CN216528121U

CN216528121U - Electric hoist trailing cable

Info

Publication number: CN216528121U
Application number: CN202122368522.5U
Authority: CN
Inventors: 沈小平; 徐伟; 芮益仙; 景文中
Original assignee: Tongding Interconnection Information Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-05-13
Anticipated expiration: 2031-09-29

Abstract

The invention provides an electric hoist travelling cable, which comprises a cable main body part and two reinforcing structures symmetrically arranged on the outer side of the cable main body part; the cable main body part comprises a cable core, a sheath structure outside the cable core and a cable core sheath coated outside the sheath structure; the protective layer structure comprises an inner lining layer, a fireproof layer and an outer shielding layer which are sequentially arranged from inside to outside; the reinforcing structure comprises a reinforcing core piece and a reinforcing structure sheath arranged outside the reinforcing core piece, and the cable core sheath and the reinforcing structure sheath are connected into a whole through a hanging strip. The electric hoist image transmission device is simple in structure and reasonable in design, can simultaneously carry out electric energy transmission and signal transmission, and solves the problem of image transmission when the electric hoist is provided with the camera. Meanwhile, the tensile and compression resistance of the cable is stronger, the reliability of the cable is higher, and the service life is longer.

Description

Electric hoist trailing cable

Technical Field

The invention belongs to the technical field of cable production and design, and particularly relates to an electric hoist traveling cable.

Background

The electric hoist is a special hoisting device, is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, storage docks and the like. The hoist traveling cable is generally used for connecting the electric hoist and the control switch, is vertically arranged on the electric hoist, and needs to be provided with a camera in some special occasions. Although current electric block cable can realize the electric energy transmission, can't transmit the image, the function is comparatively single, if will dispose facilities such as camera on electric block, then still need additionally lay signal cable beside former cable, complex operation, the cable integrated level is poor, occupation space is big, the easy confusion of cable part structure complicacy and damage easily. Therefore, there is a need for an improvement of the electric hoist trailing cable.

Disclosure of Invention

In view of this, the invention provides an electric hoist trailing cable, which aims to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an electric hoist traveling cable comprises a cable main body part and two reinforcing structures symmetrically arranged on the outer side of the cable main body part;

the cable main body part comprises a cable core, a sheath structure outside the cable core and a cable core sheath coated outside the sheath structure; the protective layer structure comprises an inner liner layer and an outer shielding layer which are sequentially arranged from inside to outside; the reinforcing structure comprises a reinforcing core piece and a reinforcing structure sheath arranged outside the reinforcing core piece, and the cable core sheath and the reinforcing structure sheath are connected into a whole through a hanging strip;

the cable core comprises a data unit and a conductive unit at the periphery of the data unit, and the data unit and the conductive unit are isolated by a PP (polypropylene) meshed tearing film rope; the data unit comprises a plurality of groups of twisted wires which are twisted with each other, and each group of twisted wires is formed by twisting two insulated single wires.

Further, the insulated single wire comprises a data conductor and a data insulating layer coated on the outer side of the data conductor.

Furthermore, the data conductor is a stranded copper conductor.

Furthermore, the data insulating layer adopts a fluorinated ethylene propylene copolymer insulating layer.

Further, the outer side of the data insulating layer is coated with an inner shielding layer.

Furthermore, the conductive unit comprises a stranded copper conductor and a polyvinyl chloride insulating layer on the outer side of the stranded copper conductor.

Further, the reinforcing core member is made of steel wire.

Further, the cable core sheath is a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

Furthermore, the reinforcing structure sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

Furthermore, the cable core sheath and the reinforcing structure sheath are both made of polyvinyl chloride sheaths.

Compared with the prior art, the invention has the following advantages:

the electric hoist image transmission device is simple in structure and reasonable in design, can simultaneously carry out electric energy transmission and signal transmission, and solves the problem of image transmission when the electric hoist is provided with the camera. Simultaneously, the additional strengthening in the cable main part outside can effectively promote the tensile ability of cable, the sheath structure and the cable core structural design of cable for the tensile compressive property of cable is stronger, and the cable reliability is higher, and life is longer.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a diagram of a data unit according to an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention with a fire barrier layer;

fig. 4 is a schematic view of an embodiment of the present invention with a peripheral protection element.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

An electric hoist trailing cable, as shown in fig. 1 to 3, comprises a cable main body part and two reinforcing structures symmetrically arranged on the outer side of the cable main body part; the cable main body part comprises a cable core 1, a sheath structure outside the cable core and a cable core sheath 6 coated outside the sheath structure; the protective layer structure comprises an inner liner layer 2 and an outer shielding layer 3 which are sequentially arranged from inside to outside.

In an alternative embodiment, a fire-proof layer 4 is arranged between the inner lining layer and the outer shielding layer or between the outer shielding layer and the cable core sheath, so as to improve the fire-proof performance of the cable and avoid the damage of the inner cable core.

