Midget control cable primarily used for wire communication line of small-size controlled missiles incorporating command control system and method for its manufacture

FIELD: electrical engineering including cable engineering; midget control cables for wire communication lines of small-size missiles and their manufacturing process.

SUBSTANCE: proposed midget control cable has two electrically insulated enameled copper conductors (current-carrying conductors), one strengthening complex thread of cross lea securing winding of three polyamide threads forming thread assembly, as well as four strengthening complex threads placed on top of cross securing winding in parallel with copper conductors, two-layer lea winding of two polyamide threads wound in opposite directions, and one complex thread. Proposed method for manufacturing midget control cable includes manufacture of thread assembly followed by finishing midget control cable for which purpose four strengthening complex threads are arranged in parallel with thread assembly and two-layer winding is placed overall.

EFFECT: improved electrical and mechanical characteristics, ability of using cable immersed in water including sea water.

2 cl, 3 dwg

 

The invention relates to one of the branches of the electrical industry - cable technique, and more particularly to a miniature electrical control cables for wired line communication (PLC) small guided missiles with the command control system and method of its manufacture.

Currently, widespread small guided missiles, which for remote telecommunications and transmission of control commands from the ground control equipment (NAU) on Board the missile uses a wire communication line in the form of a two conductor electrical cable. Thus, produced NAU control commands are sent on Board the guided missile, which ensures the correction of its spatial position in the process of targeting during the entire flight time.

Modern conditions of use of guided missiles, which have a PLC dictate rather strict technical requirements for this type of weapons. It is, first and foremost, ensuring the minimum outer diameter of the cable winding PLC, providing a minimum mass of winding PLC with simultaneous maximum length of electrical cable, according to the strength of the cable PLC highest standards of effort to break. Also quite high requirements when the m characteristics cable PLC, especially in extreme conditions of combat use of guided missiles.

Known electrical cable [1], providing high performance in terms of periodic improving the mechanical and temperature effects on the external environment, which is an analog of the present invention. This cable contains located in the same plane as the conductors, each of which has a two-layer insulation compositions based on high density polyethylene (HDPE), a pillow under armor in the form of rubberized fabric and the overall armor of the steel strip, thus it contains an additional element isolation made of two PTFE tape, applied with an overlap of 30-50% on the inner insulation layer of the composition on the basis of PAST.

The method of manufacture described cable is as follows. The copper core cross-section 16 mm2isolate composition on the basis of PMT on the extruder with a diameter of start 125 mm, then insulating the car put two strips of Teflon with an overlap of 30-50%, and then isolate the second layer of PMT. On the insulated cores are laid in the same plane, put a pillow made of rubberized fabric and armor of steel tape.

The design of the cable while providing high electrical and mechanical strength characteristics has a large mass, invalid DL is used in PLC guided missiles.

Known miniature electric cable [2], taken as a prototype of the present invention. This cable is designed for control systems, data transmission and processing. The cable contains at least one pair of twisted between a conductive insulated conductors and the sheath. As the insulating material can be used galogensoderjasimi polymer - PVC or halogen-free material based on polyolefins - polyethylene and its copolymers or propylene. The proposed dependence of the thickness of the insulation from the pitch lived diameter lived and relative permittivity of the insulating material allowed while minimizing the Diametric dimensions of the cable to increase its capacitive workload.

However, the proposed design does not allow to provide the required parameters of the cable for small guided missiles for the minimum diameter of the cable, the minimum mass of winding PLC, the tensile strength and electrical parameters, especially in salt water.

The technical object of the present invention is to provide a construction of miniature control cable for PLC small guided missiles and method of its manufacture with neobhodimymi electrical and mechanical characteristics, t is the train with its work under the direct immersion in water, including marine.

The technical problem solved by the invention, in which:

1. Miniature cable management, mainly for wired communication line small guided missiles with a command control system, consisting of two electrically insulated from each other enamelled copper conductors (current-carrying conductors), one reinforcing multifilament yarn synthetic high-molecular compounds nominal linear density of 6.3 Tex, parallel copper conductors, cross-fastening winding pasmo of three nylon threads nominal linear density of 5 Tex, forming a harness, and four reinforcing filament yarn nominal linear density of 6.3 Tex placed on the lateral fastening of the winding in parallel copper conductors, double-layer winding pasmo of two polyamide filaments nominal line density 5 Tex imposed in opposite directions and one reinforcing multifilament yarn nominal linear density of 6.3 Tex, with each element of the bundle formed by copper conductors, one reinforcing comprehensive thread and transverse fastening winding of polyamide yarns, impregnated with a hydrophobic liquid, mainly brand 136-41 GOST 10834-76.

