EP3519339A1 - Electromechanical actuator for actuating a brake of a lift installation - Google Patents
Electromechanical actuator for actuating a brake of a lift installationInfo
- Publication number
- EP3519339A1 EP3519339A1 EP17784204.4A EP17784204A EP3519339A1 EP 3519339 A1 EP3519339 A1 EP 3519339A1 EP 17784204 A EP17784204 A EP 17784204A EP 3519339 A1 EP3519339 A1 EP 3519339A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- holding device
- connector
- state
- return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 210000003127 knee Anatomy 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 12
- 238000004146 energy storage Methods 0.000 claims description 5
- 210000000629 knee joint Anatomy 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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 invention relates to an electromechanical actuator for actuating a brake of an elevator installation, to a method for operating such an actuator and to an elevator installation comprising such an actuator.
- EP 2 794 451 B1 discloses an electromechanical actuator for actuating an elevator brake with a force accumulator, a holding device and a rear part device.
- An essential aspect of such actuators is the safe operation in the event of a defect of the elevator system.
- the holding device must be actively energized during normal operation; eliminates the power supply, the brake is activated.
- An energy-saving power supply is therefore desirable.
- the structure of the actuator should be as simple as possible and include few moving parts, which guarantee a sufficient ease of operation despite years of non-operation in an emergency.
- the object of the invention is to provide an improved electromagnetic actuator for actuating a brake of an elevator installation. This object is achieved by an actuator, a method and an elevator installation with the features specified in the main claims. Advantageous developments emerge from the subclaims, the following description and the drawings.
- the electromechanical actuator according to the invention comprises a force accumulator, a
- the actuator is configured such that, in a standby state, the retainer holds the connector in a standby position against an actuating force applied by the force accumulator, and in a firing state, the retainer does not hold the connector in the ready position and the connector is translated to a firing position.
- a return phase of the actuator is using the return from the trigger state in the
- Standby state convertible The holding device is connected via a toggle lever arrangement with the connector, wherein in the ready state, the toggle lever arrangement has a straighter alignment than in the release state.
- the method according to the invention for operating such an actuator comprises the following method steps: transferring the actuator from the standby state into the
- Tripped state by reducing a applied by the holding device Willingness holding power; Transferring the actuator from the release state to the standby state during a return phase using the return member and overcoming the operating force provided by the force accumulator, thereby generating a return holding force based on the holding device; Holding the connector in its
- the standby holding force provided by the holding device during the standby state is lower than the maximum return holding force provided by the holding device during the return phase.
- the inventive method is also characterized by the fact that defined in the return phase, a greater holding force is provided as in the operating state. This can
- an electromagnet is at least partially operated with a larger current during the return phase than in the standby state.
- the holding device provides a comparatively high holding power to stretch the toggle lever assembly, this holding power is then redefined for the duration of the comparatively long operating state again reduced.
- the toggle assembly comprises a first lever and a second lever, wherein the first lever is connected via a knee joint to the second lever, and the first lever with the second lever includes a knee angle.
- a more extended alignment of the toggle lever arrangement is particularly present when a knee angle between two toggle levers of the toggle lever arrangement is closer to 180 ° than in
- the knee angle in the standby state is in particular greater than the knee angle in the triggering state, wherein the knee angle can in particular assume a maximum value of 180 °.
- a knee angle of 180 ° thus represents the most stretched orientation.
- the knee angle is defined in particular by the angle of two straight lines through the articulation points of the associated toggle levers.
- the actuator comprises guide means for selectively guiding the holding device from a release position to a return position.
- the release position of the holding device is present when the holding device can no longer hold the connector in its standby position and the actuator can assume the triggering state. In principle, no holding force can be provided by the holding device in the release position.
- the holding device in turn can apply a holding force, in particular a scrubholhaltekraft, which is required during the
- the guide means may comprise a guide slot defining a trajectory of the
- Holding device defined during the return phase. During the triggering state and in preparation for the return phase, a first part of the holding device can be selectively guided in the direction of a second part of the holding device.
- the elevator installation according to the invention comprises an actuator of the aforementioned type and / or an actuator which is operated by the aforesaid method.
- Fig. 1 shows an actuator according to the invention in a first embodiment in one
- Fig. 2 shows the actuator of Figure 1 in a trigger state
- Fig. 3 shows the actuator of Figure 1 during a rinse phase
- FIG. 4 shows a diagram comprising the profile of the holding force and the triggering force as well as the course of the knee angle during the different operating states of the holding device;
- Fig. 5 is a schematic representation of an elevator system according to the invention comprising an actuator according to the invention.
- FIG. 6 shows an actuator according to the invention in a second embodiment in one
- Fig. 7 shows the actuator of Figure 6 during the remindholphase in side view.
- FIG. 5 shows an elevator installation 21 according to the invention, which has a car 22, which is accommodated within an elevator shaft 23. On the basis of guide rails 24, the car is held vertically movable by means not shown guide rollers. In the event of a defect, one or more safety brakes 9 can be activated.
- the elevator installation 21 comprises an actuator 1 according to the invention with a connector 7. The connector 7 conducts a release force from the actuator 1 to the brakes 9.
- FIGS. 1 to 3 show the same actuator 1 in respectively different operating states.
- the actuator 1 initially comprises a frame 8 on which the components of the actuator 1 are mounted.
- the connector 7 in this embodiment is a rod which is displaced for operation parallel to the direction of extension thereof.
- the coil spring 2 is clamped between a first power storage stop 18, here exemplified in the form of a stop ring, which is fixedly attached to the connector 7 and with the connector 7 moves, and a second power storage stop 19, which is fixedly mounted on the frame 8.
- the connector 7 is subjected to an actuating force F 2 starting from the second force accumulator stop 19 in the direction of the first force accumulator stop 18.
- the first power storage stop 18 is displaced until it strikes a third trigger stop 20 on the frame 8.
