CN102021852A

CN102021852A - Steel wire rope for micro-rotation high-bearing crane and making method thereof

Info

Publication number: CN102021852A
Application number: CN2010102919084A
Authority: CN
Inventors: 杨岳民; 吴海峰
Original assignee: Jiangsu Safety Wire Rope Co Ltd
Current assignee: Jiangsu Safety Wire Rope Co Ltd
Priority date: 2010-09-26
Filing date: 2010-09-26
Publication date: 2011-04-20

Abstract

The invention discloses a steel wire rope for a micro-rotation high-bearing crane and a making method thereof. The steel wire rope comprises a center strand, six inner-layer strands and six outer-layer strands; the six inner-layer strands are uniformly wrapped and entwisted outside the center stand; and the six outer-layer stands are uniformly wrapped and entwisted outside the inner-layer stands. The making method of the steel wire rope for the micro-rotation high-bearing crane comprises the steps of: firstly, separately entwisting the center stand, the inner-layer stands and the outer-layer strands, and then entwisting the one center strand, the six inner-layer strands and the six outer-layer strands in one step to obtain the steel wire rope. The steel wire rope for the micro-rotation high-bearing crane has larger breaking force coefficient and steel wires have smaller rotation angel per meter.

Description

A kind of little rotation high-mechanic crane steel wire rope and preparation method thereof

Technical field

The present invention relates to a kind of crane steel wire rope, relate in particular to a kind of little rotation high-mechanic crane steel wire rope and preparation method thereof.

Background technology

Crane adopts the method preparation of repeatedly twisting moulding mostly with steel wire rope and gets at present, the breaking force of rope coefficient that makes, and the anglec of rotation is big in use, is example with wirerope diameter 14mm, when loading 1 ton of weight object, and every meter rotation 29 degree.The so big anglec of rotation has brought great difficulty for the operation of crane, also exists potential safety hazard simultaneously.

Summary of the invention

The present invention is intended to overcome above the deficiencies in the prior art, provides a kind of anglec of rotation little little rotation high-mechanic crane steel wire rope and preparation method thereof.

In order to solve the problems of the technologies described above, the invention provides following technical scheme:

A kind of little rotation high-mechanic heavy-duty machine steel wire rope is characterized in, comprises central strand, internal layer thigh and outer layer strand; The number of described internal layer thigh is 6 strands, and wraps the outside of twisting with the fingers in central strand equably; The number of described outer layer strand is 6 strands, and wraps the outside of twisting with the fingers at the internal layer thigh equably.

Further, described central strand and internal layer thigh by 1 core wire and equably bag twist with the fingers at the six roots of sensation steel wire in the core wire outside and form.

Further, described outer layer strand comprise 1 core wire, the internal layer of forming by 7 steel wire of internal layer and the skin of forming by 14 cover wires; Described steel wire of internal layer wraps the outside of sth. made by twisting at core wire equably; Described cover wire wraps the skin of sth. made by twisting at steel wire of internal layer equably; Between two steel wires of described steel wire of internal layer, be provided with filler wires in the formed outside sideshake.

Little rotation high-mechanic heavy-duty machine of the present invention is characterized in that with the preparation method of steel wire rope elder generation is twisting central strand, internal layer thigh and outer layer strand respectively, and 1 burst of central strand, 6 strands of internal layer thighs become steel wire rope with 6 strands of outer layer strand primary twistings then.

Beneficial effect of the present invention is embodied in the following aspects:

1, minimum breaking force is big, and minimum breaking force coefficient ordinary steel wire is 0.356, and steel wire rope of the present invention can reach 0.405, and therefore steel wire rope bearing capacity of the present invention is also stronger.(seeing Table 1).

2, the anglec of rotation less (seeing Table 2) of every meter on steel wire.

Table 1 (is example with 6*29Fi+IWR-14mm)

Table 2 (is example with 6*29Fi+IWR-14mm)

Description of drawings

Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is little rotation high-mechanic heavy-duty machine construction of wire rope schematic diagram of the present invention;

Be labeled as among the figure: 1-central strand, 2-internal layer thigh, 2.1-core wire, 2.2-cover wire, 3-outer layer strand, 3.1-core wire, 3.2-steel wire of internal layer, 3.3-cover wire, 3.4-filler wires.

The specific embodiment

Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.

Embodiment 1

As shown in Figure 1, a kind of little rotation high-mechanic heavy-duty machine steel wire rope comprises central strand 1, internal layer thigh 2 and outer layer strand 3; The number of internal layer thigh 1 is 6 strands, and wraps the outside of twisting with the fingers in central strand 1 equably; The number of outer layer strand 3 is 6 strands, and wraps the outside of twisting with the fingers at internal layer thigh 1 equably.Central strand 1 and internal layer thigh 2 by 1 core wire 2.1 and equably bag twist with the fingers at the six roots of sensation steel wire 2.2 in core wire 2.1 outsides and form.Outer layer strand 3 comprises 1 core wire 3.1, the internal layer of being made up of 7 steel wire of internal layer 3.2 and the skin of being made up of 14 cover wires 3.3; Steel wire of internal layer 3.2 wraps the outside of twisting with the fingers at core wire 3.1 equably; Cover wire 3.3 wraps the skin of twisting with the fingers at steel wire of internal layer 3.2 equably; Between 3.2 two steel wires of steel wire of internal layer, be provided with filler wires 3.4 in the formed outside sideshake.

Little rotation high-mechanic heavy-duty machine of the present invention preparation method of steel wire rope: elder generation is twisting central strand 1, internal layer thigh 2 and outer layer strand 3 respectively, and 1,6 strands of internal layer thighs 2 of 1 burst of central strand become steel wire rope with 6 strands of outer layer strand 3 primary twistings then.

It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a little rotation high-mechanic crane steel wire rope is characterized in that: comprise central strand, internal layer thigh and outer layer strand; The number of described internal layer thigh is 6 strands, and wraps the outside of twisting with the fingers in central strand equably; The number of described outer layer strand is 6 strands, and wraps the outside of twisting with the fingers at the internal layer thigh equably.

2. little rotation high-mechanic crane steel wire rope according to claim 1 is characterized in that: described central strand and internal layer thigh by 1 core wire and equably bag twist with the fingers at the six roots of sensation steel wire in the core wire outside and form.

3. little rotation high-mechanic crane steel wire rope according to claim 1 and 2 is characterized in that: described outer layer strand comprises 1 core wire, the internal layer of being made up of 7 steel wire of internal layer and the skin of being made up of 14 cover wires; Described steel wire of internal layer wraps the outside of sth. made by twisting at core wire equably; Described cover wire wraps the skin of sth. made by twisting at steel wire of internal layer equably; Between two steel wires of described steel wire of internal layer, be provided with filler wires in the formed outside sideshake.

4. the described little rotation high-mechanic crane of claim 1 is characterized in that with the preparation method of steel wire rope: twisting central strand, internal layer thigh and outer layer strand respectively earlier, 1 burst of central strand, 6 strands of internal layer thighs become steel wire rope with 6 strands of outer layer strand primary twistings then.