CN112853785A

CN112853785A - Elevator steel wire rope with high-strength synthetic fiber core

Info

Publication number: CN112853785A
Application number: CN202110220545.3A
Authority: CN
Inventors: 张�浩; 丁家新
Original assignee: Wuxi Universal Steel Rope Co Ltd
Current assignee: Wuxi Universal Steel Rope Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-05-28

Abstract

The invention discloses an elevator steel wire rope with a high-strength synthetic fiber core, which comprises a steel wire rope body, wherein the steel wire rope body is composed of a core strand at the center and a plurality of outer strands wrapping and twisting the periphery of the core strand, the core strand is formed by twisting 3-4 large strands, each large strand is formed by twisting a plurality of small strands, each small strand is formed by twisting 500-1000 polyester filaments, and the specification of the polyester filaments is (3000-10000) dtex/(500-1200) f. The steel wire rope is prepared by directly wrapping and twisting the core strands by the outer layer strands, the core strands are formed by twisting 3-4 large strands, each large strand is formed by twisting a plurality of small strands, each small strand is formed by twisting 500-1000 polyester filaments, and compared with a sisal rope core formed by integrally twisting, the core strands have the characteristic of good diameter uniformity, and the diameter fluctuation of the core strands is not more than 1.5%, so that the abrasion of the steel wire rope can be reduced, and the service life of the steel wire rope is prolonged.

Description

Elevator steel wire rope with high-strength synthetic fiber core

Technical Field

The invention relates to the technical field of steel wire ropes, in particular to an elevator steel wire rope with a high-strength synthetic fiber core.

Background

At present, the steel wire rope for the elevator mainly comprises a steel core structure and a fiber core structure. The steel wire rope with the steel core structure has small oil storage capacity, and oil is required to be added regularly for lubrication in subsequent maintenance. The steel wire rope with the fiber core structure is mainly made of sisal hemp of natural short fibers, the diameter fluctuation is large, the uniformity of diameter poker is poor, when an elevator runs, the elevator needs to pass through a traction wheel, a diversion wheel, a guide wheel and the like, and repeatedly bends and runs in a fixed rope groove, extrusion and abrasion exist between steel wires and the rope groove, the steel wires are easy to break, the fluctuation of the diameter of a rope core can cause the diameter fluctuation of the steel wire rope, the abrasion of the steel wires is further intensified, the service life of the steel wire rope is greatly shortened, and certain safety risk is brought; thus, a solution is urgently needed.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide an elevator wire rope having a high-strength synthetic fiber core, which solves the problems of the background art.

The purpose of the invention is realized by the following technical scheme:

the utility model provides an elevator wire rope with high strength synthetic fiber core, includes the wire rope body, the wire rope body comprises the core strand of center department and the outer strand of stranded on the core strand periphery of package twist with fingers, the core strand is twisted with fingers by 3 ~ 4 big strands and is formed, and every big strand is twisted with fingers by many little strands and forms, and every little strand is twisted with fingers by 500 ~ 1000 polyester filament and forms, polyester filament's specification is (3000 ~ 10000) dtex/(500 ~ 1200) f.

As a preferable scheme of the present invention, the outer layer strand is composed of 1 central steel wire, 9 inner layer steel wires and 9 outer layer steel wires, the 9 inner layer steel wires are uniformly twisted around the outer side of the central steel wire, and the 9 outer layer steel wires are uniformly twisted around the outer side of the 9 inner layer steel wires.

In a preferred embodiment of the present invention, the outer layer strands are 9 strands.

In a preferred embodiment of the present invention, the core strand is twisted from 3 large strands.

In a preferred embodiment of the present invention, the core strand is formed by twisting 4 large strands.

In a preferred embodiment of the present invention, the 4 large strands include a first large strand, a second large strand, a third large strand and a fourth large strand, the first large strand and the second large strand are twisted to form a first sub-strand, the third large strand and the fourth large strand are twisted to form a second sub-strand, and the first sub-strand and the second sub-strand are twisted to form the core body.

The invention has the beneficial effects that the steel wire rope is prepared by directly wrapping and twisting the core strand by the outer layer strand, the core strand is formed by twisting 3-4 large strands, each large strand is formed by twisting a plurality of small strands, each small strand is formed by twisting 500-1000 polyester filaments, the polyester filaments are (3000-10000) dtex/(500-1200) f, compared with the integrally twisted sisal rope core, the core strand has the characteristic of good diameter uniformity, and the diameter fluctuation is not more than 1.5%, so that the abrasion of the steel wire rope can be reduced, and the service life of the steel wire rope can be prolonged.

Drawings

Fig. 1 is a schematic structural view of an elevator rope having a high strength synthetic fiber core;

FIG. 2 is a schematic structural view of the outer layer strands;

FIG. 3 is a schematic view of the structure of a core strand according to one embodiment;

FIG. 4 is a schematic structural view of a core strand according to the second embodiment.

In the figure:

1. an outer layer strand; 2. a core strand;

11. a central steel wire; 12. an inner layer steel wire; 13. an outer layer steel wire;

21. a large strand; 22. a small strand;

201. a large strand; 202. and (5) small strands.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the embodiments described herein are illustrative only and are not limiting upon the present invention.

