EP1528031B1 - Fixation démontable d' un câble à un tambour - Google Patents

Fixation démontable d' un câble à un tambour Download PDF

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Publication number
EP1528031B1
EP1528031B1 EP04024917A EP04024917A EP1528031B1 EP 1528031 B1 EP1528031 B1 EP 1528031B1 EP 04024917 A EP04024917 A EP 04024917A EP 04024917 A EP04024917 A EP 04024917A EP 1528031 B1 EP1528031 B1 EP 1528031B1
Authority
EP
European Patent Office
Prior art keywords
cable
connecting piece
opening
drum
thickening
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.)
Not-in-force
Application number
EP04024917A
Other languages
German (de)
English (en)
Other versions
EP1528031A1 (fr
Inventor
Klaus-Jürgen Winter
Heinrich Flaig
Jürgen Backsmann
Franz Schulte
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.)
Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and Components 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
Application filed by Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP1528031A1 publication Critical patent/EP1528031A1/fr
Application granted granted Critical
Publication of EP1528031B1 publication Critical patent/EP1528031B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B66D1/34—Attachment of ropes or cables to drums or barrels

Definitions

  • the invention relates to a releasable attachment of a rope to a cable drum according to the preamble of claim 1.
  • a fastening is from the GB 121 357 A known.
  • Guidelines and sizing of the attachment are set forth, for example, in Steel Iron Worksheet (SEB) 666211.
  • SEB Steel Iron Worksheet
  • the rope ends are usually annealed or wrapped with wire.
  • the pressed-on thickenings of the cable ends can transmit greater tensile forces on the drum with the same space requirements, as the most commonly used cable clamps with screw fastening to SEB 666211. Because fewer Befest Trenttec are needed than at Screw terminals, the press sleeves used allow for the same usable rope length overall shorter drum lengths, which makes a cost advantage and a cheaper space utilization possible. In addition, when using ferrules the assembly cost when attaching the cable end to the cable drum compared to the solution with screw clamp can be significantly reduced. Another advantage of the compression sleeve is the fact that you can recognize the correct, positive mounting widths and the risk of incorrectly tightened and, for example, by setting effects not permanently secured screws is excluded.
  • the DE 625 612 discloses a device for securing a cable end to a cable drum, in which an approximately C-shaped cable hook hooked into a keyhole-shaped slot in the cable drum and by turning 180 ° in the slot is determined.
  • the rope hook the rope is attached by means of a rope thimble.
  • the DE 687 945 discloses the attachment of a rope in a screwed to the cable drum mount by means of a Seilendverdickung.
  • the object of the invention is to provide a low effort and quickly detachable Seilendbefestist.
  • this Seilendbefestist should also be used on non-cast winding drums made of seamless or longitudinally welded pipes, without having to forego advantages of the known attachments of the cable ends on cast winding drums.
  • the attachment of the rope ends should also be possible with non-cast winding drum tubes when the drums are closed at their ends or inaccessible for other reasons inside.
  • connection piece is locked in the passage opening by the cable end thickening attached to the connection piece.
  • connection piece For attachment of the rope end, the connection piece is provided in its outwardly projecting region with an approximately tangential to the winding drum bore through which the cable is passed and to which the Seilendverdickung of the rope in the longitudinal direction of the cable is positively fixed according to a further feature of the invention.
  • the bore is stepped and has an annular bearing surface on which an end face of the rope end thickening rests positively.
  • the bore is slotted outwardly in its longitudinal extension in a width corresponding to the rope diameter, and the rope can be inserted from the outside into the fork-shaped slotted bore. This makes it possible to insert the Seilendverdickung directly into the mounting hole without having to pull the entire rope in full length through the mounting hole.
  • connection piece and passage opening are matched to one another in such a way that the connection piece can be inserted from outside into the passage opening and can be held in a form-fitting manner within the cable drum laterally of the passage opening.
  • This type of attachment allows a quick release of the fitting from the drum, without having to loosen screws and just as fast fastening the fitting to the drum from the outside, d. H. without the drum having to be accessible from the inside. Nevertheless, the connection between the cable end and the drum via the connector is extremely strong and reliable, even if winding drums made of steel tubes are used.
  • the Seilendverdickung can be formed in a conventional manner according to the invention by a arranged at the end of the rope compression sleeve.
