EP2135832A1 - Elevator brake and elevator assembly with an elevator brake - Google Patents
Elevator brake and elevator assembly with an elevator brake Download PDFInfo
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- EP2135832A1 EP2135832A1 EP08158614A EP08158614A EP2135832A1 EP 2135832 A1 EP2135832 A1 EP 2135832A1 EP 08158614 A EP08158614 A EP 08158614A EP 08158614 A EP08158614 A EP 08158614A EP 2135832 A1 EP2135832 A1 EP 2135832A1
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- European Patent Office
- Prior art keywords
- elevator
- elevator brake
- brake
- friction lining
- rail
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- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Definitions
- the present invention relates to an elevator brake, preferably an electromechanically actuated elevator brake, with an actuating unit which presses by means of an actuating element a first friction lining against an elevator rail, or a brake disc of an elevator drive, while a second friction lining by the action of a in the actuation of the arrangement of the elevator brake applied reaction force is pressed against the opposite side surface of the elevator rail.
- the invention further relates to an elevator installation with such an elevator brake.
- electromechanically actuatable brake actuators in particular in the case of electromechanically actuatable brake actuators, it may, in particular in the holding brake position, e.g. In case of power failure or even a mechanical blockade ("jamming") come to a permanent holding brakes of an elevator car when the holding brake position controlled can not be solved again. To avoid such a case, a mechanical release device is desirable, which in case of emergency, even without energization - purely manually or mechanically - is actuated.
- Such elevator brakes are installed in an elevator system or a travel bridge.
- a corresponding elevator installation includes at least one elevator car and one elevator drive.
- the elevator brake is used to brake and hold the elevator car.
- An elevator brake for use in an elevator system is, for example, from EP1671912 known.
- This known brake has an electromechanical actuating element, and a locking device for realizing a holding brake function, wherein a quick-release device is provided for releasing the locking device from its actuated position.
- the locking device can be unlocked using a power source again. This requires that a release of enclosed elevator passengers take a long time, since at most appropriate note energy sources must be provided.
- the release device on at least one operable wedge-shaped element which cooperates with a second friction lining associated element so that actuation of the wedge-shaped element brings the second friction lining out of engagement with the elevator rail and thus a relaxation of Elevator brake causes.
- a further advantageous embodiment provides that the element associated with the second friction lining is likewise wedge-shaped and has a nose which cooperates with a guide groove in the wedge-shaped element.
- the release device is formed by a rotatable threaded bolt which is screwed into a thread arranged in Faustsattel, wherein pivoting of the threaded bolt the second Friction pad disengages the elevator rail and causes a relaxation of the elevator brake.
- a lever is attached to the threaded bolt, which can be remotely operated by a cable from the elevator maintenance personnel or from appropriately instructed persons.
- the release or emergency release device is formed by an inclined plane, a ramp, a bayonet or an eccentric, which brings when actuated the second friction lining out of engagement with the elevator rail and thus causes a relaxation of the elevator brake.
- the release device is designed in any case such that upon actuation a release travel (.DELTA.s) is provided, which corresponds to at least the elastic deformation of the caliper and the load-bearing elements.
- a release travel (.DELTA.s) is provided, which corresponds to at least the elastic deformation of the caliper and the load-bearing elements.
- the operation of the release device can be detected by means of a sensor.
- the actuating element is preferably an electromechanical actuation, for example using an electric motor, which provides a required pressing force of the friction lining on an elevator rail, or on a brake disk of the elevator drive.
- the elevator system is usually installed in a shaft, the shaft may be limited in total or in part by enclosures or it may be open.
- the shaft describes the driving space required by the elevator system including required safety distances.
- an exemplary elevator installation according to the invention furthermore requires support means and a counterweight, wherein the elevator drive drives, for example, the suspension means via a traction wheel and thus moves the elevator cage and the counterweight in opposite directions.
- rope-like, non-jacketed suspension elements wire ropes, synthetic fiber ropes etc
- chain-like suspension elements are used as suspension elements for elevator systems and in particular also belt-like and / or sheathed suspension means in question.
- the elevator drive can of course, alternatively or additionally, be assembled with the elevator car or incorporated in the counterweight.
- elevator systems known in which the counterweight is eliminated. In such an arrangement, for example, the elevator drive can directly raise and lower the cabin.
- This elevator system requires at least one elevator brake.
- the elevator brake holds a stationary elevator car - for example, during the loading time in a floor - or it brakes the elevator car in an emergency - for example, an unexpected opening of a floor access - from, or it catches too fast elevator car - for example, in a failure of the suspension elements - on.
- the elevator brake can be arranged at different locations in this elevator installation.
- the elevator brake is preferably arranged directly on the elevator car and engages there in an elevator rail.
- the elevator brake can also be arranged in the elevator drive, where it cooperates there, for example, with the traction wheel or with a brake disk mounted on the traction wheel.
- Other arrangements such as an arrangement on the counterweight, in cooperation with a counterweight lift rail or an arrangement in the shaft in cooperation with the support means as a brake partner are possible.
