CN215265607U - Multi-combination flexible flat cable special for variable-frequency drag chain - Google Patents

Abstract

The utility model relates to the technical field of cables for frequency conversion electric equipment, in particular to a multi-combination flexible flat cable special for a frequency conversion drag chain, which comprises a aramid twisted rope and a control cable, wherein the conductor in a power cable adopts annealed soft copper monofilament, under the condition that the cross section of a conductor is not changed, the diameter of a single conductor is reduced, the number of single lines is increased, the single lines are twisted in the same direction at a small pitch multiple ratio, waterproof glue is injected, the anti-skidding isolating layer is wrapped to form the anti-skidding isolating layer, the conductor is compact, soft and bending-resistant in structure, and is suitable for frequent reciprocating motion and used in the occasion of a towline system which is frequently bent and moved, the arranged control cable insulating layer and the arranged power cable insulating layer are both made of extruded halogen-free flame-retardant environment-friendly high-elasticity rubber blocks, the tensile strength of an insulating wire core is enhanced because the cross-linked rubber has high resilience and flexibility to buffer external mechanical stress, and secondary disasters cannot be generated when fire disasters occur and combustion.

Description

Multi-combination flexible flat cable special for variable-frequency drag chain

Technical Field

The utility model relates to a cable technical field for frequency conversion electrical equipment specifically is special multiunit of frequency conversion tow chain closes flexible flat cable.

Background

The frequency conversion drag chain is a frequency conversion system which is installed in the occasions of industrial automation, ports and docks, logistics conveying systems and hoisting machinery equipment under the free continuous reciprocating motion of strong stress slow release or forced guidance, improves the performance of the equipment in various aspects such as speed regulation, starting and the like, and is being popularized and used more and more, so the demand of a special multi-combination flexible flat cable for the frequency conversion drag chain is increasing day by day.

Most of frequency conversion towlines in the existing market are used for power supply connection of mobile frequency conversion equipment and transmission of control signals, cables used in a matched mode need to be equipped with indoor and outdoor dry, humid, underwater and cold environments to move back and forth along with frequency conversion, and the cables are used in frequently bent occasions, and new requirements are provided for flexibility, bending resistance and electromagnetic shielding anti-interference performance of the cables, so that the multi-combination flexible flat cables special for the frequency conversion towlines are provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special multiunit of frequency conversion tow chain closes flexible flat cable to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the special multi-combination flexible flat cable for the variable-frequency drag chain comprises four to twelve control cables and a plurality of outer layers of control cables, wherein the control cables are annularly distributed on the outer sides of the outer layers of the control cables, a control cable insulating layer is fixedly connected to the outer sides of the control cables, a first anti-skid isolation belt is arranged on the outer side of the control cable insulating layer, the number of the first anti-skid isolation belt layers is two, a control cable shielding layer is arranged on the outer side of the first anti-skid isolation belt positioned on the inner side, the outer side of the control cable shielding layer is fixedly connected with the inner side of the first anti-skid isolation belt positioned on the outer side, an outer sheath layer is fixedly connected to the outer side of the first anti-skid isolation belt positioned on the outer side, a second anti-skid isolation belt is fixedly connected to the inner side of the outer sheath layer, the second anti-skid isolation belt is three, a woven shielding layer is fixedly connected to the inner side of the second anti-skid isolation belt positioned on the outer side, the inner side of the innermost second anti-skid isolation belt is fixedly connected with a power cable, and the outer side of the innermost second anti-skid isolation belt is fixedly connected with a power cable insulation layer.

Preferably, the number of the power cables is two to ten, and the power cables are symmetrically distributed on the left side and the right side of the aramid twisted rope.

Preferably, the control cable insulating layer and the power cable insulating layer are both made of extruded halogen-free flame-retardant environment-friendly high-elasticity rubber blocks.

Preferably, the conductor in the power cable is made of annealed soft copper monofilaments, the diameter of the conductor monofilaments is reduced, the number of the single wires is increased, the single wires are twisted in the same direction at a small pitch-to-multiple ratio under the condition that the section of the conductor is not changed, waterproof glue is injected, and an anti-skid isolation layer is wrapped.

Preferably, the outer sheath layer is made by a special flat machine head and a special die and adopting a compact structure and a high-strength polyester mixture block by extrusion.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, the conductor in the power cable adopts the soft copper monofilament of annealing, under the unchangeable condition in conductor cross-section, reduces conductor monofilament diameter, increases the single line radical, and the equidirectional transposition of little pitch multiple is poured into the waterproof glue into, makes around package anti-skidding isolation layer, and conductor structure is inseparable, soft, resistant bending, adapts to frequent back and forth movement, uses under the tow chain system occasion of frequent crooked removal.

2. The utility model discloses in, the control cable insulating layer and the power cable insulating layer that set up all adopt the high elasticity block rubber of the fire-retardant environmental protection of halogen-free of extrusion type to make, because of the rubber through the cross-linking has high resilience and compliance can cushion outside mechanical stress and strengthen insulation core tensile strength, can not produce secondary disaster when the conflagration burning takes place.