  • These press sleeves are known in terms of their design and installation at the end of the rope, so they need not be further explained here.
  • the press sleeves used are dimensioned so that they transmit at least 85% of the minimum breaking force of the wire rope.
  • the transmissible cable tensile force is so great that according to the applicable calculation rules for such Seilendbefest Techen no reduction of the cable tensile force by friction on the drum tube is required.
  • This means that the number of fastening windings at the end of the drum can be limited to two turns to comply with the regulations. The two turns provide additional security with respect to the rope traction force that can be removed with this cable end attachment.
  • the thickened end of the rope in the bore of the fitting against slipping be ensured that on the thickened end of the rope opposite side of the connecting piece a clamping sleeve can be placed on the rope whose outer diameter is greater than the inner diameter of the bore.
  • this clamping sleeve is displaced on the rope in a flush manner against the connecting piece and is preferably pressed thereon.
  • the clamping ring Before replacing the wire rope in case of damage, the clamping ring must first be destroyed or forcibly moved. Only then can the rope end with the compression sleeve be removed from the connection piece.
  • the ropes used are therefore in addition to the compression sleeve also equipped with the loosely slid clamping ring, which is pushed in the same operation before crimping the compression sleeve over the rope end.
  • an angled tab with an eye for the rope is pushed onto the rope in such a way that in the installed position of the connector of a leg of the tab transverse to the rope between the thickened end of the rope and the connecting piece is positioned and the other angled leg of the tab engages transversely to the passage opening in this and the end face on the inside of the passage opening adjacent a levering of the connecting piece prevented.
  • the tab is preferably pushed before squeezing the compression sleeve and optionally after pushing the clamping sleeve on the rope and pressed with the thickened end against the connector, where it is held by the pressed from the other side against the fitting clamping sleeve.
  • the invention provides with little effort a fast detachable Seilendbefest Trent also on winding drums of seamless or longitudinally welded pipes.
  • a fast detachable Seilendbefest also on winding drums of seamless or longitudinally welded pipes.
  • In the wall of these tubes only a through hole for receiving the connection piece must be introduced, a hole that requires a minimum of effort, measured on a complex casting.
  • the attachment of the cable ends to the outwardly projecting connector is also possible if the winding drum is closed at their end faces or inaccessible in their interior for other reasons.
  • the FIG. 1 shows a cable with a cable drum 1 and a winding drum.
  • a rope 2 preferably wire rope is wound, which is acted upon by a cable tensile force S, resulting for example from a load to be lifted.
  • the cable drum 1 is rotatably mounted at its two opposite ends in a housing 3. At one longitudinal end of the cable drum 1, the cable end of the cable 2 is attached via a connecting piece 4 to the cable drum 1.
  • a concentric with the cable drum 1 and arranged with the along the longitudinal axis of the cable drum 1 as a result of winding and unwinding of the rope 2 migratory run-off point of the rope 2 of the cable drum 1 mitwandernder cable guide ring 5 is provided with a pressure roller 5a in the usual way in unloaded rope 2 (slack rope) a displacement of the rope 2 in the circumferential direction on the cable drum 1 is prevented.
  • the total length L of the cable is usually carried out as small as possible and is largely determined by the drum length L1, which is composed of the usable length L4, the dead length L2 in the highest load position and the dead length L3 in the lowest load position.
  • FIG. 2 shows a half-section through the cable drum 1 in the amount of Seilendbefest Trent with the connector 4 in the operating position.
  • the connector 4 is inserted into a through hole 1 a in the cable drum 1 and has the task, on the one hand to receive the end of the rope 2 with a Seilendverdickung 2a and on the other hand to transmit the rope forces with the cable drum 1 preferably in a form-fitting engagement.
  • the essentially hammerhead bolt-shaped connecting piece 4 is provided in its head region with two oppositely extending and radially extending projections 4c and 4d, which engage behind the inner edges of the through-hole 1a in the operating position when the connecting piece 4 is inserted in the through-hole 1a in the cable drum 1 and thus find positive fit in the passage opening 1a.
  • the projections 4c and 4d and the through hole 1a are dimensioned so that the projections 4c and 4d at opposite the longitudinal axis of the through hole 1a obliquely placed connector 4 through the through hole 1 a can be passed (see FIGS. 6a to 6e ), but in the operating position, a withdrawal of the connector 4 from the through hole 1 a prevent.
