CN210039689U - Cable for field signal transmission of fluoroplastic insulating elastomer plastic sheath - Google Patents

Abstract

The utility model discloses a fluoroplastics insulating elastomer plastic sheath field signal transmission cable, including rubber skeleton, rubber skeleton including three circular skeletons of quartering of six end to end, be connected with the reinforcing plate between per two diagonal angle tie points, be equipped with the sinle silk in the inside sinle silk that is equipped with of three circular skeletons of every quartering, the sinle silk including the conductor, the cladding has at the outside of conductor has and gathers perfluor ethylene propylene plastic insulation layer, with two or three conductors pair twist back in proper order the cladding in the outside have the tinned copper wire to weave branch shielding layer, nanometer silica gel filling layer and aluminium foil around the covering that insulates against heat. The utility model adopts the insulating layer of fluorinated ethylene propylene, the insulating resistance performance is high, and the insulating thickness is thin; the outer sheath of the TPV special elastomer outer sheath has good cold resistance and flexibility, so that the reliability and safety of the cable in use are ensured, the sheath is prevented from cracking due to bending disturbance during cable construction, and the service life is prolonged.

Description

Cable for field signal transmission of fluoroplastic insulating elastomer plastic sheath

Technical Field

The utility model relates to the technical field of cables, especially, relate to a fluoroplastics insulating elastomer plastic sheath cable for field signal transmission.

Background

The cable for field signal transmission is a cable for transmitting signals for field battle equipment and instruments. The fluoroplastic insulation has the performances of high and low temperature resistance, corrosion resistance, aging resistance and the like, the special elastomer sheath is suitable for a field low-temperature mobile environment, the cable is soft, cold-resistant and aging-resistant, the multi-split screen stranded wire and the total screen structure have good transmission performance, strong anti-interference capability and cable working temperature: -60 ℃ to 125 ℃, the operable temperature of the insulated wire core: -65 ℃ to 200 ℃. The traditional signal cable has serious defects in the aspects of cold resistance, oxidation resistance, interference resistance and the like, the insulating property of the cable is seriously reduced in the environment of-60 ℃, the cable cannot be installed and moved, the sheath is easy to crack when becoming brittle and bent, the cable is poor in conductivity due to heating in the environment of high temperature of 125 ℃, the resistance is increased, the external electromagnetic interference is enhanced, the shielding effect is weakened, the aging life of the outer sheath is shortened, and the use safety is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fluoroplastic insulation elastomer plastic sheath field signal transmission cable in order to compensate the defects of the prior art.

The utility model discloses a realize through following technical scheme:

the utility model provides a cable for field signal transmission of fluoroplastics insulating elastomer plastic sheath, including rubber skeleton, rubber skeleton including six end to end's three-quadrant skeleton, be connected with the reinforcing plate between per two diagonal angle tie points, be equipped with the sinle silk in the inside three-quadrant skeleton of every quadrant, the sinle silk including the conductor, the outside cladding of conductor has and gathers perfluor ethylene propylene plastic insulation layer, has two or three conductors pair twist back in proper order the cladding in the outside to weave branch shielding layer, nanometer silicon waterproof glue filling layer and aluminium foil around the covering that insulates against heat, has the total shielding layer of tinned copper wire weaving, waterproof canvas around covering, heat preservation cotton filling layer and oversheath layer in proper order the cladding in the outside of rubber skeleton. 2 or 3 conductors are twisted in pairs in a small pitch anticlockwise direction through color separation, and each group of twisted wires can be distinguished from colors.

The conductor is formed by combining a plurality of tinned copper wire bundles.

The outer sheath layer adopts an elastomer plastic outer sheath.

