EP0181243B1 - Cable car or chair lift with an electric drive - Google Patents

Cable car or chair lift with an electric drive Download PDF

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Publication number
EP0181243B1
EP0181243B1 EP85401957A EP85401957A EP0181243B1 EP 0181243 B1 EP0181243 B1 EP 0181243B1 EP 85401957 A EP85401957 A EP 85401957A EP 85401957 A EP85401957 A EP 85401957A EP 0181243 B1 EP0181243 B1 EP 0181243B1
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EP
European Patent Office
Prior art keywords
alternator
wheel
bull
excitation
installation according
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
Application number
EP85401957A
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German (de)
French (fr)
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EP0181243A1 (en
Inventor
Jean-Jacques Bertrand
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.)
Poma SA
Original Assignee
Pomagalski SA
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Publication date
Application filed by Pomagalski SA filed Critical Pomagalski SA
Priority to AT85401957T priority Critical patent/ATE39447T1/en
Publication of EP0181243A1 publication Critical patent/EP0181243A1/en
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Publication of EP0181243B1 publication Critical patent/EP0181243B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/10—Cable traction drives
    • B61B12/105—Acceleration devices or deceleration devices other than braking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/02—Suspension of the load; Guiding means, e.g. wheels; Attaching traction cables
    • B61B12/022—Vehicle receiving and dispatching devices