- the connector 7 can be held by a holding device 3 in a standby position, which provides a counterforce on the connector 7 via a toggle lever arrangement 10.
- the toggle lever assembly 10 includes for this purpose a first lever 11 and a second lever 12, which are rotatably connected to each other at a knee joint 13.
- the first lever 11 is rotatably supported on a first support point 14 on the frame 8 from;
- the second lever 12 is rotatably supported at a second support point 15 on the connector 7.
- the holding device 3 is connected to the toggle lever assembly 10.
- the holding device 3 comprises two parts 4, 5, namely one, in particular ferromagnetic, anchor plate 5 and a switchable electromagnet 4, of which a first part (here the anchor plate 5) on the knee and a second part (here the electromagnet 4) with the interposition of a Return member 6 is mounted on the frame 8.
- the two parts 4, 5 may also be arranged vice versa.
- the return divider 6 may comprise a spindle drive.
- the return divider 6 can be transferred between a ready position (FIGS. 1 and 2) and a return position (FIG. 3).
- the return divider 6 carries a part 4 of the holding device 3 and can transfer the holding device 3 between a release position (FIGS. 2) and a return position (FIG. 3).
- FIG. 1 shows the holding device 3 in its ready position.
- the return divider 6 comprises a guide slide 16, which slides in a guide slot 17 and thus guides the return divider 6 during its extension movement in a predefined path.
- the return divider 6 is shown in its standby position, in Figure 2, the return divider 6 is shown in its return position.
- the energy store 2, the holding device 3, the return divider 6, the two parts 4, 5 of the holding device 3, the toggle lever arrangement 10 and the connector 7 are each in a standby position.
- the return divider 6 is supported on the frame 8 and holds the first part 4 of the holding device 3 in its standby position, which in turn holds the second part 5 of the holding device 3 in its standby position.
- the second part 5 holds the toggle lever assembly 10 in its standby position.
- the toggle assembly 10 holds the connector 7 in its standby position.
- To initiate the triggering state II ( Figure 2) eliminates the readiness holding force by switching off the electromagnet 4. This also includes a reduction of the holding force below a threshold value.
- the adhesion of the anchor plate 5 on the magnet 4 is omitted, whereby the second part 5, the toggle lever assembly 10 and the connector 7 are transferred due to the application of the energy storage 2 in the release position.
- the return divider 6 initially remains in the ready position; the position of the holding device 3 is hereby referred to as a release position, in which the first part 4 in the ready position and the second part 5 in the release position.
- Figures 6 and 7 show an alternative embodiment of the actuator during the standby phase I and the rinse phase III.
- the structure and operation largely corresponds to that of the actuator of Figures 1 to 3. In this respect, the previous description is also applicable to this actuator; the deviations are described below.
- the coil spring 2 is clamped between a first power storage stop 18, here for example in the form of a shoulder which is fixedly attached to the first lever 11 and moves with the first lever 11, and a second power storage stop 19 which is fixedly mounted on the frame 8. Since the coil spring 2 is now arranged in the region of the first lever, the frame 8 can be made correspondingly smaller.
- the arrangement and effective direction of the holding device 3 and the return divider 6 is approximately parallel to the direction of the first lever II.
- the second lever 12 preferably has a transverse arm 25, on which the second part 5 is arranged.
- the cross boom 25 increases the knee. Again, the second part 5 is located at the knee. As a result, the overall space of the actuator is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Manipulator (AREA)
Abstract
Description
Elektromechanischer Betätiger zum Betätigen einer Bremse einer Aufzugsanlage Electromechanical actuator for actuating a brake of an elevator installation
Die Erfindung betrifft einen Elektromechanischen Betätiger zum Betätigen einer Bremse einer Aufzugsanlage, ein Verfahren zum Betreiben eines solchen Betätigers sowie eine Aufzugsanlage umfassend einen solchen Betätiger. The invention relates to an electromechanical actuator for actuating a brake of an elevator installation, to a method for operating such an actuator and to an elevator installation comprising such an actuator.
Die EP 2 794 451 Bl offenbart einen elektromechanischen Betätiger zum Betätigen einer Aufzugsbremse mit einem Kraftspeicher, einer Halteeinrichtung und einer Rücksteileinrichtung. EP 2 794 451 B1 discloses an electromechanical actuator for actuating an elevator brake with a force accumulator, a holding device and a rear part device.
Ein wesentlicher Aspekt solcher Betätiger ist die sichere Betätigung im Fall eines Defekts der Aufzugsanlage. Dafür muss die Halteeinrichtung während des Normalbetriebs aktiv bestromt werden; entfällt die Stromzufuhr, wird die Bremse aktiviert. Eine möglichst energiesparende Bestromung ist daher wünschenswert. Zugleich soll der Aufbau des Betätigers möglichst einfach sein und wenig bewegliche Teile umfassen, die trotz jahrelanger Nichtbetätigung im Notfall eine ausreichende Leichtgängigkeit gewährleisten. An essential aspect of such actuators is the safe operation in the event of a defect of the elevator system. For this, the holding device must be actively energized during normal operation; eliminates the power supply, the brake is activated. An energy-saving power supply is therefore desirable. At the same time, the structure of the actuator should be as simple as possible and include few moving parts, which guarantee a sufficient ease of operation despite years of non-operation in an emergency.
Aufgabe der Erfindung ist es, einen verbesserten elektromagnetischen Betätiger zum Betätigen einer Bremse einer Aufzugsanlage bereitzustellen. Gelöst wird diese Aufgabe durch einen Betätiger, ein Verfahren und eine Aufzugsanlage mit den in den Hauptansprüchen angegebenen Merkmalen. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen, der nachfolgenden Beschreibung sowie den Zeichnungen. The object of the invention is to provide an improved electromagnetic actuator for actuating a brake of an elevator installation. This object is achieved by an actuator, a method and an elevator installation with the features specified in the main claims. Advantageous developments emerge from the subclaims, the following description and the drawings.
