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EP4097291B1 - Câble et procédé pour produire un câble - Google Patents

Câble et procédé pour produire un câble Download PDF

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Publication number
EP4097291B1
EP4097291B1 EP21802694.6A EP21802694A EP4097291B1 EP 4097291 B1 EP4097291 B1 EP 4097291B1 EP 21802694 A EP21802694 A EP 21802694A EP 4097291 B1 EP4097291 B1 EP 4097291B1
Authority
EP
European Patent Office
Prior art keywords
rope
fiber
cable
laid
strand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21802694.6A
Other languages
German (de)
English (en)
Other versions
EP4097291A1 (fr
EP4097291C0 (fr
Inventor
Thierry VERREET
Markus ZOGG
Marco ELIG
Yeonhwan BAE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kv R&d Center GmbH
Verope Ag
Kiswire Ltd
Original Assignee
Verope Ag
Kv R&d Center GmbH
Kiswire Ltd
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Filing date
Publication date
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Publication of EP4097291A1 publication Critical patent/EP4097291A1/fr
Application granted granted Critical
Publication of EP4097291C0 publication Critical patent/EP4097291C0/fr
Publication of EP4097291B1 publication Critical patent/EP4097291B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/005—Composite ropes, i.e. ropes built-up from fibrous or filamentary material and metal wires
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/007—Making ropes or cables from special materials or of particular form comprising postformed and thereby radially plastically deformed elements
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
    • D07B7/145—Coating or filling-up interstices
    • 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
    • D07B2201/2036—Strands characterised by the use of different wires or filaments
    • 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
    • D07B2201/2042—Strands characterised by a coating
    • D07B2201/2044—Strands characterised by a coating comprising polymers
    • 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
    • D07B2201/2046—Strands comprising fillers
    • 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
    • D07B2201/2065—Cores characterised by their structure comprising a coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2003—Thermoplastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/201—Polyolefins
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2046—Polyamides, e.g. nylons
    • D07B2205/205—Aramides
    • 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
    • D07B2205/3003—Glass
    • 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
    • D07B2205/3007—Carbon
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/404—Heat treating devices; Corresponding methods
    • D07B2207/4059—Heat treating devices; Corresponding methods to soften the filler material
    • 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
    • D07B2401/2015—Killing or avoiding twist
    • 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
    • D07B2401/207—Reducing wear internally
    • 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
    • D07B2401/2085—Adjusting or controlling final twist
    • 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
    • D07B2501/2015—Construction industries
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating

Definitions

  • the invention relates to a laid fiber rope for use as a running rope in a device with a drum drive, which has a laid core rope and a plurality of outer strands surrounding the core rope, wherein the core rope and the plurality of outer strands are formed from a plurality of fiber strands.
  • the invention relates to a method for producing a fiber rope according to the invention and to a device with a drum drive, which has a laid fiber rope according to the invention.
  • a particularly high tensile strength is possible, although the weight of a wire rope is very high.
  • fiber ropes are known from the state of the art, which are used, for example, by sport climbers as safety ropes.
  • Such ropes which are braided ropes, are made of elongated, textile synthetic fibers that are interwoven with a sheath braid that surrounds the synthetic fibers. It is possible to achieve sufficient strength for sports applications at a low weight.
  • Hybrid ropes are also known in which a core rope is formed from a coated plastic monofilament bundle which is stranded with wire strands. Although such a rope has a strength comparable to that of a wire rope, contact between the wire strands and the monofilament bundle, for example in the event of alternating bending loads, can damage the core rope.
  • a rope and a manufacturing process for a rope are known in which fibers or monofilament bundles are first coated with a matrix material before a stranding point at which the fibers or monofilament bundles are stranded to form a core rope and then embedded in the matrix material at the stranding point to form a core rope.
  • a particular disadvantage of this process is that the inner fibers of the monofilament bundle are not surrounded by matrix material.
  • Another disadvantage is that two process steps are required: coating and subsequent embedding.
  • a rope and a fiber strand made of a fiber composite material are known.
  • the fiber strand is made of a mixed yarn, which contains carbon or glass fibers and
  • Plastic fibers produced in a drawing process.
