CN103741530A

CN103741530A - Double-compacted parallel laid wire rope for telescopic boom

Info

Publication number: CN103741530A
Application number: CN201410020807.1A
Authority: CN
Inventors: 马冬凯; 魏志远
Original assignee: Jiangsu Safety Wire Rope Co Ltd
Current assignee: Jiangsu Safety Wire Rope Co Ltd
Priority date: 2014-01-16
Filing date: 2014-01-16
Publication date: 2014-04-23

Abstract

The invention discloses a double-compacted parallel laid wire rope for a telescopic boom. The double-compaction parallel laid wire rope comprises a center strand, nine inner strands and nine outer strands, the nine inner strands are symmetrically laid outside the center strand in a wrapping manner, the nine outer strands are symmetrically laid in grooves in the surfaces of the inner strands in a wrapping manner, the wire rope is a compacted rope, the strands in the rope are in surface contact, the outer strands are compacted strands, and steel wires in the outer strands are in surface contact. Due to the fact that the structures of the rope strands are in surface contact via being extruded by a die and the compacted wire rope is also in surface contact with a pulley contact surface, the double-compacted parallel laid wire rope for the telescopic boom has ultrahigh breaking force, high abrasion resistance, crumpling resistance and impact load resistance. Bearing capacity of the wire rope is 20% higher than that of wire ropes with same diameter and strength, abrasion resistance is improved by 25% approximately, service life of the wire rope is long, and operation cost of a telescopic boom crane is reduced correspondingly.

Description

Two compacting Lang lay ropes for a kind of telescopic arm

Technical field

The present invention relates to a kind of steel wire rope, relate in particular to two compacting Lang lay ropes for a kind of telescopic arm.

Background technology

Along with Telescopic crane is towards maximizing and microminiaturized development, for telescopic arm, use the requirement of steel wire rope also more and more to two poles development, rupture pull force and pliability, ABRASION RESISTANCE etc. for steel wire rope require also more and more stricter, at present, existing telescopic arm can not meet the properties requirement of increasingly stringent with steel wire rope.

Summary of the invention

The object of the present invention is to provide two compacting Lang lay ropes for a kind of telescopic arm, it has high-bearing capacity, good flexility and the good feature of anti-wear performance, to solve the problems referred to above that in prior art, telescopic arm exists with steel wire rope.

For reaching this object, the present invention by the following technical solutions:

Two compacting Lang lay ropes for a kind of telescopic arm, it comprises 1 central strand, 9 internal layer thighs and 9 outer layer strand, described 9 internal layer thighs wrap symmetrically to be twisted with the fingers outside described central strand, described 9 outer layer strand are wrapped symmetrically and are twisted with the fingers in the groove on internal layer thigh surface, described steel wire rope is compacting rope, the interior thigh of restricting is face with thigh and contacts shape, and outer layer strand is compacting thigh, and a strand interior steel wire is face and contacts shape.

Especially, described steel wire rope is Lang lay rope, and cross section metal coefficient is high.

Especially, described outer layer strand is Seale, by outer 9 thick wires, 9 finer wire bags of internal layer, twist with the fingers 1 central hair and make, and every rhizoid within it layer silk with thread between groove in.

Especially, described internal layer thigh is that the outer bread of 1 central hair is twisted with the fingers 6 rhizoid structures.

Especially, described central strand is that the outer bread of 1 central hair is twisted with the fingers 6 rhizoids, and the outer bread of this 6 rhizoid is twisted with the fingers thick, thin each 6 rhizoids, and described filament is on the summit of internal layer silk, in the groove of described crin between internal layer silk and silk.

Beneficial effect of the present invention is, compared with prior art described telescopic arm uses two compacting Lang lay ropes because the structure of rope strand is face contact shape through mould extruding, after steel wire rope compacting, be also that face contacts with pulley contact-making surface, there is the rupture pull force of superelevation, stronger ABRASION RESISTANCE, crush resistance and resistance to shock loads performance.Outer layer strand adopts drawing die to be squeezed into face contact strand when producing, then close rope, after closing rope, steel wire rope is through forging compacting, so just greatly improved the whole rope rupture pull force of steel wire rope, improve relatively its bearing capacity raising 20% of the bearing capacity of telescopic arm and the steel wire rope of same diameter and intensity, it is nearly 25% that ABRASION RESISTANCE improves, and the long service life of steel wire rope has reduced the operating cost of Telescopic crane.

