CN204463940U - A control cable for torsion-resistant and anti-interference fan tower barrel - Google Patents

Abstract

The utility model belongs to control cables technical field, it is a kind of resistance to torsion anti-interference blower fan tower bucket control cables, comprise cable core and sheath, described cable core is made up of three strands of twisted wires, per share twisted wire is made up of two linear conductors, every root conductor is made up of the ethylene propylene rubber insulated layer of bare copper wire outer cladding cross-linking radiation, outside wrapped aluminium-plastic tape after every two conductor pair twists, aluminium-plastic tape outer cladding tinned copper wire woven shield forms twisted wire, wrapped polyester belt successively from inside to outside after three strands of twisted wire assembly cable cores, tinned copper wire braid shielded, nonwoven fabrics and cross-linking radiation chlorinated polyethylene sheath, the utility model mechanical performance, fire-retardant and oil resistance, good weatherability, conductor is not oxidizable, long service life, adhesion is there is not under the high-temperature condition of 110 DEG C ~ 150 DEG C, do not ftracture under-55 DEG C of severe low temperature environments, and there is excellent interference free performance, can effectively suppress and weaken strong electromagnetic, be particularly useful for working in wind generator tower bucket.

Description

A control cable for torsion-resistant and anti-interference fan tower barrel

technical field

The utility model belongs to the technical field of control cables, in particular to a control cable for torsion-resistant and anti-interference fan tower barrels.

Background technique

At present, anti-twist cables are mainly produced with traditional rubber as the main raw material. Its structure is that the stranded conductor is covered with polyester tape or non-woven fabric as the isolation layer, and ethylene-propylene rubber type insulation is extruded outside the isolation layer. The insulation layer and the sheath layer of this cable need to go through a cumbersome steam vulcanization and cross-linking process, the production process is cumbersome, and the mechanical properties, flame retardancy and oil resistance of the cable are poor, and the weather resistance Poor performance, easy to oxidize the conductor, short service life, prone to adhesion at high temperature of 110°C to 150°C, affecting normal use. In addition, the existing anti-twist cable is only suitable for working in low electric field and low magnetic field. When the generator tower barrel is working under the interference of the harsh environment of high electric field and high magnetic field, the transmission signal is prone to be unstable and cannot be used.

Contents of the invention

The purpose of this utility model is to solve the problems of poor mechanical properties, poor oil resistance of flame retardants, poor weather resistance, easy oxidation of conductors and inability to use under high electric field and high magnetic field conditions in existing anti-twist cables, and to provide a Control cables for torsion-resistant and anti-jamming fan tower barrels.

The utility model relates to a control cable for a torsion-resistant and anti-interference fan tower barrel, which includes a cable core and a sheath, in particular: the cable core is composed of three twisted wires, and each twisted wire is composed of two linear conductors Each conductor is composed of bare copper wire covered with irradiated cross-linked ethylene-propylene rubber insulation layer, and every two conductors are twisted and wrapped with aluminum-plastic composite tape, and the aluminum-plastic composite tape is covered with tinned copper wire braiding The shielding layer constitutes a twisted wire. After the three-strand twisted wire is assembled into a cable core, it is wrapped with a polyester tape, a tinned copper wire braided shield, a non-woven fabric and a sheath from the inside to the outside. The sheath is cross-linked by radiation. Made of chlorinated polyethylene.

The bare copper wire described in the utility model is formed by twisting soft copper monofilaments, and 32 soft copper monofilaments are twisted within the range of every 1.0mm ² , and the diameter of the soft copper monofilaments is 0.2mm.

The thickness of the irradiation cross-linked ethylene-propylene rubber insulating layer described in the utility model is 0.6 mm, the thickness of the aluminum-plastic composite tape is 0.025 mm, the diameter of the tinned copper wire braid is 0.12 mm, and the thickness of the polyester tape is 0.05 mm. mm, the thickness of the non-woven fabric is 0.1mm, and the thickness of the irradiation cross-linked chlorinated polyethylene sheath layer is 2.0mm; the outer diameter of the control cable is ≤18mm.

The conductor of the utility model adopts five types of structures (the five types of conductors in the GB/T 3956-2008 standard are adopted, and this type of conductor has excellent flexibility), which is convenient for the product to be used in mobile places; Lithium-propylene rubber material, the sheath layer is made of radiation cross-linked chlorinated polyethylene material, no special rubber extruder vulcanization equipment is needed, but an electron accelerator is used to irradiate the insulation layer and the sheath layer to make the The plastic body changes from a chain structure to a network structure connected layer by layer, which greatly improves the overall performance of the cable product; the aluminum-plastic composite tape protects the insulating layer from being scratched by the braided wire, and at the same time plays a shielding role; The wire has a shielding effect and can resist electromagnetic interference; the non-woven fabric protects the sheath layer from being scratched by the braided wire, and at the same time can enhance the torsion resistance of the cable.