- the elevator brake always works as described with a brake partner. In the present description, the operation and advantages of the example of the interaction with the elevator rail are shown. Always the other brake partners are included.
- the task of braking and holding the elevator car can be perceived solely by an elevator brake.
- the elevator brake can also take on only one of the functions, for example holding on the floor, while other functions, such as catching the elevator car in the event of failure of suspension elements, are taken over by a separate safety gear.
- a drive bridge includes drive plates or drive steps which are driven by a drive via a conveyor. Also this drive can be equipped with the brake according to the invention.
- electromechanically actuated elevator brake is a so-called floating caliper brake
- the brake caliper shown in section is slidably mounted in a stationary holder, not shown.
- a pair of friction linings 4 and 5 are disposed in the caliper so as to face the left and right side surfaces of an elevator rail 6.
- the actuator which is mounted by means not shown fastening means on the caliper, has a modular construction and consists essentially of four independent assemblies or modules, namely from a drive unit 1, a first friction lining 4 actuated first reduction gear 2, which simultaneously converts a rotation into a translational movement, an operatively connected between the drive unit 1 and the first reduction gear 2 second reduction gear 3 and an electronic control unit 8.
- the previously mentioned drive unit 1 consists of an electric motor, which is formed in the example shown as a permanent magnet excited, electronically commutated motor, the stator 9 is immovably disposed in a motor housing 12 and the rotor 10 is connected to a shaft 13 which is connected to the second reduction gear 3 is operatively connected.
- the first reduction gear 2 is formed in the example shown as a ball screw, which is arranged in a gear housing 14, which may also be made in one piece with the aforementioned caliper.
- the ball screw consists of a threaded nut 16 and a threaded spindle 17, wherein between the threaded nut 16 and the threaded spindle 17 a plurality of unspecified balls are arranged, which rotate during a rotational movement of the threaded spindle 17 and the threaded nut 16 in an axial or translational movement offset.
- the threaded nut 16 is preferably made in two parts and consists of a first part 18 which forms the previously mentioned actuator 7, and a second part 19, in which a return region is formed for the balls, in which the balls without load at the beginning of can run back into a supporting career.
- the second reduction gear 3 is formed as a planetary gear.
- the arrangement is preferably made such that the rotor 10 or the shaft 13 of the electric motor with the interposition of the second reduction gear 3, the threaded spindle 17 drives, while the first part 18 of the threaded nut 16 is supported on the first friction lining 4.
- the coupling of the first reduction gear 2 to the second reduction gear 3 by means of a transverse force-free plug-in connection, which carries the reference numeral 20 and which can be carried out, for example, as a serration.
- the bearing of the rotor 10 serve two radial bearings 21, 22, which are arranged in the motor housing 12.
- the electronic control unit 8 a preferably made of plastic housing 23 which is provided with a flange which receives all electrical interfaces between the electric motor and the electronic control unit 8 and mechanical interfaces between the electric motor and the second reduction gear 3.
- the flange is advantageously arranged between the electric motor and a housing 25 accommodating the second reduction gear 3.
- a non-illustrated position detection system is used to determine the current position of the rotor 10th
- electromechanically actuated brake actuators it may, in particular in an in Fig. 1 Not shown holding brake position, for example in case of power failure or a mechanical blockade - ie a "jamming" - come to a permanent holding brakes of an elevator car or the wheel of a motor vehicle concerned when the holding brake position can not be controlled again solved.
- a mechanical emergency release device 24 is provided, which is also without energization - purely manually or mechanically - actuated and below with reference to Fig. 2 to 4 is explained in more detail.
- FIG. 2 an emergency release device 24 is shown, in which the back plate of the second friction lining 5 with two wedge-shaped elements 25, 26 is underlaid.
- the emergency release device 24 consists essentially of an actuatable wedge-shaped Element 25, which cooperates with a second friction lining 5 associated element 26.
- the wedge-shaped element 25 is mechanically, z. B. by a Bowden cable or a linkage - possibly with the interposition of a mechanical translation (gear) - pulled out of position, so that the floating caliper is relaxed and the stalled elevator car is released again.
- the second friction lining 5 associated element 26 has a nose 27 which cooperates with a guide groove 28 in the wedge-shaped element 25.
- FIG. 3 and Fig. 4 An alternative embodiment is in Fig. 3 and Fig. 4 shown.
- the emergency release device 24 is arranged on the side of the elevator rail (6) opposite the actuating unit and acts on the second friction lining 5.
- the second, fist-side friction lining 5 is on a rotatable threaded bolt 29 which is screwed into a arranged in Faustsattel, self-locking thread 30 - or an inclined plane or a (ball) ramp, a bayonet or an eccentric - so supported that between the Back plate of the second friction lining 5 and the Faustsattel a distance ⁇ s is present.
