EP0015211B1 - Vorrichtung zur Geschwindigkeitsstabilisierung einer Seilförderanlage - Google Patents

Vorrichtung zur Geschwindigkeitsstabilisierung einer Seilförderanlage Download PDF

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Publication number
EP0015211B1
EP0015211B1 EP80400247A EP80400247A EP0015211B1 EP 0015211 B1 EP0015211 B1 EP 0015211B1 EP 80400247 A EP80400247 A EP 80400247A EP 80400247 A EP80400247 A EP 80400247A EP 0015211 B1 EP0015211 B1 EP 0015211B1
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EP
European Patent Office
Prior art keywords
return
sheave
cable
speed
station
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
EP80400247A
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English (en)
French (fr)
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EP0015211A1 (de
Inventor
Henri Gaudet
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.)
Compagnie Miniere de lOgooue Comilog
Original Assignee
Compagnie Miniere de lOgooue Comilog
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Filing date
Publication date
Application filed by Compagnie Miniere de lOgooue Comilog filed Critical Compagnie Miniere de lOgooue Comilog
Priority to AT80400247T priority Critical patent/ATE2944T1/de
Publication of EP0015211A1 publication Critical patent/EP0015211A1/de
Application granted granted Critical
Publication of EP0015211B1 publication Critical patent/EP0015211B1/de
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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

