EP1748016B1 - System comprising traction means for moving an elevator car and corresponding traction means - Google Patents
System comprising traction means for moving an elevator car and corresponding traction means Download PDFInfo
- Publication number
- EP1748016B1 EP1748016B1 EP06117644A EP06117644A EP1748016B1 EP 1748016 B1 EP1748016 B1 EP 1748016B1 EP 06117644 A EP06117644 A EP 06117644A EP 06117644 A EP06117644 A EP 06117644A EP 1748016 B1 EP1748016 B1 EP 1748016B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support means
- safety section
- drive pulley
- lift installation
- safety
- 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.)
- Revoked
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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
-
- 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
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/48—Adaptations of mechanically-operated limit switches
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
- D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2007—Elevators
Definitions
- the invention relates to an elevator system, according to the preamble of claim 1 with means for driving an elevator car.
- the invention also relates to a method according to claim 10 for providing an overrun protection in an elevator installation.
- Elevator systems have suspension means to carry an elevator car and to be able to set in motion.
- the support means typically runs around a traction sheave, which is driven by a drive.
- at least one counterweight is provided and elevator car and counterweight move in opposite directions as soon as the drive sets the traction sheave in motion.
- the traction between the traction sheave and the support means is designed so that even when the elevator car is loaded, the rotation of the traction sheave is converted as far as possible into a movement of the suspension element.
- the elevator cabs are lighter than in conventional systems. Therefore, there is a risk that in case of failure of the drive control, the traction sheave is further driven and an empty, or nearly empty, elevator car is also transported towards an upper shaft end, when the counterweight is already driven onto a buffer and not for lifting the Elevator car contributes.
- a distance between the car and the shaft end must always be ensured, since this distance defines a shelter, which protects assembly personnel, for example, from getting trapped. Penetration of the elevator car into this shelter must be prevented. This problem is reinforced by the fact that the modern suspension means are provided with sheathing or surface profiles that allow high traction because of the high friction coefficients.
- JP06087574 discloses a solution where by means of switches an approach of an elevator car to the shaft end is monitored and WO0183352 discloses a suspension means to an elevator installation, which has markings, which can be recognized by a reading device and which allow a position determination of the elevator car without security risks.
- the object of the invention is therefore to provide a reliable solution for use in an elevator system, which makes it possible to avoid pulling up the empty or nearly empty elevator car (called overrun), if there is a failure of the drive control, a faulty manipulation or other error in the Elevator system is coming.
- the invention should also be used to prevent overrunning of the counterweight in an elevator shaft.
- FIGS. 1A to 1C a first embodiment of the invention is shown. It is in the in the FIGS. 1A to 1C Example shown to a conventional elevator installation 10, which comprises an elevator car 11, which is supported by a support means 13, supported and moved.
- the support means 13 is arranged so that it is attached to both free ends in or on the elevator shaft 14. These attachment points are labeled F.
- the suspension element 13 Viewed from the first attachment point F, the suspension element 13 extends downwards along the elevator shaft 14. Then it undermines the elevator car 11, which has rollers 11.2.
- the support means 13 extends upwards and wraps around a traction sheave 16, which can be driven by a motor 15, for example. Viewed from the traction sheave 16, the support means 13 again extends downwards, wraps around a counterweight roller 12. 2, on which the counterweight 12 hangs, and extends from there to the second fixed point F.
- a shaft ceiling 14.1 or a kind of bridge or support is arranged at the upper end of the shaft, which can carry parts of the drive.
- the invention is not limited to elevators with engine room, but it is also applicable to machine roomless elevators.
- buffers 11.1 are provided for the elevator car 11 and buffer 12.1 for the counterweight 12.
- the support means 13 comprises a safety portion 17 which is arranged so that the safety portion 17 interacts with the traction sheave 16 when the elevator car 11 approaches after passing over the upper position X the upper shaft end 14.1 or when the counterweight 12 after passing over an upper position W approaches the upper shaft end 14.1.
- the safety portion 17 is designed so that slippage results from the interaction between the traction sheave 16 and the support means 13. As a result, a retraction of the cabin in the uppermost region of the shaft is impossible.
- the following descriptions essentially refer to driving over the elevator car 11. By analogy, underneath, without mentioning it in any special way, is understood to mean driving over the counterweight 12 in the opposite direction as well.
- Slipping describes a condition in which the traction sheave 16 rotates without the support means 13 resting on the traction sheave 16 making a significant movement.
- a frictional force generated between the traction sheave 16 and the support means 13 or safety area 17 is insufficient to move the suspension element 13.
- This state of slipping can also be referred to as large slippage.
- slippage the behavior of a technical element - in this case the support belt 13 - which actually synchronized to another element - in this case, the traction sheave 16 - should be moved, but in which the movement deviates from this synchronous ratio, called.
- the driven element always "lags" behind the driving element. During normal operation of a lift this slip is very small.
- Fig. 1C is schematically indicated the moment when in an inventive elevator system 10, the elevator car 11 passes over the upper position X. This can occur, for example, because the drive is defective and does not stop in the usual way when the elevator car 11 has reached the top floor.
