EP1528028A2 - Brake for an elevator - Google Patents

Brake for an elevator Download PDF

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Publication number
EP1528028A2
EP1528028A2 EP04024701A EP04024701A EP1528028A2 EP 1528028 A2 EP1528028 A2 EP 1528028A2 EP 04024701 A EP04024701 A EP 04024701A EP 04024701 A EP04024701 A EP 04024701A EP 1528028 A2 EP1528028 A2 EP 1528028A2
Authority
EP
European Patent Office
Prior art keywords
brake
pad
actuator
active
compression spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04024701A
Other languages
German (de)
French (fr)
Other versions
EP1528028A3 (en
EP1528028B1 (en
Inventor
Daniel Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
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Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP04024701A priority Critical patent/EP1528028B1/en
Priority to SI200431446T priority patent/SI1528028T1/en
Publication of EP1528028A2 publication Critical patent/EP1528028A2/en
Publication of EP1528028A3 publication Critical patent/EP1528028A3/en
Application granted granted Critical
Publication of EP1528028B1 publication Critical patent/EP1528028B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/30—Operating devices electrical

Definitions

  • the invention relates to a brake for a lift, the consists of two brake halves, each brake half a Compression spring for activation of the brake and an actuator for Ventilation of the brake is provided and wherein compression spring and Actuator act on at least one active brake pad, the with deactivated actuator on a braking surface a Braking force generated.
  • a disadvantage of the known device is that the brake during normal operation and when one fails Brake half generates different braking torques.
  • the brake known produces a brake half the necessary Braking torque, or both brake halves together generate the double braking torque, which during normal operation for sliding the ropes on the traction sheave can lead.
  • the coat is stressed too much or worn out.
  • a disadvantage of the known device is that in the event of a spring break or if one of the brake pads fails Brake fails.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1 solves the task to avoid the disadvantages of the known device and to create a brake that is operational as well having safety-optimized properties.
  • the advantages achieved by the invention are in essential to see that the necessary Braking torque is maintained and that the for Elevator drives necessary, double redundancy anyway is guaranteed.
  • the redundancy is retained even at Spring break or if there is no brake pad. From two independent halves brake that produces for the normal operation necessary braking torque. If one fails Brake half generates the inventive brake anyway the necessary braking torque. In case of failure, the Passengers less exposed to heavy loads and the Lift mechanically less stressed. With the gentler Delay will also be unwanted triggers of the Safety gear due to the inertia of the Limiter rope avoided. Emerge at emergency stop especially in elevator systems with large Traction reserves no excessive delays, what again the mechanics spare and a slipping of the ropes up the traction sheave avoids. The pulse generator of the Motor shaft derived cabin position remains for the Control received correctly.
  • Fig. 1 shows a schematic representation of brake 1 according to the invention during normal operation.
  • the brake 1 consists of a cross-sectionally U-shaped housing 2, wherein a leg of the Us a brake half 3 corresponds.
  • the brake halves 3 are identical.
  • Each brake half 3 is at least one active brake pad 4 and at least an additional or passive brake pad 5 is provided.
  • the additional Brake pad 5 as explained below be omitted.
  • the additional or passive brake pad 5 is at the Leg inner side of the housing 2 is arranged.
  • the active one Brake pad 4 is by a spring force of a compression spring. 6 applied. Not shown is one below mentioned actuator, which in the activated state of Counteracts spring force.
  • the housing 2 is at a first Axis 7 floating.
  • the active brake pads 4 act on one serving as a braking surface 8 brake disc 8 ', the part a traction sheave 9 is.
  • rotating traction sheave 9 guided ropes 12 move an elevator car, not shown, or a not shown counterweight of a lift.