Example one

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an elevator rope having a high-strength synthetic fiber core; FIG. 2 is a schematic structural view of the outer layer strands; FIG. 3 is a schematic view of the structure of a core strand according to one embodiment;

in this embodiment, an elevator wire rope with high strength synthetic fiber core, includes the wire rope body, the wire rope body comprises core strand 2 and the 9 outer layer strands 1 of package twisting on core strand 2 periphery of center department, core strand 2 is twisted with fingers by 3 big strands 21, and every big strand 21 is twisted with fingers by many little strands 22 and is formed, and every little strand 22 is twisted with fingers by 500 ~ 1000 polyester filament yarns and is formed, polyester filament's specification is (3000 ~ 10000) dtex/(500 ~ 1200) f.

Specifically, in this embodiment, the outer layer strand 1 is composed of 1 central steel wire 11, 9 inner layer steel wires 12 and 9 outer layer steel wires 13, the 9 inner layer steel wires 12 are uniformly twisted on the outer side of the central steel wire 11, and the 9 outer layer steel wires 13 are uniformly twisted on the outer side of the 9 inner layer steel wires 12.

Example two

Referring to fig. 4, in the present embodiment, an elevator steel wire rope with a high-strength synthetic fiber core includes a steel wire rope body, the steel wire rope body is composed of a core strand at the center and 9 outer strands wrapped and twisted on the outer periphery of the core strand, the core strand is formed by twisting 4 large strands 201, each large strand 201 is formed by twisting a plurality of small strands 202, each small strand 202 is formed by twisting 500 to 1000 polyester filaments, and the polyester filaments have a specification of (3000 to 10000) dtex/(500 to 1200) f.

Specifically, in this embodiment, outer strand comprises 1 central steel wire, 9 inlayer steel wires and 9 outer steel wires, 9 even package of inlayer steel wire twist with the central steel wire outside, 9 outer steel wires evenly package twist with the fingers with the outer side of 9 inlayer steel wires.

Specifically, in this embodiment, the 4 large strands 201 include a first large strand, a second large strand, a third large strand, and a fourth large strand, the first large strand and the second large strand are twisted to form a first sub-strand, the third large strand and the fourth large strand are twisted to form a second sub-strand, and the first sub-strand and the second sub-strand are twisted to form the core body.

This embodiment is a preferable aspect of the present invention, and the core strand of the steel cord with a high fatigue life has the following characteristics:

A. the water absorption is poor, the moisture regain is less than 0.4 percent and is far lower than that of the sisal rope core;

B. the tensile strength is high and is 3 times of that of a sisal hemp rope core with the same diameter, so that the breaking force of the steel wire rope is improved by 8-10%;

C. the heat resistance stability is good, the melting point is more than 200 ℃, and deformation can not occur in the oiling process;

D. the bending resistance and the wear resistance are good, and after the steel wire rope is bent for 400 ten thousand times, the fiber disassembly fracture is not more than 20%;

E. the oil storage performance is good, the grease is stored on the polyester filament yarns and in gaps among the yarns by means of adhesion, and the oil content reaches over 10 percent; grease in the rope core is slowly released, and the surface of the steel wire rope is still lubricated by the grease after being bent for 400 ten thousand times;

F. the diameter uniformity is good, the fluctuation of the rope core diameter is not more than 1.5 percent and is far lower than the fluctuation range of 6 to 8 percent of the sisal rope core;

G. has the characteristics of stain resistance, static resistance and corrosion resistance.

The fatigue life of the steel wire rope adopting the core strand can be prolonged by 100-120%.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides an elevator wire rope with high strength synthetic fiber core, includes the wire rope body, its characterized in that: the steel wire rope body is composed of a core strand at the center and a plurality of outer strands wrapping and twisting on the periphery of the core strand, the core strand is formed by twisting 3-4 large strands, each large strand is formed by twisting a plurality of small strands, each small strand is formed by twisting 500-1000 polyester filaments, and the specification of the polyester filaments is (3000-10000) dtex/(500-1200) f.

2. An elevator rope having a high strength synthetic fiber core as claimed in claim 1, characterized in that: the outer strand comprises 1 central steel wire, 9 inlayer steel wires and 9 outer steel wires, 9 even package of inlayer steel wire twist with the central steel wire outside, 9 outer steel wires evenly package twist with the fingers with the 9 inlayer steel wire outsides.

3. An elevator rope having a high strength synthetic fiber core as claimed in claim 2, characterized in that: the outer layer strands are 9 strands.

4. An elevator rope having a high strength synthetic fiber core according to any one of claims 1 to 3, characterized in that: the core strand is formed by twisting 3 large strands.

5. An elevator rope having a high strength synthetic fiber core according to any one of claims 1 to 3, characterized in that: the core strand is formed by twisting 4 large strands.

6. An elevator rope having a high strength synthetic fiber core as claimed in claim 5, wherein: the 4 large strands comprise a first large strand, a second large strand, a third large strand and a fourth large strand, the first large strand and the second large strand are twisted into a first sub-strand, the third large strand and the fourth large strand are twisted into a second sub-strand, and the first sub-strand and the second sub-strand are twisted into the rope core body.