EP3124423A1 - Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur - Google Patents

Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur Download PDF

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Publication number
EP3124423A1
EP3124423A1 EP15178730.6A EP15178730A EP3124423A1 EP 3124423 A1 EP3124423 A1 EP 3124423A1 EP 15178730 A EP15178730 A EP 15178730A EP 3124423 A1 EP3124423 A1 EP 3124423A1
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EP
European Patent Office
Prior art keywords
support
support arm
suspension
arm
suspension device
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Withdrawn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
EP15178730.6A
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German (de)
English (en)
Inventor
Timo HILSDORF
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP15178730.6A priority Critical patent/EP3124423A1/fr
Publication of EP3124423A1 publication Critical patent/EP3124423A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension

Definitions

  • the present invention relates to a suspension device for a lift installation, by means of which suspension means, such as ropes or belts, which hold, for example, an elevator car or a counterweight, for example, can be fastened to a support structure or the elevator car.
  • suspension means such as ropes or belts, which hold, for example, an elevator car or a counterweight, for example, can be fastened to a support structure or the elevator car.
  • Elevator systems are typically used to carry persons or loads in the vertical direction, for example between floors of a building.
  • an elevator car is regularly provided, which by means of a drive unit, e.g. within an elevator shaft along one or more guide rails can be moved.
  • the elevator car is typically connected to the drive unit via suspension elements, so that the drive unit can move the elevator car held thereon by moving the suspension elements.
  • the drive unit has, for example, an electric motor which drives a traction sheave, which in turn drives the suspension element in the form of a belt or rope running over the traction sheave, whereby the elevator car held on the suspension means is moved.
  • a counterweight is additionally provided in the elevator system, which is held at or near an opposite end of the suspension element.
  • a plurality of support means are usually provided for safety reasons or for reasons of suitable load distribution in order to be able to hold and move the elevator car and / or the counterweight.
  • ends of the suspension elements are usually attached to a support structure of the elevator installation. Between these ends the suspension means hold the elevator car and / or the counterweight by e.g. slip underneath the entire component or be wrapped around attached deflecting discs.
  • the suspension elements may also be fastened with their ends to the elevator car and / or the counterweight and may be held in a looping manner in intermediate areas on one or more deflection rollers fastened to the support structure.
  • An attachment of the support means to the support structure of the elevator system or to the elevator car and / or the counterweight should meet several requirements.
  • the attachment should be able to safely and reliably support a force necessary to hold the elevator car and / or the counterweight ultimately on the vehicle
  • the attachment should be made mechanically stable suitable to transfer the maximum occurring forces without damage and possible wear on the support structure.
  • the attachment should be designed such that, for example, bending moments can be avoided or kept as low as possible on the support structure.
  • the attachment should also be designed to tolerate or compensate for changes that may occur during the operation of the elevator installation within the elevator installation. For example, in the course of operation of the elevator system, temperature fluctuations may occur, which among other things may lead to changes in the lengths of the suspension elements. Also, different mechanical stresses or different mechanical interpretations of the support means can cause individual or multiple support means change in length over time. The attachment should be able to provide despite such changes in length of support means for their reliable attachment to the support structure of the elevator system.
  • suspension device suspension apparatus for an elevator system which has been advantageously developed with respect to prior art suspension suspension devices.
  • there may be a need to improve options in the design of an elevator system that is, for example, in their design and / or a technical implementation of functionalities.
  • a suspension device for a lift installation has an at least two-stage luffing device which is designed to hold an elevator car of the elevator installation on a carrier structure via at least three suspension elements acting on the suspension device suspension device.
  • the at least two-stage luffing device comprises an elongate upper support arm and at least one elongated lower support arm (hereinafter referred to as "first lower support arm”), an upper attachment assembly and at least one lower attachment assembly (hereinafter referred to as "first lower attachment assembly").
  • first lower support arm On each of the first lower support arm, one of the support means is attached to lower holding points opposite each other with respect to the first lower attachment arrangement.
  • the upper attachment assembly is configured to secure the upper support arm to the support structure or an overlying another support arm such that the upper support arm can be rotated about an axis of the upper attachment assembly relative to the support structure and transverse to the axis on the upper support arm Acting forces can be transmitted via the upper mounting assembly ultimately to the support structure.
  • the lower attachment assembly is configured to secure the first lower support arm to a first upper support point on the upper support arm such that the first lower support arm can be rotated about an axis of the lower attachment assembly relative to the upper support arm and transverse to the axis the lower arm acting forces on the lower mounting assembly can be transferred to the upper arm.
