EP4587637B1 - Câble métallique antigiratoire, son procédé de production et dispositif de levage comprenant un entraînement de tambour - Google Patents

Câble métallique antigiratoire, son procédé de production et dispositif de levage comprenant un entraînement de tambour

Info

Publication number
EP4587637B1
EP4587637B1 EP24783282.7A EP24783282A EP4587637B1 EP 4587637 B1 EP4587637 B1 EP 4587637B1 EP 24783282 A EP24783282 A EP 24783282A EP 4587637 B1 EP4587637 B1 EP 4587637B1
Authority
EP
European Patent Office
Prior art keywords
rope
core
core rope
wire rope
strands
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
EP24783282.7A
Other languages
German (de)
English (en)
Other versions
EP4587637C0 (fr
EP4587637A1 (fr
Inventor
Marco ELIG
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.)
Verope Ag
Kv R&d Center GmbH
Kiswire Ltd
Original Assignee
Verope Ag
Kv R&d Center GmbH
Kiswire Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Verope Ag, Kv R&d Center GmbH, Kiswire Ltd filed Critical Verope Ag
Publication of EP4587637A1 publication Critical patent/EP4587637A1/fr
Application granted granted Critical
Publication of EP4587637B1 publication Critical patent/EP4587637B1/fr
Publication of EP4587637C0 publication Critical patent/EP4587637C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—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
    • 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
    • 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
    • D07B2201/2062—Cores characterised by their structure comprising wires 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
    • D07B2201/2071—Spacers
    • D07B2201/2074—Spacers in radial direction
    • 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
    • D07B2401/2085—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
    • D07B5/007—Making ropes or cables from special materials or of particular form comprising postformed and thereby radially plastically deformed elements

