CN213303718U

CN213303718U - Military vehicle-mounted polytetrafluoroethylene insulation shielding cable

Info

Publication number: CN213303718U
Application number: CN202022691572.2U
Authority: CN
Inventors: 袁剑; 李超; 韩春胜
Original assignee: Anhui Yuanzheng Cable Technology Co ltd
Current assignee: Anhui Yuanzheng Cable Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-05-28
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a vehicle-mounted polytetrafluoroethylene insulation shielding cable for military use, which comprises a cable core, an outer wrapping belt layer, a flame-retardant polyvinyl chloride inner sheath layer, an anti-torsion layer, a steel belt armor layer and a flame-retardant polyvinyl chloride outer sheath layer, wherein the outer wrapping belt layer, the flame-retardant polyvinyl chloride inner sheath layer, the anti-torsion layer, the steel belt armor layer and the flame-retardant polyvinyl chloride outer sheath layer are; the cable core comprises a reinforced core and four wire cores which are mutually twisted around the reinforced core, and an outer filling layer is arranged between the cable core and the outer wrapping belt layer; an anti-torsion core is embedded in the outer filling layer; the wire core comprises a guide core formed by mutually twisting copper conductors, and an inner wrapping tape layer, a tinned copper wire braided shielding layer and a polytetrafluoroethylene insulating layer which are sequentially wrapped outside the guide core; the anti-torsion layer comprises an elastic layer and anti-tear layers arranged on the inner side and the outer side of the elastic layer, and buffer grooves are formed in the inner surface and the outer surface of the elastic layer at intervals; arc plates are embedded in the inner sheath layer at intervals; the inside interval of oversheath layer is inlayed and is equipped with anti pressure core, and the surface interval of oversheath layer is provided with anti-torsion rib. The utility model discloses aim at solving current cable resistance to compression and the poor problem of antitorque bent ability.

Description

Military vehicle-mounted polytetrafluoroethylene insulation shielding cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a vehicle-mounted polytetrafluoroethylene insulation shielding cable for military use.

Background

A cable is a conductor made of one or more conductors insulated from each other and an outer insulating sheath that carries power or information from one location to another. The cable is of various types, including power cables, control cables, high-temperature cables, computer cables, signal cables, aluminum alloy cables and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. Military cables are cables applied to military.

The cable can receive the extrusion with twist reverse when using unavoidably, and current for military use cable all exists not enoughly in resistance to compression and anti torsion performance, consequently, when the cable received the extrusion with twist reverse, the inside structure of cable was damaged easily to influenced the normal use of cable, the life of cable is low.

To above technical problem, the utility model discloses an on-vehicle polytetrafluoroethylene insulation shielding cable of military vehicle, the utility model has the advantages of the compressive property of improvement cable, the antitorque commentaries on classics performance of improvement cable, the life of extension cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a vehicle polytetrafluoroethylene insulation shielding cable is carried to military use to solve among the prior art cable and all exist not enoughly on resistance to compression and anti torsional property, when the cable receives the extrusion and twists reverse, the inside structure of cable is damaged easily, thereby has influenced the normal use of cable, the technical problem such as the life hangs down of cable, the utility model has the advantages of improve the compressive property of cable, improve the antitorque commentaries on classics performance of cable, prolong the life of cable.

The utility model discloses a following technical scheme realizes: the utility model discloses a vehicle-mounted polytetrafluoroethylene insulation shielding cable for military use, which comprises a cable core, an outer wrapping belt layer, a flame-retardant polyvinyl chloride inner sheath layer, an anti-torsion layer, a steel belt armor layer and a flame-retardant polyvinyl chloride outer sheath layer, wherein the outer wrapping belt layer, the flame-retardant polyvinyl chloride inner sheath layer, the anti-torsion layer, the steel belt armor layer and the flame-retardant polyvinyl chloride outer sheath layer are; the cable core comprises a reinforced core and four wire cores which are mutually twisted around the reinforced core, and an outer filling layer is arranged between the cable core and the outer wrapping belt layer; an anti-torsion core is embedded in the outer filling layer and is uniformly distributed around the cable core at intervals by taking the reinforced core as a circle center; the cable core comprises a guide core formed by mutually twisting copper conductors, and an inner wrapping tape layer, a tinned copper wire braided shielding layer and a polytetrafluoroethylene insulating layer which are sequentially coated outside the guide core, wherein an inner filling layer is arranged between the guide core and the inner wrapping tape layer; the anti-torsion layer comprises an elastic layer and anti-tearing layers respectively arranged on the inner side and the outer side of the elastic layer, and buffer grooves are formed in the inner surface and the outer surface of the elastic layer at intervals; arc plates are embedded in the inner sheath layer at intervals; the inside interval of oversheath layer is inlayed and is equipped with anti pressure core, and the cross-section of anti pressure core is oval to the extension line of the major axis of oval anti pressure core intersects with the center of strengthening the core, and the surface interval of oversheath layer is provided with antitorque rib.

