WO2003086937A1 - Driving grip device in elevator installations provided with independent drive and suspension means - Google Patents

Driving grip device in elevator installations provided with independent drive and suspension means Download PDF

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Publication number
WO2003086937A1
WO2003086937A1 PCT/FR2003/000236 FR0300236W WO03086937A1 WO 2003086937 A1 WO2003086937 A1 WO 2003086937A1 FR 0300236 W FR0300236 W FR 0300236W WO 03086937 A1 WO03086937 A1 WO 03086937A1
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WO
WIPO (PCT)
Prior art keywords
cables
lever
linear
tension
belts
Prior art date
Application number
PCT/FR2003/000236
Other languages
French (fr)
Other versions
WO2003086937A8 (en
Inventor
Serge Arnoult
Bernard Hautesserres
Original Assignee
Serge Arnoult
Bernard Hautesserres
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 Serge Arnoult, Bernard Hautesserres filed Critical Serge Arnoult
Priority to EP03717350A priority Critical patent/EP1567443B1/en
Priority to AU2003222337A priority patent/AU2003222337A1/en
Priority to DE60310448T priority patent/DE60310448D1/en
Publication of WO2003086937A1 publication Critical patent/WO2003086937A1/en
Publication of WO2003086937A8 publication Critical patent/WO2003086937A8/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes

Definitions

  • the present invention relates to a device for adhering the drive in elevator installations provided with drive means and suspension means independent of each other.
  • an elevator installation of this type which comprises an elevator car and a counterweight mounted movably in a sheath along respective guide rails, a motor which drives in rotation a traction sheave, at least one suspension cable to which the cabin and the counterweight are suspended, and a linear element for the movement drive of the cabin-counterweight system, such as chain, belt or cable, said linear element wrapping around the traction sheave, with a rubbing contact.
  • the motor must communicate to the linear drive element only a very strong tensile force reduced, only sufficient to cause the excess load of the cabin compared to the counterweight;
  • the engine can be less bulky and therefore be entirely housed in the residual space between the cabin and the adjoining wall of the duct;
  • the traction sheave can be made less resistant than that used so far and likewise, the cables can be thinner.
  • the initial tension of the cable or cables of the linear drive element of the cabin, applied during assembly is defined once and for all. It depends on the anchoring attachment points of the ends of this or these cables and on a certain extension of the cable or cables created by the fixing means used (threaded rod, spring).
  • This kinematic arrangement does not take into account the elastic elongation of the cable (s) caused during loading of the cabin, compaction of the building, variation in temperature, etc.)
  • the tension initially desired and defined varies, it modifies the tension ratio of the strands of cables on both sides of the pulley, until a critical differential which leads to the sliding of the cables on the traction sheave by loss of grip of the rotary drive of the cable (s) on the drive pulley. Said arrangement therefore does not function reliably over time.
  • the invention aims to remedy this drawback by proposing a device for adhering the drive in elevator installations provided with drive means and independent suspension means, characterized in that one end of the linear drive element of the cabin is connected to a fixed point and its other end, on the other side of the traction sheave, is fixed to an articulated mechanical assembly forming a lever and provided with a constant load, applying on it a constant tension T c while a tension T is applied on the other side of the pulley, so that the tension differential T - T c of the linear element on the one hand and other side of the pulley is less than a critical value ⁇ T Q determined by the configuration of the drive from which the linear element slides on the traction sheave.
  • the advantage of the device according to the invention is to subject the linear drive element to the mass load of the lever of the assembly articulated, which is defined as a function of said minimum adhesion value and which guarantees the adhesion of the cable in all situations of cabin load and fluctuations and aging of the elevator installation and building concerned.
  • the device is designed to satisfy the maximum values of the elongation of the cable up to a maximum limit value. It includes a sensor for measuring the elongation of the linear drive element, the operation of the elevator being authorized in a determined elongation zone of the linear element, this to ensure the safe operation of the elevator.
  • the adhesion of the linear element to the traction sheave which may consist of one or more cables or even of one or more flat or non-flat belts, varies according to the shape of the pulley grooves for receiving the cables or belts, the diameter of the pulley and the nature of the materials used for the cables or belts and the pulley and these parameters influence said load tension value of the linear drive element.
  • Said cables or belts of the linear drive element are advantageously connected by their aforementioned end to said mechanical assembly by means of an articulated assembly itself on the mechanical assembly so that they do not flex at their said end during of the movement of the mechanical assembly around its articulation to compensate for the fluctuations of the elevator installation.
  • This assembly may consist of a plate or plate articulated on the mechanical assembly, which in the case of several cables or belts for the linear element, further comprises a spring connected to the end of each of the cables or belts in view of '' balance the tensions of cables or belts at the same level on the plate of the mechanical assembly.
  • the result of this arrangement according to the invention is a device for adhering the linear element for driving the elevator car to the driving pulley, which is perfectly independent of the fluctuations in anchoring of the ends of the linear element, unlike the aforementioned conventional technique, and which provides a permanent characteristic of adhesion of the linear drive element to its drive pulley, whatever the fluctuations of the elevator, of the elongation of the linear element, and building movement in which the installation is mounted.
  • FIG. 1 is a schematic view of an installation of a driven elevator and independent suspension provided with the device according to the invention
  • Figure 2 is a perspective view and cross section of the traction sheave receiving the linear drive element;
  • Figure 3 is an enlarged view of the articulated mechanical assembly;
  • FIG. 4 is an enlarged view of the articulated plate of the mechanical assembly, to which is connected the linear drive element.
  • the elevator installation shown in FIG. 1 comprises a car 1 and a counterweight 3 which can move in a vertical sheath, respectively along car rails and counterweight rails, not shown.
  • the cabin 1 and the counterweight 3 are each suspended from a cable 5 ', only one of which is shown so as not to clutter the figures.
  • the counterweight 3 is generally chosen to balance the weight of the cabin 1 increased by the weight of half the maximum load that can be loaded in the cabin.
  • the elevator installation also includes a drive motor 7 which, in the illustrated embodiment, has been shown at the top of the shaft.
  • a traction sheave 9 On the motor shaft is wedged a traction sheave 9 which is rotated when the motor is running. On the traction sheave 9 is wound with a contact rubbing a linear drive element 5, such as two juxtaposed cables 5a, each received in a V-groove of the pulley ( Figure 2).
  • the suspension of the counterweight 3 has been shown on the left side of FIG. 1 and the drive of the cabin 1 on the right side.
  • the cabin carries in a median vertical plane two upper pulleys 11 and four lower pulleys 13.
  • the upper pulleys 11 are each arranged close to each side of the cabin and receive the suspension cable 5 ′ of the counterweight, which is fixed to the upper end of the sheath at 14, passes under the pulleys 11, is wound on a high deflection pulley 15 and is muffled on a counterweight pulley 17 to start again up to a high fixing point 19 of the sheath.
  • the lower pulleys 13 are arranged adjacent two by two, vertically and at a short distance from each other, on each side of the cabin. They receive the linear drive element 5 (with two steel cables 5a), which is fixed at the top of the sheath at 21, descends vertically from the left to start horizontally returning to the two upper lower pulleys 13, ascends vertically on the high traction sheave 9, rolls up on a semicircle and descends vertically to a low return pulley 23 at the bottom of the sheath, then goes back up to the horizontal return by the low lower pulleys 13 and goes back down to 'to an articulated mechanical assembly 25 to which it is connected by its end.
  • the linear drive element 5 with two steel cables 5a
  • the example shown shows a muffle drive case enabling the cabin tensile force to be halved.
  • the drive movement of the cabin is directly controlled, both upwards by the return of the linear drive element on the upper lower pulleys, and downhill by that of the lower lower pulleys.
  • the tension of the linear drive element on the right side of the pulley T c is imparted by the articulated mechanical assembly 25 described below and on the left side T by the variable load of the cabin.
  • T - T 0 must be less, preferably significantly less than a critical value ⁇ T 0 (TT c ⁇ T G ) from of which, for a given grip configuration of the cables 5a on the pulley 9, a function of the materials of the cables and of the pulley, of the winding of the cables on the pulley, of the slope of the grooves, etc., the cable risks slide on the pulley to a maximum value T ma ⁇ of T at the maximum cabin load.
  • the voltage T c is therefore determined by the above inequation, ⁇ T 0 and ⁇ m ___ being known
  • the mechanical assembly 25 is constituted by a lever 27, which is articulated at 29 by its end to a support base 31 fixed at sheath bottom and is provided at its other end with a mass 33 of weight determined.
  • the two cables 5a of the linear drive element are connected to an articulated plate 35, disposed close to the axis of articulation 29 of the lever, so as to tension them in the lever arm ratio of the lever 27 and in proportion of the weight of the end mass 33.
  • Each of the cables 5a is mounted passing through in the plate 35 and comprises a helical spring 37 at its end, applied under the underside of the plate 35.
  • the cables are applied on either side of the axis of the plate, equal distance from each other, one of the cables being shown in vertical dashed line in Figure 3.
  • the springs 37 are identical and their tension adjustment is made so that the plate 35 is horizontal and remains so during the lever travel due to fluctuations over time in the geometric dimensions of the elevator installation, the support building and cable extension.
  • An end-of-travel switch 39 is disposed under the lever 27 integral with the base 31. This switch 39 is intended to interrupt the operation of the elevator at an excessive movement of the lever 27, descending downward and signifying too great a fluctuation. detrimental to the operation of the installation.
  • the voltage T c on the cables 5a is distributed equivalent for each of them and it remains constant over time, unless the operation is cut off by the safety limit switch 39.
  • This tension T 0 is regulated by an adequate mass 33, possibly displaceable over the length of the lever, at a tension level for which, at a maximum load of the cabin determining Tmax, Tmax - T c ⁇ T 0 according to the above-mentioned inequality so that the cables do not slip on the traction sheave.
  • the mass of the lever can be supplemented by a jack connected to the lever and applied to the latter at a constant pressure.
  • the device may include a mass suspended at the end of the linear element.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The invention concerns a driving grip device in elevator installations provided with mutually independent drive and suspension means, characterized in that ends of the linear driving element (5) of the car (1) is connected to a fixed point (21) and its other end, on the other side of the traction sheave (9), is fixed to an articulated mechanical assembly (25) forming a lever and provided with a constant load (33), applying thereon a constant tension Tc, while a tension T is applied on the other side of the sheave, such that the tension differential T Tc of the linear element (5) on either side of the sheave (9) is less than a critical value ΔTo determined by the driving configuration as from which the linear element (5) slides over the traction sheave (9).

