EP1270488B1 - Aufzugsantrieb - Google Patents

Aufzugsantrieb Download PDF

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Publication number
EP1270488B1
EP1270488B1 EP20020013883 EP02013883A EP1270488B1 EP 1270488 B1 EP1270488 B1 EP 1270488B1 EP 20020013883 EP20020013883 EP 20020013883 EP 02013883 A EP02013883 A EP 02013883A EP 1270488 B1 EP1270488 B1 EP 1270488B1
Authority
EP
European Patent Office
Prior art keywords
pulley
rope
elevator installation
movable element
car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20020013883
Other languages
English (en)
French (fr)
Other versions
EP1270488A3 (de
EP1270488A2 (de
Inventor
Eric Rossignol
Philipp Angst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP20020013883 priority Critical patent/EP1270488B1/de
Priority to ES02013883T priority patent/ES2305153T3/es
Publication of EP1270488A2 publication Critical patent/EP1270488A2/de
Publication of EP1270488A3 publication Critical patent/EP1270488A3/de
Application granted granted Critical
Publication of EP1270488B1 publication Critical patent/EP1270488B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
    • B66B9/027—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rope climbing devices
    • 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
    • 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
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0476—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with friction gear, e.g. belt linking motor to sheave

Definitions

  • the present invention relates to an elevator installation.
  • the Swiss patent CH-252872 describes an elevator installation with a closed rope running on six pulleys.
  • the closed rope is driven by a motor, which drives in the same direction two pulleys with different diameters arranged on the motor shaft.
  • the rotation speed of these pulleys is different.
  • the speed of the car is therefore independent from the motor speed. So a gear mechanism with a speed reduction factor is achieved.
  • a problem of this solution is that the speed reduction factor is achieved by pulleys with different diameter, which are arranged directly on the motor.
  • the gear ratio is fix and can be varied only by changing the two pulleys on the motor shaft.
  • Further another problem is the use of several pulleys arranged fixed in the hoistway. This solution brings therefore to a complex elevator installation with high costs for the realization and for the maintenance. Moreover a counterweight is absolutely necessary to balance the whole elevator installation.
  • FR 1377248 discloses an elevator installation with a movable element, which is moved by a motor by means of a closed rope running on an upper pulley and on a lower pulley, whereby the closed rope comprises a first rope portion and a second rope portion, wherein a power transmission means interacting with the first rope portion and with the second rope portion is arranged on the movable element.
  • This solution exhibits the disadvantage that a variation of the direction and of the speed of the car must be carried out through a variation of the speed of the motor.
  • the present invention as defined in claim 1 proposes an elevator installation that solves all the above-cited problems and provides an elevator installation with simple construction, by which the number of the elevator components arranged in the hoistway can be reduced, whereby alternative solutions permitting in a simple way to vary the direction and the speed of the car independently from the speed of the motor are given.
  • the elevator installation according to claim 1 has in respect to the state of the art the advantages, that the variation of direction and the speed of the movable element can be made directly on the car and independently from the motor speed. Further no counterweight is absolutely necessary.
  • the elevator components arranged in the shaft are reduced.
  • Figure 1 illustrates the basic concept of the invention by describing an embodiment where no slip and no friction are considered. For better clarity the other usual elevators components are not shown.
  • the rope 1 is a closed rope 1, which can be a belt, running on a upper pulley 2 and on a lower pulley 3 arranged in an elevator hoistway H.
  • the upper pulley 2 is actuated by a motor M
  • the lower pulley 3 is a passive pulley.
  • the motor M can be for example directly coupled to the upper pulley 2 so that the upper pulley 2 can be also named traction pulley 2.
  • the lower pulley can also be named diverting pulley 3.
  • a first friction pulley 4 and a second friction pulley 5 are arranged on a movable element 8.
  • the movable element is in this case the elevator car 8.
  • first friction pulley 4 is linked together to the second friction pulley 5 by means of a double pulley system DPS comprising a first transmission pulley 6 and a second transmission pulley 7, which have different diameters.