Der erfindungsgemäße elektromechanische Betätiger umfasst einen Kraftspeicher, eine The electromechanical actuator according to the invention comprises a force accumulator, a
Halteeinrichtung, einen Rücksteiler und einen Verbinder. Der Betätiger ist derart ausgebildet, dass in einem Bereitschaftszustand die Halteeinrichtung den Verbinder entgegen einer durch den Kraftspeicher aufgebrachten Betätigungskraft in einer Bereitschaftsstellung hält, und dass in einem Auslösezustand die Halteeinrichtung den Verbinder nicht in der Bereitschaftsstellung hält und der Verbinder in eine Auslösestellung überführt ist. Während einer Rückholphase ist der Betätiger unter Verwendung des Rückstellers aus dem Auslösezustand in den Holding device, a return divider and a connector. The actuator is configured such that, in a standby state, the retainer holds the connector in a standby position against an actuating force applied by the force accumulator, and in a firing state, the retainer does not hold the connector in the ready position and the connector is translated to a firing position. During a return phase of the actuator is using the return from the trigger state in the
Bereitschaftszustand überführbar. Die Halteeinrichtung ist über eine Kniehebelanordnung mit dem Verbinder verbunden, wobei im Bereitschaftszustand die Kniehebelanordnung eine gestrecktere Ausrichtung als im Auslösezustand aufweist. Standby state convertible. The holding device is connected via a toggle lever arrangement with the connector, wherein in the ready state, the toggle lever arrangement has a straighter alignment than in the release state.
Das erfindungsgemäße Verfahren zum Betreiben eines solchen Betätigers umfasst die folgenden Verfahrensschritte: Überführen des Betätigers aus dem Bereitschaftszustand in den The method according to the invention for operating such an actuator comprises the following method steps: transferring the actuator from the standby state into the
Auslösezustand durch Verringerung einer durch die Halteeinrichtung aufgebrachten Bereitschaftshaltekraft; Überführen des Betätigers aus dem Auslösezustand in den Bereitschaftszustand während einer Rückholphase unter Verwendung des Rückstellers und unter Überwindung der durch den Kraftspeicher bereitgestellten Betätigungskraft, dabei Erzeugen einer Rückholhaltekraft anhand der Halteeinrichtung; Halten des Verbinders in dessen Tripped state by reducing a applied by the holding device Willingness holding power; Transferring the actuator from the release state to the standby state during a return phase using the return member and overcoming the operating force provided by the force accumulator, thereby generating a return holding force based on the holding device; Holding the connector in its
Bereitschaftsstellung durch Bereitstellen einer Bereitschaftshaltekraft anhand der Standby position by providing a standby holding force on the basis of
Halteeinrichtung. Holding device.
Dabei ist die durch die Halteeinrichtung während des Bereitschaftszustandes bereitgestellte Bereitschaftshaltekraft geringer als die durch die Halteeinrichtung während der Rückholphase maximal bereitgestellte Rückholhaltekraft. In this case, the standby holding force provided by the holding device during the standby state is lower than the maximum return holding force provided by the holding device during the return phase.
Je gestreckter die Stellung des Kniehebels ist, desto geringer ist die Kraft, die zur The more extended the position of the toggle lever is, the lower is the force required for
Aufrechterhaltung dieser Stellung durch die Halteeinrichtung in dessen Bereitschaftsstellung erforderlich ist, was sich unmittelbar auf den Energieverbrach der Halteeinrichtung in der Bereitschaftsstellung auswirken kann. Da im realen Betrieb die Halteeinrichtung mit Ausnahme von Notfällen immer in der Bereitschaftsstellung ist, kann der Gesamtenergieverbrauch niedrig gehalten werden, obwohl durch den Kraftspeicher eine recht hohe Betätigungskraft bereitgestellt wird. Zwar wird im Betätigungszustand die Kniehebelanordnung in eine Stellung überführt, in der der Kniehebel deutlich weniger gestreckt ist; in der Rückholphase muss daher eine deutlich höhere Kraft aufgewendet werden als im Bereitschaftszustand. Da die Rückholphasen über die Lebensdauer des Betätigers lediglich einen zeitlich vernachlässigbaren Anteil ausmachen, sind dieser erhöhte Kraftaufwand und der damit verbundene Energieaufwand hinnehmbar und hat keine nennenswerten Auswirkungen auf die Betriebskosten. Maintaining this position by the holding device in its standby position is required, which can directly affect the energy consumption of the holding device in the standby position. Since, in real operation, the holding device, with the exception of emergencies always in the ready position, the total energy consumption can be kept low, although a fairly high operating force is provided by the energy storage. Although in the operating state, the toggle lever assembly is transferred to a position in which the toggle lever is stretched much less; in the return phase therefore a much higher force must be used than in the standby state. Since the recovery phases over the lifetime of the actuator make up only a negligible proportion of time, this increased effort and the associated energy consumption are acceptable and has no significant impact on operating costs.
Das erfindungsgemäße Verfahren zeichnet sich zudem dadurch aus, dass in der Rückholphase definiert eine größere Haltekraft bereitgestellt wird als im Betriebszustand. Dies kann The inventive method is also characterized by the fact that defined in the return phase, a greater holding force is provided as in the operating state. This can
beispielsweise dadurch realisiert werden, dass ein Elektromagnet während der Rückholphase zumindest zweitweise mit einem größeren Strom betrieben wird als im Bereitschaftszustand. Während also im Rahmen der vergleichsweise kurzen Rückholphase die Halteinrichtung eine vergleichsweise hohe Halteleistung bereitstellt, um die Kniehebelanordnung zu strecken, wird diese Halteleistung anschließend für die Dauer des vergleichsweise langen Betriebszustands wieder definiert reduziert. For example, be realized in that an electromagnet is at least partially operated with a larger current during the return phase than in the standby state. Thus, while in the context of the relatively short return phase, the holding device provides a comparatively high holding power to stretch the toggle lever assembly, this holding power is then redefined for the duration of the comparatively long operating state again reduced.
