EP1232113B1 - Dispositif d'equilibrage d'efforts pour un treuil a deux cables de traction et treuil muni d'un tel dispositif - Google Patents

Dispositif d'equilibrage d'efforts pour un treuil a deux cables de traction et treuil muni d'un tel dispositif Download PDF

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Publication number
EP1232113B1
EP1232113B1 EP00969150A EP00969150A EP1232113B1 EP 1232113 B1 EP1232113 B1 EP 1232113B1 EP 00969150 A EP00969150 A EP 00969150A EP 00969150 A EP00969150 A EP 00969150A EP 1232113 B1 EP1232113 B1 EP 1232113B1
Authority
EP
European Patent Office
Prior art keywords
winch according
cables
winch
winding means
housings
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
EP00969150A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1232113A1 (fr
Inventor
Andrzej Wacinski
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.)
Plumettaz SA
Original Assignee
Plumettaz SA
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 Plumettaz SA filed Critical Plumettaz SA
Publication of EP1232113A1 publication Critical patent/EP1232113A1/fr
Application granted granted Critical
Publication of EP1232113B1 publication Critical patent/EP1232113B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32—Hoisting devices; Safety devices
    • 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
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
    • 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
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • 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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/605—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes scaffolding winshes

Definitions

  • the present invention relates to a winch provided with a device for balancing tensile forces, particularly intended for wind, respectively unwind two cables of traction or more, as well as nacelle fitted with at least one winch as above.
  • winches comprising in particular a double means winding, drums or pulleys, each of said means carrying its own cable, find many applications. Particularly for certain configurations, they are used for elevators or more particularly for nacelles responsible for cleaning and / or maintaining the facades of tall buildings.
  • a nacelle is generally supported by four cables, one first pair of cables being arranged on a first narrow side of the nacelle while the second pair of cables is placed on the second narrow side of the nacelle.
  • Each pair of cables is wound / unwound from a winch with two drums, each winch with its own motor controlled independently of the other.
  • each winch The winding / unwinding speed adjustment of each winch is done therefore by mechanical, electrical or electronic means known to so that each pair of cables unrolls or winds itself speed so that the basket remains horizontal.
  • the means mentioned cannot be implemented to keep their balance.
  • An imbalance between the two cables of a pair can occur for example in the case of a winding irregular of one of the cables on its drum, leading to a winding subsequent turns on a diameter larger than that around which wraps the other cable.
  • the cable winding on a stronger diameter will tend to take up all the tensile force, which can lead to an imbalance in the nacelle, or even to endangering the personnel mounted in this nacelle by rupture of this overloaded cable.
  • a first mechanical means to maintain a identical tensile stress on the two cables of the same pair, even if one of the cables is wound incorrectly, consists of join the two cables on a pulley.
  • Such a device can be dangerous in case of breakage of one of the cables since then the other cable becomes free and the basket is no longer retained by any of the two cables.
  • the two cables are attached to the two ends of a lifting beam, the center of this being fixed so swivel to the suspension beam or to the nacelle.
  • This device does not does not meet the aforementioned drawback, but on the other hand the difference in admissible length between the two cables is limited by the length of the lifter.
  • FR-A-2.183.594 describes a differential device for a crane lifting winch. By this device, the operator controls sequentially, and not simultaneously, a lifting operation and a telescoping operation of the masts. It is only indicated nowhere in this document does the device allow simultaneous actuation of two drums.
  • WO88 / 05999 describes a differential device making it possible to balance the forces on two tow cables for a trawl.
  • the document expressly describes that the trawl launching and lifting operations are carried out without the use of the differential device, which is only activated during the fishing, either when the winches are inactive.
  • An object of the invention is to propose a winch intended for at least one pair of traction cables fitted with at least one device balancing force capable of ensuring the security of the object at all times hanging on cables.
  • Yet another object of the invention is to provide a nacelle of maintenance of facade provided with at least one winch equipped with a device balancing of efforts.
  • FIGs 1 and 2 we have a building 1 with a facade vertical 10 and a roof 11, shown here as being a flat roof.
