CN113123150A - Production method of visual deep well rescue steel wire rope - Google Patents
Production method of visual deep well rescue steel wire rope Download PDFInfo
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- CN113123150A CN113123150A CN202110445712.4A CN202110445712A CN113123150A CN 113123150 A CN113123150 A CN 113123150A CN 202110445712 A CN202110445712 A CN 202110445712A CN 113123150 A CN113123150 A CN 113123150A
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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
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
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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
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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
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—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
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1076—Open winding
- D07B2201/108—Cylinder winding, i.e. S/Z or Z/S
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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
- D07B2201/2075—Fillers
- D07B2201/2078—Fillers having a load bearing function
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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
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3025—Steel
- D07B2205/3028—Stainless 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
- D07B2401/2055—Improving load capacity
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2092—Evacuation lines or lifelines
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Abstract
The invention discloses a production method of a visual deep well rescue steel wire rope, which comprises the following steps: twisting the outer layer strand; twisting the central strand; twisting into an inner layer metal strand; twisting a plurality of galvanized steel wires and an optical cable which is externally wound by flat wires containing stainless steel to form a finished optical cable; twisting the filling strand; twisting the inner layer metal strand, the finished optical cable, the filling strand and the central strand into a rope core; the finished optical cable is distributed in the steel wire rope in a spiral line along the extending direction of the steel wire rope; the optical cable finished product is paid off by adopting active magnetic damping in the twisting process, and other steel wire strands are paid off passively; combining each strand with the finished optical cable at one time; the twisting direction of the outer layer strands is opposite to the twisting direction of the rope core. When the steel wire rope is twisted, the paying-off tension of the finished optical cable and the paying-off tension of the steel wire strand are consistent, active magnetic damping paying-off is adopted for the finished optical cable, and the steel wire rope produced by the method has the advantages of high bearing performance and capability of effectively transmitting video signals.
Description
Technical Field
The invention relates to a production method of a steel wire rope, in particular to a production method of a visual deep well rescue steel wire rope.
Background
When a safety accident of coal deep well mining occurs, how to safely, quickly and correctly take rescue measures is a technical problem in the coal industry and the safety industry. However, the steel wire ropes produced by the existing steel wire rope production method cannot meet the characteristics of high bearing performance and effective transmission of video signals, so that the situation in a mine cannot be known in real time during deep well rescue, and the rescue efficiency is greatly reduced.
Disclosure of Invention
In view of the above problems, the present invention provides a method for producing a deep well rescue steel wire rope with safe carrying, long-distance lifting and video communication functions.
In order to achieve the purpose, the invention provides the following technical scheme:
a production method of a visual deep well rescue steel wire rope comprises the following steps:
the first step,
Twisting 1 central steel wire and a plurality of outer steel wires into an outer strand;
twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into a central strand;
twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into an inner layer metal strand;
twisting a plurality of galvanized steel wires and an optical cable which is externally wound by flat wires containing stainless steel to form a finished optical cable;
twisting 1 central steel wire and a plurality of outer steel wires into a filling strand;
the twisting directions of the outer layer strand, the central strand, the inner layer metal strand and the finished optical cable are opposite to those of the steel wire rope and the filling strand;
step two,
Twisting a plurality of inner layer metal strands, at least 1 finished optical cable, a plurality of filling strands and 1 central strand into a rope core; the finished optical cable is distributed in the steel wire rope in a spiral line along the extending direction of the steel wire rope; the finished optical cable is paid off by adopting active magnetic damping in the twisting process, other steel wire strands are paid off passively, and the paying-off tension is consistent; the outer layer strand, the inner layer metal strand, the filling strand, the central strand and the finished optical cable are combined into a rope in one step; the twisting direction of the outer layer strands is opposite to that of the rope core.
Wherein, in the first step,
twisting 1 central steel wire and 6 outer steel wires into an outer strand;
twisting 1 central steel wire, 5 inner and outer steel wires, 5 secondary outer thick wires, 5 secondary outer thin wires and 10 outer filaments into a central strand;
twisting 1 central steel wire, 5 inner and outer steel wires, 5 times of outer thick wires, 5 times of outer thin wires and 10 outer thin wires into an inner metal strand;
twisting the 18 galvanized steel wires and the semi-finished optical cable into a finished optical cable;
the 1 central steel wire and 6 outer steel wires were twisted into a filling strand.