  • the mixed yarn is drawn through inner nozzles of a matrix and a yarn made from the matrix material is drawn through outer nozzles, so that the mixed yarn is surrounded by the matrix material yarn in a so-called "guide".
  • the matrix material yarn fibers fuse together and form the matrix, in which reinforcing fibers of the mixed yarn are then embedded and extend untwisted parallel to one another in the longitudinal direction of the fibers.
  • JP H01 266231 A Also known is a laid rope comprising a core strand and a single outer layer formed from several unstacked fiber strands.
  • WO2008/129116 A1 describes a laid elevator rope comprising a core rope around which several outer layers are laid to form the elevator rope. Individual fiber strands are made of a fiber composite material with parallel reinforcing fibers. Each outer layer is made of several individual, un-twisted fiber strands.
  • Fiber strands and a laid rope are known.
  • Several parallel reinforcing fiber yarns are connected by a thermoplastic material Impregnation bath and a matrix are drawn through and then twisted into a fiber strand.
  • Several fiber strands are twisted into a laid fiber rope, which has a single-strand core rope and an outer layer with six individual, unstranded fiber strands.
  • Another laid rope in which a core rope is surrounded by an outer strand layer, is made of EP 3006 611 A1 Reinforcing fibers embedded in a matrix run parallel to each other and are therefore not twisted or twisted.
  • wire ropes have a high breaking strength and are also heavy
  • hybrid ropes in particular are lighter, but when wound in multiple layers, for example on a rope drum, they are less resistant to bending fatigue and less stable to transverse pressure.
  • the present invention is based on the object of designing a laid fiber rope of the type mentioned at the beginning that is particularly durable and in particular resistant to bending fatigue and transverse pressure. Furthermore, the invention is based on the object of designing a laid fiber rope of the type mentioned at the beginning that has a particularly high tensile strength with a low weight.
  • the object is achieved in that the fiber strands are formed from a composite material comprising non-metallic reinforcing fibers, the non-metallic reinforcing fibers of which are beaten into at least one reinforcing strand, wherein the reinforcing strand is designed in the manner of a reinforcing strand or a reinforcing rope and is produced by a device for producing wire ropes or wire strands. wherein the laid core rope is at least partially surrounded by a sheath.
  • the at least one fiber strand is formed from a composite material in which beaten reinforcing fibers are embedded in a matrix, it is advantageously possible to use fibers that were previously unusable for high-strength ropes, in particular non-metallic fibers such as carbon fibers.
  • Reinforcing fibres twisted into a reinforcing strand are designed in the manner of a strand or a twisted rope and can be produced using twisting or stranding machines known from wire rope technology.
  • adjacent layers of several reinforcement fiber layers in the radial direction can have an opposite lay direction.
  • a low-twist reinforcement strand is advantageously formed.
  • a fiber strand is created that is resistant to bending fatigue and particularly stable to transverse pressure, which forms the basis for the production of laid core ropes or strands, from which laid ropes can be made.
  • a rope or strand is created whose individual components, i.e. the fiber strands, are already very resistant to bending fatigue and particularly stable to transverse pressure.
  • reinforcing fibers may be in the form of yarn, individual filaments, twisted yarn or bundles of several substantially parallel filaments.
  • the reinforcing fibers have different cross-sections.
  • the fiber strands can have a round or polygonal, for example trapezoidal, cross-section.
  • a fiber strand which is stranded with other fiber strands and/or metal wires to form a strand, for example a core or outer strand, has in particular a diameter of 0.5 to 2 mm, preferably between 1 and 1.5 mm.
  • a fiber strand which is stranded with other fiber strands to form a core rope has in particular a diameter of 0.5 to 2 mm, preferably between 1 and 1.5 mm. It is conceivable that the outer strands or the core rope have a diameter of up to 100 mm, in particular between 15 and 60 mm, preferably between 20 and 40 mm.
  • the at least one reinforcing strand is expediently formed from non-metallic reinforcing fibers and is produced by a device for producing wire ropes or wire strands.
  • Suitable reinforcing fibers can be formed, for example, as glass fibers, mineral fibers, aramid fibers, textile fibers or carbon fibers or can comprise a combination of high-strength metallic or non-metallic filaments. It is conceivable that reinforcing fibers of the at least one reinforcing strand are formed from different materials. For example, part of the reinforcing fibers can be formed from carbon, while another part is formed from aramid.
