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EP1446351A1 - Elevator system - Google Patents

Elevator system

Info

Publication number
EP1446351A1
EP1446351A1 EP02776634A EP02776634A EP1446351A1 EP 1446351 A1 EP1446351 A1 EP 1446351A1 EP 02776634 A EP02776634 A EP 02776634A EP 02776634 A EP02776634 A EP 02776634A EP 1446351 A1 EP1446351 A1 EP 1446351A1
Authority
EP
European Patent Office
Prior art keywords
car
counterweight
traction sheave
elevator
elevator 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.)
Granted
Application number
EP02776634A
Other languages
German (de)
French (fr)
Other versions
EP1446351B1 (en
Inventor
Ernst Ach
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
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Application filed by Inventio AG filed Critical Inventio AG
Priority to EP02776634A priority Critical patent/EP1446351B1/en
Priority to DK02776634T priority patent/DK1446351T3/en
Publication of EP1446351A1 publication Critical patent/EP1446351A1/en
Application granted granted Critical
Publication of EP1446351B1 publication Critical patent/EP1446351B1/en
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
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • 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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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
    • B66B11/0065—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 invention relates to an elevator system as defined in the claims.
  • Elevator systems of the type according to the invention usually have an elevator car and a counterweight, which can be moved in an elevator shaft or along free-standing guide devices.
  • the elevator system has at least one drive, each with at least one traction sheave, which carry the elevator car and the counterweight via carrying and driving means and transmit the required driving forces to the latter.
  • suspension or drive means are referred to below as suspension means.
  • an elevator system with a flat belt-like suspension element is known from PCT patent application WO 99/43593.
  • the elevator system contains a drive machine which is arranged in the shaft space above the elevator car and acts via at least one traction sheave on at least one flat suspension element train with which an elevator car and a counterweight arranged on its side move up and down can be moved.
  • the flat belt-like suspension element extends from one side of the traction sheave horizontally to a first deflection roller, it rotates by 90 °, then extends down along the counterweight-side car wall, wraps around two car carrier rollers attached on each side below the elevator car by 90 ° and runs upwards along a car wall facing away from the counterweight to a first, im upper area of the elevator shaft existing suspension point.
  • the suspension element runs horizontally to a second deflection roller, rotates it by 90 °, then extends down to the cabin-side side of the periphery of a counterweight support roller, wraps it around 180 ° and extends vertically to a second suspension element fixed point in the shaft head area.
  • Such an elevator system has the advantage, thanks to the use of a flat belt-like suspension element, that traction sheaves as well as deflection and idler rollers can be used with much smaller diameters than would be permitted using conventional wire ropes. As a result of the smaller traction sheave diameter, this is reduced
  • the present invention has for its object to provide an elevator system with flat belt-like suspension means, which does not have the disadvantages mentioned.
  • the proposed solution essentially consists in replacing the flat belt-like suspension element with flat traction surfaces by a V-ribbed belt.
  • a V-ribbed belt has several ribs running parallel in the longitudinal direction of the belt in the area of its traction surface and grooves whose cross sections show wedge-shaped side flanks.
  • the interlocking of the ribs and grooves of the V-ribbed belt in those of the pulleys and rollers ensures excellent lateral guidance of the suspension element, which is distributed over several rib and groove flanks.
  • the elevator system according to the invention naturally also includes designs with at least two suspension element strands arranged in parallel to one another (V-ribbed belts).
  • the cross sections of the ribs and grooves of the V-ribbed belt are essentially triangular or trapezoidal.
  • V-ribbed belts with triangular or trapezoidal ribs and grooves are particularly easy and inexpensive to manufacture.
  • the triangular or trapezoidal ribs and grooves have an angle (b) between their lateral flanks that is between 80 ° and 100 °.
  • V-ribbed belts are present in which the angle (b) between the lateral flanks of the ribs and grooves is 90 °.
  • V-ribbed belts that allow particularly small bending radii, d. i.e., which are suitable for use in combination with traction sheaves, deflection rollers and idlers with particularly small diameters, have transverse grooves on one side provided with ribs and grooves. The bending stresses occurring in the V-ribbed belt when rotating pulleys and rollers are thus significantly reduced.
  • the drive machine with the traction sheave shaft and the traction sheave is mounted on a carrier are carried by one of the car guide rails and the two counterweight guide rails. This ensures that the vertical loads acting on the traction sheave and the drive machine are largely conducted via the guide rails into the foundations of the elevator shaft and do not load the walls of the shaft.
  • a brake unit is additionally mounted on the carrier supporting the drive machine and acts on the drive pulley via the drive pulley shaft.
  • suspension means extends downwards from a suspension means fixed point underneath the traction sheave, loops around a support roller of the counterweight and extends from this to the side of the periphery of the traction sheave facing away from the elevator car , wraps around the traction sheave, runs down along a cabin wall on the counterweight side and then forms a common loop under the cabin.
  • a distance between the elevator car and the shaft wall is required on the counterweight side, which is only slightly larger than the diameter of the traction sheave or the support roller.
  • the elevator car in the area of the V-ribbed belt passing under the elevator car has at least one guide roller for the V-ribbed belt, which is provided with ribs and grooves.
  • the advantageous suspension means guide described above can thus also be achieved for a V-ribbed belt which has ribs and grooves on only one of its running surfaces, which are directed radially outward in the region of the car idler rollers attached below the elevator car and are not guided by the latter.
  • FIG. 1 shows a section parallel to an elevator car front through an elevator system according to the invention.
  • Fig. 3 shows a V-ribbed belt according to the invention with triangular ribs and grooves.
  • Fig. 4 shows a V-ribbed belt according to the invention with trapezoidal ribs and grooves.
  • Reference number 1 denotes an elevator shaft in which a drive machine 2 moves an elevator car 3 up and down via a suspension element in the form of a V-ribbed belt 12.
  • the elevator car 3 is guided by means of car guide shoes 4 on car guide rails 5 fixed in the elevator shaft 1.
  • a counterweight 8 is arranged on the left-hand side of the elevator car 3 and is attached by means of counterweight guide shoes 9 guided two counterweight guide rails 10 and suspended by means of a counterweight support roller 11 on the same V-ribbed belt 12 as the elevator car 3.
  • the drive machine 2 is mounted above the shaft space claimed by the elevator car 3 and has an output shaft 14 acting on a traction sheave shaft 15, the traction sheave shaft being aligned parallel to the counterweight-side wall of the elevator car 3 and carrying at least one traction sheave 16.
  • the drive machine 2 and the traction sheave shaft 15 with at least one
  • Traction sheave 16 are fastened to a machine support 13 which is supported on the counterweight-side cabin guide rail 5 and on the two counterweight guide rails 10 and is firmly connected to them.
  • a controllable brake unit 17 shown here as invisible, which is arranged in the region of the end of the drive pulley shaft 15 facing away from the drive machine 2 and can brake the drive pulley shaft 15 and thus the drive pulley 16 ,
  • the brake unit 17 also serves as a bearing for the mentioned end of the traction sheave shaft 15.
  • the plane of the traction sheave 16 is arranged at right angles to the cabin wall on the counterweight side and lies approximately in the middle of the cabin depth.
  • the vertical projection of the traction sheave 16 lies outside the vertical projection of the
  • Elevator car 3 while part of the vertical projection of the drive machine 2 overlaps that of the elevator car 3.
  • the V-ribbed belt 12, which serves as a suspension element, is fastened at one of its ends below the drive pulley 16 in the region of its vertical projection on the machine carrier 13.
  • first suspension point 18 From this first suspension point 18, it extends down to the side of the periphery of the counterweight support roller 11 facing the elevator car 3, wraps around the counterweight support roller, extends from this to the side of the periphery of the drive pulley facing away from the elevator car, wraps around the drive pulley and runs down along the counterweight-side car wall, loops around a car support roller 7 attached below the car by 90 ° on both sides of the elevator car and runs upwards along a car wall facing away from the counterweight to a second suspension element fixed point 19.
  • the suspension device arrangement described in each case brings about opposite vertical movements of the elevator car 3 and counterweight 8, their speed corresponding to half the peripheral speed of the traction sheave 16.
  • the special arrangement of the first suspension element fixed point 18 enables the smallest possible distance between the counterweight-side cabin wall and the shaft wall if no rotation of the suspension element is permitted, i. i.e. if the
  • Levels of the traction sheave 16 and the counterweight support roller 11 are to be aligned with the levels of the cabin support rollers 7, which is practically mandatory for flat belt-type suspension means.
  • the present description always refers to an elevator system with a suspension device. telstrang, with a traction sheave and each with a counterweight or cabin support roller.
  • the elevator system according to the invention also includes designs with at least two suspension element strands arranged in parallel to one another (V-ribbed belts), in which case the pulleys and rollers, which are also multiply present in these designs, can be present as multiple elements present in parallel or as combined multiple elements. Such a multiple arrangement of V-ribbed belts is practically imperative to demonstrate sufficient system security.
  • FIG. 2 shows a special embodiment of the lower wrap of the elevator car 3 with the V-ribbed belt 12.
  • a guide roller 20 is fastened between them on the car floor 6, which is also provided with ribs and grooves.
  • Such a guide roller takes over the lateral guidance of a V-ribbed belt 12 which has ribs and grooves only on one running surface.
  • Such a V-ribbed belt 12 is not laterally guided by the cabin support rollers 7 with the aid of the ribs and grooves since these are directed radially outwards when these cabin support rollers 7 rotate , However, such guidance is not necessary in every case, for example, not if the cabin support rollers 7 are equipped with flanged wheels or are sufficiently long.
  • FIG. 3 and 4 show possible embodiments 12.1 and 12.2 of a V-ribbed belt 12 that can be used for the elevator system according to the invention with ribs 23 and grooves 24 oriented in the longitudinal direction of the belt.
  • a V-ribbed belt 12 that can be used for the elevator system according to the invention with ribs 23 and grooves 24 oriented in the longitudinal direction of the belt.
  • at least that layer of the V-ribbed belt 12 which contains the ribs and grooves is made of polyurethane.
  • the V-ribbed belt 12 contains tension members 25 oriented in the longitudinal direction thereof, which consist of metallic strands (e.g. steel strands) or non-metallic strands (e.g. of synthetic fibers / man-made fibers).
  • Tension members can also be in the form of metallic fabrics or flat fabrics made of synthetic fibers. Tension members give the V-ribbed belts 12 the required tensile strength and / or longitudinal rigidity.
  • the ribs and grooves have a triangular cross section and in the one according to FIG. 4 a trapezoidal cross section.
  • the angle b present between the flanks of a rib or a groove influences the operating properties of a V-ribbed belt, in particular its smooth running and its traction ability. Tests have shown that, within certain limits, the larger the angle b, the better the smooth running and the poorer the traction ability. Advantageous properties regarding smooth running and traction ability are achieved at the same time if the
  • Angle b is between 80 ° and 100 °.
  • An optimal compromise between the opposing requirements is achieved with V-ribbed belts, in which the angle b is approximately 90 °.
  • the V-ribbed belt 12 In addition to the wedge-shaped ribs 23 and grooves 24, it also has transverse grooves 26. These transverse grooves 26 improve the bending flexibility of the V-ribbed belt 12, so that it can interact with traction sheaves, support and deflection rollers which have an extremely small diameter.