Wherein the content of the first and second substances,
in the outer ply: the diameter of the central steel wire is 1.12mm, the diameter of the outer layer steel wire is 0.96mm, the diameter of the outer layer strand is 2.77mm, and the lay length is 24.0 mm;
in the central strand: the diameter of the central steel wire is 0.53mm, the diameters of the inner and outer layer steel wires are 0.70mm, the diameter of the secondary outer layer thick wire is 0.79mm, the diameter of the secondary outer layer thin wire is 0.61mm, the diameter of the outer layer wire is 1.09mm, the diameter of the central strand is 4.81mm, and the lay length is 31.0 mm;
in the inner layer metal strand: the diameter of the central steel wire is 0.47mm, the diameters of the inner and outer layer steel wires are 0.61mm, the diameter of the secondary outer layer thick wire is 0.70mm, the diameter of the secondary outer layer thin wire is 0.54mm, the diameter of the outer layer wire is 0.98mm, the diameter of the inner layer metal strand is 4.25mm, and the lay length is 36.0 mm;
in the finished optical cable: the diameter of the galvanized steel wire is 0.60mm, the diameter of the semi-finished optical cable is 3.2mm, the diameter of the finished optical cable is 4.25mm, and the lay length is 44.0 mm;
in the filling strand: the diameter of the central steel wire is 0.61mm, the diameter of the outer layer steel wire is 0.49mm, the diameter of the filling strand is 1.46mm, and the lay length is 12.2 mm.
And in the second step, twisting 5 inner layer metal strands, 1 optical cable, 6 filling strands and 1 central strand into a rope core through a twisting trolley.
The optical cable is actively paid off by adopting magnetic damping, and the paying-off tension is 15 kg.
Wherein the diameter of the rope core is 13.1mm, and the lay length is 85.3 mm.
Wherein, in the second step, the paying-off tension of the outer layer strand is 15 kg.
Wherein, after the steel wire rope is twisted into a rope, the diameter of the steel wire rope is 18.40mm, and the lay length is 123.0 mm.
The strand and the optical cable are combined at one time, and the optical cable is distributed in the steel wire rope in a spiral line mode, so that the optical fiber damage caused by elastic extension of the steel wire rope when the steel wire rope is stressed is effectively avoided.
The armored optical cable uses galvanized steel wires to armor the semi-finished optical cable, so that the optical cable can resist the paying-off tension in the production process of the steel wire rope, the optical cable is kept not to be thinned, and the optical cable can resist deformation and extrusion which cannot be avoided in twisting.
The twisting directions of the outer layer strand, the central strand, the inner layer metal strand and the optical cable are opposite to those of the steel wire rope and the filling strand, and the produced steel wire rope has non-rotation performance.
The stainless steel flat wire-containing externally-wound optical cable consists of an optical fiber, a tight sleeve layer, a stainless steel flat wire armor layer, a reinforcement, a PA sheath and a galvanized steel wire armor layer twisted by galvanized steel wires; the inner side of the stainless steel flat wire armor layer is provided with two optical fibers wrapping the tight sheathing layer, and the outer side of the stainless steel flat wire armor layer is wrapped with the reinforcing part and is wrapped by the PA sheath.
Compared with the prior art, the invention has the following beneficial effects:
the steel wire rope produced by the method has high strength, according to GB-T34198 & lt 2017 & gt steel wire ropes for cranes, the minimum breaking tension of 35WxK7-18mm at 1960 level is 258kN, and under the same strength level, the breaking tension of the steel wire rope produced by the method reaches 285kN, so that the rescue safety is ensured; the armored optical cable is arranged in the steel wire rope, so that the real-time communication function can be realized, and the rescue efficiency and safety are improved; the optical cable is positioned at the position of the inner layer strand with relatively small pressure, and meanwhile, the optical cable is prevented from being seriously abraded and extruded due to direct contact with equipment and the environment, so that the optical cable is well protected; the twisting directions of the outer layer strand, the central strand, the inner layer metal strand and the optical cable are opposite to those of the steel wire rope and the filling strand, and the steel wire rope has non-rotation property; the optical cable produced in the invention is based on the fact that the semi-finished optical cable cannot be directly applied to steel wire rope production, and therefore, the galvanized steel wire and the semi-finished optical cable are combined, so that the optical cable can resist the paying-off tension in the steel wire rope production process, the optical cable is kept not to be thinned, and the optical cable can resist deformation and extrusion which cannot be avoided during twisting.