3. The utility model discloses in, on the transposition conductor, on the insulation core, adopt around package anti-skidding median on the control core copper wire weaving layer, prevent between conductor and the insulating layer, the adhesion between insulating layer and the restrictive coating, freely can slide each other, increase the whole soft and bending resistance performance of cable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: the cable comprises a 1-Arlen wire stranded rope, a 2-control cable, a 3-control cable insulating layer, a 4-first anti-skid isolation belt, a 5-control cable shielding layer, a 6-power cable, a 7-second anti-skid isolation belt, an 8-power cable insulating layer, a 9-braided shielding layer and a 10-outer sheath layer.

Detailed Description

Referring to fig. 1, the present invention provides a technical solution:

the special multi-combination flexible flat cable for the variable-frequency drag chain comprises an Arrhen twisted rope 1 and control cables 2, wherein the number of the control cables 2 is four to twelve, the control cables 2 are annularly distributed on the outer side of the Arrhen twisted rope 1, a control cable insulating layer 3 is fixedly connected to the outer side of each control cable 2, a first anti-skid isolation belt 4 is arranged on the outer side of each control cable insulating layer 3, the number of layers of the first anti-skid isolation belt 4 is two, a control cable shielding layer 5 is arranged on the outer side of the first anti-skid isolation belt 4 on the inner side, the outer side of the control cable shielding layer 5 is fixedly connected with the inner side of the first anti-skid isolation belt 4 on the outer side, an outer sheath layer 10 is fixedly connected to the outer side of the first anti-skid isolation belt 4 on the outer side, a second anti-skid isolation belt 7 is fixedly connected to the inner side of the outer sheath layer 10, and the number of layers of the second anti-skid isolation belt 7 is three, the inner side of the second anti-skid isolation belt 7 located on the outermost side is fixedly connected with a braided shielding layer 9, the inner side of the second anti-skid isolation belt 7 located on the innermost side is fixedly connected with a power cable 6, and the outer side of the second anti-skid isolation belt 7 located on the innermost side is fixedly connected with a power cable insulating layer 8.

The number of the power cables 6 is two to ten, the power cables 6 are symmetrically distributed on the left side and the right side of the Arrhen stranded rope 1, the arrangement is favorable for balancing and eliminating the twisting pitch back twist generated when the power cables (6) move and bend frequently back and forth, the cables are ensured not to generate twisting deformation when moving, the whole mechanical property of the cables is enhanced, the control cable insulating layer 3 and the power cable insulating layer 8 are both made of extruded halogen-free flame-retardant environment-friendly high-elasticity rubber blocks, the tensile strength of an insulating wire core is enhanced because the cross-linked rubber has high resilience and softness to buffer the external mechanical stress, secondary disasters are not generated when fire fires occur and burning, the conductor in the power cables 6 adopts annealed soft copper monofilaments, the diameter of the conductor monofilaments is reduced, the number of the monofilaments is increased, the small pitch multiple ratio is stranded in the same direction under the condition that the section of the conductor is unchanged, inject waterproof glue, make around package anti-skidding isolation layer, the conductor structure is inseparable, soft, resistant crooked, adapts to frequent back and forth movement, uses under the tow chain system occasion that frequent bending removed, oversheath layer 10 is through purpose-made special aircraft nose of flat type, mould, adopts the crowded package high strength polyester mixture piece of compact structure to make, has waterproof, resistant oil, cold-resistant, ultraviolet resistance, wear-resisting, low smoke and zero halogen fire-retardant, high strength and high elasticity's characteristic, and the removal frequency conversion of the tow chain system that adapts to various special environment and lasts frequent bending free movement strong pulling force and mandatory motion is equipped for long-term the use.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims (3)

1. The special multi-combination flexible flat cable for the variable-frequency drag chain comprises an aromatic silk twisted rope (1) and a control cable (2), and is characterized in that: the number of the control cables (2) is four to twelve, the control cables (2) are annularly distributed on the outer side of the aramid stranded rope (1), the outer side of the control cables (2) is fixedly connected with a control cable insulating layer (3), the outer side of the control cable insulating layer (3) is provided with a first anti-skid isolation belt (4), the number of layers of the first anti-skid isolation belt (4) is two, the outer side of the first anti-skid isolation belt (4) positioned on the inner side is provided with a control cable shielding layer (5), the outer side of the control cable shielding layer (5) is fixedly connected with the inner side of the first anti-skid isolation belt (4) positioned on the outer side, the outer side of the first anti-skid isolation belt (4) positioned on the outer side is fixedly connected with an outer sheath layer (10), the inner side of the outer sheath layer (10) is fixedly connected with a second anti-skid isolation belt (7), and the number of layers of the second anti-skid isolation belt (7) is three, the inner side of the second anti-skid isolation belt (7) located on the outermost side is fixedly connected with a braided shielding layer (9), the inner side of the second anti-skid isolation belt (7) located on the innermost side is fixedly connected with a power cable (6), and the outer side of the second anti-skid isolation belt (7) located on the innermost side is fixedly connected with a power cable insulating layer (8).

2. The special multi-combination flexible flat cable for the variable-frequency drag chain according to claim 1, characterized in that: the number of the power cables (6) is two to ten, and the power cables (6) are symmetrically distributed on the left side and the right side of the Arrhenius twisted rope (1).

3. The special multi-combination flexible flat cable for the variable-frequency drag chain according to claim 1, characterized in that: the control cable insulating layer (3) and the power cable insulating layer (8) are both made of extruded halogen-free flame-retardant environment-friendly high-elasticity rubber blocks.

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