  • the longitudinal axis of the connecting piece 4 is aligned radially to the cable drum 1 or coaxial with the axis of the through hole 1a.
  • the end of the cable 2 is fastened to the region of the connecting piece 4 projecting outwardly from the passage opening 1a of the cable drum 1 in the operating line.
  • a Seilendverdickung 2a mounted in the form of a compression sleeve and on the other hand in the outstanding region of the connecting piece 4 in the operating position of the connecting piece 4 tangentially to the cable drum 1 extending bore 4b provided.
  • the bore 4b is formed stepped in the longitudinal direction and begins, seen from below, initially with a diameter which corresponds approximately to the diameter of the rope 2, and then widens stepwise to a diameter which corresponds approximately to the outer diameter of the compression sleeve of Seilendverdickung 2a. Due to the step-like diameter widening an annular bearing surface 4e for a corresponding end face 2c of the Essentially cylindrical Seilendverdickung 2a created over the then the cable forces S are introduced into the connector 4.
  • FIG. 3 which is a view U from above on the connector 4 after FIG. 2 shows, it can be seen that the side of the two diameter ranges of the bore 4b is followed by an outwardly open slot 4a.
  • This slot 4a is open away from the projections 4c and 4d of the connector 4.
  • the width of the slot 4a corresponds approximately to the diameter of the cable 2, so that the cable 2 does not have to be threaded through the hole 4b for mounting the Seilendbefest Trent, but can be pushed laterally through the slot 4a in the connector 4.
  • the cable 2 is then tightened accordingly through the bore 4b.
  • FIG. 4 is an end portion of the cable drum 1 without rope 2 from the region of the through hole 1 a shown. It can be seen that the passage opening 1a is formed as a cylindrical bore.
  • FIG. 4 A the the FIG. 4 corresponding end portion is in the FIG. 5 shown, but together with the rope 2 and the cable guide 5.
  • the cable guide 5 has a spring-loaded pressure roller 5a in the vicinity of the cable drain point 6, which presses radially on the rope 2 and the cable 2 in the cable groove 7 of the cable drum 1.
  • the turns of Seilendbefest Trent Within which the cable pull S degrades friction in the rope groove 7 according to the Eytelwein's equation. It is thus achieved that the residual cable pulling force remaining on the connecting piece 4 is only a part of the original cable pulling force S.
  • FIG. 5 is also a part of the frame 3 is shown, which prevents access to the interior of the cable drum 1. This shows the need to form the connector 4 so that it can be inserted from the outside into the through hole 1 a.
  • FIGS. 6a to 6e The insertion of the connecting piece 4 in the through hole 1 a is in FIGS. 6a to 6e shown in individual steps in the order of the installation process. Visible, the connecting piece 4 is tilted with its longitudinal axis relative to the longitudinal axis of the through hole 1a initially upwards to the upper radial projection 4c of the connector 4 through the through hole 1a to stick (see FIG. 6a ). Subsequently, the lower radial projection 4d passes through the through hole 1a (see FIG. 6b ).
  • the connector 4 is pivoted back in the direction of the axis of the through hole 1 a, whereby the projections 4 c and 4 d from the inside against the wall of the cable drum 1 create (see FIG. 6c ).
  • the rope 2 is laterally through the slot 4a (see FIG. 3 ) is inserted into the connecting piece 4 and then the compression sleeve 2 a pulled down into the extension of approximately tangent to the cable drum 1 bore 4 b. In order to fix the compression sleeve 2a in this position, (see FIG.
  • FIGS. 7a to 7c is in each case an enlarged detail of FIG. 2 shown from the region of the connecting piece 4.
  • FIGS. 8a to 8d different detail views of a connector 4 are shown in an alternative embodiment.
  • a Heraushebein of the connector 4 from the through hole 1 a by using a tab 8 is avoided here.
  • This tab 8 can also be used in addition.
  • the tab 8 is formed so that it rests against the upper inner edge of the through hole 1a and thereby prevents the connection piece 4 can be moved in the circumferential direction of the drum tube of the cable drum 1 upwards (see FIGS. 8a and 8d ).
  • the tab 8 is formed as an angle piece, which in the FIG. 8d clearly seen, which is a sectional view of FIG. 8c along the section line cc shows.
  • One of the two angles of the flap 8 is provided with an eye 10, which is pushed over the wire rope 2, before the compression sleeve 2a has been pressed.
  • the wire rope 2 is retracted with the pressed-compression sleeve 2 a in the bore 4 b in the connector 4, wherein the tab 8, as in the FIG. 8d recognizable with her upwardly angled leg in the passage opening 1a inserts and fixes the connector 4 against falling out.
  • the tab 8 as in the FIG. 8d recognizable with her upwardly angled leg in the passage opening 1a inserts and fixes the connector 4 against falling out.

