entering the cage-type cabling machine.

The first positioning die is disc-shaped, and the center of the first positioning die is provided with a wire passing through hole which penetrates through the two ends of the first positioning die and corresponds to the saddle-shaped core pad in shape along the axial direction of the first positioning die.

The second positioning die is an integrated piece, and comprises a cylindrical feeding end and a conical discharge end, wherein the central part is provided with a wire passing through hole which penetrates through the two ends of the central part in the axial direction and corresponds to the saddle-shaped core pad in shape, the discharge end adopts a conical twisting die which is closer to the cage-type cable former when the saddle-shaped core pad is discharged, and the positioning is more accurate.

9) The cable is characterized in that an outer sheath is formed by extruding and wrapping 3 main wire cores, a control wire core, an optical cable, a ground wire core and a center filling layer which are stranded into a cable by adopting chloroprene rubber materials, a reinforcing layer is arranged in the outer sheath, the reinforcing layer is woven by adopting an aramid fiber sparse weaving mode, the weaving coverage rate is 5-20%, and the reinforcing layer is completely coated by the outer sheath.

The invention has the following beneficial effects: (1) according to the optical cable for winding the photoelectric composite cable for mining engineering, the optical fiber filling strips and the 6 multimode branch optical fibers are twisted in a 0+6 twisting mode, the thermoplastic polyester elastomer material is extruded and wrapped to form the optical fiber sheath after twisting, the overall outer diameter of the optical cable is consistent with the outer diameters of the control core and the ground wire core, and a layer of semi-conductive nylon belt is wrapped after extrusion, so that fault current can be effectively connected to the ground wire core when a fault occurs. Compared with the optical cable commonly used at present, the optical cable is mostly directly dragged by a plurality of optical fibers, and the bending performance of the independent branch optical fiber is far superior to that of the conventional structure.

(2) According to the winding photoelectric composite cable for mining engineering, the control wire cores are twisted and then braided with a layer of tinned copper wire for shielding, so that interference of the main wire core on the control wire cores is prevented. The control core is placed as a unit between 2 adjacent main core, and when its control core can ensure the trouble around the covering, fault current can effectual access earth core.

(3) The monitoring wire core conductor of the winding photoelectric composite cable for mining engineering is formed by twisting nylon ropes and conductors in a composite mode, the nylon rope is required to be larger than a conductor strand in a paying-off tension center during twisting, the tensile extension of the nylon rope is controlled within 3%, the conductor is in a composite twisting structure of 4/6/0.2, the twisting pitch ratio is 8 times during composite twisting, the 3/5/210D nylon rope is selected as a reinforcing element and placed in the center of the conductor in a structural mode of 1+4 during composite twisting of the conductor, and tests show that nylon wires with the elongation rate larger than 25% can meet the problem that the conductor cannot break when being stretched by 15%, and the service life of the cable is prolonged.

(4) The surface of the monitoring core of the winding photoelectric composite cable for mining engineering is coated with the talcum powder before center filling before extrusion, and the cable can be freely adapted when winding and bending are used.

(5) According to the winding photoelectric composite cable for mining engineering, the first positioning die and the second positioning die are respectively arranged at the feeding end and the discharging end of the two ends of the central hollow pipe of the feeding device of the saddle-shaped core pad, and the saddle-shaped core pad is guided by the first positioning die and the second positioning die and is coaxial with the saddle-shaped core pad when entering the cage-type cabling machine; the discharge end of the second positioning die is conical, so that the saddle-shaped core cushion is closer to a cage-type cable former during discharging, the positioning is more accurate, corresponding cambered surfaces of the second positioning die are attached to the surfaces of corresponding main wire cores, control wire cores, optical cables and ground wire cores through the die during twisting, and the cable forming tension is uniform and good.

(6) The outer sheath of the winding photoelectric composite cable for mining engineering is provided with the reinforcing layer, the reinforcing layer is woven by aramid fibers, the reinforcing layer is softer than a conventional cable which is woven by using tinned copper wires or steel wires, the tensile property of the whole cable is greatly improved, the service life of the cable is prolonged, meanwhile, the reinforcing layer also has a warning effect, the outer sheath is abraded and thinned due to friction between the cable and between the cable and equipment or the ground in the process that the cable is frequently moved and bent, when the outer sheath is abraded until the aramid fibers of the reinforcing layer are seen, the cable can be replaced or maintained, and unnecessary consequences caused by further damage to the cable are prevented.