Definitions

  • the invention relates to a non-rotating wire rope, in particular a non-rotating round stranded rope, which has a core rope and outer strands surrounding the core rope, forming a single outer strand layer.
  • the invention relates to a method for manufacturing a rotation-free wire rope and a lifting device with a drum drive, which has a rotation-free wire rope according to the invention, wherein this rope is designed as a running rope.
  • Rotation-resistant wire ropes are made of DE 39 37 588 A1 , CH 545881 A , DE 29 49 754 C2 and "Special Wire Ropes // Spezialdrahtseile / The Premium Line" (on 25.09.2024) (available at https://www.casar.de/Portals/0/Documents/Product-Specs/powerplast.pdf).
  • Each of these known wire ropes has a core rope that is completely embedded in a plastic matrix, meaning its core strands are completely surrounded by the plastic of the matrix.
  • the invention is based on the objective of creating a particularly stable, rotation-free wire rope of the type mentioned above with a long service life.
  • the invention is based on the objective of creating a device with a drum drive that requires particularly little maintenance.
  • the problem is solved by the core rope comprising several core rope inner strands which are embedded in a plastic matrix and which are surrounded by core rope outer strands which form a core rope outer strand layer.
  • core rope inner strands are fully embedded in the plastic matrix in one circumferential direction, they do not lie directly against each other and are therefore movable relative to each other when a rotation-free wire rope according to the invention is under load, for example when used as a running wire rope in a device with a drum drive such as a crane.
  • relative movement of adjacent core rope inner strands can occur under load in both a longitudinal and a circumferential direction.
  • the inventor has determined that by using a core rope of the aforementioned design, a twist-free wire rope with a particularly high actual breaking strength F ⁇ sub> m ⁇ /sub> is created despite a relatively low core rope fill factor.
  • a wire rope is more break-resistant the larger its fill factor.
  • the fill factor is the ratio of the cross-sectional area of all wires forming the wire rope to the total cross-sectional area of the wire rope.
  • a fill factor of 0.70 means that 70% of the wire rope cross-section consists of the wires forming the wire rope.
  • a wire rope according to the invention with a core rope of the type mentioned has a higher actual breaking strength F m than a wire rope of the same design with a higher core rope filling factor, despite a lower core rope filling factor.
  • the actual breaking force F m is a general term known to those skilled in the art for a wire rope property and can be determined according to DIN EN 12385-3 (version: 01/2009), section 6.4).
  • Wire ropes are classified into so-called rope strength classes, where a rope strength class represents ropes with a specific actual breaking strength F ⁇ sub> m ⁇ /sub>.
  • a rope strength class represents ropes with a specific actual breaking strength F ⁇ sub> m ⁇ /sub>.
  • the wires forming the wire rope must reach certain tensile strengths known from standards. Since wires with high tensile strength are brittle, wire ropes with a high actual breaking strength F ⁇ sub> m ⁇ /sub> are typically not very resistant to flexural fatigue.
  • a rotation-free wire rope according to the invention with a core rope of the type mentioned, has a higher actual breaking strength F ⁇ sub> m ⁇ /sub> than a comparable rotation-free wire rope with a core rope known from the prior art
  • the wire rope according to the invention can be manufactured using wires with lower tensile strength, while still achieving the required higher rope strength class.
  • Such wires with lower tensile strength are less brittle, so that a rotation-free wire rope according to the invention is created with particularly good flexural fatigue strength and simultaneously a high actual breaking strength F ⁇ sub> m ⁇ /sub>.
  • Elastomers or thermoplastics are particularly suitable as plastics for forming the plastic matrix, especially polyethylene (PE) or polypropylene (PP).
  • a simple, durable wire rope is created, which is particularly suitable for use as a running wire rope in a device with a drum drive.
  • the core rope outer strands which are only partially embedded in the plastic matrix, lie directly against the outer strands with the core rope outer strand areas facing away from the core rope inner strands.
  • outer core strand areas facing the inner core strands are surrounded by plastic, they are movable in a longitudinal direction relative to the inner core strands and do not lie directly against each other.