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Claims (11)

  1. Fixation amovible d'un câble à un tambour à câble, notamment un câble métallique, ladite fixation comportant une ouverture de passage ménagée dans le tambour à câble, une extrémité de câble renflée au niveau du câble et une pièce de raccordement qui permet de fixer le câble, par son extrémité de câble renflée, de façon amovible au tambour à câble au niveau de l'ouverture de passage,
    la pièce de raccordement (4) étant fixée de façon amovible dans l'ouverture de passage (1 a) et l'extrémité de câble renflée (2a) étant fixée de façon amovible à la pièce de raccordement (4), caractérisée en ce que la pièce de raccordement (4) est verrouillée dans l'ouverture de passage (1 a) par l'extrémité de câble renflée (2a) fixée à la pièce de raccordement (4).
  2. Fixation amovible selon la revendication 1, caractérisée en ce que la pièce de raccordement (4) est insérée dans l'ouverture de passage (1 a) depuis l'extérieur et est maintenue par complémentarité de formes dans l'ouverture de passage (1 a), une partie de la pièce de raccordement (4) fait saillie de l'ouverture de passage (11) vers l'extérieur et l'extrémité de câble renflée (2a) est fixée par complémentarité de formes à la région saillante de la pièce de raccordement (4).
  3. Fixation amovible selon la revendication 1 ou 2, caractérisée en ce que la pièce de raccordement (4) est dotée, dans sa région saillante, d'un perçage (4b) qui s'étend à peu près tangentiellement au tambour à câble (1), à travers lequel le câble (2) peut être inséré et auquel l'extrémité de câble renflée (2a) du câble (2) peut être immobilisée par complémentarité de formes (4a) dans la direction longitudinale du câble.
  4. Fixation amovible selon la revendication 3, caractérisée en ce que le perçage (4b) est conformé en gradin et présente une surface d'appui annulaire (4e) sur laquelle une surface frontale (2c) de l'extrémité de câble renflée (2a) appuie avec complémentarité de formes.
  5. Fixation amovible selon la revendication 3 ou 4, caractérisée en ce que le perçage (4b) est doté, dans son extension longitudinale, d'une fente (4a) qui a une largeur qui correspond au diamètre du câble (2), et le câble (2) peut être introduit depuis l'extérieur dans le perçage (4b) fendu en forme de fourche.
  6. Fixation amovible selon l'une des revendications 1 à 5, caractérisée en ce que les dimensions de la pièce de raccordement (4) et de l'ouverture de passage (1 a) sont adaptées l'une à l'autre de sorte que la pièce de raccordement (4) peut être insérée dans l'ouverture de passage (1a) depuis l'extérieur et peut être maintenue par complémentarité de formes dans l'ouverture de passage (1 a) à l'intérieur du tambour à câble (1).
  7. Fixation amovible selon la revendication 6, caractérisée en ce que la pièce de raccordement (4) est dotée, au niveau de sa région passant à travers l'ouverture de passage (1 a) en direction de l'intérieur, d'au moins une saillie (4c, 4d) qui s'étend latéralement et radialement et peut être passée à travers l'ouverture de passage (1a) lorsque la pièce de raccordement (4) est placée obliquement par rapport à l'axe longitudinal de l'ouverture de passage (1 a) et qui empêche la pièce de raccordement (4) de sortir de l'ouverture de passage (1 a) lorsque la pièce de raccordement (4) est dans une position de fonctionnement dans laquelle la direction longitudinale de la pièce de raccordement (4) est orientée radialement par rapport au tambour à câble (1).
