CN216427820U

CN216427820U - Extrusion-proof composite steel wire rope core

Info

Publication number: CN216427820U
Application number: CN202121761275.9U
Authority: CN
Inventors: 高正凯; 伍乐乐; 潘品睿
Original assignee: Jiangsu Saifutian New Material Technology Co ltd
Current assignee: Jiangsu Saifutian New Material Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-05-03
Anticipated expiration: 2031-07-30

Abstract

The utility model provides an anti-extrusion composite steel wire rope core, wherein a polytetrafluoroethylene protective layer with a special structure is completely coated on the outer layer of the rope core, and the functional holes on the polytetrafluoroethylene protective layer can ensure that the rope core can normally perform a lubricating function. And the existence of the grease leads the concave part to form certain vacuum when being subjected to friction extrusion and the like, and the vacuum plays the role of a sucker, thereby leading the rope core and the rope strand to be closely adsorbed together and reducing the possibility of extrusion of the rope core. Meanwhile, the rope core can be protected by the completely coated protective layer, and abrasion of the rope core caused by friction between the rope core and the rope strands coated on the rope core is reduced. The service life of the rope core and the whole steel wire rope is prolonged.

Description

Extrusion-proof composite steel wire rope core

Technical Field

The utility model belongs to the technical field of steel wire ropes, and particularly relates to an anti-extrusion composite steel wire rope core.

Background

The steel wire rope is used as a special component, is widely applied to various fields of national economy such as petroleum, coal, ports, oceans, mines, aviation, medical treatment, communication, forestry, construction, metallurgy and the like, and cannot be replaced so far. The steel wire rope is a rope-shaped product which is made of steel wires with mechanical properties and geometric dimensions meeting requirements through the procedures of shaft making, stranding, rope combining and the like, and generally comprises a rope core, rope strands and two main parts.

The rope core is a central component of the steel wire rope, and the rope strands are mainly wrapped and twisted around the rope core to form the steel wire rope. The difference of rope core materials determines the functional bias of the rope cores, and the mainstream rope cores are divided into metal rope cores and fiber rope cores in the current market. The metal rope core plays a role in supporting in the radial direction, reduces the pressure between strands and keeps a stable physical structure of the steel wire rope, and the steel wire rope has high rigidity but poor relative flexibility; the steel wire rope with the fiber rope core has good flexibility and good softness, stores lubricating grease, and releases partial grease to the steel wire rope strands for lubricating when the steel wire rope is under pressure. In addition, the composition and structure of the wire rope core also affect the functionality, applicability and stability of the core.

When the steel wire rope is used, internal abrasion, indentation and external abrasion are caused by transportation, lubrication, working environment, using method and the like, the phenomenon of 'deformation' of the steel wire rope core extrusion can occur, once the phenomenon occurs, the deformation part (or deformed part) can change, so that the internal stress distribution of the steel wire rope is uneven, and the steel wire rope is immediately scrapped. However, when the problem of using the steel wire rope is eliminated, people also want to prevent or reduce the occurrence of the situation in the aspect of the structure of the rope core, and the service life of the steel wire rope is prolonged.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem that the existing steel wire rope core is deformed and extruded in the using process, the utility model provides the anti-extrusion composite steel wire rope core which is high in strength and good in winding performance, has a good anti-extrusion function and a good lubricating function, and prolongs the service life of the steel wire rope.

In order to achieve the purpose, the utility model provides an anti-extrusion composite steel wire rope core, which comprises a composite rope core and a protective layer; the composite rope core comprises a plurality of rope core strands; the rope core strand comprises a central steel wire and a plurality of peripheral fibers; the rope core strands are mutually wound, wrapped and twisted to form a composite rope core; the protective layer is completely coated on the outer layer of the composite rope core; a plurality of depressions are regularly distributed on the surface of the protective layer; the center of the recess is provided with a functional hole.

Preferably, when the recesses are longitudinally arranged along the composite rope core, a lay length is formed between the recesses.

Preferably, when the recesses are transversely arranged along the composite rope core, the recesses of adjacent longitudinal columns are arranged in a staggered manner.

Preferably, the diameter of the recess is equal to the lay length of the cord core.

Preferably, the depression depth is 0.3mm to 0.8 mm.

Preferably, the functional pores have a diameter of 0.1 mm.

Preferably, the protective layer is a polytetrafluoroethylene layer.

Preferably, the peripheral fiber filaments are aramid fibers.

Preferably, the peripheral filaments store lubricating grease.

Preferably, the diameter of the peripheral filaments is 1 to 1.5 times the diameter of the central steel wire.

Compared with the prior art, the utility model has the beneficial effects that: according to the extrusion-proof composite steel wire rope core provided by the utility model, the outer layer of the rope core is completely coated with the polytetrafluoroethylene protective layer with a special structure, and the functional holes on the polytetrafluoroethylene protective layer can enable the rope core to normally perform a lubricating function. And the existence of the grease leads the concave part to form certain vacuum when being subjected to friction extrusion and the like, and the vacuum plays the role of a sucker, thereby leading the rope core and the rope strand to be closely adsorbed together and reducing the possibility of extrusion of the rope core. Meanwhile, the rope core can be protected by the completely coated protective layer, and abrasion of the rope core caused by friction between the rope core and the rope strands coated on the rope core is reduced. The service life of the rope core and the whole steel wire rope is prolonged.