Landscapes

  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Vehicle Body Suspensions (AREA)
  • Paper (AREA)
  • Lubricants (AREA)
  • Types And Forms Of Lifts (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Pinball Game Machines (AREA)
  • Coating Apparatus (AREA)

Abstract

The invention relates to an elevator system which is devoid of a machinery room, comprising a drive motor (2) with a drive disk (16), an elevator car (3) and a counterweight (8) arranged to the side thereof. Flat-belt type support means (12) embodied in the form of a V-ribbed belt are driven by the drive motor (2) with the aid of the drive disk (16). Said support means support the elevator car (3) in the form of an underloop and support the counterweight on a support roller (11), moving them along vertical guides (5,10). The V-ribbed belt (12) is provided with several ribs and grooves at least on the bearing surface opposite the drive disk (16), extending in a parallel manner in the longitudinal direction thereof, in order to improve the traction capacity of the support means.

Description

AufzugsSystemelevator system
Gegenstand der Erfindung ist ein Aufzugssystem, wie in den Patentansprüchen definiert.The invention relates to an elevator system as defined in the claims.
Aufzugssysteme der erfindungsgemässen Art weisen üblicherweise eine Aufzugskabine und ein Gegengewicht auf, die in einem Aufzugsschacht oder entlang freistehender Führungseinrichtungen bewegbar sind. Zum Erzeugen der Bewegung weist das Aufzugssystem mindestens einen Antrieb mit mindestens je einer Treibscheibe auf, die über Trag- und Antriebsmittel die Aufzugkabine und das Gegengewicht tragen und die erforderlichen Antriebskräfte auf diese übertragen.Elevator systems of the type according to the invention usually have an elevator car and a counterweight, which can be moved in an elevator shaft or along free-standing guide devices. To generate the movement, the elevator system has at least one drive, each with at least one traction sheave, which carry the elevator car and the counterweight via carrying and driving means and transmit the required driving forces to the latter.
Die Trag- oder Antriebsmittel werden im Folgenden als Tragmittel bezeichnet.The suspension or drive means are referred to below as suspension means.
Bei konventionellen AufzugsSystemen werden üblicherweise Stahlseile mit rundem Querschnitt als Tragmittel eingesetzt. Für neuere Aufzugssysteme kommen jedoch vermehrt flache, riemenartige Tragmittel zur Anwendung.In conventional elevator systems, steel cables with a round cross section are usually used as a suspension element. However, flat, belt-like suspension elements are increasingly being used for newer elevator systems.
Ein Aufzugssystem mit einem flachriemenartigen Tragmittel ist aus der PCT-Patentanmeldung WO 99/43593 bekannt. In der dort mit Fig. 6 dargestellten Ausführungsform enthält das Aufzugssystem eine Antriebsmaschine, die im Schachtraum oberhalb der Aufzugskabine angeordnet ist und über mindestens eine Treibscheibe auf mindestens einen flachen Tragmittelstrang wirkt, mit dem eine Aufzugskabine und ein auf deren Seite angeordnetes Gegengewicht auf- und abwärts bewegt werden können. Das flachriemenartige Tragmittel verläuft dabei von der einen Seite der Treibscheibe aus horizontal zu einer ersten Umlenkrolle, umläuft diese um 90°, erstreckt sich dann entlang der gegengewichtsseitigen Kabinenwand abwärts, umschlingt zwei auf je einer Seite unterhalb der Aufzugskabine angebrachte Kabinentragrollen um je 90° und verläuft entlang einer dem Gegengewicht abgewandten Kabinenwand aufwärts zu einem ersten, im oberen Bereich des Aufzugsschachts vorhandenen Tragmittelfixpunkt. Von der anderen Seite der Treibscheibe aus verläuft das Tragmittel horizontal zu einer zweiten Umlenkrolle, umläuft diese um 90°, erstreckt sich dann abwärts zur kabinenseitigen Seite der Peripherie einer Gegengewichtstragrolle, umschlingt diese um 180° und verläuft vertikal zu einem zweiten Tragmittelfixpunkt im Schachtkopfbereich.An elevator system with a flat belt-like suspension element is known from PCT patent application WO 99/43593. In the embodiment shown there with FIG. 6, the elevator system contains a drive machine which is arranged in the shaft space above the elevator car and acts via at least one traction sheave on at least one flat suspension element train with which an elevator car and a counterweight arranged on its side move up and down can be moved. The flat belt-like suspension element extends from one side of the traction sheave horizontally to a first deflection roller, it rotates by 90 °, then extends down along the counterweight-side car wall, wraps around two car carrier rollers attached on each side below the elevator car by 90 ° and runs upwards along a car wall facing away from the counterweight to a first, im upper area of the elevator shaft existing suspension point. From the other side of the traction sheave, the suspension element runs horizontally to a second deflection roller, rotates it by 90 °, then extends down to the cabin-side side of the periphery of a counterweight support roller, wraps it around 180 ° and extends vertically to a second suspension element fixed point in the shaft head area.
Ein solches Aufzugssystem hat dank der Anwendung eines flachrie enartigen Tragmittels den Vorteil, dass Treibscheiben sowie Umlenk- und Tragrollen mit wesentlich geringeren Durchmessern verwendet werden können, als dies bei Anwendung herkömmlicher Drahtseile zulässig wäre. Infolge des geringe- ren Treibscheibendurchmessers reduziert sich das an derSuch an elevator system has the advantage, thanks to the use of a flat belt-like suspension element, that traction sheaves as well as deflection and idler rollers can be used with much smaller diameters than would be permitted using conventional wire ropes. As a result of the smaller traction sheave diameter, this is reduced
Treibscheibe erforderliche Antriebsdrehmoment, wodurch eine Antriebsmaschine mit geringeren Abmessungen verwendet werden kann. Dank der allgemein geringeren Tragmittelscheiben- Durchmesser können einfachere und platzsparende Aufzugssy- steme realisiert werden.Traction sheave required drive torque, whereby a drive machine can be used with smaller dimensions. Thanks to the generally smaller suspension element disc diameter, simpler and space-saving elevator systems can be implemented.
Die in WO 99/43593 beschriebenen Aufzugssysteme weisen jedoch gewisse Nachteile auf.However, the elevator systems described in WO 99/43593 have certain disadvantages.
Infolge der geringen Treibscheibendurchmesser, und weil bei der Verwendung von Flachriemen als Tragmittel bekannte Massnahmen zur Verbesserung der Traktionsfähigkeit - beispielsweise Unterschneidung der Seilrillen an Treibscheiben für runde Tragmittel - nicht anwendbar sind, kann bei relativ grosse Gewichtsverhältnis zwischen voll beladener und leerer Aufzugskabine das Problem auftreten, dass die zwischen Treibscheibe und flachriemenartigemAs a result of the small traction sheave diameter and because known measures to improve traction when using flat belts as suspension elements - For example, undercutting the cable grooves on traction sheaves for round suspension elements - are not applicable, the problem can arise with a relatively large weight ratio between fully loaded and empty elevator car that the traction sheave and flat belt-like
Traktionsmittel übertragbaren Traktionskräfte nicht ausreichen.Traction force transferable traction forces are not sufficient.