  • the at least one reinforcement strand is designed as a reinforcing strand or reinforcing rope.
  • Existing stranding or twisting machines known from wire rope technology can advantageously be used to produce the reinforcement strand.
  • Both the reinforcing rope and the reinforcing strand can be designed in multiple layers and have cross-sectional geometries known from wire ropes.
  • the at least one reinforcing strand can be formed from a mixed yarn comprising reinforcing fiber filaments and filaments of a material from which a matrix is formed into which the at least one reinforcing strand is embedded to form the fiber strand.
  • thermoplastics such as polyethylene (PE), polypropylene (PP), polyamide (PA), polycarbonate (PC) or polyetheretherketone (PEEK).
  • a blended yarn is a yarn whose filaments are made of reinforcing fiber filaments and, in particular, thermoplastic filaments.
  • no impregnation is required to form a plastic matrix in which the reinforcing strand is embedded; instead, so-called pultrusion with heating is sufficient.
  • a particularly dense and homogeneous matrix can be formed, and air inclusions are advantageously avoided.
  • the laid core rope is at least partially surrounded by a sheath.
  • the sheath is made of the same material as the matrix of the at least one fiber strand forming the at least one core strand or the core rope.
  • fiber strands that can be stranded to form a strand or twisted to form a laid core rope or twisted rope have a matrix that in cross-section comprises, for example, an annular outer region and an inner region, with the at least one reinforcing strand being introduced only into the inner region of the matrix.
  • the outer region can be deformed, preferably by heating the fiber strands to a temperature at which a thermoplastic material forming the matrix is deformable, in such a way that outer regions of adjacent fiber strands form a one-piece sheathing during twisting or twisting, which is made of the same material as the matrix.
  • the at least one core strand or the core rope is advantageously protected from abrasion by outer strands or weather influences.
  • the casing is made of a material which has a coefficient of friction of ⁇ 0.15.
  • the laid rope has several outer strands surrounding the core rope, whereby the laid core rope and the outer strands are made of several fiber strands and each fiber strand is made of a composite material with at least one reinforcement strand.
  • a particularly good fatigue strength under bending is advantageously achieved with a low weight and excellent transverse pressure stability.
  • a proportion of the at least one reinforcement strand in the at least one fiber strand is at least 40 vol.%, in particular between 45 vol.% and 90 vol.%, preferably between 50 and 75 vol.%.
  • a strength can be tailored to different applications.
  • the laid core rope and the several outer strands surrounding the core rope are expediently movable relative to each other, preferably in the longitudinal direction of the rope. Particularly under load, for example when the rope is used as a load rope for a tower crane, relative mobility is required in order to achieve particularly good mechanical strength. Neighbouring outer strands and/or the laid core rope directly Surrounding outer strands can lie against each other to form a separating plane. This advantageously creates a particularly bend-resistant, bend-resistant and transverse-pressure-stable laid rope or strand.
  • a rope according to the invention is used as a running rope of a device with a drum drive, in particular in a crane with a drum drive.
  • each fiber strand is covered with a layer having a coefficient of friction that is in particular less than 0.2, preferably less than 0.14.
  • the sheathing which at least partially surrounds the laid core rope is made of a different material than a matrix of the at least one fiber strand in which the at least one reinforcement strand is embedded.
  • the rope is designed as a low-twist or non-twist rope. This advantageously creates a rope that is particularly durable.
  • the laid rope expediently has a plurality of outer strands surrounding the laid core rope, wherein the laid core rope and the outer strands are formed from a plurality of fiber strands and each fiber strand is formed from a composite material having at least one reinforcement strand, wherein the fiber strands of the laid core rope or the outer strands have different shapes and/or sizes from one another.
  • Mechanical properties such as fatigue strength, transverse pressure stability or tensile strength can advantageously be tailored to specific customer-specific cases.
  • the invention is further based on the object of providing a method for producing a laid fiber rope for use as a running rope in a device with a drum drive, which has at least one laid core rope and a plurality of outer strands surrounding the core rope, wherein the core rope and the plurality of outer strands are formed from a plurality of fiber strands.