  • the outer strands of the core rope are only inserted into the plastic matrix with the areas of the outer strands facing the inner strands of the core rope, and the outer strands of the core rope facing away from the inner strands of the core rope are not inserted into the plastic matrix.
  • Partial embedding in the polymer matrix ensures that the core rope outer strands are movable relative to the core rope inner strands. At the same time, the outer strands lie directly against the core rope outer strands.
  • the inventor has surprisingly discovered that embedding all the core rope strands in a plastic matrix is not necessary to achieve improved properties. Furthermore, this results in a twist-free rope that requires less plastic to manufacture.
  • adjacent core rope outer strands are separated from each other by the plastic matrix, which extends from the core rope inner strands in the radial direction of the wire rope to the core rope outer strands, wherein the plastic matrix extends in the radial direction of the core rope only to the extent that core rope outer strand areas facing away from the core rope inner strands are not incorporated into the plastic matrix.
  • core rope strands adjacent to each other in the radial or circumferential direction are not in direct contact with one another. Particularly good relative mobility of the core rope strands to each other is ensured, even though the outer core rope strands are only partially embedded in the polymer matrix in their circumferential direction.
  • the core rope is compacted.
  • a compacted core rope differs from a core rope made from compacted strands in that the compaction takes place after the core rope has been manufactured. Compaction occurs before an outer strand layer is applied to the core rope.
  • the core rope is hammered. Other compaction methods are conceivable.
  • Compacting the core rope also creates a flat and smooth core rope surface.
  • An outer strand layer, which is applied to the core rope to form the wire rope, can, for example, be applied directly to this flat and smooth surface. Damage caused by individual wires of the core rope outer strands touching the outer strands of the non-rotating wire rope can be advantageously prevented.
  • a further advantage is that the outer strands of the wire rope are movable relative to the core rope; that is, they can slide along the flat and smooth surface of the core rope when the wire rope is under load. This prevents stress conditions that could damage the wires.
  • core rope strands in particular inner and/or outer core rope strands, may already be compacted.
  • Each of the strands forming the core rope can be compacted before being stranded together to form the core rope, and the core rope itself can be further compacted after its manufacture.
  • the outer strands are applied directly to the core rope.
  • break-resistant and fatigue-resistant wire ropes for use as running wire ropes can only be created if friction between wires of adjacent strands is largely prevented. This can be achieved, for example, by a plastic layer between the core rope and the outer strand layer. However, according to the invention, this is not necessary; rather, the outer strand layer can be applied directly to the core rope in such a way that, in the radial direction, adjacent wires of core rope outer strands and outer wires of outer strands are in direct contact with each other.
  • the wire rope has a covering, preferably made of a plastic, between the core rope and the outer strand layer, which has no connection to the plastic matrix.
  • the sheath surrounds the core rope in the manner of a casing, which can be produced in particular by an additional process step, and into which the core rope is inserted.
  • connection means that a clear separation is possible between the plastic surrounding the core rope's inner strands and the plastic sheath, which has no connection to the plastic matrix. This is made possible, in particular, by a separation plane formed between the plastic matrix and the plastic sheath. This separation plane creates a sliding plane that allows the outer strands to move relative to the core rope in a longitudinal direction.
  • Such a covering further improves the relative mobility of the core rope to the outer strand layer, making such a rotation-free wire rope according to the invention particularly durable, even under high loads, for example, winding and unwinding from a wire rope drum.
  • the plastic matrix surrounding the inner strands of the core rope is made of a different plastic than the plastic sheathing of the core rope.
  • the outer strands of the core rope are embedded in the plastic matrix with the core rope outer strand areas facing the inner strands, and the outer strand areas facing away from the inner strands are inserted into a covering made of a plastic material, arranged between the core rope and the outer strand layer, wherein the covering has no connection to the plastic matrix and completely surrounds the core rope in a circumferential direction.