Vorzugsweise umfasst die Kniehebelanordnung einen ersten Hebel und einen zweiten Hebel, wobei der erste Hebel über ein Kniegelenk mit dem zweiten Hebel verbunden ist, und der erste Hebel mit dem zweiten Hebel einen Kniewinkel einschließt. Eine gestrecktere Ausrichtung der Kniehebelanordnung liegt insbesondere dann vor, wenn ein Kniewinkel zwischen zwei Kniehebeln der Kniehebelanordnung näher an 180° liegt als im Preferably, the toggle assembly comprises a first lever and a second lever, wherein the first lever is connected via a knee joint to the second lever, and the first lever with the second lever includes a knee angle. A more extended alignment of the toggle lever arrangement is particularly present when a knee angle between two toggle levers of the toggle lever arrangement is closer to 180 ° than in
Vergleichszustand. Der Kniewinkel ist im Bereitschaftszustand insbesondere größer ist als der Kniewinkel im Auslösezustand, wobei der Kniewinkel insbesondere einen Maximalwert von 180° einnehmen kann. Ein Kniewinkel von 180° stellt somit die gestreckteste Ausrichtung dar. Der Kniewinkel wird insbesondere durch den Winkel zweier Geraden durch die Gelenkpunkte der zugehörigen Kniehebel definiert. Comparison condition. The knee angle in the standby state is in particular greater than the knee angle in the triggering state, wherein the knee angle can in particular assume a maximum value of 180 °. A knee angle of 180 ° thus represents the most stretched orientation. The knee angle is defined in particular by the angle of two straight lines through the articulation points of the associated toggle levers.
Vorzugsweise umfasst der Betätiger Führungsmittel zum gezielten Führen der Halteinrichtung aus einer Auslösestellung in eine Rückholstellung. Die Auslösestellung der Halteeinrichtung liegt dann vor, wenn die Halteeinrichtung den Verbinder nicht mehr in dessen Bereitschaftsstellung halten kann und der Betätiger den Auslösezustand einnehmen kann. In der Auslösestellung kann grundsätzlich keine Haltekraft durch die Halteinrichtung bereitgestellt werden. In der Preferably, the actuator comprises guide means for selectively guiding the holding device from a release position to a return position. The release position of the holding device is present when the holding device can no longer hold the connector in its standby position and the actuator can assume the triggering state. In principle, no holding force can be provided by the holding device in the release position. In the
Rückholstellung der Halteeinrichtung kann die Halteeinrichtung wiederum eine Haltekraft, insbesondere eine Rückholhaltekraft aufbringen, welche erforderlich ist während des Rückholstellung the holding device, the holding device in turn can apply a holding force, in particular a Rückholhaltekraft, which is required during the
Überführens des Verbinders aus dessen Auslösestellung in dessen Bereitschaftsstellung. Transferring the connector from its release position in its standby position.
Die Führungsmittel können eine Führungskulisse umfassen, welche eine Bahnkurve der The guide means may comprise a guide slot defining a trajectory of the
Halteeinrichtung während der Rückholphase definiert. Während des Auslösezustandes und zur Vorbereitung der Rückholphase kann ein erstes Teil der Halteeinrichtung gezielt in Richtung eines zweiten Teils der Halteeinrichtung geführt werden. Holding device defined during the return phase. During the triggering state and in preparation for the return phase, a first part of the holding device can be selectively guided in the direction of a second part of the holding device.
Die erfindungsgemäße Aufzugsanlage umfasst einen Betätiger der vorgenannten Art und/oder einen Betätiger der durch vorgenanntes Verfahren betrieben wird. Die bezüglich der Vorrichtung bzw. des Verfahrens genannten Vorteile und weiteren Ausgestaltungsmöglichkeiten sind jeweils ohne weiteres auf das Verfahren bzw. den Betätiger und die Aufzugsanlage anwendbar. The elevator installation according to the invention comprises an actuator of the aforementioned type and / or an actuator which is operated by the aforesaid method. The advantages mentioned with respect to the device or the method and further design possibilities are in each case readily applicable to the method or the actuator and the elevator installation.
Die Erfindung wird anhand der Figuren nachfolgend näher erläutert; hierin zeigt: The invention will be explained in more detail below with reference to the figures; herein shows:
Fig. 1 einen erfindungsgemäßen Betätiger in einer ersten Ausgestaltung in einem Fig. 1 shows an actuator according to the invention in a first embodiment in one
Bereitschaftszustand standby
a) in perspektischer Ansicht a) in perspective view
b) in Seitenansicht; b) in side view;
Fig. 2 den Betätiger aus Figur 1 in einem Auslösezustand Fig. 2 shows the actuator of Figure 1 in a trigger state
a) in perspektischer Ansicht a) in perspective view
b) in Seitenansicht; Fig. 3 den Betätiger aus Figur 1 während einer Rückholphase b) in side view; Fig. 3 shows the actuator of Figure 1 during a Rückholphase
a) in perspektischer Ansicht a) in perspective view
b) in Seitenansicht; b) in side view;
Fig. 4 ein Diagramm umfassend den Verlauf der Haltekraft und der Auslösekraft sowie den Verlauf des Kniewinkels während der unterschiedlichen Betriebszustände der Halteeinrichtung; 4 shows a diagram comprising the profile of the holding force and the triggering force as well as the course of the knee angle during the different operating states of the holding device;
Fig. 5 eine schematische Darstellung einer erfindungsgemäßen Aufzugsanlage umfassend einen erfindungsgemäßen Betätiger. Fig. 5 is a schematic representation of an elevator system according to the invention comprising an actuator according to the invention.
Fig. 6 einen erfindungsgemäßen Betätiger in einer zweiten Ausgestaltung in einem 6 shows an actuator according to the invention in a second embodiment in one
Bereitschaftszustand in Seitenansicht; Standby state in side view;
Fig. 7 den Betätiger nach Figur 6 während der Rückholphase in Seitenansicht. Fig. 7 shows the actuator of Figure 6 during the Rückholphase in side view.