Definitions

  • the invention relates to a continuous cable overhead cable transport installation between a power station and a return station, along a forward and a return track, of load vehicles carrying the load staggered empty on along one of said tracks and loaded along the other track, being disengageably coupled to said cable, said tracks having intermediate support pylons and said cable passing in the driving station on a driving pulley cable drive and in the return station on a return end pulley.
  • CH-A-340 856 Several sections are frequently placed end to end, vehicles passing continuously from one section to another, by traveling on transfer rails and connecting successive sections.
  • the vehicles are coupled to the tractor or tractor-carrier cable at an imposed rate to ensure regular intervals between successive vehicles and a uniform distribution of the load along the tracks.
  • This regular distribution must be maintained along the entire installation, and it is easy to understand that the risks of phase shift are significant at the end of the line after several changes of sections, each of which disturbs the timing by travel speeds of the tracks. different transfers from one vehicle to another.
  • the launching speed of the vehicles on the transfer tracks which is equal to that of the cable at the instant of the uncoupling of the vehicle, varies with the direction and the amplitude of the oscillation at this instant and at this location.
  • the oscillation phenomena of the line also affect the adhesion of the coupling clamps of vehicles loaded on the cable, when these clamps are trapped by gravity on the cable and they are the cause of wear of the support elements, especially pebbles.
  • the object of the present invention is to remedy these drawbacks and to allow the production of an installation equipped with a simple and effective stabilization device, suitable for operation at increased speed of the installation.
  • the installation according to the invention is characterized in that a stabilization device is associated with the return pulley, the latter being coupled to a rotary electric machine capable of operating as a motor to exert a motor torque or as a generator to exert a braking torque of this return pulley and that a means for measuring the speed of rotation of the return pulley provides a comparator with a signal representative of the speed of the return pulley compared in said comparator with a speed signal displayed, said comparator controlling, as a function of the difference between said speed signals of the return pulley and the speed displayed, a power supply device for said motive machine, generator for exerting a motor torque or a braking torque of the pulley return, so as to stabilize the rotation of the return pulley and the running of the aerial cable along said tracks.
  • a stabilization device is associated with the return pulley, the latter being coupled to a rotary electric machine capable of operating as a motor to exert a motor torque or as a generator to exert a braking torque of this return pulle
  • the speed displayed must correspond to the speed at which the cable is driven to the drive station and the electric machine acts as a regulator of the rotation of the return pulley.
  • the value of the displayed speed should be modified, automatically or manually, to adapt it to the variation in cable speed. This results in a notable reduction in the jolts and oscillations during these maneuvers.
  • the vehicles In installations with several successive sections, each equipped with a device for stabilizing the return pulley, the vehicles, uncoupled from the cable at the level of the return pulley, engage on the transfer track at an initial speed corresponding to the stabilized speed of the return pulley and substantially equal for all vehicles, which travel the transfer path at substantially the same rate to maintain regular spacing.
  • the electric machine coupled to the return pulley is advantageously a motor, DC generator powered by a double bridge or thyristor converter.
  • a supply of an electric motor, in particular of an elevator, by a double thyristor bridge, is described in the document DE-A-1 463 653.
  • the adjustment of the speed and the direction of rotation of the motor is controlled by modification the thyristor ignition cycle.
  • the cable is driven by a single motor.
  • the power of the electric machine associated with the return pulley is a fraction of the then of the drive pulley drive motor of the installation.
  • the invention applies essentially to conveyors with very long sections and at high throughput, for example of several hundred tonnes per hour, but it is clear that it is applicable to any cable conveyor, the operation of which it improves by reducing or eliminating the cable oscillations, which can be a tractor - carrier cable or a tractor cable.
  • a section 10 of an overhead cable transport installation of which only the return station 12 is shown in FIG. 1, is connected to a successive section 14, of which only the motor station 16 is shown in FIG. 1, the return station being identical to the return station 12 in section 10, just as the drive station in section 10 is identical to the drive station in section 12.
  • the carrier may have a large number of sections for transport, especially of materials, over great distances, for example several tens of kilometers.
  • the material is loaded at the drive station of the first section and unloaded at the return station of the last section, intermediate storage possibilities can be provided between two successive sections.
  • the respectively driving and return stations of the different sections are identical and only those 16 and 12, shown in FIG. 1, will be described later.
  • the conveyor is of the single cable type with an endless cable 18 extending in a loop between the driving station and the return station, one of the strands constituting a loaded forward path and the other a empty return channel.
  • the cable 18 passes over a return pulley 20 with vertical axis 22.
  • the drive station 16 the cable 18 passes over a drive pulley 26 and a return pulley 24, with horizontal axis whose spacing corresponds to that of the conveyor tracks, before passing over a tension pulley 28 with vertical axis, mounted on a movable carriage (not shown) in the direction of the conveyor tracks.
  • the carriage carrying the tension pulley 28 is connected by a cable 30 passing over idler rollers 32 to a counterweight 34 for keeping the cable 18 under tension.
  • the pulley 26 is rotated by an electric motor (not shown) and it communicates to the cable loop 18 a continuous scrolling movement. Rollers 36 for supporting the cable 18 are staggered along the tracks, being carried by pylons (not shown).
  • Vehicles 38 in the form of wagons have rollers 40 for circulation on rails 42 in stations and a cable coupling clamp 18 in line.
  • the vehicles 38 are coupled to the cable 18 at the power station, which constitutes the loading station and they travel the outward path while being loaded and the return path empty.
  • the passage from one section 10 to another 14 is carried out by rolling the wagons 38 on transfer rails 42 in a manner well known to specialists, the uncoupling of the cable 18 being effected by opening the clamp at the end of section, in particular by lifting the vehicles 38 relative to the cable 18 by the rollers 40 engaging on the rails 42.
  • On the transfer rails 42 the vehicles 38 travel by inertia being braked or accelerated by ramps or gradients.
  • Loading and unloading or intermediate storage are not part of the invention and will not be described.
  • the synchronization of the vehicles 38 with the cable 18 at the end of the launching ramp by gravity and before their coupling can be carried out by any suitable means, for example by a drive belt 44.
  • a timing means 46 At the entrance to the launching ramp can be arranged a timing means 46.
  • the shaft 22 of the return pulley 20 is coupled via a reduction gear 50 to an electric rotary machine 48.
  • the machine 48 which can operate as a motor or as a brake generator, is supplied by an electrical power supply unit 52 controlled by a comparator 54 which receives on the one hand a signal from a tachometric generator 56, coupled to the machine 48 and on the other hand a signal from a display device 58.
  • the machine 48 is advantageously direct current, the armature current of which is supplied by a thyristor bridge.
  • the signal displayed on the device 58 must correspond to the speed of drive of the cable 18 to the motor station 16 and the comparator 54 checks at all times whether the speed of rotation of the return pulley 20, measured by the tachometer generator 56, corresponds at the speed displayed. If the speed of the return pulley is too slow. the comparator 54 detects this difference and modifies the ignition of the thyristors to operate the machine 48 as a cable drive motor. This motor force remains as long as a speed difference is detected by the comparator 54. If on the other hand the return pulley 20 rotates too quickly the comparator drives the power supply to operate the machine 48 in electric brake, which brakes the cable running 18.
  • the inventive device stabilizes the speed of rotation of the return pulley and consequently the running speed of the cable 18 at the end of the section. This results on the one hand in a constant speed of launching of the vehicles 38 on the transfer rails 42, a speed which corresponds to that of the cable 18 at the time of uncoupling of the vehicle and on the other hand a significant elimination or reduction of the oscillations along of the line. This reduction allows an increase in speed of operation of the installation and thereby the flow.
  • the speed displayed 58 must at all times correspond to the speed of the drive station if one wishes to avoid an overload and untimely action of the machine 48, operating either as a motor or as a brake.
  • the adjustment can be made by remote transmission or more simply manually following precise instructions or automatically by a program.
  • the stabilization device does not require any electrical control or supply link between the drive station and the return station, which can be distant by several kilometers.
  • the device is simple and does not use any particular fragile material, the power regulation device can of course be of any type.
  • the stabilization device consumes practically no energy, the driving energy being recovered at least partially during braking.
  • the stabilization effect described in application to a conveyor with several successive sections, can of course be applied to a conveyor with a single section for materials or people, in particular cable cars or chairlifts. It allows an increase in the operating speed and a decrease in wear of the moving parts.
  • the power station can be upstream or downstream and the transporter can be of the single-cable or two-cable type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Electric Cable Installation (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Braking Arrangements (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Chain Conveyers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (8)