Definitions

  • the invention relates to an overhead cable installation, in particular a detachable gondola or chairlift, having a cable extending in an endless loop between two stations, in which it passes over extreme deflection pulleys, one of which is driving, the loads, in particular the cabins or seats, being coupled to the cable in line and uncoupled in the stations to circulate on transfer rails provided with a means of propulsion at a speed proportional to that of the cable.
  • the invention is described below as being applied to a detachable chairlift, but it is clear that it is applicable to other installations such as cable cars, monocable or bicable cableways, etc.
  • the object of the present invention is to provide a simplified installation, in which the synchronization of the movements is perfectly preserved over a wide range of speeds.
  • the transport installation according to the invention is characterized in that said propulsion means comprises a synchronous electric drive motor, supplied with alternating current by an electric alternator, mechanically connected to the extreme pulley of the station by a desmodromic mechanical connection ensuring a rotation of the alternator at a speed multiple of that of the pulley.
  • the alternator By coupling the alternator to the return pulley or to a part rigidly integral in rotation with this pulley, the alternator is driven at a speed proportional to that of the cable and it delivers a current whose frequency is proportional to this speed.
  • the synchronous motor supplied by this current rotates at a perfectly proportional speed, except during a stall due to an excessively high resistive torque which causes the motor to stop and subsequently the installation.
  • the electrical connection between the alternator and the engine can be relatively long and include flexible cables, the same alternator being able to drive several engines, each disposed near the driven members.
  • the alternator can be connected to the extreme pulley by a multiplier gear train, the pulley being either a return pulley or a drive pulley.
  • the alternator is mounted on the pulley support carriage to avoid flexible mechanical transmission.
  • the alternator can be coupled to the high speed shaft of the drive pulley drive reducer, for example by a transmission with V-belts, preventing any slipping.
  • the alternator is provided with additional excitation means, engaged at speeds below a predetermined threshold.
  • additional excitation means comprise, according to a first embodiment, an auxiliary source, such as an accumulator, which supplies a current to an excitation winding of the alternator when the threshold is crossed.
  • the self-excitation of the alternator is increased at low speed, for example by suitable filters and permanent magnets.
  • an overhead cable 10 of a single-cable chairlift which could be a cable car or a similar single-cable or two-cable transporter, passes through an end station 12 on a pulley 14 for deflection.
  • the seats 18 are fixed by a hanger 20 to a carriage 22 carrying a clamp 24 for coupling to the cable 10.
  • a spring 26 biases the clamp 24 in the cable clamping position, the opening being controlled by a lever 28 cooperating with a fixed ramp 30.
  • the carriage 22 carries rollers 32 and positioning rollers 34 and a plate 36 of drag capable of cooperating with wheels 38 for driving tires.
  • a transfer rail 40 on which the rollers 32 engage.
  • the lever 28 for controlling the opening of the clamp 24 approaches the ramp 30 to open the clamp 24 and uncoupling the carriage 22 from the cable 10.
  • a slight relative movement of the carriage 22 relative to the cable 10 releases the latter from the clamp 24.
  • a set of tires wheels 38 carried by a beam 42 parallel to the rail 40, cooperate with the plate 36 of the carriage 22 for driving the latter.
  • the wheels 38 are connected to a motor 16 by a cardan transmission 41 and a reduction gear 43 or by belt transmissions, the first wheels of the train rotating at the speed of the cable 10 to synchronize the movement of the carriage 22, while the wheels 38 following decelerate the carriage 22 uncoupled from the cable 10 and rolling on the rail 40.
  • the rail 40 extends in a half-loop in the station to join the other strand of the cable 10 constituting the other path of the chairlift passing in front of a boarding area 44 if the station 12 is a boarding station. It is clear that this station can be a landing station or include both a landing platform and a platform for boarding passengers, especially skiers.
  • the carriage 22 is supported by a chain 46 with cleats 48 for drive or restraint, which extends in a closed loop along the transfer rail 40 to positively drive the carriages 22 at reduced speed.
  • cleats 48 for drive or restraint, which extends in a closed loop along the transfer rail 40 to positively drive the carriages 22 at reduced speed.
  • Any other propulsion system for trucks is of course usable.
  • the chain 46 is driven by a motor 50 which could be the motor 16 for driving the wheels 38.
  • the output of the station 12 is similarly equipped with a train of wheels 38 driven by a motor 52, which accelerate the carriage 22 and synchronize its speed with that of the cable 10 before re-coupling by closing the clamp 24 on the cable 10.
  • a train of wheels 38 driven by a motor 52, which accelerate the carriage 22 and synchronize its speed with that of the cable 10 before re-coupling by closing the clamp 24 on the cable 10.
  • Such chairlifts, with detachable seats in the stations, are known and allow boarding and disembarking at reduced speed, the cable 10 traveling at high speed continuously.
  • the return pulley 14 is carried by a carriage 56 slidably mounted on the frame 54 of the station to ensure the tension of the cable 10.
  • a toothed wheel 58 is rigidly fixed to the pulley 14 to drive, by a pinion 60 and a multiplier 62, for example with gears, an alternator 64 fixed to the carriage 56.
  • the alternator 64 rotates at a speed proportional to that of the cable 10 and delivers a frequency current proportional to this speed.
  • FIG. 4 represents a variant in which the pulley 14 is a drive pulley, driven in rotation by a motor 66 by means of a reduction gear 68.
  • the alternator 64 is coupled to the high speed shaft of the reduction gear 68 by a transmission with V-belts which rotates the alternator at a speed multiple of that of the pulley 14.
  • the current delivered by the alternator 64 is not modified by the alternator drive mode, which could moreover be different.
  • the alternator 64 is connected to the engines 16, 50, 52 by trip-based cables 70, of which only the one supplying the engine 16 is shown in FIG. 5.
  • the three phase windings R S T of the alternator 64 connected to the cable 70, also supply the excitation current to an excitation winding 72 of the alternator 64 by a circuit 73, comprising a rectifier block 74.
  • the alternator 64 comprises a second excitation winding 76 given to an accumulator 78 by a circuit 80, into which are inserted a switch 82 with centrifugal control and a regulator block 84.
  • the switch 82 is controlled by the alternator 64 to close automatically when the speed of the alternator becomes lower than a predetermined threshold speed (and different from zero).
  • the supply of the second excitation winding 76 makes it possible to increase the excitation at low speed and to maintain the characteristics of the alternator for synchronous supply of the engine 16. This thus avoids stalling during periods of operation at low speed .
  • centrifugal switch 82 can be controlled in a different way, for example as a function of the characteristics or of the frequency of the current.
  • the alternator 64 comprises a single excitation winding 72, supplied by the rectifier block 74 in the manner described below.
  • a regulator 86 varying the excitation current as a function of the frequency of the current.
  • the regulator 86 can be a filter whose conductance is greater for low frequency currents.
  • the excitation of the alternator varies automatically with its speed to maintain synchronism over a wide range of speeds.
  • the filter 86 can be replaced by a rheostat controlled by a speed detector or any other equivalent means.
  • excitation adjustment means do not require an auxiliary source and are advantageously incorporated in the motor.
  • FIG. 7 illustrates a preferred embodiment in which the alternator 64 comprises, in addition to the excitation winding 72, a permanent excitation magnet 88, the magnetic intensity of which is sufficient for the alternator delivers a current, even at low speed, sufficient to drive the motor.
  • alternator 64 can supply a single engine, mechanically coupled to all of the friction wheels 38 or other propulsion means 46 and that the mechanical transmissions can be of any type, for example with V-belts.
  • the idler pulley can also drive several alternators, each supplying a synchronous motor.
  • connection by electric cable between the alternator and the engine allows relative movement, in particular of the tension carriage.
  • the electric accumulator can be recharged by the alternator 64 during periods of operation at normal speed or at high speed, making the assembly autonomous.
  • the invention is in no way limited to the mode of implementation more particularly described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A detachable chair or gondola lift is disclosed wherein an alternator is driven by a rope bull-wheel. The alternator supplies a synchronous motor for driving friction wheels or other mechanisms for driving the cars in an end station of the chair or gondola lift. The electrical connection between the alternator and the synchronous motor ensures synchronous rotation of the motor. The alternator can be connected to the bull-wheel by a multiplier gear, the bull-wheel being either a tension bull-wheel or a driving bull-wheel. In the case of a tension bull-wheel, the alternator is mounted on the bull-wheel support carriage to avoid a flexible mechanical transmission. The alternator can be coupled to the high speed shaft of a driving bull-wheel reducer gear, for example, by a trapizoidal belt transmission. At low speed, the excitation of the alternator is increased to preserve the synchronism of the movements. Such excitation is accomplished by an auxiliary power source, or by self excitation by suitable permanent magnets and filters.

