EP1975112A2 - Équipement pour empêcher la formation d'un câble mou sur un tambour d'enroulement - Google Patents

Équipement pour empêcher la formation d'un câble mou sur un tambour d'enroulement Download PDF

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Publication number
EP1975112A2
EP1975112A2 EP08152369A EP08152369A EP1975112A2 EP 1975112 A2 EP1975112 A2 EP 1975112A2 EP 08152369 A EP08152369 A EP 08152369A EP 08152369 A EP08152369 A EP 08152369A EP 1975112 A2 EP1975112 A2 EP 1975112A2
Authority
EP
European Patent Office
Prior art keywords
rope
rope drum
drum
guide ring
pressing roller
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.)
Withdrawn
Application number
EP08152369A
Other languages
German (de)
English (en)
Other versions
EP1975112A3 (fr
Inventor
Mikko Rahja
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.)
Kalmar Industries Oy AB
Original Assignee
Kalmar Industries Oy AB
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 Kalmar Industries Oy AB filed Critical Kalmar Industries Oy AB
Publication of EP1975112A2 publication Critical patent/EP1975112A2/fr
Publication of EP1975112A3 publication Critical patent/EP1975112A3/fr
Withdrawn legal-status Critical Current

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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
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • 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
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
    • 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
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
    • B66D2700/0191—Cable guiding during winding or paying out