Figur 5 zeigt eine erfindungsgemäße Aufzugsanlage 21, die einen Fahrkorb 22 aufweist, welcher innerhalb eines Aufzugsschachtes 23 aufgenommen ist. Anhand von Führungsschienen 24 wird der Fahrkorb mittels nicht dargestellten Führungsrollen vertikal verfahrbar gehalten. Im Falle eines Defekts können eine oder mehrere Sicherheitsbremsen 9 aktiviert werden. Hierfür umfasst die Aufzugsanlage 21 einen erfindungsgemäßen Betätiger 1 mit einem Verbinder 7. Der Verbinder 7 leitet eine Auslösekraft vom Betätiger 1 auf die Bremsen 9. FIG. 5 shows an elevator installation 21 according to the invention, which has a car 22, which is accommodated within an elevator shaft 23. On the basis of guide rails 24, the car is held vertically movable by means not shown guide rollers. In the event of a defect, one or more safety brakes 9 can be activated. For this purpose, the elevator installation 21 comprises an actuator 1 according to the invention with a connector 7. The connector 7 conducts a release force from the actuator 1 to the brakes 9.
Anhand der Figuren 1 bis 3 wird der erfindungsgemäße Betätiger 1 in einer ersten Ausgestaltung beschrieben, wobei die Figuren 1 bis 3 denselben Betätiger 1 in jeweils unterschiedlichen Betriebszuständen zeigen. The actuator 1 according to the invention will be described in a first embodiment with reference to FIGS. 1 to 3, wherein FIGS. 1 to 3 show the same actuator 1 in respectively different operating states.
Der Betätiger 1 umfasst zunächst einen Rahmen 8, an welchem die Komponenten des Betätigers 1 montiert sind. Der Verbinder 7 ist in diesem Ausführungsbeispiel eine Stange, die zur Betätigung parallel zu deren Erstreckungsrichtung verlagert wird. Vorgespannt wird der Verbinder 7 durch einen Kraftspeicher 2, hier beispielhaft in Form einer Spiralfeder 2. Diese Spiralfeder 2 ist eingespannt zwischen einem ersten Kraftspeicheranschlag 18, hier beispielhaft in Form eines Anschlagringes, der fest an dem Verbinder 7 angebracht ist und sich mit dem Verbinder 7 bewegt, und einem zweiten Kraftspeicheranschlag 19, der fest am Rahmen 8 angebracht ist. Durch den Kraftspeicher 2 wird folglich der Verbinder 7 ausgehend von dem zweiten Kraftspeicheranschlag 19 in Richtung des ersten Kraftspeicheranschlages 18 mit einer Betätigungskraft F2 beaufschlagt. Bei einer Auslösung wird der erste Kraftspeicheranschlag 18 derart verlagert, bis dieser auf einen dritten Auslöseanschlag 20 am Rahmen 8 auftrifft. Der Verbinder 7 kann von einer Halteeinrichtung 3 in einer Bereitschaftsstellung gehalten werden, die über eine Kniehebelanordnung 10 eine Gegenkraft auf den Verbinder 7 bereitstellt. Die Kniehebelanordnung 10 umfasst dazu einen ersten Hebel 11 und einen zweiten Hebel 12, die an einem Kniegelenk 13 miteinander drehbar verbunden sind. Der erste Hebel 11 stützt sich drehbar an einem ersten Stützpunkt 14 am Rahmen 8 ab; der zweite Hebel 12 stützt sich an einem zweiten Stützpunkt 15 drehbar am Verbinder 7 ab. Am Knie (nicht zwangsläufig unmittelbar exakt am Kniegelenk 13) ist die Halteeinrichtung 3 an der Kniehebelanordnung 10 angeschlossen. The actuator 1 initially comprises a frame 8 on which the components of the actuator 1 are mounted. The connector 7 in this embodiment is a rod which is displaced for operation parallel to the direction of extension thereof. The coil spring 2 is clamped between a first power storage stop 18, here exemplified in the form of a stop ring, which is fixedly attached to the connector 7 and with the connector 7 moves, and a second power storage stop 19, which is fixedly mounted on the frame 8. As a result of the force accumulator 2, the connector 7 is subjected to an actuating force F 2 starting from the second force accumulator stop 19 in the direction of the first force accumulator stop 18. When triggered, the first power storage stop 18 is displaced until it strikes a third trigger stop 20 on the frame 8. The connector 7 can be held by a holding device 3 in a standby position, which provides a counterforce on the connector 7 via a toggle lever arrangement 10. The toggle lever assembly 10 includes for this purpose a first lever 11 and a second lever 12, which are rotatably connected to each other at a knee joint 13. The first lever 11 is rotatably supported on a first support point 14 on the frame 8 from; the second lever 12 is rotatably supported at a second support point 15 on the connector 7. At the knee (not necessarily directly exactly on the knee joint 13), the holding device 3 is connected to the toggle lever assembly 10.
Die Halteeinrichtung 3 umfasst zwei Teile 4, 5 , nämliche eine, insbesondere ferromagnetische, Ankerplatte 5 sowie einen schaltbaren Elektromagneten 4, von denen ein erstes Teil (hier die Ankerplatte 5) am Knie und ein zweites Teil (hier der Elektromagnet 4) unter Zwischenschaltung eines Rückstellers 6 am Rahmen 8 angebracht ist. Die beiden Teile 4, 5 können ebenso umgekehrt angeordnet sein. The holding device 3 comprises two parts 4, 5, namely one, in particular ferromagnetic, anchor plate 5 and a switchable electromagnet 4, of which a first part (here the anchor plate 5) on the knee and a second part (here the electromagnet 4) with the interposition of a Return member 6 is mounted on the frame 8. The two parts 4, 5 may also be arranged vice versa.