Description

L'invention est relative à une installation à câble aérien, notamment une télécabine ou un télésiège débrayable, ayant un câble s'étendant en boucle sans fin entre deux stations, dans lesquelles il passe sur des poulies extrêmes de renvoi, dont l'une est motrice, les charges, notamment les cabines ou sièges, étant accouplées au câble en ligne et désaccouplées dans les stations pour circuler sur des rails de transfert dotés d'un moyen de propulsion à vitesse proportionnelle à celle du câble.The invention relates to an overhead cable installation, in particular a detachable gondola or chairlift, having a cable extending in an endless loop between two stations, in which it passes over extreme deflection pulleys, one of which is driving, the loads, in particular the cabins or seats, being coupled to the cable in line and uncoupled in the stations to circulate on transfer rails provided with a means of propulsion at a speed proportional to that of the cable.

L'invention est décrite par la suite comme étant appliquée à un télésiège débrayable, mais il est clair qu'elle est applicable à d'autres installations telles que des télécabines, télébennes monocâbles ou bicâbles, etc...The invention is described below as being applied to a detachable chairlift, but it is clear that it is applicable to other installations such as cable cars, monocable or bicable cableways, etc.

Dans ces télésièges débrayables, il est important, voire indispensable d'assurer et de maintenir sans dérive dans le temps et en permanence un synchronisme entre les déplacements en ligne et en stations tant pour un accouplement sans glissement de la pince sur le câble à la sortie de la station, que pour le maintien d'une cadence régulière de circulation pendant toute la durée de fonctionnement.In these detachable chairlifts, it is important, even essential, to ensure and maintain without drift over time and permanently synchronism between movements on line and in stations both for coupling without sliding of the clamp on the cable at the outlet of the station, only to maintain a regular rate of circulation during the entire operating time.

Il est connu d'entraîner les roues de friction ou les chaînes de traînage des sièges en station, au moyen d'une prise de force du câble, par exemple d'une roue à pneumatique au contact du câble.It is known to drive the friction wheels or the drag chains of the stationary seats, by means of a PTO of the cable, for example a tire wheel in contact with the cable.

Cette liaison mécanique donne satisfaction, mais elle manque de souplesse et elle est difficile à mettre en oeuvre, notamment sur des structures mobiles et (ou) relativement longues.This mechanical connection is satisfactory, but it lacks flexibility and is difficult to implement, in particular on mobile and (or) relatively long structures.

La présente invention a pour but de réaliser une installation simplifiée, dans laquelle le synchronisme des déplacements est parfaitement conservé sur une large plage de vitesses.The object of the present invention is to provide a simplified installation, in which the synchronization of the movements is perfectly preserved over a wide range of speeds.

L'installation de transport selon l'invention est caractérisée en ce que ledit moyen de propulsion comporte un moteur éléctrique synchrone d'entraînement, alimenté en courant alternatif par un alternateur électrique, relié mécaniquement à la poulie extrême de la station par une liaison mécanique desmodromique assurant une rotation de l'alternateur a une vitesse multiple de celle de la poulie.The transport installation according to the invention is characterized in that said propulsion means comprises a synchronous electric drive motor, supplied with alternating current by an electric alternator, mechanically connected to the extreme pulley of the station by a desmodromic mechanical connection ensuring a rotation of the alternator at a speed multiple of that of the pulley.

En accouplant l'alternateur à la poulie de renvoi ou à une pièce rigidement solidaire en rotation de cette poulie, l'alternateur est entraîné à une vitesse proportionnelle à celle du câble et il délivre un courant dont la fréquence est proportionnelle à cette vitesse.By coupling the alternator to the return pulley or to a part rigidly integral in rotation with this pulley, the alternator is driven at a speed proportional to that of the cable and it delivers a current whose frequency is proportional to this speed.

Le moteur synchrone alimenté par ce courant tourne à une vitesse parfaitement proportionnelle, sauf lors d'un décrochage dû à un couple résistant trop élevé qui provoque l'arrêt du moteur et par la suite de l'installation.The synchronous motor supplied by this current rotates at a perfectly proportional speed, except during a stall due to an excessively high resistive torque which causes the motor to stop and subsequently the installation.

