EP0111797A1 - Câble métallique à plusieurs couches de torons - Google Patents

Câble métallique à plusieurs couches de torons Download PDF

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Publication number
EP0111797A1
EP0111797A1 EP83112131A EP83112131A EP0111797A1 EP 0111797 A1 EP0111797 A1 EP 0111797A1 EP 83112131 A EP83112131 A EP 83112131A EP 83112131 A EP83112131 A EP 83112131A EP 0111797 A1 EP0111797 A1 EP 0111797A1
Authority
EP
European Patent Office
Prior art keywords
strands
plastic
outer strands
rope
wire rope
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.)
Granted
Application number
EP83112131A
Other languages
German (de)
English (en)
Other versions
EP0111797B1 (fr
Inventor
Roland Dipl.-Ing. Verreet
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.)
Drahtseilwerk Saar GmbH
Original Assignee
Drahtseilwerk Saar GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6180785&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0111797(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Drahtseilwerk Saar GmbH filed Critical Drahtseilwerk Saar GmbH
Priority to AT83112131T priority Critical patent/ATE20256T1/de
Publication of EP0111797A1 publication Critical patent/EP0111797A1/fr
Application granted granted Critical
Publication of EP0111797B1 publication Critical patent/EP0111797B1/fr
Expired 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
    • D07B1/068—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
    • 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
    • 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
    • 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
    • D07B2201/1016—Rope or cable structures characterised by their internal structure characterised by the use of different strands
    • 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
    • D07B2201/20—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
    • 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
    • D07B2401/2075—Reducing wear externally