  • the car 8 is linked to the rope 1 by means of the first friction pulley 4 and the second friction pulley 5.
  • the first friction pulley 4 interacts with a first rope portion 9 corresponding to the left rope portion in figure 1 and the second friction pulley 5 interacts with a second rope portion 10 corresponding to the right rope portion in figure 1 .
  • the first rope portion 9 is therefore linked to the second rope portion 10 by means of a power transmission mechanism PTM comprising in this embodiment the double pulley system DPS.
  • the car 8 is moving with the speed of the ropes ( ⁇ . wM . DM) multiplied by a factor (D3 - D4)/(D3 + D4) depending on the diameter of the two transmission pulleys 6 and 7.
  • This factor can be very small, by choosing the two diameters D3 and D4 almost equal.
  • This gear box GB is arranged on the car 8 away from the motor.
  • the direction and speed of the car 8 is set directly on the car, by means of the gear box GB, the gear ratio thereof is given by the difference of the diameters D3, D4.
  • the direction and the sped of the car can be therefore varied and controlled independently from the motor speed respectively from the rope speed.
  • Figure 2 illustrates another embodiment, where a better friction between the closed rope 1 and the first friction pulley 4 respectively the second friction pulley 5 is achieved.
  • the friction pulleys 4, 5 are coupled with additional pulleys 11, 12 on the car 8 to increase the contact between the rope 1 and the friction pulleys 4, 5.
  • the double pulley system DPS has the same function as in figure 1 .
  • the figure 3 illustrates an embodiment, where the stability of elevator installation is increased.
  • the first rope portion 9 runs substantially parallel to a first side 13 of the car 8 and the second rope portion 10 substantially parallel to a second side 14 of the car 8. So the load is equilibrate, and the friction on the not shown guide rail can be reduced.
  • an additional upper pulley 15 arranged in the hoistway is required.
  • a reversal pulley 16 is needed between the first transmission pulley 6 and the second transmission pulley 7 in order to reverse the rotation direction of the first transmission pulley 6 in respect to the second transmission pulley 7.
  • the balanced lift system is based on a small difference between the diameter D3 of the first transmission pulley 6 and the diameter D4 of the second transmission pulley 7 (for instance about 8%). If we build a system that can make variable the rapport of the above-mentioned diameters D3 and D4 of a few percent, we could change the speed of the car 8 while the speed of the motor remaining constant. For example if we vary the diameter D3 between 0 and 8%, we can vary the speed of the car between 0 and 1m/s.
  • FIG 4 is given an example of a mechanical system, which is able to vary continuously or for example step by step the gear ratio of the gear box GB of a few percent.
  • This mechanical system will be called mechanical speed deviator MSD in the following.
  • the disc-shaped first transmission pulley 6 and the disc-shaped second transmission pulley 7 of the above-mentioned embodiments are in the embodiment of figure 4 replaced by a first conic-shaped transmission pulley 6' and a second conic-shaped transmission pulley 7'.
  • a side of each of the conic-shaped transmission pulleys 6', 7' has a diameter D3', the other side a diameter D4', whereby the diameters D3' and D4' differ of a few percent. (for example 4 %).
  • the first conic-shaped transmission pulley 6' is positioned in the reverse position as the second conic-shaped transmission pulley 7' and they are linked together by a mobile pulley 17, that is movable on its axe 18.
  • the axe 18, also called control axe of the mechanical speed deviator MSD can move substantially parallel to the axes 19, 20 of the two conic-shaped transmission pulleys 6', 7'.
  • both conic-shaped transmission pulleys 6', 7' turn exactly at the same speed because the diameter at this point is (D3'+D4')/2.
  • Figure 5 illustrates an elevator installation similar to figure 3 , whereby the mechanical speed deviator MSD is used.
  • the control axe 18 of the mechanical speed deviator MSD can be actuated by an electromagnet or a motor. The power needed is low. By actuating the control axe 18 it is possible to generate an acceleration ramp or a deceleration ramp without any Alternating Current Variable Frequency (ACVF), the speed of the motor running the upper pulley 2 remaining constant. The speed variation is achieved therefore only by means of the mechanical speed deviator MSD.
  • ACVF Alternating Current Variable Frequency