2. A method of manufacturing a miniature what about the cable management, namely, that first made harness, which between two enamelled copper conductors placed one reinforcing complex thread, keeping them parallel, on top of which impose binding winding with a pitch of 0.7 mm pasmo of three nylon threads, using the speed of 3.5-4.5 m/min, while previously all elements of the bundle is impregnated with the hydrophobic liquid brand 136-41 GOST 10834-76 with a kinematic viscosity of 50-165 mm2/s while providing tension enameled conductors in the range of 0.29 to 0.58 N, tension reinforcing multifilament yarn in the range of 0.39-0.58 N, tension pasmi in the range of 0.24-0,49 N, and then harness is dried at a temperature of 120-150 degrees Celsius, after which produce the final manufacture of miniature control cable, which is placed in parallel with a bundle of four reinforcing multifilament yarn while providing a tension in the range of 0.39-0.58 N, and on top lay a double-layer winding: internal pasmo of two polyamide fibers are wound in opposite directions with calculation step of 0.7 mm, and the outer one reinforcing multifilament yarn, while providing tension pasmi in the range of 0.39-0,78 N, the tension of the harness within 1,47-1,96 N, then made a miniature control cable is wound on the take-up spool.

The essence before aguinaga of the invention is illustrated by drawings, where figure 1 shows a miniature cable management in the context, figure 2 shows a diagram of the manufacture of the harness on the car OSM-2, figure 3 shows a diagram of the final manufacturing miniature control cable in machine OSM-2.

Miniature control cable (figure 1) consists of two electrically isolated from each other enamelled copper conductors (current-carrying conductors) 1 diameter of 0.071 mm, one reinforcing multifilament yarn 2 on the basis of synthetic high-molecular compounds nominal linear density of 6.3 Tex, parallel copper conductors 1, transverse fastening coil 3 pasmo of three nylon threads nominal linear density of 5 Tex, forming a harness, and four reinforcing filament yarn 4 nominal linear density of 6.3 Tex placed on the fastening coil 3 in parallel copper conductors 1, a two-layer winding pasmo of two polyamide thread 5 nominal linear density 5 Tex imposed in opposite directions and one reinforcing multifilament yarn 6 nominal linear density of 6.3 Tex. This harness formed copper conductors, one reinforcing comprehensive thread and holding winding impregnated hydrophobic liquid, mainly brand 136-41 GOST 10834-76.

A method of manufacturing a miniature cable management the Department provides for its production in two stages. The first stage of the manufacture of harness, the second cable manufacturer. It uses a special machine brand OSM-2 with a linear speed of 3.5-4.5 m/min

Diagram of the manufacturing harness are presented in figure 2. Two copper conductors 1 with two coils 7 and strengthening complex thread 2 with coil 8 combine, keeping them parallel, passed through a bath 9 with a hydrophobic liquid brand 136-41 GOST 10834-76 with a kinematic viscosity of 50-165 mm2/s and using the wrapper 10 impose binding winding 3 pasmo of three polyamide fibers 11 with a pitch of 0.7 mm, impregnated also hydrophobic liquid. This provides tension enameled conductors in the range of 0.29 to 0.58 N, tension reinforcing multifilament yarn 2 in the range of 0.39-0.58 N, tension winding pasmi in the range of 0.24-0,49 N. After this harness is dried in furnace 12 at a temperature of 120-150 degrees Celsius, and after pulling device 13 is wound on the take-up spool 14.

The final scheme making miniature cable management is presented in figure 3. Using a special machine brand OSM-2 with a linear speed of 3.5-4.5 m/min harness from the coil 15 and four reinforcing multifilament yarn 4 through the bath 16 (without hydrophobic liquid) unite, keeping them parallel. At the same time provide tension reinforcing sets the SPE threads 4 in the range of 0.39-0.58 N, while the harness is in the range of 1.47-1,96 N. Then, using the top of the wrapper 17 and the bottom of the wrapper over 18 impose a two-layer winding: internal - pasmo of two nylon yarns 5, wound in opposite directions with calculation step of 0.7 mm, and the outer one reinforcing multifilament yarn 6 by providing tension winding pasmi in the range of 0.39-0,78 N.