- This distance .DELTA.s corresponds at least to the elastic deformation of the caliper and the load application elements under load (eg ball screw, piston, etc.) including the compression of the friction linings 4, 5 during the braking process and optionally the clearance. If the brake is closed and can no longer be opened by the actuator side, the brake can be opened or emergency unlocked by rotating the threaded bolt 29 in the "opening direction" by an angle ⁇ . Thus, the distance ⁇ s is reduced until the caliper is relaxed and the brake is open. A rotation by ⁇ thus results in a path of ⁇ s.
- a lever 31 On the threaded bolt 29, for example, outside a lever 31 may be attached, which can be operated via a cable or Bowden cable 32 or a linkage from a remote position, if a direct accessibility to the brake is not given.
- the lever 31 is pivoted in Notentriegelungsfall from its normal position "brakes” in the position "emergency unlocked".
- an additional translation provided between threaded bolt 29 and lever 31.
- a monitoring of the position of the threaded bolt 29 and the lever 31 can be performed by means of an electronic sensor.
- Fig. 5 is a possible integration of an elevator brake, with all its previously presented variations and alternative solutions, shown in an elevator system.
- the elevator installation 40 includes a cabin 42 or a corresponding transport platform.
- the elevator car 42 is arranged to be movable in a shaft 44.
- a travel path of the elevator car 42 is determined by substantially vertically oriented elevator rails 6.
- the elevator car 42 shown is suspended on suspension means 46.
- an elevator drive 43 By means of an elevator drive 43, a driving force can be transmitted to the elevator car 42 via the suspension element 46.
- the drive 43 is controlled or controlled by an elevator control 51, and the elevator car can thus be moved according to the control specifications of the elevator control 51.
- the elevator installation 40 thus makes it possible to transport persons or goods over a plurality of floors 49 lying one above another, by allowing the elevator cabin 42 to be moved and stopped along these floors 49.
- the shaft 44 is bounded by braces 45.
- These barriers 45 may be building walls, steel scaffolding, glass surfaces or other materials known as building materials.
- the barrier 45 can also be open, as is often done, for example, in a so-called panoramic elevator.
- the defense can of course also consist of combinations.
- a wall can be solid brick walls and other walls may consist of glass parts.
- the illustrated elevator installation 40 further includes a counterweight 47 which at least partially compensates for the weight of the elevator car 42. It hangs at the opposite end of the support means 46.
- the counterweight 47 in turn can be moved along counterweight lift rails 6, wherein it necessarily moves counter to the elevator car 42.
- the elevator brake 41 is attached to the elevator car 42.
- the elevator car is usually guided by means of two elevator rails 6, which are arranged on both sides of the elevator car 42.
- the elevator brake 41 is preferably also divided into two units which each engage one of the elevator rails 6.
- the elevator brake 41 used in addition to a safety gear 50.
- the elevator brake 41 is dimensioned to the car 42 from all their usual operating conditions, but with intact support means 46 and counterweight 47, decelerate and hold.
- the safety gear 50 engages only in case of failure of the support means 46 a. It is accordingly simple and dimensioned only for a few brakes.
- the safety gear 50 can be dispensed with, or the elevator brake 41 can, while maintaining the safety gear 50 on the car 42, be arranged on the counterweight 47.
- it can also be arranged on the elevator drive 43, where it engages, for example, on a drive brake disc connected directly to a traction wheel 48, or it can engage the support means and decelerate or hold it.
- the elevator brake according to the invention thus has two release options.
- a first release device is used in normal operation and is usually integrated in the normal operating device.
- the first friction lining 4 is thereby pressed with the actuating element 7, usually electromechanically, to the elevator rail and it is also released or relieved with the actuating element 7.
- the elevator brake now has a second release device 24, as explained in the preceding examples.
- This second release device 24 is preferably mechanical, manually operable, executed, and allows release of the locked elevator brake in an emergency.
- the elevator brake shown can also be mounted as a brake on a drive of a conveyor web or an escalator.
- the actuating element may also include a hydraulic, a pneumatic, a purely mechanical or possibly also a pyrotechnic actuator.
Abstract
Description
Die vorliegende Erfindung betrifft eine Aufzugbremse, vorzugsweise eine elektromechanisch betätigbare Aufzugbremse, mit einer Betätigungseinheit, die mittels eines Betätigungselements einen ersten Reibbelag gegen eine Aufzugsschiene, bzw. eine Bremsscheibe eines Aufzugsantriebes drückt, während ein zweiter Reibbelag durch die Wirkung einer bei der Betätigung der Anordnung von der Aufzugbremse aufgebrachten Reaktionskraft gegen die gegenüberliegende Seitenfläche der Aufzugsschiene gedrückt wird. Die Erfindung betrifft weiter eine Aufzugsanlage mit einer derartigen Aufzugbremse.The present invention relates to an elevator brake, preferably an electromechanically actuated elevator brake, with an actuating unit which presses by means of an actuating element a first friction lining against an elevator rail, or a brake disc of an elevator drive, while a second friction lining by the action of a in the actuation of the arrangement of the elevator brake applied reaction force is pressed against the opposite side surface of the elevator rail. The invention further relates to an elevator installation with such an elevator brake.