  • Building 1 is equipped with an installation 2 for cleaning / maintenance of the facade 10 comprising a nacelle 20 suspended by a first pair of cables 21 and a second pair of cables 22 with two beams support 23 and 24 mounted on a frame 25; preferably suitable for move on the roof 11, so that the basket 20 can reach the entire facade 10.
  • the nacelle 20 shown here comprises in particular two faces ends 20A and 20B each carrying a winch 3 for raising, respectively lower the nacelle 20 along the facade 10.
  • the first winch 3 comprises in particular a first motor 30, preferably a electric motor, a first reducer 31, as well as two drums 32 and 33, mounted coaxially on the wall 20A, while the second winch includes a second motor 34, a second reducer 35 and two other drums 36 and 37, mounted coaxially on the wall 20B.
  • Both drums 32 and 33 of the first winch each receive a cable 210, respectively 211 of the first pair of cables 21 while the two drums 36 and 37 each receive a cable 220, respectively 221 of the second pair of cables 22.
  • the free ends of the cables 210 and 211 of the first pair 21 are fixed, preferably so removable, on beam 23 while the free ends of cables 220 and 221 are fixed in the same way to the beam 24.
  • a control unit 38 supplies and controls each of the motors 30 and 34.
  • the basket can still include two units complementary, shown schematically in 39, capable of filling one or more of the following functions: passage of cables 210, 211 and 220, 221 distributed along an axis parallel to the axis of rotation of the drums, as shown in Figure 1 in the space between the drums and the units 39, in a configuration where each pair of cables is arranged in a plane perpendicular to the axis mentioned above, as seen on the Figure 2, or then, for another embodiment of the nacelle not represented in the figures, in a plane parallel to said axis, in the portion located between unit 39 and beam 24, slicing of each cable on its drum and safety brake, blocking the cable (s) when a cable break is detected.
  • These different means are known in the art and are therefore not described in more detail here.
  • Uneven winding of one or more of the above cables on one or more of the drums mentioned may lead to a imbalance in load distribution between cables 210 and 211 or 220 and 221 or an imbalance in platform 20 corresponding to a angular offset around the longitudinal roll axis R or at a angular offset around the transverse pitch axis T, or a combination of these two offsets.
  • this offset can be compensated by acting on the relative speeds of the two motors 30 and 34, either by means automatic detection of said offset, either manually by through the control unit 38.
  • the balancing device consists of a three-axis mechanical differential gearbox, as for example the planetary gear train 4, as shown on the Figures 3 and 4.
  • the device 4 comprises an input shaft 40, actuated directly by the motor 30 or 34 or by the reducer 31 or 35, depending on needs.
  • a solar wheel 41 is fixedly mounted on the shaft 40.
  • One or more planetary wheels 42 mesh on the one hand with the sun wheel 41 and on the other hand on an outer ring 43 with teeth interior.
  • the crown 43 carries the drum 32 or 36 suitable for a lifting system.
  • Each of the planetary wheels 42 is mounted with pivotally on an axis 420, said axes being fixed to a flange 44 in free pivoting around the end of the shaft 40.
  • the flange 44 carries the drum 33 or 37.
  • the tensile load balancing device 4 operates from the following way, in the case where the two cables of a pair exercise the same tensile force on the two drums, respectively as identical couples are exerted, the two drums are put in rotation, in opposite directions, with the rotation of the shaft 40, therefore raising or lowering the nacelle according to the direction of rotation of the shaft 40.
  • one of the cables is wound according to a diameter different from the other, making the effort exerted on a cable more important that the force exerted on the other cable, the drum on which is the most taut cable is blocked, causing movement performed by the other drum continues until the difference effort is caught and that the efforts exerted on the two cables are again substantially identical.
  • FIG. 5 A second embodiment of a balancing device according to the invention is shown in Figures 5 and 6.
  • This device which is also a three-axis mechanical differential gearbox, corresponds essentially a trochoidal (cycloidal) reducer known as "Cyclo" (registered trademark), including a particular form of execution is described in EP-0.291.052.
  • This device 5 comprises an input shaft 50, coming as the shaft 40 of the previous device directly from the drive motor or an intermediate reducer.
  • the shaft 50 includes a bearing eccentric cylindrical 51 fixed on the shaft. Eccentric reach results in eccentric rotation a toothed wheel 52 carrying a central bore cylindrical 520, or suitable means of rotation, mounted on the eccentric bearing 51, an external toothing 521, including a shape particular execution will be described more precisely below, thus that a plurality of circular bores 522 regularly spaced on a diameter coaxial with the central bore 520 and the toothing 521.
  • the device 5 further comprises an outer ring 53 with inner teeth 530, a particular embodiment of which will also be described below, partially meshing with the toothing 521 of the wheel 52.