Description

DISPOSITIF D'ADHERENCE DE L'ENTRAINEMENT DANS LES INSTALLATIONS D'ASCENSEUR POURVUES DE MOYENS D'ENTRAINEMENT ET DE SUSPENSION INDEPENDANTS.DEVICE FOR ADHESION OF THE DRIVE IN ELEVATOR INSTALLATIONS PROVIDED WITH INDEPENDENT DRIVING AND SUSPENSION MEANS.
La présente invention concerne un dispositif d'adhérence de l'entraînement dans les installations d'ascenseur pourvues de moyens d'entraînement et de moyens de suspension indépendants les uns des autres.The present invention relates to a device for adhering the drive in elevator installations provided with drive means and suspension means independent of each other.
Par la demande de brevet français N° 00 11461, on connaît une installation d'ascenseur de ce type, qui comprend une cabine d'ascenseur et un contrepoids montés mobiles dans une gaine le long de rails de guidage respectifs, un moteur qui entraîne en rotation une poulie de traction, au moins un câble de suspension auquel sont suspendus la cabine et le contrepoids, et un élément linéaire pour l'entraînement en mouvement du système cabine-contrepoids, tel que chaîne, courroie ou câble, ledit élément linéaire s' enroulant autour de la poulie de traction, avec un contact frottant.By French patent application No. 00 11461, an elevator installation of this type is known, which comprises an elevator car and a counterweight mounted movably in a sheath along respective guide rails, a motor which drives in rotation a traction sheave, at least one suspension cable to which the cabin and the counterweight are suspended, and a linear element for the movement drive of the cabin-counterweight system, such as chain, belt or cable, said linear element wrapping around the traction sheave, with a rubbing contact.
Une telle installation d'ascenseur connue présente, par rapport aux installations classiques dans lesquelles les câbles de suspension servent également à entraîner en mouvement la cabine et le contrepoids, un certain nombre d'avantages importants, parmi lesquels :Compared to conventional installations in which the suspension cables also serve to drive the car and the counterweight in motion, such a known elevator installation has a number of important advantages, including:
- du fait que c'est le câble de suspension qui supporte le poids du système cabine-contrepoids et non l'élément linéaire d'entraînement, le moteur ne doit communiquer à l'élément linéaire d'entraînement qu'un effort de traction très réduit, seulement suffisant pour entraîner l'excédent de charge de la cabine par rapport au contrepoids ;- the fact that it is the suspension cable which supports the weight of the cabin-counterweight system and not the linear drive element, the motor must communicate to the linear drive element only a very strong tensile force reduced, only sufficient to cause the excess load of the cabin compared to the counterweight;
- on peut utiliser un moteur moins puissant que dans le cas des installations classiques et donc plus économique ;- one can use a motor less powerful than in the case of conventional installations and therefore more economical;
- en particulier, le moteur peut être moins volumineux et être de ce fait entièrement logé dans l'espace résiduel compris entre la cabine et la paroi contiguë de la gaine ;- In particular, the engine can be less bulky and therefore be entirely housed in the residual space between the cabin and the adjoining wall of the duct;
- la poulie de traction peut être conformée moins résistante que celle utilisée jusqu'à présent et de même, les câbles peuvent être plus fins.- the traction sheave can be made less resistant than that used so far and likewise, the cables can be thinner.
Les performances d'une telle installation d'ascenseur sont encore améliorées (cf. la demande de brevet français 01 05304) en ce qui concerne la puissance réduite du moteur, l'énergie électrique consommée et la résistance de la poulie de traction et de l'élément linéaire d'entraînement, en ce que l'un des éléments parmi le câble de suspension du contre-poids et l'élément linéaire d'entraînement est moufle, ce qui diminue dans le rapport de mouflage les efforts sur chacun des brins du câble de suspension du contrepoids ou de l'élément linéaire d'entraînement de la cabine, ledit élément linéaire d'entraînement étant fixé par ses deux extrémités à deux points d'ancrage fixes situés dans la gaine et de même pour le câble de suspension du contre-poids.The performance of such an elevator installation is further improved (cf. French patent application 01 05304) with regard to the reduced power of the motor, the electrical energy consumed and the resistance of the traction sheave and the 'element linear drive, in that one of the elements among the counterweight suspension cable and the linear drive element is muffle, which decreases in the hauling ratio the forces on each of the strands of the cable suspension of the counterweight or of the linear drive element of the cabin, said linear drive element being fixed by its two ends to two fixed anchor points situated in the sheath and likewise for the suspension cable of the counter weight.
Néanmoins, la tension initiale du ou des câbles de l'élément linéaire d'entraînement de la cabine, appliquée lors du montage est définie une fois pour toute. Elle dépend des points de fixation d'ancrage des extrémités de ce ou ces câbles et d'une certaine extension du ou des câbles créée par les moyens de fixation utilisée (tige filetée, ressort) .Nevertheless, the initial tension of the cable or cables of the linear drive element of the cabin, applied during assembly is defined once and for all. It depends on the anchoring attachment points of the ends of this or these cables and on a certain extension of the cable or cables created by the fixing means used (threaded rod, spring).
Cet agencement cinématique ne prend pas en compte l'allongement élastique du ou des câbles provoqué lors du chargement de la cabine, du tassement du bâtiment, de la variation de la température...)This kinematic arrangement does not take into account the elastic elongation of the cable (s) caused during loading of the cabin, compaction of the building, variation in temperature, etc.)
De ce fait, la tension souhaitée et définie initialement varie, elle modifie le rapport de tension des brins de câbles de part et d'autres de la poulie, jusqu'à un différentiel critique qui conduit au glissement des câbles sur la poulie de traction par perte d'adhérence de l'entraînement en rotation du ou des câbles sur la poulie d'entraînement. Ledit agencement ne fonctionne donc pas de façon fiable dans le temps.Therefore, the tension initially desired and defined varies, it modifies the tension ratio of the strands of cables on both sides of the pulley, until a critical differential which leads to the sliding of the cables on the traction sheave by loss of grip of the rotary drive of the cable (s) on the drive pulley. Said arrangement therefore does not function reliably over time.