Bei elektromechanisch betätigbaren Bremsen-Aktuatoren, im besonderen bei elektromechanisch betätigbaren Bremsen-Aktuatoren, kann es, insbesondere in der Haltebremsstellung, z.B. bei Stromausfall oder auch einer mechanischen Blockade ("Verklemmen") zu einem dauerhaften Haltebremsen einer Aufzugskabine kommen, wenn sich die Haltebremsstellung geregelt nicht wieder lösen lässt. Zur Vermeidung eines solchen Falles ist eine mechanische Löseeinrichtung wünschenswert, die im Notfalle, auch ohne Bestromung - rein manuell bzw. mechanisch - betätigbar ist.In the case of electromechanically actuatable brake actuators, in particular in the case of electromechanically actuatable brake actuators, it may, in particular in the holding brake position, e.g. In case of power failure or even a mechanical blockade ("jamming") come to a permanent holding brakes of an elevator car when the holding brake position controlled can not be solved again. To avoid such a case, a mechanical release device is desirable, which in case of emergency, even without energization - purely manually or mechanically - is actuated.
Derartige Aufzugbremsen sind in einer Aufzugsanlage oder einem Fahrsteg eingebaut. Eine entsprechende Aufzugsanlage beinhaltet zumindest eine Aufzugkabine und einen Aufzugantrieb. Die Aufzugbremse wird zum Bremsen und Halten der Aufzugkabine verwendet.Such elevator brakes are installed in an elevator system or a travel bridge. A corresponding elevator installation includes at least one elevator car and one elevator drive. The elevator brake is used to brake and hold the elevator car.
Eine Aufzugbremse zum Einsatz in einer Aufzugsanlage ist beispielsweise aus der
Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Aufzugbremse und eine entsprechende Aufzugsanlage der eingangs genannten Gattung dahingehend weiter zu entwickeln, dass eine Entriegelung der Aufzugbremse mittels einfacher mechanischer Elemente ermöglicht wird.It is therefore an object of the present invention to further develop an elevator brake and a corresponding elevator installation of the type mentioned at the outset such that an unlocking of the elevator brake by means of simple mechanical elements is made possible.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 und eine Aufzugsanlage mit den Merkmalen des Anspruchs 10 gelöst. Dabei ist an der Aufzugbremse eine zusätzliche Löse-, bzw. Notlösevorrichtung vorgesehen, die auf der der Betätigungseinheit gegenüberliegenden Seite der Aufzugsschiene angeordnet ist und auf den zweiten Reibbelag wirkt.This object is achieved by a device having the features of
Weitere vorteilhafte Ausgestaltungen sind, betreffend der Aufzugbremse, den abhängigen Unteransprüchen 2 bis 9 und, betreffend der Aufzugsanlage, den abhängigen Unteransprüchen 11 und 12 entnehmbar.Further advantageous embodiments are, with regard to the elevator brake, the
So weist in einer besonders vorteilhaften Weiterbildung der erfindungsgemäßen Aufzugbremse die Lösevorrichtung mindestens ein betätigbares keilförmiges Element auf, das mit einem dem zweiten Reibbelag zugeordneten Element so zusammenwirkt, dass eine Betätigung des keilförmigen Elements den zweiten Reibbelag außer Eingriff mit der Aufzugsschiene bringt und damit eine Entspannung der Aufzugbremse bewirkt.Thus, in a particularly advantageous embodiment of the elevator brake according to the invention, the release device on at least one operable wedge-shaped element which cooperates with a second friction lining associated element so that actuation of the wedge-shaped element brings the second friction lining out of engagement with the elevator rail and thus a relaxation of Elevator brake causes.
Eine weitere vorteilhafte Weiterbildung sieht vor, dass das dem zweiten Reibbelag zugeordnete Element ebenfalls keilförmig ausgebildet ist und eine Nase aufweist, die mit einer Führungsnut im keilförmigen Element zusammenwirkt.A further advantageous embodiment provides that the element associated with the second friction lining is likewise wedge-shaped and has a nose which cooperates with a guide groove in the wedge-shaped element.
Bei einer alternativen Ausführungsform wird die Lösevorrichtung durch einen drehbaren Gewindebolzen gebildet, der in ein im Faustsattel angeordnetes Gewinde geschraubt ist, wobei ein Verschwenken des Gewindebolzens den zweiten Reibbelag außer Eingriff mit der Aufzugsschiene bringt und eine Entspannung der Aufzugbremse bewirkt.In an alternative embodiment, the release device is formed by a rotatable threaded bolt which is screwed into a thread arranged in Faustsattel, wherein pivoting of the threaded bolt the second Friction pad disengages the elevator rail and causes a relaxation of the elevator brake.
Vorteilhaft ist am Gewindebolzen ein Hebel angebracht, der mittels eines Seilzugs vom Aufzugswartungspersonal oder von entsprechend instruierten Personen fernbetätigbar ist.Advantageously, a lever is attached to the threaded bolt, which can be remotely operated by a cable from the elevator maintenance personnel or from appropriately instructed persons.
