CN202492757U

CN202492757U - A high-bearing-capacity compacted-strand steel wire rope for a tower crane

Info

Publication number: CN202492757U
Application number: CN2011204323390U
Authority: CN
Inventors: 潘宝龙; 陈剑钧
Original assignee: Jiangsu Safety Wire Rope Co Ltd
Current assignee: Jiangsu Safety Wire Rope Co Ltd
Priority date: 2011-11-04
Filing date: 2011-11-04
Publication date: 2012-10-17
Anticipated expiration: 2021-11-04

Abstract

The utility model discloses a high-bearing-capacity compacted-strand steel wire rope for a tower crane. The high-bearing-capacity compacted-strand steel wire rope comprises a central strand, six inner-layer strands, twelve secondary outer-layer strands, and eighteen outer-layer strands. The inner-layer strands are twisted and wrapped around the central strand in a line contact manner symmetrically; the secondary outer-layer strands comprise six thick strands and six thin strands, wherein the six thick strands are embedded in recesses between every two inner-layer strands in the line contact manner and the six thin strands are twisted and wrapped around the projections of six inner-layer strands in the line contact manner respectively; and the outer-layer strands are disposed on the outermost side of the steel wire rope through twisting and wrapping in the line contact manner symmetrically. Compared with a conventional steel wire rope, the high-bearing-capacity compacted-strand steel wire rope is greatly improved in terms of bearing capacity, wear resistance and rotation prevention performance.

Description

Tower crane is used the high-mechanic compaction-strand steel wire rope

Technical field

The utility model relates to a kind of steel wire rope, particularly, relates to tower crane and uses the high-mechanic compaction-strand steel wire rope.

Background technology

At present, high-lift tower crane is used 35W*7 structure class steel wire rope more, and the rupture pull force coefficient that this kind steel wire rope national standard requires is 0.36.Increase day by day along with the tower crane load-carrying; Also improve the requirement of the minimum breaking force of load-bearing wires rope day by day in market, if select the round-strand rope of said structure for use, its rupture pull force is not high; And easy to wear long afterwards contact time with pulley in use, will reduce greatly service life.

The utility model content

The purpose of the utility model is to above-mentioned defective of the prior art, proposes a kind of tower crane with better rupture pull force, ABRASION RESISTANCE and rotation resistance and uses the high-mechanic compaction-strand steel wire rope.

The technical scheme that realizes above-mentioned purpose is following:

Tower crane is used the high-mechanic compaction-strand steel wire rope, comprises central strand, 6 internal layer thighs, 12 outer layer strand and 18 outer layer strand.

Further, every sub-thread all is to twist with the fingers the core wire system of twisting with the fingers by 6 cover wires symmetry bag to form in the said steel wire rope, is face between said cover wire and core wire and contacts shape.

Further, said internal layer thigh symmetrically, be line and wrap the sth. made by twisting central strand touchingly.

Further, said time outer layer strand comprises 6 thick strand and 6 thin thighs, and wherein 6 thick thighs are the recess that line embeds adjacent 2 internal layer thighs touchingly, and 6 thin thighs are line and wrap the bossing of twisting with the fingers at 6 internal layer thighs touchingly respectively.

Further, said outer layer strand symmetrically, be line and wrap sth. made by twisting touchingly in the steel wire rope outermost.

The utlity model has following beneficial effect:

1, utilizes the mode of production of die drawing to twist with the fingers stranding, make to be face between strand interior steel wire and steel wire and to contact shape, strengthened steel wire rope metal effective area; The 35W*7 steel wire rope of contrast same size, intensity; The rupture pull force coefficient reaches 0.41, has improved closely 14%, and the bearing capacity of steel wire rope improves greatly.

2, the steel wire rope of this kind structure is divided into four layers of thigh, twists with the fingers the central strand system of twisting with the fingers by three layers of thigh bag and forms.Through adopting rational sth. made by twisting system technological balance steel wire rope ectonexine moment, reach the purpose that improves the steel wire rope resistance rotation performance.

3, wrap sth. made by twisting symmetrically in the steel wire rope outermost because steel wire rope is line contact shape by 18 outer layer strand, compare the 35W*7 steel wire rope, it is in use big with the contact area of pulley, ABRASION RESISTANCE good, thereby the steel wire rope long service life of this kind structure.

Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.

Description of drawings

Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:

Fig. 1 is the cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

Fig. 2 is the outer layer strand cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

Fig. 3 is time outer thick strand cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

Fig. 4 is time outer thin strand cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

Fig. 5 is the internal layer thigh cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

Fig. 6 is the central strand cross-sectional structure sketch map of the utility model tower crane with the high-mechanic compaction-strand steel wire rope.

In conjunction with accompanying drawing, Reference numeral is following among the utility model embodiment:

The 1-outer layer strand; 2-outer thick thigh; 3-outer thin thigh; 4-internal layer thigh; The 5-central strand.

The specific embodiment

Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.

Shown in Fig. 1-6, the tower crane of the utility model is used the high-mechanic compaction-strand steel wire rope, and structural table is shown DL1918AK, comprises 4,12 outer layer strand 2 of 5,6 internal layer thighs of central strand and 3 and 18 outer layer strand 1.

Every sub-thread is twisted with the fingers the core wire system of twisting with the fingers by 6 cover wires symmetry bag and is formed in the steel wire rope, is face between cover wire and core wire and contacts shape.

Internal layer thigh 4 symmetrically, be line and wrap touchingly and twist with the fingers central strand 5.

Inferior outer layer strand comprises 6 thick strand 2 and 6 thin thighs 3, and wherein 6 thick thighs are the recess that line embeds adjacent 2 internal layer thighs 4 touchingly, and 6 thin thighs are line and wrap the bossing of twisting with the fingers at 6 internal layer thighs 4 touchingly respectively.

Outer layer strand 1 symmetrically, be line and wrap sth. made by twisting touchingly in the steel wire rope outermost.

Said tower crane with the preparation method of high-mechanic compaction-strand steel wire rope is:

At first; On sth. made by twisting strand car, arranged steel wire through noseplate; Get outer layer strand 1, thin strand 3 of inferior skin, inferior skin slightly thigh 2, internal layer thigh 4, central strand 5 through closing up the stranding of mouth employing die drawing method sth. made by twisting; Be face between steel wire and steel wire in each strand and contact shape, effectively eliminate the stress of thigh again through post-former, be received on the I-beam wheel.

Next passes through noseplate with 6 inferior outer carefully burst 2,6 internal layer thighs of 3,6 thick thighs of inferior skin, 4 bag sth. made by twisting central strand 5 and arranges, and compresses through closing up mouth, effectively eliminates the stress of thigh again through post-former, is received in then on the I-beam wheel, gets the process wire rope.

Be to close rope at last, process wire rope and 18 outer layer strand 1 arranged through noseplate that through pre-former, mouthful compress through closing up, the last stress of effectively eliminating thigh again through post-former is received in formation finished product steel wire rope on the I-beam wheel again on finished car.

What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation 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.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. tower crane is used the high-mechanic compaction-strand steel wire rope, it is characterized by said tower crane and comprises central strand, 6 internal layer thighs, 12 outer layer strand and 18 outer layer strand with the high-mechanic compaction-strand steel wire rope.

2. tower crane according to claim 1 is used the high-mechanic compaction-strand steel wire rope, it is characterized in that, every sub-thread all is to twist with the fingers the core wire system of twisting with the fingers by 6 cover wires symmetry bag to form in the said steel wire rope, is face between said cover wire and core wire and contacts shape.

3. tower crane according to claim 1 is used the high-mechanic compaction-strand steel wire rope, it is characterized in that, said internal layer thigh symmetrically, be line and wrap the sth. made by twisting central strand touchingly.

4. tower crane according to claim 1 is used the high-mechanic compaction-strand steel wire rope; It is characterized in that; Said time outer layer strand comprises 6 thick strand and 6 thin strand; Wherein 6 thick thighs are the recess that line embeds adjacent 2 internal layer thighs touchingly, and 6 thin thighs are line and wrap the bossing of twisting with the fingers at 6 internal layer thighs touchingly respectively.

5. tower crane according to claim 1 is used the high-mechanic compaction-strand steel wire rope, it is characterized in that, said outer layer strand symmetrically, be line and wrap sth. made by twisting touchingly in the steel wire rope outermost.