EP1508545B1 - Elevator system with load-related cable hitch - Google Patents
Elevator system with load-related cable hitch Download PDFInfo
- Publication number
- EP1508545B1 EP1508545B1 EP04017606.7A EP04017606A EP1508545B1 EP 1508545 B1 EP1508545 B1 EP 1508545B1 EP 04017606 A EP04017606 A EP 04017606A EP 1508545 B1 EP1508545 B1 EP 1508545B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support means
- lift
- lift cage
- guide rail
- cage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000009434 installation Methods 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 19
- 239000000725 suspension Substances 0.000 description 37
- 238000005452 bending Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
Definitions
- the invention relates to an elevator installation with a tilting device according to the preamble of claim 1 and a tilting device according to the preamble of claim 11.
- the support means are fixed in the region of a counterweight, carry a counterweight, are deflected on an upper (drive) disc and then run in the form of a loop under the elevator car and are fixed to the other side of the elevator car.
- This fixation is also referred to as the vehicle-side suspension element fixing points, whereas the fixation in the region of the counterweight is referred to as the counterweight-side suspension element fixing point.
- Fig. 1A a variant is shown in which the cabin-side suspension element fixed point 1 asymmetric on the Guide rail 5 is fixed.
- the suspension means (not in the Fig. 1A to 1E shown), pull with a force F1 on the suspension element fixed point 1. This results in a bending moment acting on the guide rail 5.
- a variant is shown in which a cab-side support means fixed point 2 is provided which is supported on the one hand on the guide rail 5 and on the other hand at a point 2.1 against a shaft wall.
- An advantage of this variant is the bending moment-free introduction of force in the rail 5, disadvantageous, however, is the fact that it can lead to a slanted position in a reduction of the elevator shaft, or in temperature-induced expansions of the rail 5.
- the wall of the elevator shaft is loaded by the type of suspension shown.
- a cab-side support means fixed point 3 is provided, which is supported on a shaft wall, without being in contact with the guide rail 5.
- This type of suspension leads to a high wall load.
- the suspension element fixing point 4 can also be supported on one side on a guide rail 5 and on the other side in a wall niche 7 of the elevator shaft 6, as in FIG Fig. 1D shown.
- the support in the wall niche 7 is form-fitting.
- Fig. 1E can the support means fixed point 8 be mounted on both sides in wall niches 7 of the elevator shaft 6. There is no load on the guide rail 5, but the entire load must be carried through the walls of the shaft 6.
- Embodiments of Tragstofffixticianen lifts which comprise per support means strand a one- or two-armed lever which is pivotally mounted about a fixed to a support structure horizontal axis and aligned horizontally.
- the lever carries at one end the support means and is held by a force acting on the same lever arm or optionally on the second lever arm elastic element resiliently against the tensile force of the support means in approximately horizontal position.
- An additional advantage of the invention is the fact that a length compensation between the individual support means is made by the luffing device, since the luffing device has a self-balancing effect on the support means.
- the luffing device requires no support or fixation on one of the walls of a hoistway.
- the luffing device allows a compensation, if the suspension means have smaller differences in length, if the design should have smaller overall asymmetries, or if it should come in the course of time to a different elongation of the support means.
- a reaction - for example an emergency stop - can be triggered via the luffing device in case of uneven loading, or if one of the suspension elements should break.
- FIG Fig. 2 A first embodiment of an elevator installation according to the invention is shown in FIG Fig. 2 shown in a schematic perspective view.
- a machine room-less elevator system 20 is shown, which may comprise a lift shaft or "boxless" running.
- the present invention relates to a machine room-less elevator installation 20, which comprises an elevator cage 13 and at least one first guide rail 15 for vertical guidance of the elevator cage 13.
- the first guide rail 15 is in Fig. 2 only shown by a dashed line.
- There are two support means 22 are provided, which are substantially parallel to each other.
- the front suspension means 22.1 and the rear suspension means 22.2 where this is necessary for better distinction.
- the same are fixed in the region of the first suspension element fixing points 29 via a luffing device 30 on the guide rail 15.
- Each of the support means 22.1 and 22.2 undermines the elevator car 13, wraps around a traction sheave 12, in front of a drive (not in Fig.
- the support means 22 carries the counterweight 18 in that the support means 22 revolve around counterweight rollers 21 and are fixed at the counterweight end in the region of second support means 28 fixed points.
- the looping of the elevator car 13 takes place in the embodiment shown with Kabinentragrollen 17.1 and guide rollers 17.2, which are each designed in pairs.
- the said rocking device 30 has two arms and is in Fig. 2 only indicated schematically. It is mechanically fastened to the guide rail 15 such that a rocking movement of the luffing device 30 about an axis is possible, which runs essentially perpendicular to the guide rail 15. At each of the two arms of the rocker 30 each one of the support means fixed points is provided.
- the luffing device 30 allows for uneven loading of the two support means 22.1 and 22.2 a rocking movement by a length compensation is carried out automatically. If there is a suspension element breakage of one of the suspension elements, the rocker device 30 is suddenly loaded asymmetrically, which causes a rocking movement of the rocker device 30 in one direction.