(7) The winding photoelectric composite cable control wire core for mining engineering adopts a new structure that 6 control wire cores are stranded around a control wire core filling strip to form a cable, the filling strip is adopted in the middle of the cable and the wire cores are not arranged (the wire cores at the center are not arranged because the wire cores at the center are easily bent and damaged in the traditional method of adopting the wire cores at the center), the use reliability of the cable is further improved, and the use bending and dragging times of the cable are improved.

(8) The outer diameters of the control wire core, the optical cable and the ground wire core of the winding photoelectric composite cable for mining engineering are the same, so that the overall roundness of the cable is facilitated, and the structure is stable.

Drawings

Fig. 1 is a schematic structural diagram of a coiled photoelectric composite cable for mining engineering according to the present invention.

Fig. 2 is an enlarged schematic view of the optical cable of fig. 1.

Fig. 3 is an enlarged structural schematic diagram of the control wire core in fig. 1.

Fig. 4 is a schematic structural view of the first positioning mold.

Fig. 5 is a schematic structural view of a second positioning mold.

Fig. 6 is a schematic view when viewed from the rear of fig. 5.

The reference numbers in the drawings are:

a main wire core 1, a main wire core conductor 1-1, a first shielding layer 1-2, an insulating layer 1-3, a second shielding layer 1-4,

a monitor core 2, a monitor core conductor 2-1, a monitor core insulation layer 2-2,

the center-fill 3 is provided in the center,

a control wire core 4, a control wire core 4-1, a control wire core conductor 4-11, a control wire core insulating layer 4-12, a control wire core filler strip 4-2, a control wire core shielding layer 4-3, a control wire core wrapping layer 4-4,

an optical cable 5, an optical fiber 5-1, an optical fiber filler strip 5-2, an optical fiber sheath 5-3, an optical fiber wrapping layer 5-4,

a ground wire core 6, a ground wire core conductor 6-1, a ground wire core wrapping layer 6-2,

the reinforcing layer (7) is provided with,

the outer jacket 8 is provided with a cover,

a first positioning die 91 and a second positioning die 92.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The orientation of the present invention is described according to the orientation shown in fig. 1, that is, the up-down and left-right directions shown in fig. 1 are the up-down and left-right directions described, and the side facing fig. 1 is the front side and the side facing away from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention or for simplifying the description, but do not indicate that a particular orientation must be present.

(example 1)

Referring to fig. 1, the dragging photoelectric composite cable for the above-ground mining engineering comprises a main wire core 1, a monitoring wire core 2, a center filling 3, a control wire core 4, an optical cable 5, a ground wire core 6, a reinforcing layer 7 and an outer sheath 8.

Referring to fig. 1, the main wire core 1 has 3 main wire cores 1, and the 3 main wire cores 1 have the same structure and respectively comprise a main wire core conductor 1-1, a first shielding layer 1-2, an insulating layer 1-3 and a second shielding layer 1-4. The main wire core conductor 1-1 is formed by twisting a plurality of tinned copper wires, and the main wire core conductor 1-1 meets the requirement of GJB 1916. The first shielding layer 1-2, the insulating layer 1-3 and the second shielding layer 1-4 are wrapped outside the main wire core conductor 1-1 by three-layer co-extrusion. The first shielding layer 1-2 is a conductor shielding layer, and the first shielding layer 1-2 is made of a semi-conductive rubber or chloroprene rubber material; the insulating layers 1-3 are made of ethylene propylene rubber materials; the second shielding layer 1-4 is an insulating shielding layer, and the second shielding layer 1-4 is made of a semi-conductive rubber or chloroprene rubber material.