Ausserde ist bekannt, dass bei der Verwendung von flachrie- menartigen Tragmitteln ohne Profilierung der "Lauffläche erhebliche Probleme mit der seitlichen Führung der Tragmittel auf der Treibscheibe, den Umlenkrollen und den Tragrollen auftreten. Erfahrungen haben gezeigt, dass das Risiko besteht, dass die Tragmittel an den üblicherweise an den Treibscheiben, den Umlenkrollen und den Tragrollen vorhandenen seitlichen Bordscheiben so stark reiben, dass die Tragmittel verletzt werden.It is also known that when using flat belt-type suspension elements without profiling the " tread, there are considerable problems with the lateral guidance of the suspension elements on the traction sheave, the deflection rollers and the support rollers. Experience has shown that there is a risk that the suspension elements may be attached rub the side flanges that are usually present on the traction sheaves, the deflection rollers and the support rollers so strongly that the suspension elements are injured.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Aufzugssystem mit flachriemenartigen Tragmitteln zu schaffen, das die genannten Nachteile nicht aufweist.The present invention has for its object to provide an elevator system with flat belt-like suspension means, which does not have the disadvantages mentioned.
Erfindungsgemäss wird die Aufgabe durch die im Patentanspruch 1 angegebenen Massnahmen gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den abhängigen Ansprüchen 2 bis 12 hervor.According to the invention the object is achieved by the measures specified in claim 1. Advantageous refinements and developments of the invention emerge from the dependent claims 2 to 12.
Die vorgeschlagene Lösung besteht im Wesentlichen darin, das flachriemenartige Tragmittel mit ebenen Traktionsflächen durch einen Keilrippenriemen zu ersetzen.The proposed solution essentially consists in replacing the flat belt-like suspension element with flat traction surfaces by a V-ribbed belt.
Ein Keilrippenriemen weist im Bereich seiner Traktionsfläche mehrere in Riemen-Längsrichtung parallel verlaufende Rippen und Rillen auf, deren Querschnitte keilförmig aufeinander zulaufende seitliche Flanken zeigen. Beim Umlaufen der Treibscheibe, an deren Peripherie ebenfalls Rippen und Rillen vorhanden sind, welche zu denjenigen des Keilrippen- riemens komplementär sind, werden die keilförmigen Rippen des Keilrippenriemens in die keilförmigen Rillen der Treibscheibe gepresst. Dabei werden infolge der Keilform die zwischen Treibscheibe und Keilrippenriemen auftretenden Normalkräfte erhöht, so dass eine Verbesserung der Trakti- onsfähigkeit zwischen Treibscheibe und Riemen resultiert.A V-ribbed belt has several ribs running parallel in the longitudinal direction of the belt in the area of its traction surface and grooves whose cross sections show wedge-shaped side flanks. When the drive pulley rotates, on the periphery of which there are also ribs and grooves which are complementary to those of the V-ribbed belt, the wedge-shaped ribs of the V-ribbed belt are pressed into the wedge-shaped grooves of the drive pulley. As a result of the wedge shape, the normal forces occurring between the traction sheave and the V-ribbed belt are increased, so that the traction ability between the traction sheave and the belt is improved.
Ausserdem gewährleistet das Ineinandergreifen der Rippen und Rillen des Keilrippenriemens in diejenigen der Scheiben und Rollen eine ausgezeichnete, auf mehrere Rippen- und Rillen- flanken verteilte, seitliche Führung des Tragmittels.In addition, the interlocking of the ribs and grooves of the V-ribbed belt in those of the pulleys and rollers ensures excellent lateral guidance of the suspension element, which is distributed over several rib and groove flanks.
Das erfindungsgemässe Aufzugssystem umfasst selbstverständlich auch Ausführungen mit mindestens zwei parallel zueinander angeordneten Tragmittelsträngen (Keilrippenriemen) .The elevator system according to the invention naturally also includes designs with at least two suspension element strands arranged in parallel to one another (V-ribbed belts).
Ge äss einer bevorzugten Ausgestaltung der Erfindung sind die Querschnitte der Rippen und Rillen des Keilrippenriemens im Wesentlichen dreieckförmig oder trapezförmig. Keilrippenriemen mit dreieckförmigen oder trapezförmigen Rippen und Rillen sind besonders einfach und kostengünstig herstellbar.According to a preferred embodiment of the invention, the cross sections of the ribs and grooves of the V-ribbed belt are essentially triangular or trapezoidal. V-ribbed belts with triangular or trapezoidal ribs and grooves are particularly easy and inexpensive to manufacture.
Ein vorteilhafter Kompromiss zwischen den Anforderungen an Laufruhe und an Traktionsfähigkeit wird erreicht, wenn die dreieckförmigen oder trapezförmigen Rippen und Rillen zwischen ihren seitlichen Flanken einen Winkel (b) aufweisen, der zwischen 80° und 100° liegt. In einer besonders geeigneten Ausführungsform des erfin- dungsgemässen Aufzugssystems sind Keilrippenriemen vorhan- • den, bei denen der Winkel (b) zwischen den seitlichen Flanken der Rippen und Rillen 90° beträgt.An advantageous compromise between the requirements for smooth running and traction is achieved if the triangular or trapezoidal ribs and grooves have an angle (b) between their lateral flanks that is between 80 ° and 100 °. In a particularly suitable embodiment of the elevator system according to the invention, V-ribbed belts are present in which the angle (b) between the lateral flanks of the ribs and grooves is 90 °.
Keilrippenriemen, die besonders geringe Biegeradien zulassen, d. h., die für die Anwendung in Kombination mit Treibscheiben, Umlenkrollen und Tragrollen mit besonders kleinen Durchmessern geeignet sind, weisen auf einer mit Rippen und Rillen versehenen Seite Querrillen auf. Die beim Umlaufen von Scheiben und Rollen auftretenden Biegespannungen im Keilrippenriemen werden damit wesentlich reduziert.V-ribbed belts that allow particularly small bending radii, d. i.e., which are suitable for use in combination with traction sheaves, deflection rollers and idlers with particularly small diameters, have transverse grooves on one side provided with ribs and grooves. The bending stresses occurring in the V-ribbed belt when rotating pulleys and rollers are thus significantly reduced.
Zur Gewährleistung ausreichender Betriebssicherheit des Aufzugssystems sind mehrere zueinander parallel angeordnete, separate Keilrippenriemen als Tragmittel vorgesehen.To ensure sufficient operational safety of the elevator system, several separate V-ribbed belts arranged parallel to one another are provided as suspension elements.
Besonders grosse Vorteile in Bezug auf das an der Treibscheibe erforderliche Drehmoment und damit die Abmessungen der Antriebsmaschine sowie in Bezug auf die Gesamtabmessun- gen einer Aufzugsanlage werden mit einem erfindungsgemässen Aufzugssystem erreicht, wenn mindestens die Treibscheiben, vorzugsweise jedoch auch die Umlenk- und Tragrollen, einen Aussendurchmesser von 70 mm bis 100 mm aufweisen. Bisherige Versuche führten zur Erkenntnis, dass mit Scheiben- undParticularly great advantages in terms of the torque required on the traction sheave and thus the dimensions of the drive machine and in relation to the overall dimensions of an elevator installation are achieved with an elevator system according to the invention if at least the traction sheaves, but preferably also the deflection and idler rollers, have one Have outside diameters from 70 mm to 100 mm. Previous attempts have led to the realization that with disc and