L'invention vise à remédier à cet inconvénient en proposant un dispositif d'adhérence de l'entraînement dans les installations d'ascenseur pourvues de moyens d'entraînement et de moyens de suspension indépendants l'un de l'autre, caractérisé en ce que l'une des extrémités de l'élément linéaire d'entraînement de la cabine est reliée à un point fixe et son autre extrémité, de l'autre côté de la poulie de traction est fixée à un ensemble mécanique articulé formant levier et pourvu d'une charge constante, appliquant sur celle-ci une tension constante Tc tandis qu'une tension T est appliquée de l'autre côté de la poulie, en sorte que le différentiel de tensions T - Tc de l'élément linéaire de part et d'autre de la poulie est inférieur à une valeur critique ΔTQ déterminée par la configuration de l'entraînement à partir de laquelle l'élément linéaire glisse sur la poulie de traction.The invention aims to remedy this drawback by proposing a device for adhering the drive in elevator installations provided with drive means and independent suspension means, characterized in that one end of the linear drive element of the cabin is connected to a fixed point and its other end, on the other side of the traction sheave, is fixed to an articulated mechanical assembly forming a lever and provided with a constant load, applying on it a constant tension T c while a tension T is applied on the other side of the pulley, so that the tension differential T - T c of the linear element on the one hand and other side of the pulley is less than a critical value ΔT Q determined by the configuration of the drive from which the linear element slides on the traction sheave.
L'avantage du dispositif selon l'invention est de soumettre l'élément linéaire d'entraînement à la charge massique du levier de l'ensemble articulé, qui est définie en fonction de ladite valeur minimale d'adhérence et qui garantit l'adhérence du câble dans toutes les situations de charge en cabine et de fluctuations et vieillissement de l'installation d'ascenseur et bâtiment concerné. Pour des besoins de sécurité, le dispositif est réalisé pour satisfaire les valeurs maximales de l'allongement du câble jusqu'à une valeur limite maximale. Il comporte un capteur de mesure de l'allongement de l'élément linéaire d'entraînement, le fonctionnement de l'ascenseur étant autorisé dans une zone d'allongement déterminée de l'élément linéaire, ceci pour assurer la sécurité du fonctionnement de l'ascenseur.The advantage of the device according to the invention is to subject the linear drive element to the mass load of the lever of the assembly articulated, which is defined as a function of said minimum adhesion value and which guarantees the adhesion of the cable in all situations of cabin load and fluctuations and aging of the elevator installation and building concerned. For security purposes, the device is designed to satisfy the maximum values of the elongation of the cable up to a maximum limit value. It includes a sensor for measuring the elongation of the linear drive element, the operation of the elevator being authorized in a determined elongation zone of the linear element, this to ensure the safe operation of the elevator.
Naturellement, l'adhérence de l'élément linéaire sur la poulie de traction, qui peut consister en un ou plusieurs câbles ou encore en une ou plusieurs courroies plates ou non, varie en fonction de la forme des gorges de poulie de réception des câbles ou courroies, du diamètre de la poulie et de la nature des matériaux employés pour les câbles ou courroies et la poulie et ces paramètres influent sur ladite valeur de tension en charge de l'élément linéaire d'entraînement.Naturally, the adhesion of the linear element to the traction sheave, which may consist of one or more cables or even of one or more flat or non-flat belts, varies according to the shape of the pulley grooves for receiving the cables or belts, the diameter of the pulley and the nature of the materials used for the cables or belts and the pulley and these parameters influence said load tension value of the linear drive element.
Lesdits câbles ou courroies de l'élément linéaire d'entraînement sont avantageusement reliés par leur extrémité précitée audit ensemble mécanique au moyen d'un montage articulé lui-même sur l'ensemble mécanique en sorte qu'ils ne fléchissent pas à leur dite extrémité lors du mouvement de l'ensemble mécanique autour de son articulation pour rattraper les fluctuations de l'installation d'ascenseur.Said cables or belts of the linear drive element are advantageously connected by their aforementioned end to said mechanical assembly by means of an articulated assembly itself on the mechanical assembly so that they do not flex at their said end during of the movement of the mechanical assembly around its articulation to compensate for the fluctuations of the elevator installation.
Ce montage peut consister en une plaque ou platine articulée sur l'ensemble mécanique, laquelle dans le cas de plusieurs câbles ou courroies pour l'élément linéaire, comporte en outre un ressort relié à l'extrémité de chacun des câbles ou courroies en vue d'équilibrer au même niveau les tensions des câbles ou courroies sur la platine de l'ensemble mécanique. II résulte de cette disposition selon l'invention un dispositif d'adhérence de l'élément linéaire d'entraînement de cabine d'ascenseur sur la poulie motrice, qui est parfaitement indépendant des fluctuations d'ancrage des extrémités de l'élément linéaire contrairement à la technique classique précitée, et qui procure une caractéristique permanente d'adhérence de l'élément linéaire d'entraînement sur sa poulie d'entraînement qu'elle que soit les fluctuations de l'ascenseur, de l'allongement de l'élément linéaire, et de mouvement du bâtiment dans lequel l'installation est montée.This assembly may consist of a plate or plate articulated on the mechanical assembly, which in the case of several cables or belts for the linear element, further comprises a spring connected to the end of each of the cables or belts in view of '' balance the tensions of cables or belts at the same level on the plate of the mechanical assembly. The result of this arrangement according to the invention is a device for adhering the linear element for driving the elevator car to the driving pulley, which is perfectly independent of the fluctuations in anchoring of the ends of the linear element, unlike the aforementioned conventional technique, and which provides a permanent characteristic of adhesion of the linear drive element to its drive pulley, whatever the fluctuations of the elevator, of the elongation of the linear element, and building movement in which the installation is mounted.