La liaison électrique entre l'alternateur et le moteur peut être relativement longue et comporter des câbles souples, le même alternateur pouvant entraîner plusieurs moteurs, disposé chacun a proximité des organes entraînés.The electrical connection between the alternator and the engine can be relatively long and include flexible cables, the same alternator being able to drive several engines, each disposed near the driven members.

Cette solution est basée sur la constatation que tout glissement du câble sur la poulie extrême est exclu et elle est notablement plus fiable qu'un dispositif électrique connu, qui utilise un moteur à courant continu dont la vitesse est asservie au signal d'une génératrice tachymétrique entraînée par le câble.This solution is based on the observation that any slippage of the cable on the extreme pulley is excluded and it is notably more reliable than a known electrical device, which uses a DC motor whose speed is slaved to the signal of a tachymeter generator. driven by the cable.

Cet asservissement présente en effet une dérive dans le temps, pratiquement inacceptable.This enslavement presents a drift in time, practically unacceptable.

L'alternateur peut être relié à la poulie extrême par un train d'engrenage multiplicateur, la poulie étant soit une poulie de renvoi, soit une poulie motrice.The alternator can be connected to the extreme pulley by a multiplier gear train, the pulley being either a return pulley or a drive pulley.

Dans le cas d'une poulie de tension, l'alternateur est monté sur le chariot de support de la poulie pour éviter une transmission mécanique souple.In the case of a tension pulley, the alternator is mounted on the pulley support carriage to avoid flexible mechanical transmission.

L'alternateur peut être accouplé à l'arbre grande vitesse du réducteur d'entraînement de la poulie motrice, par exemple par une transmission à courroies trapézoïdales, évitant tout glissement.The alternator can be coupled to the high speed shaft of the drive pulley drive reducer, for example by a transmission with V-belts, preventing any slipping.

La plage de vitesses de fonctionnement de l'appareil varie de 1 à 10, sinon plus, et le synchronisme doit être assuré pour toutes ces vitesses. Selon un développement de l'invention, l'alternateur est doté de moyens d'excitation additionnels, enclenchés lors de vitesses inférieures à un seuil prédéterminé. Ces moyens comportent, selon un premier mode de réalisation, une source auxiliaire, tel qu'un accumulateur, qui fournit un courant à un enroulement d'excitation de l'alternateur lors du franchissement du seuil.The operating speed range of the device varies from 1 to 10, if not more, and synchronism must be ensured for all these speeds. According to a development of the invention, the alternator is provided with additional excitation means, engaged at speeds below a predetermined threshold. These means comprise, according to a first embodiment, an auxiliary source, such as an accumulator, which supplies a current to an excitation winding of the alternator when the threshold is crossed.

Selon une variante l'auto-excitation de l'alternateur est accrue à faible vitesse par exemple par des filtres appropriés et des aimants permanents.According to a variant, the self-excitation of the alternator is increased at low speed, for example by suitable filters and permanent magnets.

D'autres avantages et caractéristiques ressortiront plus clairement de la description d'un mode de mise en oeuvre de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels:

  • la figure 1 est une vue schématique en plan d'une station d'un télésiège selon l'invention;
  • la figure 2 est une vue de côté d'un chariot de support d'un siège.
  • la figure 3 est une vue de détail illustrant le mécanisme d'entraînement de l'alternateur;
  • la figure 4 est une vue analogue à celle de la figure 3 illustrant une variante de réalisation;
  • la figure 5 montre le schéma électrique d'un premier mode de réalisation;
  • les figures 6 et 7 montrent les schémas électriques de deux autres variantes.
Other advantages and characteristics will emerge more clearly from the description of an embodiment of the invention, given by way of nonlimiting example and represented in the appended drawings, in which:
  • Figure 1 is a schematic plan view of a station of a chairlift according to the invention;
  • Figure 2 is a side view of a seat support carriage.
  • Figure 3 is a detail view illustrating the drive mechanism of the alternator;
  • Figure 4 is a view similar to that of Figure 3 illustrating an alternative embodiment;
  • FIG. 5 shows the electrical diagram of a first embodiment;
  • Figures 6 and 7 show the electrical diagrams of two other variants.

Sur les figures, un câble aérien 10 d'un télésiège monocâble qui pourrait être une télécabine ou un transporteur analogue monocâble ou bicâ- ble, passe dans une station 12 d'extrémité sur une poulie 14 de renvoi.In the figures, an overhead cable 10 of a single-cable chairlift which could be a cable car or a similar single-cable or two-cable transporter, passes through an end station 12 on a pulley 14 for deflection.

Les sièges 18 sont fixés par une suspente 20 à un chariot 22 portant une pince 24 d'accouplement au câble 10.The seats 18 are fixed by a hanger 20 to a carriage 22 carrying a clamp 24 for coupling to the cable 10.