Rollendurchmessern von 85 mm den diversen Anforderungen und Belastungsgrenzen in optimaler Weise entsprochen werden kann.Roll diameters of 85 mm, the various requirements and load limits can be optimally met.
Eine weitere vorteilhafte Weiterbildung der Erfindung besteht darin, dass die Antriebsmaschine mit der Treibscheibenwelle und der Treibscheibe auf einem Träger montiert sind, der von einer der Kabinenführungsschienen und den beiden Gegengewichtsführungsschienen getragen wird. Damit wird erreicht, dass die auf die Treibscheibe und die Antriebsmaschine wirkenden Vertikalbelastungen grösstenteils über die Führungsschienen in die Fundamente des Aufzugs- schachts geleitet werden, und nicht die Wände des Schachts belasten.Another advantageous development of the invention is that the drive machine with the traction sheave shaft and the traction sheave is mounted on a carrier are carried by one of the car guide rails and the two counterweight guide rails. This ensures that the vertical loads acting on the traction sheave and the drive machine are largely conducted via the guide rails into the foundations of the elevator shaft and do not load the walls of the shaft.
Zusätzliche Betriebssicherheit wird ge äss einer der Ausführungsformen des erfindungsgemässen Aufzugssystems dadurch erreicht, dass auf dem die Antriebsmaschine stützenden Träger zusätzlich eine Bremseinheit montiert ist, die über die Treibscheibenwelle auf die Treibscheibe wirkt. Der Vorteil dieser Anordnung liegt darin, dass im Falle eines Maschinenbruchs die Bremswirkung auf die Treibscheibe nicht ausfällt.Additional operational safety is achieved according to one of the embodiments of the elevator system according to the invention in that a brake unit is additionally mounted on the carrier supporting the drive machine and acts on the drive pulley via the drive pulley shaft. The advantage of this arrangement is that in the event of a machine break, the braking effect on the traction sheave does not fail.
Ideale Einbauverhältnisse für die flachriemenartigen Tragmittel werden mit einer Ausführungsform der Erfindung erreicht, bei der die Antriebsmaschine mit der Treibscheibe oberhalb des durch die Aufzugskabine beanspruchten Raums angebracht ist, wobei die Ebene der Treibscheibe vertikal, rechtwinklig zu einer gegengewichtsseitigen Kabinenwand und etwa in der Mitte der Kabinentiefe angeordnet ist, und wobei die Vertikalprojektion der Treibscheibe auf der Gegengewichtsseite der Aufzugskabine ausserhalb von deren Vertikalprojektion liegt, ein Teil der Vertikalprojektion der Antriebsmaschine jedoch diejenige der Aufzugskabine überlagert. Eine solche Tragmittelanordnung erlaubt die Verwendung von Keilrippenriemen ohne Verdrehung von Tragmittelsträngen, die erforderlich ist, wenn aus Gründen der Platzeinsparung die Scheiben- und Rollenebenen in unterschiedlichen Richtun- gen angeordnet sind.Ideal installation conditions for the flat belt-type suspension means are achieved with an embodiment of the invention in which the drive machine with the traction sheave is mounted above the space occupied by the elevator car, the plane of the traction sheave being vertical, at right angles to a counterweight-side car wall and approximately in the middle of the car depth is arranged, and wherein the vertical projection of the traction sheave on the counterweight side of the elevator car lies outside of its vertical projection, but part of the vertical projection of the drive machine overlaps that of the elevator car. Such a suspension element arrangement permits the use of V-ribbed belts without twisting suspension element strands, which is necessary if, for reasons of space saving, the pulley and roller levels are in different directions. are arranged.
Eine erhebliche Einsparung von seitlich der Aufzugskabine erforderlichem Schachtraum wird dadurch ermöglicht, dass das Tragmittel sich von einem unterhalb der Treibscheibe vorhandenen Tragmittelfixpunkt aus abwärts erstreckt, eine Tragrolle des Gegengewichts umschlingt, sich von dieser aus zu der von der Aufzugskabine abgewandten Seite der Peripherie der Treibscheibe erstreckt, die Treibscheibe umschlingt, entlang einer gegengewichtsseitigen Kabinenwand abwärts verläuft und anschliessend eine übliche Kabinenunterschlin- gung bildet. Bei dieser Tragmittelanordnung ist auf der Gegengewichtsseite ein Abstand zwischen der Aufzugskabine und der Schachtwand erforderlich, der nur etwas grösser als der Durchmesser der Treibscheibe oder der Tragrolle ist.A considerable saving of the shaft space required to the side of the elevator car is made possible in that the suspension means extends downwards from a suspension means fixed point underneath the traction sheave, loops around a support roller of the counterweight and extends from this to the side of the periphery of the traction sheave facing away from the elevator car , wraps around the traction sheave, runs down along a cabin wall on the counterweight side and then forms a common loop under the cabin. With this suspension arrangement, a distance between the elevator car and the shaft wall is required on the counterweight side, which is only slightly larger than the diameter of the traction sheave or the support roller.
Bei Tragmittelanordnungen gemäss Fig. 5 und 6 des als Stand der Technik genannten Dokuments ist mindestens ein Abstand von zweifachem Scheibendurchmesser erforderlich.5 and 6 of the document referred to as prior art, at least a distance of twice the washer diameter is required.
Gemäss einer weiteren Ausführungsform des erfindungsgemässen Aufzugssystems weist die Aufzugskabine im Bereich des unter der Aufzugskabine durchlaufenden Keilrippenriemens mindestens eine Führungsrolle für den Keilrippenriemen auf, die mit Rippen und Rillen versehen ist. Damit kann die obenste- hend beschriebene vorteilhafte Tragmittelführung auch für einen Keilrippenriemen erreicht werden, der nur auf einer seiner Laufflächen Rippen und Rillen aufweist, die im Bereich der unterhalb der Aufzugskabine angebrachten Kabinentragrollen radial nach aussen gerichtet und durch letztere nicht geführt sind. Ein Ausführungsbeispiel der Erfindung ist anhand der beigefügten Zeichnungen erläutert.According to a further embodiment of the elevator system according to the invention, the elevator car in the area of the V-ribbed belt passing under the elevator car has at least one guide roller for the V-ribbed belt, which is provided with ribs and grooves. The advantageous suspension means guide described above can thus also be achieved for a V-ribbed belt which has ribs and grooves on only one of its running surfaces, which are directed radially outward in the region of the car idler rollers attached below the elevator car and are not guided by the latter. An embodiment of the invention is explained with reference to the accompanying drawings.
Es zeigen:Show it:
Fig. 1 einen zu einer Aufzugskabinenfront parallelen Schnitt durch ein erfindungsgemässes Aufzugssystem.1 shows a section parallel to an elevator car front through an elevator system according to the invention.
Fig. 2 eine besondere Ausführungsform der unteren Umschlingung der Aufzugskabine mit dem Tragmittel,2 shows a special embodiment of the lower wrap of the elevator car with the suspension means,
