CN115094657A - 15-strand rotation-resistant steel wire rope and manufacturing method thereof - Google Patents
15-strand rotation-resistant steel wire rope and manufacturing method thereof Download PDFInfo
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- CN115094657A CN115094657A CN202210848514.7A CN202210848514A CN115094657A CN 115094657 A CN115094657 A CN 115094657A CN 202210848514 A CN202210848514 A CN 202210848514A CN 115094657 A CN115094657 A CN 115094657A
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/068—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1028—Rope or cable structures characterised by the number of strands
- D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1056—Rope or cable structures twisted using alternate lay, i.e. the wires or filaments in the strands being oppositely inclined relative to the rope axis
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2023—Strands with core
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2025—Strands twisted characterised by a value or range of the pitch parameter given
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2038—Strands characterised by the number of wires or filaments
- D07B2201/2039—Strands characterised by the number of wires or filaments three to eight wires or filaments respectively forming a single layer
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
- D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3025—Steel
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/205—Avoiding relative movement of components
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2065—Reducing wear
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Abstract
The invention discloses a 15-strand rotation-resistant steel wire rope and a manufacturing method thereof, wherein the 15-strand rotation-resistant steel wire rope comprises an inner layer rope and an outer layer rope, the twisting direction of the inner layer rope is opposite to that of the outer layer rope, the twisting direction of the inner layer rope is in the same direction, and the twisting direction of the outer layer rope is in alternate twisting; the inner layer rope comprises a central strand and a first layer of rope strands, the first layer of rope strands consists of five first steel wire strands arranged along the circumferential direction of the central strand, and two adjacent first steel wire strands are in clearance fit; the outer layer rope comprises a second layer of rope strands which are wrapped and twisted outside the inner layer rope, the second layer of rope strands consists of nine second steel wire strands arranged along the circumferential direction of the inner layer rope, and two adjacent second steel wire strands are in clearance fit; the first strand, the center strand and the second strand are twisted in the same direction. The 15-strand rotation-resistant steel wire rope has smooth surface and good wear resistance; the inner layer rope and the outer layer rope are reversely twisted on the series-connection type basket rail rope combining machine in an on-line mode at one time, the torque of the inner layer rope and the torque of the outer layer rope are offset, and the rotation resistance performance of the steel wire rope can be effectively enhanced.
Description
Technical Field
The invention relates to the technical field of steel wire ropes, in particular to a 15-strand rotation-resistant steel wire rope and a manufacturing method thereof.
Background
In some service environments with large hoisting heights, the rotation resistance performance of the steel wire rope is required to be high, the existing rotation resistance steel wire ropes are mainly 18 × 7, 35(W) × 7, 18 × K7, 35(W) × K7 and other series, and the existing rotation resistance steel wire ropes are 18 × 7, 35(W) × 7, 18 × K7, 35(W) × K7 and other series, so that the flexibility is good, but the number of strands is large, the diameter of the steel wire is small, the steel wire rope is easy to wear, and the service life of the steel wire rope is greatly shortened.
Disclosure of Invention
The invention aims to provide a 15-strand rotation-resistant steel wire rope and a manufacturing method thereof, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a 15-strand rotation-resistant steel wire rope which comprises an inner layer rope and an outer layer rope, wherein the twisting direction of the inner layer rope is opposite to that of the outer layer rope, the twisting direction of the inner layer rope is in the same direction, and the twisting direction of the outer layer rope is in alternate twisting;
the inner layer rope comprises a central strand and a first layer rope strand wrapped and twisted outside the central strand, the first layer rope strand consists of five first steel wire strands arranged along the circumferential direction of the central strand, two adjacent first steel wire strands are in clearance fit, and the twisting directions of the first steel wire strands and the central strand are the same;
the outer layer rope comprises a second layer rope strand wrapped and twisted on the outer side of the inner layer rope, the second layer rope strand consists of nine second steel wire strands arranged along the circumferential direction of the inner layer rope, two adjacent second steel wire strands are in clearance fit, and the twisting directions of the second steel wire strands and the first steel wire strands are the same.