Un ressort 26 sollicite la pince 24 en position de serrage du câble, l'ouverture étant commandée par un levier 28 coopérant avec une rampe fixe 30.A spring 26 biases the clamp 24 in the cable clamping position, the opening being controlled by a lever 28 cooperating with a fixed ramp 30.

Le chariot 22 porte des galets de roulement 32 et de positionnement 34 et une plaque 36 d'entraînement susceptible de coopérer avec des roues 38 d'entraînement à pneumatiques.The carriage 22 carries rollers 32 and positioning rollers 34 and a plate 36 of drag capable of cooperating with wheels 38 for driving tires.

Une telle pince est par exemple décrite dans la demande de brevet français FR-A-2 497 750 (EP-A-0 056 919), à laquelle on se référera avantageusement.Such pliers are for example described in French patent application FR-A-2 497 750 (EP-A-0 056 919), to which reference will advantageously be made.

A l'entrée de la station 12 est disposé parallèlement au câble 10 un rail 40 de transfert sur lequel s'engagent les galets 32. Simultanément le levier 28 de commande d'ouverture de la pince 24 aborde la rampe 30 pour ouvrir la pince 24 et désaccoupler le chariot 22 du câble 10. Un faible mouvement relatif du chariot 22 par rapport au câble 10 dégage ce dernier de la pince 24. Un train de roues 38 à pneumatiques, portées par une poutre 42 parallèle au rail 40, coopérent avec la plaque 36 du chariot 22 pour entraîner ce dernier. Les roues 38 sont reliées à un moteur 16 par une transmission à cardans 41 et à rédusteur 43 ou par des transmissions à courroies, les premières roues du train tournant à la vitesse du câble 10 pour synchroniser le déplacement du chariot 22, tandis que les roues 38 suivantes décélèrent le chariot 22 désaccouplé du câble 10 et roulant sur le rail 40.At the entrance to the station 12 is arranged parallel to the cable 10 a transfer rail 40 on which the rollers 32 engage. Simultaneously the lever 28 for controlling the opening of the clamp 24 approaches the ramp 30 to open the clamp 24 and uncoupling the carriage 22 from the cable 10. A slight relative movement of the carriage 22 relative to the cable 10 releases the latter from the clamp 24. A set of tires wheels 38, carried by a beam 42 parallel to the rail 40, cooperate with the plate 36 of the carriage 22 for driving the latter. The wheels 38 are connected to a motor 16 by a cardan transmission 41 and a reduction gear 43 or by belt transmissions, the first wheels of the train rotating at the speed of the cable 10 to synchronize the movement of the carriage 22, while the wheels 38 following decelerate the carriage 22 uncoupled from the cable 10 and rolling on the rail 40.

Le rail 40 s'étend en demi-boucle dans la station pour rejoindre l'autre brin du câble 10 constituant l'autre voie du télésiège en passant devant une zone d'embarquement 44 si la station 12 est une station d'embarquement. Il est clair que cette station peut être une station de débarquement ou comporter à la fois un quai de débarquement et un quai d'embarquement des passagers, notamment des skieurs.The rail 40 extends in a half-loop in the station to join the other strand of the cable 10 constituting the other path of the chairlift passing in front of a boarding area 44 if the station 12 is a boarding station. It is clear that this station can be a landing station or include both a landing platform and a platform for boarding passengers, especially skiers.

A la sortie du train de roues d'entraînement 38 le chariot 22 est pris en charge par une chaîne 46 à taquets 48 d'entraînement ou de retenue, qui s'étend en boucle fermée le long du rail de transfert 40 pour entraîner positivement les chariots 22 à vitesse réduite. Tout autre système de propulsion des chariots est bien entendu utilisable..At the exit of the drive wheel train 38 the carriage 22 is supported by a chain 46 with cleats 48 for drive or restraint, which extends in a closed loop along the transfer rail 40 to positively drive the carriages 22 at reduced speed. Any other propulsion system for trucks is of course usable.

La chaîne 46 est entraînée par un moteur 50 qui pourrait être le moteur 16 d'entraînement des roues 38.The chain 46 is driven by a motor 50 which could be the motor 16 for driving the wheels 38.

La sortie de la station 12 est équipée d'une manière analogue d'un train de roues 38 entraînées par un moteur 52, qui accélèrent le chariot 22 et synchronisent sa vitesse avec celle du câble 10 avant le réaccouplement par fermeture de la pince 24 sur le câble 10. De tels télésièges, à sièges débrayables dans les stations, sont connus et permettent un embarquement et débarquement à vitesse réduite, le câble 10 défilant à grande vitesse en continu.The output of the station 12 is similarly equipped with a train of wheels 38 driven by a motor 52, which accelerate the carriage 22 and synchronize its speed with that of the cable 10 before re-coupling by closing the clamp 24 on the cable 10. Such chairlifts, with detachable seats in the stations, are known and allow boarding and disembarking at reduced speed, the cable 10 traveling at high speed continuously.