Der Rücksteiler 6 kann einen Spindelantrieb umfassen. Der Rücksteiler 6 ist zwischen einer Bereitschaftsstellung (Figuren 1 und 2) und einer Rückholstellung (Figur 3) überführbar. Der Rücksteiler 6 trägt ein Teil 4 der Haltevorrichtung 3 und kann die Haltevorrichtung 3 zwischen einer Auslösestellung (Figuren 2) und einer Rückholstellung (Figur 3) überführen. Figur 1 zeigt die Halteeinrichtung 3 in deren Bereitschaftsstellung. The return divider 6 may comprise a spindle drive. The return divider 6 can be transferred between a ready position (FIGS. 1 and 2) and a return position (FIG. 3). The return divider 6 carries a part 4 of the holding device 3 and can transfer the holding device 3 between a release position (FIGS. 2) and a return position (FIG. 3). FIG. 1 shows the holding device 3 in its ready position.
Der Rücksteiler 6 umfasst einen Führungsschieber 16, der in einer Führungskulisse 17 gleitet und damit den Rücksteiler 6 während seiner Ausfahrbewegung in einer vordefinierten Bahn führt. The return divider 6 comprises a guide slide 16, which slides in a guide slot 17 and thus guides the return divider 6 during its extension movement in a predefined path.
In den Figuren 1 ist der Rücksteiler 6 in dessen Bereitschaftsstellung gezeigt, in Figur 2 ist der Rücksteiler 6 in dessen Rückholstellung gezeigt. In the figures 1, the return divider 6 is shown in its standby position, in Figure 2, the return divider 6 is shown in its return position.
Im Bereitschaftszustand I (Figur 1) befindet sich der der Kraftspeicher 2, die Halteeinrichtung 3, der Rücksteiler 6, die beiden Teile 4,5 der Haltevorrichtung 3, die Kniehebelanordnung 10 und der Verbinder 7 jeweils in einer Bereitschaftsstellung. Der Rücksteiler 6 stützt sich am Rahmen 8 ab und hält das erste Teil 4 der Haltevorrichtung 3 in dessen Bereitschaftsstellung, wodurch wiederum das zweite Teil 5 der Haltevorrichtung 3 in dessen Bereitschaftsstellung gehalten wird. Das zweite Teil 5 hält die Kniehebelanordnung 10 in deren Bereitschaftsstellung. Die Kniehebelanordnung 10 hält den Verbinder 7 in dessen Bereitschaftsstellung. In the standby state I (FIG. 1), the energy store 2, the holding device 3, the return divider 6, the two parts 4, 5 of the holding device 3, the toggle lever arrangement 10 and the connector 7 are each in a standby position. The return divider 6 is supported on the frame 8 and holds the first part 4 of the holding device 3 in its standby position, which in turn holds the second part 5 of the holding device 3 in its standby position. The second part 5 holds the toggle lever assembly 10 in its standby position. The toggle assembly 10 holds the connector 7 in its standby position.
Über die Geometrie der Kniehebelanordnung 10 und die Betätigungskraft F2 wird dabei eine Bereitschaftshaltekraft F3! der Halteeinrichtung 3 definiert, die erforderlich ist, um die Kniehebelanordnung 10 in deren Bereitschaftsstellung zu halten. Es ist ersichtlich, dass diese Bereitschaftshaltekraft F3! umso kleiner sein kann, je gestreckter die Kniehebelanordnung 10 ist, also je größer der Kniehebel α ist. Der Betrag der Haltekraft ist dabei wesentlich für die kontinuierliche Leistungsaufnahme der Halteeinrichtung 3 während des Normalbetriebs der Aufzugsanlage 21, in welchem der Betätiger in dessen Bereitschaftsstellung ist. About the geometry of the toggle lever assembly 10 and the operating force F 2 while a standby holding force F 3! the holding device 3 defined, which is required to the To keep toggle lever assembly 10 in its standby position. It is evident that this willingness holding force F 3! the smaller can be, the more extended the toggle lever arrangement 10 is, ie the larger the toggle lever α is. The amount of holding force is essential for the continuous power consumption of the holding device 3 during normal operation of the elevator installation 21, in which the actuator is in its standby position.
Zum Einleiten des Auslösezustandes II (Figur 2) entfällt die Bereitschaftshaltekraft durch Ausschalten des Elektromagneten 4. Hierunter fällt auch eine Reduktion der Haltekraft unterhalb eines Grenzwertes. Die Haftung der Ankerplatte 5 am Magneten 4 entfällt, wodurch die zweite Teil 5, die Kniehebelanordnung 10 und der Verbinder 7 aufgrund der Beaufschlagung durch den Kraftspeicher 2 in deren Auslösestellung überführt werden. Der Rücksteiler 6 verbleibt zunächst noch in der Bereitschaftsstellung; die Stellung der Halteeinrichtung 3 wird hierbei als Auslösestellung bezeichnet, bei der das erste Teil 4 in der Bereitschaftsstellung und das zweite Teil 5 in der Auslösestellung ist. To initiate the triggering state II (Figure 2) eliminates the readiness holding force by switching off the electromagnet 4. This also includes a reduction of the holding force below a threshold value. The adhesion of the anchor plate 5 on the magnet 4 is omitted, whereby the second part 5, the toggle lever assembly 10 and the connector 7 are transferred due to the application of the energy storage 2 in the release position. The return divider 6 initially remains in the ready position; the position of the holding device 3 is hereby referred to as a release position, in which the first part 4 in the ready position and the second part 5 in the release position.