- This rocking movement can be detected either by means of a push button or a non-contact switch to interrupt the driving operation of the elevator system, or the rocking device 30 can mechanically engage in a speed limiter to trigger a braking. It can also be triggered alternatively or additionally a warning signal. Further details will be described later.
- FIG. 3 Details of a similar embodiment are the Fig. 3 refer to.
- a machine roomless elevator system 20 is shown.
- the reference numeral 11 is a
- Lift shaft characterized in that a drive 10 with traction sheave (s) 12, the elevator car 13 via a paired support means 22 moves up and down.
- the drive 10 together with traction sheave (s) 12 sits laterally above the elevator car 13 on one of the guide rails 15, which is arranged to the left of the elevator car 13.
- a further guide rail 15 is located to the right of the elevator car 13.
- Guide shoes 14 are provided on the elevator car 13 in order to guide the elevator car 13 vertically along the two guide rails 15.
- the drive 10 has an acting on a traction sheave shaft 25 drive shaft 24 which is aligned parallel to the counterweight side wall 13.1 of the elevator car 13 and carries at least one traction sheave 26.
- the drive 10 and the traction sheave shaft 25 with at least one traction sheave 12 are mounted on a machine carrier 23, which is supported on the two counterweight guide rails 18.1 and is mechanically connected thereto. It is also possible to mount the drive 10 and the said elements on or on the guide rail 15, which is arranged to the left of the elevator car 13. Alternatively, drive 10 and the aforementioned elements may be on the counterweight guide rails 18.1 and the guide rails 15 to be supported.
- a brake unit 27 may be arranged, which enables a braking of the elevator car 13.
- the brake unit 27 is in Fig. 3 indicated only by dashed lines, since it sits behind the drive 10.
- the counterweight-side suspension element fixing points 28 of the suspension elements 22 are fastened in the region below the machine carrier 23.
- this attachment by means of screws via which the position of the support means end can be adjusted individually.
- an adjustment can be made, which allows the rocker 30 in a predefined position, for example to bring a horizontal position.
- the two support means 22 (22.1 and 22.2) are substantially parallel to each other. From the counterweight-side suspension element fixing points 28, the suspension elements 22 extend downwards, partially around the counterweight support rollers 21, and are guided further up the elevator shaft 11 around the traction sheave (s) 26. From there, the support means 22 run along the left side wall 13.1 of the elevator car 13 downwards and are then at least partially guided around the Kabinentragrollen 17.1 around. This type of suspension is called underling. On the right side of the elevator car 13, the suspension elements 22 are guided upwards, where each of the suspension elements 22 is fastened to an arm of a luffing device 30 in the area of the cabin-side suspension element fixing points 29.
- suspension means is to be understood as synonymous with any type of ropes and means suitable for carrying and moving the elevator car 13 and the counterweight 18.
- the support means are flat or V-ribbed belts. It can be used in connection with the invention but also steel or plastic ropes with a round cross section as a support means.
- the rocker device 30 comprises a first arm 30.1 and a second arm 30.2. These arms 30.1 and 30.2 are preferably but not necessarily symmetrically arranged with respect to a rotation axis 30.3, which in the example shown extends perpendicular to the plane of the drawing.
- the axis of rotation 30.3 is mounted on or on the guide rail 15.
- Each of the two arms 30.1 and 30.2 has fastening points 30.4 and 30.5, which serve for fastening the suspension elements 22.1 and 22.2. It is only important that the attachment points 30.4 and 30.5 are arranged symmetrically with respect to the axis of rotation 30.3.
- the attachment of the support means 22.1 and 22.2 by means of round rods 31.1, 31.2 which are designed in the upper part as eyelets 31.3, 31.4.
- the eyelets 31.3, 31.4 sit on axles 30.7, 30.8, or the like.
- There are clamping or screw 22.3 and 22.4 are provided which receive the ends of flat or V-ribbed belts 22.1, 22.2 and fix.
- the support means are V-ribbed belts 22.1, 22.2, as can be seen from the parallel lines which are intended to represent the ribs of the belts.
- the round rods 31.1, 31.2 can be designed as threaded spindles in order to be able to adjust the position of the arms of the rocker device 30 by rotating the round rods 31.1, 31.2.
- the luffing device 30 is arranged on or on the guide rail 15, a part of the load, which is supported by the support means 22.1, and 22.2 is introduced into the guide rail 15.
- the guide rail 15 must therefore apply a counterforce F, but runs centrally in the guide rail 15 and generates no undesirable torques in the x-y plane or in the y-z plane, which act on the guide rail 15.
- Due to the ideal as frictionless running luffing device 30, support means forces are always evenly distributed to the support means 22.1, and 22.2.
- An inclination of the luffing device 30 may arise because the support means have 22.1, and 22.2 have different lengths, or in that it has come to the installation to asymmetries.
- Fig. 4 the luffing device 30 is also shown in a position which it occupies when the support means 22.1 is shorter than the support means 22.2. This position of the rocking device 30 is shown by dashed lines. Due to the unequal length of the support means 22.1, and 22.2, there is a rocking motion about the axis 30.3, which can be quantified by the angle ß. An abutment 36 for the arms of the luffing device 30 can optionally be provided on the guide rail 15.