Preferably, in order to improve the tensile strength of the cable, a tensile core is embedded in the outer filling layer, and the tensile core and the wire core are mutually twisted around the reinforcing core.

Preferably, in order to improve the tensile strength of the cable, the tensile core is an aramid fiber rope.

Preferably, in order to improve the bearing and torsion resistance of the cable, the cross section of the torsion resistant rib is triangular.

Preferably, the inner wrapping belt layer and the outer wrapping belt layer are both formed by wrapping polyester films.

Preferably, the outer filling layer and the inner filling layer are both filled with alkali-free glass fiber ropes.

Preferably, in order to improve the torsion resistance of the cable, the anti-tear layer is woven by aramid fibers.

Preferably, in order to improve the torsion resistance of the cable, the material of the elastic layer is a thermoplastic elastomer material.

Preferably, in order to improve the compression resistance and torsion resistance of the cable, the reinforcing core, the torsion resistant core, the arc-shaped plates and the compression resistant core are made of high-density polyethylene materials.

Preferably, the torsion core has a diamond-shaped cross-section.

The utility model has the advantages of it is following: the utility model discloses a setting of antitorque layer, anti-pressure core, antitorque core, reinforcement core, arc and antitorque rib can improve the bearing capacity of cable to and overcome the cable when the cable receives the torsional force and appear violent deformation, thereby effectually prevented that the cable when receiving extrusion and torsional force, damaged condition appears in inner structure, has improved the resistance to compression and the antitorque commentaries on classics performance of cable, improves the life of cable.

Drawings

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

FIG. 2 is a cross-sectional view of a wire core;

fig. 3 is a cross-sectional view of the elastic layer.

In the figure: 1. a cable core; 11. a reinforcing core; 12. a wire core; 121. a guide core; 122. an inner wrapping tape layer; 123. a tinned copper wire braided shielding layer; 124. a polytetrafluoroethylene insulating layer; 2. wrapping a belt layer; 3. a flame retardant polyvinyl chloride inner jacket layer; 31. an arc-shaped plate; 4. an anti-torsion layer; 41. an elastic layer; 42. a tear resistant layer; 5. a steel tape armor layer; 6. a flame retardant polyvinyl chloride outer jacket layer; 61. a compression resistant core; 62. an anti-torsion rib; 7. an outer filling layer; 71. an anti-torque core; 72. a tensile core; 8. an inner filling layer; 9. a buffer tank.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

Embodiment 1 discloses a polytetrafluoroethylene insulation shielding cable for military use, which comprises a cable core 1, and an outer wrapping tape layer 2, a flame-retardant polyvinyl chloride inner sheath layer 3, an anti-torsion layer 4, a steel tape armor layer 5 and a flame-retardant polyvinyl chloride outer sheath layer 6 which are sequentially wrapped outside the cable core 1, as shown in fig. 1; the cable core 1 comprises a reinforced core 11 and four wire cores 12 which are mutually twisted around the reinforced core 11, and an outer filling layer 7 is arranged between the cable core 1 and the outer wrapping belt layer 2; an anti-torsion core 71 is embedded in the outer filling layer 7, the anti-torsion cores 71 are uniformly distributed around the cable core 1 at intervals by taking the reinforced core 11 as a circle center, the cross section of the anti-torsion core 71 is rhombic, a tensile core 72 is also embedded in the outer filling layer 7, the tensile core 72 and the cable core 12 are mutually twisted around the reinforced core 11, and the tensile core 72 is an aramid fiber rope; as shown in fig. 2, the wire core 12 includes a conductive core 121 formed by twisting copper conductors with each other, and an inner wrapping tape layer 122, a tinned copper wire braided shield layer 123 and a polytetrafluoroethylene insulation layer 124 which are sequentially wrapped outside the conductive core 121, wherein an inner filling layer 8 is arranged between the conductive core 121 and the inner wrapping tape layer 122; the anti-torsion layer 4 comprises an elastic layer 41 and anti-tear layers 42 respectively arranged on the inner side and the outer side of the elastic layer 41; as shown in fig. 1 and 3, the inner surface and the outer surface of the elastic layer 41 are both provided with the buffer grooves 9 at intervals, the elastic layer 41 is made of a thermoplastic elastomer material, and the anti-tear layer 42 is woven by aramid fibers; arc plates 31 are embedded in the inner sheath layer 3 at intervals; the inside interval of oversheath layer 6 inlays and is equipped with anti-pressure core 61, the cross-section of anti-pressure core 61 is oval, and the extension line of the major axis of oval anti-pressure core 61 intersects with the center of strengthening core 11, the surface interval of oversheath layer 6 is provided with antitorque rib 62, the cross-section of antitorque rib 62 is triangle-shaped, inner band layer 122 all adopts polyester film to wind the package with outer band layer 2 and forms, outer filling layer 7 all adopts alkali-free glass fiber rope to fill with inner filling layer 8, strengthen core 11, antitorque core 71, arc 31 and anti-pressure core 61 all adopt the high density polyethylene material to make.

