EP0199461A2 - Fabrication d'éléments allongés comme des torons et des câbles - Google Patents

Fabrication d'éléments allongés comme des torons et des câbles Download PDF

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Publication number
EP0199461A2
EP0199461A2 EP86302036A EP86302036A EP0199461A2 EP 0199461 A2 EP0199461 A2 EP 0199461A2 EP 86302036 A EP86302036 A EP 86302036A EP 86302036 A EP86302036 A EP 86302036A EP 0199461 A2 EP0199461 A2 EP 0199461A2
Authority
EP
European Patent Office
Prior art keywords
elongate
bundle
elements
length
elongate member
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.)
Ceased
Application number
EP86302036A
Other languages
German (de)
English (en)
Other versions
EP0199461A3 (fr
Inventor
John Mawson Walton
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.)
Bridon PLC
Original Assignee
Bridon PLC
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 Bridon PLC filed Critical Bridon PLC
Publication of EP0199461A2 publication Critical patent/EP0199461A2/fr
Publication of EP0199461A3 publication Critical patent/EP0199461A3/fr
Ceased legal-status Critical Current

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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
    • D07B1/06—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
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/08—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • 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
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/102—Rope or cable structures characterised by their internal structure including a core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1028—Rope or cable structures characterised by the number of strands
    • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1044—Rope or cable structures twisted characterised by a value or range of the pitch parameter given
    • 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
    • D07B2201/2019—Strands pressed to shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/50—Lubricants
    • 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

