CN212809842U

CN212809842U - Double-lug-shaped high-tensile rubber sleeve cable

Info

Publication number: CN212809842U
Application number: CN202021776400.9U
Authority: CN
Inventors: 武现军; 罗福安; 许军; 王立
Original assignee: Aerospace Rich Cable Co ltd
Current assignee: Aerospace Rich Cable Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-26
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a high tensile rubber sleeve cable of ears shape. The cable comprises a main wire core, a ground wire core, a tensile element and a sheath wrapped outside the main wire core, the ground wire core and the tensile element; the cable comprises a main wire core, a ground wire core, a tension element and a cable core, wherein the main wire core is provided with a plurality of wires and twisted with the ground wire core to form a cable core, the main wire core is composed of a main wire core conductor and a main wire core insulating sleeve, the ground wire core is composed of a ground wire core conductor and a ground wire core insulating sleeve, the outer edge of the sheath is symmetrically provided with two lug protruding structures, the two tension element are respectively arranged at the central position of the lug protruding structures at the outer edge of the sheath and form a load bearing element together with the lug. The utility model has simple structure, small manufacturing difficulty, low cost, safety, reliability, good weather resistance, flame retardance, oil resistance and long service life; the device can bear large tension in addition to achieving the purpose of transmitting electric power, and is suitable for occasions with frequent retraction, hoisting, bearing large tension or bearing, and temporary erection and crossing.

Description

Double-lug-shaped high-tensile rubber sleeve cable

Technical Field

The utility model relates to a cable manufacturing field especially relates to a high tensile rubber sleeve cable of ears shape.

Background

In practical application, the rubber sleeve cable is required to cross houses, rivers and the like in some use occasions, such as hoisting equipment, traveling hoist, submersible pump connecting lines and temporary use and erection occasions. The rubber sleeve cable not only needs to transmit electric energy, but also bears the load and the tension; in order to increase the bearing and tension functions of the cable, the common method is to add a bearing element at the center or the edge of the cable, and add a bearing element at the center of a conductor, the appearance of the cable is still in a traditional round shape, but a bearing element is added at the center of the conductor or the center of the cable, the bearing effect cannot meet the design requirement, and the power transmission effect can be influenced, so that some users feel inconvenient use and unsatisfactory use effect in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-lug high-tensile rubber sleeve cable which can bear larger pulling force besides achieving the purpose of transmitting electric power and is suitable for occasions with frequent retraction, hoisting, bearing larger pulling force or bearing and temporary erection and crossing; and the cable has the advantages of simple structure, small manufacturing difficulty, low cost, safety, reliability, good weather resistance, flame retardance, oil resistance and long service life.

In order to achieve the technical purpose, the utility model provides a double-lug high-tensile rubber sleeve cable, which comprises a main wire core, a ground wire core, a tensile element and a sheath wrapped outside the main wire core, the ground wire core and the tensile element; the cable comprises a main wire core, a ground wire core, a tension element and a cable core, wherein the main wire core is provided with a plurality of wires and twisted with the ground wire core to form a cable core, the main wire core is composed of a main wire core conductor and a main wire core insulating sleeve, the ground wire core is composed of a ground wire core conductor and a ground wire core insulating sleeve, the outer edge of the sheath is symmetrically provided with two lug protruding structures, the two tension element are respectively arranged at the central position of the lug protruding structures at the outer edge of the sheath and form a load bearing element together with the lug.

The utility model discloses further technical scheme: the cable comprises three main wire cores and a ground wire core, wherein the main wire core conductor and the ground wire core conductor are all made of 5 types of soft copper conductors, and the main wire core insulating sleeve and the ground wire core insulating sleeve are all made of ethylene propylene insulating sleeves.

The utility model discloses better technical scheme: the sheath is a flame-retardant cold-resistant high-strength CPE sheath with the strength of more than 18 megapascals and the cold resistance of less than-40 degrees.

The utility model discloses better technical scheme: the tensile element uses a thin steel wire rope with the diameter of 2 mm-3.5 mm or a stranded polypropylene fiber rope or a high-strength polyethylene rope; the bearing element is extruded integrally with the cable sheath by using a double-lug extrusion die when the cable sheath is extruded.