  • the sheath surrounding the core rope which in particular has no connection to the plastic matrix, forms a separation plane, thereby creating a sliding plane that allows relative movement of the outer strands to the core rope in a longitudinal direction.
  • a particularly durable, especially bend-resistant, wire rope is created, which is especially suitable for use as a running wire rope.
  • the core rope is expediently a parallel-laid rope.
  • core outer strands of a core rope are arranged between circumferentially adjacent outer strands of a first outer strand layer due to the manufacturing process.
  • a core rope with a 1+8+8 construction results in a particularly break-resistant and flexurally resistant, rotation-free wire rope whose mechanical properties are between 30% and 60% better than those of known rotation-free wire ropes.
  • a core rope with a 1+8+8 construction is a wire rope in which the core rope has eight inner core rope strands (first "+8") surrounding an innermost core rope strand ("1"), which are in turn surrounded by eight outer core rope strands (second "+8").
  • the rotation-free wire rope has an actual breaking force F m that is between 3% and 45% higher than the actual breaking force F m of a wire rope of the same type in which the core rope inner strands are not embedded in a plastic matrix.
  • a wire rope of the same construction means that the two ropes being compared have a core rope of the same construction and an outer layer of the same construction. It is understood that the rope diameter is also the same.
  • the actual breaking force F m of a wire rope increases or decreases linearly with its wire rope cross-sectional area, whereby this relationship applies in particular to a nominal wire rope diameter between 10 mm and 60 mm.
  • the inventor has surprisingly discovered that the actual breaking strength F m can be increased by the aforementioned values compared to a comparable wire rope without core rope inner strands embedded in a plastic matrix, provided that only the core rope inner strands are completely embedded in the plastic matrix.
  • an actual breaking strength F ⁇ sub>m1 ⁇ /sub> is determined for a first wire rope D ⁇ sub>1 ⁇ /sub> with a diameter d and no core strands embedded in a plastic matrix. This value represents 100% of the actual breaking strength F ⁇ sub> m1 ⁇ /sub> of the first wire rope D ⁇ sub> 1 ⁇ /sub> and serves as a reference value.
  • an actual breaking strength F ⁇ sub>m2 ⁇ /sub> is determined for a second wire rope D ⁇ sub> 2 ⁇ /sub> with a diameter d, and this wire rope D ⁇ sub> 2 ⁇ /sub> has core strands embedded in a plastic matrix.
  • the actual breaking strength F ⁇ sub>m2 ⁇ /sub> of the second rope D ⁇ sub>2 ⁇ /sub> is then compared to the actual breaking strength F ⁇ sub>m1 ⁇ /sub> of the first rope D ⁇ sub> 1 ⁇ /sub>. This ratio is the relative actual breaking strength.
  • the ratio F m2 /F m1 is between 1.03 and 1.45.
  • the wire rope at a nominal tensile stress ⁇ z of 127 N/ mm2 +/- 10 N/ mm2, has a service life in bending cycles that is between 3% and 40% higher than that of a wire rope of the same design in which the core rope inner strands are not embedded in a plastic matrix.
  • the nominal tensile stress ⁇ Z also known as rope tensile stress, is defined as a rope tensile force S divided by a metallic cross-section, i.e., the sum of the cross-sections of all wires forming the wire rope ( Source: FEYRER: Wire Ropes, K. Feyrer, K.-H. Wehking, 3rd edition, SpringerVieweg, 2018, ISBN: 978-3-642-54295-4, p. 71 ).
  • Service life is defined as the number of bending cycles until a wire rope breaks.
  • the so-called 100% discard criterion is the number of bending cycles a wire rope can withstand before its safe continued use is no longer possible. Once the discard criterion is reached, the wire rope must be replaced.
  • the flexural fatigue strength is evaluated in accordance with DIN ISO 4309 (version: 06/2013).
  • the inventor has surprisingly discovered that the service life and a certain degree of discard maturity can be increased by core rope inner strands embedded in a plastic matrix, wherein only the core rope inner strands are completely embedded in the plastic matrix, compared to a wire rope of the same design without core rope inner strands embedded in a plastic matrix.
  • the discard maturity A and the service life L1 are calculated using the aforementioned test for a first wire rope D with a diameter d without in a matrix embedded core rope inner strands are determined, whereby these determined values for the discard maturity A 1 and the service life L 1 of the first wire rope D 1 each correspond to 100% and are each a reference value.
  • the discard criteria A2 and the service life L2 are determined for a second wire rope D2 with a diameter d using the aforementioned test, wherein this wire rope D2 has core strands embedded in a plastic matrix.