La poulie de renvoi 14 est portée par un chariot 56 monté à coulissement sur l'ossature 54 de la station pour assurer la tension du câble 10.The return pulley 14 is carried by a carriage 56 slidably mounted on the frame 54 of the station to ensure the tension of the cable 10.

Une roue dentée 58 est rigidement fixée à la poulie 14 pour entraîner par un pignon 60 et un multiplicateur 62, par exemple à engrenages, un alternateur 64 fixé au chariot 56.A toothed wheel 58 is rigidly fixed to the pulley 14 to drive, by a pinion 60 and a multiplier 62, for example with gears, an alternator 64 fixed to the carriage 56.

L'alternateur 64 tourne à une vitesse proportionnelle à celle du câble 10 et délivre un courant de fréquence proportionnelle à cette vitesse.The alternator 64 rotates at a speed proportional to that of the cable 10 and delivers a frequency current proportional to this speed.

La figure 4 représente une variante dans laquelle la poulie 14 est une poulie motrice, entraînée en rotation par un moteur 66 par l'intermédiaire d'un réducteur 68. L'alternateur 64 est accouplé à l'arbre grande vitesse du réducteur 68 par une transmission à courroies trapézoïdales qui assure une rotation de l'alternateur à une vitesse multiple de celle de la poulie 14.FIG. 4 represents a variant in which the pulley 14 is a drive pulley, driven in rotation by a motor 66 by means of a reduction gear 68. The alternator 64 is coupled to the high speed shaft of the reduction gear 68 by a transmission with V-belts which rotates the alternator at a speed multiple of that of the pulley 14.

Le courant délivré par l'alternateur 64 n'est pas modifié par le mode d'entraînement de l'alternateur, lequel pourrait d'ailleurs être différent.The current delivered by the alternator 64 is not modified by the alternator drive mode, which could moreover be different.

L'alternateur 64 est relié aux moteurs 16, 50, 52 par des câbles trip basés 70, dont seul celui alimentant le moteur 16 est représenté sur la figure 5.The alternator 64 is connected to the engines 16, 50, 52 by trip-based cables 70, of which only the one supplying the engine 16 is shown in FIG. 5.

Les trois enroulements R S T de phase de l'alternateur 64, reliés au câble 70, fournissent également le courant d'excitation à un enroulement d'excitation 72 de l'alternateur 64 par un circuit 73, comprenant un bloc redresseur 74.The three phase windings R S T of the alternator 64, connected to the cable 70, also supply the excitation current to an excitation winding 72 of the alternator 64 by a circuit 73, comprising a rectifier block 74.

L'alternateur 64 comporte un deuxième enroulement d'excitation 76 donnété à un accumulateur 78 par un circuit 80, dans lequel sont insérés un interrupteur 82 à commande centrifuge et un bloc régulateur 84.The alternator 64 comprises a second excitation winding 76 given to an accumulator 78 by a circuit 80, into which are inserted a switch 82 with centrifugal control and a regulator block 84.

L'intérrupteur 82 est commandé par l'alternateur 64 pour se fermer automatiquement lorsque la vitesse de l'alternateur devient inférieure à une vitesse de seuil prédéterminée (et différente de zéro).The switch 82 is controlled by the alternator 64 to close automatically when the speed of the alternator becomes lower than a predetermined threshold speed (and different from zero).

L'alimentation du deuxième enroulement d'excitation 76 permet d'accroître l'excitation à basse vitesse et de conserver les caractéristiques de l'alternateur pour une alimentation synchrone du moteur 16. On évite ainsi tout décrochage pendant les périodes de fonctionnement à faible vitesse.The supply of the second excitation winding 76 makes it possible to increase the excitation at low speed and to maintain the characteristics of the alternator for synchronous supply of the engine 16. This thus avoids stalling during periods of operation at low speed .

Il est clair que l'intérrupteur centrifuge 82 peut être commandé d'une manière différente, par exemple en fonction des caractéristiques ou de la fréquence du courant.It is clear that the centrifugal switch 82 can be controlled in a different way, for example as a function of the characteristics or of the frequency of the current.

Sur la figure 6, qui illustre une variante du schéma électrique, l'alternateur 64 comporte un enroulement d'excitation 72 unique, alimenté par le bloc redresseur 74 de la manière décrite ci-dessous.In FIG. 6, which illustrates a variant of the electrical diagram, the alternator 64 comprises a single excitation winding 72, supplied by the rectifier block 74 in the manner described below.

Dans le circuit 73 d'auto-excitation est inséré un régulateur 86 faisant varier le courant d'excitation en fonction de la fréquence du courant.In the self-excitation circuit 73 is inserted a regulator 86 varying the excitation current as a function of the frequency of the current.