Definitions

  • the present invention concerns equipment for preventing formation of a slack rope on a rope drum, which on its outer periphery has one or more spiral rope grooves extending around the rope drum, which rope groove/grooves extends/extend mainly over the entire axial length of the rope drum, and in connection with the rope drum a pressing roller is arranged, which is loaded flexibly against the rope drum and has an axis of rotation essentially in parallel with the rope drum's axis of rotation, and which pressing roller presses the rope to be rolled against the rope drum in order to keep the rope in the rope groove.
  • the invention is thus related to winches and rope drums, in which the rope is rolled up into the rope groove in the drum.
  • Such applications are typically rope drums of various hoisting equipment intended for different purposes.
  • hoisting equipment the intention is to design it in such a way that the angular deviation between the rope and the groove in the rope drum is kept under 4 degrees.
  • the rope is hereby guided properly into the rope groove, whereby it will not wear too much.
  • the pressing roller's diameter is shorter than the drum's diameter, it is a flexible and/or spring-suspended and bearing-mounted roller, which rotates around its axis, which is in parallel with the drum axis.
  • the rope can be rolled off the drum so that it can not become entangled.
  • the arrangement does not ensure that the rope is guided properly into the groove. Having left the drum, a rope which is starting upwards will not remain upright but will fall over to one side. If you are lucky, the falling direction is another than the next empty groove, and the rope can be guided into the proper groove. But if the direction is this worse side, the rope will fall into the gap between drum and pressing roller, whereby it will escape from its groove.
  • the invention according to the independent claims is mainly characterized in that in a rope groove next to the rope being rolled up on the rope drum a guide ring, guide link or other such is placed to roll against the rope drum in such a way that the rolling point of said guide ring, guide link or other such device on the rope drum is in the groove next to the rope being rolled up on the rope drum essentially in a plane extending through the axes of rotation of the pressing roller and the rope drum, whereby the rope being rolled up on the rope drum is guided and supported on one side by the rope layer already rolled up on the rope drum and on the opposite side by said guide ring, guide link or other such device.
  • the diameter of the guide ring is larger than the diameter of the pressing roller or, correspondingly, of the rope drum inside it, so that in between the guide ring or other such device and the pressing roller or, correspondingly, the rope drum a gap is left on the side opposite to the rolling point on the rope drum.
  • the cross section of the guide ring or other such device suitably has a profile similar to the rope groove formed in the rope drum with a typically semi-circular profile.
  • the profile of the guide ring or other such device is most suitably formed in such a way that the peripheral surface coming against the even outer surface of the pressing roller at the guide ring's rolling point on the rope drum is planar and, correspondingly, the rope drum's peripheral surface entering the rope groove is essentially of the same shape as the rope groove's profile.
  • the guide ring or other such device may be a rigid ring and made of a metal material, for example, of steel.
  • the guide ring may also be a flexible ring and its material may be, for example, rubber, plastic or some other such flexible material.
  • the guide ring may be formed by several interconnected parts, which are assembled in the form of a ring.
  • the guide ring may also consist of a profile using more than one rope groove.
  • a guide link When a guide link is used, it is a link having a figure-of-eight shape, which is mounted around both the pressing roller and the rope drum in such a way that its first link extends around the pressing roller and its second link extends around the rope drum.
  • Each link of the guide link having a figure-of-eight shape has a diameter, which is larger than that of the pressing roller and, correspondingly, of the rope drum inside it, so that a gap will remain between the concerned link and the pressing roller or, correspondingly, the rope drum on the side opposite to the rolling point on the rope drum.
  • the guide link is formed of a rope, a spring or other such of a flexible material that can be bent into a figure-of-eight shape as an endless link.
  • the solution according to the invention is simple and cheap. With simple steps it can be fitted and mounted afterwards in already existing rope drum solutions.
  • the invention is reliable in operation and it prevents the rope from becoming slack on the rope drum and guides it under mechanical control into the rope groove. There are very few moving parts, only one at the minimum, and there is little need for adjustment, almost no need at all. Other advantages and characteristic features of the invention will emerge hereinafter from the detailed description of the invention.
  • Rope drum 1 is provided with a spiral rope groove 2 located on its outer periphery and extending mainly over its entire axial length around the drum. Instead of one uniform rope groove 2 the rope drum may also have several separate rope grooves.
  • Rope drum 1 is bearing-mounted to rotate in a supporting body and it is provided with a suitable drive, with the aid of which the rope 3 is rolled up on the rope drum 1 into the rope groove 2.
  • the rope drum 1 is rotated in the opposite direction the rope 3 will be released from the rope drum 1.
  • a pressing roller 4 is arranged, which presses the rope 3 against rope drum 1 causing friction between the rope 3 and the rope drum 1 with the intention to prevent the rope 3 from slackening and to keep the rope 3 in the rope groove 2.
  • the pressing roller 4 has a diameter smaller than the rope drum 1 and it is a roller that is bearing-mounted to rotate and its axis of rotation is essentially in parallel with the axis of rotation of the rope drum 1.
  • the pressing roller 4 is mounted flexibly, for example, with the aid of the springs 5 shown in the figures, which springs 5 press the pressing roller 4 against rope drum 1 allowing rolling off of the rope 3 from the rope drum 1, without any possibility for the rope 3 to become entangled even in the very difficult situation shown in the figures, where rope 3 is leaving and begins rising upwards from the rope drum 1.