Weitere alternative Ausführungsformen sehen vor, dass die Löse- bzw. Notlösevorrichtung durch eine schiefe Ebene, eine Rampe, ein Bajonett oder einen Exzenter gebildet wird, die bei Betätigung den zweiten Reibbelag außer Eingriff mit der Aufzugsschiene bringt und damit eine Entspannung der Aufzugbremse bewirkt.Further alternative embodiments provide that the release or emergency release device is formed by an inclined plane, a ramp, a bayonet or an eccentric, which brings when actuated the second friction lining out of engagement with the elevator rail and thus causes a relaxation of the elevator brake.
Die Lösevorrichtung ist in jedem Fall derart ausgebildet, dass bei Betätigung ein Löseweg (Δs) zur Verfügung gestellt wird, der mindestens der elastischen Deformation des Faustsattels und der unter Last stehenden Elemente entspricht.The release device is designed in any case such that upon actuation a release travel (.DELTA.s) is provided, which corresponds to at least the elastic deformation of the caliper and the load-bearing elements.
Die Betätigung der Lösevorrichtung kann mit Hilfe eines Sensors erfasst werden.The operation of the release device can be detected by means of a sensor.
Das Betätigungselement ist vorzugsweise eine elektromechanische Betätigung, beispielsweise unter Verwendung eines Elektromotors, welcher eine erforderliche Andrückkraft des Reibbelages an eine Aufzugsschiene, bzw. an eine Bremsscheibe des Aufzugantriebes bereitstellt.The actuating element is preferably an electromechanical actuation, for example using an electric motor, which provides a required pressing force of the friction lining on an elevator rail, or on a brake disk of the elevator drive.
Die Aufzugsanlage ist in der Regel in einem Schacht eingebaut, wobei der Schacht gesamthaft oder teilweise durch Umwehrungen begrenzt sein kann oder er kann offen sein. Der Schacht beschreibt den durch die Aufzugsanlage beanspruchten Fahrraum inklusive erforderlicher Sicherheitsdistanzen. Weiter benötigt eine beispielhafte erfindungsgemäße Aufzugsanlage im weiteren Tragmittel und ein Gegengewicht wobei der Aufzugantrieb beispielsweise die Tragmittel über ein Traktionsrad treibt und damit die Aufzugkabine und das Gegengewicht gegengleich bewegt. Als Tragmittel für Aufzugsanlagen kommen derzeit seilartige, nicht ummantelte Tragmittel (Drahtseile, Synthetikfaserseile etc), kettenartige Tragmittel und insbesondere auch riemenartige und/oder ummantelte Tragmittel in Frage.The elevator system is usually installed in a shaft, the shaft may be limited in total or in part by enclosures or it may be open. The shaft describes the driving space required by the elevator system including required safety distances. Furthermore, an exemplary elevator installation according to the invention furthermore requires support means and a counterweight, wherein the elevator drive drives, for example, the suspension means via a traction wheel and thus moves the elevator cage and the counterweight in opposite directions. Currently, rope-like, non-jacketed suspension elements (wire ropes, synthetic fiber ropes etc), chain-like suspension elements are used as suspension elements for elevator systems and in particular also belt-like and / or sheathed suspension means in question.
Der Aufzugantrieb kann selbstverständlich, alternativ oder ergänzend, mit der Aufzugkabine zusammengebaut oder im Gegengewicht eingebaut sein. Es sind auch Aufzugsanlagen bekannt bei denen das Gegengewicht entfällt. In einer derartigen Anordnung kann beispielsweise der Aufzugantrieb die Kabine direkt heben und senken. Diese Aufzugsanlage benötigt mindestens eine Aufzugbremse. Die Aufzugbremse hält eine stillstehende Aufzugkabine - beispielsweise während der Beladungszeit in einer Etage - fest, oder sie bremst die Aufzugkabine in einer Notsituation - beispielsweise bei einer unerwarteten Öffnung eines Etagenzuganges - ab, oder sie fängt eine zu schnelle Aufzugkabine - beispielsweise bei einem Versagen der Tragmittel - auf. Die Aufzugbremse kann an verschiedenen Orten in dieser Aufzugsanlage angeordnet sein.The elevator drive can of course, alternatively or additionally, be assembled with the elevator car or incorporated in the counterweight. There are also elevator systems known in which the counterweight is eliminated. In such an arrangement, for example, the elevator drive can directly raise and lower the cabin. This elevator system requires at least one elevator brake. The elevator brake holds a stationary elevator car - for example, during the loading time in a floor - or it brakes the elevator car in an emergency - for example, an unexpected opening of a floor access - from, or it catches too fast elevator car - for example, in a failure of the suspension elements - on. The elevator brake can be arranged at different locations in this elevator installation.
