CN216304285U - Galvanized steel wire rope with 7x19 structure - Google Patents
Galvanized steel wire rope with 7x19 structure Download PDFInfo
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- CN216304285U CN216304285U CN202121427960.8U CN202121427960U CN216304285U CN 216304285 U CN216304285 U CN 216304285U CN 202121427960 U CN202121427960 U CN 202121427960U CN 216304285 U CN216304285 U CN 216304285U
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Abstract
The utility model discloses a galvanized steel wire rope with a 7x19 structure, which comprises: 7 thigh structure strands, wherein 1 thigh structure strand is core thigh structure strand, and other 6 thigh structure strands are outer thigh structure strand, and outer thigh structure strand evenly arranges around core thigh structure strand and forms the wire rope that the cross-section is regular hexagon, and every thigh structure strand includes: 1 root having a diameter d1A central layer of 6 steel filaments with a diameter d2The steel wire monofilament is formed by weaving and twisting 1 steel wire monofilament and 12 steel wire monofilaments with the diameter d3The steel wire monofilaments are wound around the outer interlayer formed by twisting 6 steel wire monofilaments, and the cross section of the structural strand is in a regular hexagon shape. The utility model forms 1+6+12 monofilaments by twisting in one step to obtain 1 mark19 structure strand wires, the steel wire monofilament is the line contact, and the wire rope of line contact has better fatigue property.
Description
Technical Field
The utility model discloses a galvanized steel wire rope with a 7x19 structure, and relates to the technical field of steel wire ropes.
Background
The galvanized steel wire rope is widely applied to the occasions of industry, aerospace, hoisting and transporting machinery and the like, and market research finds that the galvanized steel wire rope with a 7x19 structure is produced on the market in the mode shown in figure 1, a tubular machine is used for stranding, firstly twisting 1+6 for forming, then twisting (1+6) +12 for forming, and finally stranding the stranded wires to obtain a finished product, so that the (1+6) +12 stranded wires required by the steel wire rope need to be formed through 2 steps, the forming steps are complex, the equipment and the space are occupied, resources are wasted, and the production efficiency is not high; meanwhile, the cross section of the steel wire rope strand produced by using the tubular machine is circular, and the single wire is in point contact, so that the fatigue is poor.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the background technology, the utility model provides the galvanized steel wire rope with the 7x19 structure, and the fatigue performance of the steel wire rope is improved.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a 7x19 structural galvanized steel wire rope, comprising: 7 strands of structural strands, wherein 1 strand of structural strands is core strand structural strands, other structural strands are outer strand structural strands, 6 strands of outer strand structural strands are uniformly distributed around the core strand structural strands to form a steel wire rope with a regular hexagonal section,
each structural strand comprising: 1 root having a diameter d1A central layer of 6 steel filaments of diameter d2The steel wire monofilament is formed by weaving and twisting 1 steel wire monofilament and 12 steel wire monofilaments with the diameter d3The steel wire single wires are wound around the outer interlayer formed by weaving and twisting 6 steel wire single wires, and the cross section of the structural strand is in a regular hexagon shape;
the steel wire monofilament comprises the following components in percentage by weight: 0.3 to 1.15 percent of C, 0.1 to 1.1 percent of Mn, 0.1 to 0.9 percent of Si, the content of S and P is not more than 0.15 percent, the content of Cr is 0.2 to 0.4 percent, the content of Cu is 0.2 percent, and the balance is Fe.
Further, d is1、d2、d3The following relationship is satisfied: d3＝d2≤d1。
Furthermore, the ratio of the diameter of the steel wire in the middle layer to the diameter of the steel wire in the central layer in the structural plied yarn is within the range of d2/d1＝[0.8，1.0]。
Further, the diameters of the steel wire filaments of the middle layer and the outer middle layer of the core strand structure plied yarns are larger than the diameters of the steel wire filaments of the middle layer and the outer middle layer of the outer layer strand structure plied yarns.
Further, the diameter range of the intermediate layer steel wire and the diameter range of the outer intermediate layer steel wire in the structural plied yarn are as follows: 0.125-0.35 mm.