Referring to fig. 1, the monitoring core 2 is provided with a monitoring core conductor 2-1 and a monitoring core insulating layer 2-2 in sequence from inside to outside along the radial direction thereof. The monitoring wire core conductor 2-1 is formed by twisting 1 nylon rope and 4 conductors repeatedly, the twisting pitch diameter ratio is 8 times during the repeated twisting, the conductor is formed by twisting 6 tinned copper wires, and the 1 nylon rope is arranged in the 4 conductors in a 1+4 structure. The monitoring wire core insulating layer 2-2 is made of ethylene propylene rubber with the hardness of 60A-80A through continuous vulcanization. The nylon rope is made of 3/5/210D nylon wires, namely each nylon rope is formed by twisting 5 210D nylon wires and then twisting 3 nylon wires to form the nylon rope.

The center filling 3 adopts a saddle-shaped core cushion. The saddle-shaped core pad is wrapped outside the monitoring wire core 2 in a squeezing mode by adopting a semi-conductive rubber or chloroprene rubber material, and the outer surface of the monitoring wire core 2 is coated with talcum powder.

Referring to fig. 1 and 3, the control wire core 4 comprises 6 control wire cores 4-1, a control wire core filler strip 4-2, a control wire core shielding layer 4-3 and a control wire core wrapping layer 4-4. The 6 control wire cores 4-1 have the same structure and comprise control wire core conductors 4-11 and control wire core insulating layers 4-12. The control wire core conductors 4-11 are formed by twisting a plurality of tinned copper wires. The control wire core insulating layer 4-12 is wrapped outside the control wire core conductor 4-11 by adopting fluoroplastic or thermoplastic polyester elastomer (TPEE) material, and the control wire core conductor 4-11 is wrapped by adopting thermoplastic polyester elastomer material in the embodiment. The control wire core filler strip 4-2 is made of neoprene rubber materials, and the diameter of the control wire core filler strip 4-2 is the same as that of the control wire core 4-1. 6 control wire cores 4-1 are stranded into a cable around the control wire core filler strip 4-2. The control wire core shielding layer 4-3 is braided outside the 6 control wire cores 4-1 and the wire core filler strips 4-2 which are stranded into a cable by adopting tinned copper wires, the braiding coverage rate is 88-95%, and the embodiment is 90%. The control wire core wrapping layer 4-4 is wrapped outside the control wire core shielding layer 4-3 by adopting a semi-conductive nylon tape, the wrapping and covering rate is 10-50%, and the embodiment is 30%.

Referring to fig. 1 and 2, the optical cable 5 comprises 6 optical fibers 5-1, optical fiber filler strips 5-2, an optical fiber sheath 5-3 and an optical fiber wrapping 5-4. The 6 optical fibers 5-1 all adopt A1b multi-mode tight-buffered branch optical fibers. The optical fiber filler strip 5-2 is made of neoprene material, and the diameter of the optical fiber filler strip 5-2 is the same as that of the optical fiber 5-1. 6 optical fibers 5-1 are stranded around the optical fiber filling strips 5-2 to form a cable, and then the cable is extruded to wrap the optical fiber sheath 5-3, wherein the optical fiber sheath 5-3 is made of thermoplastic polyester elastomer (TPEE) material. The optical fiber wrapping layer 5-4 is wrapped outside the optical fiber sheath 5-3 by adopting a semi-conductive nylon tape, and the wrapping coverage rate of the optical fiber wrapping layer 5-4 is 10-50%, and the embodiment is 30%.

The ground wire core 6 comprises a ground wire core conductor 6-1 and a ground wire core wrapping layer 6-2. The ground wire core conductor 6-1 is formed by twisting a plurality of tinned copper wires. The ground core conductor 6-1 meets the requirements of GJB 1916. The ground wire core wrapping layer 6-2 is wrapped outside the ground wire core conductor 6-1 through a semi-conductive nylon tape.

The outer diameters of the control wire core 4, the optical cable 5 and the ground wire core 6 are the same.

3 main wire cores 1, a control wire core 4, an optical cable 5, a ground wire core 6 and a center filling 3 are stranded to form a cable. The control wire core 4, the optical cable 5 and the ground wire core 6 are respectively positioned in the gaps of the adjacent 2 main wire cores 1 and are mutually contacted with the main wire cores.