  • Another advantage can be seen in the fact that the start of the trip can be made with the motor at full speed, which brings to a reduction of the motor size. The car can be stopped while the motor is running, an abrupt acceleration and the deceleration can therefore be avoided.
  • the mechanical speed deviator MSD can be used also to mechanically recognize the position of the elevator car 8 in the hoistway H. This.is illustrated in the figure 6 .
  • the control axe 18 of the mechanical speed deviator MSD is activated by cams arranged in the hoistway as for example: a lowest cam S1, an intermediate cam S2 and a highest cam S3. These cams S1, S2 and S3 are used for the deceleration of the car 8. Acceleration can be done with an electromagnet or a small motor actuating the same control axe 18.
  • the figure 7 illustrates an elevator installation, where the first rope portion 9 and the second rope portion 10 are linked by means of an usual gear box GB arranged on the car 8.
  • the first rope portion 9 and the second rope portion 10 run each additionally on three little pulleys 22 arranged near the gear box GB. These three little pulleys 22 have the purpose to increase the friction of each of the first and second rope portion 9, 10.
  • the car 8 is hanging between the upper pulley 2 and the lower pulley 3 fixed in the hoistway headroom and respectively in the pit. This has the advantage that the car's vertical movement is reduced while loading/unloading, the stiffness of the rope system is increased. Accelerations of the car of more than 1g are possible upwards as well downwards. In this case the motor is on the upper pulley 2.
  • a flywheel 23 can be used to accumulate/store kinetic energy, which can be by necessity reused. Also in this embodiment no counterweight is needed.
  • the gear ratio of the gear box GB determines the direction and the speed of the car independently from the motor speed. The motor may turn with constant speed.
  • FIG 8 is shown a closed rope elevator installation, whereby a first motor M1 and a second motor M2 are used.
  • the car 8 is supported by a first closed rope 24 and a second closed rope 25, actuated by the first motor M1 respectively by the second motor M2.
  • the first closed rope 24 runs on a first lateral side 13' of the car 8.
  • the second closed rope 25 runs on a second lateral side 14' of the car 8 opposite to the first lateral side 13'.
  • the first closed rope 24 runs further on a first set 26 of four little friction pulleys and the second closed rope 25 in the same manner with a second set 26' of four little friction pulleys.
  • the first set 26 and the second set 26' of little friction pulleys are linked together by a linking mechanism 27 on the car 8.
  • wM1, wM2 speed of motor M1 respectively
  • motor M2 DM diameter of traction pulleys moved by motor M1 and motor M2; in this case the two traction pulleys have the same diameter.
  • figure 9 The following figure 9 , figure 10 and figure 11 illustrate three possibilities to use one or more additional movable elements 28 in this case counterweights 28 with the above described elevator installation.
  • FIG 10 is shown an elevator installation, where both the motor M and the gear box GB are positioned on the car 8.
  • the lower pulley 3 has the flywheel 27 having the same function as in figure 7 .
  • two counterweights 28 are linked to the car 8 by means of two separate ropes 29.
  • the variation of the car speed by the embodiment of figure 11 can be done in the following way:
  • the closed rope can be also designed as a belt or as a vee-belt (V-belt) or as band or as chain or as other equivalent cables attending the same function. Naturally more than one rope can be used.
  • the motor can be arranged everywhere in the hoistway or on the movable element.
  • the movable element 8 or the additional movable element 28 can be an elevator car or a counterweight.
  • the gear box GB can be steplessly adjustable or having predetermined steps or having a constant gear ratio or other configurations.
  • the direction and the speed of the car can be varied, by maintaining and the motor turning at optimal constant speed during the trip of the car.
  • a steplessly variable gear box on the car permits the car to travel with a constant speed, even when the motor does not run at constant speed.
  • the invention allows an elevator design without counterweight and therefore a lightweight car.
  • the load on the ropes is the weight of the car plus passengers. If a separate counterweight is added, the whole weight of the car and maybe the weight of some passengers can be equalized by this counterweight, thus reducing the load of the ropes (not ropes of counterweight).
  • the flywheel 23 can be arranged coaxially or not coaxially to the upper pulley or to the lower pulley.
  • a gear mechanism can eventually be put between the flywheel and the upper pulley respectively the lower pulley.