Vorzugsweise ist die Aufzugbremse direkt auf der Aufzugkabine angeordnet und sie greift dort in eine Aufzugsschiene ein. Alternativ kann die Aufzugbremse auch beim Aufzugantrieb angeordnet sein, wobei sie dort beispielsweise mit dem Traktionsrad, bzw. einer am Traktionsrad angebrachten Bremsscheibe zusammenarbeitet. Andere Anordnungen, wie eine Anordnung auf dem Gegengewicht, in Zusammenwirkung mit einer Gegengewichts-Aufzugsschiene oder eine Anordnung im Schacht in Zusammenwirkung mit dem Tragmittel als Bremspartner sind möglich. Stets arbeitet die Aufzugbremse, wie beschrieben, mit einem Bremspartner zusammen. In der vorliegenden Beschreibung sind die Funktionsweise und Vorteile am Beispiel des Zusammenwirkens mit der Aufzugsschiene dargestellt. Stets sind dabei die übrigen Bremspartner mitbeinhaltet.The elevator brake is preferably arranged directly on the elevator car and engages there in an elevator rail. Alternatively, the elevator brake can also be arranged in the elevator drive, where it cooperates there, for example, with the traction wheel or with a brake disk mounted on the traction wheel. Other arrangements, such as an arrangement on the counterweight, in cooperation with a counterweight lift rail or an arrangement in the shaft in cooperation with the support means as a brake partner are possible. The elevator brake always works as described with a brake partner. In the present description, the operation and advantages of the example of the interaction with the elevator rail are shown. Always the other brake partners are included.
Selbstverständlich kann die Aufgabe des Bremsens und Haltens der Aufzugkabine alleine durch eine Aufzugbremse wahrgenommen werden. Die Aufzugbremse kann aber auch nur eine der Funktionen, beispielsweise ein Halten auf der Etage übernehmen, während andere Funktionen, wie beispielsweise ein Fangen der Aufzugkabine bei einem Versagen von Tragmitteln von einer separaten Fangvorrichtung übernommen werden.Of course, the task of braking and holding the elevator car can be perceived solely by an elevator brake. However, the elevator brake can also take on only one of the functions, for example holding on the floor, while other functions, such as catching the elevator car in the event of failure of suspension elements, are taken over by a separate safety gear.
Ein Fahrsteg beinhaltet Fahrplatten oder Fahrstufen welche über ein Fördermittel von einem Antrieb getrieben werden. Auch dieser Antrieb kann mit der erfindungsgemäßen Bremse bestückt werden.A drive bridge includes drive plates or drive steps which are driven by a drive via a conveyor. Also this drive can be equipped with the brake according to the invention.
Die Erfindung wird nachfolgend anhand zweier Ausführungsbeispiele im Zusammenhang mit der beiliegenden Zeichnung näher erläutert. In der Zeichnung zeigen:
- Fig. 1
- eine elektromechanisch betätigbare Aufzugbremse im Axialschnitt,
- Fig. 2
- eine Explosionsdarstellung einer ersten Ausführung der erfindungsgemäßen Notlösevorrichtung;
- Fig. 3
- eine Prinzipdarstellung einer zweiten Ausführung der erfindungsgemäßen Notlösevorrichtung;
- Fig. 4
- mehrere Ansichten der in
Fig. 3 dargestellten Ausführung der erfindungsgemäßen Notlösevorrichtung und - Fig. 5
- eine beispielhafte Aufzugsanlage mit Aufzugbremse.
- Fig. 1
- an electromechanically actuated elevator brake in axial section,
- Fig. 2
- an exploded view of a first embodiment of the emergency release device according to the invention;
- Fig. 3
- a schematic diagram of a second embodiment of the emergency release device according to the invention;
- Fig. 4
- several views of in
Fig. 3 illustrated embodiment of the emergency release device according to the invention and - Fig. 5
- an exemplary elevator system with elevator brake.