The outer sheath 8 is made of chloroprene rubber materials and is wrapped outside the 3 main wire cores 1, the control wire cores 4, the optical cable 5, the ground wire core 6 and the center filling 3 which are stranded into a cable in an extruding mode, the reinforcing layer 7 is arranged in the outer sheath 8, the reinforcing layer 7 is completely wrapped by the outer sheath 8, the reinforcing layer 7 is woven in an aramid fiber sparse weaving mode, the weaving coverage rate is 5% -20%, and the embodiment is 10%.

Referring to fig. 1 to 5, the production process of the winding and towing photoelectric composite cable for the above-ground mining engineering comprises the following steps:

1) and twisting a plurality of tinned copper wire bundles and then twisting again to form the main wire core conductor 1-1.

2) The main wire core 1 is manufactured by adopting three-layer co-extrusion to wrap a first shielding layer 1-2, an insulating layer 1-3 and a second shielding layer 1-4 outside a main wire core conductor 1-1. The first shielding layer 1-2 is a conductor shielding layer, and the first shielding layer 1-2 is made of a semi-conductive rubber or chloroprene rubber material; the insulating layers 1-3 are made of ethylene propylene rubber materials; the second shielding layer 1-4 is an insulating shielding layer, and the second shielding layer 1-4 is made of a semi-conductive rubber or chloroprene rubber material.

3) The monitoring core conductor 2-1 is formed by twisting 1 nylon rope and 4 conductors, the nylon rope is larger than the conductors in the paying-off tension center during twisting, and the extension of the nylon rope under tension is controlled within 3%. The conductor is formed by twisting 6 tinned copper wires with the thickness of 0.2 mm. The 4 conductors have adopted 4/6/0.2's compound hank structure, and every conductor is twisted by 6 tinned copper wires of 0.2mm promptly, and 4 strands are twisted again, and the twist pitch ratio is 8 times during compound hank, and the nylon rope adopts 3/5/210D, and every nylon rope is twisted by 5 nylon wires of 210D promptly, and 3 strands are twisted again and are formed the nylon rope to place 4 conductor centers with 1+4 structural style when 4 conductors twist again. And extruding ethylene propylene rubber outside the monitoring wire core conductor 2-1, and then carrying out continuous vulcanization to form a monitoring wire core insulating layer 2-2 so as to prepare the monitoring wire core 2.

4) The semi-conductive rubber or chloroprene rubber material is extruded and wrapped outside the monitoring wire core 2 to form a saddle-shaped padding core, so as to prepare a center filling 3, and the outer surface of the monitoring wire core 2 is coated with talcum powder before extrusion.

The saddle-shaped padding core is processed by adopting a pot-type vulcanizing device or a horizontal drying pipeline, and a large amount of talcum powder is put into a cooling water tank during extruding, so that the talcum powder is fully adhered to the surface of the saddle-shaped padding core.

5) The control wire core conductor 4-11 is formed by twisting a plurality of tinned copper wires, and the control wire core insulating layer 4-12 is formed by extruding fluoroplastic or thermoplastic polyester elastomer (TPEE) materials outside the control wire core conductor 4-11 to form the control wire core 4-1. The control wire core filler strip 4-2 is made of neoprene rubber materials, and the diameter of the control wire core filler strip 4-2 is the same as that of the control wire core 4-1. The control wire core filling strips 4-2 and the 6 control wire cores 4-1 are stranded by adopting a 0+6 structure, a layer of tinned copper wire is woven after the stranding to form a control wire core shielding layer 4-3, the weaving coverage rate is 88% to 95%, and the weaving coverage rate is 90% in the embodiment, so that the control wire core 4 is manufactured.

6) The optical fiber filler strip 5-2 is made of neoprene material, and the diameter of the optical fiber filler strip 5-2 is the same as that of the optical fiber 5-1. The optical fiber filling strips 5-2 and the 6 optical fibers 5-1 adopt a 0+6 twisting mode, a thermoplastic polyester elastomer material is extruded to form an optical fiber sheath 5-3 after twisting, and a layer of semiconductive nylon belt is wrapped to form an optical fiber wrapping layer 5-4 after extrusion, so that the optical cable 5 is manufactured. The outer diameters of the optical cable 5 and the control wire core 4 are the same.