- the traction sheave 16 pulls the support means 13 and thus also the elevator car 11 further upwards.
- the support means 13 has a safety section 17 which is arranged so that this safety section 17 interacts with the traction sheave 16 when the elevator car 11 approaches the upper shaft end (eg 14.1).
- a state is shown in which the safety portion 17 of the support means 13 has already accumulated on the traction sheave 16. Since the safety portion 17 is deliberately designed so that between the traction sheave 16 and the support means 13 results in heavy slip, the drive is no longer able to carry the elevator car 11 further up.
- Fig. 2 another elevator installation 10 according to the invention is shown.
- the suspension element 13 is connected to the elevator car 11 at one end F1 and to the counterweight 12 at the other end F2. It is therefore not an elevator installation 10 with looping of the elevator car 11.
- a suspension element 13 according to the invention can be used.
- the safety portion 17 is provided, as shown, at least at one point of the support means 13 which is at a distance A from the end F1 of the support means.
- the distance A is dependent on the data of the elevator installation.
- the to Available shaft head height, the arrangement and design of the drive or the driving speed and other data ultimately determine this distance A.
- a second security section 17 can be performed at a comparable distance to the end F2 of the support means, as in Fig. 2 indicated. This reliably prevents the counterweight 12 from being passed over in the shaft head when the elevator car 11 is seated on the cabin-side buffers 11.1.
- the safety section 17 has a longitudinal extent L (parallel to a longitudinal axis Y of the suspension element 17) which corresponds at least to 3.14 (Pi) times the value of the radius R of the traction sheave 16.
- these figures only apply to elevator systems in which the support means 13 wraps around the traction sheave with 180 degrees.
- the determination of the longitudinal extent L of the safety section 17 takes place taking into account the traction sheave radius R, a wrap angle of the traction sheave, a permissible override path, a buffer stroke and the consideration of dynamic stopping distances and a safety margin.
- the length L of the security portion 17 is designed in any case so that the support means can not rock back and forth due to dynamic processes between the security section 17 and the rest of the suspension element area.
- the length of the safety section 17 is 200 mm, with a traction wheel radius R of 35 mm.
- the invention can be applied to both belt-like support means 13, as in Fig. 3 shown, as well as on rope-like support means, for example, coated steel cables, or the like apply.
- belt-like support means 13 are used, they generally have longitudinal or transverse ribs on one side as a surface structure.
- belt-like Supporting means 13 has a poly-V structure with several parallel to the longitudinal axis Y of the support means 13 extending longitudinal ribs 13.3.
- the longitudinal or transverse ribs in the region of the security section 17 are designed differently or are completely absent.
- Fig. 3 shows an embodiment in which one of the longitudinal ribs 13.5 extends over the entire length of the support means 13 (including the length L of the security section 17).
- the other longitudinal ribs have an interruption in the region of the safety section 17.
- the support means 13 on the one hand ensures that even if the safety portion 17 of the support means 13 interacts with the traction sheave 16 sufficient lateral guidance is ensured by the longitudinal rib 13.5, while on the other hand to a "deliberate slippage" of the support means due deliberately provoked slippage occurs because the traction between the traction sheave 16 and the safety section 17 is less than between another section of the suspension element 13 and the traction sheave 16.
- Fig. 4 is another inventive, belt-like support means 13 is shown.
- support means 13 is a kind of toothed belt with teeth 13.6, which extend perpendicular to the longitudinal direction Y of the support means 13. Die Tragstoff 13 Sind in der Zeichnungschreib.
- the surface structure of the support means 13 is changed so as to reduce the traction between a traction sheave 16 and the support means 13 when the safety section 17 runs onto the traction sheave 16.
- the teeth 13.6 of the toothed belt were reduced in their tooth height, or approximately removed.
- the belt-like support means 13 in the region of the security section 17 comprises a traction-reducing coating. This also allows targeted Traction be reduced to trigger when slipping over.
- belt-like support means 13 in which both the surface structure in the region of the safety section 17 and the surface properties (for example by the application of a traction-reducing coating, such as a lubricant) have been changed.
- the adjacent areas of the support means 13 are previously covered by a protective tape or stencil.
- the protective tape or stencil can be removed after a certain drying time of the adhesive lubricant.
- This method is particularly advantageous because after installation of an elevator installation, the system can be measured or tried to then determine the position of the security section 17 on the support means 13 can. Then, as described, suburb the security section can be "made” and tested after the lubricant has dried.
- Come rope-like support means 13 are used, then are particularly suitable support means 13, which include a Biologicalmindernde coating in the region of the security section 17.
- support means 13 are also provided which are specially designed for use in an elevator installation 10.
- the factors mentioned above weight of the elevator car, wrap around the traction sheave 16, condition of the traction sheave 16, etc.
- the inventive suspension means 13 must have a Security section 17 and in the region of this security section 17 have a different surface structure and / or texture as in other lengths of the support means 13th
- the longitudinal extent L of the security section 17 runs parallel to the longitudinal axis Y of the suspension element 13.