Thus obtained miniature cable management through the pulling device 19 is wound on the take-up spool 20.

The proposed device in addition to describing the design of miniature control cable and method of manufacture consists in the following. A parallel arrangement of conductive insulated copper conductors and one reinforcing multifilament yarn combined with a pre-styling process by loading the tensile strength in the range of elastic deformation of the material provides a significant increase axial resistance of harness to break through the internal axial force pre-load, and eliminating all kinds of hub forces in the form of loops in the manufacture of harness. The design of the harness allows the use of modern synthetic macromolecular compounds [3] domestic producers with high tensile strength, virtually eliminating the loading of RA is thepayday power of conductive wires. Fastening the winding pasmo of three polyamide filaments to provide with regard to the hydrophobic impregnation liquid and drying the production of a single, monolithic, flexible conductive braid. The temperature of drying is selected from the condition of internal stress of the power elements of the harness and the optimal mode of polymerization of the hydrophobic liquid. Thus obtained harness is hardened in the axial direction of the four reinforcing complex threads placed in parallel with the harness and wrapped pasmo of two loaded by the axial force of polyamide filaments in opposite directions, thereby providing a solid bunch of items miniature cable management. Superimposed over pasma strengthening complex thread protects the elements of the miniature control cable from mechanical and thermal effects during the start of the guided missile, and in the course of its flight.

Shows the experimentally proven in real production conditions, the miniature design of the control cable and method of manufacture provide the necessary electrical and technical characteristics, namely:

- the maximum outer diameter miniature cable management - no more than 0.35 mm;

- estimated weight of 1 km of cable is not more than 0.18 kg;

electrical insulation resistance of a submerged 1 m miniature cable management - 410 mW;

- breaking strength is not less than 49 N;

- working temperature range - from minus 60°to + 70°C.

Sources of information

1. RF patent №2109359 - equivalent.

2. RF patent №2256969 prototype.

3. The catalogue of production of JSC company". Filaments of synthetic high modulus, 1, 4, 5, 28.

1. Miniature cable management, mainly for wired communication line small guided missiles with a command control system, consisting of two electrically insulated from each other enamelled copper conductors (current-carrying conductors), one reinforcing multifilament yarn synthetic high-molecular compounds nominal linear density of 6.3 Tex, parallel copper conductors, cross-fastening winding pasmo of three nylon threads nominal linear density of 5 Tex, forming a harness, and four reinforcing filament yarn nominal linear density of 6.3 Tex placed on the lateral fastening of the winding in parallel copper conductors, double-layer winding pasmo of two polyamide filaments nominal line density 5 Tex imposed in opposite directions and one reinforcing multifilament yarn nominal linear density of 6.3 Tex, with each element of the bundle formed by the copper conductors, the ne strengthening comprehensive thread and transverse fastening winding of polyamide filaments, impregnated hydrophobic liquid, mainly brand 136-41 GOST 10834-76.

2. A method of manufacturing a miniature cable management, namely, that first made harness, which between two enamelled copper conductors placed one reinforcing complex thread, keeping them parallel, on top of which impose binding winding with a pitch of 0.7 mm pasmo of three nylon threads, using the speed of 3.5-4.5 m/min, while previously all elements of the bundle is impregnated with the hydrophobic liquid brand 136-41 GOST 10834-76 with a kinematic viscosity of 50-165 mm2/s while providing tension enameled conductors in the range of 0.29 to 0.58 N, tension reinforcing multifilament yarn in the range of 0.39-0.58 N, tension pasmi in the range of 0.24-0,49 N, and then harness is dried at a temperature of 120-150°after which produce the final manufacture of miniature control cable, which is placed in parallel with a bundle of four reinforcing multifilament yarn while providing a tension in the range of 0.39-0.58 N, and on top lay a double-layer winding: internal pasmo of two polyamide fibers are wound in opposite directions with calculation step of 0.7 mm, and the outer one reinforcing multifilament yarn, while providing tension pasmi in the range of 0.39-0,78 N, the tension of the harness to limit the 1,47-1,96 N, then made a miniature control cable is wound on the take-up spool.



 

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