Le régulateur 86 peut être un filtre dont la conductance est plus grande pour des courants de basse fréquence. L'excitation de l'alternateur varie automatiquement avec sa vitesse pour conserver un synchronisme sur une large plage de vitesses.The regulator 86 can be a filter whose conductance is greater for low frequency currents. The excitation of the alternator varies automatically with its speed to maintain synchronism over a wide range of speeds.

Le filtre 86 peut être remplacé par un rhéostat commandé par un détecteur de vitesse ou tout autre moyen équivalent.The filter 86 can be replaced by a rheostat controlled by a speed detector or any other equivalent means.

Ces moyens de réglage de l'excitation ne nécessitent pas de source auxiliaire et sont avantageusement incorporés au moteur.These excitation adjustment means do not require an auxiliary source and are advantageously incorporated in the motor.

La figure 7 illustre un mode de mise en oeuvre préférentiel dans lequel l'alternateur 64 comporte en plus de l'enroulement d'excitation 72 un aimant parmanent 88 d'excitation, dont l'intensité magnétique est suffisante pour que l'alternateur délivre un courant, même à faible vitesse, suffisant pour entraîner le moteur.FIG. 7 illustrates a preferred embodiment in which the alternator 64 comprises, in addition to the excitation winding 72, a permanent excitation magnet 88, the magnetic intensity of which is sufficient for the alternator delivers a current, even at low speed, sufficient to drive the motor.

Il est clair que l'alternateur 64 peut alimenter un moteur unique, accouplé mécaniquement à l'ensemble des roues de friction 38 ou autres moyens 46 de propulsion et que les transmissions mécaniques peuvent être d'un type quelconque, par exemple à courroies trapézoïdales.It is clear that the alternator 64 can supply a single engine, mechanically coupled to all of the friction wheels 38 or other propulsion means 46 and that the mechanical transmissions can be of any type, for example with V-belts.

La poulie de renvoi peut également entraîner plusieurs alternateurs, chacun alimentant un moteur synchrone.The idler pulley can also drive several alternators, each supplying a synchronous motor.

La liaison par câble électrique entre l'alternateur et le moteur autorise un déplacement relatif, notamment du chariot de tension.The connection by electric cable between the alternator and the engine allows relative movement, in particular of the tension carriage.

L'accumulateur électrique peut être rechargé par l'alternateur 64 pendant les périodes de fonctionnement à vitesse normale ou à grande vitesse, rendant l'ensemble autonome.The electric accumulator can be recharged by the alternator 64 during periods of operation at normal speed or at high speed, making the assembly autonomous.

L'invention est nullement limitée au mode de mise en oeuvre plus particulièrement décrit.The invention is in no way limited to the mode of implementation more particularly described.

Claims (10)

1. Aerial ropeway installation, notably a detachable chair lift or gondola lift, having a rope (10) extending in an endless loop between two stations (12), in which it passes on return bull- wheels (14), one of which is the drive wheel, the loads, notably the cars or chairs (18) being coupled to the rope (10) on the line and detached in the stations to run on transfer rails (40)fitted with means (38, 46) of driving at a speed proportional to that of the rope, characterized in that said driving means (38, 46) comprises a synchronous electric drive motor (16, 50, 52), supplied with alternating current by an electrical alternator (14), mechanically connected to the station bull-wheel by a desmodromic mechanical link (58, 60, 62, 66, 68) ensuring that the alternator rotates at a multiple speed of that of the bull-wheel.
2. Installation according to claim 1, characterized in that the alternator (64) is mechanically connected to the bull-wheel (14) by a multiplier toothed gear device.
3. Installation according to claim 1, wherein the return wheel is the rope drive wheel (14), characterized in that the alternator (64) is coupled to the high speed shaft of the reducer (68) which drives the drive wheel.
4. Installation according to claim 1, 2 or 3, characterized in that the alternator (64) motor (16, 50, 52) transmission block is designed so as to provide a synchronous driving over a speed range varying at least from 1 to 10.
5. Installation according to claim 4, characterized in that the alternator (64) comprises an additional excitation means (76, 78, 86) at low speed to maintain the synchronous rotation.
6. Installation according to claim 5, characterized in that said additional excitation means comprises an electrical battery (78) connected to an alternator (64) excitation coil (76) by a switch (82) designed to close automatically when the rotation is lower than a preset threshold.
7. Installation according to claim 5 or 6, characterized in that said excitation coil (76) powered by said battery (78) is a coil additional to the normal alternator excitation (72).
8. Installation according to claim 4, having a self-excitation alternator (64), characterized in that the power circuit (73) of the excitation coil (72) comprises a control means (86) designed to increase the excitation current when the rotation speed is low.
9. Installation according to claim 8, characterized in that said circuit (73) comprises a low pass filter (86).
10. Installation according to claim 4, characterized in that the alternator (64) comprises a normal excitation coil (72) and an additional permanent excitation magnet (88).
EP85401957A 1984-10-15 1985-10-08 Cable car or chair lift with an electric drive Expired EP0181243B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401957T ATE39447T1 (en) 1984-10-15 1985-10-08 DETACHABLE CABLE CAR WITH ELECTRIC DRIVE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8415865 1984-10-15
FR8415865A FR2571674B1 (en) 1984-10-15 1984-10-15 CUT-OFF CABLE OR TELESCOPE WITH ELECTRIC TRANSMISSION