- an optional device 32 which switches off the elevator installation 20 and / or brakes the elevator car (13) and / or triggers a warning signal in the event of a rocking movement that exceeds a limit value.
- This device 32 is referred to herein for simplicity as a limiting device. It may, for example, be a button that electrically conductively connects two contacts, as long as the rocker device 30 is in an angular range that is smaller than ⁇ ß. If the luffing device 30 releases the angle range .beta. Up or down, for example as a result of different carrier fluid or if a suspension element breaks, the pushbutton interrupts the electrically conductive connection.
- the button can be part of the safety circuit that is usually present in elevator systems.
- a non-contact switch can also be used.
- an inclination sensor or inclination switch is used, which is arranged in the region of the rocker device 30 such that a reaction is triggered when excessive deflection of the rocker device 30 occurs.
- Fig. 5 a section is shown which extends through an inventive rocking device 30 and guide rail 15.
- the Fig. 5 serves to explain the geometric arrangement of a preferred embodiment.
- the luffing device 30 is arranged and designed so that it is supported on the centroid P of the guide rail 15 so that a connecting line X between two support means extends through this centroid.
- the distance a of the two axes 30.7 and 30.8, which symbolize the force application positions of the support means, from the point P is the same for both arms 30.1 and 30.2.
- the two axes 30.7 and 30.8 are in Fig. 5 indicated by dashed lines.
- the connection of the support means with the arms of the rocking device is designed according to the invention so that it allows at least small rotational movements.
- the luffing device of the different support medium elongation can perform appropriate rocking movements.
- the rotational movement can be achieved by the attachment of the support means to the arms 30.1, 30.2 of the luffing device 30 by means of eyelets 31.3, 31.4 and axes 30.7, 30.8 is executed.
- secondary rockers can also be provided, which are connected via axes with the arms 30.1, 30.2 of the luffing device. These secondary rockers can perform small rocking movements with respect to the rocker.
- Another embodiment is characterized in that the rods 31.1, 31.2 are flexible and connected at their upper ends in the region of the eyelets fixed to the arms of the Wippvorraum. The flexibility of the rods 31.1, 31.2 gives the necessary freedom of movement.
- Fig. 6 a schematic arrangement is shown which, similar to the limiting device 32 triggers a reaction when the rocking movement exceeds a limit. If the deflection of the arms of the luffing device 40 by large differences in length of the support means 42.1, 42.2 or due to a Tragstoffbruchs exceeds a certain limit, the blocking pendulum 47 of a pendulum speed limiter 43 of known type is forced into blocking position by the arm 41. Such speed limiters 43 are used to limit the speed of elevator cars.
- a closed rope 44 namely a so-called speed limiter rope is used as auxiliary rope.
- This speed limiter cable 44 runs around a cable pulley 45 of the speed limiter 43 mounted in the elevator shaft at the top and around a tension pulley (not in FIG Fig. 6 shown).
- the speed governor cable 44 is connected to the elevator car via a catcher trip lever 46, which not in Fig. 6 is shown. If the speed of the elevator car exceeds a certain limit speed, then the pulley 45 of the speed limiter 43 and with it the speed limiter cable 44 are blocked by the blocking pendulum 47, whereby the braked speed limiter cable 44 actuates the safety gear release lever 46 moving with the moving elevator car so that triggers a mounted on the elevator car safety device triggers.
- the safety gear can be triggered when the deflection of the arms of the rocker 40 by large differences in length of the support means 42.1, 42.2 or due to a Tragstoffbruchs exceeds a certain limit.
- the arm 41 of the rocker 40 actuates either directly or via a lever 50, the blocking pendulum 47 and thereby causes the above-described blocking of the speed limiter 43 and the triggering of the safety brake.
- the rocker device 40 is supported on the guide rail 48.
- the speed limiter 43 can be carried by the guide rail 48 via a mechanical connection 49.
- the limiting device 32 (FIG. Fig. 4 ) can also electrically, for example via a solenoid, the speed limiter according to Fig. 6 trigger.
- the luffing device 30 is mounted so that its rocking movements are slightly damped. Thus, short load fluctuations, for example due to vibrations of the elevator car 13, can be damped. Additionally or alternatively, means may be provided which as Stop for the luffing device 30; 40 serve. In Fig. 6 For this purpose serving adjustable stop screws 60 are shown.
- Embodiments with 4, 6 or more support means 52.1 - 52.4 can be designed so that in each case two of the support means 52.1, 52.2 and 52.3, 52.4 are mounted in pairs on a rocker 55.1 and 55.2. Two such rockers 55.1 and 55.2 are in turn suspended together on a parent rocker 55.3, as shown schematically in FIG Fig. 7 shown. The entire rocking device is in turn supported on the guide rail 51.
- Another embodiment is characterized in that the support means are also mounted on the counterweight side of the local guide rail.