The utility model discloses a mould for extruding load element ears extrusion tooling includes supporting mold core and the die sleeve that sets up, is equipped with toper extrusion chamber in the die sleeve to extrusion end face at the die sleeve is equipped with circular cable sheath extrusion orifice and two load element extrusion orifices that communicate with toper extrusion chamber, two load element extrusion orifices symmetry set up in the outer fringe of circular cable sheath extrusion orifice, and be connected as an organic whole with cable sheath extrusion orifice; the shape of the mold core is matched with the conical extrusion cavity, a cable core penetrating hole with the diameter smaller than that of the cable sheath extrusion hole is formed in the position, corresponding to the center of the cable sheath extrusion hole, of the mold core, and tensile element penetrating holes are symmetrically formed in the positions, corresponding to the two load-bearing element extrusion holes, of the mold core.

The utility model discloses a sheath adopts fire-retardant cold-resistant high strength CPE sheath, and the sheath outer fringe has the two ear-shaped protruding structures of symmetry, and ear-shaped protruding center is the load element, and the load element uses special-shaped extrusion die to extrude with cable sheath is integrative when cable sheath is extruded, can separate load element and cable body part alone easily in the in-service use and be used for fixing, and the two ear-shaped structure can make the cable atress bigger and the atress even, and two load elements have increased the security and the insurance coefficient of cable moreover; the utility model discloses a sheath intensity is greater than 18 megapascals, cooperates high tensile cable attribute, and cold-resistant being less than-40 degrees to have fire-retardant oil resistance, the weatherability is good, can adapt to multiple occasion and use.

The utility model has simple structure, small manufacturing difficulty, low cost, safety, reliability, good weather resistance, flame retardance, oil resistance and long service life; the device can bear large tension in addition to achieving the purpose of transmitting electric power, and is suitable for occasions with frequent retraction, hoisting, bearing large tension or bearing, and temporary erection and crossing.

Drawings

FIG. 1 is a schematic cross-sectional structure of a cable;

FIG. 2 is a schematic structural view of a binaural extrusion die;

fig. 3 is a schematic view of the extrusion state of the present invention.

In the figure: the cable comprises a main wire core conductor 1, a main wire core insulating sleeve 2, a ground wire core conductor 3, a ground wire core insulating sleeve 4, a tensile element 5, a sheath 6, a mold core 7, a mold sleeve 8, a circular cable sheath extrusion hole 9, a force bearing element extrusion hole 10, a cable core through hole 11, a tensile element through hole 12, an extrusion cavity 13 and a cable core 14.

Detailed Description

The present invention will be further explained with reference to the drawings and examples. Fig. 1 is a drawing of an embodiment, which is drawn in a simplified manner and is only used for the purpose of clearly and concisely illustrating an embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is 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 the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The embodiment provides a double-lug-shaped high-tensile rubber sleeve cable, as shown in fig. 1, the cable comprises three main wire cores, a ground wire core, two tensile elements 5 and a sheath 6 wrapped outside the main wire cores, the ground wire core and the tensile elements 5; the cable comprises a main wire core, a ground wire core, a main wire core conductor 1, a main wire core insulating sleeve 2, a ground wire core, a main wire core conductor 2, a ground wire core conductor 3, a ground wire core insulating sleeve 4, a main wire core conductor 1 and a ground wire core conductor 3, wherein the main wire core conductor and the ground wire core insulating sleeve 2 are made of 5 types of soft copper conductors, and an ethylene propylene insulating sleeve is adopted by the main wire core insulating sleeve 2 and the ground wire core insulating sleeve 4. The sheath 6 is a flame-retardant cold-resistant high-strength CPE sheath with the strength of more than 18 MPa and the cold resistance of less than minus 40 ℃, has flame retardance and oil resistance and good weather resistance, and can be suitable for various occasions; the outer edge of the sheath 6 is symmetrically provided with double-lug protruding structures, the tensile elements 5 are thin steel wire ropes with the diameter of 2 mm-3.5 mm or stranded polypropylene fiber ropes or high-strength polyethylene ropes, the two tensile elements 5 are respectively arranged at the central positions of the double-lug protruding structures at the outer edge of the sheath 6 and form bearing elements with the double-lug protruding structures, and the bearing elements are extruded integrally with the cable sheath 6 by using a double-lug extrusion die when the cable sheath 6 is extruded.