Definitions

  • the invention relates to a wire rope with a plurality of strands.
  • Wire ropes are mainly used when running over rollers, but also on other guides, on drums, etc. Exposed to wear. This applies not only to the outer strand layer, but in the case of multi-layer ropes also to the inner strand layer (s) due to the support of the outer strand layer on and the relative movement of the outer strands relative to that comprising the inner strand layer (s) Rope core and possibly within the rope core.
  • rope sheaths made of plastic are known, which should cushion the rope and protect the rest from corrosion.
  • the proposal is known from DE-OS 1 510 073 to extend the dovetail-shaped anchors mentioned to humps on the rope surface, which absorb the contact pressures of the rope and largely lead inward over the anchors mentioned, so that the outer strands are not directly affected. Since this function is based on the plastic present in the spaces between the outer strands and does not necessarily require the complete sheathing of the rope, the apex lines of the outer strands can also end here with the rope profile, i.e. their uppermost wire humps can be exposed.
  • Another means of protecting the wire ropes is to let them run over plastic rollers.
  • the plastic rollers very preferably protect the outer strands and especially their outer circumferential sections Recognition of discard maturity because wire breaks already occur inside while everything is still intact on the outside.
  • the plastic rollers are also susceptible to diagonal pull.
  • the invention is based on the object of protecting the outer strand layer of a multilayer wire rope to a desired extent. Wire breaks in the outer strand layer should be recognizable. Other advantages are mentioned below.
  • the intended purpose is achieved in that in a wire rope with a plurality of strand layers at least one quarter and at most three quarters of the outer strands have a plastic sheath which projects beyond the circle of the wire rope circumscribing the other outer strands.
  • the outer strands of the rope are only partially protected by padding, namely the sheathed strands.
  • the other strands are protected to a certain extent by the fact that the encircling circle of the wire rope is surmounted by the sheathing and therefore does not carry them or carries them less.
  • the desired degree of protection of the outer strand layer can be set with the numerical ratio between the sheathed and the other strands and with the extent of the protrusion of the sheaths.
  • the uncovered strands allow wire breaks to be recognized by them without any hindrance.
  • the abrasion of the sheathing can be included in the calculation. You can use higher or less abrasion-resistant plastic, dimension the sheath thicker or thinner and choose the number of sheathed strands taking into account the abrasion.
  • the service life of the outer strand layer can be influenced in this as well as in that direction by stressing it over time. To the extent that the sheath wears out and its protrusion decreases beyond the circle circumscribing the other, unsheathed strands, these are also exposed to progressive contact and greater transverse pressures.
  • the stress on the strand layer is similar to that of a rope with normal outer strands. Then wire breaks can also be seen on the originally coated strands. For this reason, too, it is possible to provide for complete abrasion of the plastic coating.
  • the increased, lifespan of the rope core can, since the lifespan of the outer strand layer can be adapted almost arbitrarily according to the foregoing, can be implemented almost completely in the lifespan of the rope as a whole. With the service life of the outer strand layer, it is only necessary to remain slightly below that of the rope core in order to recognize that it is ready to take off. Annoying scraps do not occur when the plastic quantities and dimensions of individual strand sheathings, which are only minor in comparison to the sheathing of an entire rope, do not occur.
  • the metallic cross-section of the plastic-sheathed outer strands will touch or circumscribe the circumscribed circle so that the exposed strand continues to bear transverse forces.
  • a slight cutting of the circumscribing circle and protrusion may be necessary for carrying it to compensate for the elastic sinking of the strand into the plastic that is still present on its underside, which is to be expected in each case.
  • their metallic cross section can be kept completely within the circumscribed circle.
  • the result of the procedure is particularly advantageous in that the plastic-coated outer strands are pressed into the cable cross-section while the plastic sheath is thermally deformed on the previously heated rope core and / or the other previously stranded outer strands.
  • the plastic then deforms exactly where it should, and not where it should not: On the underside of the strand, it is pressed into the spaces between the strands due to the heating of the surrounding material, so that this does not happen first happen in the course of use and can loosen the rope structure, rather the strand immediately receives a firm, final bed, and on the unheated upper side the sheath is preserved, as it is.
  • the coated strands only press deeper into the rope cross-section after use and thereby loosen - which can be compensated for by a relative retention of these strands during the stranding - can be counteracted by the fact that the plastic-coated outer strands are chosen a little less elastic than the other outer strands and as the rope core comprising the strands under the outer strands. The loosening is then prevented by the greater elasticity of the other rope elements.
  • a particularly advantageous embodiment of the invention consists of a Warrington-type rope with a thicker and thinner outside in which the smaller outer strands have the plastic coating. Because with this construction, the smaller strands mentioned only fill in gaps and have no load-bearing function, the rope structure is stable without them.
  • plastic-coated outer strands will be distributed as evenly as possible over the circumference of the rope.
  • the drawing shows an embodiment of the invention. It shows a cross section through a Warrington rope.
  • An inner strand layer of five strands 2 and an outer strand layer of five larger strands 3 and five smaller strands 4 are stranded on a core strand 1 in one operation.
  • the larger strands 3 lie in the grooves between the strands 2 of the inner strand layer.
  • the smaller strands 4 sit on the humps of the strands 2 in the spaces between the strands 3.
  • the strands 4 are provided with an extruded casing 5 made of plastic. They have been pressed in during the stranding in such a way that the sheathing on the underside of the strands 4 has been slightly deformed, i.e. has adapted to the curvature of the strands 2 and has pressed something into the side in the interstices between the strands 2 and the strands 3.
  • the sheath 5 projects beyond the circumscribing circle 6 of the metallic cable cross section.
  • the protrusion of the jackets 5 over the circumscribing circle 6 is 0.30 mm.
  • it could be in a range from 0.10 to 0.50 mm, preferably from 0.20 to 0.40 mm, to be changed. In the case of ropes of a different diameter, these values would increase or decrease proportionally.
  • the protection of the interior of the rope that can be seen from the drawing by the padding of the sheathed outer strands - and mainly absorbing the transverse forces - on the underside is of particular advantage even with normal ropes, in particular twist-free ropes in which the outer strands cross the strands of the next inner strand layer and through the upholstery the high surface pressure at the crossovers is alleviated.