L'invention est illustrée ci-après en référence à un exemple de réalisation d'un dispositif selon l'invention et à l'aide des dessins annexés sur lesquels : Le figure 1 est une vue schématique d'une installation d'ascenseur à entraînement et suspension indépendants pourvue du dispositif selon l'invention ;The invention is illustrated below with reference to an embodiment of a device according to the invention and with the aid of the appended drawings in which: FIG. 1 is a schematic view of an installation of a driven elevator and independent suspension provided with the device according to the invention;
La figure 2 est une vue en perspective et coupe transversale de la poulie de traction recevant l'élément linéaire d'entraînement ; La figure 3 est une vue agrandie de l'ensemble mécanique articulé ; etFigure 2 is a perspective view and cross section of the traction sheave receiving the linear drive element; Figure 3 is an enlarged view of the articulated mechanical assembly; and
La figure 4 est une vue agrandie de la platine articulée de l'ensemble mécanique, à laquelle est relié l'élément linéaire d'entraînement. L'installation d'ascenseur représentée sur la figure 1 comprend une cabine 1 et un contrepoids 3 pouvant se déplacer dans une gaine verticale, respectivement le long de rails de cabine et de rails de contrepoids, non représentés.Figure 4 is an enlarged view of the articulated plate of the mechanical assembly, to which is connected the linear drive element. The elevator installation shown in FIG. 1 comprises a car 1 and a counterweight 3 which can move in a vertical sheath, respectively along car rails and counterweight rails, not shown.
La cabine 1 et le contrepoids 3 sont suspendus chacun à un câble 5', dont un seul est représenté pour ne pas encombrer les figures.The cabin 1 and the counterweight 3 are each suspended from a cable 5 ', only one of which is shown so as not to clutter the figures.
Le contrepoids 3 est généralement choisi pour équilibrer le poids de la cabine 1 augmenté du poids de la moitié de la charge maximale qui peut être embarquée dans la cabine.The counterweight 3 is generally chosen to balance the weight of the cabin 1 increased by the weight of half the maximum load that can be loaded in the cabin.
L'installation d'ascenseur comporte également un moteur d'entraînement 7 qui, dans le mode de réalisation illustré, a été représenté au sommet de la gaine.The elevator installation also includes a drive motor 7 which, in the illustrated embodiment, has been shown at the top of the shaft.
Sur l'arbre du moteur est calée une poulie de traction 9 qui est entraînée en rotation lorsque le moteur fonctionne. Sur la poulie de traction 9 s'enroule avec un contact frottant un élément linéaire d'entraînement 5, tel que deux câbles juxtaposés 5a, reçus chacun dans une gorge en V de la poulie (figure 2).On the motor shaft is wedged a traction sheave 9 which is rotated when the motor is running. On the traction sheave 9 is wound with a contact rubbing a linear drive element 5, such as two juxtaposed cables 5a, each received in a V-groove of the pulley (Figure 2).
Pour la commodité de la représentation, la suspension du contrepoids 3 a été représentée sur le côté gauche de la figure 1 et l'entraînement de la cabine 1 sur le côté droit. La cabine porte dans un plan vertical médian deux poulies supérieures 11 et quatre poulies inférieures 13. Les poulies supérieures 11 sont disposées chacune proche de chaque côté de la cabine et reçoivent le câble de suspension 5' du contrepoids, lequel est fixé à l'extrémité haute de la gaine en 14, passe sous les poulies 11, est enroulé sur une poulie de renvoi haute 15 et est moufle sur une poulie 17 de contrepoids pour repartir jusqu'à un point de fixation haut 19 de la gaine.For the convenience of the representation, the suspension of the counterweight 3 has been shown on the left side of FIG. 1 and the drive of the cabin 1 on the right side. The cabin carries in a median vertical plane two upper pulleys 11 and four lower pulleys 13. The upper pulleys 11 are each arranged close to each side of the cabin and receive the suspension cable 5 ′ of the counterweight, which is fixed to the upper end of the sheath at 14, passes under the pulleys 11, is wound on a high deflection pulley 15 and is muffled on a counterweight pulley 17 to start again up to a high fixing point 19 of the sheath.
Les poulies inférieures 13 sont disposées adjacentes deux à deux, verticalement et à faible distance l'une de l'autre, de chaque côté de la cabine. Elles reçoivent l'élément linéaire d'entraînement 5 (à deux câbles 5a en acier), lequel est fixé en haut de la gaine en 21, descend verticalement par la gauche pour repartir horizontalement en renvoi sur les deux poulies inférieures hautes 13, remonte verticalement sur la poulie de traction haute 9, s'y enroule sur un demi-cercle et redescend verticalement jusqu'à une poulie de renvoi basse 23 en fond de gaine, puis remonte jusqu'au renvoi horizontal par les poulies inférieures basses 13 et redescend jusqu'à un ensemble mécanique articulé 25 auquel il est relié par son extrémité.The lower pulleys 13 are arranged adjacent two by two, vertically and at a short distance from each other, on each side of the cabin. They receive the linear drive element 5 (with two steel cables 5a), which is fixed at the top of the sheath at 21, descends vertically from the left to start horizontally returning to the two upper lower pulleys 13, ascends vertically on the high traction sheave 9, rolls up on a semicircle and descends vertically to a low return pulley 23 at the bottom of the sheath, then goes back up to the horizontal return by the low lower pulleys 13 and goes back down to 'to an articulated mechanical assembly 25 to which it is connected by its end.
L'exemple représenté montre un cas d'entraînement moufle permettant de diviser par deux l'effort de traction de la cabine. En outre, le mouvement d'entraînement de la cabine est directement commandé, aussi bien en montée par le renvoi de l'élément linéaire d'entraînement sur les poulies inférieures hautes, qu'en descente par celui des poulies inférieures basses.The example shown shows a muffle drive case enabling the cabin tensile force to be halved. In addition, the drive movement of the cabin is directly controlled, both upwards by the return of the linear drive element on the upper lower pulleys, and downhill by that of the lower lower pulleys.
