CN212874089U - Metal shielding rubber sleeve flexible cable for coal mine frequency conversion device - Google Patents

Abstract

The utility model discloses a metal shielding rubber jacketed flexible cable for a coal mine frequency conversion device, which belongs to the technical field of electric wires and cables and comprises an outer sheath, a heat-resistant isolation layer, a reinforcing layer, a filling layer, three power wire cores and three control wire cores, wherein the outer sheath, the heat-resistant isolation layer, the reinforcing layer and the filling layer are sequentially arranged from outside to inside, the reinforcing layer is arranged between the filling layer and the heat-resistant isolation layer by weaving and winding steel wires and semiconductor fiber wires, each power wire core comprises a power wire core conductor, a conductor shielding layer and a power wire core insulation layer, each control wire core comprises a control wire core conductor, a control wire core insulation layer and a metal shielding layer, the power wire core insulation layer and the control wire core insulation layer are respectively formed by extruding and wrapping a rubber mixture consisting of ethylene-octene mixture and ethylene propylene rubber, the center of the filling layer is provided with, high strength, high tensile, heat resistance, environmental protection, impact resistance, bending resistance and long service life.

Description

Metal shielding rubber sleeve flexible cable for coal mine frequency conversion device

Technical Field

The utility model belongs to the technical field of the wire and cable technique and specifically relates to a colliery is metal shielded rubber sleeve flexible cable for frequency conversion device.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total and outer jackets, and additional uninsulated conductors for cables, are widely used in various fields.

In recent years, along with the rapid development of the variable frequency speed regulation technology, the coal mine mining equipment adopts a variable frequency system, the performance of the mining equipment in various aspects such as speed regulation, starting and the like is improved, the cable is increasingly popularized and used, the cable is easy to be subjected to various mechanical stresses such as severe frequent bending, dragging and stretching, extrusion, torsion, impact of ore blocks and the like in the using and running process, the cable is easy to be damaged, the service life is shortened, the phenomenon of core breaking of a control wire core is easy to occur, and therefore equipment failure and control failure are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery is metal shielding rubber cover flexible cable for frequency conversion device to easily make the cable receive destruction among the solution prior art, reduce life, the condition that the control core breaks appears still easily takes place, thereby causes equipment trouble, controls the technical problem of malfunctioning phenomenon.

The utility model provides a metal shielding rubber sleeve flexible cable for a coal mine frequency conversion device, which comprises an outer sheath, a heat-resistant isolation layer, a reinforcing layer, a filling layer, three power wire cores and three control wire cores, wherein the outer sheath, the heat-resistant isolation layer, the reinforcing layer and the filling layer are sequentially arranged from outside to inside, the three power wire cores and the three control wire cores are uniformly arranged in the filling layer in a surrounding way in a circumferential staggering way, the reinforcing layer is arranged between the filling layer and the heat-resistant isolation layer in a weaving and winding way by steel wires and semiconductor fiber wires, each power wire core comprises a power wire core conductor, a conductor shielding layer and a power wire core insulation layer which are sequentially arranged from inside to outside, each control wire core comprises a control wire core conductor, a control wire core insulation layer and a metal shielding layer which are sequentially arranged from inside to outside, the power wire core insulation layer, the insulating rubber is a rubber mixture consisting of ethylene-octene rubber and ethylene propylene rubber, and a reinforcing pad core is arranged at the center of the filling layer.

Preferably, the outer wall of the outer sheath is provided with a spiral fluorescent warning strip, and the outer sheath is made of chloroprene rubber or chlorinated polyethylene serving as a base material.

Preferably, the metal shielding layer is formed by weaving a mixture of tinned soft copper wires and aramid fibers.

Preferably, the reinforcing mat core is made of semiconductor fiber filaments and a semiconductive shielding layer.

Compared with the prior art, the beneficial effects of the utility model reside in that: the flexibility and the tensile resistance of the cable are enhanced, the relative isolation sliding performance between the core and the core layers and the total shielding anti-interference performance of the multi-layer composite split-phase shielding and total shielding are enhanced, so that the cable integrally adapts to various mechanical stresses such as frequent bending, dragging and stretching, extrusion, torsion, impact of ore blocks and the like; and can be applicable to the adverse circumstances in the pit of colliery through oversheath and heat-resisting isolation layer, have waterproof corrosion-resistant function, power sinle silk insulating layer and control sinle silk insulating layer are made by the rubber mixture crowded package of ethylene-octene mixture and ethylene propylene rubber as the base material, low in production cost, performance are good, are made by semiconductor fiber silk and semiconduction shielding layer through strengthening the cushion core, and the crooked flexible of being convenient for in the use makes the power of applying on the cable core, can strengthen the cushion core because of the high strength and bear and can cushion, be difficult for disconnected core when the bending, the utility model discloses simple structure, high strength, high tension, heat-resisting, environmental protection, shock resistance are resistant crooked and long service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Reference numerals:

oversheath 1, heat-resisting isolation layer 2, enhancement layer 3, filling layer 4, power sinle silk 5, power sinle silk conductor 51, conductor shield 52, power sinle silk insulating layer 53, control sinle silk 6, control sinle silk conductor 61, control sinle silk insulating layer 62, metal shielding layer 63, reinforcing pad core 7.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The embodiment of the utility model provides a metal shielding rubber sleeve flexible cable for coal mine frequency conversion device, which is shown by combining with the following figures 1-2, and comprises an outer sheath 1, a heat-resistant isolation layer 2, a reinforcing layer 3, a filling layer 4, three power wire cores 5 and three control wire cores 6, wherein the outer sheath 1, the heat-resistant isolation layer 2, the reinforcing layer 3 and the filling layer 4 are sequentially arranged from outside to inside, the three power wire cores 5 and the three control wire cores 6 are circumferentially staggered and uniformly arranged in the filling layer 4 in a surrounding manner, the reinforcing layer 3 is arranged between the filling layer 4 and the heat-resistant isolation layer 2 by weaving and winding steel wires and semiconductor fiber wires, the twisting pitch generated by frequent dragging and bending of the cable is eliminated, the overall mechanical performance of the cable is enhanced, each power wire core 5 comprises a power wire core conductor 51, a conductor shielding layer 52 and a power wire core insulation layer 53 which are, each control wire core 6 comprises a control wire core conductor 61, a control wire core insulating layer 62 and a metal shielding layer 63 which are sequentially arranged from inside to outside, the power wire core insulating layer 53 and the control wire core insulating layer 62 are formed by extruding and wrapping rubber mixtures consisting of ethylene-octene mixtures and ethylene propylene rubber, and the center of the filling layer 4 is provided with a reinforcing pad core 7.

Specifically, the outer wall of the outer sheath 1 is provided with a spiral fluorescent warning strip for warning and prolonging the service life of the outer sheath, and the outer sheath 1 is made of chloroprene rubber or chlorinated polyethylene serving as a base material, so that the production cost is low, and the waterproof and flexible performance is good.

Specifically, the metal shielding layer 63 is formed by weaving tinned soft copper wires and aramid fibers in a mixed mode, production cost is low, and interference and damage among the control wire core conductors 61 are prevented.

Specifically, the reinforcing pad core 7 is made of semiconductor fiber yarns and a semi-conductive shielding layer, so that the reinforcing pad core is convenient to bend and stretch in the use process, the force applied to the cable core can be buffered due to the bearing of the high-strength reinforcing pad core 7, and the core is not easy to break in bending.

The utility model discloses a theory of operation: the flexibility and the tensile resistance of the cable are enhanced, the relative isolation sliding performance between the core and the core layers and the total shielding anti-interference performance of the multi-layer composite split-phase shielding and total shielding are enhanced, so that the cable integrally adapts to various mechanical stresses such as frequent bending, dragging and stretching, extrusion, torsion, impact of ore blocks and the like; and can be applicable to the adverse circumstances in the pit of colliery through oversheath 1 and heat-resisting isolation layer 2, have waterproof corrosion-resistant function, power sinle silk insulating layer 53 and control sinle silk insulating layer 62 are made by the rubber mixture extrusion package of ethylene-octene mixture and ethylene propylene rubber as the base material, low in production cost, performance is good, is made by semiconductor fiber silk and semiconduction shielding layer through strengthening the cushion core 7, and the crooked flexible of being convenient for in the use makes the power of applying on the cable core, can strengthen the cushion core 7 because of the high strength and bear and can cushion, the difficult disconnected core of being difficult for when the bending, the utility model discloses simple structure, high strength, high tensile, heat-resisting, environmental protection, shock resistance are crooked and long service life.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (3)

1. The utility model provides a colliery is metal shielded rubber cover flexible cable for frequency conversion device which characterized in that: comprises an outer sheath (1), a heat-resistant isolation layer (2), a reinforcing layer (3), a filling layer (4), three power wire cores (5) and three control wire cores (6), wherein the outer sheath (1), the heat-resistant isolation layer (2), the reinforcing layer (3) and the filling layer (4) are sequentially arranged from outside to inside, the three power wire cores (5) and the three control wire cores (6) are circumferentially staggered and uniformly arranged in the filling layer (4) in a surrounding manner, the reinforcing layer (3) is woven and wound by steel wires and semiconductor fiber wires and is arranged between the filling layer (4) and the heat-resistant isolation layer (2), each power wire core (5) comprises a power wire core conductor (51), a conductor shielding layer (52) and a power wire core insulating layer (53) which are sequentially arranged from inside to outside, and each control wire core (6) comprises a control wire core conductor (61), a control wire core insulating layer (62) and a metal shielding layer (63) which are sequentially arranged from inside, the power wire core insulating layer (53) and the control wire core insulating layer (62) are formed by extruding insulating rubbers, and a reinforcing cushion core (7) is arranged at the center of the filling layer (4).

2. The metal shielding rubber sleeve flexible cable for the coal mine frequency conversion device according to claim 1, which is characterized in that: the metal shielding layer (63) is formed by mixing and weaving tinned soft copper wires and aramid fibers.

3. The metal shielding rubber sleeve flexible cable for the coal mine frequency conversion device according to claim 1, which is characterized in that: the reinforcing pad core (7) is made of semiconductor fiber yarns and a semi-conductive shielding layer.

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