Preferably, the central strand, the first steel strand and the second steel strand have the same internal arrangement structure, and are composed of a central steel wire and six outer steel wires circumferentially arranged along the central steel wire, and two adjacent outer steel wires are in surface contact with each other.
Preferably, the twisting directions of the central strand, the first strand and the second strand are all left twisting directions.
Preferably, the inner layer rope is twisted in the same direction at the left side, and the outer layer rope is twisted alternately at the right side.
Preferably, the lay length of the central strand is 7.0-7.2 times of the strand diameter, and the lay lengths of the first steel strand and the second steel strand are 8.3-8.5 times of the strand diameter.
Preferably, the lay length of the outer layer rope is 6.5-6.7 times of the rope diameter, and the lay length of the inner layer rope is 0.49 times of the lay length of the outer layer rope.
A manufacturing method of a 15-strand rotation-resistant steel wire rope specifically comprises the following steps:
step one, drawing wires: drawing the semi-finished steel wire on a linear wire drawing machine to prepare a finished steel wire;
step two, stranding: the finished steel wire is connected in series with a three-piece type rolling tool through stranding equipment to carry out stranding-compaction on-line production of a central strand, a first steel wire strand and a second steel wire strand, and the strand compression ratio is selected to be 13% -15%;
step three, rope combination: and reversely twisting the twisted central strand, the first steel wire strand and the second steel wire strand on a rope twisting machine of the tandem type basket fence in an online manner at one time, wherein the first steel wire strand and the second steel wire strand are preformed and pass through a post-deforming device and a sizing device to prepare the 15-strand rotation-resisting steel wire rope.
The invention discloses the following technical effects: compared with the existing 18 multiplied by 7, 35(W) multiplied by 7, 18 multiplied by K7 and 35(W) multiplied by K7 series steel wire ropes, the 15-strand rotation-resistant steel wire rope has the advantages that the number of strands is small, the diameter of the steel wire is large, the wear resistance is good, the strands are compacted, the surface is smooth, the contact area with a pulley or a winding drum is increased, and the wear resistance is further improved; the inner layer rope is twisted in the same left direction, the outer layer rope is twisted in the same right direction, and the inner layer rope and the outer layer rope are twisted in a reverse one-time online mode on the tandem type basket rail rope combining machine, so that the torque of the inner layer and the torque of the outer layer of the steel wire rope are offset, and the rotation resistance performance of the steel wire rope is effectively enhanced. The manufactured steel wire rope has good wear resistance and rotation resistance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a 15-strand rotation-resistant steel cord according to the present invention;
FIG. 2 is an enlarged cross-sectional view of the core strand, first strand and second strand of the present invention;
fig. 3 is a schematic diagram of one-time reverse twisting of the inner layer rope and the outer layer rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the 15-strand rotation-resistant steel wire rope provided by the invention comprises an inner layer rope and an outer layer rope, wherein the inner layer rope comprises a central strand 1 and a first layer strand, the central strand 1 is wrapped in the first layer strand, the first layer strand consists of five first steel strands 2, and the five first steel strands 2 are uniformly and tightly arranged on the outer side of the central strand 1 along the circumferential direction to form a closed loop; the outer layer rope is a second layer rope strand wrapped and twisted on the outer side of the inner layer rope, the second layer rope strand consists of nine second steel strands 3, and the nine second steel strands 3 are arranged in a circle at equal intervals in the circumferential direction and abut against the outer side of the first steel strand 2.
The central strand 1, the first layer of steel wire strands 2 and the second layer of steel wire strands 3 are identical in internal arrangement structure and are respectively formed by arranging six outer layer steel wires 1.1, 2.1 and 3.1 outside the central steel wires 1.0, 2.0 and 3.0 and tightly arranging a circle along the circumferential direction and compacting the circle.
