EP1491488B1 - Appareil de levage - Google Patents

Appareil de levage Download PDF

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Publication number
EP1491488B1
EP1491488B1 EP04013945A EP04013945A EP1491488B1 EP 1491488 B1 EP1491488 B1 EP 1491488B1 EP 04013945 A EP04013945 A EP 04013945A EP 04013945 A EP04013945 A EP 04013945A EP 1491488 B1 EP1491488 B1 EP 1491488B1
Authority
EP
European Patent Office
Prior art keywords
lifting
drum
load
lifting drum
belt
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.)
Expired - Lifetime
Application number
EP04013945A
Other languages
German (de)
English (en)
Other versions
EP1491488A1 (fr
Inventor
Franz Ehrenleitner
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.)
Eisenmann Anlagenbau GmbH and Co KG
Original Assignee
Eisenmann Anlagenbau GmbH and Co KG
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 Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Publication of EP1491488A1 publication Critical patent/EP1491488A1/fr
Application granted granted Critical
Publication of EP1491488B1 publication Critical patent/EP1491488B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B66D1/34—Attachment of ropes or cables to drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/26—Other details, e.g. housings

Definitions

  • Lifting devices that work with a hoist drum and at least one flexible traction device that can be wound onto this hoist drum are known in a wide variety of configurations.
  • Ropes, chains or belts are used in particular as traction means.
  • Belts have the advantage that they can be wound up in a particularly well-defined manner on the hoist drum and their carrying capacity is relatively large, but they remain sufficiently flexible. For this reason, enjoy with bands as traction hoists working with which The present invention also addresses increasing popularity.
  • a lifting device of this kind is for example from the EP 0 824 085 A1 known.
  • the band of this lifting device is fixed there by means of a clamping device which is fastened by screws to the lifting drum.
  • Object of the present invention is to provide a lifting device of the type mentioned in such a way that the band is exposed to a lower mechanical stress.
  • the invention is based on the following recognition:
  • the band which is fastened to the peripheral wall of the lifting drum is formed by the end of this band for the second turn in the place of this end, a step.
  • a step Between the underside of the first turn and the lateral surface therefore arises in the peripheral region which lies in front of the step, a void.
  • the tape under the action of a load, the tape is partially pressed into this void, thereby kinking at the step formed by the end of the tape. Under unfavorable conditions, this kink leads to an alternating stress on the strip, which shortens its service life.
  • inventively provided spacer elements pushing the tape is prevented in said space or at least reduced so that no or no unacceptably large kink arises at the level formed by the end of the tape and in this way the mechanical cycling is kept small.
  • the course of the thickness of spacer elements in the circumferential direction is adapted to the geometric shape of the intermediate space, so that therefore the band is supported in the circumferential direction everywhere by spacer elements.
  • This means that the thickness of the spacer elements must grow in that circumferential direction of the lifting drum, which is opposite to the direction of rotation of the lifting drum when lifting the load.
  • the spacer elements in the circumferential direction do not have to extend over the entire angular range in which there is a gap between the first turn and the lateral surface of the hoist drum. Rather, it is sufficient if the band is supported only over a certain distance from the spacer elements. It can bridge smaller spaces in a self-supporting manner.
  • the course of the thickness of the spacer elements in the circumferential direction does not need to correspond exactly to the geometric shape of the gap. It is important only that the average thickness of the spacer elements increases in that circumferential direction of the lifting drum, which is opposite to the direction of rotation of the lifting drum when lifting the load.
  • the spacer elements have a constant thickness. Although this then means that the tape either does not abut the spacer elements at all points or something is pushed towards the spacer elements to the inside. However, this is tolerable without damage to the tape.
  • the spacer elements are designed as steel sheets.
  • Lifting devices of the aforementioned type generally have a balance weight, which is supported by a band which is wound in a direction of rotation on the lifting drum, which is opposite to that direction of rotation in which the load-carrying belt is wound onto the lifting drum.
  • the size of the balance weight is chosen as equal to the load, so that the torques that exert the load on the one hand and the balance weight on the other hand on the hoist drum, compensate each other as well as possible. Then the torque to be contributed by the drive while lifting the load is correspondingly low.
  • the lifting device it is expedient if at least one spacer element is provided for the band carrying the balance weight on the lateral surface of the lifting drum.
  • the band of metal in particular steel.
  • total lifting device comprises a lifting drum 2, which in turn is rotatably mounted on bearing blocks 3, 4 on a mounting platform 5.
  • the lifting drum 2 can be rotated by means of an electric gear motor 6, which is also mounted on the mounting platform 5, in both directions.
  • the mounting platform 5 is arranged at a certain height above the room floor, for example with the aid of a steel structure, not shown for reasons of clarity.
  • a load shown schematically as a plate 7 is suspended on the hoist drum 2 via a steel band 8.
  • the steel strip 8 has for this purpose at its lower end a snap hook 9 which can be inserted into a lifting lug 10 of the load 7.
  • the upper end of the steel strip 8 is attached to the hoist drum 2. During the rotation of the lifting drum 2, so the steel strip 8 wound more or less in superimposed turns on the hoist drum 2 or, depending on the direction of rotation of this from.
  • a balance weight 11, which is also shown as a plate is connected via a lifting lug 12 with a snap hook 13, which at the lower end of a second on the lifting drum 2 wound steel strip 14 is attached.
  • the steel strip 14 is wound in the opposite sense as the load-bearing steel strip 8 to the hoist drum 2 and secured with its upper end to this.
  • the arrangement is obviously such that the balance weight 11 lowers when the load 7 is raised, and vice versa.
  • the balance weight 11 exerts on the hoist drum 2 a torque which is approximately opposite to the force exerted by the load 7 torque, so that the electric gear motor 6 when lifting the load 7 has to provide only a small amount of power.
  • FIG. 3 shows a section through the lifting drum 2 in that area in which the load-bearing steel strip 8 is wound.
  • FIG. 3 can be seen in particular, as with lifted load 7 (the in FIG. 3 not shown) several turns of the load-bearing steel strip 8 are wound on top of each other.
  • the steel strip 8 is with its upper end, which in FIG. 3 is provided with the reference numeral 15, fixed to the lateral surface of the lifting drum 2. This can be done, for example, by welding, screwing, riveting, gluing or the like. If it is ensured that the steel strip 8 is not completely unwound at any time, but the end 15 of the steel strip 8 can also be held by the overlying turns.
  • FIG. 3 makes it clear that due to the non-negligible thickness of the steel strip 8 between the lower surface of the first turn and the lateral surface of the hoist drum 2, a void 16 is formed.
  • a void 16 is formed in order to prevent the first turn of the steel strip 8 from being pressed into this empty space 16 under the influence of the load, and in this way creating a kink at the step formed by the end 15 of the steel strip 8, there are three circular arc-shaped spaces in this empty space 16 curved pieces of sheet metal 17a, 17b, 17c inserted, which serve as spacers.
  • These sheet metal pieces 17a, 17b, 17c have in the illustrated embodiment constant thickness, but can also be adapted as fittings adapted to the changing distance between the bottom of the first turn of the steel strip 8 and the lateral surface of the drum 2.
  • the spacers 17a, 17b, 17c abut in the circumferential direction directly to each other.
  • Your thickness is increasing FIG. 3 in the clockwise direction, ie in the direction of the step at the end 15 of the steel strip 8 to. It is in FIG. 3 good to see how in this way for the lowermost turn of the steel strip 8, on which all other turns of the steel strip 8 build, a good contact surface is formed, which prevents excessive bending stresses of the steel strip 8.
  • spacers 17a, 17b, 17c are provided.
  • the number and angular extent can be determined experimentally so that the lowermost turn of the steel strip 8 is not pressed into the empty space 16 in an inadmissible manner.
  • FIG. 4 shows a section through the hoist drum 102 of a second embodiment of a lifting device. This second embodiment differs from the first, based on the FIGS. 1 to 3 described only slightly, so that corresponding parts are marked with the same reference numerals plus 100.
  • FIGS. 1 to 3 only a single load-bearing steel strip 8 is used, while in the embodiment of FIG. 4
  • two steel bands 108a, 108b are used, which lie directly on top of each other when winding on the hoist drum 202.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Noodles (AREA)
  • Advancing Webs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (6)