The performance design of the fluoroplastic insulated tinned copper wire split screen and total screen special elastomer plastic sheath cable for field signal transmission strictly follows GJB, TICW and other standards and international electrotechnical commission IEC standard. The conductor of the fluoroplastic insulating tinned copper wire split screen and total screen special elastomer plastic sheath field signal transmission cable is formed by combining a plurality of strands of super-soft tinned copper wire bundles, the insulating layer is fluorinated ethylene propylene, and has super-high and low temperature resistance and corrosion resistance, the braided split/total screen layer is excellent in performance of the tinned copper wire, has the functions of oxidation resistance, acid and alkali resistance and electromagnetic interference resistance, and the sheath is made of special elastomer plastic and has the advantages of low temperature resistance, wear resistance in moving and good cable flexibility. The fluoroplastic insulated tinned copper wire split screen and total screen special elastomer plastic sheath field signal transmission cable is initiated at home, and no specific standard and experimental requirement of the product exists at present. Compared with the existing signal cable, the product has great process improvement, strict requirements on process design and product raw material selection are met, and the problems that the product is easy to crack, age, unsmooth in signal transmission and the like under severe environments such as high and low temperature, frequent movement of the cable, strong field electromagnetic interference and the like are solved.

The cable uses the fluorinated ethylene propylene insulating plastic to replace common materials such as PVC (PE), and the like, so that the high and low temperature resistance of the product is greatly improved. The common PVC (PE) has the defects of poor high-low temperature resistance and easy aging and deterioration; the oil resistance and the solvent resistance are poor, and the acid and alkali corrosion resistance is low; the heat resistance is not high, and the use temperature range is as follows: about-15 ℃ to +90 ℃; the polyfluorinated ethylene-propylene plastic has good weather resistance, excellent ageing resistance and high and low temperature resistance, is used in the temperature range of-65-200 ℃, has wide application temperature range, ensures that the cable has stability, long service life and durability, has low working temperature, small line loss, strong overload resistance and high safety, and simultaneously adopts a special elastomer material to enhance the flexibility of the cable, thereby solving the defects that the outer protective layer of the signal cable has poor low temperature resistance and is easy to crack, the cable has poor hardening and bending degree due to cold, is not suitable for installation and movement, has short service life and the like.

The utility model has the advantages that: the core conductor of the utility model is formed by twisting a plurality of ultra-soft monofilament conductors, the process requires strict control of the pitches of the inner layer and the outer layer of the conductor, the deviation of the outer diameter is small, the core roundness is high, and the flexibility and the integrity of the cable are improved; the insulating layer is fluorinated ethylene propylene, so that the insulating resistance performance is high, and the insulating thickness is thin; the small pitch pair twist partial shielding and the total shielding in the insulated wires ensure the stability of the wire core of the cable, and have good transmission performance and strong anti-interference capability; the TPV outer sheath of the outer sheath special elastomer has good cold resistance and flexibility, ensures the use reliability and safety of the cable, prevents the sheath from cracking caused by bending disturbance during cable construction, prolongs the service life, can play a good role in water and moisture prevention, and has the advantages of small bending radius, fire resistance, flame retardance and the like, particularly the whole weight of the cable is light, and the load of vehicle equipment is reduced; the framework not only increases the compression resistance and tensile resistance of the cable, but also has good waterproof effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, a cable for field signal transmission of fluoroplastics insulating elastomer plastic sheath, including rubber skeleton 1, rubber skeleton 1 including six end to end's three-quarter circular skeleton, be connected with reinforcing plate 2 between per two diagonal angle tie points, be equipped with the sinle silk in the inside sinle silk that is equipped with of three-quarter circular skeleton of every, the sinle silk including conductor 3, the cladding has poly perfluoro ethylene propylene plastic insulation layer 4 in the outside cladding of conductor 3, with two or three conductors 3 pair twist back in proper order the cladding in the outside have the tinned copper wire to weave branch shielding layer 5, nanometer silicon waterproof glue filling layer 6 and aluminium foil are thermal-insulated around covering 7, the cladding has the tinned copper wire to weave total shielding layer 8 in the outside of rubber skeleton 1 in proper order, waterproof canvas around covering 9, heat preservation cotton filling layer 10 and oversheath layer 11. The 2 or 3 conductors are twisted in pairs in a small pitch anticlockwise direction in a color separation mode, and each group of twisted wires can be distinguished from colors.