1. Seilförderanlage mit kontinuierlich zwischen einer Antriebsstation (16) und einer Umlenkstation (12) längs einer Hinwegbahn und einer Rückkehrbahn umlaufenden Lasttragwagen (38), die längs der einen Bahn leer und längs der anderen Bahn beladen gestaffelt und entkuppelbar an dem genannten Seil gekuppelt sind, wobei die genannten Bahnen mit Zwischentragstützen versehen sind und das genannte Seil (18) in der Antriebsstation (16) auf einer das Seil antreibenden Antriebsscheibe (26) und in der Umlenkstation (12) auf einer Umlenkendscheibe (20) läuft, dadurch gekennzeichnet, dass eine Stabilisierungsvorrichtung mit der Umlenkscheibe (20) verbunden ist, wobei letztere an eine als Antriebsmotor und als Bremsgenerator der Umlenkscheibe (20) arbeitende elektrische Drehmaschine (48) gekuppelt ist, und dass eine die Drehgeschwindigkeit der Umlenkscheibe (20) messende Messvorrichtung (56) ein Signal der Geschwindigkeit der Umlenkscheibe an einen Vergleicher (54) liefert, welches Signal in dem genannten Vergleicher mit einem Einstellgeschwindigkeitssignal (58) verglichen wird, welcher Vergleicher (54) in Abhängigkeit von dem Unterschied zwischen den genannten Geschwindigkeitssignalen der Umlenkscheibe und der Geschwindigkeitseinstellung eine Versorgungsvorrichtung (52) der genannten Motor-Generatormaschine (48) steuert, um auf die Umlenkscheibe eine Antriebskraft oder eine Bremskraft auszuüben zum Stabilisieren der Drehung der Umlenkscheibe und des Umlaufens des Seiles längs der genannten Bahnen.
2. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass die genannte Umlenkscheibe (20) eine feststehende Scheibe mit senkrechter Welle ist, und dass die Spannscheibe (28) und die Antriebsscheibe (26), die auf den die leeren Wagen (38) fördernden Strang des Seiles wirken, in der Antriebsstation aufgestellt sind.
3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Wagen (38) an das Seil (18) durch entkuppelbare Klemmen gekuppell sind.
4. Anlage nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass sie zumindest mit zwei aufeinanderfolgenden Teilstrecken (10, 14) versehen ist, die durch Bahnen (42) zum fortlaufenden Überführen der Wagen (38) verbunden sind, wobei die Umlenkscheiben (20) jeder der genannten Teilstrecken mit einer Stabilisierungsvorrichtung versehen sind.
5. Anlage nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die genannte elektrische Maschine (48) ein Gleichstrommotor ist, der als Generator arbeiten kann und durch eine Thyristorbrücke gespeist ist.
6. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass der genannte Vergleicher (54) das Zünden der genannten Thyristoren steuert, um die Ankerversorgungsspannung zu ändern und das Arbeiten der Maschine (48) als Motor oder als Bremsgenerator zu bestimmen.
7. Anlage nach Anspruch 1, 5 oder 6, dadurch gekennzeichnet, dass die Arbeitsleistung der an die Umlenkscheibe (20) gekuppelten elektrischen Maschine (48) einen Bruchteil der Arbeitsleistung des Antriebsmotors der Antriebsscheibe der Anlage bildet.
8. Anlage nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass ein Tachogenerator (56) an die genannte elektrische Maschine (48) gekuppelt ist, um ein der Drehgeschwindigkeit der Umlenkscheibe (20) entsprechendes Spannungssignal zu liefern.
EP80400247A 1979-02-27 1980-02-21 Vorrichtung zur Geschwindigkeitsstabilisierung einer Seilförderanlage Expired EP0015211B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400247T ATE2944T1 (de) 1979-02-27 1980-02-21 Vorrichtung zur geschwindigkeitsstabilisierung einer seilfoerderanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7905909A FR2450187A1 (fr) 1979-02-27 1979-02-27 Dispositif de stabilisation de vitesse pour installation de transport a cable aerien
FR7905909 1979-02-27