7) The ground wire core conductor 6-1 is formed by twisting a plurality of tinned copper wires. And a semiconductive nylon belt is wrapped outside the ground wire core conductor 6-1 to form a ground wire core wrapping layer 6-2, so that the ground wire core 6 is manufactured. The ground wire core 6 and the control wire core 4 have the same outer diameter.

8) The cage type cabling machine is used for stranding 3 main wire cores 1, control wire cores 4, optical cables 5, ground wire cores 6 and center filling 3, the main wire cores 1 rotate in a cabling mode, meanwhile, the feeding device of the saddle-shaped pad cores of the center filling 3 synchronously rotates with the rotation direction of the stranding cage, and each cambered surface of the saddle-shaped pad cores is guaranteed to be attached to the surfaces of the corresponding main wire cores 1, control wire cores 4, optical cables 5 and ground wire cores 6.

The feeding end and the discharging end at two ends of a central hollow pipe of the feeding device of the saddle-shaped core pad are respectively provided with a first positioning die 91 and a second positioning die 92. The saddle-shaped core mat is guided by the first positioning die 91 and the second positioning die 92 so as to be coaxial with the cage cabling machine when entering the cage cabling machine.

The first positioning mold 91 is disc-shaped, and the center is provided with a through hole which penetrates through the two ends of the first positioning mold along the axial direction and corresponds to the saddle-shaped core pad in shape.

Second positioning die 92 is an organic whole, including being cylindric feed end and being coniform discharge end, and central authorities are equipped with along its axial and run through its both ends with the corresponding line through-hole of crossing of shape of saddle-shaped core pad, more are close the transposition mould of cage cabling machine when the discharge end adopts coniform to enable the ejection of compact of saddle-shaped core pad, and the location is more accurate.

9) The cable is characterized in that 3 main wire cores 1, control wire cores 4, optical cables 5, ground wire cores 6 and center fillers 3 which are stranded into a cable are wrapped with chloroprene rubber materials in an extruding mode to form an outer sheath 8, a reinforcing layer 7 is arranged in the outer sheath 8, the reinforcing layer 7 is woven in an aramid fiber sparse weaving mode, the weaving coverage rate is 5% -20%, the embodiment is 10%, and the reinforcing layer 7 is completely wrapped by the outer sheath 8.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a mining engineering is with rolling up photoelectricity composite cable which characterized in that: the cable comprises a main cable core, a monitoring cable core, center filling, a control cable core, an optical cable, a ground cable core, a reinforcing layer and an outer sheath; the number of the main wire cores is 3, and the 3 main wire cores have the same structure; the monitoring wire core is provided with a monitoring wire core conductor and a monitoring wire core insulating layer in sequence from inside to outside along the radial direction of the monitoring wire core; the monitoring wire core conductor is formed by twisting a nylon rope and a conductor; the center filling adopts a saddle-shaped core pad, and the saddle-shaped core pad is extruded outside the monitoring wire core by adopting a semi-conductive rubber or chloroprene rubber material; 3 main wire cores, control wire cores, optical cables, ground wire cores and center filling are stranded to form a cable; the control wire core, the optical cable and the ground wire core are respectively positioned in the gaps of the adjacent 2 main wire cores and are in mutual contact with the main wire cores; the outer sheath is wrapped outside 3 main wire cores, a control wire core, an optical cable, a ground wire core and center filling which are stranded into a cable in a squeezing mode by adopting chloroprene rubber materials; the reinforcing layer is arranged in the outer sheath, the reinforcing layer is completely covered by the outer sheath, the reinforcing layer is woven in an aramid fiber yarn sparse weaving mode, and the weaving coverage rate is 5% -20%.

2. The wound photovoltaic composite cable for mining engineering according to claim 1, characterized in that: the monitoring wire core conductor of the monitoring wire core is formed by twisting 1 nylon rope and 4 conductors, the twisting pitch diameter ratio is 8 times when the monitoring wire core conductor is twisted, 1 nylon rope is arranged in the 4 conductors in a 1+4 structure, and the nylon rope is made of 3/5/210D nylon wires.

3. The wound photovoltaic composite cable for mining engineering according to claim 2, characterized in that: the 4 conductors of the monitoring core conductor are all formed by twisting 6 tinned copper wires; the nylon rope is made of 3/5/210D nylon wire.