La tension de l'élément linéaire d'entraînement du côté droit de la poulie Tc est conférée par l'ensemble mécanique articulé 25 décrit ci- après et sur le côté gauche T par la charge variable de la cabine.The tension of the linear drive element on the right side of the pulley T c is imparted by the articulated mechanical assembly 25 described below and on the left side T by the variable load of the cabin.
Le différentiel de tension de l'ensemble des câbles 5a, de part et d'autre de la poulie 9 : T - T0 doit être inférieur, de préférence nettement inférieur à une valeur critique ΔT0 (T-Tc < ΔTG) à partir de laquelle, pour une configuration d'adhérence donnée des câbles 5a sur la poulie 9, fonction des matériaux des câbles et de la poulie, de l'enroulement des câbles sur la poulie, de la pente des gorges etc., le câble risque de glisser sur la poulie à une valeur maximale Tmaχ de T à la charge maximale de la cabine. La tension Tc est donc déterminée par l'inéquation ci-dessus, ΔT0 et Υm___ étant connus L'ensemble mécanique 25 est constitué par un levier 27, lequel est articulé en 29 par son extrémité à un socle support 31 fixé en fond de gaine et est pourvu à son autre extrémité d'une masse 33 de poids déterminée.The voltage differential of all of the cables 5a, on either side of the pulley 9: T - T 0 must be less, preferably significantly less than a critical value ΔT 0 (TT c <ΔT G ) from of which, for a given grip configuration of the cables 5a on the pulley 9, a function of the materials of the cables and of the pulley, of the winding of the cables on the pulley, of the slope of the grooves, etc., the cable risks slide on the pulley to a maximum value T ma χ of T at the maximum cabin load. The voltage T c is therefore determined by the above inequation, ΔT 0 and Υ m ___ being known The mechanical assembly 25 is constituted by a lever 27, which is articulated at 29 by its end to a support base 31 fixed at sheath bottom and is provided at its other end with a mass 33 of weight determined.
Les deux câbles 5a de l'élément linéaire d'entraînement sont reliés à une platine articulée 35, disposée proche de l'axe d'articulation 29 du levier, de manière à les tendre dans le rapport de bras de levier du levier 27 et en proportion du poids de la masse d'extrémité 33.The two cables 5a of the linear drive element are connected to an articulated plate 35, disposed close to the axis of articulation 29 of the lever, so as to tension them in the lever arm ratio of the lever 27 and in proportion of the weight of the end mass 33.
Chacun des câbles 5a est monté traversant dans la platine 35 et comporte un ressort hélicoïdal 37 à son extrémité, appliqué sous la face inférieure de la platine 35. Les câbles sont appliqués de part et d'autre de l'axe de la platine, à égale distance l'un de l'autre, l'un des câbles étant représenté en trait mixte vertical sur la figure 3. Les ressorts 37 sont identiques et leur réglage de tension est effectué en sorte que la platine 35 soit horizontale et le demeure lors du débattement du levier suite aux fluctuations dans le temps des cotes géométriques de l'installation d'ascenseur, du bâtiment support et d'allongement des câbles.Each of the cables 5a is mounted passing through in the plate 35 and comprises a helical spring 37 at its end, applied under the underside of the plate 35. The cables are applied on either side of the axis of the plate, equal distance from each other, one of the cables being shown in vertical dashed line in Figure 3. The springs 37 are identical and their tension adjustment is made so that the plate 35 is horizontal and remains so during the lever travel due to fluctuations over time in the geometric dimensions of the elevator installation, the support building and cable extension.
Un commutateur de fin de course 39 est disposé sous le levier 27 solidairement au socle 31. Ce commutateur 39 est destiné à interrompre le fonctionnement de l'ascenseur à un débattement excessif du levier 27, en descente vers le bas et signifiant une fluctuation trop importante préjudiciable au fonctionnement de l'installation.An end-of-travel switch 39 is disposed under the lever 27 integral with the base 31. This switch 39 is intended to interrupt the operation of the elevator at an excessive movement of the lever 27, descending downward and signifying too great a fluctuation. detrimental to the operation of the installation.
Naturellement, au réglage initial de tension de l'installation le levier 27 est disposé horizontalement. Ce réglage doit répondre à l'inéquation précitée.Naturally, at the initial adjustment of the installation tension, the lever 27 is arranged horizontally. This adjustment must meet the above inequality.
La tension Tc sur les câbles 5a est répartie équivalente pour chacun d'eux et elle demeure constante dans le temps, sauf coupure du fonctionnement par le commutateur de fin de course de sécurité 39.The voltage T c on the cables 5a is distributed equivalent for each of them and it remains constant over time, unless the operation is cut off by the safety limit switch 39.
Cette tension T0 est réglée par une masse adéquate 33, éventuellement déplaçable sur la longueur du levier, à un niveau de tension pour laquelle, à une charge maximale de la cabine déterminant Tmax, Tmax - Tc < ΔT0 selon l'inéquation précitée pour que les câbles ne glissent pas sur la poulie de traction.This tension T 0 is regulated by an adequate mass 33, possibly displaceable over the length of the lever, at a tension level for which, at a maximum load of the cabin determining Tmax, Tmax - T c <ΔT 0 according to the above-mentioned inequality so that the cables do not slip on the traction sheave.
Des variantes de réalisation entrent dans le cadre de l'invention. Ainsi, la masse du levier peut être complétée par un vérin relié au levier et appliqué sur ce dernier à une pression constante. Dans un cas limite, le dispositif peut comporter une masse en suspension à l'extrémité de l'élément linéaire.Variant embodiments fall within the scope of the invention. Thus, the mass of the lever can be supplemented by a jack connected to the lever and applied to the latter at a constant pressure. In a borderline case, the device may include a mass suspended at the end of the linear element.
Ce qui précède montre la simplicité de la solution selon l'invention pour assurer un fonctionnement fiable des ascenseurs à suspension et entraînement indépendants. The above shows the simplicity of the solution according to the invention to ensure reliable operation of independent suspension and drive elevators.