Landscapes

  • Ropes Or Cables (AREA)
  • Communication Cables (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Semiconductor Memories (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP83112131A 1982-12-16 1983-12-02 Câble métallique à plusieurs couches de torons Expired EP0111797B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112131T ATE20256T1 (de) 1982-12-16 1983-12-02 Drahtseil mit einer mehrzahl von litzenlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3246508 1982-12-16
DE19823246508 DE3246508A1 (de) 1982-12-16 1982-12-16 Drahtseil mit einer mehrzahl von litzenlagen

Publications (2)

Publication Number Publication Date
EP0111797A1 true EP0111797A1 (fr) 1984-06-27
EP0111797B1 EP0111797B1 (fr) 1986-06-04

Family

ID=6180785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112131A Expired EP0111797B1 (fr) 1982-12-16 1983-12-02 Câble métallique à plusieurs couches de torons

Country Status (5)

Country Link
EP (1) EP0111797B1 (fr)
AT (1) ATE20256T1 (fr)
DE (1) DE3246508A1 (fr)
DK (1) DK163254C (fr)
NO (1) NO166593C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018224069A1 (fr) * 2017-06-08 2018-12-13 Pfeifer Drako Drahlseilwerk Gmbh & Co. Kg Câble métallique servant de câble de traction pour ascenseurs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348033A (en) * 1920-03-17 1920-07-27 George C Moon Wire rope
US2136865A (en) * 1936-10-22 1938-11-15 Malcolm W Reed Wire rope
US2348234A (en) * 1940-06-19 1944-05-09 Jr Richard F Warren Flexible composite rope
GB1145014A (en) * 1965-03-22 1969-03-12 Peter Philip Riggs Strand and rope production
DE1510073A1 (de) 1963-04-27 1969-07-31 Alfred Dietz Litzenspiralseil
US3482034A (en) * 1967-03-07 1969-12-02 Rochester Ropes Inc Conductive tow cable
DE2326742B2 (de) * 1973-05-25 1981-04-23 Drahtseilwerk Saar GmbH, 6654 Kirkel Verfahren zur Herstellung eines Drahtseils mit einer in einer Einbettung aus Kunststoff liegenden inneren Litzenlage
FR2505376A1 (fr) * 1981-05-08 1982-11-12 Teufelberger Gmbh Cable a torons a plusieurs couches a structure parallele

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348033A (en) * 1920-03-17 1920-07-27 George C Moon Wire rope
US2136865A (en) * 1936-10-22 1938-11-15 Malcolm W Reed Wire rope
US2348234A (en) * 1940-06-19 1944-05-09 Jr Richard F Warren Flexible composite rope
DE1510073A1 (de) 1963-04-27 1969-07-31 Alfred Dietz Litzenspiralseil
GB1145014A (en) * 1965-03-22 1969-03-12 Peter Philip Riggs Strand and rope production
US3482034A (en) * 1967-03-07 1969-12-02 Rochester Ropes Inc Conductive tow cable
DE2326742B2 (de) * 1973-05-25 1981-04-23 Drahtseilwerk Saar GmbH, 6654 Kirkel Verfahren zur Herstellung eines Drahtseils mit einer in einer Einbettung aus Kunststoff liegenden inneren Litzenlage
FR2505376A1 (fr) * 1981-05-08 1982-11-12 Teufelberger Gmbh Cable a torons a plusieurs couches a structure parallele

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018224069A1 (fr) * 2017-06-08 2018-12-13 Pfeifer Drako Drahlseilwerk Gmbh & Co. Kg Câble métallique servant de câble de traction pour ascenseurs
JP2020523265A (ja) * 2017-06-08 2020-08-06 プファイファー ドラコ ドラートザイルベルク ゲゼルシャフト ミット ベシュレンクテル ハフツング エレベータ用牽引ロープとしてのワイヤロープ

Also Published As

Publication number Publication date
DE3246508A1 (de) 1984-06-20
DK163254C (da) 1992-06-29
DK583283D0 (da) 1983-12-16
NO834232L (no) 1984-06-18
DK163254B (da) 1992-02-10
NO166593B (no) 1991-05-06
DK583283A (da) 1984-06-17
DE3246508C2 (fr) 1989-12-21
EP0111797B1 (fr) 1986-06-04
ATE20256T1 (de) 1986-06-15
NO166593C (no) 1991-09-18

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