The conductor 3 is formed by combining a plurality of bundles of ultra-soft tinned copper wires.

The outer sheath layer 11 is made of special elastomer plastic.

Part of the preparation method is as follows:

at normal temperature, a continuous annealing copper wire drawing machine is used for drawing a round copper wire and performing contact resistance annealing, the annealing speed is controlled to be 3.5-4.2m/s, the annealing temperature is 530 ℃ and 550 ℃, a monofilament conductor is obtained, and plating processing is performed;

the number of conductors is specified on the upper section of a wire bundling machine, the conductors are twisted and molded in the most anticlockwise direction, the conductors pass through a poly-gold die in a pressing mode, and the conductors are compact as a whole, smooth and round in appearance;

the polyperfluorinated ethylene propylene insulating material is heated to 30 ℃ by a machine table, the equipment precision is high, the temperature control is stable, the polyperfluorinated ethylene propylene insulating material enters a material barrel of an extruding machine through a hopper, granular materials are changed into a molten state through heating of a feeding barrel, the insulating material is pushed to the position of a die opening of a machine head through rotation of a screw, 6 large temperature regions (a machine body 1 region, a machine body 2 region, a machine body 3 region, a flange 4 region, a machine head 5 region and a die 6 region are shared, the temperatures are controlled to be 340 ℃, 365 ℃, 380 ℃, 385 ℃, 390 ℃ and +/-5 ℃ which are allowed), a conductor wire core is heated to 220 +/-5 ℃ through a preheating device and enters the die, a main machine is started to extrude the molten insulating material from the die opening, the temperature of a 2-section constant-temperature water tank is controlled to be;

the special elastomer sheath material enters a material barrel of an extruding machine through a hopper, granular materials are changed into a molten state through heating of a feeding barrel, the sheath material is pushed to the position of a die opening of a machine head through rotation of a screw, the temperature of 6 large temperature regions (a machine body 1 region, a machine body 2 region, a machine body 3 region, a machine body 4 region, a flange 5 region and a die head 6 region are controlled to be 190 ℃, 200 ℃, 205 ℃, 210 ℃, 220 ℃, 230 ℃ and allowed +/-5 ℃), a host machine is started to extrude the molten sheath material from the die opening, the molten sheath material passes through a cooling device, the temperature of a cooling water tank is controlled to be 20 +/-5 ℃, and the molten sheath material passes through an air drying region, a power frequency spark machine after flowing out of the water tank, passes through a code.

Claims (3)

1. The utility model provides a fluoroplastics insulating elastomer plastic sheath field signal transmission uses cable which characterized in that: including rubber skeleton, rubber skeleton including six three-quarter circular skeleton of end to end, be connected with the reinforcing plate between per two diagonal angle tie points, be equipped with the sinle silk in the inside three-quarter circular skeleton, the sinle silk including the conductor, the outside cladding of conductor has and gathers perfluor ethylene propylene plastic insulation layer, has two or three conductors pair twist back in the outside in proper order the cladding have the tinned copper wire to weave branch shielding layer, nanometer silicon waterproof glue filling layer and aluminium foil thermal-insulated around the covering, has the tinned copper wire to weave total shielding layer, waterproof canvas around covering, heat preservation cotton filling layer and oversheath layer in proper order in the outside of rubber skeleton.

2. A fluoroplastic insulating elastomer plastic sheath field signal transmission cable according to claim 1, wherein: the conductor is formed by combining a plurality of tinned copper wire bundles.

3. A fluoroplastic insulating elastomer plastic sheath field signal transmission cable according to claim 1, wherein: the outer sheath layer adopts an elastomer plastic outer sheath.