Publications (2)

Publication Number Publication Date
EP0181243A1 EP0181243A1 (en) 1986-05-14
EP0181243B1 true EP0181243B1 (en) 1988-12-28

Family

ID=9308713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401957A Expired EP0181243B1 (en) 1984-10-15 1985-10-08 Cable car or chair lift with an electric drive

Country Status (7)

Country Link
US (1) US4641584A (en)
EP (1) EP0181243B1 (en)
JP (1) JPH0665547B2 (en)
AT (1) ATE39447T1 (en)
CA (1) CA1230572A (en)
DE (1) DE3566991D1 (en)
FR (1) FR2571674B1 (en)

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Publication number Priority date Publication date Assignee Title
FR2598373B1 (en) * 1986-05-06 1988-09-02 Pomagalski Sa LAYOUT OF TRANSFER AND / OR GARAGE TRACK FOR A CABLE CAR OR A CUT-OFF CABLE
CH671552A5 (en) * 1986-06-17 1989-09-15 Von Roll Transportsysteme
CH672461A5 (en) * 1986-12-18 1989-11-30 Von Roll Transportsysteme
FR2661147B1 (en) * 1990-04-24 1992-07-24 Pomagalski Sa TENSIONER TENSION END STATION.
CA2097204A1 (en) * 1992-06-15 1993-12-16 Paul William Spencer Maintenance monitoring system for detachable ski lift carrier vehicles
FR2918628B1 (en) * 2007-07-10 2009-08-28 Pomagalski Sa AIRCRAFT TRANSPORTATION SYSTEM COMPRISING A VEHICLE TRANSFER CIRCUIT WITH A TORQUE MOTOR
US8573133B2 (en) * 2009-09-22 2013-11-05 Pomagalski Passenger transport installation comprising independent vehicles travelling on tracks and hauled by cables, and method for transporting passengers
NZ592922A (en) * 2010-08-19 2012-08-31 Innova Patent Gmbh Pivotally mounted rocker carrying supporting roller(s) via which tire wheels are driven
EP3137360B1 (en) * 2014-05-02 2019-01-09 Dimensione Ingenierie S.r.l. A continuously moving cableway
CN105896899A (en) * 2014-11-30 2016-08-24 李启飞 Y-type groove cam electric speed regulation disc magnetic coupler
CN106080615B (en) * 2016-08-03 2018-05-08 安徽明雁齿轮有限公司 Big conveying mechanical formula freight ropeway dragger device
AT520445B1 (en) * 2017-10-19 2019-04-15 Innova Patent Gmbh Tire conveyor for means of transport

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Publication number Priority date Publication date Assignee Title
US2761097A (en) * 1953-07-17 1956-08-28 Tourneau Robert G Le Voltage regulating system
FR1401291A (en) * 1964-04-15 1965-06-04 Neyrpic Ets Device for receiving cable cars at the station
FR2094270A5 (en) * 1970-06-15 1972-02-04 Merlin Gerin
DE2060030A1 (en) * 1970-12-05 1972-06-15 Pohlig Heckel Bleichert Automated cable car station
JPS4916145A (en) * 1972-06-07 1974-02-13
US4015189A (en) * 1976-03-15 1977-03-29 Westinghouse Electric Corporation Supplemental field excitation for permanent magnet rotor of pilot exciter
FR2416821A2 (en) * 1977-06-02 1979-09-07 Montagner Rene IMPROVEMENT OF PASSENGER BOARDING PROCESSES AND FACILITIES ON A SUSPENDED MOBILE CARRIER STRUCTURE, ESPECIALLY FOR MECHANICAL ASCENT
FR2545433B1 (en) * 1983-05-02 1985-08-30 Pomagalski Sa END STATION OF A HEADSET OR A CABLE CAR OF ADJUSTABLE HEIGHT

Also Published As

Publication number Publication date
US4641584A (en) 1987-02-10
JPH0665547B2 (en) 1994-08-24
CA1230572A (en) 1987-12-22
FR2571674A1 (en) 1986-04-18
DE3566991D1 (en) 1989-02-02
FR2571674B1 (en) 1988-05-06
JPS61181762A (en) 1986-08-14
EP0181243A1 (en) 1986-05-14
ATE39447T1 (en) 1989-01-15

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