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

Claims (11)

  1. Aufzugsanlage mit einem beweglichen Element (8), das durch einen Motor mittels eines auf einer oberen Riemenscheibe (2) und einer unteren Riemenscheibe (3) laufenden Endlosseils (1) bewegt wird, wobei das Endlosseil (1) einen ersten Seilabschnitt (9) und einen zweiten Seilabschnitt (10) umfasst, wobei ein mit dem ersten Seilabschnitt (9) und mit dem zweiten Seilabschnitt (10) zusammenwirkendes Kraftübertragungsmittel (PTM) an dem beweglichen Element (8) angeordnet ist und wobei das Kraftübertragungsmittel (PTM) ein Getriebe (GB) umfasst,
    dadurch gekennzeichnet, dass
    das Getriebe (GB) einen mechanischen Geschwindigkeitswechsler (MSD) umfasst, der eine erste kegelförmige Antriebsscheibe (6') mit einer ersten Längsachse (19) und eine zweite kegelförmige Antriebsscheibe (7') mit einer zweiten Längsachse (20) aufweist, wobei die erste kegelförmige Antriebsscheibe (6') mit der zweiten kegelförmigen Getriebeschreibe (7') mittels einer beweglichen Riemenscheibe (17) zusammenwirkt, die mittels einer an der beweglichen Riemenscheibe (17) angeordneten Steuerachse (18) im Wesentlichen parallel zur ersten und zweiten Längsachse (19, 20) beweglich ist.
  2. Aufzugsanlage nach Anspruch 1, bei der der erste Seilabschnitt (9) in die der Richtung des zweiten Seilabschnitts (10) entgegengesetzte Richtung verläuft.
  3. Aufzugsanlage nach Anspruch 1 oder 2, bei der das Kraftübertragungsmittel (PTM) eine Reibscheibe (4, 5, 11, 12) enthält, wobei das Endlosseil auf der an dem beweglichen Element (8) angeordneten Reibscheibe (4, 5, 11, 12) läuft.
  4. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der der erste Seilabschnitt (9) auf einer ersten Seite (13) des beweglichen Elements (8) läuft und der zweite Seilabschnitt (10) auf einer zweiten Seite (14) des beweglichen Elements (8) läuft, wobei die erste Seite (13) und die zweite Seite (4) symmetrisch zur mittleren Achse (CA) des beweglichen Elements (8) angeordnet sind.
  5. Aufzugsanlage nach einem der vorhergehenden Ansprüche 1 bis 4, bei der das Kraftübertragungsmittel (PTM) ein Getriebe (GB) mit einem variablen Übersetzungsverhältnis umfasst.
  6. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der die Steuerachse (18) der beweglichen Riemenscheibe (17) mittels eines Motors oder eines Elektromagneten aktiviert wird.
  7. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der die Steuerachse (18) der beweglichen Riemenscheibe (17) mittels eines im Schacht (H) der Aufzugsanlage angeordneten Nockens (S1, S2, S3) aktiviert wird.
  8. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der ein Schwungrad (23) mit der oberen Riemenscheibe (2) oder mit der unteren Riemenscheibe (3) zur Speicherung von Energie zusammenwirkt.
  9. Aufzugsanlage nach einem der vorhergehenden Ansprüche, die einen Schacht (H) enthält, wobei sich das bewegliche Element (8) und ein zweites gleiches bewegliches Element (8) in dem gleichen Schacht (H) bewegen.
  10. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der ein zusätzliches bewegliches Element (28) mittels eines über eine zusätzliche obere Riemenscheibe (30) laufenden getrennten Seils (29) am beweglichen Element (8) befestigt ist.
  11. Aufzugsanlage nach einem der vorhergehenden Ansprüche, bei der das bewegliche Element (8) oder das zusätzliche bewegliche Element (28) eine Aufzugskabine oder ein Gegengewicht ist.
EP20020013883 2001-06-28 2002-06-24 Aufzugsantrieb Expired - Lifetime EP1270488B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20020013883 EP1270488B1 (de) 2001-06-28 2002-06-24 Aufzugsantrieb
ES02013883T ES2305153T3 (es) 2001-06-28 2002-06-24 Medio impulsor para ascensores.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01810627 2001-06-28
EP01810627 2001-06-28
EP20020013883 EP1270488B1 (de) 2001-06-28 2002-06-24 Aufzugsantrieb

Publications (3)

Publication Number Publication Date
EP1270488A2 EP1270488A2 (de) 2003-01-02
EP1270488A3 EP1270488A3 (de) 2003-01-22
EP1270488B1 true EP1270488B1 (de) 2008-04-02

Family

ID=26077394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020013883 Expired - Lifetime EP1270488B1 (de) 2001-06-28 2002-06-24 Aufzugsantrieb

Country Status (2)

Country Link
EP (1) EP1270488B1 (de)
ES (1) ES2305153T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031723A1 (de) * 2009-07-04 2011-01-05 TÜV Nord Systems GmbH & Co. KG Förderanlage und Verfahren zum Betreiben einer Förderanlage
CN112299201A (zh) * 2019-07-31 2021-02-02 爱默生电梯(上海)有限公司 一种充电式四驱电梯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012114163A1 (en) * 2011-02-24 2012-08-30 Giorgio Jezek Device for saving energy during vertical and horizontal motions wherein the resisting torque can be split into two torques opposing each other
WO2010134106A2 (en) * 2010-02-26 2010-11-25 Giorgio Jezek Device for saving energy during vertical and horizontal motions wherein the resisting torque can be split into two torques opposing each other

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE62679C (de) * C. H. W. REICHEL in Loschwitz 254 Antriebvorrichtung für Hebezeuge mit endlosem Seil
GB633213A (en) * 1947-12-01 1949-12-12 Hammond & Champness Ltd Improvements in or relating to hoisting arrangements for lifts and the like
CH423148A (de) * 1964-01-17 1966-10-31 Schwermasch Kirow Veb K Antriebssystem für Aufzüge mit Gegengewicht
US5699879A (en) * 1996-05-06 1997-12-23 Sakita; Masami Elevator system
EP0902399B1 (de) * 1997-09-02 2003-10-15 Scheidt & Bachmann Gmbh Speichervorrichtung für kartenförmige Datenträger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031723A1 (de) * 2009-07-04 2011-01-05 TÜV Nord Systems GmbH & Co. KG Förderanlage und Verfahren zum Betreiben einer Förderanlage
CN112299201A (zh) * 2019-07-31 2021-02-02 爱默生电梯(上海)有限公司 一种充电式四驱电梯

Also Published As

Publication number Publication date
ES2305153T3 (es) 2008-11-01
EP1270488A3 (de) 2003-01-22
EP1270488A2 (de) 2003-01-02

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