  • the inventive brake 1 can also at the Elevator car or be arranged on the counterweight, wherein as a braking surface, for example, the free leg of a Guide rail is used.
  • the brake 1 is self-centering and thanks to the floating bearing on the first axis 7 to one with a symbolized center position 13 move.
  • the possible direction of movement of the brake 1 is an arrow P1 or symbolized by an arrow P2.
  • Fig. 2 shows a schematic representation of according to the invention brake 1 in case of failure of one Brake half 3.
  • brake 1 With example broken spring 6th or omission of the active brake pad 4 is the one Brake half 3 ineffective.
  • the spring force of the compression spring. 6 the other brake half 3 moves the housing 2 in with symbolized direction arrow P1, where the passive Brake pad 5 of a brake half 3 on the brake disc 8 ' comes to the concern.
  • the initial position of the brake 1 is with shown broken line.
  • the braking force remains in normal operation at Failure of a brake half 3 received.
  • Fig. 3 shows a side view and a brake half 3 of brake according to the invention 1.
  • the active brake pad 4 is arranged centrally, each brake pad side is an additional or passive brake lining 5 arranged on the housing 2 intended.
  • Fig. 4 is a section along the line A-A of Fig. 3rd shown.
  • the first axis 7 of the brake 1 is at a Console 14 of the drive unit or the elevator car or arranged the counterweight.
  • the brake 1 is in shown ventilated state and is floating, where it can move along the first axis 7.
  • the Compression spring 6 is supported at one end on the housing 2 and at the other end to an anchor plate 15 of a brake magnet sixteenth Brake magnet 16 and armature plate 15 form the above-mentioned Actuator.
  • the brake 1 is released, wherein the brake magnet 16 is activated and the active Brake pad 4 bearing armature plate 15 is tightened and wherein the force of the brake magnet 16 of the spring force of Compressive spring 6 counteracts.
  • Fig. 5 shows a plan view of the brake according to the invention 1, wherein the one brake half 3 is cut open. The Brake 1 is shown ventilated. If one fails Brake half 3 act the two additional or passive Brake pads 5 instead of the active brake pad 4.
  • the additional Brake pad 5 are omitted.
  • the active brake pad 4 as additional Brake lining, which then on a stop 2.1 as shown in Fig. 1 and Fig. 2 is shown symbolically shown.
  • the brake magnet 16 acts as a stop.
  • This brake variant has redundancy at spring break and continues to work with the necessary braking torque. If the entire brake half 3 fails, for example at Elimination of the active brake pad 4, the brake fails 1.
  • the brake 1 can, for example, also on the elevator car or be arranged on the counterweight and, for example, on act on the free leg of a guide rail. In In this case, takes the free leg of the guide rail the place of the brake disc 8 'a. The brake pads are then on opposite flanks of the guide rail, as described in detail in EP 0 648 703 B1.
  • the braking torque of the brake thus remains in normal operation and in case of failure of a brake half 3 equal, provided r remains constant and the friction on the axis 7 is too to neglect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The brake (1) has a housing (2) that is formed with a U-shaped cross-section, and two brake halves (3), each with active and passive brake linings (4, 5). A compression spring (6) activates the active brake lining and produces braking force against a brake surface when an actuator is deactivated. The passive brake lining is activated when one of the brake halves fails. An independent claim is also included for a method of operating a brake for a lift.

Description

Die Erfindung betrifft eine Bremse für einen Aufzug, die aus zwei Bremshälften besteht, wobei je Bremshälfte eine Druckfeder zur Aktivierung der Bremse und ein Aktuator zur Lüftung der Bremse vorgesehen ist und wobei Druckfeder und Aktuator auf mindestens einen aktiven Bremsbelag einwirken, der bei deaktiviertem Aktuator an einer Bremsfläche eine Bremskraft erzeugt.The invention relates to a brake for a lift, the consists of two brake halves, each brake half a Compression spring for activation of the brake and an actuator for Ventilation of the brake is provided and wherein compression spring and Actuator act on at least one active brake pad, the with deactivated actuator on a braking surface a Braking force generated.