Publications (2)

Publication Number Publication Date
EP0015211A1 EP0015211A1 (de) 1980-09-03
EP0015211B1 true EP0015211B1 (de) 1983-04-06

Family

ID=9222873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400247A Expired EP0015211B1 (de) 1979-02-27 1980-02-21 Vorrichtung zur Geschwindigkeitsstabilisierung einer Seilförderanlage

Country Status (8)

Country Link
US (1) US4401034A (de)
EP (1) EP0015211B1 (de)
JP (1) JPS55140645A (de)
AT (1) ATE2944T1 (de)
BR (1) BR8001130A (de)
DE (1) DE3062571D1 (de)
FR (1) FR2450187A1 (de)
YU (1) YU50680A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504480B1 (fr) * 1981-04-22 1985-10-18 Creissels Denis Sa Transporteur aerien pulse debrayable
FR2539369B1 (fr) * 1983-01-17 1986-03-07 Pomagalski Sa Dispositif cadenceur pour telecabine ou telesiege debrayable
FR2552726B1 (fr) * 1983-10-03 1985-11-29 Creissels Denis Dispositif d'entrainement des cables d'une installation de transport a cables aeriens
US4650264A (en) * 1983-12-12 1987-03-17 Spacesaver Corporation Control system for vertical storage equipment
FR2571675B1 (fr) * 1984-10-15 1988-03-18 Pomagalski Sa Installation de transport a cable aerien a plusieurs sections
CH671552A5 (de) * 1986-06-17 1989-09-15 Von Roll Transportsysteme
FR2670451A1 (fr) * 1990-12-18 1992-06-19 Pomagalski Sa Telecabine ou telesiege debrayage a deux boucles de cable.
FR2837226B1 (fr) 2002-03-18 2004-09-10 Roger Pathoux Dispositif exercant une manoeuvre du pied actionnant des lamelles pour faciliter l'evacuation dans les egouts des dejections de la rue avec l'aide d'une canne reliee a un monnayeur
CH708591B1 (fr) * 2013-09-18 2017-08-31 Bureau Technique Paul Glassey 5A Dispositif d'entraînement de remontées mécaniques.
US11878723B2 (en) * 2019-06-26 2024-01-23 ExxonMobil Technology and Engineering Company System for transporting sand for wellbore operations