- the ratio between the linear expansion L and the total length of the suspension element 13 depends on the delivery height, the type of elevator suspension and the traction sheave radius R.
- the suspension element 13 with suspended cabin (See Fig. 2 ) about 50m long.
- With a traction sheave radius of 35 mm results in a length L of the security section 17 of preferably about 200mm.
- a belt-like support means 13 may for example be equipped with steel cables 13.4 or steel strands, as in Fig. 3 shown.
- the invention is made possible in that the section of the suspension element where the safety section 17 is provided only in an emergency situation, namely when driving over the upper position X interacts with the traction sheave in interaction. In normal operation, it never happens that the safety section 17 runs on the traction sheave 16.
- the elevator system is designed so that by a runtime control and / or a slip control and / or torque monitoring or other safety circuits of Drive is switched off as soon as the interaction between safety section 17 and traction sheave 16 occurs.
- Torque monitoring detects, for example, that, as a result of a sudden torque change - because the propulsion suddenly changes - the motor current changes rapidly and shuts down the drive.
- traction sheave 16 slips through, for example, in an elevator installation without a safety section 17, a strong heating of the respective suspension element area occurs in a short time, which may lead to the melting of a sheathing of the suspension element in the contact area between the suspension element and the traction sheave.
- the execution of the safety area 17 with the traction-reducing measures shown reduces the friction work and thus this heat load significantly.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Description
Die Erfindung betrifft eine Aufzugsanlage, nach dem Oberbegriff des Anspruchs 1 mit Mitteln zum Antreiben einer Aufzugskabine. Die Erfindung betrifft ausserdem ein Verfahren nach Anspruch 10 zum Vorsehen eines Überfahrschutzes in einer Aufzugsanlage.The invention relates to an elevator system, according to the preamble of claim 1 with means for driving an elevator car. The invention also relates to a method according to
Aufzugsanlagen weisen Tragmittel auf, um eine Aufzugskabine zu tragen und in Bewegung versetzen zu können. Zu diesem Zweck läuft das Tragmittel typischerweise um eine Treibscheibe, die von einem Antrieb angetrieben wird. In den meisten Fällen ist mindestens ein Gegengewicht vorgesehen und Aufzugskabine sowie Gegengewicht bewegen sich gegenläufig, sobald der Antrieb die Treibscheibe in Bewegung setzt. Die Traktion zwischen der Treibscheibe und dem Tragmittel ist so ausgelegt, dass selbst bei beladener Aufzugskabine die Rotation der Treibscheibe möglichst schlupffrei in eine Bewegung des Tragmittels umgesetzt wird.Elevator systems have suspension means to carry an elevator car and to be able to set in motion. For this purpose, the support means typically runs around a traction sheave, which is driven by a drive. In most cases, at least one counterweight is provided and elevator car and counterweight move in opposite directions as soon as the drive sets the traction sheave in motion. The traction between the traction sheave and the support means is designed so that even when the elevator car is loaded, the rotation of the traction sheave is converted as far as possible into a movement of the suspension element.
Bei heutigen Aufzugsanlagen sind die Aufzugskabinen leichter als bei herkömmlichen Anlagen. Daher besteht das Risiko, dass bei einem Versagen der Antriebssteuerung die Treibscheibe weiter angetrieben wird und eine leere, oder annähernd leere, Aufzugskabine auch dann in Richtung eines oberen Schachtendes befördert wird, wenn das Gegengewicht bereits auf einen Puffer aufgefahren ist und nicht mehr zum Anheben der Aufzugskabine beiträgt. Ein Abstand zwischen Kabine und Schachtende muss jedoch immer gewährleistet werden, da dieser Abstand einen Schutzraum definiert, der beispielsweise Montagepersonal vor einem Einklemmen bewahrt. Ein Eindringen der Aufzugskabine in diesen Schutzraum muss verhindert werden. Verstärkt wird diese Problematik dadurch, dass die modernen Tragmittel mit Ummantelungen oder Oberflächenprofilen versehen sind, die wegen der hohen Reibwerte eine hohe Traktion ermöglichen.In today's elevator systems, the elevator cabs are lighter than in conventional systems. Therefore, there is a risk that in case of failure of the drive control, the traction sheave is further driven and an empty, or nearly empty, elevator car is also transported towards an upper shaft end, when the counterweight is already driven onto a buffer and not for lifting the Elevator car contributes. However, a distance between the car and the shaft end must always be ensured, since this distance defines a shelter, which protects assembly personnel, for example, from getting trapped. Penetration of the elevator car into this shelter must be prevented. This problem is reinforced by the fact that the modern suspension means are provided with sheathing or surface profiles that allow high traction because of the high friction coefficients.