Aus der Patentschrift DE 41 06 595 ist eine Bremsvorrichtung für einen mittels Linearmotor antreibbaren Förderkorb bekannt geworden, wobei Kraftmessdosen ein Signal zur Lüftung erzeugen. Am Förderkorb angeordnete Bremsen umfassen die im Förderschacht angeordneten Führungsschienen, wobei je Führungsschiene eine Bremse vorgesehen ist. Je Schenkelseite der Führungsschiene weist die Bremse eine Bremsbacke auf. Je Bremsbacke erzeugen Betätigungsglieder mittels der Bremsbacke auf der Führungsschiene Bremskräfte, wobei die Wirkung einer Feder die Bremse aktiviert und ein hydraulischer Zylinder der Federkraft entgegenwirkt und die Bremse lüftet.From the patent DE 41 06 595 is a Braking device for a linear motor driven Förderkorb become known, with load cells a Generate signal for ventilation. On the conveyor basket arranged Brakes include those arranged in the conveyor shaft Guide rails, each guide rail a brake is provided. Each leg side of the guide rail has the brake on a brake shoe. Create each brake shoe Actuators by means of the brake shoe on the Guide rail braking forces, the effect of a spring the brake is activated and a hydraulic cylinder the Counteracts spring force and releases the brake.

Ein Nachteil der bekannten Einrichtung liegt darin, dass die Bremse bei Normalbetrieb und bei Ausfall einer Bremshälfte unterschiedliche Bremsmomente erzeugt. Bei der bekannten Bremse erzeugt eine Bremshälfte das notwendige Bremsmoment, bzw. beide Bremshälften zusammen erzeugen das doppelte Bremsmoment, was bei Normalbetrieb zum Rutschen der Seile auf der Treibscheibe führen kann. Bei einem Stahlseil werden dadurch die Litzen und bei einem Kunstfaserseil wird der Mantel zu sehr beansprucht bzw. übermässig abgenutzt.A disadvantage of the known device is that the brake during normal operation and when one fails Brake half generates different braking torques. In the brake known produces a brake half the necessary Braking torque, or both brake halves together generate the double braking torque, which during normal operation for sliding the ropes on the traction sheave can lead. At a Steel cord thereby become the strands and at one Synthetic fiber rope, the coat is stressed too much or worn out.

Aus der Schrift JP 04133988 ist ein Aufzugsantrieb mit einer Scheibenbremse bekannt geworden, deren Bremssattel schwimmend gelagert ist. Die Bremse wird mittels einer Druckfeder betätigt und mittels eines entgegen der Druckfeder wirkenden Aktuators gelüftet. Bei gelüfteter Bremse wird der Bremssattel mittels einer weiteren Druckfeder in die Ausgangslage bewegt.From the document JP 04133988 is an elevator drive with a disc brake has become known, the caliper is floating. The brake is by means of a Pressed spring and by means of a counter to Compressed spring acting actuator ventilated. When ventilated Brake is the caliper by means of another Pressure spring moved to the starting position.

Ein Nachteil der bekannten Einrichtung liegt darin, dass bei Federbruch oder bei Wegfall eines Bremsbelages die Bremse versagt.A disadvantage of the known device is that in the event of a spring break or if one of the brake pads fails Brake fails.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in Anspruch 1 gekennzeichnet ist, löst die Aufgabe, die Nachteile der bekannten Einrichtung zu vermeiden und eine Bremse zu schaffen, die betriebstechnisch wie auch sicherheitstechnisch optimierte Eigenschaften aufweist.The invention aims to remedy this situation. The invention, as characterized in claim 1 solves the task to avoid the disadvantages of the known device and to create a brake that is operational as well having safety-optimized properties.

Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Patentansprüchen angegeben.Advantageous developments of the invention are in the specified dependent claims.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass das notwendige Bremsmoment eingehalten wird und dass die für Aufzugsantriebe notwendige, zweifache Redundanz trotzdem gewährleistet ist. Die Redundanz bleibt erhalten auch bei Federbruch oder bei Wegfall eines Bremsbelages. Die aus zwei unabhängigen Hälften bestehende Bremse erzeugt das für den Normalbetrieb notwendige Bremsmoment. Bei Ausfall einer Bremshälfte erzeugt die erfindungsgemässe Bremse trotzdem das notwendige Bremsmoment. Im Störfall werden die Passagiere weniger grossen Belastungen ausgesetzt und der Aufzug mechanisch weniger beansprucht. Mit der sanfteren Verzögerung werden auch ungewollte Auslöser der Fangvorrichtung aufgrund der Massenträgheit des Begrenzerseils vermieden. Bei Notstopp entstehen insbesondere bei Aufzugsanlagen mit grossen Traktionsreserven keine übermässigen Verzögerungen, was wiederum die Mechanik schont und ein Rutschen der Seile auf der Treibscheibe vermeidet. Die vom Impulsgenerator der Motorwelle abgeleitete Kabinenposition bleibt für die Steuerung korrekt erhalten.The advantages achieved by the invention are in essential to see that the necessary Braking torque is maintained and that the for Elevator drives necessary, double redundancy anyway is guaranteed. The redundancy is retained even at Spring break or if there is no brake pad. From two independent halves brake that produces for the normal operation necessary braking torque. If one fails Brake half generates the inventive brake anyway the necessary braking torque. In case of failure, the Passengers less exposed to heavy loads and the Lift mechanically less stressed. With the gentler Delay will also be unwanted triggers of the Safety gear due to the inertia of the Limiter rope avoided. Emerge at emergency stop especially in elevator systems with large Traction reserves no excessive delays, what again the mechanics spare and a slipping of the ropes up the traction sheave avoids. The pulse generator of the Motor shaft derived cabin position remains for the Control received correctly.

Anhand der beiliegenden Figuren wird die vorliegende Erfindung näher erläutert.With reference to the accompanying figures, the present Invention explained in more detail.

Es zeigen:

  • Fig. 1
    eine schematische Darstellung der erfindungsgemässen Bremse bei Normalbetrieb,
  • Fig. 2
    eine schematische Darstellung der erfindungsgemässen Bremse bei einem Federbruch der einen Bremshälfte,
  • Fig. 3
    eine Seitenansicht der erfindungsgemässen Bremse,
  • Fig. 4
    einen Schnitt entlang der Linie A-A der Fig. 3 und
  • Fig. 5
    eine Draufsicht der erfindungsgemässen Bremse.
    • Show it:
  • Fig. 1
    a schematic representation of the inventive brake in normal operation,
  • Fig. 2
    a schematic representation of the inventive brake in a spring break of a brake half,
  • Fig. 3
    a side view of the inventive brake,
  • Fig. 4
    a section along the line AA of Fig. 3 and
  • Fig. 5
    a plan view of the inventive brake.

    • Fig. 1 zeigt eine schematische Darstellung der erfindungsgemässen Bremse 1 bei Normalbetrieb. Die Bremse 1 besteht aus einem im Querschnitt U-förmigen Gehäuse 2, wobei ein Schenkel des Us einer Bremshälfte 3 entspricht. Die Bremshälften 3 sind identisch aufgebaut. Je Bremshälfte 3 ist mindestens ein aktiver Bremsbelag 4 und mindestens ein zusätzlicher bzw. passiver Bremsbelag 5 vorgesehen. In einer weiteren Ausführungsvariante kann der zusätzliche Bremsbelag 5 wie weiter unten erläutert weggelassen werden. Der zusätzliche bzw. passive Bremsbelag 5 ist an der Schenkelinnenseite des Gehäuses 2 angeordnet. Der aktive Bremsbelag 4 wird von einer Federkraft einer Druckfeder 6 beaufschlagt. Nicht dargestellt ist ein weiter unten erwähnter Aktuator, der im aktivierten Zustand der Federkraft entgegenwirkt. Das Gehäuse 2 ist an einer ersten Achse 7 schwimmend gelagert.Fig. 1 shows a schematic representation of brake 1 according to the invention during normal operation. The brake 1 consists of a cross-sectionally U-shaped housing 2, wherein a leg of the Us a brake half 3 corresponds. The brake halves 3 are identical. Each brake half 3 is at least one active brake pad 4 and at least an additional or passive brake pad 5 is provided. In a further embodiment, the additional Brake pad 5 as explained below be omitted. The additional or passive brake pad 5 is at the Leg inner side of the housing 2 is arranged. The active one Brake pad 4 is by a spring force of a compression spring. 6 applied. Not shown is one below mentioned actuator, which in the activated state of Counteracts spring force. The housing 2 is at a first Axis 7 floating.