The principle of the utility model is as follows: the utility model discloses inlay at the inside interval of outer sheath layer 6 and be equipped with anti-compression core 61, the cross-section of anti-compression core 61 is oval, and the extension line of the major axis of oval anti-compression core 61 intersects with the center of strengthening core 11, oval anti-compression core 61 has improved the bearing capacity of outer sheath layer 6, the surface interval of outer sheath layer 6 is provided with antitorque ribbing 62, the setting of antitorque ribbing 62 also can improve the compressive capacity of outer sheath layer 6, antitorque ribbing 62 can cushion the torsional force that receives simultaneously, overcome the cable wholly and appear acutely deforming, the middle part of cable core 1 sets up strengthening core 11, tensile core 72 and sinle silk 12 twist around strengthening core 11 each other together, thereby make the structure of cable core 1 more closely knit, the structural strength of cable core 1 has been improved, and then improve the bearing capacity and the antitorque performance of cable, the structural strength of cable core 71 between cable core 1 and the outer wrapping tape layer 2 further improves the inside structural strength of cable, further cushion pressure and torsional force that the cable received, and simultaneously, the inside of inner sheath layer 3 still is provided with arc 31, the setting of arc 31 improves the bearing capacity of inner sheath layer 3, and when the cable received the torsional force, overcome that violent deformation appears in inside cable core 1, still be provided with antitorque layer 4 between inner sheath layer 3 and the steel band armor 5, the elastic layer 41 in antitorque layer 4 middle part and the setting of buffer slot 9 on the inside and outside surface of elastic layer 41 can cushion pressure and torsional force that the cable received, overcome that violent deformation appears in the cable when receiving the torsional force, the anti-tear layer 42 of the inside and outside both sides of elastic layer 41 ties the structure of the inside of cable, overcome the inside violent deformation that appears of cable, and prevent the damage of cable inner structure, thereby, the utility model discloses the resistance to compression and the antitorque commentaries on classics performance of cable has been improved, the service life of the cable is prolonged.

Claims

1. A polytetrafluoroethylene insulation shielding cable carried by an military vehicle is characterized by comprising a cable core, and an outer wrapping tape layer, a flame-retardant polyvinyl chloride inner sheath layer, an anti-torsion layer, a steel tape armor layer and a flame-retardant polyvinyl chloride outer sheath layer which are sequentially wrapped outside the cable core;

the cable core comprises a reinforced core and four wire cores which are mutually twisted around the reinforced core, and an outer filling layer is arranged between the cable core and the outer wrapping belt layer;

anti-torsion cores are embedded in the outer filling layer and are uniformly distributed around the cable core at intervals by taking the reinforcing core as a circle center;

the cable core comprises a guide core formed by mutually twisting copper conductors, and an inner wrapping tape layer, a tinned copper wire braided shielding layer and a polytetrafluoroethylene insulating layer which are sequentially coated outside the guide core, wherein an inner filling layer is arranged between the guide core and the inner wrapping tape layer;

the anti-torsion layer comprises an elastic layer and anti-tear layers respectively arranged on the inner side and the outer side of the elastic layer, and buffer grooves are formed in the inner surface and the outer surface of the elastic layer at intervals;

arc-shaped plates are embedded in the inner sheath layer at intervals;

the inner part of the outer sheath layer is embedded with pressure-resistant cores at intervals, the cross sections of the pressure-resistant cores are oval, the extending lines of the long axes of the pressure-resistant cores are intersected with the center of the reinforcing core, and anti-torsion ribs are arranged on the outer surface of the outer sheath layer at intervals.

2. The polytetrafluoroethylene insulation shield cable for military use of claim 1 wherein a tensile core is further embedded in said outer filler layer, said tensile core and said wire core being twisted together around said strength core.

3. The polytetrafluoroethylene insulated shielded cable for military use of claim 2 wherein said tensile core is an aramid fiber rope.

4. The polytetrafluoroethylene insulated shielded cable for military use according to claim 1, wherein said torsion resistant ribs are triangular in cross-section.

5. The polytetrafluoroethylene insulation shielding cable for military use according to claim 1, wherein the inner wrapping layer and the outer wrapping layer are wrapped by polyester films.

6. The polytetrafluoroethylene insulated shielded cable for military use according to claim 1, wherein the outer filling layer and the inner filling layer are both filled with alkali-free glass fiber ropes.

7. The polytetrafluoroethylene insulated shielding cable for military use of claim 1, wherein said tear resistant layer is woven from aramid fibers.

8. The polytetrafluoroethylene insulated shielded cable for military use of claim 1 wherein the material of said resilient layer is a thermoplastic elastomer material.

9. The polytetrafluoroethylene insulated shielded cable for military use according to claim 1, wherein the reinforcing core, the torsion resistant core, the arc-shaped plate and the compression resistant core are made of high density polyethylene.

10. The polytetrafluoroethylene insulated shielded cable for military use according to claim 1, wherein said torsion-resistant core has a diamond-shaped cross-section.