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH340856A (de) * 1956-02-14 1959-09-15 Theodor Bell & Cie Ag Anfahr-Hilfseinrichtung für die Seilbahnwagen an Hängeseilbahnen mit dauernd umlaufendem Zugseil, von dem die Seilbahnwagen beim Einfahren in eine Station gelöst und mit dem sie beim Auslaufen wieder gekuppelt werden

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US2418104A (en) * 1943-08-16 1947-03-25 Asea Ab Signaling arrangement in a cable system
US2625257A (en) * 1951-09-14 1953-01-13 Webb Co Jervis B Speed control of conveyer drives
US2782902A (en) * 1952-11-08 1957-02-26 Goodman Mfg Co Protective devices for belt conveyors
US2883036A (en) * 1956-07-12 1959-04-21 Clark Controller Co Conveyor controls
CH373415A (de) * 1959-09-21 1963-11-30 Sepp Ing Hochmuth Antriebsvorrichtung an Transporteinrichtung
FR1313939A (fr) * 1961-11-22 1963-01-04 Expl Pour Le Transp Continu Pa Dispositif d'entraînement pour matériel de transport roulant sur une voie
DE1234834C2 (de) * 1964-03-24 1973-01-11 Siemens Ag Verfahren und Anordnung zur Steuerung oder Regelung der Drehzahl eines in beiden Drehrichtungen betriebenen Gleichstrommotors
US3221667A (en) * 1964-04-13 1965-12-07 Electro Watt Inc Rope tow
DE1463653A1 (de) * 1964-10-30 1969-08-07 Siemens Ag Anordnung zur Steuerung oder Regelung der Drehzahl eines Gleichstrommotors
FR1459173A (fr) * 1965-10-04 1966-04-29 Siemens Ag Procédé pour la commande ou le réglage de la vitesse d'un moteur à courant continu et dispositif pour la mise en oeuvre de ce procédé
DE1588783B2 (de) * 1967-09-30 1973-02-08 Siemens AG, 1000 Berlin u 8000 München Einrichtung zur steuerung eines umkehrstromrichters
US4051415A (en) * 1975-03-05 1977-09-27 Braemar Computer Devices, Inc. Web speed control system
US3989989A (en) * 1975-04-30 1976-11-02 Litton Systems, Inc. Conveyor overspeed-underspeed and/or slip detector
US4032003A (en) * 1976-04-30 1977-06-28 Melvin Corporation Hydrostatic conveyor drive

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH340856A (de) * 1956-02-14 1959-09-15 Theodor Bell & Cie Ag Anfahr-Hilfseinrichtung für die Seilbahnwagen an Hängeseilbahnen mit dauernd umlaufendem Zugseil, von dem die Seilbahnwagen beim Einfahren in eine Station gelöst und mit dem sie beim Auslaufen wieder gekuppelt werden

Also Published As

Publication number Publication date
JPS55140645A (en) 1980-11-04
EP0015211A1 (de) 1980-09-03
BR8001130A (pt) 1980-11-04
YU50680A (en) 1983-12-31
FR2450187B1 (de) 1982-09-17
US4401034A (en) 1983-08-30
DE3062571D1 (en) 1983-05-11
FR2450187A1 (fr) 1980-09-26
ATE2944T1 (de) 1983-04-15

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