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Description
Die Erfindung betrifft eine Aufzugsanlage mit Wippvorrichtung nach dem Oberbegriff des Anspruchs 1 und eine Wippvorrichtung nach dem Oberbegriff des Anspruchs 11.The invention relates to an elevator installation with a tilting device according to the preamble of
Es gibt verschiedene Aufzugsanlagen, die eine geradzahlige Anzahl an Tragmitteln, zum Beispiel Flach- oder Keilrippenriemen, zum Tragen und Antreiben der Aufzugskabine aufweisen. Typischerweise sind die Tragmittel im Bereich eines Gegengewichts fixiert, tragen ein Gegengewicht, werden an einer oberen (Antriebs-)Scheibe umgelenkt und verlaufen dann in Form einer Unterschlingung unter der Aufzugskabine hindurch und sind an der anderen Seite der Aufzugskabine fixiert. Diese Fixierung bezeichnet man auch als kabinenseitige Tragmittelfixpunkte wohingegen die Fixierung im Bereich des Gegengewichts als gegengewichtsseitige Tragmittelfixpunkt bezeichnet wird.There are various elevator systems which have an even number of support means, for example flat or V-ribbed belts, for carrying and driving the elevator car. Typically, the support means are fixed in the region of a counterweight, carry a counterweight, are deflected on an upper (drive) disc and then run in the form of a loop under the elevator car and are fixed to the other side of the elevator car. This fixation is also referred to as the vehicle-side suspension element fixing points, whereas the fixation in the region of the counterweight is referred to as the counterweight-side suspension element fixing point.
Es gibt verschiedene Möglichkeiten, diese kabinenseitigen Tragmittelfixpunkte auszuführen. Fünf Beispiele sind in den
Teilweise wird vorgeschlagen, die kabinenseitigen Tragmittelfixpunkte an einer Führungsschiene 5 vorzusehen, die zum vertikalen Führen einer Aufzugskabine dient. Diese Art der Befestigung belastet die Führungsschiene 5 und führt zu einem Biegemoment, das auf die Schiene 5 wirkt.It is sometimes proposed to provide the cabin-side suspension element fixing points on a
In
In
In
Der Tragmittelfixpunkt 4 kann auch auf einer Seite an einer Führungsschiene 5 und auf der anderen Seite in einer Wandnische 7 des Aufzugsschachts 6 abgestützt sein, wie in
Gemäss
Aus
Diese Tragmittelfixpunkte haben den Vorteil, dass sie die Stützstruktur nur geringfügig auf Biegung belasten und dass sie dank dem elastischen Element unterschiedliche Belastungen in parallel angeordneten Tragmittelsträngen etwas ausgleichen können.These support means fixed points have the advantage that they only slightly burden the support structure on bending and that they can compensate for different loads in parallel suspension element strands thanks to the elastic element something.
Nachteilig bei dieser Ausführung der Tragmittelfixpunkte ist jedoch, dass die infolge unterschiedlicher Längung der parallel angeordneten Tragmittel erforderlichen unterschiedlich grossen Ausgleichsbewegungen der Hebel und der elastischen Elemente unterschiedliche Federkräfte bewirken. Dies hat zur Folge, dass die parallel angeordneten Tragmittel durch unterschiedliche Anteile an der Gesamtlast belastet sind.However, a disadvantage of this embodiment of the support means fixing points is that the different large compensating movements of the levers and the elastic elements required as a result of different elongation of the suspension elements arranged in parallel cause different spring forces. This has the consequence that the parallel arranged suspension means are loaded by different proportions of the total load.
Es stellt sich nun die Aufgabe, einen Tragmittelfixpunkt für Aufzugsanlagen vorzusehen, die paarweise angeordnete Tragmittel haben, wobei die Nachteile bisheriger Lösungen vermieden oder reduziert werden sollen.It is now the task of providing a support means fixed point for elevator systems, which have paired suspension means, the disadvantages of previous solutions should be avoided or reduced.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäss durch eine Aufzugsanlage mit den Merkmalen des kennzeichnenden Teils des Anspruchs 1 und eine Wippvorrichtung mit den Merkmalen des kennzeichnenden Teils des Anspruchs 11.The solution of this object is achieved according to the invention by an elevator system with the features of the characterizing part of
Bevorzugte Weiterbildungen der erfindungsgemässen Aufzugsanlage sind durch die abhängigen Ansprüche 2 bis 10, und Weiterbildungen der erfindungsgemässen Wippvorrichtung durch die abhängigen Ansprüche 12 und 13 definiert.Preferred developments of the elevator system according to the invention are defined by the
Es ist ein Vorteil der Erfindung, dass die Kraft von den Tragmitteln zentral in die Führungsschiene eingeleitet wird. Dadurch werden Biegemomente vermieden. Ein weiterer Vorteil ist darin zu sehen, dass es keinerlei Abstützung oder Fixierung der Tragmittel an einer Wand eines Aufzugsschachts bedarf. Die Erfindung ist somit besonders gut geeignet für Aufzugsanlagen, die ohne Aufzugsschacht im konventionellen Sinne auskommen.It is an advantage of the invention that the force is introduced centrally from the support means into the guide rail. As a result, bending moments are avoided. Another advantage is the fact that it requires no support or fixation of the support means on a wall of a hoistway. The invention is therefore particularly well suited for elevator systems that do not require elevator shaft in the conventional sense.
Ein zusätzlicher Vorteil der Erfindung ist darin zu sehen, dass durch die Wippvorrichtung ein Längenausgleich zwischen den einzelnen Tragmitteln vorgenommen wird, da die Wippvorrichtung eine selbstausgleichende Wirkung auf die Tragmittel hat.An additional advantage of the invention is the fact that a length compensation between the individual support means is made by the luffing device, since the luffing device has a self-balancing effect on the support means.