And the composite rope core of the steel wire composite polymer fiber can ensure that the supporting force of the rope core is enough, the winding performance is good, and simultaneously, grease can be stored for lubrication, so that the maintenance work of the steel wire rope in the using process is ensured.

Drawings

FIG. 1 is a schematic structural view of an anti-extrusion composite steel cord core of the present invention;

FIG. 2 is a schematic view of the structure of the recess and the functional hole of the passivation layer shown in FIG. 1 according to the present invention.

In the figure: 100-composite rope core, 200-protective layer, 110-rope core strand, 111-central steel wire, 112-fiber wire, 201-recess, 202-functional hole.

Detailed Description

To further describe the present invention in detail, the following description is made with reference to the accompanying drawings. It is to be noted that the embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the present embodiment provides an anti-extrusion composite steel wire rope core, which includes a composite rope core 100 and a protective layer 200; the composite core 100 includes a plurality of core strands 110; the core strand 110 comprises a central steel wire 111 and a plurality of peripheral fiber filaments 112; the core strands 110 are mutually wound and twisted to form the composite core 100; the protective layer 200 is completely coated on the outer layer of the composite rope core 100; a plurality of recesses 201 are regularly distributed on the surface of the protective layer 200; the recess has a functional hole 202 in the center.

Preferably, when the recesses 201 are arranged longitudinally along the composite cord 100, the recesses 201 are spaced from the recesses 201 by a lay length. It should be explained that the lay length refers to the straight distance between the starting and ending points where the steel wire is rotated one revolution (360 °) around the core of the strand or strand when twisting or plying the rope.

Preferably, when the recesses 201 are arranged along the transverse direction of the composite rope core 100, the recesses 201 in adjacent columns are arranged in a staggered manner. It is understood that the depressions 201 are spaced from the depressions 201 in the transverse direction by a row of longitudinal depressions 201, i.e., the depressions 201 are not distributed at adjacent left and right positions of the depressions 201.

In this embodiment, the recess 201 is circular and has a diameter equal to the lay length of the cord core. It will be appreciated that the shape of the recess 201 may be varied in actual production according to functional requirements. And because the longitudinal distribution distance of the concave 201 is determined by the lay length of the rope core, the diameter of the concave 201 is equal to the lay length of the rope core, so that enough concave 201 is distributed in the longitudinal direction of the protective layer. It should be understood that the shape of the recess 201 is merely illustrative and not intended to limit the scope of the present application.

Preferably, the depth of the recess 201 is 0.3mm to 0.8 mm.

Preferably, the functional hole 202 has a diameter of 0.1 mm.

Preferably, the protective layer 200 is a teflon layer.

Preferably, the peripheral fiber filaments 112 are aramid fibers. In this embodiment, aramid fibers are selected as the peripheral filaments 112, but in the actual production process, the peripheral filaments can be replaced by natural filaments such as jute, sisal and the like by using the cord core of a steel wire rope with a less harsh use environment in part in consideration of economic benefits. It should be understood that the foregoing is illustrative only and is not intended to limit the scope of the utility model.

Preferably, the peripheral filaments 112 store lubricating grease.

Preferably, the diameter of the peripheral filaments 112 is 1 to 1.5 times the diameter of the central steel wire 111.

According to the extrusion-proof composite steel wire rope core provided by the utility model, the outer layer of the rope core is completely coated with the polytetrafluoroethylene protective layer with a special structure, and the functional holes on the polytetrafluoroethylene protective layer can enable the rope core to normally perform a lubricating function. And the existence of the grease leads the concave part to form certain vacuum when being subjected to friction extrusion and the like, and the vacuum plays the role of a sucker, thereby leading the rope core and the rope strand to be closely adsorbed together and reducing the possibility of extrusion of the rope core. Meanwhile, the rope core can be protected by the completely coated protective layer, and abrasion of the rope core caused by friction between the rope core and the rope strands coated on the rope core is reduced. The service life of the rope core and the whole steel wire rope is prolonged.

The above-disclosed embodiments are merely illustrative of the present invention, which should not be construed as limiting the scope of the utility model, and therefore, the present invention is not limited thereto.

The scope of the present invention should be determined by the following claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these should be considered within the scope of the utility model.

Claims

1. An anti-extrusion composite steel wire rope core comprises a composite rope core and a protective layer; the composite rope core comprises a plurality of rope core strands; the rope core strand comprises a central steel wire and a plurality of peripheral fibers; the rope core strands are mutually wound, wrapped and twisted to form a composite rope core; the protective layer is completely coated on the outer layer of the composite rope core; a plurality of depressions are regularly distributed on the surface of the protective layer; the center of the recess is provided with a functional hole.

2. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: when the depressions are longitudinally arranged along the composite rope core, a lay length is formed between the depressions.

3. The extrusion-resistant composite steel cord core according to claim 2, characterized in that: when the depressions are transversely arranged along the composite rope core, the depressions of adjacent columns are arranged in a staggered manner.

4. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the diameter of the recess is equal to the lay length of the rope core.

5. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the depth of the recess is 0.3mm to 0.8 mm.

6. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the diameter of the functional hole is 0.1 mm.

7. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the protective layer is a polytetrafluoroethylene layer.

8. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the peripheral fiber filaments are aramid fibers.

9. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: lubricating grease is stored in the peripheral fiber yarns.

10. The extrusion-resistant composite steel cord core according to claim 1, characterized in that: the diameter of the peripheral fiber filaments is 1 to 1.5 times of the diameter of the central steel wire.