  • a guide ring 6, 7, 8 is placed to function as an endless rope.
  • the guide ring rolls in the adjacent groove 2 and functions like a rope layer on the other side.
  • the guide ring 6, 7, 8 guides the rope 3 into its own groove.
  • the pressing roller 4 presses this guide ring against rope drum 1 and the point of contact is always on the same line.
  • the guide ring is rolling in a rising groove remaining at all times in the groove next to the rope 3, which is rolling up/off.
  • the guide ring 6 has a diameter which is somewhat longer than the pressing roller 4, and it is mounted to rotate around the pressing roller's 4 axis of rotation.
  • Guide ring 6 is fitted in a groove next to the rope 3 rolling up on the rope drum 1. The guide ring 6 remains in this groove 2 all the time beside the rope 3, which is rolling up, and the pressing roller 4 is pressing it against the rope drum 1.
  • the rope groove 2 formed in rope drum 1 typically has a semi-circular profile, whereby the guide ring's 6 cross-section can preferably be circular or, in the embodiment of figures 1A and 1B , it may be formed planar at its inner periphery and round at its outer periphery.
  • the guide ring's 6 planar inner periphery will hereby come against the pressing roller's 4 even outer surface and the outer periphery with its round surface will travel in the rope drum's rope groove 2.
  • the guide ring 6 may of course also have some other such cross-section, which is suitable for rolling in the rope groove's 2 typically semi-circular profile.
  • Figures 2A and 2B show another embodiment of the solution according to the invention.
  • the guide ring 7 has a diameter, which is somewhat longer than the rope drum's 1 diameter, and it is mounted on top of the rope drum 1 to rotate around the rope drum's 1 axis of rotation.
  • the diameter of the guide ring 7 must be so much longer than the rope drum's 1 diameter that a gap is left between the guide ring 7 and the ridges of the rope drum's 1 rope grooves 2 located on the side opposite to the pressing roller 4, which gap allows the guide ring 7 to place itself freely on top of the rope drum 1 while the rope drum 1 is rotating.
  • Guide ring 7 is fitted in a rope groove 2 next to the rope 3 rolling up on the rope drum 1.
  • Guide ring 7 remains at all times in this groove 2 beside the rolling-up rope 3 as the pressing roller 4 is pressing it against rope drum 1.
  • guide ring 7 suitably has a circular cross-section or else this is such that it is well adapted for rolling in the rope groove's 2 typically semi-circular profile.
  • a suitable cross-sectional shape is such that the guide ring's 7 cross-section is semi-circular at its inner surface, that is, at its surface placed against rope groove 2, and planar at its outer surface, that is, at its surface placed against pressing roller 4.
  • the guide ring's 7 cross-section can also be some other, which is suitable for rolling in the rope groove's 2 typically semi-circular profile.
  • Guide ring 7, like the guide ring 6 according to Figures 1A and 1B may be formed of several interconnected parts, which are put together in the shape of a ring.
  • Figures 3A and 3B show one more embodiment.
  • the guide ring is replaced by a flexible and endless guide link 8, which is bended into a figure-of-eight shape, so that it extends in the manner of two guide rings around rope drum 1 on the one hand and around pressing roller 4 on the other hand, whereby each half of the guide link travels through the gap between pressing roller 4 and rope drum 1.
  • the guide link 8 is also in the solution of Figures 3A and 3B fitted in a groove next to the rope 3 rolling up on rope drum 1. As the link is bent into a figure-of-eight shape, it fills two adjacent grooves in the manner shown in Figure 3B .
  • Guide link 8 remains all the time in these grooves 2 beside the rolling up rope 3 as pressing roller 4 is pressing it against rope drum 1.
  • guide link 8 functions as a guide for rope 3, as the rope layer rolled up on the rope drum 1 and located on the other side of rope 3.
  • Guide link 8 may be formed, for example, of a rope, a spring or of some other flexible material, which can be bent into a figure-of-eight shape.
  • the endless guide link 8 uses two rope grooves 2 in the gap between rope drum 1 and pressing roller 4, as is clearly shown in Figure 3B .
  • the guide rings 6, 7 according to Figures 1A - 2B may consist of such a profile, which uses more than one rope groove 2.
  • These guide rings may also be formed of several interconnected parts.
  • the guide ring may be formed of a rigid material, such as steel or some other metal material, or of some flexible and/or bending material, for example, of rubber, plastic or other such.
  • a pressing roller 4 is arranged to roll against the rope drum 1.
  • the axes of rotation of rope drum 1 and pressing roller 4 are typically in parallel.
  • a guide ring 6, 7 or other such device is placed in a groove next to the rolling rope 3, which guide ring can be mounted either around pressing roller 4 or around rope drum 1, or instead there may be a guide link 8, which with a figure-of-eight shape travels around both pressing roller 4 and rope drum 1.
  • the guide ring 6, 7 has a diameter, which is somewhat longer than the pressing roller 4 or rope drum 1 located inside it.
  • the diameters of the guide link 8 with a figure-of-eight shape are longer than the pressing roller/rope drum located inside them.
  • the rolling point of guide ring 6, 7 or correspondingly of guide link 8 on the rope drum 1 is always in the rope groove or grooves 2 next to the rolling rope 3 in a plane extending through the axes of rotation of pressing roller 4 and rope drum 1.
  • guide ring/guide link 6, 7, 8 gets its guidance primarily from the sides of rope groove 2.
  • the guide ring/guide link 6, 7, 8 may also get guidance from the ridges of rope groove 2 instead of the sides of the groove.
  • the guide ring/guide link 6, 7, 8 guides the rope 3 into a rope groove 2 located in between itself and the rolled-up layer of rope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
EP08152369A 2007-03-29 2008-03-06 Équipement pour empêcher la formation d'un câble mou sur un tambour d'enroulement Withdrawn EP1975112A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20075203A FI118764B (fi) 2007-03-29 2007-03-29 Laitteisto löysän köyden muodostuksen estämiseksi köysirummulla