Drawings
FIG. 1 is a flow chart of a production method of the present invention;
fig. 2 is a schematic view of the cross-sectional structure of a steel cord produced by the method of the present invention.
Fig. 3 is a schematic cross-sectional view of a cable in a steel wire rope produced by the method of the present invention.
Fig. 4 is a schematic longitudinal sectional view of the finished optical cable of the present invention.
Fig. 5 is a breaking force detection curve diagram of a steel wire rope produced by the method of the present invention.
In the figure, 1, the center strand; 2. an inner layer of metal strands; 3. finished optical cables; 3.1 an optical fiber; 3.2, a tight sleeve layer; 3.3 stainless steel flat wire armor layer; 3.4 a reinforcement; 3.5PA jacket; 3.6 a galvanized steel wire armor layer; 4. filling the strand; 5. and an outer layer strand.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment provides a production method of a visual deep well rescue steel wire rope as shown in fig. 1, which comprises the following steps:
the first step comprises the following steps:
twisting 1 central steel wire and a plurality of outer steel wires into an outer strand, wherein the twisting direction is left twisting. In this embodiment, 1 central steel wire 1.12mm and 6 outer steel wires 0.96mm are twisted into an outer strand by a twisting machine, the diameter of the outer strand is 2.77mm, the lay length is 24.0mm, and the twist direction is left twist.
Twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into a central strand, wherein the twisting direction is left twisting. In this embodiment, 1 central steel wire is 0.53mm, 5 inner and outer layer steel wires are 0.70mm, 5 secondary outer layer thick wires are 0.79mm, 5 secondary outer layer thin wires are 0.61mm, and 10 outer layer wires are 1.09mm, and are twisted into a central strand through a twisting machine, the diameter of the central strand is 4.81mm, the lay length is 31.0mm, and the twist direction is left twist.
Twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into an inner layer metal strand, wherein the twisting direction is left twisting. In this embodiment, 1 central steel wire is 0.47mm, 5 inner and outer layer steel wires are 0.61mm, 5 secondary outer layer thick wires are 0.70mm, 5 secondary outer layer thin wires are 0.54mm, and 10 outer layer wires are 0.98mm, and are twisted into an inner layer metal strand through a twisting machine, the diameter of the inner layer metal strand is 4.25mm, the lay length is 36.0mm, and the twisting direction is left twisting.
Twisting a plurality of galvanized steel wires and the optical cable which is externally wound by the stainless steel-containing flat wires into a finished optical cable, wherein the twisting direction is left twisting. In this embodiment, a finished optical cable is made by twisting 18 galvanized steel wires of 0.60mm and an optical cable containing stainless steel flat wires of 3.2mm by a twisting machine, wherein the diameter of the optical cable is 4.25mm, the lay length is 44.0mm, and the twist direction is left twist.
Twisting 1 central steel wire and a plurality of outer steel wires into a filling strand, wherein the twisting direction is right twisting. In this embodiment, 1 central steel wire 0.61mm and 6 outer steel wires 0.49mm are twisted into a filling strand by a twisting machine, the diameter of the filling strand is 1.46mm, the lay length is 12.2mm, and the twisting direction is right twist.
And step two, twisting a plurality of inner layer metal strands, at least 1 finished optical cable, a plurality of filling strands and 1 central strand into a rope core, wherein the twisting direction is left twisting. The embodiment specifically comprises the steps that 5 inner-layer metal strands, 1 finished optical cable, 6 filling strands and 1 central strand are twisted into a rope core through a twisting trolley, the finished optical cable is subjected to active magnetic damping paying-off in the twisting process, other steel wire strands are subjected to passive paying-off, the paying-off tension is consistent, the paying-off tension of the central strand is 20kg, the paying-off tension of the inner-layer metal strands is 15kg, the filling strands are 5kg, the optical cable is subjected to magnetic damping active paying-off, the paying-off tension is 15kg, the diameter of the optical cable is 13.1mm, the lay length is 85.3mm, and the twisting direction is left twisting; the finished optical cable is distributed in the steel wire rope in a spiral line along the extending direction of the steel wire rope. The rope core and 16 outer layer strands are twisted into a rope through a twisting vehicle platform, the paying-off tension of the outer layer strands is 15kg, the diameter of the outer layer strands is 18.40mm, the twisting distance is 123.0mm, and the twisting direction is right twisting. The outer layer strand, the inner layer metal strand, the filling strand, the central strand and the finished optical cable are combined into a rope in one step. The twisting direction of the outer layer strands is opposite to the twisting direction of the rope core.