Die Wippvorrichtung, gemäss Erfindung, bedarf keinerlei Abstützung oder Fixierung an einer der Wände eines Aufzugsschachts.The luffing device, according to the invention, requires no support or fixation on one of the walls of a hoistway.
Die Wippvorrichtung, gemäss Erfindung, erlaubt einen Ausgleich, falls die Tragmittel kleinere Längenunterschiede aufweisen, falls die Auslegung insgesamt kleinere Unsymmetrien aufweisen sollte, oder falls es im Laufe der Zeit zu einer unterschiedlichen Längung der Tragmittel kommen sollte.The luffing device, according to the invention, allows a compensation, if the suspension means have smaller differences in length, if the design should have smaller overall asymmetries, or if it should come in the course of time to a different elongation of the support means.
Je nach Ausführungsform kann über die Wippvorrichtung bei ungleichmässiger Belastung, oder falls eines der Tragmittel brechen sollte, eine Reaktion - Zum Beispiel ein Notstopp - ausgelöst werden.Depending on the embodiment, a reaction - for example an emergency stop - can be triggered via the luffing device in case of uneven loading, or if one of the suspension elements should break.
Die Erfindung ist im Folgenden anhand in den Zeichnungen dargestellter Ausführungsbeispiele ausführlich beschrieben.
Es zeigen
- Fig. 1A bis 1E
- verschiedene Varianten bekannter Aufhängungen für ein Tragmittel;
- Fig. 2
- eine schematische Ansicht einer ersten Aufzugsanlage gemäss Erfindung;
- Fig. 3
- eine schematische Schnittansicht einer weiteren Aufzugsanlage gemäss Erfindung;
- Fig. 4
- Details einer Wippvorrichtung gemäss Erfindung;
- Fig. 5
- eine Schnittdarstellung einer Wippvorrichtung gemäss Erfindung;
- Fig. 6
- eine schematische Ansicht einer Wippvorrichtung mit Begrenzungsvorrichtung, gemäss Erfindung;
- Fig. 7
- eine schematische Ansicht einer Wippvorrichtung für 4 Tragmittel, gemäss Erfindung.
Show it
- Fig. 1A to 1E
- various variants of known suspensions for a suspension element;
- Fig. 2
- a schematic view of a first elevator installation according to the invention;
- Fig. 3
- a schematic sectional view of another elevator installation according to the invention;
- Fig. 4
- Details of a luffing device according to the invention;
- Fig. 5
- a sectional view of a rocking device according to the invention;
- Fig. 6
- a schematic view of a rocker device with limiting device, according to the invention;
- Fig. 7
- a schematic view of a luffing device for 4 suspension means, according to the invention.
Eine erste Ausführungsform einer Aufzugsanlage gemäss Erfindung ist in
Die vorliegende Erfindung betrifft eine maschinenraumlose Aufzugsanlage 20, die eine Aufzugskabine 13 und mindestens eine erste Führungsschiene 15 zum vertikalen Führen der Aufzugskabine 13 umfasst. Die erste Führungsschiene 15 ist in
Die genannte Wippvorrichtung 30 weist zwei Arme auf und ist in
Details einer ähnlichen Ausführungsform sind der
Aufzugsschacht gekennzeichnet, in dem ein Antrieb 10 mit Treibscheibe(n) 12 die Aufzugskabine 13 über ein paarweise angeordnetes Tragmittel 22 aufwärts und abwärts bewegt. Der Antrieb 10 samt Treibscheibe(n) 12 sitzt seitlich oberhalb der Aufzugskabine 13 auf einer der Führungsschienen 15, die links von der Aufzugskabine 13 angeordnet ist. Eine weitere Führungsschiene 15 befindet sich rechts von der Aufzugskabine 13. An der Aufzugskabine 13 sind Führungsschuhe 14 vorgesehen, um die Aufzugskabine 13 vertikal entlang der beiden Führungsschienen 15 zu führen.Lift shaft characterized in that a drive 10 with traction sheave (s) 12, the
Unterhalb des Kabinenbodens 16 der Aufzugskabine 13 sind zwei Paare von Kabinentragrollen 17.1 angebracht, über welche die Trag- und Beschleunigungskräfte auf die Aufzugskabine 13 übertragen werden. Seitlich der Aufzugskabine 13 ist das Gegengewicht 18 angeordnet. Es wird mittels Gegengewichtsführungsschuhen 19 entlang zweier Gegengewichts-Führungsschienen 18.1 geführt. Das Gegengewicht 18 wird von den Tragmitteln 22 getragen, die um Gegengewichtstragrollen 21 umlaufen. Das Gegengewicht 18 hängt also an dem gleichen Tragmittelpaar 22 wie die Aufzugskabine 13.Below the
Der Antrieb 10 weist eine auf eine Treibscheibenwelle 25 wirkende Antriebswelle 24 auf, die parallel zur gegengewichtsseitigen Wand 13.1 der Aufzugskabine 13 ausgerichtet ist und mindestens eine Treibscheibe 26 trägt. Der Antrieb 10 und die Treibscheibenwelle 25 mit mindestens einer Treibscheibe 12 sind auf einem Maschinenträger 23 befestigt, der sich auf den beiden Gegengewichtsführungsschienen 18.1 abstützt und mechanisch mit diesen verbunden ist. Es ist auch möglich den Antrieb 10 und die genannten Elemente auf oder an der Führungsschiene 15 zu befestigen, die links von der Aufzugskabine 13 angeordnet ist. Alternativ können Antrieb 10 und die genannten Elemente auf den Gegengewichtsführungsschienen 18.1 und den Führungsschienen 15 abgestützt sein.The drive 10 has an acting on a