  • This invention relates to the manufacture of an elongate member comprising a plurality of elongate elements.
  • the elongate member may, for example, be a strand, a rope, or a cable.
  • the elongate elements may, for example, be wires, strands, tubes, or filaments of metallic or non-metallic material, e.g. glass, carbon, or composite material.
  • the elongate elements may surround a central core.
  • the component wires extend helically around the axis of the strand, generally with a helical lay length of 6 to 12 times the strand diameter.
  • This helical arrangement keeps the wires together and allows the strand to be flexed and, therefore, coiled.
  • the tensile strength of the strand is less than the sum of the tensile strengths of the wires.
  • conventional stranding machines subject the wire to considerable bending, which is undesirable when strand is being produced for structural applications in which tensile strength and axial stiffness of the strand are of paramount importance.
  • the equipment in each case comprises: an elongate track; a rotatable clamp at one end of the track; anchoring means at the other end of the track, having rotatable tensioning spaced anchorages for wires or strands extending parallel to the track; a trolley movable along the track and carrying a closing die and guide means; drive means for moving the trolley and for rotating the clamp; and supports at intervals along the track.
  • the present invention provides a method of making an elongate member comprising a plurality of elongate elements extending helically around the axis of the elongate member, the method comprising drawing individual elongate elements off a plurality of stationary coils, each elongate element being drawn off in such a manner that the element is elastically twisted, guiding the elongate element to a stationary closing means in which a bundle of the elements is formed, the elongate elements immediately before being formed into the bundle being substantially free from any curvature that will result in residual slackness in the elongate member, and withdrawing the bundle from the closing means and simultaneously rotating the bundle about its axis so as to form the elongate member and substantially untwist the elongate elements.
  • an elongate member can be produced whose length is limited only by the length of a coil or is unlimited if a new coil can be connected to the trailing end of a used coil, which will usually be possible.
  • the twist in the element drawn off the coil and the untwisting of the element due to the rotation of the bundle being withdrawn from the closing means can be matched by ensuring that the turns of the coil are on average substantially equal in length to the lay length of the helix of the elongate member, assuming that the element in the coil has no twist.
  • the length of the elongate element in each turn of the coil should be equal to the length of the same elongate element on one complete helical turn of the coil, which length is slightly longer than the lay length and varies from the inside to the outside of the elongate member; however, an approximation to the lay length is sufficient in practice.
  • the method of the invention is best suited to elongate members of long lay length, viz. at least 12 times the diameter of the member (i.e. the diameter of a circle circumscribing the member), preferably 12 to 150 times the diameter, more preferably 20 to 75 times.
  • the method can be used with stiff elements or with elements that cannot tolerate much bending.
  • the method is also well suited to the production of elongate members in great lengths, preferably at least 300 m, more preferably at least 500 m.
  • the coil preferably has turns of substantially constant length, or at least cyclically or randomly varying length (within a limited range). However, if the coil has turns of decreasing or increasing length (e.g. if the coil has been reeled in layers), it is possible to decrease or increase the lay length of the elongate member correspondingly during manufacture, by progressively changing the rate of rotation of the bundle being withdrawn. This technique may be advantageously employed to produce a member which does not twist in the middle under the influence of its own weight when erected in a vertical plane but instead offers a substantially constant torque along its length.
  • Such modification of the rotation rate can also be carried out if excessive build up of differential twist is observed in the elements.
  • the elements may be applied to a central core supplied to the closing means while being rotated synchronously with the rotation of the bundle being withdrawn.
  • the core may, of course, have been produced by the method of the invention.
  • the strand 1 shown in Figure 1 comprises a bundle of 73 steel wires 2 extending helically around the strand axis.
  • the rope 3 shown in Figure 2 has a bundle of 12 "Dyform" (Trade Mark) steel wire strands 4 extending helically around an independent wire rope core (IWRC) 6 which itself comprises six "Dyform” steel wire strands 7 wound on a central steel wire strand 8.
  • the rope 9 shown in Figure 3 has a bundle of 12 conventional 19-wire steel strands 11 extending helically around an IWRC 12.
  • the method particularly described below is suitable for manufacturing such strand and rope with a very long pitch or lay in continuous lengths.