Fig. 3 einen erfindungsgemässen Keilrippenriemen mit dreieckförmigen Rippen und Rillen.Fig. 3 shows a V-ribbed belt according to the invention with triangular ribs and grooves.
Fig. 4 einen erfindungsgemässen Keilrippenriemen mit trapezförmigen Rippen und Rillen.Fig. 4 shows a V-ribbed belt according to the invention with trapezoidal ribs and grooves.
Fig. 1 zeigt einen zu einer Aufzugskabinenfront parallelen Schnitt durch ein erfindungsgemässes Aufzugssystem. Mit dem Bezugszeichen 1 ist ein AufzugsSchacht gekennzeichnet, in dem eine Antriebsmaschine 2 eine Aufzugskabine 3 über ein Tragmittel in Form eines Keilrippenriemens 12 aufwärts und abwärts bewegt. Die Aufzugskabine 3 ist mittels Kabinenführungsschuhen 4 an im Aufzugsschacht 1 fixierten Kabinenführungsschienen 5 geführt. Unterhalb des Kabinenbodens 6 sind auf beiden Seiten Kabinentragrollen 7 angebracht, über welche die Trag- und Beschleunigungskräfte vom Keilrippen- riemen 12 auf die Aufzugskabine 3 übertragen werden. Auf der linken Seite der Aufzugskabine 3 ist ein Gegengewicht 8 angeordnet, das mittels Gegengewichtsführungsschuhen 9 an zwei Gegengewichtsführungsschienen 10 geführt und mittels einer Gegengewichtstragrolle 11 am selben Keilrippenriemen 12 wie die Aufzugskabine 3 aufgehängt ist.1 shows a section parallel to an elevator car front through an elevator system according to the invention. Reference number 1 denotes an elevator shaft in which a drive machine 2 moves an elevator car 3 up and down via a suspension element in the form of a V-ribbed belt 12. The elevator car 3 is guided by means of car guide shoes 4 on car guide rails 5 fixed in the elevator shaft 1. Beneath the car floor 6 there are car support rollers 7 on both sides, via which the load and acceleration forces are transmitted from the V-ribbed belt 12 to the elevator car 3. A counterweight 8 is arranged on the left-hand side of the elevator car 3 and is attached by means of counterweight guide shoes 9 guided two counterweight guide rails 10 and suspended by means of a counterweight support roller 11 on the same V-ribbed belt 12 as the elevator car 3.
Die Antriebsmaschine 2 ist oberhalb des durch die Aufzugska- bine 3 beanspruchten Schachtraums angebracht und weist eine auf eine Treibscheibenwelle 15 wirkende Abtriebswelle 14 auf, wobei die Treibscheibenwelle parallel zur gegenge- wichtsseitigen Wand der Aufzugskabine 3 ausgerichtet ist und mindestens eine Treibscheibe 16 trägt. Die Antriebsmaschine 2 und die Treibscheibenwelle 15 mit mindestens einerThe drive machine 2 is mounted above the shaft space claimed by the elevator car 3 and has an output shaft 14 acting on a traction sheave shaft 15, the traction sheave shaft being aligned parallel to the counterweight-side wall of the elevator car 3 and carrying at least one traction sheave 16. The drive machine 2 and the traction sheave shaft 15 with at least one
Treibscheibe 16 sind auf einem Maschinenträger 13 befestigt, der sich auf der gegengewichtsseitigen Kabinenführungsschiene 5 sowie auf den zwei Gegengewichtsführungsschienen 10 abstützt und fest mit diesen verbunden ist.Traction sheave 16 are fastened to a machine support 13 which is supported on the counterweight-side cabin guide rail 5 and on the two counterweight guide rails 10 and is firmly connected to them.
Auf dem die Antriebsmaschine 2 stützenden Maschinenträger 13 ist zusätzlich eine - hier als unsichtbar dargestellte - steuerbare Bremseinheit 17 montiert, die im Bereich des von der Antriebsmaschine 2 abgewandten Endes der Treibscheiben- welle 15 angeordnet ist und die Treibscheibenwelle 15 und somit die Treibscheibe 16 bremsen kann. Die Bremseinheit 17 dient gleichzeitig als Lagerung für das genannte Ende der Treibscheibenwelle 15. Der Vorteil dieser Anordnung liegt darin, dass im Falle eines Maschinenbruchs die Möglichkeit der Bremsung der Treibscheibe erhalten bleibt.On the machine support 13 supporting the drive machine 2 there is additionally mounted a controllable brake unit 17, shown here as invisible, which is arranged in the region of the end of the drive pulley shaft 15 facing away from the drive machine 2 and can brake the drive pulley shaft 15 and thus the drive pulley 16 , The brake unit 17 also serves as a bearing for the mentioned end of the traction sheave shaft 15. The advantage of this arrangement is that the possibility of braking the traction sheave is retained in the event of a machine breakage.
Die Ebene der Treibscheibe 16 ist rechtwinklig zur gegengewichtsseitigen Kabinenwand angeordnet und liegt etwa in der Mitte der Kabinentiefe. Die Vertikalprojektion der Treib- scheibe 16 liegt ausserhalb der Vertikalprojektion derThe plane of the traction sheave 16 is arranged at right angles to the cabin wall on the counterweight side and lies approximately in the middle of the cabin depth. The vertical projection of the traction sheave 16 lies outside the vertical projection of the
Aufzugskabine 3, während ein Teil der Vertikalprojektion der Antriebsmaschine 2 diejenige der Aufzugskabine 3 überlagert. Der als Tragmittel dienende Keilrippenriemen 12 ist an einem seiner Enden unterhalb der Treibscheibe 16 im Bereich von deren Vertikalprojektion am Maschinenträger 13 befestigt. Von diesem ersten Tragmittelfixpunkt 18 aus erstreckt er sich abwärts bis zu der der Aufzugskabine 3 zugewandten Seite der Peripherie der Gegengewichtstragrolle 11, umschlingt die Gegengewichtstragrolle, erstreckt sich von dieser aus zu der von der Aufzugskabine abgewandten Seite der Peripherie der Treibscheibe, umschlingt die Treibscheibe und verläuft entlang der gegengewichtsseitigen Kabinenwand abwärts, umschlingt auf beiden Seiten der Aufzugskabine je eine unterhalb der Kabine angebrachte Kabinentragrolle 7 um je 90° und verläuft entlang einer dem Gegengewicht abgewand- ten Kabinenwand aufwärts zu einem zweiten Tragmittelfixpunkt 19.Elevator car 3, while part of the vertical projection of the drive machine 2 overlaps that of the elevator car 3. The V-ribbed belt 12, which serves as a suspension element, is fastened at one of its ends below the drive pulley 16 in the region of its vertical projection on the machine carrier 13. From this first suspension point 18, it extends down to the side of the periphery of the counterweight support roller 11 facing the elevator car 3, wraps around the counterweight support roller, extends from this to the side of the periphery of the drive pulley facing away from the elevator car, wraps around the drive pulley and runs down along the counterweight-side car wall, loops around a car support roller 7 attached below the car by 90 ° on both sides of the elevator car and runs upwards along a car wall facing away from the counterweight to a second suspension element fixed point 19.
Die beschriebene Tragmittelanordnung bewirkt jeweils gegenläufige Vertikalbewegungen von Aufzugskabine 3 und Gegengewicht 8, wobei deren Geschwindigkeit der halben Umfangsgeschwindigkeit der Treibscheibe 16 entspricht. Die spezielle Anordnung des ersten Tragmittelfixpunkts 18 ermöglicht geringstmöglichen Abstands zwischen der gegengewichtsseitigen Kabinenwand und der Schachtwand, wenn keine Verdrehung der Tragmittel zulässig ist, d. h., wenn dieThe suspension device arrangement described in each case brings about opposite vertical movements of the elevator car 3 and counterweight 8, their speed corresponding to half the peripheral speed of the traction sheave 16. The special arrangement of the first suspension element fixed point 18 enables the smallest possible distance between the counterweight-side cabin wall and the shaft wall if no rotation of the suspension element is permitted, i. i.e. if the