Im Bereich des Antriebs 10 kann eine Bremseinheit 27 angeordnet sein, die eine Bremsung der Aufzugskabine 13 ermöglicht. Die Bremseinheit 27 ist in
Bei der in
Gemäss Erfindung verlaufen die beiden Tragmittel 22 (22.1 und 22.2) im Wesentlichen parallel zueinander. Von den gegengewichtsseitigen Tragmittelfixpunkten 28 aus verlaufen die Tragmittel 22 nach unten, umschlingen teilweise die Gegengewichtstragrollen 21, und werden weiter oben im Aufzugsschacht 11 um die Treibscheibe(n) 26 herum geführt. Von dort laufen die Tragmittel 22 entlang der linken Seitenwand 13.1 der Aufzugskabine 13 abwärts und werden dann mindestens teilweise um die Kabinentragrollen 17.1 herum geführt. Diese Art der Aufhängung bezeichnet man als Unterschlingung. Auf der rechten Seite der Aufzugskabine 13 werden die Tragmittel 22 nach oben geführt, wo jedes der Tragmittel 22 im Bereich kabinenseitiger Tragmittelfixpunkte 29 an einem Arm einer Wippvorrichtung 30 befestigt ist.According to the invention, the two support means 22 (22.1 and 22.2) are substantially parallel to each other. From the counterweight-side suspension element fixing points 28, the
Der Begriff Tragmittel ist als Synonym für jegliche Art von Seilen und Mitteln zu verstehen, die dazu geeignet sind die Aufzugskabine 13 und das Gegengewicht 18 zu tragen und zu bewegen. Vorzugsweise handelt es sich bei den Tragmitteln um Flach- oder Keilrippenriemen. Es können im Zusammenhang mit der Erfindung aber auch Stahl- oder Kunststoffseile mit rundem Querschnitt als Tragmittel eingesetzt werden.The term suspension means is to be understood as synonymous with any type of ropes and means suitable for carrying and moving the
In
Dadurch, dass die Wippvorrichtung 30 an oder auf der Führungsschiene 15 angeordnet ist, wird eine Teil der Last, die von den Tragmitteln 22.1, und 22.2 getragen wird in die Führungsschiene 15 eingeleitet. Die Führungsschiene 15 muss daher einen Gegenkraft F aufbringen, die aber mittig in der Führungsschiene 15 verläuft und keine unerwünschten Drehmomente in der x-y-Ebene oder in der y-z-Ebene erzeugt, die auf die Führungsschiene 15 wirken. Durch die idealer weise reibungsfrei ausgeführte Wippvorrichtung 30, werden Tragmittelkräfte stets gleichmässig auf die Tragmittel 22.1, und 22.2 verteilt. Eine Schrägstellung der Wippvorrichtung 30 kann dadurch entstehen, dass sich die Tragmittel 22.1, und 22.2 unterschiedlich gelängt haben, oder dadurch, dass es beim Einbau zu Unsymmetrien gekommen ist.Characterized in that the luffing
In
Seitlich neben der Wippvorrichtung 30 ist eine optionale Vorrichtung 32 gezeigt, die bei einer Wippbewegung, die über einen Grenzwert hinausgeht, die Aufzugsanlage 20 abstellt und/oder die Aufzugskabine (13) bremst und/oder ein Warnsignal auslöst. Diese Vorrichtung 32 wird hierin vereinfachend als Begrenzungsvorrichtung bezeichnet. Es kann sich zum Beispiel um einen Taster handeln, der zwei Kontakte elektrisch leitend verbindet, solange sich die Wippvorrichtung 30 in einem Winkelbereich befindet, der kleiner ±ß ist. Verlösst die Wippvorrichtung 30 den Winkelbereich ±ß nach oben oder unten - beispielsweise infolge unterschiedlicher Tragmittellöngung oder bei Bruch eines Tragmittels - so unterbricht der Taster die elektrisch leitende Verbindung. Der Taster kann zum Beispiel Bestandteil des öblicherweise bei Aufzugsanlagen vorhandenen Sicherheitskreises sein.On the side of the luffing
Anstatt eines Tasters kann auch ein beröhrungsfreier Schalter eingesetzt werden. In einer bevorzugten Ausföhrungsform wird ein Neigungssensor oder Neigungsschalter eingesetzt, der im Bereich der Wippvorrichtung 30 so angeordnet ist, dass beim Auftreten einer zu grossen Auslenkung der Wippvorrichtung 30 eine Reaktion ausgelöst wird.Instead of a button, a non-contact switch can also be used. In a preferred embodiment, an inclination sensor or inclination switch is used, which is arranged in the region of the
In
Die Verbindung der Tragmittel mit den Armen der Wippvorrichtung ist gemäss Erfindung so ausgeführt, dass sie zumindest kleine Drehbewegungen zulässt. Dies ist notwendig, da die Tragmittel jeweils vertikal nach unten gerichtet sind, die Wippvorrichtung jedoch der unterschiedlichen Tragmittellängung entsprechende Wippbewegungen ausführen kann. Wie in