Zum Rückholen wird dann der Rücksteiler 6 mitsamt des ersten Teils 4 in eine Rückholstellung ausgefahren, in welcher der Magnet 4 und die Ankerplatte 5 wieder in Kontakt zueinander gebracht werden (Figur 3). Nun befindet sich die Halteeinrichtung 3 in deren Rückholstellung. Der Elektromagnet 4 wird aktiviert und zieht die Ankerplatte 5 an. Dadurch wird bewirkt, dass die Halteeinrichtung 3 eine Rückholhaltekraft F3w auf die Kniehebelanordnung 10 aufbringen kann. Während der Rückholphase III wird nun der Rücksteiler 6 in dessen Bereitschaftsstellung überführt, wodurch auch die Halteeinrichtung 3, die Kniehebelanordnung 10 und der Verbinder 7 in deren Bereitschaftsstellung überführt werden. Nach Beendigung der Rückholphase nimmt der Betätiger wieder dessen Bereitschaftszustand ein. To return the return divider 6 is then extended together with the first part 4 in a return position, in which the magnet 4 and the anchor plate 5 are brought back into contact with each other (Figure 3). Now the holding device 3 is in its return position. The electromagnet 4 is activated and attracts the anchor plate 5. This causes the holding device 3 can apply a Rückholhaltekraft F 3 w on the toggle lever assembly 10. During the Rückholphase III now the return divider 6 is transferred to its standby position, whereby the holding device 3, the toggle lever assembly 10 and the connector 7 are transferred to their standby position. After completion of the return phase of the actuator returns to its standby state.
In Figur 4 sind wesentliche Parameter der Funktion des Betätigers qualitativ skizziert. Im Bereitschaftszustand I beträgt der Kniewinkel α=α|. Die Überführung von dem Bereitschaftszustand zur Auslösezustand II erfolgt durch Lösen der Halteeinrichtung (Haltekraft F2 = 0) schlagartig, so dass der Kniewinkel sich schlagartig auf α=αΝ reduziert. Während der Rückholphase III erfolgt eine kontinuierliche, lineare Rückstellung der Halteeinrichtung 3, was zu einer degressiven Vergrößerung des Kniewinkels α führt. Dies wiederum führt zu einem degressiv abfallenden Verlauf der Haltekraft F3. Somit reicht eine Bereitschaftshaltekraft F3! aus, die deutlich geringer ist als die Rückholhaltekraft F3N|. Da die Bereitschaftshaltekraft F3! während des gesamten Normalbetriebs aufrechterhalten werden muss, kann die Leistungsaufnahme reduziert werden, was zu einer Ersparnis von Energiekosten führt. Figur 6 und 7 zeigen eine alternative Ausgestaltung des Betätigers während der Bereitschaftsphase I bzw. der Rückholphase III. Der Aufbau und die Funktionsweise entspricht weitgehend derjenigen des Betätigers nach den Figuren 1 bis 3. Insofern ist die vorherigen Beschreibung auch auf diesen Betätiger anwendbar; die Abweichungen werden nachfolgend beschrieben. In Figure 4 essential parameters of the function of the actuator are qualitatively outlined. In the standby state I, the knee angle α = α |. The transfer from the standby state to the release state II occurs abruptly by releasing the holding device (holding force F 2 = 0), so that the knee angle abruptly reduces to α = α Ν . During the return phase III is a continuous, linear provision of the holding device 3, which leads to a degressive increase in the knee angle α. This in turn leads to a decreasing gradient of the holding force F 3 . Thus, a stand-by holding force F 3 is enough ! which is significantly lower than the return holding force F 3N |. Since the standby holding force F 3! can be maintained throughout the normal operation, the power consumption can be reduced, resulting in a saving of energy costs. Figures 6 and 7 show an alternative embodiment of the actuator during the standby phase I and the Rückholphase III. The structure and operation largely corresponds to that of the actuator of Figures 1 to 3. In this respect, the previous description is also applicable to this actuator; the deviations are described below.
Die Spiralfeder 2 ist eingespannt zwischen einem ersten Kraftspeicheranschlag 18, hier beispielhaft in Form eines Absatzes, der fest an dem ersten Hebel 11 angebracht ist und sich mit dem ersten Hebel 11 bewegt, und einem zweiten Kraftspeicheranschlag 19, der fest am Rahmen 8 angebracht ist. Da die Spiralfeder 2 nun im bereich des ersten Hebels angeordnet ist, kann der Rahmen 8 entsprechend kleiner ausgeführt werden. Die Anordnung und Wirkrichtung der Haltevorrichtung 3 und des Rücksteiler 6 ist in etwa parallel zur Richtung des ersten Hebels I I . Der zweite Hebel 12 weist vorzugsweise einen Querausleger 25 auf, an dem das zweite Teil 5 angeordnet ist. Der Querausleger 25 vergrößert das Knie. Auch hier ist das zweite Teil 5 am Knie angeordnet. Hierdurch wird insgesamt der Bauraum des Betätigers reduziert. The coil spring 2 is clamped between a first power storage stop 18, here for example in the form of a shoulder which is fixedly attached to the first lever 11 and moves with the first lever 11, and a second power storage stop 19 which is fixedly mounted on the frame 8. Since the coil spring 2 is now arranged in the region of the first lever, the frame 8 can be made correspondingly smaller. The arrangement and effective direction of the holding device 3 and the return divider 6 is approximately parallel to the direction of the first lever II. The second lever 12 preferably has a transverse arm 25, on which the second part 5 is arranged. The cross boom 25 increases the knee. Again, the second part 5 is located at the knee. As a result, the overall space of the actuator is reduced.