  • Long lay strands and ropes are particularly attractive for structural applications where little bending is involved and where tensile strength and axial stiffness are of paramount importance.
  • the constituent wires 2 or strands 4 are provided in coils or spools 21 having a mean circumference equivalent to the length of wire or strand in a single lay length or pitch of the strand or rope bundle to be produced.
  • the coils 21 are supported on separate fixed stands or pay-off frames (not shown) in such a way that one (360°) twist is introduced into the wire 2 or strand 4 for each lap pulled off.
  • the number of coils 21 and stands available must be at least equal to the number of wires or strands required in the strand or rope bundle.
  • the ends of the wires 2 or strands 4 are led through straightening rollers (not shown), if necessary, and guided to a collector plate 22 where they are brought together in a predetermined pattern appropriate to the strand or rope construction. From here the wires 2 or strands 4 converge to form a bundle in a forming die 23 which may be a circular or shaped profile depending on the type of strand or rope cross-section.
  • the strand 1 or rope 3 is led to a traction device 26, which is illustrated by way of example as a caterpillar haul-off and which is capable of being simultaneously rotated about the longitudinal axis of the strand 1 or rope 3 by a motor 26, the rotational and axial motions being interlinked, by mechanical or other means, to maintain a pre-set ratio.
  • a traction device 26 which is illustrated by way of example as a caterpillar haul-off and which is capable of being simultaneously rotated about the longitudinal axis of the strand 1 or rope 3 by a motor 26, the rotational and axial motions being interlinked, by mechanical or other means, to maintain a pre-set ratio.
  • the strand 1 or rope 3 is led to a take-up stand or cradle 28 which contains a large drum or reel 29, driven by a motor 31 (preferably via a torque converter to maintain a controlled tension in the strand or rope 24), and which is itself rotated by a motor 32 about the longitudinal axis of the strand 1 or rope 3 in synchronism with the rotation of the traction device 26.
  • a traversing device (not shown) may be attached to the take-up stand 2B to control the coiling of the strand 1 or rope 3.
  • Additional lubrication, blocking, wrapping and/or sheathing equipment may be interposed at suitable locations between the collector plate 22 and the take-up stand 28 if required. Also rollers and preforming/postforming devices may be introduced to improve the formation of the strand or rope if desired.
  • the wires or strands have a sufficient degree of straightness prior to stranding or closing. This may be defined in relation to the end product by requiring that any residual curvature of the wires or strands immediately prior to being formed into the strand or rope shall be always less than the curvature imparted to the same member when formed into the helical product.
  • Multi-layer strands or ropes are formed by feeding the core from a pay-off stand rotated synchronously with the take-up stand.
  • the wire is obtained in the form of coils 21 from a 915 mm (36 inch) diameter block (i.e. 2.88 m circumference); thus a given amount of twist is imparted to the wire during uncoiling from the stationary coil.
  • the wires 2 are guided to the die 23 in the manner described above and are withdrawn by the traction device 26, which rotates so that the strand 1 acquires the prescribed lay length of 2.88 m and in such a direction that the wires 2 are untwisted, i.e. the wires in the strand 1 are free of twist and there is no build up of twist between the die 23 and the coils 21.
  • the curvature of the outer wires in the strand will be 0.102m-', which is considerably less than the curvature of the wire in the coil (0.694 m-'). If necessary the wires should therefore by straightened after uncoiling, to a curvature of less than 0.102 m-', i.e. a deviation from straightness not exceeding 2.5 mm over a metre length; this can be done by conventional straightening rollers. Alternatively, if the material used has a yield strain in excess of the bending strain due to coiling (0.55%), then straightening equipment should not be required, since the wire will straighten by its own elasticity.
  • the method described above is especially advantageous for long lay strand, rope, etc., it is also applicable to shorter lays, in which case, however, the amount of twist which needs to be present in the elements drawn off the coils is increased. If too much twist is introduced, the torsional stress may exceed the elastic limit of the material of the elongate element; accordingly, the minimum lay length achievable will depend on the torsional elastic limit of the material.
  • an advantageous product comprising a bundle of elongate elements (with or without a central core), with a lay length 12 to 150 times - (preferably 20 to 75 times) the diameter of the bundle, and having a length of at least 300 m - (preferably at least 500 m).
  • a product could not have been produced by the processes available hitherto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Wire Processing (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP86302036A 1985-03-19 1986-03-19 Fabrication d'éléments allongés comme des torons et des câbles Ceased EP0199461A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08507090A GB2174118B (en) 1985-03-19 1985-03-19 Manufacture of elongate members such as strand and rope
GB8507090 1985-03-19