The diameters of the central strand 1, the first steel strand 2 and the second steel strand 3 are determined by the outer diameter of the 15-strand rotation-resistant steel wire rope provided by the invention, after the specification and the size of the required steel wire rope are determined, according to the outer diameter of the steel wire rope, the arrangement and combination of the steel wire strands and the requirement that the lay length of the central strand is 7.0-7.2 times of the strand diameter, the lay lengths of the first steel wire strand and the second steel wire strand are 8.3-8.5 times of the strand diameter, the lay length of the outer layer rope is 6.5-6.7 times of the strand diameter, and the lay length of the inner layer rope is 0.49 times of the lay length of the outer layer rope, the diameters of the central strand 1, the first steel wire strand 2 and the second steel wire strand 3 are determined, and the diameters of the central steel wire 1.0, the first steel wire strand 2, the second steel wire strand 3 and the outer layer steel wire 1.1, 2.1 and 3.1 which form each steel wire strand are determined through the diameters of the steel wire strand diameter of the selected and the selected strand compression ratio of the strand. Then, according to the arrangement and combination mode shown in fig. 2, respectively connecting a central steel wire 1.0 and an outer layer steel wire 1.1, a central steel wire 2.0 and an outer layer steel wire 2.1, a central steel wire 3.0 and an outer layer steel wire 3.1 in series with a three-piece type rolling tool through a stranding device to carry out stranding-compaction on-line production, and manufacturing a central strand 1, five first steel wire strands 2 and nine second steel wire strands 3 according to the structure, wherein the steel wires in the strands and the outer layer steel wires are in a surface contact state, and the twisting direction of each strand is left twisting. And finally, reversely twisting the twisted central strand 1, the first steel strand 2 and the second steel strand 3 on a tandem type basket rail rope combining machine in an online manner at one time, wherein the inner layer rope is twisted in the left direction, the outer layer rope is twisted in the right direction, the first steel strand 2 and the second steel strand 3 are both subjected to a preforming process, and are subjected to a post-forming deformation device and a sizing device to prepare the 15-strand rotation-resistant steel wire rope.
The manufacturing method of the 15-strand rotation-resistant steel wire rope comprises the following steps:
step one, drawing wires: drawing the semi-finished steel wire on a linear wire drawing machine to prepare a central steel wire 1.0 and an outer steel wire 1.1 required by a central strand 1; a central steel wire 2.0 and an outer layer steel wire 2.1 required by the first steel strand 2; a central steel wire 3.0 and an outer steel wire 3.1 required by the second strand 3;
step two, stranding: respectively connecting a central yarn 1.0 and six outer layer yarns 1.1, a central yarn 2.0 and six outer layer yarns 2.1, a central yarn 3.0 and six outer layer yarns 3.1 in series with a three-piece type rolling tool through a stranding device to carry out stranding-compaction on-line production, wherein the compressibility is selected to be 13-15%, manufacturing a central strand 1, five first steel wire strands 2 and nine second steel wire strands 3 according to the structure, wherein the steel wires in the strands are in a surface contact state, and the twisting direction of each strand is left-twisted; the twisting pitch of the central strand 1 is 7.0-7.2 times of the strand diameter, and the twisting pitches of the first steel strand 2 and the second steel strand 3 are 8.3-8.5 times of the strand diameter;
step three, rope combination: as shown in fig. 3, the equipment is started, the first hurdle 4 and the second hurdle 5 are opposite in rotation direction, the first hurdle 4 rotates left, the second hurdle 5 rotates right, the speed ratio of the two hurdles is 0.49, the central strand 1 is discharged from the spool 7 on the core releasing frame 6, five first steel strands 2 are discharged from the spool 8 on the first hurdle 4, are gathered in the pressing tile 10 through the pre-former 9 and are folded and formed, then are made into the inner layer rope 12 through the sizing device 11, nine second steel strands 3 are discharged from the spool 13 on the second hurdle 5, are gathered in the pressing tile 15 through the pre-former 14 and the inner layer rope 12 and are folded and formed, and then are made into the 15-strand rotation-resistant steel wire rope 18 through the post-deformation device 16 and the sizing device 17, and then are pulled forward through the traction device 19 and are wound on the take-up spool 22 of the take-up device 21 through the winding device 20.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (7)