Claims

REVENDICATIONS 1. Dispositif d'adhérence de l'entraînement dans les installations d'ascenseur pourvues de moyens d'entraînement et de moyens de suspension indépendants l'un de l'autre, caractérisé en ce que l'une des extrémités de l'élément linéaire d'entraînement (5) de la cabine (1) est reliée à un point fixe (21) et son autre extrémité, de l'autre côté de la poulie de traction (9), est fixée à un ensemble mécanique articulé (25) formant levier et pourvu d'une charge constante (33), appliquant sur celle-ci une tension constante Tc, tandis qu'une tension T est appliquée de l'autre côté de la poulie, en sorte que le différentiel de tensions T - T0 de l'élément linéaire (5) de part et d'autre de la poulie (9) est inférieur à une valeur critique ΔT0 déterminée par la configuration de l'entraînement à partir de laquelle l'élément linéaire (5) glisse sur la poulie de traction (9) . CLAIMS 1. Device for adhering the drive in elevator installations provided with drive means and independent suspension means, characterized in that one of the ends of the element linear drive (5) of the cabin (1) is connected to a fixed point (21) and its other end, on the other side of the traction sheave (9), is fixed to an articulated mechanical assembly (25 ) forming a lever and provided with a constant load (33), applying thereto a constant tension T c , while a tension T is applied on the other side of the pulley, so that the tension differential T - T 0 of the linear element (5) on either side of the pulley (9) is less than a critical value ΔT 0 determined by the configuration of the drive from which the linear element (5) slides on the traction sheave (9).
2. Dispositif d'adhérence selon la revendication 1, caractérisé en ce que l'élément linéaire d'entraînement (5) consiste en un ou plusieurs câbles (5a) ou courroies.2. Adhesion device according to claim 1, characterized in that the linear drive element (5) consists of one or more cables (5a) or belts.
3. Dispositif d'adhérence selon la revendication 2, caractérisé en ce que lesdits câbles (5a) ou courroies de l'élément linéaire d'entraînement (5) sont reliés par leur dite extrémité audit ensemble mécanique au moyen d'un montage (35) articulé lui-même sur l'ensemble mécanique, en sorte qu'ils ne fléchissent pas à leur extrémité lors du mouvement de l'ensemble mécanique (25) autour de son articulation pour rattraper les fluctuations de l'installation d'ascenseur. 3. Adhesion device according to claim 2, characterized in that said cables (5a) or belts of the linear drive element (5) are connected by their said end to said mechanical assembly by means of a mounting (35 ) hinged itself on the mechanical assembly, so that they do not bend at their end during the movement of the mechanical assembly (25) around its articulation to compensate for fluctuations in the elevator installation.
4. Dispositif d'adhérence selon la revendication 3, caractérisé en ce que ledit montage consiste en une plaque ou platine articulée (35) sur l'ensemble mécanique (25), laquelle dans le cas de plusieurs câbles (5a) ou courroies pour l'élément linéaire (5a), comporte en outre au moins un ressort (37) relié à l'extrémité de chacun des câbles (5a) ou courroies en vue d'équilibrer au même niveau les tensions des câbles (5a) ou courroies sur la platine (35) de l'ensemble mécanique.4. Adhesion device according to claim 3, characterized in that said assembly consists of an articulated plate or plate (35) on the mechanical assembly (25), which in the case of several cables (5a) or belts for the linear element (5a), further comprises at least one spring (37) connected to the end of each of the cables (5a) or belts in order to balance at the same level the tensions of the cables (5a) or belts on the plate (35) of the mechanical assembly.
5. Dispositif d'adhérence selon l'une des revendications précédentes, caractérisé en ce que pour des besoins de sécurité, le dispositif est réalisé pour satisfaire les valeurs maximales de l'allongement jusqu'à une limite permise et comporte un capteur de mesure de l'allongement de l'élément linéaire d'entraînement, le fonctionnement de l'ascenseur étant autorisé dans une zone d'allongement déterminée de l'élément linéaire, ceci pour assurer la sécurité du fonctionnement de l'ascenseur.5. Adhesion device according to one of the preceding claims, characterized in that for safety needs, the device is designed to satisfy the maximum values of the elongation up to a permitted limit and comprises a sensor for measuring the elongation of the linear drive element, the operation of the elevator being authorized in a zone determined elongation of the linear element, this to ensure the safe operation of the elevator.
6. Dispositif d'adhérence selon l'une des revendications précédentes, caractérisé en ce que l'ensemble articulé (25) est constitué par un levier (27) , lequel est articulé à une extrémité à un socle support (31) fixé en fond de gaine et est pourvu à son autre extrémité d'une masse (33) de poids déterminé, les câbles ou courroies (5a) de l'élément linéaire d'entraînement étant reliés à une platine articulée (35) disposée proche de l'axe d'articulation (29) du levier de manière à les tendre dans un rapport de bras de levier et en fonction du poids de la masse d'extrémité.6. Adhesion device according to one of the preceding claims, characterized in that the articulated assembly (25) consists of a lever (27), which is articulated at one end to a support base (31) fixed at the bottom sheath and is provided at its other end with a mass (33) of determined weight, the cables or belts (5a) of the linear drive element being connected to an articulated plate (35) disposed close to the axis of articulation (29) of the lever so as to tension them in a lever arm relationship and according to the weight of the end mass.
7. Dispositif d'adhérence selon la revendication 6, caractérisé en ce que chacun des câbles (5a) ou courroies est monté traversant dans la platine et comporte un ressort hélicoïdal (37) à son extrémité, appliqué sous la face inférieure de la platine (35), les câbles étant appliqués de part et d'autre de l'axe de la platine (35), à égale distance l'un de l'autre, Les ressorts (37) étant identiques et leur réglage de tension effectué en sorte que la platine (35) soit horizontale et le demeure lors du débattement du levier suite aux fluctuations dans le temps des cotes géométriques de l'installation, du bâtiment support et d'allongement des câbles.7. Adhesion device according to claim 6, characterized in that each of the cables (5a) or belts is mounted passing through in the plate and comprises a helical spring (37) at its end, applied under the underside of the plate ( 35), the cables being applied on either side of the axis of the plate (35), at equal distance from each other, The springs (37) being identical and their tension adjustment carried out so that the plate (35) is horizontal and remains so during the movement of the lever following the fluctuations in time of the geometric dimensions of the installation, of the support building and of the elongation of the cables.
8. Dispositif d'adhérence selon l'une des revendications précédentes, caractérisé en ce que la masse du levier (27) est complétée par un vérin relié au levier et appliqué sur ce dernier à une pression constante.8. Adhesion device according to one of the preceding claims, characterized in that the mass of the lever (27) is completed by a jack connected to the lever and applied to the latter at a constant pressure.
9. Dispositif d'adhérence selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un commutateur de fin de course (39) disposé sous le levier (27), ce commutateur étant destiné à interrompre le fonctionnement de l'ascenseur à un débattement excessif du levier, en descente vers le bas.9. Adhesion device according to one of the preceding claims, characterized in that it comprises a limit switch (39) disposed under the lever (27), this switch being intended to interrupt the operation of the elevator excessive movement of the lever, downwards.
10. Dispositif d'adhérence selon l'une des revendications précédentes, caractérisé en ce que la tension Tc est réglée par une masse adéquate (33), éventuellement déplaçable sur la longueur du levier (27) en sorte qu'à une valeur Tmaχ correspondant à une charge maximale de cabine, la valeur Tmax - Tc est inférieure à une valeur critique ΔT0 liée à la configuration de l'entraînement de l'élément linéaire, pour laquelle l'élément linéaire d'entraînement (5) glisse sur la poulie (9). 10. Adhesion device according to one of the preceding claims, characterized in that the tension T c is adjusted by an adequate mass (33), possibly displaceable over the length of the lever (27) so that at a value T ma χ corresponding to a maximum cabin load, the value T max - T c is less than a critical value ΔT 0 linked to the configuration of the element drive linear, for which the linear drive element (5) slides on the pulley (9).
PCT/FR2003/000236 2002-12-03 2003-01-24 Driving grip device in elevator installations provided with independent drive and suspension means WO2003086937A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03717350A EP1567443B1 (en) 2002-12-03 2003-01-24 Driving grip device in elevator installations provided with independent drive and suspension means
AU2003222337A AU2003222337A1 (en) 2002-12-03 2003-01-24 Driving grip device in elevator installations provided with independent drive and suspension means
DE60310448T DE60310448D1 (en) 2002-12-03 2003-01-24 DEVICE FOR LIQUIDING THE DRIVE ON ELEVATOR SYSTEMS WITH INDEPENDENT DRIVE AND SUSPENSION EQUIPMENT