The connection of the support means with the arms of the rocking device is designed according to the invention so that it allows at least small rotational movements. This is necessary because the support means are each directed vertically downwards, but the luffing device of the different support medium elongation can perform appropriate rocking movements. As in
In
Solche Geschwindigkeitsbegrenzer 43 werden zur Begrenzung der Geschwindigkeit von Aufzugskabinen eingesetzt. Hierbei wird als Hilfsseil ein geschlossenes Seil 44, nämlich ein so genanntes Geschwindigkeitsbegrenzerseil verwendet. Dieses Geschwindigkeitsbegrenzerseil 44 läuft um eine Seilrolle 45 des oben in dem Aufzugsschacht angebrachten Geschwindigkeitsbegrenzers 43 und um eine unten im Aufzugsschacht angebrachte Spannrolle (nicht in
Analog dem beschriebenen Ablauf in Falle zu hoher Geschwindigkeiten kann die Fangvorrichtung ausgelöst werden, wenn die Auslenkung der Arme der Wippvorrichtung 40 durch grosse Längenunterschiede der Tragmittel 42.1, 42.2 oder infolge eines Tragmittelbruchs eine bestimmte Limite überschreitet. Der Arm 41 der Wippvorrichtung 40 betätigt dabei entweder direkt oder über einen Umlenkhebel 50 das Blockierpendel 47 und bewirkt dadurch die oben beschriebene Blockierung des Geschwindigkeitsbegrenzers 43 und die Auslösung der Fangbremse.
Wie in
As in
Die Begrenzungsvorrichtung 32 (
Bei einer weiteren Ausführungsform ist die Wippvorrichtung 30 so gelagert, dass ihre Wippbewegungen leicht gedämpft sind. Damit können kurze Belastungsschwankungen, z.B. durch Schwingungen der Aufzugskabine 13, gedämpft werden. Zusätzlich oder alternativ können Mittel vorgesehen sein, die als
Anschlag für die Wippvorrichtung 30; 40 dienen. In
Stop for the luffing
Ausführungsformen mit 4, 6 oder mehr Tragmitteln 52.1 - 52.4 können so ausgelegt sein, dass jeweils zwei der Tragmittel 52.1, 52.2 und 52.3, 52.4 paarweise an einer Wippvorrichtung 55.1 und 55.2 befestigt sind. Zwei solche Wippvorrichtungen 55.1 und 55.2 sind dann wiederum zusammen an einer übergeordneten Wippvorrichtung 55.3 aufgehängt, wie schematisch in
Eine andere Ausführungsform zeichnet sich dadurch aus, dass die Tragmittel auch auf der Gegengewichtsseite an der dortigen Führungsschiene befestigt sind.Another embodiment is characterized in that the support means are also mounted on the counterweight side of the local guide rail.
Claims (13)
- Lift installation (20) comprising- a lift cage (13),- a guide rail (15; 48; 51), which is present on a first side of the lift cage, for vertical guidance of the lift cage (13) and- several support means (22; 42.1, 42.2; 52.1 to 52.4), which extend parallel to one another and support a counterweight (18) installed on the first side of the lift cage (13) or the side opposite to the first side and which underloop the lift cage (13), wherein each of the support means (22; 42.1, 42.2; 52.1 to 52.4) is fastened by one end on the first side and by the other end on the opposite side of the lift cage at support means fixing points (28, 29) respectively present there,
characterised in that a rocker device (30; 40) with two arms (30.1, 30.2) is fastened to the guide rail (15; 48; 51) which is so constructed that a rocking movement of the arms (30.1, 30.2) is possible, wherein a support means fixing point (29) associated with the first side of the lift cage is provided at each of the two arms (30.1, 30.2) and the rocker device (30; 40) by the rocking movement prevents unequal loading of the two support means (22; 42.1, 42.2; 52.1 to 52.4). - Lift installation (20) according to claim 1, characterised in that a second guide rail (15) for vertical guidance of the lift cage (13) is present, which preferably supports a drive (10) laterally arranged above the lift cage (13).
- Lift installation (20) according to claim 2, characterised in that the support means (22.1, 22.2; 42.1, 42.2; 52.1 to 52.4) are designed to be substantially symmetrical with respect to a plane extending between the first and second guide rail (15; 48; 51).
- Lift installation (20) according to claim 2, characterised in that flat belts or wedge-rib belts serve as support means (22; 42.1, 42.2; 52.1 to 52.4), wherein the support means support the lift cage (13) in the form of a 2:1 underlooping.
- Lift installation (20) according to claim 2, characterised in that an even-numbered total number of support means (22; 42.1, 42.2; 52.1 to 52.4) is used, wherein half the total number of support means (22; 42.1, 42.2; 52.1 to 52.4) is arranged on one side and the other half of the total number of support means (22; 42.1, 42.2; 52.1 to 52.4) is arranged on the other side of the first and second guide rail (15; 48; 51).