1. A15-strand rotation-resistant steel wire rope is characterized by comprising an inner layer rope and an outer layer rope, wherein the twisting direction of the inner layer rope is opposite to that of the outer layer rope, the twisting direction of the inner layer rope is in the same direction, and the twisting direction of the outer layer rope is in alternate twisting;
the inner layer rope comprises a central strand and a first layer of strands twisted outside the central strand, the first layer of strands consists of five first steel strands arranged along the circumferential direction of the central strand, two adjacent first steel strands are in clearance fit, and the twisting directions of the first steel strands and the central strand are the same;
the outer layer rope comprises a second layer rope strand wrapped and twisted on the outer side of the inner layer rope, the second layer rope strand consists of nine second steel wire strands arranged along the circumferential direction of the inner layer rope, two adjacent second steel wire strands are in clearance fit, and the twisting directions of the second steel wire strands and the first steel wire strands are the same.
2. The 15-strand rotation-resistant steel wire rope according to claim 1, wherein the central strand, the first strand and the second strand have the same internal arrangement structure and are each composed of a central steel wire and six outer layer steel wires arranged along the circumferential direction of the central steel wire, and two adjacent outer layer steel wires are in surface contact with each other.
3. The 15-strand rotation-resistant steel wire rope according to claim 2, wherein the directions of twist of the central strand, the first strand and the second strand are all left directions of twist.
4. The 15-strand rotation-resistant steel wire rope according to claim 3, wherein the inner layer rope is twisted in the same direction at the left side, and the outer layer rope is twisted in the alternate direction at the right side.
5. The 15-strand rotation-resistant steel wire rope according to claim 2, wherein the lay length of the central strand is 7.0 to 7.2 times the strand diameter, and the lay lengths of the first strand and the second strand are 8.3 to 8.5 times the strand diameter.
6. The 15-strand rotation-resistant steel wire rope according to claim 1, wherein the lay length of the outer layer rope is 6.5 to 6.7 times the rope diameter, and the lay length of the inner layer rope is 0.49 times the lay length of the outer layer rope.
7. The method for manufacturing the 15-strand rotation-resistant steel wire rope according to claim 1 is characterized by comprising the following steps:
step one, wire drawing: drawing the semi-finished steel wire on a linear wire drawing machine to prepare a finished steel wire;
step two, stranding: the finished steel wire is connected in series with a three-piece type rolling tool through stranding equipment to carry out stranding-compaction on-line production of a central strand, a first steel wire strand and a second steel wire strand, and the strand compression ratio is selected to be 13% -15%;
step three, rope combination: and (3) reversely twisting the twisted central strand, the first steel wire strand and the second steel wire strand on the tandem type basket rail rope doubling machine in an online manner at one time, wherein the first steel wire strand and the second steel wire strand are preformed and pass through a post-deformation device and a sizing device to prepare the 15-strand rotation-resistant steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210848514.7A CN115094657A (en) | 2022-07-19 | 2022-07-19 | 15-strand rotation-resistant steel wire rope and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210848514.7A CN115094657A (en) | 2022-07-19 | 2022-07-19 | 15-strand rotation-resistant steel wire rope and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115094657A true CN115094657A (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210848514.7A Pending CN115094657A (en) | 2022-07-19 | 2022-07-19 | 15-strand rotation-resistant steel wire rope and manufacturing method thereof |
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| CN (1) | CN115094657A (en) |
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- 2022-07-19 CN CN202210848514.7A patent/CN115094657A/en active Pending
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