  • the values for the discard criteria A2 and the service life L2 of the wire rope D2 are then compared to the respective values for the discard criteria A1 and the service life L1 of the first rope D1 .
  • These ratios correspond to the relative service life and the relative discard criteria.
  • the ratio L2 / L1 is between 1.03 and 1.40.
  • the discard maturity A 1 , A 2 can be 100% discard maturity, or a lower degree of discard maturity.
  • the non-rotating wire rope has an actual breaking force F m that is between 15% and 50% higher than the actual breaking force F m of a wire rope of the same type whose core rope is not compacted.
  • the non-rotating wire rope has a service life L and/or a discard maturity A at a nominal tensile stress ⁇ Z of 127 N/mm 2 +/- 10 N/mm 2 which is between 3% and 45% higher than the service life L and/or discard maturity A of a wire rope of the same type whose core rope is not compacted.
  • the inventor has determined that a compression of the core rope results in an increase in service life L and discard maturity A.
  • the core rope inner strands and the core rope outer strands are designed as complete strands, in which no wire is omitted to create a cavity for receiving the plastic forming the plastic matrix.
  • a wire rope with high fatigue strength is created, which also has a particularly high fill factor compared to rotation-free wire ropes known from the prior art.
  • a method for producing a rotation-free wire rope in which a first core rope inner strand is surrounded with a plastic sheathing and is stranded at a stranding point of a stranding device with further core rope inner strands and core rope outer strands to form a core rope in such a way that only the core rope inner strands are introduced into a plastic matrix, is characterized in that outer strands are stranded with the core rope to form the rotation-free wire rope.
  • the plastic sheathing is designed such that the subsequent inner strands of the core rope are completely embedded within it in one circumferential direction at the stranding point.
  • the plastic sheathing of the first inner strand forms the plastic matrix.
  • the core rope is compacted before being stranded with the outer strands to form the rotation-free wire rope.
  • a lifting device according to the invention with a drum drive, in particular a crawler crane, has a rotation-free wire rope according to the invention, which is designed as a running rope.
  • a running rope is a rope which, when used as intended, for example as a load rope of a lifting device, is deflected by pulleys or wound onto or unwound from a rope drum.
  • the rotation-free wire rope 1 shown schematically in cross-section is designed as a round strand rope and comprises a core rope 2 designed as a parallel lay rope and a single outer strand layer 3, which has sixteen outer strands 4, wherein the outer strands 4 are applied directly to the core rope 2.
  • the core rope is designed as a 1+8+8 wire rope and has a first, innermost core rope inner strand 5, which is surrounded by eight further core rope inner strands 6.
  • a core rope outer strand layer 7 comprises a total of eight core rope outer strands 8.
  • the core rope inner strands 5, 6 and the core rope outer strands 8 are compacted.
  • the core rope inner strands 5, 6 are embedded in a plastic matrix 9 made of polypropylene (PP) in such a way that all core rope inner strands 5, 6 are completely surrounded by the plastic matrix 9 in the circumferential direction.
  • PP polypropylene
  • the core rope outer strands 8 are embedded in the plastic matrix 9 in the core rope outer strand areas 10 facing the core rope inner strands 5, 6; that is, they are embedded only in certain areas.
  • the core rope outer strand areas 101 facing away from the core rope outer strands 8 are not embedded in the plastic matrix 9.
  • the core rope outer strand areas 10, 101 are separated from each other in the exemplary embodiments by a dashed circle line 102.
  • FIG. 1b The cross-section of the rotation-free wire rope 1, shown schematically, differs from the one in Fig. 1a This is demonstrated by the fact that it comprises a covering 11 made of a plastic material, which completely encloses the core rope 2 in a circumferential direction in the manner of a sheath. An outer strand layer 3 is applied directly to the covering 11.
  • the covering 11 can be designed as a further plastic matrix that encloses core rope outer strand areas 101 facing away from the core rope inner strands 5, 6 and into which outer strand areas of the outer strands 4 facing the core rope 2 are inserted.
  • the dashed circle 102 forms the following in Fig. 1 b
  • the wire rope 1 shown simultaneously forms a separating plane along which the plastic matrix 10 and the covering 11 are separated from each other, i.e., they lie loosely against each other without being connected to each other.