Aufgabe der Erfindung ist es daher eine zuverlässige Lösung zur Verwendung in einer Aufzugsanlage anzubieten, die es ermöglicht ein Hochziehen der leeren oder annähernd leeren Aufzugskabine (Überfahren genannt) zu verhindern, falls es zu einem Versagen der Antriebssteuerung, einer Fehlmanipulation oder einem sonstigen Fehler in der Aufzugsanlage kommt. Ausserdem soll die Erfindung auch zur Verhinderung des Überfahrens des Gegengewichtes in einem Aufzugsschacht einsetzbar sein.The object of the invention is therefore to provide a reliable solution for use in an elevator system, which makes it possible to avoid pulling up the empty or nearly empty elevator car (called overrun), if there is a failure of the drive control, a faulty manipulation or other error in the Elevator system is coming. In addition, the invention should also be used to prevent overrunning of the counterweight in an elevator shaft.
Diese Aufgabe wird für eine Aufzugsanlage erfindungsgemäss gelöst durch die Merkmale des Anspruchs 1.This object is achieved according to the invention for an elevator installation by the features of claim 1.
Diese Aufgabe wird durch ein erfindungsgemässes Verfahren mit den Merkmalen des Anspruchs 10 gelöst.This object is achieved by a method according to the invention with the features of
Bevorzugte Weiterbildungen der Erfindung sind durch die vom Anspruch 1 abhängigen Ansprüche 2 bis 9 und durch die vom Anspruch 10 abhängigen Ansprüche 11 und 12 definiert.Preferred embodiments of the invention are defined by claims 2 to 9 dependent on claim 1 and
Die Erfindung wird im Folgenden an Hand von Beispielen und mit Bezug auf die Zeichnung ausführlich beschrieben. Es zeigen:
- Fig. 1A
- eine schematische schnittansicht einer Aufzugsanlage gemäss Erfindung, wobei sich eine Aufzugskabine in ei- ner unteren Endposition im Aufzugsschacht befindet;
- Fig. 1B
- eine schematische Schnittansicht der Aufzugsanlage nach
Fig. 1A , wobei sich die Aufzugskabine in einer oberen Endposition im Aufzugsschacht befindet; - Fig. 1C
- eine schematische Schnittansicht der Aufzugsanlage nach
Fig. 1A , wobei die Aufzugskabine in einer Überfahrsituation gezeigt ist; - Fig. 2
- eine schematische Ansicht einer weiteren Aufzugsanlage gemäss Erfindung;
- Fig. 3
- eine schematische, perspektivische Ansicht eines Abschnitts eines ersten riemenartigen Tragmittels gemäss Erfindung;
- Fig. 4
- eine schematische Seitenansicht eines Abschnitts eines zweiten riemenartigen Tragmittels gemäss Erfindung.
- Fig. 1A
- a schematic sectional view of an elevator system according to the invention, wherein an elevator car is in a lower end position in the elevator shaft;
- Fig. 1B
- a schematic sectional view of the elevator system according to
Fig. 1A wherein the elevator car is in an upper end position in the elevator shaft; - Fig. 1C
- a schematic sectional view of the elevator system according to
Fig. 1A wherein the elevator car is shown in a crossover situation; - Fig. 2
- a schematic view of another elevator installation according to the invention;
- Fig. 3
- a schematic, perspective view of a portion of a first belt-like support means according to the invention;
- Fig. 4
- a schematic side view of a portion of a second belt-like support means according to the invention.
Gleiche und ähnliche bzw. gleich wirkende Bauteile sind in allen Figuren mit den gleichen Bezugszeichen versehen.The same and similar or equivalent components are provided in all figures with the same reference numerals.
In den
Im gezeigten Ausführungsbeispiel ist am oberen Schachtende eine Schachtdecke 14.1 oder ein Art Brücke oder Träger angeordnet, die Teile des Antriebs tragen kann. Dadurch wird der für die Aufzugskabine 11 befahrbare Bereich nach oben begrenzt, wobei im Aufzugsschacht 14 eine oberste Position (in
In den
Durchrutschen beschreibt einen Zustand bei dem die Treibscheibe 16 dreht, ohne dass das auf der Treibscheibe 16 aufliegende Tragmittel 13 eine massgebliche Bewegung macht. Eine zwischen Treibscheibe 16 und Tragmittel 13, bzw. Sicherheitsbereich 17 entstehende Reibkraft genügt nicht um das Tragmittel 13 zu bewegen. Dieser Zustand des Durchrutschens kann auch als grosser Schlupf bezeichnet werden.
Mit Schlupf wird das Verhalten eines technischen Elementes - in diesem Falle des Tragriemens 13 - das eigentlich synchronisiert zu einem anderen Element - in diesem Falle der Treibscheibe 16 - bewegt werden sollte, bei dem jedoch die Bewegung von diesem synchronen Verhältnis abweicht, bezeichnet. In der Regel "hinkt" dabei das getriebene Element dem treibenden Element immer etwas "hinterher". Im normalen Betrieb einer Aufzugsanlage ist dieser Schlupf sehr klein.In the
Slipping describes a condition in which the
With slippage, the behavior of a technical element - in this case the support belt 13 - which actually synchronized to another element - in this case, the traction sheave 16 - should be moved, but in which the movement deviates from this synchronous ratio, called. As a rule, the driven element always "lags" behind the driving element. During normal operation of a lift this slip is very small.