The steel wire rope produced by the method has high strength, according to GB-T34198 & lt 2017 & gt crane steel wire rope, the minimum breaking tension of 35WxK7-18mm in 1960 level is 258kN, and under the same strength level, the breaking tension of the steel wire rope produced by the method reaches 285kN, as shown in figure 5, the rescue safety is ensured. Through mechanical property detection, the actual measured breaking force of the rescue rope is 285kN, the rescue scene is simulated to carry out repeated bending fatigue test, and 8000 times of continuous operation of optical fiber signals still remain unobstructed and undamped under the condition of bearing 6t (about 20 percent of breaking force) load.
The steel wire rope produced by the method is shown in figures 2 and 3, the steel wire rope is of a multi-strand structure and comprises a central strand 1, inner-layer metal strands 2, finished optical cables 3, filling strands 4 and outer-layer strands 5, the central strand 1 is arranged at the center of the steel wire rope, five inner-layer metal strands 2 and one finished optical cable 3 are arranged around the central strand 1, the filling strands 4 are arranged at gaps among the inner-layer metal strands 2, the central strand 1, the inner-layer metal strands 2 and the filling strands 4 form a rope core of the whole steel wire rope, and sixteen outer-layer strands 5 are arranged around the rope core.
As shown in fig. 4, the finished optical cable 3 is composed of an optical fiber 3.1, a tight-buffered layer 3.2, a stainless steel flat wire armor layer 3.3, a reinforcement 3.4, a PA jacket 3.5, and a galvanized steel wire armor layer 3.6, wherein the optical fiber 3.1, the tight-buffered layer 3.2, the stainless steel flat wire armor layer 3.3, the reinforcement 3.4, and the PA jacket 3.5 together constitute an optical cable containing a stainless steel flat wire outer winding. The stainless steel flat wire armor layer is internally provided with two optical fibers wrapping the tight sheathing layer, the outer side of the stainless steel flat wire armor layer is wrapped with the reinforcing part and wrapped with the PA sheath, and the outermost side of the stainless steel flat wire armor layer is protected by the galvanized steel wire armor layer formed by twisting eighteen galvanized steel wires, so that the optical cable can obtain better lateral extrusion resistance and wear resistance. The optical fiber in the optical cable is protected by the double-layer metal armor and the plurality of reinforcing layers, and the optical cable has good extrusion resistance and wear resistance. The metal armor layer adopts stainless steel flat wires and galvanized steel wires, and both have good corrosion resistance, and can deal with severe environmental factors such as humidity, high and low temperature, strong corrosion and the like during coal mine rescue.
The finished optical cable in the steel wire rope is in a spiral line structure, so that the optical fiber is effectively prevented from extending. For example, when the steel wire rope is subjected to a 57kN (20% breaking force) load, the measured elongation of the steel wire rope is 0.28%, and when the steel wire rope is subjected to a 142.5kN (50% breaking force) load, the measured elongation of the steel wire rope is 0.87%, and the elongation of a single optical fiber cannot exceed 1.00%. Therefore, as long as normal use, the steel wire rope can not make inside optic fibre stretched when extending, and the helical structure of finished product optical cable is favorable to protecting optic fibre, can play the effect of the life of extension visual signal deep well rescue wire rope.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A production method of a visual deep well rescue steel wire rope is characterized by comprising the following steps:
the first step,
Twisting 1 central steel wire and a plurality of outer steel wires into an outer strand;
twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into a central strand;
twisting 1 central steel wire, a plurality of inner and outer layer steel wires, a plurality of times of outer layer thick wires, a plurality of times of outer layer thin wires and a plurality of outer layer wires into an inner layer metal strand;
twisting a plurality of galvanized steel wires and an optical cable which is externally wound by flat wires containing stainless steel to form a finished optical cable;
twisting 1 central steel wire and a plurality of outer steel wires into a filling strand;
the twisting directions of the outer layer strand, the central strand, the inner layer metal strand and the finished optical cable are opposite to those of the steel wire rope and the filling strand;
step two,
Twisting a plurality of inner layer metal strands, at least 1 finished optical cable, a plurality of filling strands and 1 central strand into a rope core; the finished optical cable is distributed in the steel wire rope in a spiral line along the extending direction of the steel wire rope; the finished optical cable is paid off by adopting active magnetic damping in the twisting process, other steel wire strands are paid off passively, and the paying-off tension is consistent; the outer layer strand, the inner layer metal strand, the filling strand, the central strand and the finished optical cable are combined into a rope in one step; the twisting direction of the outer layer strands is opposite to that of the rope core.