  • the core rope 2 of the in Fig. 1a and 1b The wire rope shown (1) is not compacted.
  • FIG. 1c The rotation-free wire rope 1, shown schematically in cross-section, differs from the one in Fig. 1a shown by the fact that a core rope 2 is compacted, thereby creating a smooth and flat core rope surface 12.
  • FIG. 1d The rotation-free wire rope 1, shown schematically in cross-section, differs from the one in Fig. 1b shown by the fact that a core rope 2 is compacted, thereby creating a smooth and flat core rope surface 12.
  • FIG. 1a-d not all outer strands 4, core rope inner strands 6, core rope outer strands 8 and core rope outer strand areas 10 facing the core rope inner strands 5, 6 and core rope outer strand areas 101 facing away from the core rope inner strands 5, 6 are provided with a reference sign.
  • the non-rotating wire ropes 1 shown are particularly suitable for use as running ropes in a lifting device with a drum drive, in particular a crane such as a crawler crane, a mobile crane, a deck crane of a ship, a ship unloading crane or a tower crane.
  • a crane such as a crawler crane, a mobile crane, a deck crane of a ship, a ship unloading crane or a tower crane.
  • the wire ropes D1 , D2 , D1 ' and D2 ' used for the wire rope properties shown have a core rope of construction 1+8+8, wherein the core rope inner strands and core rope outer strands are compacted before being stranded to form the core rope.
  • a single outer strand layer comprises 16 outer strands of construction 1+6, that is, a single core wire ("1") is stranded with six (“+6") surrounding wires to form the outer strand.
  • the respective core rope and the 16 outer strands are stranded together.
  • the rope diameter of each wire rope D 1 , D 2 , D 1' and D 2' is 22 mm.
  • All core rope strands were compacted before being stranded together to form a core rope.
  • Wire rope D2 differs from wire rope D1 in that one core strand of wire rope D2 is compacted. Neither wire rope D1 nor D2 has core strands embedded in a plastic matrix.
  • the wire rope D 1' differs from the wire rope D 1 in that only the inner strands of the core rope of the wire rope D 1' are embedded in a plastic matrix. Neither the wire ropes D 1 nor D 1' have a compacted core rope.
  • the wire rope D 2' differs from the wire rope D 2 in that only the inner strands of the core rope of the wire rope D 2' are embedded in a plastic matrix. Both wire ropes D 2 and D 2' have a compacted core rope.
  • the outer strands are applied directly to the core rope, meaning the core rope outer strands and the outer strands lie directly against each other.
  • FIG. 2a The diagram shown depicts the relative actual breaking strength for the four wire ropes D 1 , D 2 , D 1' and D 2' .
  • the breaking strength of wire rope D 1 is F m1
  • that of wire rope D 2 is F m2
  • that of wire rope D 1' is F m1'
  • that of wire rope D 2 is F m2' .
  • the ratio F m2 to F m1 is calculated.
  • the ratio F m1' to F m1 is formed.
  • the ratio F m2' to F m1 is formed.
  • the diagram shows the relative service life and the relative discard criteria for the four wire ropes D1 , D2 , D1 ' and D2 .
  • the discard criteria are the so-called 100% discard criteria, meaning that the wire rope must be replaced for the continued safe operation of a device guiding the wire rope.
  • wire rope D 1 The service life of wire rope D 1 is L 1 , that of wire rope D 2 is L 2 , that of wire rope D 1' is L 1' and that of wire rope D 2' is L 2' .
  • wire rope D 1 The 100% discard maturity of wire rope D 1 is A 1 , that of wire rope D 2 is A 2 , that of wire rope D 1' is A , and that of wire rope D 2' is A 2' .
  • the relative service life of wire rope D1 is 100%, while its relative 100% discard maturity A is 80%. These are reference values derived by calculating the ratios A1 to A1 and L1 to L1 , respectively.
  • the ratio L2 to L1 is calculated.
  • the relative service lives of the other wire ropes are determined analogously with respect to the service life L1 of wire rope D1 .
  • the ratio A2 to A1 is calculated.
  • the relative 100% discard maturity of the other wire ropes is determined analogously with respect to the 100% discard maturity A1 of wire rope D1 .
  • wire rope D 1 For wire rope D 1 , an increase in service life L 1' of 6% was determined compared to that of wire rope D 1 , while an increase in 100% discard maturity A 1' from 80% to 84% was determined.
  • wire rope D 2 For wire rope D 2 , an increase in service life L 2 of 13% was determined compared to that of wire rope D 1 , while an increase in 100% discard maturity A 2 from 80% to 90% was determined.
  • wire ropes D 1' and D 2' show a significant increase in the relative actual breaking strength, the relative service life and the relative 100% discard maturity.
  • the wire rope additionally has a covering surrounding the core rope that has no connection to a plastic matrix in which only the core rope inner strands are embedded.