  • the object is achieved in that the plurality of fiber strands are formed from a composite material comprising reinforcing fibers, wherein the reinforcing fibers are beaten into at least one reinforcing strand, wherein the reinforcing strand is designed in the manner of a reinforcing strand or a reinforcing rope and is produced by a device for producing wire ropes or wire strands, and the laid core rope is at least partially surrounded by a sheath.
  • Several strands of a mixed yarn comprising reinforcing fiber filaments and filaments formed from a preferably thermoplastic material can be beaten and pultruded while heated to form the fiber strand.
  • Pultrusion ensures that no defects, such as air inclusions, occur during the production of the fiber strands. Another advantage is that no coating of the yarn is required before stranding or twisting, since the matrix material is woven into the filaments of the mixed yarn and the matrix is formed during pultrusion.
  • a pultrusion device can be connected upstream of a first stranding and/or twisting device and downstream of a further stranding or twisting device.
  • the reinforcing fibers can be unwound from several spools and twisted to form the reinforcing strand using a first, existing twisting or stranding machine.
  • a mixed yarn is used, i.e. a yarn whose filaments are made of reinforcing fiber filaments and, in particular, thermoplastic filaments.
  • pultrusion takes place, i.e. drawing while being heated, whereby the plastic filaments form a homogeneous matrix in which the twisted reinforcing fibers are embedded.
  • Fiber strands produced in this way which preferably have a round cross-section, can be twisted into a strand, a rope or a core rope using an existing twisting or stranding machine downstream of the pultrusion device.
  • Another advantage is that an existing device that can be used to produce wire ropes only needs to be supplemented with a pultrusion device in order to be able to produce a laid rope or a strand according to the invention. The purchase of additional or special machines is not necessary.
  • the core rope is surrounded by at least one outer strand layer, which has the multiple outer strands, wherein preferably a matrix material of a matrix of the core rope rests against a matrix material of the outer strands. Direct contact between reinforcing fibers of one fiber strand and those of an adjacent fiber strand is advantageously prevented. Because the core rope only rests against the outer strands, there is no material connection.
  • the core rope or an outer strand is made up of up to fifty fiber strands and that up to ten outer strand layers are provided that surround the core strand.
  • the laid rope 1 shown schematically in cross-section comprises a laid core rope 2 which has a core strand 3 and an outer core strand layer 4.
  • Outer core strands 5, 6 of the outer core strand layer 4 have different, in particular mutually different, cross-sectional sizes and shapes.
  • the core rope 2 is stranded with a total of eight outer strands 7, which form a single outer strand layer 8, to form the rope 1.
  • a Fig. 1a Rope 1 shown is rotation-resistant.
  • FIG. 1b in detail schematically shown round outer strand 7 of a rope 1 according to Fig. 1a
  • Thirty-one fiber strands 9, 10 were stranded, with twelve fiber strands 9 being of equal size in cross-section and larger than the other nineteen fiber strands 10, which are approximately equal in cross-section.
  • the fiber strands 10 are inner fiber strands of a core rope 2 or a strand 5, 6, 7
  • the fiber strands 9 are outer fiber strands of a core rope 2 or a strand 5, 6, 7.
  • Each fiber strand 9, 10 comprises a reinforcing strand 11 extending in a fiber strand longitudinal direction, which has a plurality of reinforcing fibers 12 made of carbon which are formed into a reinforcing strand and embedded in a polypropylene matrix 13.
  • Fig. 1b not all fiber strands 9, 10 reinforcing strands 11 and reinforcing fibers 12 are shown.
  • rope 1 all strands of a Fig. 1a shown rope 1 are formed from fiber strands 9, 10 with exclusively non-metallic reinforcing fibers 12, it is conceivable that individual reinforcing fibers 12 are formed from a metal wire.
  • a strand having such a fiber strand is a so-called hybrid strand
  • a rope having such a fiber strand is a so-called hybrid rope.
  • the fiber strands 9, 10 can be produced by means of pultrusion, in which a mixed yarn comprising reinforcing fibers 12, which comprises filaments made of polypropylene and carbon, for example, is unwound from several yarn spools and twisted in a first stranding or twisting machine.