Die Funktion des Überfahrschutzes wird nun anhand von
In
Das Tragmittel 13 weist gemäss Erfindung einen Sicherheitsabschnitt 17 auf, der so angeordnet ist, dass dieser Sicherheitsabschnitt 17 mit der Treibscheibe 16 in Wechselwirkung gelangt wenn sich die Aufzugskabine 11 dem oberen Schachtende (z.B. 14.1) annähert. In
Dabei ist der Sicherheitsabschnitt 17 so ausgeführt, dass das Durchrutschen unter folgenden Voraussetzungen eintritt:
- (1)
das Gegengewicht 12 zieht nicht mehr an dem Tragmitteltrumm 13.1, nachdem die Aufzugskabine 11 die oberste Position X überfahren hat,da das Gegengewicht 12 auf einem Gegengewichtspuffer 12.1 aufsitzt. InFig. 1C ist angedeutet, dass ab dem Aufsetzten des Gegengewichts 12 auf dem Puffer 12.1 kein Zug mehr auf dem Trumm 13.1 ist. - (2) die
Aufzugskabine 11 bringt ein gewisses Mindestgesamtgewicht auf, das eine nach unten gerichtete Gegenkraft G an dem Tragmitteltrumm 13.2 bewirkt.
Da zu diesem
- (1) the
counterweight 12 no longer pulls on the Tragmitteltrumm 13.1, after theelevator car 11 has crossed over the uppermost position X, since thecounterweight 12 is seated on a counterweight buffer 12.1. InFig. 1C is indicated that from the placement of thecounterweight 12 on the buffer 12.1 no train on the Trumm 13.1 is. - (2) the
elevator car 11 applies a certain minimum total weight, which causes a downward counterforce G on the Tragmitteltrumm 13.2.
Since at this time, the
In
In einer besonders bevorzugten Ausführungsform der Erfindung weist der Sicherheitsabschnitt 17 eine Längenausdehnung L (parallel zu einer Längsachse Y des Tragmittels 17) auf, die mindestens dem 3.14(Pi)-fachen Wert des Radius R der Treibscheibe 16 entspricht. Diese Zahlenangaben gelten jedoch nur bei Aufzugsanlagen, bei denen das Tragmittel 13 die Treibscheibe mit 180 Grad umschlingt.
Die Bestimmung der Längenausdehnung L des Sicherheitsabschnittes 17 erfolgt unter Berücksichtigung des Treibscheibenradius R, eines Umschlingungswinkels der Treibscheibe, eines zulässigen Überfahrweges, eines Pufferhubes und der Berücksichtigung von dynamischen Anhaltestrecken sowie eines Sicherheitszuschlages. Die Länge L des Sicherheitsabschnittes 17 wird auf jeden Fall so ausgelegt, dass das Tragmittel nicht infolge dynamischer Vorgänge zwischen dem Sicherheitsabschnitt 17 und übrigem Tragmittelbereich hin und her schaukeln kann. Bei einem realisierten Beispiel beträgt die Länge des Sicherheitsabschnittes 17, bei einem Treibscheibenradius R von 35mm, 200mm.In a particularly preferred embodiment of the invention, the
The determination of the longitudinal extent L of the
Die Erfindung lässt sich sowohl auf riemenartige Tragmittel 13, wie in
Falls riemenartige Tragmittel 13 zum Einsatz kommen, dann weisen diese in der Regel auf einer Seite Längs- oder Querrippen als Oberflächenstruktur auf. Das in
In
Bei einer anderen Ausführungsform umfasst das riemenartige Tragmittel 13 im Bereich des Sicherheitsabschnitts 17 eine traktionsvermindernde Beschichtung. Auch dadurch kann gezielt die Traktion herabgesetzt werden, um beim Überfahren ein Durchrutschen auszulösen.In another embodiment, the belt-like support means 13 in the region of the
Ganz besonders bevorzugt sind riemenartige Tragmittel 13, bei denen sowohl die Oberflächenstruktur im Bereich des Sicherheitsabschnitts 17 als auch die Oberflächeneigenschaften (zum Beispiel durch das Aufbringen einer traktionsvermindernden Beschichtung, wie zum Beispiel ein Gleitmittel) verändert wurden.Very particular preference is given to belt-like support means 13 in which both the surface structure in the region of the
So kann beispielsweise mit einem Spray ein an dem Tragmittel 13 gut haftendes Gleitmittel aufgetragen werden, welches im Sicherheitsabschnitt 17 die Oberflächeneigenschaft verändert. Vorteilhafterweise werden zuvor die angrenzenden Bereiche des Tragmittels 13 mittels Schutzband oder Schablone abgedeckt. Das Schutzband oder die Schablone kann nach einer gewissen Trocknungszeit des haftenden Gleitmittels wieder entfernt werden.Thus, for example, with a spray on the support means 13 well-adhering lubricant can be applied, which changes the surface property in the