Further, the diameter range of the central layer steel wire in the structural strand is as follows: 0.125-0.36 mm.
Further, hot galvanizing treatment is carried out on the surface of the steel wire.
Furthermore, the twisting direction and the twisting distance of the steel wire monofilaments of the central layer, the middle layer and the outer layer are the same, and the steel wire monofilaments are in line contact.
Has the advantages that: the 1+6+12 monofilaments are twisted and formed in one step, so that the forming steps can be simplified, and the 1 x19 structural compound yarn is obtained and used as the structural compound yarn for the 7x19 structural galvanized steel wire rope, so that the resources and the space can be saved, and the production efficiency is improved.
The steel wire single wires are twisted together in the same twisting direction and the same twisting distance in one-step forming, the cross section of the twisted structural compound wire is in a central symmetry and a very stable regular hexagon, the steel wire single wires are in line contact, and the steel wire rope in line contact has good fatigue performance.
Drawings
FIG. 1 is a cross-sectional view of a prior art galvanized steel wire rope of 7X19 construction;
FIG. 2 is a cross-sectional view of a galvanized steel wire rope of 7X19 structure according to the present invention;
FIG. 3 is a cross-sectional view of a single step formed 1X 19 strand of the present invention;
FIG. 4 is a schematic view of one-step forming twisting in the present invention;
FIG. 5 is a schematic view of line contact between monofilaments.
Detailed Description
The following describes the embodiments in further detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
One embodiment is shown in FIGS. 2-3: a 7x19 structural galvanized steel wire rope, comprising: 7 strands of structural strands, wherein 1 strand of structural strands is core strand structural strands, other structural strands are outer strand structural strands, 6 strands of outer strand structural strands are uniformly distributed around the core strand structural strands to form a steel wire rope with a regular hexagonal section,
each structural strand comprising: 1 root having a diameter d1A central layer of 6 steel filaments of diameter d2The steel wire monofilament is formed by weaving and twisting 1 steel wire monofilament and 12 steel wire monofilaments with the diameter d3The steel wire single wires are wound around the outer interlayer formed by weaving and twisting 6 steel wire single wires, and the cross section of the structural strand is in a regular hexagon shape;
the steel wire monofilament comprises the following components in percentage by weight: 0.3 to 1.15 percent of C, 0.1 to 1.1 percent of Mn, 0.1 to 0.9 percent of Si, the content of S and P is not more than 0.15 percent, the content of Cr is 0.2 to 0.4 percent, the content of Cu is 0.2 percent, and the balance is Fe.
D is1、d2、d3The following relationship is satisfied: d3＝d2≤d1。
The ratio of the diameter of the middle layer steel wire to the diameter of the central layer steel wire in the structural plied yarn is within the range of d2/d1＝[0.8，1.0]。
The diameters of the steel wire monofilaments of the middle layer and the outer middle layer of the core strand structure plied yarn are larger than those of the steel wire monofilaments of the middle layer and the outer middle layer of the outer layer strand structure plied yarn.
The diameter range of the intermediate layer steel wire and the diameter range of the outer intermediate layer steel wire in the structural plied yarn are as follows: 0.125-0.35 mm.
The diameter range of the central layer steel wire in the structural strand is as follows: 0.125-0.36 mm.
And hot galvanizing treatment is carried out on the surface of the steel wire.
The twisting directions and the twisting distances of the steel wire monofilaments of the central layer, the middle layer and the outer middle layer are the same, and the steel wire monofilaments are in line contact.
As shown in fig. 4, the preparation steps of the steel wire rope of the above embodiment are as follows:
step one, selecting smooth steel wires with the diameter of phi 1.2mm, performing hot galvanizing on the smooth steel wires with the diameter of phi 1.2mm, and drawing to obtain the optimal monofilaments with the diameters of phi 0.25mm, phi 0.22mm and phi 0.20 mm.