Landscapes

  • Ropes Or Cables (AREA)

Claims (15)

  1. Câble métallique antigiratoire (1 ; D1', D2'), en particulier câble rond antigiratoire, qui comporte un câble d'âme (2) et des torons externes (4) entourant le câble d'âme, lesdits torons externes formant une couche de torons externes unique (3), le câble d'âme (2) comprenant plusieurs torons internes de câble d'âme (5, 6) qui sont noyés dans une matrice plastique (9) et qui sont entourés par des torons externes de câble d'âme (8) qui forment une couche de torons externes de câble d'âme (7),
    caractérisé en ce que
    exclusivement les plusieurs torons internes de câble d'âme (5, 6) du câble d'âme (2) sont complètement noyés dans la matrice plastique (9).
  2. Câble métallique antigiratoire selon la revendication 1,
    caractérisé en ce que
    les torons externes de câble d'âme (8), qui ne sont que partiellement noyés dans la matrice plastique (10), sont en contact direct avec les torons externes (4) avec des régions de torons externes de câble d'âme (101) orientées à l'opposé des torons internes de câble d'âme (5, 6).
  3. Câble métallique antigiratoire selon la revendication 1 ou 2,
    caractérisé en ce que
    les torons externes de câble d'âme (8) du câble d'âme (2) sont noyés dans la matrice plastique (9) uniquement avec des régions de torons externes de câble d'âme (10) orientées vers les torons internes de câble d'âme (5, 6), et des régions de torons externes de câble d'âme (101) orientées à l'opposé des torons internes de câble d'âme (5, 6) ne sont pas noyées dans la matrice plastique.
  4. Câble métallique antigiratoire selon l'une des revendications 1 à 3,
    caractérisé en ce que
    des torons externes de câble d'âme (8) adjacents sont séparés l'un de l'autre par la matrice plastique (9), qui s'étend depuis les torons internes de câble d'âme (5, 6) dans la direction radiale du câble métallique (1) jusqu'aux torons externes de câble d'âme (8), la matrice plastique (10) s'étendant dans la direction radiale du câble d'âme uniquement dans une mesure telle que des régions de torons externes de câble d'âme (101) orientées à l'opposé des torons internes de câble d'âme (5, 6) ne sont pas noyées dans la matrice plastique.
  5. Câble métallique antigiratoire selon la revendication 1,
    caractérisé en ce que
    le câble d'âme (2) est compacté.
  6. Câble métallique antigiratoire selon l'une des revendications 1 à 5,
    caractérisé en ce que
    les torons externes (4) sont appliqués directement sur le câble d'âme (2).
  7. Câble métallique antigiratoire selon l'une des revendications 1 à 6,
    caractérisé en ce que
    le câble d'âme (2) est un câble à pas parallèle.
  8. Câble métallique antigiratoire selon la revendication 1,
    caractérisé en ce que
    le câble métallique antigiratoire (1 ; D1') présente une force de rupture réelle Fm qui est entre 3 % et 45 % plus élevée que la force de rupture réelle Fm d'un câble métallique (D1) de même construction dans lequel des torons internes de câble d'âme ne sont pas noyés dans une matrice plastique.
  9. Câble métallique antigiratoire selon la revendication 1,
    caractérisé en ce que
    le câble métallique antigiratoire (1; D1') à une contrainte de traction nominale σZ de 127 N/mm2 +/- 10 N/mm2 présente une durée de vie L et/ou un critère de rebut A en cycles de flexion qui est entre 3 % et 40 % plus élevée que la durée de vie L et/ou le critère de rebut A d'un câble métallique (D1) de même construction dans lequel des torons internes de câble d'âme ne sont pas noyés dans une matrice plastique.
  10. Câble métallique antigiratoire selon la revendication 1 et la revendication 5,
    caractérisé en ce que
    le câble métallique antigiratoire (1; D2') présente une force de rupture réelle Fm qui est entre 15 % et 50 % plus élevée que la force de rupture réelle Fm d'un câble métallique (D1') de même construction dont le câble d'âme n'est pas compacté.
  11. Câble métallique antigiratoire selon la revendication 1 et la revendication 5,
    caractérisé en ce que
    le câble métallique antigiratoire (1 ; D2') à une contrainte de traction nominale σZ de 127 N/mm2 +/- 10 N/mm2 présente une durée de vie L et/ou un critère de rebut A qui est entre 3 % et 45 % plus élevée que la durée de vie L et/ou le critère de rebut A d'un câble métallique (D1') de même construction dont le câble d'âme n'est pas compacté.
  12. Câble métallique antigiratoire selon l'une des revendications 1 à 11,
    caractérisé en ce que
    les torons internes de câble d'âme (5, 6) et les torons externes de câble d'âme (8) sont conçus comme des torons complets dans lesquels aucun fil n'est omis pour créer une cavité destinée à recevoir du plastique formant la matrice plastique (10).
  13. Procédé de production d'un câble métallique antigiratoire (1 ; D1', D2'), en particulier d'un câble rond antigiratoire, dans lequel un premier toron interne de câble d'âme (5) est entouré d'un revêtement plastique et est câblé en un point de câblage d'un dispositif de câblage avec d'autres torons internes de câble d'âme (6) et des torons externes de câble d'âme (8) pour former un câble d'âme (2), et des torons externes (4) sont câblés avec le câble d'âme (2) pour former le câble métallique antigiratoire (1 ; D1', D2'),
    caractérisé en ce que
    exclusivement les torons internes de câble d'âme (6) sont complètement noyés dans une matrice plastique.
  14. Procédé selon la revendication 13,
    caractérisé en ce que
    le câble d'âme (2) est compacté avant câblage avec les torons externes (4) pour former le câble métallique antigiratoire (1 ; D1', D2').
  15. Dispositif de levage avec un entraînement de tambour, en particulier grue chenillée, qui comporte un câble métallique antigiratoire (1 ; D1', D2') selon l'une des revendications 1 à 12, le câble métallique antigiratoire (1 ; D1', D2') étant conçu comme un câble courant.
EP24783282.7A 2023-12-01 2024-10-02 Câble métallique antigiratoire, son procédé de production et dispositif de levage comprenant un entraînement de tambour Active EP4587637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU505676 2023-12-01
PCT/EP2024/077803 WO2025113861A1 (fr) 2023-12-01 2024-10-02 Câble métallique non rotatif, son procédé de production et dispositif de levage comprenant un entraînement de tambour