Die in
Nachstehend werden der in der Zeichnung rechts gezeigte Reibbelag 4 als erster Reibbelag und der andere, mit 5 bezeichnete Reibbelag als zweiter Reibbelag bezeichnet. Während der erste Reibbelag 4 mittels eines Betätigungselements 7 durch die Betätigungseinheit direkt mit der Aufzugsschiene 6 in Eingriff bringbar ist, wird der zweite Reibbelag 5 durch die Wirkung einer bei der Betätigung der Anordnung vom Bremssattel aufgebrachten Reaktionskraft gegen die gegenüberliegende Seitenfläche der Aufzugsschiene 6 gedrückt.Hereinafter, the friction lining 4 shown on the right in the drawing as the first friction lining and the other, designated 5 friction lining referred to as the second friction lining. While the first friction lining 4 can be brought into engagement with the
Die Betätigungseinheit, die mittels nicht gezeigter Befestigungsmittel am Bremssattel angebracht ist, weist einen modularen Aufbau auf und besteht im wesentlichen aus vier
selbstständigen Baugruppen bzw. Modulen, und zwar aus einer Antriebseinheit 1, einem den ersten Reibbelag 4 betätigenden ersten Untersetzungsgetriebe 2, das gleichzeitig eine Rotations- in eine translatorische Bewegung umwandelt, einem zwischen der Antriebseinheit 1 und dem ersten Untersetzungsgetriebe 2 wirkungsmäßig geschalteten zweiten Untersetzungsgetriebe 3 sowie einer elektronischen Steuereinheit 8.The actuator, which is mounted by means not shown fastening means on the caliper, has a modular construction and consists essentially of four
independent assemblies or modules, namely from a
Die vorhin erwähnte Antriebseinheit 1 besteht aus einem Elektromotor, der im dargestellten Beispiel als ein permanentmagneterregter, elektronisch kommutierter Motor ausgebildet ist, dessen Stator 9 unbeweglich in einem Motorgehäuse 12 angeordnet ist und dessen Rotor 10 mit einer Welle 13 verbunden ist, die mit dem zweiten Untersetzungsgetriebe 3 wirkungsmäßig verbunden ist. Das erste Untersetzungsgetriebe 2 ist im gezeigten Beispiel als ein Kugelgewindetrieb ausgebildet ist, das in einem Getriebegehäuse 14 angeordnet ist, das auch einteilig mit dem vorhin erwähnten Bremssattel ausgeführt sein kann. Der Kugelgewindetrieb besteht dabei aus einer Gewindemutter 16 sowie einer Gewindespindel 17, wobei zwischen der Gewindemutter 16 und der Gewindespindel 17 mehrere, nicht näher bezeichnete Kugeln angeordnet sind, die bei einer Rotationsbewegung der Gewindespindel 17 umlaufen und die Gewindemutter 16 in eine axiale bzw. translatorische Bewegung versetzen. Die Gewindemutter 16 ist dabei vorzugsweise zweiteilig ausgeführt und besteht aus einem ersten Teil 18, das das vorhin erwähnte Betätigungselement 7 bildet, sowie einem zweiten Teil 19, in dem ein Rücklaufbereich für die Kugeln ausgebildet ist, in dem die Kugeln ohne Belastung an den Anfang der tragenden Laufbahn zurücklaufen können. Außerdem ist der Zeichnung zu entnehmen, dass das zweite Untersetzungsgetriebe 3 als ein Planetengetriebe ausgebildet ist.The previously mentioned
Die Anordnung ist dabei vorzugsweise derart getroffen, dass der Rotor 10 bzw. die Welle 13 des Elektromotors unter Zwischenschaltung des zweiten Untersetzungsgetriebes 3 die Gewindespindel 17 antreibt, während das erste Teil 18 der Gewindemutter 16 sich am ersten Reibbelag 4 abstützt. Die Ankopplung des ersten Untersetzungsgetriebes 2 an das zweite Untersetzungsgetriebe 3 erfolgt mittels einer querkraftfreien Steckverbindung, die das Bezugszeichen 20 trägt und die beispielsweise als eine Kerbverzahnung ausgeführt werden kann. Der Lagerung des Rotors 10 dienen zwei Radiallager 21, 22, die im Motorgehäuse 12 angeordnet sind.The arrangement is preferably made such that the
Wie weiterhin der
Bei derartigen elektromechanisch betätigbaren Bremsaktuatoren kann es, insbesondere in einer in
In
Eine alternative Ausführungsvariante ist in
Aus
Die dargestellte Aufzugsanlage 40 beinhaltet weiter ein Gegengewicht 47, welche das Gewicht der Aufzugkabine 42 zumindest teilweise kompensiert. Es hängt am entgegengesetzten Ende des Tragmittels 46. Das Gegengewicht 47 ist seinerseits entlang von Gegengewichts-Aufzugsschienen 6 verfahrbar, wobei es sich zwangsläufig gegengleich zur Aufzugkabine 42 bewegt.
Im Beispiel gemäss
Dieses Beispiel ist nicht abschließend. Selbstverständlich kann bei entsprechender Dimensionierung der Aufzugbremse 41 die Fangvorrichtung 50 entfallen, oder die Aufzugbremse 41 kann, unter Beibehaltung der Fangvorrichtung 50 an der Kabine 42, am Gegengewicht 47 angeordnet sein. Alternativ kann sie auch beim Aufzugantrieb 43 angeordnet sein, wo sie beispielsweise auf eine direkt mit einem Traktionsrad 48 verbundene Antriebsbremsscheibe eingreift, oder sie kann auf die Tragmittel eingreifen und diese abbremsen, bzw. halten.Out
The illustrated
In the example according to
This example is not exhaustive. Of course, with appropriate dimensioning of the
Die erfindungsgemässe Aufzugbremse verfügt also über zwei Lösemöglichkeiten. Eine erste Lösevorrichtung ist im Normalbetrieb verwendet und sie ist in der Regel in die normale Betätigungseinrichtung integriert. Der erste Reibbelag 4 wird dabei mit dem Betätigungselement 7, in der Regel elektromechanisch, an die Aufzugschiene angedrückt und er wird mit dem Betätigungselement 7 auch wieder gelöst bzw. entlastet. Dies ist die erste Lösemöglichkeit. Im Weiteren besitzt die Aufzugsbremse nun eine zweite Lösevorrichtung 24, wie in den vorgängigen Beispielen erläutert. Diese zweite Lösevorrichtung 24 ist vorzugsweise mechanisch, manuell betätigbar, ausgeführt, und sie ermöglicht ein Lösen, bzw. entsperren, der versperrten Aufzugsbremse im Notfall.The elevator brake according to the invention thus has two release options. A first release device is used in normal operation and is usually integrated in the normal operating device. The first friction lining 4 is thereby pressed with the
Weitere Anwendungen sind möglich. So kann die gezeigte Aufzugbremse auch als Bremse an einem Antrieb eines Fördersteges oder einer Fahrtreppe angebaut sein.