4. The wound photovoltaic composite cable for mining engineering according to one of claims 1 to 3, characterized in that: and coating talcum powder on the outer surface of the monitoring wire core.

5. The wound photovoltaic composite cable for mining engineering according to one of claims 1 to 3, characterized in that: the main wire core comprises a main wire core conductor, a first shielding layer, an insulating layer and a second shielding layer; the main wire core conductor is formed by twisting a plurality of tinned copper wires, and the first shielding layer, the insulating layer and the second shielding layer are wrapped outside the main wire core conductor by three-layer co-extrusion; the first shielding layer is a conductor shielding layer and is made of a semi-conductive rubber or chloroprene rubber material; the insulating layer is made of ethylene propylene rubber; the second shielding layer is an insulating shielding layer and is made of a semi-conductive rubber or chloroprene rubber material.

6. The wound photovoltaic composite cable for mining engineering according to one of claims 1 to 3, characterized in that: the optical cable comprises 6 optical fibers, an optical fiber filling strip, an optical fiber sheath and an optical fiber wrapping layer; the optical fiber filling strip is made of chloroprene rubber materials, and the diameter of the optical fiber filling strip is the same as that of the optical fiber; 6 optical fibers are stranded into a cable around the optical fiber filling strip and then extruded to wrap an optical fiber sheath, and the optical fiber sheath is made of a thermoplastic polyester elastomer material; the optical fiber wrapping layer is wrapped outside the optical fiber sheath by adopting a semi-conductive nylon tape, and the wrapping and covering rate of the optical fiber wrapping layer is 10-50%.

7. The wound photovoltaic composite cable for mining engineering according to one of claims 1 to 3, characterized in that: the control wire core comprises 6 control wire cores, a control wire core filling strip, a control wire core shielding layer and a control wire core wrapping layer; the 6 control wire cores have the same structure and respectively comprise a control wire core conductor and a control wire core insulating layer; the control wire core conductor is formed by twisting a plurality of tinned copper wires; the control wire core insulating layer is extruded outside the control wire core conductor by adopting fluoroplastic or thermoplastic polyester elastomer material; the control wire core filler strip is made of chloroprene rubber materials, and the diameter of the control wire core filler strip is the same as that of the control wire core; 6 control wire cores are stranded into a cable around the control wire core filling strip; the control wire core shielding layer is braided outside the 6 control wire cores and the wire core filling strips which are stranded into a cable by adopting tinned copper wires, and the braiding coverage rate is 88-95%; the control wire core wrapping layer is wrapped outside the control wire core shielding layer by adopting a semi-conductive nylon belt, and the wrapping covering rate is 10-50%.

8. The wound photovoltaic composite cable for mining engineering according to one of claims 1 to 3, characterized in that: the ground wire core comprises a ground wire core conductor and a ground wire core wrapping layer; the ground wire core conductor is formed by twisting a plurality of tinned copper wires; the ground wire core wrapping layer is wrapped outside the ground wire core conductor by a semi-conductive nylon belt.

9. A production process of a winding photoelectric composite cable for mining engineering is characterized by comprising the following steps:

1) twisting a plurality of tinned copper wire bundles and then twisting again to form a main wire core conductor;

2) a first shielding layer, an insulating layer and a second shielding layer are extruded outside a main wire core conductor by adopting three layers to manufacture a main wire core; the first shielding layer is a conductor shielding layer and is made of a semi-conductive rubber or chloroprene rubber material; the insulating layer is made of ethylene propylene rubber; the second shielding layer is an insulating shielding layer and is made of a semi-conductive rubber or chloroprene rubber material;

3) the monitoring wire core conductor is formed by twisting 1 nylon rope and 4 conductors, the nylon rope is larger than the conductors in the paying-off tension center during twisting, and the extension of the nylon rope under tension is controlled within 3%; the conductor is formed by twisting 6 tinned copper wires with the thickness of 0.2 mm; the 4 conductors adopt an 4/6/0.2 compound twisting structure, namely each conductor is twisted by 6 tinned copper wires with the diameter ratio of 0.2mm, then 4 strands are twisted, the twisting pitch ratio is 8 times during compound twisting, the nylon rope adopts 3/5/210D, namely each nylon rope is twisted by 5 210D nylon wires, then 3 strands are twisted to form the nylon rope, and the nylon rope is placed in the center of 4 conductors in a 1+4 structural form during compound twisting of 4 conductors; extruding ethylene propylene rubber outside a monitoring wire core conductor, and then carrying out continuous vulcanization to form a monitoring wire core insulating layer 2 so as to manufacture a monitoring wire core;