The utility model discloses when making, adopt the extrusion die in figure 2 to extrude, its extrusion die includes supporting mold core 7 and the die sleeve 8 that sets up, is equipped with toper extrusion chamber 13 in the die sleeve 8 to extrusion terminal surface at die sleeve 8 is equipped with circular cable sheath extrusion hole 9 and two load components extrusion hole 10 that communicate with toper extrusion chamber 13, two load components extrusion hole 10 symmetry set up in the outer fringe of circular cable sheath extrusion hole 9, and with cable sheath extrusion hole 9 be linked as an organic whole, and connect the position rounding off; the shape of the mold core 7 is a cone matched with the cone-shaped extrusion cavity 13, the outer cone angle of the mold core 7 is smaller than the inner cone angle of the mold sleeve 8, a cable core through hole 11 with the diameter smaller than that of the cable sheath extrusion hole 9 is formed in the position, corresponding to the center of the cable sheath extrusion hole 9, of the mold core 7, and tensile element through holes 12 are symmetrically formed in the positions, corresponding to the two force bearing element extrusion holes 10, of the tensile element through holes. The round cable sheath extrusion hole 9 is arranged on the central axis of the die sleeve 8, and the cable core penetration hole 11 is arranged on the central axis of the die core 7.

The utility model discloses an extrusion process is as shown in fig. 3, pack into extrusion chamber 13 in the die sleeve 8 with mold core 7, and wear out the cable core 11 just to the middle part that circular cable sheath extruded hole 9, two load components extrude hole 10 and wear hole 12 with the load component respectively and correspond, wear out hole 11 with cable core 14 from the cable core, two tensile component 6 wear out hole 12 from two load components respectively and wear out, carry out traditional cable sheath and extrude the process and just extrude the cable oversheath, in extrusion process, two tensile component 6 just link as an organic wholely with cable core 14, the die core die sleeve is annotated in the course of working and is guaranteed size precision, the polishing reaches the extrusion tooling requirement inside and outside the finished product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high tensile rubber sleeve cable of ears shape which characterized in that: the cable comprises a main wire core, a ground wire core, a tensile element (5) and a sheath (6) wrapped outside the main wire core, the ground wire core and the tensile element (5); the cable comprises a main wire core, a ground wire core and a tensile element, wherein the main wire core is provided with a plurality of wires and twisted together with the ground wire core to form a cable core, the main wire core is composed of a main wire core conductor (1) and a main wire core insulating sleeve (2), the ground wire core is composed of a ground wire core conductor (3) and a ground wire core insulating sleeve (4), the outer edge of a sheath (6) is symmetrically provided with two lug protruding structures, the tensile element (5) is provided with two pieces, the two pieces are respectively arranged at the central position of the lug protruding structures at the outer edge of the sheath (6), and the tensile element and the lug.

2. The double-lug-shaped high-tensile rubber sleeve cable according to claim 1, characterized in that: the cable comprises three main wire cores and a ground wire core, wherein the main wire core conductor (1) and the ground wire core conductor (3) are all made of 5 types of soft copper conductors, and the main wire core insulating sleeve (2) and the ground wire core insulating sleeve (4) are all made of ethylene propylene insulating sleeves.

3. A binaural shaped high tensile elastic sheathed cable according to claim 1 or 2, characterized in that: the sheath (6) is a flame-retardant cold-resistant high-strength CPE sheath with the strength of more than 18 MPa and the cold resistance of less than-40 ℃.

4. A binaural shaped high tensile elastic sheathed cable according to claim 1 or 2, characterized in that: the tensile element (5) uses a thin steel wire rope with the diameter of 2 mm-3.5 mm or a stranded polypropylene fiber rope or a high-strength polyethylene rope; the force bearing element is extruded integrally with the cable sheath (6) by using a double-lug extrusion die when the cable sheath (6) is extruded.