- Lift installation (20) according to claim 1, characterised in that the counterweight (18) is laterally guided at the lift cage (13) by two counterweight guide rails (18.1).
- Lift installation (20) according to claim 1, characterised in that an abutment (36) is provided in order to mechanically limit the rocking movement.
- Lift installation (20) according to one of claims 2, 3 and 4, characterised in that the rocker device (30; 40) is supported in such a manner on or at an upper end of the first guide rail (15; 48; 51) that vertically downwardly directed tension forces (F1, F2) acting by way of the support means (22.1, 22.2) on the rocker device (30; 40) are introduced into the first guide rail (15; 48; 51) in the region of the centre (P) of area of the cross-section thereof.
- Lift installation (20) according to one of claims 2 to 6, characterised in that the rocker device (30; 40) is connected with a limiting device (32; 41) which shuts down the drive (10) of the lift installation (20) and/or brakes the lift cage (13) and/or triggers a warning signal in the case of a rocking movement going beyond a limit value.
- Lift installation (20) according to claim 9, characterised in that the limiting device (41) mechanically or electrically interacts with a speed limiter (43) of the lift installation (20) in order to brake the lift cage (13) by way of a safety braking device (44, 46).
- Rocker device (30; 40) which is designed for the purpose of being used in a lift installation (20) comprising- a lift cage (13),- at least one first guide rail (15; 48; 51), which is arranged on a first side of the lift cage, for vertical guidance of the lift cage (13) and- several support means (22; 42.1, 42.2; 52.1 to 52.4), which extend parallel to one another and support a counterweight (18) installed on the first side of the lift cage (13) and which underloop the lift cage (13), wherein each of the support means (22; 42.1, 42.2; 52.1 to 52.4) is fastened by one end on the first side and by the other end on the opposite side of the lift cage at support means fixing points (28, 29) respectively present there,
characterised in that the rocker device is provided for mounting at or on the guide rail (15; 48; 51) and has two arms (30.1, 30.2) having fastening means (22.3, 22.4, 30.7, 30.8, 31.1, 31.2, 31.3, 31.4) for movable fastening of a support means (22.1, 22.2), which receive and fix the end of the support means (22.1, 22.2), and wherein the fastening means (22.3, 22.4, 30.7, 30.8, 31.1, 31.2, 31.3, 31.4) are arranged symmetrically with respect to an axis (30.3) of rotation. - Rocker device (30; 40) according to claim 11, characterised in that it comprises a limiting device (41) which can be mechanically or electrically coupled with a speed limiter (43) in order to shut down a drive (10) of the lift installation (20) and/or brake the lift cage (13) in case the rocker device (40) makes a rocking movement going beyond a limit value.
- Rocker device (30; 40) according to claim 11, characterised in that the fastening means comprise clamping or screw devices (22.3, 22.4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04017606.7A EP1508545B1 (en) | 2003-08-12 | 2004-07-26 | Elevator system with load-related cable hitch |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405591 | 2003-08-12 | ||
EP03405591A EP1510493A1 (en) | 2003-08-12 | 2003-08-12 | Elevator system with load-related cable hitch |
EP04017606.7A EP1508545B1 (en) | 2003-08-12 | 2004-07-26 | Elevator system with load-related cable hitch |
Publications (2)
Publication Number | Publication Date |
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EP1508545A1 EP1508545A1 (en) | 2005-02-23 |
EP1508545B1 true EP1508545B1 (en) | 2015-12-23 |
Family
ID=34066524
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Application Number | Title | Priority Date | Filing Date |
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EP04017606.7A Expired - Lifetime EP1508545B1 (en) | 2003-08-12 | 2004-07-26 | Elevator system with load-related cable hitch |
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EP (1) | EP1508545B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3124423A1 (en) | 2015-07-28 | 2017-02-01 | Inventio AG | Load bearing element suspension device with two-stage rocking device with long lower holding arms for a lift system |
EP3124424A1 (en) | 2015-07-28 | 2017-02-01 | Inventio AG | Load bearing element suspension device with rocking device comprising deflector rollers for a lift system |
EP3124421A1 (en) | 2015-07-28 | 2017-02-01 | Inventio AG | Load bearing element suspension device with asymmetrical rocking device for a lift system |
EP3124422A1 (en) | 2015-07-28 | 2017-02-01 | Inventio AG | Lift system with uneven load distribution across multiple load-bearing devices fixed to a load-bearing device suspension system |
EP4349760A1 (en) * | 2022-10-05 | 2024-04-10 | TK Elevator Innovation and Operations GmbH | Balancing device for suspension means |
CN116969369B (en) * | 2023-09-22 | 2024-01-09 | 沈阳蓝光驱动技术有限公司 | Elevator hauler arresting gear |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000086114A (en) * | 1998-09-14 | 2000-03-28 | Toshiba Corp | Elevator |
JP2001247277A (en) * | 2000-02-09 | 2001-09-11 | Otis Elevator Co | Dead end hitch |
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2004
- 2004-07-26 EP EP04017606.7A patent/EP1508545B1/en not_active Expired - Lifetime
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