Publications (2)

Publication Number Publication Date
EP1975112A2 true EP1975112A2 (fr) 2008-10-01
EP1975112A3 EP1975112A3 (fr) 2009-12-30

Family

ID=37930113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08152369A Withdrawn EP1975112A3 (fr) 2007-03-29 2008-03-06 Équipement pour empêcher la formation d'un câble mou sur un tambour d'enroulement

Country Status (2)

Country Link
EP (1) EP1975112A3 (fr)
FI (1) FI118764B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106006428A (zh) * 2016-06-08 2016-10-12 太重（天津）滨海重型机械有限公司 起重设备及起重设备的进出绳装置
US20220185620A1 (en) * 2019-03-27 2022-06-16 Movecat GmbH Winch comprising a winding device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745615B (zh) * 2012-07-12 2015-08-12 中联重科股份有限公司 压绳装置及具有该压绳装置的起重机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800244C (de) 1948-10-10 1950-10-25 Bamag Meguin Akt Ges Seilandrueckrolle fuer Seiltrommeln zur Verhinderung von Seilverwicklungen bei Schlaffseilbildung
FR1128691A (fr) 1955-07-06 1957-01-09 Comp Generale Electricite Palan comportant un dispositif permettant d'éviter au câble de levage de foisonner sur le tambour dudit palan

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE363624A (fr) *
DE956441C (de) * 1955-04-02 1957-01-17 Stahl Maschinenfabrik R Seilwicklungsvorrichtungen fuer Seiltrommeln
SU712378A1 (ru) * 1978-07-25 1980-01-30 Dormidontov Anatolij A Лебедка
BG31401A1 (en) * 1980-12-26 1982-01-15 Tasev Rope guide for lifting mechanisms
US5482219A (en) * 1993-11-01 1996-01-09 Tcholakov; Stoil M. Rope guide for wire air or electric hoists

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800244C (de) 1948-10-10 1950-10-25 Bamag Meguin Akt Ges Seilandrueckrolle fuer Seiltrommeln zur Verhinderung von Seilverwicklungen bei Schlaffseilbildung
FR1128691A (fr) 1955-07-06 1957-01-09 Comp Generale Electricite Palan comportant un dispositif permettant d'éviter au câble de levage de foisonner sur le tambour dudit palan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106006428A (zh) * 2016-06-08 2016-10-12 太重（天津）滨海重型机械有限公司 起重设备及起重设备的进出绳装置
US20220185620A1 (en) * 2019-03-27 2022-06-16 Movecat GmbH Winch comprising a winding device

Also Published As

Publication number Publication date
EP1975112A3 (fr) 2009-12-30
FI20075203A0 (fi) 2007-03-29
FI118764B (fi) 2008-03-14

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