Dieses Verfahren ist besonders vorteilhaft, da nach der Montage einer Aufzugsanlage die Anlage vermessen oder ausprobiert werden kann, um dann die Lage des Sicherheitsabschnitts 17 am Tragmittel 13 festlegen zu können. Dann kann, wie beschrieben, Vorort der Sicherheitsabschnitt "hergestellt" und nach dem Trocknen des Gleitmittels getestet werden.This method is particularly advantageous because after installation of an elevator installation, the system can be measured or tried to then determine the position of the
Kommen seilartige Tragmittel 13 zum Einsatz, dann eignen sich besonders Tragmittel 13, die im Bereich des Sicherheitsabschnitts 17 eine traktionsvermindernde Beschichtung umfassen.Come rope-like support means 13 are used, then are particularly suitable support means 13, which include a traktionsvermindernde coating in the region of the
Gemäss Erfindung werden auch Tragmittel 13 bereitgestellt, die speziell zur Verwendung in einer Aufzugsanlage 10 ausgebildete sind. Bei der Auslegung des Tragmittels 13 müssen die oben genannten Faktoren (Gewicht der Aufzugskabine, Umschlingung der Treibscheibe 16, Beschaffenheit der Treibscheibe 16, usw.) Berücksichtigung finden. Um die Sicherheitswirkung beim Überfahren zu gewährleisten, muss dass erfindungsgemässe Tragmittel 13 einen Sicherheitsabschnitt 17 umfassen und im Bereich dieses Sicherheitsabschnitts 17 eine andere Oberflächenstruktur und/oder -beschaffenheit aufweisen als in anderen Längenabschnitten des Tragmittels 13.According to the invention, support means 13 are also provided which are specially designed for use in an
Vorzugsweise verläuft die Längenausdehnung L des Sicherheitsabschnittes 17 parallel zu der Längsachse Y des Tragmittels 13. Das Verhältnis zwischen der Längenausdehnung L und der Gesamtlänge des Tragmittels 13 ist abhängig von der Förderhöhe, der Art der Aufzugsaufhängung und dem Treibscheibenradius R. So ist beispielsweise bei einer Förderhöhe von 20m das Tragmittel 13 bei untergehängter Kabine (Siehe
Bei all diesen Überlegungen muss jedoch stets berücksichtigt werden, dass durch das Anbringen oder Vorsehen des Sicherheitsabschnitts 17 die Tragfähigkeit des Tragmittels 13 nicht gefährdet wird. Zu diesem Zweck kann ein riemenartiges Tragmittel 13 zum Beispiel mit Stahlseilen 13.4 oder Stahllitzen ausgestattet sein, wie in
Ermöglicht wird die Erfindung dadurch, dass der Abschnitt des Tragmittels wo der Sicherheitsabschnitt 17 vorgesehen wird nur in einer Notsituation, nämlich beim Überfahren der oberen Position X mit der Treibscheibe in Wechselwirkung tritt. Im Normalbetrieb kommt es nie dazu, dass der Sicherheitsabschnitt 17 auf die Treibscheibe 16 aufläuft.The invention is made possible in that the section of the suspension element where the
Vorzugsweise ist die Aufzugsanlage so ausgelegt, dass durch eine Laufzeitkontrolle und/oder eine Durchrutschkontrolle und/oder einer Drehmomentüberwachung oder andere Sicherheitskreise der Antrieb abgeschaltet wird, sobald die Wechselwirkung zwischen Sicherheitsabschnitt 17 und Treibscheibe 16 eintritt. Die Drehmomentüberwachung stellt beispielsweise fest, wenn als Folge eines plötzlichen Drehmomentwechsels - weil die Treibfähigkeit plötzlich ändert - der Motorstrom schnell ändert und stellt den Antrieb ab. Durch diese ergänzenden Massnahmen, aber auch besonders durch die Anordnung des erfindungsgemässen Sicherheitsabschnittes 17 wird die Aufzugsanlage vor weiterem Schaden, wie beispielsweise übermässigem Erwärmen des Antriebes und des Tragmittels bewahrt.
Rutscht beispielsweise bei einer Aufzugsanlage ohne Sicherheitsabschnitt 17 die Treibscheibe 16 durch, ergibt sich in kurzer Zeit ein starkes Erwärmen des betreffenden Tragmittelbereiches, was unter Umständen zum Schmelzen einer Ummantelung des Tragmittels, im Kontaktbereich von Tragmittel zur Treibscheibe, führen kann. Die Ausführung des Sicherheitsbereiches 17 mit den dargestellten Traktionsvermindernden Massnahmen reduziert die Reibarbeit und damit diese Wärmebelastung deutlich.Preferably, the elevator system is designed so that by a runtime control and / or a slip control and / or torque monitoring or other safety circuits of Drive is switched off as soon as the interaction between
If the
Claims (12)
- Lift installation (10) with support means (13) and drive pulley (16) for driving the support means (13), wherein the support means (13) at least partly loops around the drive pulley (16), characterised in that the support means (13) comprises a safety section (17) which produces a slipping through by interaction between the drive pulley (16) and the safety section (17) of the support means (13).