Ebenen der Treibscheibe 16 und der Gegengewichtstragrolle 11 mit den Ebenen der Kabinentragrollen 7 fluchten sollen, was bei flachriemenartigen Tragmitteln praktisch zwingend der Fall ist.Levels of the traction sheave 16 and the counterweight support roller 11 are to be aligned with the levels of the cabin support rollers 7, which is practically mandatory for flat belt-type suspension means.
Die vorliegende Beschreibung bezieht sich aus Gründen der Einfachheit stets auf ein Aufzugssystem mit einem Tragmit- telstrang, mit einer Treibscheibe und mit jeweils einer Gegengewichts- oder Kabinentragrolle. Das erfindungsgemässe Aufzugssystem umfasst jedoch auch Ausführungen mit mindestens zwei parallel zueinander angeordneten Tragmittelsträn- gen (Keilrippenriemen) , wobei die bei diesen Ausführungen ebenfalls mehrfach vorhandenen Scheiben und Rollen als mehrfach parallel vorhandene Einzelelemente oder als kombinierte Mehrfachelemente vorhanden sein können. Eine solche Mehrfachanordnung von Keilrippenriemen ist zum Nachweis ausreichender Systemsicherheit praktisch zwingend erforderlich.For the sake of simplicity, the present description always refers to an elevator system with a suspension device. telstrang, with a traction sheave and each with a counterweight or cabin support roller. However, the elevator system according to the invention also includes designs with at least two suspension element strands arranged in parallel to one another (V-ribbed belts), in which case the pulleys and rollers, which are also multiply present in these designs, can be present as multiple elements present in parallel or as combined multiple elements. Such a multiple arrangement of V-ribbed belts is practically imperative to demonstrate sufficient system security.
Fig. 2 zeigt eine besondere Ausführungsform der unteren Umschlingung der Aufzugskabine 3 mit dem Keilrippenriemen 12. Zusätzlich zu den vorstehend erwähnten Kabinentragrollen 7 ist zwischen diesen eine Führungsrolle 20 am Kabinenboden 6 befestigt, die ebenfalls mit Rippen und Rillen versehen ist. Eine solche Führungsrolle übernimmt die seitliche Führung eines nur auf einer Lauffläche Rippen und Rillen aufweisenden Keilrippenriemens 12. Ein solcher Keilrippenriemen 12 ist durch die Kabinentragrollen 7 nicht mit Hilfe der Rippen und Rillen seitlich geführt, da diese beim Umlaufen dieser Kabinentragrollen 7 radial nach aussen gerichtet sind. Eine solche Führung ist jedoch nicht in jedem Fall erforderlich, beispielsweise dann nicht, wenn die Kabinentragrollen 7 mit Bordscheiben ausgerüstet oder ausreichend lang sind.2 shows a special embodiment of the lower wrap of the elevator car 3 with the V-ribbed belt 12. In addition to the above-mentioned car support rollers 7, a guide roller 20 is fastened between them on the car floor 6, which is also provided with ribs and grooves. Such a guide roller takes over the lateral guidance of a V-ribbed belt 12 which has ribs and grooves only on one running surface. Such a V-ribbed belt 12 is not laterally guided by the cabin support rollers 7 with the aid of the ribs and grooves since these are directed radially outwards when these cabin support rollers 7 rotate , However, such guidance is not necessary in every case, for example, not if the cabin support rollers 7 are equipped with flanged wheels or are sufficiently long.
Fig. 3 und 4 zeigen mögliche Ausführungsformen 12.1 und 12.2 eines für das erfindungsgemässe Aufzugssystem verwendbaren Keilrippenriemens 12 mit in Längsrichtung des Riemens orientierten Rippen 23 und Rillen 24. Vorzugsweise ist mindestens diejenige Schicht des Keilrippenriemens 12, welche die Rippen und Rillen enthält, aus Polyurethan hergestellt.3 and 4 show possible embodiments 12.1 and 12.2 of a V-ribbed belt 12 that can be used for the elevator system according to the invention with ribs 23 and grooves 24 oriented in the longitudinal direction of the belt. Preferably, at least that layer of the V-ribbed belt 12 which contains the ribs and grooves is made of polyurethane.
In den Fig. 3 und 4 ist auch zu erkennen, dass der Keilrippenriemen 12 in dessen Längsrichtung orientierte Zugträger 25 enthält, die aus metallischen Litzen (z.B. Stahllitzen) oder nicht-metallischen Litzen (z.B. aus synthetischen Fasern / Chemiefasern) bestehen. Zugträger können auch in Form von metallischen oder aus synthetischen Fasern hergestellten flächigen Geweben vorhanden sein. Zugträger verleihen den Keilrippenriemen 12 die erforderliche Zugfestigkeit und/oder Längssteifigkeit.3 and 4 it can also be seen that the V-ribbed belt 12 contains tension members 25 oriented in the longitudinal direction thereof, which consist of metallic strands (e.g. steel strands) or non-metallic strands (e.g. of synthetic fibers / man-made fibers). Tension members can also be in the form of metallic fabrics or flat fabrics made of synthetic fibers. Tension members give the V-ribbed belts 12 the required tensile strength and / or longitudinal rigidity.
Bei der Ausführungsform gemäss Fig. 3 weisen die Rippen und Rillen einen dreieckförmigen und bei derjenigen nach Fig. 4 einen trapezförmigen Querschnitt auf. Der zwischen den Flanken einer Rippe oder einer Rille vorhandene Winkel b beeinflusst die Betriebseigenschaften eines Keilrippenrie- mens, insbesondere dessen Laufruhe und dessen Traktionsfähigkeit. Versuche haben ergeben, dass innerhalb gewisser Grenzen gilt, dass je grösser der Winkel b ist, desto besser die Laufruhe und desto schlechter die Traktionsfähigkeit werden. Vorteilhafte Eigenschaften betreffend Laufruhe und Traktionsfähigkeit werden gleichzeitig erreicht, wenn derIn the embodiment according to FIG. 3, the ribs and grooves have a triangular cross section and in the one according to FIG. 4 a trapezoidal cross section. The angle b present between the flanks of a rib or a groove influences the operating properties of a V-ribbed belt, in particular its smooth running and its traction ability. Tests have shown that, within certain limits, the larger the angle b, the better the smooth running and the poorer the traction ability. Advantageous properties regarding smooth running and traction ability are achieved at the same time if the
Winkel b zwischen 80° und 100° liegt. Ein optimaler Kompro- iss zwischen den gegensätzlichen Anforderungen wird mit Keilrippenriemen erreicht, bei denen der Winkel b bei etwa 90° liegt.Angle b is between 80 ° and 100 °. An optimal compromise between the opposing requirements is achieved with V-ribbed belts, in which the angle b is approximately 90 °.
Eine weitere Möglichkeit der Ausgestaltung des Keilrippenriemens 12 ist aus Fig. 4 erkennbar. Der Keilrippenriemen 12 weist neben den keilförmigen Rippen 23 und Rillen 24 auch Querrillen 26 auf. Diese Querrillen 26 verbessern die Biege- Flexibilität des Keilrippenriemens 12, so dass dieser mit Treibscheiben, Trag- und Umlenkrollen zusammenwirken kann, die extrem geringe Durchmesser aufweisen. Another possibility for the configuration of the V-ribbed belt 12 can be seen from FIG. 4. The V-ribbed belt 12 In addition to the wedge-shaped ribs 23 and grooves 24, it also has transverse grooves 26. These transverse grooves 26 improve the bending flexibility of the V-ribbed belt 12, so that it can interact with traction sheaves, support and deflection rollers which have an extremely small diameter.