  1. Dispositif de levage pour soulever et abaisser une charge comprenant
    a) un tambour de levage (2 ; 102) ;
    b) un entraînement permettant de faire tourner le tambour de levage (2 ; 102) dans les deux sens ;
    c) au moins un ruban (8; 108a, 108b) faisant fonction de moyen de traction, qui est fixé par une extrémité au tambour de levage (2 ; 102) et porte à l'autre extrémité un dispositif de fixation (9) pour la charge (7), sachant
    d) qu'en faisant tourner le tambour de levage (2 ; 102), le ruban (8; 108a, 108b) peut s'enrouler autour de celui-ci de telle sorte que les tours se superposent les uns aux autres,
    caractérisé en ce que
    e) sur la paroi périphérique du tambour de levage (2 ; 102), plusieurs éléments d'écartement (17a, 17b, 17c ; 117a, 117b, 117c) sont disposés côte à côte dans la direction du pourtour du tambour de levage (2 ; 102), contre lesquels est appliqué le premier tour du ruban (8 ; 108a, 108b), et
    f) l'épaisseur moyenne des éléments d'écartement (17a, 17b, 17c ; 117a, 117b, 117c) augmente dans le sens du pourtour du tambour de levage (2 ; 102) qui est opposé au sens dans lequel ledit tambour de levage (2 ; 102) tourne pour soulever une charge (7).
  2. Dispositif de levage selon la revendication 1, caractérisé en ce que les éléments d'écartement (17a, 17b, 17c ; 117a, 117b, 117c) présentent une épaisseur constante.
  3. Dispositif de levage selon la revendication 1 ou 2, caractérisé en ce qu'au moins un élément d'écartement (17a, 17b, 17c ; 117a, 117b, 117c) est une tôle d'acier.
  4. Dispositif de levage selon l'une des revendications précédentes, caractérisé en ce que sont prévus plusieurs rubans (108a, 108b) pouvant être enroulés autour du tambour de levage (102) en se superposant les uns aux autres.
  5. Dispositif de levage selon l'une des revendications précédentes, sur lequel est prévu un contrepoids (11) qui est porté par un ruban (14) pouvant être enroulé autour du tambour de levage (2) dans le sens inverse au sens dans lequel le ruban (8) portant la charge (7) peut être enroulé autour du tambour de levage (2), caractérisé en ce qu'au moins un élément d'écartement est également prévu sur la surface latérale du tambour de levage (2) pour le ruban (14) portant le contrepoids (11).
  6. Dispositif de levage selon l'une des revendications précédentes, caractérisé en ce que le ruban (8 ; 108a, 108b) est en métal, notamment en acier.
EP04013945A 2003-06-25 2004-06-15 Appareil de levage Expired - Lifetime EP1491488B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328486A DE10328486B4 (de) 2003-06-25 2003-06-25 Hubvorrichtung
DE10328486 2003-06-25