Applications Claiming Priority (2)

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FR02/15195 2002-12-03
FR0215195A FR2847891A1 (en) 2002-12-03 2002-12-03 ADHESION DEVICE FOR DRIVING IN ELEVATOR INSTALLATIONS PROVIDED WITH INDEPENDENT DRIVING AND SUSPENSION MEANS.

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WO2003086937A1 true WO2003086937A1 (en) 2003-10-23
WO2003086937A8 WO2003086937A8 (en) 2005-04-07

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AT (1) ATE348071T1 (en)
AU (1) AU2003222337A1 (en)
DE (1) DE60310448D1 (en)
FR (1) FR2847891A1 (en)
RU (1) RU2005120743A (en)
WO (1) WO2003086937A1 (en)

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Publication number Priority date Publication date Assignee Title
CN103608280A (en) * 2011-06-22 2014-02-26 通力股份公司 Tensioning arrangement for a traction means of an elevator
WO2016005612A1 (en) 2014-07-07 2016-01-14 Mac Puar, S.A. Compact drive system for lifts
US9371212B2 (en) 2011-04-06 2016-06-21 Otis Elevator Company Elevator system including a 4:1 roping arrangement
US10252890B2 (en) * 2015-09-25 2019-04-09 Kone Corporation Method for installing an elevator in the construction phase of a building

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CN106276521B (en) * 2016-10-13 2019-06-25 北方民族大学 Elevator lifting device and elevator
FR3097540B1 (en) * 2019-06-18 2021-10-01 CEPA Ascenceurs Lift traction device

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FR2823734A1 (en) * 2001-04-19 2002-10-25 Serge Arnoult Lift installation comprises cabin and counterweights suspended by cable and motor rotates traction pulley around which linear element driving cabin-counterweight system is wound

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JPH107340A (en) * 1996-06-21 1998-01-13 Mitsubishi Denki Bill Techno Service Kk Tension pulley automatic adjusting device of elevator
US5788018A (en) * 1997-02-07 1998-08-04 Otis Elevator Company Traction elevators with adjustable traction sheave loading, with or without counterweights
FR2823734A1 (en) * 2001-04-19 2002-10-25 Serge Arnoult Lift installation comprises cabin and counterweights suspended by cable and motor rotates traction pulley around which linear element driving cabin-counterweight system is wound

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371212B2 (en) 2011-04-06 2016-06-21 Otis Elevator Company Elevator system including a 4:1 roping arrangement
CN103608280A (en) * 2011-06-22 2014-02-26 通力股份公司 Tensioning arrangement for a traction means of an elevator
EP2723668A1 (en) * 2011-06-22 2014-04-30 Kone Corporation Tensioning arrangement for a traction means of an elevator
EP2723668A4 (en) * 2011-06-22 2014-12-24 Kone Corp Tensioning arrangement for a traction means of an elevator
US9758346B2 (en) 2011-06-22 2017-09-12 Kone Corporation Tensioning arrangement for a traction means of an elevator
WO2016005612A1 (en) 2014-07-07 2016-01-14 Mac Puar, S.A. Compact drive system for lifts
US10252890B2 (en) * 2015-09-25 2019-04-09 Kone Corporation Method for installing an elevator in the construction phase of a building

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AU2003222337A1 (en) 2003-10-27
WO2003086937A8 (en) 2005-04-07
RU2005120743A (en) 2006-02-10
DE60310448D1 (en) 2007-01-25
EP1567443B1 (en) 2006-12-13
ATE348071T1 (en) 2007-01-15
EP1567443A1 (en) 2005-08-31
FR2847891A1 (en) 2004-06-04

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