  • a lateral distance between one of the lower support points and the lower mounting arrangement of the first lower support arm is in this case greater than a distance between the upper support point and the upper mounting arrangement of the upper support arm.
  • an elevator installation which has an elevator car, a support structure, at least three suspension elements and a suspension device suspension device according to an embodiment of the abovementioned first aspect of the invention.
  • the elevator car is held on the carrier structure via the suspension device suspension device and the suspension elements.
  • Such an imbalance can occur, for example, when the two suspension elements are unevenly elongated in the course of time due to a permanent load or when length changes occur, for example, due to temperature fluctuations.
  • the traction sheave of a driving means driving the support means may drive individual ones of the suspension means to different degrees, e.g. due to locally slightly varying diameters of the traction sheave, so that different changes in length may occur, at least in front and behind the traction sheave located portions of suspension elements.
  • a two-stage or multi-stage luffing device of a suspension device in such a way that one or more retaining arms forming lower levels of the luffing device are generally made longer than an overlying retaining arm to which these lower retaining arms are pivotally mounted are.
  • a distance between one of the holding points, on which the support means are mounted, and the fastening arrangement, by which the holding arm can pivot should be greater at the lower holding arm than a corresponding distance at an overlying upper holding arm.
  • the support means projected onto a plane orthogonal to the upper attachment assembly, are mounted side by side on one of the upper and lower support arms such that nearest adjacent support means are respectively attached to different, i.e. not attached to a same, the upper and lower retaining arms.
  • the upper and the at least one lower holding arm together with their holding points and fastening devices are preferably configured such that the Holding points attached support means can be attached next to each other and preferably parallel to each other on the luffing device of Tragstoffetzhfitvorraum.
  • the support means are not mounted in pairs adjacent to each other on a common support arm. Instead, a support means adjacent to a support means should be attached to another support arm.
  • first support means is mounted on the left of a first lower support arm
  • the right adjacent thereto adjacent second support means is not attached to the same lower support arm but to the upper support arm or a second lower support arm. Only one to the second support means right adjacent third support means should optionally be attached to the first lower support arm again.
  • the two arranged on the first lower support arm support means may extend in a common plane and at least one further of the support means extending in a plane offset to this common plane.
  • a pivoting plane, within which the first lower holding arm can pivot, and a pivoting plane, within which the upper holding arm and / or a second lower holding arm can pivot can be arranged offset to one another in the axial direction of the pivot axes.
  • the suspension means suspension device further comprises a second lower support arm and a second lower attachment arrangement.
  • each one of the support means is attached to opposite lower second breakpoints.
  • the second lower attachment assembly is configured to secure the second lower support arm to a second upper support point on the upper support arm such that the second lower support arm can be rotated about an axis of the second lower attachment assembly relative to the upper support arm and across Axis acting on the second lower support arm forces on the second lower mounting assembly can be transferred to the upper arm.
  • a distance between one of the second lower support points and the lower mounting arrangement of the second lower support arm is greater than a distance between the second upper support point and the upper mounting arrangement.
  • the suspension means suspension device has two lower support arms which are pivotally mounted on opposite sides of the upper mounting arrangement on the upper support arm. On both lower support arms, two support means are each held at opposite sides with respect to the respective lower attachment arrangement.
  • the two lower support arms are preferably both longer than the upper arm and optionally axially offset from each other held on this.
  • the four suspension arms held on the two support arms are alternately held on one and on the other lower support arm.
  • a pivoting plane, within which the first lower holding arm can pivot can hereby be arranged offset relative to a pivoting plane, within which the second lower holding arm can pivot.
  • multi-stage rocking devices are conceivable in which more than two lower support arms are provided, some of the lower support arms in turn attack on other overlying lower support arms. In this way, a number of support means to be supported can be increased.
  • suspension means attached to the first and / or optionally to the second lower support arm support means may be arranged symmetrically with respect to the first and second lower mounting arrangement.
  • a force distribution and / or a mechanical stress of the retaining arms can be designed uniformly in this way.
  • the support structure to which the luffing device is to be attached may comprise a guide rail for guiding the elevator car during a vertical movement.
  • the elevator installation of a guide rail provided therein has a double function in that the guide rail is intended to guide the elevator car during its vertical movement and on the other hand serves to be able to fasten the suspension means suspension device to it and thus to the elevator car. or the counterweight caused load on the attached suspension means and the suspension means suspension device.