2. The method for producing a visual deep well rescue steel wire rope according to claim 1, wherein in the first step,
twisting 1 central steel wire and 6 outer steel wires into an outer strand;
twisting 1 central steel wire, 5 inner and outer steel wires, 5 secondary outer thick wires, 5 secondary outer thin wires and 10 outer filaments into a central strand;
twisting 1 central steel wire, 5 inner and outer steel wires, 5 times of outer thick wires, 5 times of outer thin wires and 10 outer thin wires into an inner metal strand;
twisting the 18 galvanized steel wires and the semi-finished optical cable into a finished optical cable;
the 1 central steel wire and 6 outer steel wires were twisted into a filling strand.
3. The method for producing a visual deep well rescue steel wire rope according to claim 2,
in the outer ply: the diameter of the central steel wire is 1.12mm, the diameter of the outer layer steel wire is 0.96mm, the diameter of the outer layer strand is 2.77mm, and the lay length is 24.0 mm;
in the central strand: the diameter of the central steel wire is 0.53mm, the diameters of the inner and outer layer steel wires are 0.70mm, the diameter of the secondary outer layer thick wire is 0.79mm, the diameter of the secondary outer layer thin wire is 0.61mm, the diameter of the outer layer wire is 1.09mm, the diameter of the central strand is 4.81mm, and the lay length is 31.0 mm;
in the inner layer metal strand: the diameter of the central steel wire is 0.47mm, the diameters of the inner and outer layer steel wires are 0.61mm, the diameter of the secondary outer layer thick wire is 0.70mm, the diameter of the secondary outer layer thin wire is 0.54mm, the diameter of the outer layer wire is 0.98mm, the diameter of the inner layer metal strand is 4.25mm, and the lay length is 36.0 mm;
in the finished optical cable: the diameter of the galvanized steel wire is 0.60mm, the diameter of the semi-finished optical cable is 3.2mm, the diameter of the finished optical cable is 4.25mm, and the lay length is 44.0 mm;
in the filling strand: the diameter of the central steel wire is 0.61mm, the diameter of the outer layer steel wire is 0.49mm, the diameter of the filling strand is 1.46mm, and the lay length is 12.2 mm.
4. The method for producing a visual signal deep well rescue steel wire rope according to claim 1, 2 or 3, wherein in the second step, 5 inner layer metal strands, 1 optical cable, 6 filling strands and 1 central strand are twisted into a rope core by a twisting machine, wherein the paying-off tension of the central strand is 20kg, the paying-off tension of the inner layer metal strands is 15kg, the paying-off tension of the filling strands is 5kg, the paying-off tension of the outer layer strands is 15kg, and the optical cable is actively paid off by adopting magnetic damping and the paying-off tension is 15 kg.
5. The method for producing a visual deep well rescue steel wire rope according to claim 4, wherein the diameter of the rope core is 13.1mm, and the lay length is 85.3 mm.
6. The method for producing a visual deep well rescue steel wire rope according to claim 1, wherein in the second step, the diameter of the steel wire rope is 18.40mm and the lay length is 123.0mm after the steel wire rope is twisted into a rope.
7. The method for producing a visual deep well rescue steel wire rope according to claim 1, wherein the optical cable with the stainless steel flat wire wound outside is composed of an optical fiber, a tight sleeve layer, a stainless steel flat wire armor layer, a reinforcement, a PA sheath and a galvanized steel wire armor layer twisted by galvanized steel wires; the inner side of the stainless steel flat wire armor layer is provided with two optical fibers wrapping the tight sheathing layer, and the outer side of the stainless steel flat wire armor layer is wrapped with the reinforcing part and is wrapped by the PA sheath.
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Application publication date: 20210716 |