Bezugszeichen reference numeral
1 Elektromechanischer Betätiger, überführbar zwischen Bereitschaftszustand, 1 electromechanical actuator, convertible between ready state,
Auslösezustand und Rückholphase Tripping condition and return phase
2 Kraftspeicher, überführbar zwischen Bereitschaftsstellung und Auslösestellung 2 energy storage, transferable between ready position and release position
3 Halteeinrichtung, überführbar zwischen Bereitschaftsstellung, Auslösestellung und Rückholstellung 3 holding device, convertible between ready position, release position and return position
4 Elektromagnet, überführbar zwischen Bereitschaftsstellung und Rückholstellung 4 electromagnet, convertible between ready position and return position
5 Ankerplatte, überführbar zwischen Bereitschaftsstellung und Auslösestellung5 anchor plate, convertible between ready position and release position
6 Rücksteiler, überführbar zwischen Bereitschaftsstellung und Rückholstellung6 back dividers, convertible between ready position and return position
7 Verbinder, überführbar zwischen Bereitschaftsstellung und Auslösestellung7 connectors, convertible between ready position and release position
8 Rahmen 8 frames
9 Bremse 9 brake
10 Kniehebelanordnung, überführbar zwischen Bereitschaftsstellung und Auslösestellu 10 toggle assembly, convertible between ready position and release
11 erster Hebel 11 first lever
12 zweiter Hebel 12 second lever
13 Verbindungsgelenk 13 connecting joint
14 erster Stützpunkt 14 first base
15 zweiter Stützpunkt 15 second base
16 Führungsschieber 16 guide slides
17 Führungskulisse 17 guidance course
18 erster Kraftspeicheranschlag am Verbinder 18 first power storage stop on the connector
19 zweiter Kraftspeicheranschlag am Rahmen 19 second power storage stop on the frame
20 Auslöseanschlag am Rahmen 20 trigger stop on the frame
21 Aufzug 21 elevator
22 Fahrkorb 22 car
23 Aufzugsschacht 23 elevator shaft
24 Führungsschiene 24 guide rail
25 Querausleger am zweiten Hebel 25 cross arm on the second lever
α Kniewinkel α knee angle
F2 Betätigungskraft, bereitgestellt durch Kraftspeicher 2 F 2 actuating force, provided by energy storage 2
F3 Haltekraft, bereitgestellt durch Halteeinrichtung 3 F 3 holding force, provided by holding device. 3
F3| Bereitschaftshaltekraft Rückholhaltekraft maximal bereitgestellte Rückholhaltekraft F 3 | Willingness holding force Return holding force maximally provided return holding force
Bereitschaftszustand standby
Auslösezustand triggering state
Rückholphase recovery phase
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016218635.3A DE102016218635A1 (en) | 2016-09-28 | 2016-09-28 | Electromechanical actuator for actuating a brake of an elevator installation |
| PCT/EP2017/074507 WO2018060251A1 (en) | 2016-09-28 | 2017-09-27 | Electromechanical actuator for actuating a brake of a lift installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3519339A1 true EP3519339A1 (en) | 2019-08-07 |
| EP3519339B1 EP3519339B1 (en) | 2021-10-27 |
Family
ID=60083932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17784204.4A Active EP3519339B1 (en) | 2016-09-28 | 2017-09-27 | Electromechanical actuator for actuating a brake of a lift installation |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3519339B1 (en) |
| CN (1) | CN109789995B (en) |
| DE (1) | DE102016218635A1 (en) |
| ES (1) | ES2904327T3 (en) |
| WO (1) | WO2018060251A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4177207A1 (en) * | 2021-11-04 | 2023-05-10 | Otis Elevator Company | Frictionless electronic safety actuator |
| US11975945B1 (en) | 2022-11-28 | 2024-05-07 | Otis Elevator Company | Frictionless safety brake actuator |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018219259A1 (en) | 2018-11-12 | 2020-05-14 | Thyssenkrupp Ag | Electromechanical actuator for actuating a brake of an elevator system |
| WO2020160744A1 (en) | 2019-02-04 | 2020-08-13 | Thyssenkrupp Elevator Innovation And Operations Ag | Elevator system |
| DE102020203525A1 (en) | 2020-03-19 | 2021-09-23 | Thyssenkrupp Elevator Innovation And Operations Ag | Method for checking a safety gear for an elevator |
| DE102020115998A1 (en) | 2020-06-17 | 2021-12-23 | Tk Elevator Innovation And Operations Gmbh | Elevator system |
| EP4321466A1 (en) * | 2022-08-10 | 2024-02-14 | Otis Elevator Company | Frictionless electronic safety actuator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1226439A (en) * | 1968-12-09 | 1971-03-31 | ||
| JP4410248B2 (en) * | 2004-03-15 | 2010-02-03 | 三菱電機株式会社 | Elevator braking device |
| KR101997945B1 (en) * | 2011-11-29 | 2019-07-08 | 인벤티오 아게 | Safety brake with resetting means |
| WO2013092239A1 (en) | 2011-12-21 | 2013-06-27 | Inventio Ag | Actuator for lift brake |
| WO2014075954A1 (en) | 2012-11-13 | 2014-05-22 | Inventio Ag | Lift with a safety brake |
| CN202967792U (en) * | 2012-12-04 | 2013-06-05 | 江阴市星联建筑机械厂 | Manual and automatic integral type double-protection safety layer parking device |
-
2016
- 2016-09-28 DE DE102016218635.3A patent/DE102016218635A1/en not_active Ceased
-
2017
- 2017-09-27 ES ES17784204T patent/ES2904327T3/en active Active
- 2017-09-27 CN CN201780059790.2A patent/CN109789995B/en active Active
- 2017-09-27 EP EP17784204.4A patent/EP3519339B1/en active Active
- 2017-09-27 WO PCT/EP2017/074507 patent/WO2018060251A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4177207A1 (en) * | 2021-11-04 | 2023-05-10 | Otis Elevator Company | Frictionless electronic safety actuator |
| US11858781B2 (en) | 2021-11-04 | 2024-01-02 | Otis Elevator Company | Frictionless electronic safety actuator |
| US11975945B1 (en) | 2022-11-28 | 2024-05-07 | Otis Elevator Company | Frictionless safety brake actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109789995A (en) | 2019-05-21 |
| CN109789995B (en) | 2021-04-30 |
| WO2018060251A1 (en) | 2018-04-05 |
| EP3519339B1 (en) | 2021-10-27 |
| ES2904327T3 (en) | 2022-04-04 |
| DE102016218635A1 (en) | 2018-03-29 |
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