The reinforcing structure comprises a reinforcing core piece 5 and a reinforcing structure sheath 7 outside the reinforcing core piece, and the cable core sheath and the reinforcing structure sheath are connected into a whole through a hanging strip 8. By way of example, steel wires are used for the reinforcing core.

The cable core comprises a data unit 9 and a conductive unit 10 on the periphery of the data unit, and the data unit and the conductive unit are isolated through a PP reticular tearing film rope 11. Typically, the conductive element includes stranded copper conductors 14 and a polyvinyl chloride insulation layer 15 outside the stranded copper conductors.

The data unit comprises a plurality of groups of twisted wires which are twisted with each other, and each group of twisted wires is formed by twisting two insulated single wires. Generally, the insulated single wire includes a data conductor 12 and a data insulating layer 13 covering the outside of the data conductor. For example, the data conductor is a stranded copper conductor. The data insulating layer adopts a polyfluorinated ethylene propylene copolymer insulating layer.

In an optional embodiment, the data insulating layer covers the inner shielding layer. In another alternative embodiment, the outer sides of the twisted pairs (the outer sides of the data unit overall structure) may be covered with an inner shielding layer, and the outer sides of the inner shielding layer are covered with a data unit sheath layer. The inner shielding layer not only enhances the shielding performance of the cable together with the outer shielding layer, ensures the reliability of signal transmission of the cable, but also effectively reduces the interference of the conductive unit to the data unit and ensures the stability of signal transmission.

Usually, the cable core sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath. The reinforced structure sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath. The cable core sheath and the reinforcing structure sheath are both made of polyvinyl chloride sheaths.

In order to further improve the performance of the inventive cable, as shown in fig. 4, in an alternative embodiment, a peripheral protection member 16 is disposed between two adjacent conductive units and the inner liner, and generally, the peripheral protection member includes a reinforcement body and a protective layer at the periphery of the reinforcement body.

For example, the reinforcement body may be a braided aramid rope, and may be formed by twisting a plurality of soft steel wires, so that the structural strength of the cable main body portion can be effectively enhanced while maintaining good flexibility, and meanwhile, since the outer edge of the peripheral protection piece protrudes out of the conductive unit, the peripheral protection piece can effectively protect the cable main body portion when being squeezed, rubbed or impacted, thereby preventing the data unit and the conductive unit in the cable main body from being damaged.

It should be pointed out that, when peripheral protection spare was loaded, the netted membrane rope of tearing of PP in can the extrusion cable core, provided reaction force by the netted membrane rope of tearing of PP, guaranteed that peripheral protection spare can bulge in the electrically conductive unit outer fringe all the time, especially to scraping, the more abominable operating mode of wearing and tearing, the structural design of this cable can effectively improve the wearability of cable, long service life, and stability is secure, is applicable to very much under the operating mode that electric block used. Usually, the anti-interference layer adopts the compound belting layer of plastic-aluminum, and the shielding layer adopts the tinned copper wire weaving layer.

The electric hoist image transmission device is simple in structure and reasonable in design, can simultaneously carry out electric energy transmission and signal transmission, and solves the problem of image transmission when the electric hoist is provided with the camera. Meanwhile, the tensile capacity of the cable, the sheath structure and the cable core structure of the cable can be effectively improved by the reinforcing structure outside the main cable body, the tensile and compressive performances of the cable can be further improved, the use reliability of the cable is guaranteed, and the service life is longer.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides an electric block retinue cable which characterized in that: the cable comprises a cable main body part and two reinforcing structures symmetrically arranged on the outer side of the cable main body part;

the cable core comprises a data unit and a conductive unit at the periphery of the data unit, and the data unit is isolated from the conductive unit through a PP (polypropylene) meshed tearing film rope; the data unit comprises a plurality of groups of twisted wires which are twisted with each other, and each group of twisted wires is formed by twisting two insulated single wires.

2. The electric hoist trailing cable of claim 1, characterized in that: the insulated single wire comprises a data conductor and a data insulating layer coated on the outer side of the data conductor.

3. The electric hoist trailing cable of claim 2, characterized in that: the data conductor is a bundle stranded copper conductor.

4. The electric hoist trailing cable of claim 2, characterized in that: the data insulating layer adopts a fluorinated ethylene propylene copolymer insulating layer.

5. The electric hoist trailing cable of claim 2, characterized in that: and an inner shielding layer is coated on the outer side of the data insulating layer.

6. The electric hoist trailing cable of claim 1, characterized in that: the conductive unit comprises a stranded copper conductor and a polyvinyl chloride insulating layer on the outer side of the stranded copper conductor.

7. The electric hoist trailing cable of claim 1, characterized in that: the reinforcing core member is a steel wire.

8. The electric hoist trailing cable of claim 1, characterized in that: the cable core sheath is a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

9. The electric hoist trailing cable of claim 1, characterized in that: the reinforced structure sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

10. An electric block trailing cable according to any one of claims 1 to 9, characterized in that: and the cable core sheath and the reinforcing structure sheath are both made of polyvinyl chloride sheaths.