- Lift installation (10) according to claim 1, characterised in that the support means (13) has in the region of the safety section (17) a surface structure and/or surface property different than in other length sections of the support means (13).
- Lift installation (10) according to claim 1 or 2, characterised in that the safety section (17) has parallel to a longitudinal axis of the support means (17) a length (L) corresponding with at least 3.14 (B) times the radius (R) of the drive pulley (16).
- Lift installation (10) according to claim 1, 2 or 3, characterised in that the support means (13) is a belt-like support means.
- Lift installation (10) according to claim 1, 2 or 3, characterised in that the support means (13) is a cable-like support means.
- Lift installation (10) according to claim 4, characterised in that belt-like support means (13) has longitudinal or transverse ribs as surface structure, wherein the longitudinal or transverse ribs are of different construction or entirely absent in the region of the safety section (17).
- Lift installation (10) according to claim 4 or 6, characterised in that the belt-like support means (13) comprises a traction-reducing coating in the region of the safety section (17).
- Lift installation (10) according to claim 5, characterised in that the cable-like support means (13) comprises a traction-reducing coating in the region of the safety section (17).
- Lift installation (10) according to one of claims 1 to 8, characterised in that the safety section (17) interacts with the drive pulley (16) when the lift cage (11) after overrunning an upper position (X) or a counterweight (12) after overrunning an upper position (W) approaches an upper shaft end (14.1).
- Method of providing overrun protection in a lift installation (10) with a support means (13) and a driven drive pulley (16) for driving the support means (13), wherein the support means (13) at least partly loops around the drive pulley (16), characterised by the following steps:- establishing a safety section (17) at the support means (13),- covering a part of the support means (13) by means of protective tape or template, wherein the part covered by means of protective tape or template adjoins the safety section (17),- applying a slide means, which adheres to the support means (13), in the region of the safety section (17) and- removing the protective tape or the template.
- Method according to claim 10, characterised in that the slide means is sprayed on.
- Method according to claim 10 or 11, characterised in that the safety section (17) is so arranged that the safety section (17) interacts with the drive pulley (16) when a lift cage (11) after overrunning an upper position (X) or a counterweight (12) after overrunning an upper position (W) approaches an upper shaft end (14.1), wherein a slipping through results in the region of the safety section (17) through the interaction between the drive pulley (16) and the support means (13).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06117644A EP1748016B1 (en) | 2005-07-25 | 2006-07-21 | System comprising traction means for moving an elevator car and corresponding traction means |
PL06117644T PL1748016T3 (en) | 2005-07-25 | 2006-07-21 | System comprising traction means for moving an elevator car and corresponding traction means |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05106804 | 2005-07-25 | ||
EP06117644A EP1748016B1 (en) | 2005-07-25 | 2006-07-21 | System comprising traction means for moving an elevator car and corresponding traction means |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1748016A1 EP1748016A1 (en) | 2007-01-31 |
EP1748016B1 true EP1748016B1 (en) | 2011-03-23 |
Family
ID=35448314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06117644A Revoked EP1748016B1 (en) | 2005-07-25 | 2006-07-21 | System comprising traction means for moving an elevator car and corresponding traction means |
Country Status (21)
Country | Link |
---|---|
US (1) | US7207420B2 (en) |
EP (1) | EP1748016B1 (en) |
JP (1) | JP2007031149A (en) |
KR (1) | KR101270849B1 (en) |
CN (1) | CN100579885C (en) |
AR (1) | AR054177A1 (en) |
AT (1) | ATE502891T1 (en) |
AU (1) | AU2006203139B2 (en) |
BR (1) | BRPI0602455A (en) |
CA (1) | CA2553299C (en) |
DE (1) | DE502006009139D1 (en) |
ES (1) | ES2363369T3 (en) |
HK (1) | HK1103388A1 (en) |
MX (1) | MXPA06008176A (en) |
MY (1) | MY142343A (en) |
NO (1) | NO20063400L (en) |
NZ (1) | NZ548720A (en) |
PL (1) | PL1748016T3 (en) |
SG (1) | SG129353A1 (en) |
TW (1) | TW200710013A (en) |