  • This can be used to advantage that these forces are indeed introduced vertically acting on the guide rail, but due to the force caused by the Wippvorraum force equalization between different supporting elements acting thereon can be prevented that transverse to this vertically extending guide rail forces are introduced to the guide rail, thereby otherwise it would come to bending moments on the guide rail.
  • the suspension device suspension device can be attached to the support structure of the elevator installation, in particular on the guide rail. Alternatively or additionally, the suspension means suspension device can also be attached to the elevator car.
  • Fig. 1 schematically illustrates a structure of an elevator installation 1, in which a suspension device suspension device 3 according to the invention can be used for suspending suspension elements 5.
  • the elevator installation 1 has a car 7 and a counterweight 9, which can be moved vertically in opposite directions within a hoistway 11.
  • the car 7 and the counterweight 9 are held by means of several substantially mutually parallel support means 5.
  • a drive machine 13 in the form of an electric motor is also provided in the elevator shaft 11 in order to displace the support means 5 together with the car 7 and the counterweight 9 held thereon vertically.
  • the suspension elements 5 can be any types of resilient and flexible suspension elements, for example in the form of cables, straps or the like.
  • support means 5 can be designed as preferably sheathed steel cables or as a flat or V-ribbed belt.
  • the suspension elements 5 are fixed at their ends to counterweight-side fixing points 15 on a first support structure 17 within the elevator shaft 11 of the elevator installation 1. From there, the suspension elements 5 run vertically downwards and are deflected upwards against counterweight support rollers 19. Next, the support means 5 wrap around a traction sheave 21, which from the prime mover 13 can be driven. From there, the support means 5 again extend substantially vertically downwards to below the elevator car 7 arranged Kabinenumlenkrollen 23. Finally, the support means 5 then extend upward, where they in the top of the hoistway 11 near the ceiling by means of Tragstoffschhnaturevorides 3 at a second Carrier structure 25 of the elevator system 1 are held. The suspension means 5 are attached to a luffing device 31 (see in more detail in FIG Fig. 2-4 ), which is part of the suspension means 3 attached to the second support structure 25.
  • a luffing device 31 see in more detail in FIG Fig. 2-4
  • the second support structure 25 is formed here simultaneously as a guide rail 29, along which the car 7, guided by guide shoes 27, within the elevator shaft 11 can move up and down.
  • the guide rail 29 serving as a carrier structure 25 is fixed to walls of the elevator shaft 11.
  • the support structure 25 may be configured such that forces acting on it are at least partially transmitted to the walls of the elevator shaft 11.
  • the support structure 25 may also be designed such that it is self-supporting, that is to say that forces acting on it are deflected down to a base of the support structure 25 and thus the walls of the hoistway 11 are not loaded.
  • Fig. 2 illustrates essential components of in Fig. 1 illustrated elevator installation 1 according to the invention schematically in a perspective view. It can be seen that in the present example, four support means 5a, 5b, 5c, 5d are used to hold both the counterweight 9 and the car 7 and to move within the Auszugschachts.
  • the support means 5a, b, c, d are arranged substantially parallel to each other in parallel, successively arranged planes.
  • Each of the support means 5a, b, c, d is in this case attached with its two ends to a support structure 17 above the counterweight 9 and extends from this towards one of four counterweight support rollers 19, from there to one of four traction sheaves 21, from there down to a respective one of the car carrier rollers 23 and via intermediate tension rollers 24 and finally towards the suspension device suspension device 3.
  • the suspension means suspension device 3 which in Fig. 2 is shown only roughly schematically and in Fig. 3 is illustrated in more detail in plan view, in the example shown, a two-stage rocker 31.
  • This rocker device 31 has a holding arm structure with an upper holding arm 32 and two lower holding arms 34, 35.
  • the upper holding arm 32 is pivotally attached to the support structure 25 of the elevator installation 1 via an upper fastening arrangement 33.
  • the support structure 25 in the form of a guide rail 29 in the figures is indicated only schematically.
  • the two lower support arms 34, 35 are each pivotally mounted on opposite sides of the upper support arm 32 via a lower attachment assembly 36, 37. Respectively on opposite sides of the lower support arms 34, 35, the support means 5a, b, c, d are attached to respective support points 40.
  • the support means 5a, b, c, d as possible attached to the holding points 40 that they can rotate relative to the respective lower support arm 34, 35, so that the support means 5a, b, c, d can always be vertical, regardless of which orientation the respective lower holding arm 34, 35 is currently pivoted.
  • Fig. 3 illustrates details of an embodiment of the suspension means suspension device 3 of the present invention.
  • the rocker device 31 of the suspension means suspension device 3 is two-stage in this case and has a cross member serving as the upper support arm 32 and two transverse members serving as lower support arms 34, 35.
  • These transverse struts may for example each be a metal profile, for example in the form of a steel beam, and may be designed, in particular due to their dimensioning and materials used, the loads typically occurring in an elevator installation 1 for holding the elevator car 7 and / or the counterweight 9 in the frame a holder of the respective support means 5a, b, c, d to receive the support structure 25.
  • the carrier structure 25, which is also usually designed as a metal profile in the form of, for example, a guide rail 29, can be fastened to a wall of a hoistway 11 via screws or bolts 30.