  8. Fixation amovible selon la revendication 7, caractérisée en ce que deux saillies opposées (4c, 4d) s'engagent en arrière de l'ouverture de passage (1a), lorsque l'on regarde depuis l'extérieur.
  9. Fixation amovible selon l'une des revendications 1 à 8, caractérisée en ce que l'extrémité de câble renflée (2a) du câble (2) est formée par un manchon de pressage placé à l'extrémité du câble (2).
  10. Fixation amovible selon l'une des revendications 1 à 9, caractérisée en ce que l'extrémité de câble renflée (2a) du câble (2) est immobilisée dans le perçage (4b) de la pièce de raccordement (4) pour l'empêcher de glisser et de sortir de sorte qu'un manchon de serrage (2b), avantageusement comprimable, dont le diamètre extérieur est supérieur au diamètre intérieur du perçage (4b), peut être placé sur le câble (2) du côté de la pièce de raccordement (4) qui est opposé à l'extrémité renflée (2a) du câble.
  11. Fixation amovible selon l'une des revendications 1 à 10, caractérisée en ce qu'une attache coudée (8) dotée d'un oeil (10) destiné au câble (2) est glissée sur le câble (2) de sorte que, lorsque la pièce de raccordement (4) est dans la position de fonctionnement, l'une des branches de l'attache (8) est positionnée transversalement au câble (2) entre l'extrémité de câble renflée (2a) et la pièce de raccordement (4) et l'autre branche coudée de l'attache (8) s'engage dans l'ouverture de passage (1 a) transversalement à celle-ci et empêche la pièce de raccordement (4) de s'échapper en portant frontalement contre le côté intérieur de l'ouverture de passage (1 a).
EP04024917A 2003-10-30 2004-10-20 Fixation démontable d' un câble à un tambour Not-in-force EP1528031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350942A DE10350942B3 (de) 2003-10-30 2003-10-30 Lösbare Befestigung eines Seiles an einer Seiltrommel
DE10350942 2003-10-30

Publications (2)

Publication Number Publication Date
EP1528031A1 EP1528031A1 (fr) 2005-05-04
EP1528031B1 true EP1528031B1 (fr) 2011-04-06

Family

ID=34399634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04024917A Not-in-force EP1528031B1 (fr) 2003-10-30 2004-10-20 Fixation démontable d' un câble à un tambour

Country Status (6)

Country Link
US (1) US7108248B2 (fr)
EP (1) EP1528031B1 (fr)
CN (1) CN100532247C (fr)
AT (1) ATE504538T1 (fr)
DE (2) DE10350942B3 (fr)
ES (1) ES2362276T3 (fr)

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Also Published As

Publication number Publication date
CN1611439A (zh) 2005-05-04
DE10350942B3 (de) 2005-06-02
US20050103921A1 (en) 2005-05-19
CN100532247C (zh) 2009-08-26
US7108248B2 (en) 2006-09-19
ATE504538T1 (de) 2011-04-15
EP1528031A1 (fr) 2005-05-04
DE502004012370D1 (de) 2011-05-19
ES2362276T3 (es) 2011-06-30

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