4) extruding and wrapping the semiconductive rubber or chloroprene rubber material outside the monitoring wire core to form a saddle-shaped pad core so as to prepare center filling, and coating talcum powder on the outer surface of the monitoring wire core before extrusion;

the saddle-shaped padding core is processed by adopting a pot-type vulcanizing device or a horizontal drying pipeline, and a large amount of talcum powder is put into a cooling water tank during extruding, so that the talcum powder is fully adhered to the surface of the saddle-shaped padding core;

5) the control wire core conductor is formed by twisting a plurality of tinned copper wires, and the control wire core insulating layer is extruded outside the control wire core conductor by adopting a fluoroplastic or thermoplastic polyester elastomer material to form a control wire core; the control wire core filler strip is made of chloroprene rubber materials, and the diameter of the control wire core filler strip is the same as that of the control wire core; the control wire core filling strips and 6 control wire cores are twisted by adopting a 0+6 structure, a layer of tinned copper wire is woven after the twisting to form a control wire core shielding layer, and the weaving coverage rate is 88-95%, so that a control wire core 4 is manufactured;

6) the optical fiber filling strip is made of chloroprene rubber materials, and the diameter of the optical fiber filling strip is the same as that of the optical fiber; the optical fiber filling strips and the 6 optical fibers are in a 0+6 twisting type, a thermoplastic polyester elastomer material is extruded and wrapped to form an optical fiber sheath after twisting, and a layer of semiconductive nylon tape is wrapped to form an optical fiber wrapping layer after extrusion, so that the optical cable is manufactured; the outer diameters of the optical cable and the control wire core are the same;

7) the ground wire core conductor is formed by twisting a plurality of tinned copper wires; a semi-conductive nylon belt is wrapped outside the ground wire core conductor to form a ground wire core wrapping layer, so that a ground wire core is manufactured; the outer diameters of the ground wire core and the control wire core are the same;

8) stranding 3 main wire cores, control wire cores, optical cables, ground wire cores and center filling by using a cage type cabling machine, synchronously rotating a feeding device of a saddle-shaped cushion core filled in the center and the rotation direction of a stranding cage while the main wire cores rotate in a cabling mode, and ensuring that each cambered surface of the saddle-shaped cushion core is attached to the surfaces of the corresponding main wire cores, control wire cores, optical cables and ground wire cores;

the feeding end and the discharging end at two ends of a central hollow pipe of the feeding device of the saddle-shaped core cushion are respectively provided with a first positioning die and a second positioning die; guiding the saddle-shaped core pad through a first positioning die and a second positioning die to enable the saddle-shaped core pad to be coaxial with the cage-type cabling machine when entering the cage-type cabling machine;

the first positioning die is disc-shaped, and the center of the first positioning die is provided with a wire passing through hole which penetrates through the two ends of the first positioning die along the axial direction of the first positioning die and corresponds to the saddle-shaped core pad in shape;

the second positioning die is an integrated piece and comprises a cylindrical feeding end and a conical discharging end, the center of the second positioning die is provided with a wire passing through hole which penetrates through the two ends of the second positioning die along the axial direction of the second positioning die and corresponds to the saddle-shaped core pad in shape, the discharging end adopts a conical twisting die which can enable the saddle-shaped core pad to be closer to a cage-type cabling machine when discharging materials, and the positioning is more accurate;

9) the cable is characterized in that an outer sheath is formed by extruding and wrapping 3 main wire cores, a control wire core, an optical cable, a ground wire core and a center filling layer which are stranded into a cable by adopting chloroprene rubber materials, a reinforcing layer is arranged in the outer sheath, the reinforcing layer is woven by adopting an aramid fiber sparse weaving mode, the weaving coverage rate is 5-20%, and the reinforcing layer is completely coated by the outer sheath.

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