Claims

Patentansprüche claims
1. Maschinenraumloses Aufzugssystem, das eine Antriebsmaschine (2) mit einer Treibscheibe (16), eine Aufzugskabine (3) und ein seitlich davon angeordnetes Gegengewicht (8) umfasst, wobei die Antriebsmaschine (2) über die Treibscheibe (16) mindestens ein flachriemenartiges Trag- und/oder Antriebsmittel (12) antreibt, das die Aufzugskabine (3) in Form einer Unterschlingung trägt und entlang von vertikalen Führungen (5) bewegt, dadurch gekennzeichnet, dass das flachriemenartige Trag- und/oder Antriebsmittelmittel ein Keilrippenriemen (12) ist, der mindestens auf seiner der Treibscheibe (16) zugewandten Lauffläche mehrere in Riemen- Längsrichtung parallel verlaufende Rippen (23) und Rillen (24) aufweist.1. Machine room-less elevator system comprising a drive machine (2) with a drive pulley (16), an elevator car (3) and a counterweight (8) arranged laterally therefrom, the drive machine (2) via the drive pulley (16) having at least one flat belt-like support - and / or drives means (12) which carries the elevator car (3) in the form of a loop and moves along vertical guides (5), characterized in that the flat belt-like support and / or drive means is a V-ribbed belt (12), which has at least on its running surface facing the drive pulley (16) a plurality of ribs (23) and grooves (24) running parallel in the longitudinal direction of the belt.
2. Aufzugssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Querschnitte der Rippen (23) und Rillen (24) im Wesentlichen dreieckförmig oder trapezförmig sind.2. Elevator system according to claim 1, characterized in that the cross sections of the ribs (23) and grooves (24) are substantially triangular or trapezoidal.
3. Aufzugssystem nach Anspruch 2, dadurch gekennzeichnet, dass die dreieckförmigen oder trapezförmigen Rippen (23) und Rillen (24) zwischen ihren seitlichen Flanken einen Winkel (b) aufweisen, der zwischen 80° und 100° liegt.3. Elevator system according to claim 2, characterized in that the triangular or trapezoidal ribs (23) and grooves (24) have an angle (b) between their lateral flanks, which is between 80 ° and 100 °.
4. Aufzugssyste nach Anspruch 3, dadurch gekennzeichnet, dass der Winkel (b) 90° beträgt.4. Elevator system according to claim 3, characterized in that the angle (b) is 90 °.
5. Aufzugssystem nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Keilrippen- riemen (12)' auf seiner mit Rippen und Rillen versehenen Seite Querrillen (26) aufweist.5. Elevator system according to one or more of the preceding claims, characterized in that the V-ribbed belt (12) 'has transverse grooves (26) on its side provided with ribs and grooves.
6. Aufzugsystem nach einem oder mehreren der vorhergehen- den Ansprüche, dadurch gekennzeichnet, dass mehrere parallel angeordnete, separate Keilrippenriemen (12) als Tragmittel vorgesehen sind.6. Elevator system according to one or more of the preceding claims, characterized in that a plurality of separate V-ribbed belts (12) arranged in parallel are provided as suspension means.
7. Aufzugssystem nach einem oder mehreren der vorhergehen- den Ansprüche, dadurch gekennzeichnet, dass die Treibscheibe7. Elevator system according to one or more of the preceding claims, characterized in that the traction sheave
(16) einen Aussendurchmesser von 70 mm bis 100 mm aufweist.(16) has an outside diameter of 70 mm to 100 mm.
8. Aufzugssystem nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass auf beiden Seiten der Aufzugskabine (3) je eine Kabinenführungsschiene (5) und auf der Gegengewichtsseite der Aufzugskabine zwei Gegengewichtsführungsschienen (10) angebracht sind, und dass die Antriebsmaschine (2) mit einer Treibscheibenwelle (15) und der Treibscheibe (16) auf einem Maschinenträger (13) montiert sind, der von einer der Kabinenführungsschienen (5) und den beiden Gegengewichtsführungsschienen (10) getragen wird.8. Elevator system according to one or more of the preceding claims, characterized in that on each side of the elevator car (3) a car guide rail (5) and on the counterweight side of the elevator car two counterweight guide rails (10) are attached, and that the drive machine (2) with a traction sheave shaft (15) and the traction sheave (16) are mounted on a machine support (13) which is carried by one of the cabin guide rails (5) and the two counterweight guide rails (10).
9. Aufzugssystem nach einem oder mehreren der vorhergehen- den Ansprüche, dadurch gekennzeichnet, dass auf dem Maschinenträger (13) zusätzlich eine Bremseinheit (17) montiert ist, die über die Treibscheibenwelle (15) auf die Treibscheibe (16) wirkt.9. Elevator system according to one or more of the preceding claims, characterized in that a brake unit (17) is additionally mounted on the machine support (13) and acts on the traction sheave (16) via the traction sheave shaft (15).
10. Aufzugssystem nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Antriebsmaschine (2) mit der Treibscheibe oberhalb des durch die Aufzugskabine (3) beanspruchten Raums angebracht ist, wobei die Ebene der Treibscheibe (16) vertikal und rechtwinklig zu einer gegengewichtsseitigen Kabinenwand und etwa in der Mitte der Kabinentiefe angeordnet ist, und wobei die Vertikalprojektion der Treibscheibe (16) auf der Gegengewichtsseite der Aufzugskabine (3) ausserhalb von deren Vertikalprojektion liegt, ein Teil der Vertikalprojektion der Antriebsmaschine (2) jedoch diejenige der Aufzugskabine (3) überlagert.10. Elevator system according to one or more of the preceding claims, characterized in that the drive machine (2) with the traction sheave above of the space occupied by the elevator car (3), the plane of the traction sheave (16) being arranged vertically and at right angles to a counterweight-side car wall and approximately in the middle of the car depth, and wherein the vertical projection of the traction sheave (16) is on the counterweight side of the Elevator car (3) lies outside of its vertical projection, but part of the vertical projection of the drive machine (2) overlaps that of the elevator car (3).