Im Weiteren kann das Betätigungselement anstelle oder ergänzend zu der beispielhaft beschriebenen elektromechanischen Aktuatorik auch eine hydraulische, eine pneumatische, eine rein mechanische oder allenfalls auch eine pyrotechnische Aktuatorik beinhalten.Further applications are possible. Thus, the elevator brake shown can also be mounted as a brake on a drive of a conveyor web or an escalator.
Furthermore, instead of or in addition to the electromechanical actuators described by way of example, the actuating element may also include a hydraulic, a pneumatic, a purely mechanical or possibly also a pyrotechnic actuator.
Claims (12)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08158614A EP2135832B1 (en) | 2008-06-19 | 2008-06-19 | Elevator brake and elevator assembly with an elevator brake |
ES08158614T ES2380839T3 (en) | 2008-06-19 | 2008-06-19 | Lift brake and elevator installation with an elevator brake |
AT08158614T ATE540888T1 (en) | 2008-06-19 | 2008-06-19 | ELEVATOR BRAKE AND AN ELEVATOR SYSTEM WITH AN ELEVATOR BRAKE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08158614A EP2135832B1 (en) | 2008-06-19 | 2008-06-19 | Elevator brake and elevator assembly with an elevator brake |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2135832A1 true EP2135832A1 (en) | 2009-12-23 |
EP2135832B1 EP2135832B1 (en) | 2012-01-11 |
Family
ID=39877864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08158614A Active EP2135832B1 (en) | 2008-06-19 | 2008-06-19 | Elevator brake and elevator assembly with an elevator brake |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2135832B1 (en) |
AT (1) | ATE540888T1 (en) |
ES (1) | ES2380839T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111377332A (en) * | 2018-12-31 | 2020-07-07 | 通力股份公司 | Elevator car parking brake and elevator car |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020070082A1 (en) * | 2000-12-07 | 2002-06-13 | Muff Josef A. | Safety brake and method for unlocking a safety brake |
EP1460019A1 (en) * | 2003-03-20 | 2004-09-22 | Thyssenkrupp Elevator Manufacturing France S.A.S. | Unlocking device for a safety catch of an elevator car, and the safety catch so equipped |
EP1671912A1 (en) | 2004-12-17 | 2006-06-21 | Inventio Ag | Elevator system with braking unit and method to keep the elevator stopped |
US20060180406A1 (en) * | 2004-12-17 | 2006-08-17 | Inventio Ag | Elevator installation with a braking device and method for braking and holding an elevator installation |
EP1724225A1 (en) * | 2004-02-23 | 2006-11-22 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device of elevator |
-
2008
- 2008-06-19 EP EP08158614A patent/EP2135832B1/en active Active
- 2008-06-19 ES ES08158614T patent/ES2380839T3/en active Active
- 2008-06-19 AT AT08158614T patent/ATE540888T1/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020070082A1 (en) * | 2000-12-07 | 2002-06-13 | Muff Josef A. | Safety brake and method for unlocking a safety brake |
EP1460019A1 (en) * | 2003-03-20 | 2004-09-22 | Thyssenkrupp Elevator Manufacturing France S.A.S. | Unlocking device for a safety catch of an elevator car, and the safety catch so equipped |
EP1724225A1 (en) * | 2004-02-23 | 2006-11-22 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device of elevator |
EP1671912A1 (en) | 2004-12-17 | 2006-06-21 | Inventio Ag | Elevator system with braking unit and method to keep the elevator stopped |
US20060180406A1 (en) * | 2004-12-17 | 2006-08-17 | Inventio Ag | Elevator installation with a braking device and method for braking and holding an elevator installation |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111377332A (en) * | 2018-12-31 | 2020-07-07 | 通力股份公司 | Elevator car parking brake and elevator car |
US11618647B2 (en) * | 2018-12-31 | 2023-04-04 | Kone Corporation | Elevator car parking brake |
CN111377332B (en) * | 2018-12-31 | 2024-03-22 | 通力股份公司 | Elevator car parking brake and elevator car |
Also Published As
Publication number | Publication date |
---|---|
ATE540888T1 (en) | 2012-01-15 |
EP2135832B1 (en) | 2012-01-11 |
ES2380839T3 (en) | 2012-05-18 |
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