  • a flange 54 is mounted to pivot freely on the shaft 50, carrying a plurality protruding rods 540, each corresponding to a bore 522 of the wheel 52. It can be seen in the figure that the bores 522 have a larger diameter larger than that of the stems 540; actually this bores / rods device is responsible for transmitting the eccentric rotary motion of the wheel 52 in a rotational movement centered on the shaft 50 of the flange 54. For this, the diameter of a bore 522 equals the diameter of a rod 540 plus the offset value of wheel 52.
  • the outer crown carries the drum 32 or 36, carrying respectively the cable 210 or 220 while the flange 54 carries the drum 33 or 37 carrying respectively the cable 211 or 221.
  • Figure 7 shows a preferred embodiment of a portion of the device which has just been described, showing the meshing of the wheel 52 on the crown 53.
  • the crown 53 carries a plurality of semi-cylindrical housing 531, each carrying a roller 532 in free rotation in said housing 531.
  • the crown 53 includes twenty housings 531 and as many rollers 532.
  • the eccentric wheel 52 carries on its periphery a plurality of housings semi-cylindrical 523, the number of said cylindrical housings being here one unit lower than the number of rollers 532.
  • An advantage of a differential trochoidal balancing device according to this second described embodiment, relative to that planetary according to the first embodiment described, is that the ratio of drum speeds relative to shaft speed much larger, making it possible with a trochoidal balancing device according to this second form of execution, to refrain from placing a speed reducer 31 or 35 between the motor and the input shaft 50 of the balancing device.
  • a balancing device trochoidal differential can be considered; for example we can have a difference between the number of rollers 532 and the number of housings 523 on the wheel 52 larger than a unit, for example two or three units.
  • the external toothing 521 of the wheel 52 and the internal toothing 530 of the crown 53 may be different from what has been described here, we can have teeth 521 and 530 conventional, one or more teeth being simultaneously engaged.
  • the trochoidal differential balancing device can still be constructed like that described in document EP-0.291.052, comprising several wheels 52 in parallel, eccentrically offset, so as to distribute the forces more smoothly and evenly.
  • reducers can also be provided for function as a balancing device.
  • a reducer of registered trademark Harmonic Drive or more generally a reducer differential mechanics as found on a car could very well fulfill the desired function of balancing the tensile forces.
  • any differential mechanical reducer mounted between the two drums could be used as a medium balancing.
  • a three-axis reducer will be used to reasons of compactness of the device.
  • a balancing device can be supplemented with a decoupling means, for example a ratchet means, allowing for example to easily unwind the cables from their drums when the nacelle is earth, in order to hang them on the suspension beams.
  • a decoupling means for example a ratchet means
  • a balancing device can also be used on a winch fitted with two grip pulleys rather than two drums; preferably adhesion pulleys will then be provided with known means allowing to adhere the cable to a portion of the periphery of the pulley.
  • the nacelle described above and shown in the figures is designed with the four cables each attached to a corner of the nacelle, other cable fixing configurations can also be envisaged, for example the four cables aligned in a plane containing the longitudinal axis of the nacelle.
  • the nacelle has also been described so that the winches 3 are there. board; we might as well have a facility where both winches 3 are arranged outside the nacelle, for example on the structure 25 carrying the beams 23 and 24 or directly on these beams.
  • a single winch operated by a single motor, the motor axis supporting two sets of drums, each drum set comprising a balancing device according to one or the other of the embodiments described.
  • a single winch respectively a single drive shaft, may comprise several pairs of drums and / or grip wheels, each pair with its own balancing device.
  • the balancing device according to one or other of the forms of execution described, as well as the winch carrying such a device balancing have been described and shown for use with a maintenance nacelle for a building facade; but, both the device balancing that the winch can be used in many others applications.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)
  • Movable Scaffolding (AREA)
  • Jib Cranes (AREA)
  • Retarders (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Testing Of Balance (AREA)
  • Transmission Devices (AREA)
  • Catching Or Destruction (AREA)
  • Types And Forms Of Lifts (AREA)
EP00969150A 1999-11-23 2000-10-27 Dispositif d'equilibrage d'efforts pour un treuil a deux cables de traction et treuil muni d'un tel dispositif Expired - Lifetime EP1232113B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH213999 1999-11-23
CH213999 1999-11-23
PCT/CH2000/000576 WO2001038217A1 (fr) 1999-11-23 2000-10-27 Dispositif d'equilibrage d'efforts pour un treuil a deux cables de traction et treuil muni d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP1232113A1 EP1232113A1 (fr) 2002-08-21
EP1232113B1 true EP1232113B1 (fr) 2004-02-25