  • a mixed yarn comprising reinforcing fibers 12 which comprises filaments made of polypropylene and carbon, for example, is unwound from several yarn spools and twisted in a first stranding or twisting machine.
  • pultrusion i.e. under tension
  • the polypropylene filaments soften when heated and form a homogeneous matrix 13 in which the reinforcing fibers 12 twisted into a reinforcing strand 11 are embedded.
  • the fiber strands 9, 10 can be further processed with the second stranding or twisting machine, which is connected downstream of the pultrusion device.
  • Winding onto storage spools before further processing is conceivable.
  • a heating device can be provided which is arranged in front of or at a stranding or twisting point of a corresponding stranding or twisting device.
  • FIG. 1c The laid rope 1 shown schematically in cross-section differs from the one in Fig. 1a shown in that a laid core rope 2 has a core strand 3 and two outer core strand layers 4, 14, of which the outermost core strand layer 14 has outer core strands 5, 6 which have different diameters from one another.
  • the core strand 3 is formed from seven fiber strands 9, 10 with a round cross-section, while outer strands 7 with a round cross-section are formed from seven fiber strands 9, 10 with a polygonal cross-section.
  • FIG. 2a A in Fig. 2a
  • the laid rope 1a shown schematically in cross-section differs from those in Fig. 1 shown in that a core rope 2a is surrounded by a sheath 15 shown in hatched form, in which halves 16 of outer strands 7a facing the core rope 2a are embedded.
  • the sheath 15 protects the core outer strands 5a from damage.
  • the sheath 15 can be formed by stranding the core rope 2a with the outer strands 7a in a plastic bath which contains molten plastic forming the sheath, preferably a thermoplastic plastic such as polypropylene (PP) or polyethylene (PE).
  • a thermoplastic plastic such as polypropylene (PP) or polyethylene (PE).
  • the core rope 2a has a core strand 3a and a single outer core strand layer 4a.
  • the core strand 3a and the core outer strands 5a have identical cross-sections.
  • FIG. 2b A in Fig. 2b
  • the laid rope 1a shown in cross section differs from the one in Fig. 2a shown in that outer strands 7a are flattened on a side 17 facing away from the core rope 2a. This is possible, for example, by hammering, with or without prior heating.
  • FIG. 3a The laid rope 1b shown in cross section differs from those in Fig. 1 and 2 shown in particular in that a core rope 2b and outer strands 7b are introduced into a single polypropylene matrix 18 acting as a sheath in such a way that both a core strand 3b and core outer strands 5b as well as halves 16b of the outer strands 7b facing the core rope 2b are embedded in the matrix 18 acting as a sheath.
  • the matrix material of the matrix 18 can be different from the matrix material that the fiber strands 9b, 10b have.
  • the Fig. 3a The laid rope 1b shown can be produced by stranding or twisting fiber strands 9b, 10b in a molten polypropylene bath.
  • the laid rope 1b is produced by strands of fibre 9b, 10b which have a cross-section Fig. 3 not shown annular outer and an inner area of a Fig. 1b with 13 designated matrix, wherein a reinforcing strand is introduced only in the inner region, are stranded or twisted.
  • the outer region can be deformed during the stranding or twisting of the fiber strands, preferably by heating to a temperature at which a thermoplastic material forming a matrix is deformable, such that the outer regions form the matrix 18 acting as a sheath during the stranding or twisting of adjacent fiber strands 9b, 10b.
  • FIG. 3b A in Fig. 3b
  • the laid rope 1b shown in cross section differs from the one in Fig. 3a shown in particular in that outer strands 7b are flattened on a side 17b facing away from the core rope 2b, wherein the flattened areas form circular arcs.
  • Ropes 1-1b with a single outer strand layer 8-8b are shown, it is conceivable that several outer strand layers are provided. Preferably, adjacent The outer strand layers have opposite lay directions so that a rotation-resistant or rotation-free rope is formed.
  • reinforcing fibers are used which are made of different materials and/or have different cross-sectional sizes. This is particularly possible when using a mixed yarn which is unwound from several yarn spools to produce a fiber strand 9-9b, 10-10b.