Publications (2)

Publication Number Publication Date
EP1491488A1 EP1491488A1 (fr) 2004-12-29
EP1491488B1 true EP1491488B1 (fr) 2008-05-21

Family

ID=33394971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013945A Expired - Lifetime EP1491488B1 (fr) 2003-06-25 2004-06-15 Appareil de levage

Country Status (6)

Country Link
US (1) US7025334B2 (fr)
EP (1) EP1491488B1 (fr)
CN (1) CN100526198C (fr)
AT (1) ATE396140T1 (fr)
DE (2) DE10328486B4 (fr)
ES (1) ES2305619T3 (fr)

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Publication number Priority date Publication date Assignee Title
DE10237873B3 (de) * 2002-08-19 2004-03-25 Siemens Ag Gewichtsausgleichsvorrichtung
US7150449B1 (en) * 2005-05-23 2006-12-19 V-Bro Products Llc Overhead storage system
FR2897048B1 (fr) * 2006-02-06 2009-03-20 Jean Marc Baggio Mecanisme de traction a demultiplication variable utilisant des poulies en spirale
US7850146B2 (en) * 2008-06-13 2010-12-14 Production Resource Group, Llc Lineset winch with braking parts
US8151032B2 (en) * 2008-06-26 2012-04-03 Microsoft Corporation Direct memory access filter for virtualized operating systems
IT1393916B1 (it) * 2009-05-11 2012-05-17 Nardini Albero e sistema per la movimentazione di carichi.
US8056883B1 (en) 2009-05-04 2011-11-15 Scott Brockie Manual storage lift system
US9909713B1 (en) 2014-05-01 2018-03-06 Brock Lift, LLC Garage lift system
US20160167922A1 (en) * 2014-12-10 2016-06-16 Duallift Gmbh Service lift
CN106315440A (zh) * 2015-07-11 2017-01-11 云南名家智能设备股份有限公司 钢带式提升卷筒
CN106744418B (zh) * 2016-12-31 2019-08-06 重庆大学 用于户外巨型墙幕系统中的缠绕式自平衡上下对开机构
CN110116933A (zh) * 2019-05-17 2019-08-13 嘉兴宜鸿贸易有限公司 一种led防爆灯
CN110655002A (zh) * 2019-09-27 2020-01-07 无锡市通用机械厂有限公司 一种压滤机清洗机构卷绳结构
JP2021075369A (ja) * 2019-11-11 2021-05-20 株式会社ダイフク 昇降装置
CN112978585B (zh) * 2021-02-24 2022-04-26 殷智勇 一种电子管自配重吊装平台设备

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DE3407504C2 (de) * 1984-03-01 1986-06-05 R. Stahl Fördertechnik GmbH, 7118 Künzelsau Vorrichtung zum spiralförmigen Aufwickeln des bandförmigen Tragmittels eines Hebezeuges
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Also Published As

Publication number Publication date
CN100526198C (zh) 2009-08-12
DE502004007200D1 (de) 2008-07-03
ES2305619T3 (es) 2008-11-01
CN1576226A (zh) 2005-02-09
US7025334B2 (en) 2006-04-11
DE10328486B4 (de) 2007-03-01
ATE396140T1 (de) 2008-06-15
DE10328486A1 (de) 2005-01-20
US20050023512A1 (en) 2005-02-03
EP1491488A1 (fr) 2004-12-29

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