Family

ID=4226790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00969150A Expired - Lifetime EP1232113B1 (fr) 1999-11-23 2000-10-27 Dispositif d'equilibrage d'efforts pour un treuil a deux cables de traction et treuil muni d'un tel dispositif

Country Status (10)

Country Link
US (1) US6688582B1 (zh)
EP (1) EP1232113B1 (zh)
JP (1) JP5014545B2 (zh)
CN (1) CN1244487C (zh)
AT (1) ATE260220T1 (zh)
AU (1) AU7897200A (zh)
DE (1) DE60008576T2 (zh)
ES (1) ES2213613T3 (zh)
HK (1) HK1050352A1 (zh)
WO (1) WO2001038217A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3070045A1 (en) 2015-03-16 2016-09-21 Airbus Helicopters A winch system and a rotary-wing aircraft having such a winch system

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EP1351878B1 (fr) * 2001-01-18 2004-11-10 Plumettaz Sa Dispositif de freinage d'urgence pour un vehicule tracte ou assure par cables et vehicule muni d'un tel dispositif
JP5097347B2 (ja) * 2005-12-26 2012-12-12 オリンパスメディカルシステムズ株式会社 内視鏡および内視鏡システム
CN100368278C (zh) * 2005-12-30 2008-02-13 胡世璇 结构紧凑型液压绞车
CN100559044C (zh) * 2007-06-05 2009-11-11 唐志明 一种两级行星轮系传动的软起动装置
SG172867A1 (en) * 2009-01-08 2011-08-29 Daifuku Kk Vertically moving device
KR101023580B1 (ko) * 2010-07-15 2011-03-21 전병수 승강기 와이어로프 장력 자동 균등화 장치
CN104807658A (zh) * 2014-01-23 2015-07-29 烟台中集来福士海洋工程有限公司 大型锚机负荷试验方法
CN105502235A (zh) * 2015-11-19 2016-04-20 重庆市合川区盐井建筑工程有限公司 一种建筑设备吊篮
CN105712224A (zh) * 2016-03-31 2016-06-29 陈烨 可收折的大型实验设备吊装机构
CN105776093A (zh) * 2016-05-09 2016-07-20 艾和美 用于特种设备高处检测作业的双层安全吊篮
CN106284963B (zh) * 2016-08-26 2018-09-28 镇海建设集团有限公司 可快速调整平稳性的建筑吊篮及其使用方法
CN106284962B (zh) * 2016-08-26 2018-10-23 镇海建设集团有限公司 具有平稳性调整装置的建筑吊篮及其使用方法
CN108590150B (zh) * 2018-04-09 2020-04-10 重庆交通职业学院 建筑施工安全升降装置
CN108869674B (zh) * 2018-07-30 2019-12-24 燕山大学 差动减速装置
CN110107074A (zh) * 2019-05-31 2019-08-09 吴永福 一种用于墙外装修防止摇晃的吊拦
CN110921538A (zh) * 2019-12-23 2020-03-27 三一汽车起重机械有限公司 卷扬系统及起重机
KR102545581B1 (ko) * 2020-11-09 2023-06-20 조대진 레저용 로프 구동 장치
CN112337701A (zh) * 2020-11-10 2021-02-09 湖南九九智能环保股份有限公司 一种空域雾幕喷雾部件的升降装置及升降方法
CN113090033B (zh) * 2021-05-13 2022-08-05 重庆交通职业学院 一种钢绞线束用的芯棒牵引器的控制方法和装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3070045A1 (en) 2015-03-16 2016-09-21 Airbus Helicopters A winch system and a rotary-wing aircraft having such a winch system

Also Published As

Publication number Publication date
ES2213613T3 (es) 2004-09-01
CN1244487C (zh) 2006-03-08
ATE260220T1 (de) 2004-03-15
CN1391530A (zh) 2003-01-15
HK1050352A1 (en) 2003-06-20
US6688582B1 (en) 2004-02-10
EP1232113A1 (fr) 2002-08-21
AU7897200A (en) 2001-06-04
DE60008576D1 (de) 2004-04-01
WO2001038217A1 (fr) 2001-05-31
JP5014545B2 (ja) 2012-08-29
JP2003514739A (ja) 2003-04-22
DE60008576T2 (de) 2004-12-23

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