Accompanying drawing explanation

Fig. 1 is the cross section structure schematic diagram of two compacting Lang lay ropes for the telescopic arm that provides of the specific embodiment of the invention 1.

In figure:

1, central strand; 2, internal layer thigh; 3, outer layer strand.

The specific embodiment

Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate technical scheme of the present invention.

Refer to shown in Fig. 1, Fig. 1 is the cross section structure schematic diagram of two compacting Lang lay ropes for the telescopic arm that provides of the specific embodiment of the invention 1.

In the present embodiment, a kind of telescopic arm comprises a central strand 1, nine internal layer thighs 2 and nine outer layer strand 3 with two compacting Lang lay ropes, described nine internal layer thighs 2 wrap symmetrically to be twisted with the fingers outside described central strand 1, described nine outer layer strand 3 are wrapped symmetrically and are twisted with the fingers in the groove on internal layer thigh 2 surfaces, and described steel wire rope is compacting rope, and the interior thigh of rope is face with thigh and contacts shape, outer layer strand 3 is compacting thigh, in strand, steel wire is face contact shape, and described steel wire rope is Lang lay rope, and cross section metal coefficient is high.

Described central strand 1 is that the outer bread of a central hair is twisted with the fingers six roots of sensation silk, and the outer bread of this six roots of sensation silk twists with the fingers slightly, each six roots of sensation silk carefully, and described filament is on the summit of internal layer silk, described crin internal layer silk with thread between groove in.

Described internal layer thigh 2 is that the outer bread of a central hair is twisted with the fingers six roots of sensation silk structure.

Described outer layer strand 3 is Seale, by outer nine thick wires, nine finer wire bags of internal layer, twist with the fingers a central hair and make, and every rhizoid within it layer silk with thread between groove in.

Above-mentioned telescopic arm is face contact shape by the structure of two compacting Lang lay rope rope strands through mould extruding, after steel wire rope compacting, be also that face contacts with pulley contact-making surface, and steel wire rope is Lang lay rope, cross section metal is long-pending large, has the rupture pull force of superelevation, stronger ABRASION RESISTANCE, crush resistance and resistance to shock loads performance.With the steel wire rope of same diameter and intensity relatively its bearing capacity improve 25%, it is nearly 25% that ABRASION RESISTANCE improves, pliability has also obtained very large improvement, steel wire rope is close structure after compacting, poker is even, has meanwhile reduced the operating cost of telescopic arm.

Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention is not limited by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various variations and change, and these variations and change all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims

1. two compacting Lang lay ropes for a telescopic arm, it is characterized in that, comprise 1 central strand, 9 internal layer thighs and 9 outer layer strand, described 9 internal layer thighs wrap symmetrically to be twisted with the fingers outside described central strand, described 9 outer layer strand are wrapped symmetrically and are twisted with the fingers in the groove on internal layer thigh surface, and described steel wire rope is compacting rope, and the interior thigh of rope is face with thigh and contacts shape, outer layer strand is compacting thigh, and in strand, steel wire is face contact shape.

2. two compacting Lang lay ropes for telescopic arm according to claim 1, is characterized in that, described steel wire rope is Lang lay rope, and cross section metal coefficient is high.

3. according to two compacting Lang lay ropes for the telescopic arm described in claim 1 or 2 any one, it is characterized in that, described outer layer strand is Seale, by outer 9 thick wires, 9 finer wire bags of internal layer, twist with the fingers 1 central hair and make, and every rhizoid within it layer silk with thread between groove in.

4. according to two compacting Lang lay ropes for the telescopic arm described in claim 1 or 2 any one, it is characterized in that, described internal layer thigh is that the outer bread of 1 central hair is twisted with the fingers 6 rhizoid structures.

5. according to two compacting Lang lay ropes for the telescopic arm described in claim 1 or 2 any one, it is characterized in that, described central strand is that the outer bread of 1 central hair is twisted with the fingers 6 rhizoids, the outer bread of this 6 rhizoid is twisted with the fingers thick, thin each 6 rhizoids, described filament is on the summit of internal layer silk, in the groove of described crin between internal layer silk and silk.