ZA (1) | ZA200605012B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1886957A1 (en) | 2006-08-11 | 2008-02-13 | Inventio Ag | Lift belt for a lift system and method for manufacturing such a lift belt |
DE202008001786U1 (en) | 2007-03-12 | 2008-12-24 | Inventio Ag | Elevator installation, suspension element for an elevator installation and device for producing a suspension element |
JP4474432B2 (en) | 2007-03-27 | 2010-06-02 | 日信工業株式会社 | Vehicle disc brake |
CN101679000B (en) | 2007-06-21 | 2012-07-18 | 三菱电机株式会社 | Safety device for elevator and rope slip detection method |
CH705350A1 (en) * | 2011-08-09 | 2013-02-15 | Brugg Drahtseil Ag | Traction member with a force transfer surface with different frictional properties. |
EP2958843B1 (en) * | 2013-02-22 | 2017-08-02 | KONE Corporation | Method and arrangement for monitoring the safety of a counterweighted elevator |
EP3126277B1 (en) * | 2014-04-01 | 2020-08-12 | Otis Elevator Company | Grooved belt for elevator system |
CN104192674B (en) * | 2014-08-01 | 2017-06-20 | 杭州西奥电梯有限公司 | A kind of elevator traction suspension |
EP2990370B1 (en) * | 2014-09-01 | 2017-06-14 | KONE Corporation | Elevator |
CN106144856A (en) * | 2016-08-24 | 2016-11-23 | 森赫电梯股份有限公司 | A kind of traction-type steel band drives suspension type passenger elevator without machine room |
US11407616B2 (en) * | 2020-01-24 | 2022-08-09 | Otis Elevator Company | Elevator belt surface protection for installation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US2855072A (en) * | 1955-06-28 | 1958-10-07 | George C Taylor | Hoist |
US4892510A (en) * | 1985-03-04 | 1990-01-09 | Bando Chemical Industries, Ltd. | V-ribbed belt and the method of manufacturing the same |
JPH0687574A (en) * | 1992-09-10 | 1994-03-29 | Hitachi Ltd | End floor safety device for elevator |
CN1224569C (en) * | 2000-05-01 | 2005-10-26 | 因温特奥股份公司 | Device for detecting position of elevator car |
WO2003008321A1 (en) * | 2001-07-13 | 2003-01-30 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
JP2003073045A (en) * | 2001-08-30 | 2003-03-12 | Mitsubishi Electric Corp | End point switch of elevator |
EP1396658B1 (en) * | 2002-09-07 | 2006-07-12 | ContiTech Antriebssysteme GmbH | V-ribbed belt and method for fabricating the same |
-
2006
- 2006-05-29 TW TW095118991A patent/TW200710013A/en unknown
- 2006-05-31 SG SG200603662A patent/SG129353A1/en unknown
- 2006-06-12 MY MYPI20062731A patent/MY142343A/en unknown
- 2006-06-19 ZA ZA200605012A patent/ZA200605012B/en unknown
- 2006-06-29 BR BRPI0602455-6A patent/BRPI0602455A/en not_active IP Right Cessation
- 2006-07-12 JP JP2006191213A patent/JP2007031149A/en not_active Withdrawn
- 2006-07-19 MX MXPA06008176A patent/MXPA06008176A/en active IP Right Grant
- 2006-07-21 AT AT06117644T patent/ATE502891T1/en active
- 2006-07-21 CN CN200610107799A patent/CN100579885C/en not_active Expired - Fee Related
- 2006-07-21 CA CA2553299A patent/CA2553299C/en not_active Expired - Fee Related
- 2006-07-21 PL PL06117644T patent/PL1748016T3/en unknown
- 2006-07-21 DE DE502006009139T patent/DE502006009139D1/en active Active
- 2006-07-21 ES ES06117644T patent/ES2363369T3/en active Active
- 2006-07-21 NO NO20063400A patent/NO20063400L/en not_active Application Discontinuation
- 2006-07-21 EP EP06117644A patent/EP1748016B1/en not_active Revoked
- 2006-07-24 AU AU2006203139A patent/AU2006203139B2/en not_active Ceased
- 2006-07-24 NZ NZ548720A patent/NZ548720A/en not_active IP Right Cessation
- 2006-07-24 US US11/459,386 patent/US7207420B2/en not_active Expired - Fee Related
- 2006-07-25 AR ARP060103211A patent/AR054177A1/en active IP Right Grant
- 2006-07-25 KR KR1020060069920A patent/KR101270849B1/en not_active IP Right Cessation
-
2007
- 2007-07-18 HK HK07107708.1A patent/HK1103388A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2553299C (en) | 2013-10-08 |
ES2363369T3 (en) | 2011-08-02 |
DE502006009139D1 (en) | 2011-05-05 |
KR20070013247A (en) | 2007-01-30 |
MY142343A (en) | 2010-11-15 |
SG129353A1 (en) | 2007-02-26 |
US7207420B2 (en) | 2007-04-24 |
NO20063400L (en) | 2007-01-26 |
CN100579885C (en) | 2010-01-13 |
NZ548720A (en) | 2007-09-28 |
HK1103388A1 (en) | 2007-12-21 |
KR101270849B1 (en) | 2013-06-05 |
ZA200605012B (en) | 2007-09-26 |
US20070034452A1 (en) | 2007-02-15 |
ATE502891T1 (en) | 2011-04-15 |
JP2007031149A (en) | 2007-02-08 |
CA2553299A1 (en) | 2007-01-25 |
MXPA06008176A (en) | 2007-01-24 |
AU2006203139A1 (en) | 2007-02-08 |
EP1748016A1 (en) | 2007-01-31 |
AR054177A1 (en) | 2007-06-06 |
AU2006203139B2 (en) | 2011-08-18 |
CN1903691A (en) | 2007-01-31 |
BRPI0602455A (en) | 2007-03-13 |
TW200710013A (en) | 2007-03-16 |
PL1748016T3 (en) | 2011-08-31 |
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