Publications (2)

Publication Number Publication Date
EP0199461A2 true EP0199461A2 (fr) 1986-10-29
EP0199461A3 EP0199461A3 (fr) 1987-08-05

Family

ID=10576242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302036A Ceased EP0199461A3 (fr) 1985-03-19 1986-03-19 Fabrication d'éléments allongés comme des torons et des câbles

Country Status (2)

Country Link
EP (1) EP0199461A3 (fr)
GB (1) GB2174118B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0916761A1 (fr) * 1997-11-17 1999-05-19 Shinko Kosen Kogyo Kabushiki Kaisha Procédé et appareil pour la fabrication d'un cable
EP0916762A1 (fr) * 1997-11-17 1999-05-19 Shinko Kosen Kogyo Kabushiki Kaisha Procédé et appareil pour la fabrication d'un cable
KR100418285B1 (ko) * 1995-10-27 2004-06-05 엔.브이. 베카에르트 에스.에이. 다중-스트랜드강철코드
EP1437451A1 (fr) * 2003-01-08 2004-07-14 Fontainunion S.A. Elément filaire de renforcement pour béton
EP1870512A1 (fr) * 2005-04-14 2007-12-26 Bridgestone Corporation Toronneuse et méthode pour le revêtement de câbles toronnés
WO2013029607A3 (fr) * 2011-09-02 2013-05-02 Casar Drahtseilwerk Saar Gmbh Dispositif et procédé pour la fabrication d'un câble métallique
EP3159296A4 (fr) * 2014-06-19 2018-03-14 Kiswire Ltd. Câble pour ascenseur et son procédé de fabrication
CN110409204A (zh) * 2019-07-09 2019-11-05 咸阳宝石钢管钢绳有限公司 一种碳纤维复合材料填充钢丝绳及其制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251441B (en) * 1991-01-03 1994-07-27 Bridon Plc Flexible tension member
CN111705383B (zh) * 2020-06-28 2021-12-24 宁波市祥宇机械有限公司 一种高效倍捻合股机
CN111705532B (zh) * 2020-06-28 2021-12-21 宁波市祥宇机械有限公司 一种倍捻合股机主轴传动装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1158135A (fr) * 1956-09-28 1958-06-06 Procédé et dispositif pour le filage de câbles et câbles ainsi obtenus
US3383704A (en) * 1967-01-10 1968-05-14 Southwire Co Multistrand cable
DE2261291A1 (de) * 1972-12-15 1974-06-27 Westfaelische Union Ag Tragelement aus gebuendelten draehten und verfahren zu seiner herstellung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069513B (de) * 1957-05-23 1959-11-19 Kunstzijdespinnerij Nyma N. V., Nijmegen (Niederlande) Verfahren und Vorrichtung zur Herstellung von Reifenkord
GB1172358A (en) * 1966-05-07 1969-11-26 Dunlop Co Ltd Method for the manufacture of Cord

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1158135A (fr) * 1956-09-28 1958-06-06 Procédé et dispositif pour le filage de câbles et câbles ainsi obtenus
US3383704A (en) * 1967-01-10 1968-05-14 Southwire Co Multistrand cable
DE2261291A1 (de) * 1972-12-15 1974-06-27 Westfaelische Union Ag Tragelement aus gebuendelten draehten und verfahren zu seiner herstellung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100418285B1 (ko) * 1995-10-27 2004-06-05 엔.브이. 베카에르트 에스.에이. 다중-스트랜드강철코드
EP0916761A1 (fr) * 1997-11-17 1999-05-19 Shinko Kosen Kogyo Kabushiki Kaisha Procédé et appareil pour la fabrication d'un cable
EP0916762A1 (fr) * 1997-11-17 1999-05-19 Shinko Kosen Kogyo Kabushiki Kaisha Procédé et appareil pour la fabrication d'un cable
EP1437451A1 (fr) * 2003-01-08 2004-07-14 Fontainunion S.A. Elément filaire de renforcement pour béton
BE1015295A3 (fr) * 2003-01-08 2005-01-11 Fontainunion S A Element de renforcement pour beton.
EP1870512A1 (fr) * 2005-04-14 2007-12-26 Bridgestone Corporation Toronneuse et méthode pour le revêtement de câbles toronnés
EP1870512A4 (fr) * 2005-04-14 2010-02-17 Bridgestone Corp Toronneuse et méthode pour le revêtement de câbles toronnés
WO2013029607A3 (fr) * 2011-09-02 2013-05-02 Casar Drahtseilwerk Saar Gmbh Dispositif et procédé pour la fabrication d'un câble métallique
EP3159296A4 (fr) * 2014-06-19 2018-03-14 Kiswire Ltd. Câble pour ascenseur et son procédé de fabrication
US10443191B2 (en) 2014-06-19 2019-10-15 Kiswire Ltd. Rope for elevator and manufacturing method therefor
CN110409204A (zh) * 2019-07-09 2019-11-05 咸阳宝石钢管钢绳有限公司 一种碳纤维复合材料填充钢丝绳及其制造方法

Also Published As

Publication number Publication date
GB2174118B (en) 1989-01-05
GB8507090D0 (en) 1985-04-24
EP0199461A3 (fr) 1987-08-05
GB2174118A (en) 1986-10-29

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