Compared with the existing torsion-resistant cables, the utility model has the following advantages:

(1) The temperature resistance grade is increased from 90°C to 105°C. Under the same conditions of use, the increase in the temperature resistance grade increases the current carrying capacity of the cable, enhances safety, and increases service life;

(2) It has good mechanical properties, the strength of the material is improved, and it has good torsion resistance and bending resistance;

(3) It has excellent weather resistance, low temperature resistance up to -55°C, and oil resistance and ozone resistance have been improved, which broadens the application occasions of the cable;

(4) It has good anti-electromagnetic interference ability, which ensures the stability of the signal in the cable;

(5) The oxidation resistance of the conductor is greatly improved.

The utility model solves the problems of the existing torsion-resistant cables such as poor mechanical properties, poor flame retardancy, oil resistance, and weather resistance, easy oxidation of conductors, and short service life. No adhesion occurs at high temperatures of 110°C to 150°C. It will not crack under harsh low temperature environment, and has excellent anti-electromagnetic field interference performance, which can effectively suppress and weaken strong electromagnetic interference, and is especially suitable for working in wind turbine tower barrels.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

In the figure: 1—cable core, 2—sheath, 3—stranded wire, 4—bare copper wire, 5—irradiated cross-linked ethylene propylene rubber insulation layer, 6—aluminum-plastic composite tape, 7—tinned copper wire Braiding layer, 8—polyester tape, 9—tinned copper wire braided shielding, 10—non-woven fabric.

Detailed ways

Referring to Fig. 1, a control cable for a torsion-resistant and anti-jamming fan tower barrel of this embodiment includes a cable core 1 and a sheath 2, in particular: the cable core 1 is composed of three twisted wires 3, and each strand is twisted The wire 3 is composed of two linear conductors, and each conductor is composed of a bare copper wire 4 covered with an irradiated cross-linked ethylene-propylene rubber insulation layer 5, and each two conductors are twisted and wrapped with an aluminum-plastic composite tape 6, aluminum The plastic composite tape 6 is covered with a tinned copper wire braided shielding layer 7 to form a twisted wire 3, and the three twisted wires 3 are assembled into a cable core 1, and then wrapped with polyester tape 8 and tinned copper wire braided shielding 9 from inside to outside in sequence , a non-woven fabric 10 and a sheath 2, the sheath 2 is made of radiation cross-linked chlorinated polyethylene.

The bare copper wire 4 in this embodiment is formed by twisting annealed copper monofilaments, 32 annealed copper monofilaments are stranded within every 1.0 mm ² , and the diameter of the annealed copper monofilaments is 0.2 mm.

The thickness of the irradiation cross-linked ethylene-propylene rubber insulation layer 5 described in this embodiment is 0.6 mm, the thickness of the aluminum-plastic composite tape 6 is 0.025 mm, the diameter of the tinned copper wire braid layer 7 is 0.12 mm, and the polyester tape 8 The thickness of the non-woven fabric 10 is 0.1mm, the thickness of the irradiation cross-linked chlorinated polyethylene sheath layer 2 is 2.0mm; the outer diameter of the control cable is ≤18mm.

Claims (3)

1. a resistance to torsion anti-interference blower fan tower bucket control cables, comprise cable core and sheath, it is characterized in that: described cable core is made up of three strands of twisted wires, per share twisted wire is made up of two linear conductors, every root conductor is made up of the ethylene propylene rubber insulated layer of bare copper wire outer cladding cross-linking radiation, outside wrapped aluminium-plastic tape after every two conductor pair twists, aluminium-plastic tape outer cladding tinned copper wire woven shield forms twisted wire, wrapped polyester belt successively from inside to outside after three strands of twisted wire assembly cable cores, tinned copper wire woven shield, nonwoven fabrics and sheath, described sheath is made up of cross-linking radiation haloflex.

2. the resistance to torsion of one according to claim 1 anti-interference blower fan tower bucket control cables, is characterized in that: described bare copper wire forms by soft copper monofilament is stranded, every 1.0mm ²stranded in scope have 32 soft copper monofilament, and described soft copper filament diameter is 0.2mm.

3. the resistance to torsion of one according to claim 1 anti-interference blower fan tower bucket control cables, it is characterized in that: the thickness of the ethylene propylene rubber insulated layer of described cross-linking radiation is 0.6mm, the thickness of aluminium-plastic tape is 0.025mm, tincopper fuse wire braided armor filament diameter is 0.12mm, the thickness of polyester belt is 0.05mm, nonwoven thickness is 0.1mm, and cross-linking radiation chlorinated polyethylene sheath layer thickness is 2.0mm; Described control cables external diameter≤18mm.