Publications (3)

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EP4587637A1 EP4587637A1 (fr) 2025-07-23
EP4587637B1 true EP4587637B1 (fr) 2025-11-12
EP4587637C0 EP4587637C0 (fr) 2025-11-12

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Country Link
EP (1) EP4587637B1 (fr)
ES (1) ES3062671T3 (fr)
WO (1) WO2025113861A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019038665A1 (fr) * 2017-08-21 2019-02-28 Scaw South Africa (Pty) Ltd Câble de benne traînante et de pelle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161151A5 (fr) 1971-11-16 1973-07-06 Saar Gmbh Drahtseilwerk
DE2949754C2 (de) 1979-12-07 1981-12-24 Gerhard 8632 Neustadt Dietz Drahtseil
DE3937588A1 (de) 1989-11-12 1991-05-16 Dietz Gerhard Drahtseil mit kunststoff-innenanteil
DE202013102594U1 (de) 2013-06-18 2013-06-25 Rae - Antriebselemente Gmbh Drahtseil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019038665A1 (fr) * 2017-08-21 2019-02-28 Scaw South Africa (Pty) Ltd Câble de benne traînante et de pelle

Also Published As

Publication number Publication date
EP4587637C0 (fr) 2025-11-12
ES3062671T3 (en) 2026-04-13
WO2025113861A1 (fr) 2025-06-05
EP4587637A1 (fr) 2025-07-23

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