  • each fiber strand 9-9b, 10-10b has more than one reinforcing strand 11, for example two or three, which preferably extend parallel to one another in the longitudinal direction of the rope.

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  • Ropes Or Cables (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)

Claims (7)

  1. Câble de fibres battues (1-1b) destiné à être utilisé comme câble mobile dans un dispositif à entraînement par tambour, comprenant un câble central (2-2b) battu et une pluralité de torons extérieurs entourant le câble central (2-2b), le câble central et la pluralité de torons extérieurs (7-7b) étant formés d'une pluralité de brins de fibres, les brins de fibres (9-9b, 10-10b) étant formés d'un matériau composite comprenant des fibres (9-9b, 10-10b) de renforcement non métalliques, dont les fibres de renforcement (12) non métalliques sont battues pour former au moins un brin de renforcement (12), le brin de renforcement (11) étant réalisé à la manière d'un toron de renforcement ou d'un câble de renforcement et étant fabriqué par un dispositif de fabrication de câbles métalliques ou de torons métalliques,
    caractérisé en ce que le câble central (2-2b) battu est entouré au moins partiellement par une gaine (15; 18).
  2. Câble de fibres battues selon la revendication 1,
    caractérisé en ce
    qu'une proportion dudit au moins un brin de renforcement (11) dans le câble de fibres (9-9b, 10-10b) est d'au moins 40 % en volume, en particulier entre 45 et 90 % en volume, de préférence entre 50 et 75 % en volume.
  3. Câble de fibres battues selon la revendication 1 ou 2,
    caractérisé en ce que
    le câble central battu (2-2b) et la pluralité de torons extérieurs (7-7b) entourant le câble central (2-2b) sont mobiles les uns par rapport aux autres, de préférence dans la direction longitudinale du câble.
  4. Câble de fibres battues selon l'une des revendications 1 à 3, caractérisé en ce que
    la gaine (15, 16) qui entoure au moins partiellement le câble central battu (2-2b) est formée d'un matériau différent de celui d'une matrice (13) de brins de fibres (9-9b, 10-10b), dans laquelle le au moins un brin de renforcement (11) est noyé.
  5. Câble de fibres battues selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le câble (1-1b) est conçu comme un câble antigiratoire.
  6. Dispositif avec un entraînement de tambour, en particulier grue avec un entraînement de tambour, qui présente un câble de fibres (1-1b) battu selon l'une des revendications 1 à 5, dans lequel le câble de fibres (1-1b) battu est conçu comme un câble courant.
  7. Procédé de fabrication d'un câble de fibres (1-1b) battues destiné à être utilisé comme câble courant dans un appareil à entraînement par tambour, comprenant un câble central (2-2b) battu et une pluralité de torons extérieurs (7-7b) entourant le câble central (2-2b), le câble central (2-2b) et la pluralité de torons extérieurs étant formés d'une pluralité de brins de fibres (9-9b, 10-10b), la pluralité de brins de fibres (9-9b, 10-10b) étant formée d'un matériau composite comprenant des fibres de renforcement (11), dans lequel les fibres de renforcement (12) sont battues pour former au moins un brin de renforcement (11), le brin de renforcement étant réalisé sous la forme d'un toron de renforcement ou d'un câble de renforcement et étant fabriqué par un dispositif de fabrication de câbles métalliques ou de torons métalliques,
    caractérisé en ce que
    le câble central (2-2b) battu est entouré au moins partiellement par une gaine (15; 18).
EP21802694.6A 2020-11-02 2021-11-02 Câble et procédé pour produire un câble Active EP4097291B1 (fr)

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LU102175 2020-11-02
PCT/EP2021/080339 WO2022090565A1 (fr) 2020-11-02 2021-11-02 Câble, toron et procédé et dispositif pour produire un câble et un toron

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US12529186B2 (en) 2026-01-20
CN117136262A (zh) 2023-11-28
KR20230095116A (ko) 2023-06-28
WO2022090565A1 (fr) 2022-05-05
EP4097291A1 (fr) 2022-12-07
US20230407561A1 (en) 2023-12-21
EP4097291C0 (fr) 2024-11-13

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