11. Aufzugssystem nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet-, dass das als Keilrippenriemen (12) ausgebildete Tragmittel sich von einem unterhalb der Treibscheibe (16) im Bereich von deren Vertikalprojektion vorhandenen Tragmittelfixpunkt (18) aus abwärts bis zu der der Aufzugskabine 3 zugewandten Seite der Peripherie der Gegengewichtstragrolle 11 erstreckt, die Gegengewichtstragrolle umschlingt, sich von dieser aus zu der von der Aufzugskabine (3) abgewandten Seite der Periphe- rie der Treibscheibe (16) erstreckt, die Treibscheibe umschlingt und entlang der gegengewichtsseitigen Kabinenwand abwärts verläuft, auf beiden Seiten der Aufzugskabine je eine unterhalb der Kabine angebrachte Kabinentragrolle (7) um je 90° umschlingt und entlang einer dem Gegengewicht (8) abgewandten Kabinenwand aufwärts zu einem zweiten Tragmittelfixpunkt (19) verläuft.11. Elevator system according to one or more of the preceding claims, characterized in that the suspension element designed as a V-ribbed belt (12) extends from a suspension element fixed point (18) present underneath the traction sheave (16) in the region of its vertical projection down to that of the elevator car 3 extends toward the periphery of the counterweight support roller 11, wraps around the counterweight support roller, extends from this to the side of the periphery of the traction sheave (16) facing away from the elevator car (3), wraps around the traction sheave and runs downwards along the counterweight-side cabin wall, on both sides of the elevator car, a car support roller (7) attached below the car loops around 90 ° and runs upwards along a car wall facing away from the counterweight (8) to a second suspension point (19).
12. Aufzugssystem nach Anspruch 11, dadurch gekennzeichnet, dass die Aufzugskabine im Bereich .des unter der Aufzugskabi- ne durchlaufenden Keilrippenriemens (12) mindestens eine Führungsrolle (20) zur Führung des Keilrippenriemens (12) aufweist, die mit Rippen und Rillen versehen ist. 12. Elevator system according to claim 11, characterized in that the elevator car in the region of the V-ribbed belt (12) passing under the elevator car has at least one guide roller (20) for guiding the V-ribbed belt (12), which is provided with ribs and grooves.
EP02776634A 2001-11-23 2002-11-22 Elevator system Expired - Lifetime EP1446351B1 (en)

Priority Applications (2)

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EP02776634A EP1446351B1 (en) 2001-11-23 2002-11-22 Elevator system
DK02776634T DK1446351T3 (en) 2001-11-23 2002-11-22 Elevator System

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EP01811132 2001-11-23
EP01811132 2001-11-23
EP02776634A EP1446351B1 (en) 2001-11-23 2002-11-22 Elevator system
PCT/CH2002/000633 WO2003043925A1 (en) 2001-11-23 2002-11-22 Elevator system

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EP1446351A1 true EP1446351A1 (en) 2004-08-18
EP1446351B1 EP1446351B1 (en) 2005-05-04

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EP07108982A Revoked EP1834919B1 (en) 2001-11-23 2002-11-20 Lift system
EP05104453A Revoked EP1580156B1 (en) 2001-11-23 2002-11-20 Elevator comprising V-belt-like transmission means, particularly comprising ribbed V-belts, as carrying and/or traction means
EP02774244A Expired - Lifetime EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP05106721A Expired - Lifetime EP1604939B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising V-belts, as supporting and/or traction means
EP05103258A Revoked EP1561720B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means
EP05006057A Expired - Lifetime EP1547960B1 (en) 2001-11-23 2002-11-20 Elevator with belt like carrier means
EP02776633A Expired - Lifetime EP1446350B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776634A Expired - Lifetime EP1446351B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776635A Expired - Lifetime EP1446352B1 (en) 2001-11-23 2002-11-22 Lift system

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Application Number Title Priority Date Filing Date
EP07108982A Revoked EP1834919B1 (en) 2001-11-23 2002-11-20 Lift system
EP05104453A Revoked EP1580156B1 (en) 2001-11-23 2002-11-20 Elevator comprising V-belt-like transmission means, particularly comprising ribbed V-belts, as carrying and/or traction means
EP02774244A Expired - Lifetime EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP05106721A Expired - Lifetime EP1604939B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising V-belts, as supporting and/or traction means
EP05103258A Revoked EP1561720B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means
EP05006057A Expired - Lifetime EP1547960B1 (en) 2001-11-23 2002-11-20 Elevator with belt like carrier means
EP02776633A Expired - Lifetime EP1446350B1 (en) 2001-11-23 2002-11-22 Elevator system

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EP02776635A Expired - Lifetime EP1446352B1 (en) 2001-11-23 2002-11-22 Lift system

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US (5) US7624846B2 (en)
EP (9) EP1834919B1 (en)
JP (5) JP2005509578A (en)
CN (5) CN1323929C (en)
AT (9) ATE382578T1 (en)
AU (6) AU2002340704B2 (en)
BR (5) BR0214385B1 (en)
CA (4) CA2465031C (en)
CY (1) CY1105599T1 (en)
DE (8) DE50215006D1 (en)
DK (6) DK1561720T3 (en)
ES (9) ES2298937T3 (en)
HK (9) HK1068593A1 (en)
MX (3) MXPA04004787A (en)
NO (4) NO330310B1 (en)
NZ (1) NZ532893A (en)
PT (4) PT1604939E (en)
WO (4) WO2003043922A1 (en)
ZA (3) ZA200403135B (en)

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