And step two, putting the monofilaments of phi 0.25mm, phi 0.22mm and phi 0.20mm obtained in the step one on a double-twisting machine for stranding, arranging wires by taking 0.25+6 multiplied by 0.22+12 multiplied by 0.22 as a core strand structure and taking 0.25+6 multiplied by 0.20+12 multiplied by 0.20 as an outer layer strand structure, wherein the paying-off tension range of the central monofilament is 3.0 +/-0.5 Kgf, the paying-off tension range of the second layer monofilament and the third layer monofilament is 1.2 +/-0.3 Kgf, and twisting and forming are carried out in one step to obtain the 1 multiplied by 19 structure stranded wire with the cross section of a regular hexagon.
And step three, putting the 1 multiplied by 19 structural folded yarn obtained in the step two on a stranding machine for stranding to obtain the galvanized steel wire rope with the diameter of 7 multiplied by 19-phi 3.0 mm.
The wire rope fatigue data are compared in table 1.
| 7x19 kinds of wire ropes | Fatigue value/time |
| Example 1 Steel wire rope | 214560 |
| Steel wire rope by traditional process | 151320 |
TABLE 1
From the above table, it can be seen that: compared with the traditional process, the production efficiency is improved by 50%, all steel wires are twisted together in the same twisting direction and the same twisting distance in one-step forming, the cross section of the twisted strand is typically in the form of a central symmetrical and stable regular hexagon, the single wires are in line contact as shown in figure 5, and the fatigue performance of the steel wire rope in line contact is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A galvanized steel wire rope with a 7x19 structure, which is characterized by comprising: 7 strands of structural strands, wherein 1 strand of structural strand is a core strand structure strand, the other 6 strands of structural strands are outer layer strands, the outer layer strands are uniformly distributed around the core strand structure strand to form a steel wire rope with a regular hexagonal section,
each structural strand comprising: 1 root having a diameter d1A central layer of 6 steel filaments of diameter d2The steel wire monofilament is formed by weaving and twisting 1 steel wire monofilament and 12 steel wire monofilaments with the diameter d3The steel wire single wires are wound on the outer interlayer formed by weaving and twisting 6 steel wire single wires, and the cross section of the structural strand is in a regular hexagon shape.
2. A 7x19 structural galvanized steel wire rope according to claim 1, characterized in that d1、d2 、d3The following relationship is satisfied: d3= d2≤d1。
3. A 7x19 structural galvanized steel wire rope according to claim 1, characterized in thatThe ratio of the diameter of the steel wire in the middle layer to the diameter of the steel wire in the central layer in the structural plied yarn is d2/ d1 =[0.8，1.0]。
4. A 7x19 structural galvanized steel wire rope according to claim 1, characterized in that the diameter of the steel filaments of the middle and outer intermediate layers of the core strand structural strands is larger than the diameter of the steel filaments of the middle and outer intermediate layers of the outer strand structural strands.
5. A 7x19 structural galvanized steel wire rope according to claim 1, characterized in that the diameters of the middle layer steel wires and the outer layer steel wires in the structural strands are in the range of: 0.125-0.35 mm.
6. A 7x19 structural galvanized steel wire rope according to claim 1, characterized in that the diameter range of the central layer steel wires in the structural strands is: 0.125-0.36 mm.
7. The galvanized steel wire rope with a 7x19 structure according to claim 1, wherein the surface of the steel wire is subjected to hot galvanizing treatment.
8. The galvanized steel wire rope with a 7x19 structure as claimed in claim 1, wherein the steel filaments of the central layer, the middle layer and the outer layer have the same lay direction and lay length, and are in line contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427960.8U CN216304285U (en) | 2021-06-25 | 2021-06-25 | Galvanized steel wire rope with 7x19 structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427960.8U CN216304285U (en) | 2021-06-25 | 2021-06-25 | Galvanized steel wire rope with 7x19 structure |
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| Publication Number | Publication Date |
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| CN216304285U true CN216304285U (en) | 2022-04-15 |
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| CN202121427960.8U Active CN216304285U (en) | 2021-06-25 | 2021-06-25 | Galvanized steel wire rope with 7x19 structure |
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- 2021-06-25 CN CN202121427960.8U patent/CN216304285U/en active Active
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