  • the upper support arm 32 is fastened to the support structure 25 via a mounting arrangement 33.
  • the fastening arrangement 33 may be formed, for example, by means of a dry sliding bearing 38, wherein a part of the dry plain bearing 38 is fixedly connected to the upper support arm 32 and another, rotatable part of the dry sliding bearing 38 with the support structure 25 or an attacking on this support structure 25 intermediate structure (not illustrated) is firmly connected.
  • Each of the support means 5a, b, c, d is attached to one of the stops 40 at ends of the two lower support arms 34, 35.
  • the two lower holding arms 34, 35 are each one lower mounting assembly 36, 37 pivoted around.
  • Each of the mounting arrangements 36, 37 may be configured with a slide bearing and is connected in the illustrated example by means of a respective upper rod 44 with associated upper holding points 43 on the upper support arm 32.
  • the lower support arms 34, 35 are thus pivotally suspended overall both relative to the upper support arm 32 and relative to the second support structure 25.
  • the lower support arms 34, 35 may be pivotally attached to the upper support arm 32 in other ways.
  • Dimensions of the lower support arms 34, 35 and the upper support arm 32 and positions of the respective provided lower and upper breakpoints 40, 43 are here chosen such that a distance d 2 between one of the lower breakpoints 40 and the respective lower mounting assembly 36, 37 of a each of the lower support arms 34, 35 is larger than a distance d 1 between the upper support points 43 and the upper attachment assembly 33 of the upper support arm 32.
  • the lower support arms 34, 35 are generally longer than the upper support arm 32.
  • the two lower support arms 34, 35 Due to the large lengths of the lower support arms 34, 35 and the relatively small distance at which they are respectively attached to the upper support arm 32 at its upper support points 43, pivot tracks, along which the two lower support arms 34, 35 can pivot, in a plan view of the luffing device 31 (ie, projected onto a plane orthogonal to the pivot axes) overlap.
  • the two lower support arms 34, 35 do not block each other during the pivoting, but can pivot independently, they are, as in Fig. 4 represented, arranged in different pivot planes 53, 55.
  • an upper bar 44 holding the first lower holding arm 34 may be pivotally mounted on a front side of the upper holding arm 32
  • an upper bar 44 holding the second lower holding arm 35 may be pivotally mounted on a rear side of the upper holding arm 32
  • the two lower retaining arms 34, 35 fastened to these upper rods 44 via the respective lower fastening arrangement 36, 37 can indeed pivot in planes extending parallel to each other but offset in the axial direction.
  • each one of the support means 5a, b, c, d is pivotally mounted.
  • a lower rod 42 may be fastened to a dry sliding bearing 38 mounted in the lower holding point 40.
  • a support means holder 41 is attached, which holds the associated support means 5a, b, c, d.
  • forces F 1 , F 2 , F 3 , F 4 can act on the suspension elements 5a, b, c, whereby with the aid of the suspension element suspension device 3 forces imbalances within a suspension element arrangement of the elevator installation can be avoided or at least significantly reduced.
  • Such power imbalances may be e.g. occur when individual support means 5a, b, c, d e.g. experience different changes in length. Such changes in length may be a result of locally varying degrees of wear or manufacturing tolerances in a suspension. Also, slight variations e.g. in the diameter of support and deflection rollers 19, 23 and / or in particular of the traction sheave 21 can cause the support means 5a, b, c, d are not all displaced to the same extent during the process of the elevator car and thereby come to be compensated for power imbalances can.
  • Fig. 5 shows very schematically a rocker device 31 for a support means holding assembly 3 according to another embodiment.
  • the luffing device 31 is designed in three stages.
  • a main support arm 32 is pivotally attached via a mounting arrangement 33 to a support structure (not shown).
  • lower retaining arms 34, 35 are each pivotally held via lower fastening arrangements 36, 37.
  • further lower retaining arms 49a-d are in each case in turn held by further lower fastening arrangements 51 ad.
  • the further lower holding arms 49a-d each have a greater length than the associated lower lower holding arms 34, 35, so that their pivoting paths partially overlap laterally.
  • eight support means 5a-h are thus to be attached to this three-stage rocker.
  • adjacent ones of these carrying means 5a-h are respectively not arranged on a same further lower holding arm 51 but on different ones of the further lower holding arms 51.
  • suspension device suspension device 3 described herein can be modified in various variants, and in particular with features such as those in EP 1 508 545 A1 are described and should not be repeated in detail here, can be trained.
  • suspension devices suspension devices described therein features can be transferred in an analogous manner to a suspension means suspension device 3 according to embodiments of the invention described herein.
  • slack support detectors 47 may be provided on the suspension means suspension device for detecting sagging or sagging suspension means.
  • the support means 5 may be attached to the lower support arms 34, 35, 49 via a spring element 45 in order to cushion shocks, for example.
  • a locking device 57 or a Drehwinkelbegrenzer might be provided to temporarily fix the respective support arms, for example, during assembly of support means or to limit their rotation angle.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP15178730.6A 2015-07-28 2015-07-28 Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur Withdrawn EP3124423A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15178730.6A EP3124423A1 (fr) 2015-07-28 2015-07-28 Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15178730.6A EP3124423A1 (fr) 2015-07-28 2015-07-28 Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur

Publications (1)

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EP3124423A1 true EP3124423A1 (fr) 2017-02-01

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EP15178730.6A Withdrawn EP3124423A1 (fr) 2015-07-28 2015-07-28 Dispositif de suspension de support dote d'un dispositif a bascule a deux niveaux ayant des bras de retenus inferieurs longs pour un ascenseur

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EP (1) EP3124423A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4349760A1 (fr) * 2022-10-05 2024-04-10 TK Elevator Innovation and Operations GmbH Dispositif d'équilibrage pour moyens de suspension

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700587A (en) * 1927-09-30 1929-01-29 Westinghouse Electric & Mfg Co Cable equalizer for elevators
DE2209455A1 (de) * 1972-02-29 1973-09-06 Rudolf Dr Ing Vogel Vorrichtung zum befoerdern von lasten, z.b. der kabine eines aufzuges
SU502823A1 (ru) * 1972-12-25 1976-02-15 Могилевский Машиностроительный Институт Балансирна подвеска подъемника
EP1508545A1 (fr) 2003-08-12 2005-02-23 Inventio Ag Système d'ascenseur avec attache d'extrémité de câble dépendant de la charge
CN104370185A (zh) * 2013-08-12 2015-02-25 苏州博量传动设备有限公司 一种电梯用钢丝绳组的对称分布的四节点均力装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700587A (en) * 1927-09-30 1929-01-29 Westinghouse Electric & Mfg Co Cable equalizer for elevators
DE2209455A1 (de) * 1972-02-29 1973-09-06 Rudolf Dr Ing Vogel Vorrichtung zum befoerdern von lasten, z.b. der kabine eines aufzuges
SU502823A1 (ru) * 1972-12-25 1976-02-15 Могилевский Машиностроительный Институт Балансирна подвеска подъемника
EP1508545A1 (fr) 2003-08-12 2005-02-23 Inventio Ag Système d'ascenseur avec attache d'extrémité de câble dépendant de la charge
CN104370185A (zh) * 2013-08-12 2015-02-25 苏州博量传动设备有限公司 一种电梯用钢丝绳组的对称分布的四节点均力装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4349760A1 (fr) * 2022-10-05 2024-04-10 TK Elevator Innovation and Operations GmbH Dispositif d'équilibrage pour moyens de suspension

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