    Bei Normalbetrieb wirken die aktiven Bremsbeläge 4 auf eine als Bremsfläche 8 dienende Bremsscheibe 8' ein, die Teil einer Treibscheibe 9 ist. In Seilrillen 10 der um eine zweite Achse 11 rotierenden Treibscheibe 9 geführte Seile 12 bewegen eine nicht dargestellte Aufzugskabine bzw. ein nicht dargestelltes Gegengewicht eines Aufzuges.In normal operation, the active brake pads 4 act on one serving as a braking surface 8 brake disc 8 ', the part a traction sheave 9 is. In rope grooves 10 of a second axis 11 rotating traction sheave 9 guided ropes 12 move an elevator car, not shown, or a not shown counterweight of a lift.

    Die erfindungsgemässe Bremse 1 kann auch an der Aufzugskabine oder am Gegengewicht angeordnet sein, wobei als Bremsfläche beispielsweise der freie Schenkel einer Führungsschiene dient.The inventive brake 1 can also at the Elevator car or be arranged on the counterweight, wherein as a braking surface, for example, the free leg of a Guide rail is used.

    Die Bremse 1 ist selbstzentrierend und kann sich dank der schwimmenden Lagerung an der ersten Achse 7 um eine mit einem Punkt symbolisierte Mittellage 13 bewegen. Die mögliche Bewegungsrichtung der Bremse 1 ist mit einem Pfeil P1 bzw. mit einem Pfeil P2 symbolisiert.The brake 1 is self-centering and thanks to the floating bearing on the first axis 7 to one with a symbolized center position 13 move. The possible direction of movement of the brake 1 is an arrow P1 or symbolized by an arrow P2.

    Fig. 2 zeigt eine schematische Darstellung der erfindungsgemässen Bremse 1 bei Ausfall der einen Bremshälfte 3. Mit beispielsweise gebrochener Druckfeder 6 oder Wegfall des aktiven Bremsbelages 4 wird die eine Bremshälfte 3 wirkungslos. Die Federkraft der Druckfeder 6 der anderen Bremshälfte 3 bewegt das Gehäuse 2 in die mit dem Pfeil P1 symbolisierte Richtung, wobei der passive Bremsbelag 5 der einen Bremshälfte 3 an der Bremsscheibe 8' zum Anliegen kommt. Die Ausgangslage der Bremse 1 ist mit unterbrochener Linie dargestellt. Wie weiter unten erläutert, bleibt die Bremskraft bei Normalbetrieb auch bei Ausfall einer Bremshälfte 3 erhalten.Fig. 2 shows a schematic representation of according to the invention brake 1 in case of failure of one Brake half 3. With example broken spring 6th or omission of the active brake pad 4 is the one Brake half 3 ineffective. The spring force of the compression spring. 6 the other brake half 3 moves the housing 2 in with symbolized direction arrow P1, where the passive Brake pad 5 of a brake half 3 on the brake disc 8 ' comes to the concern. The initial position of the brake 1 is with shown broken line. As below explained, the braking force remains in normal operation at Failure of a brake half 3 received.

    Fig. 3 zeigt eine Seitenansicht bzw. eine Bremshälfte 3 der erfindungsgemässen Bremse 1. Der aktive Bremsbelag 4 ist mittig angeordnet, je Bremsbelagseite ist ein zusätzlicher bzw. passiver, am Gehäuse 2 angeordneter Bremsbelag 5 vorgesehen.Fig. 3 shows a side view and a brake half 3 of brake according to the invention 1. The active brake pad 4 is arranged centrally, each brake pad side is an additional or passive brake lining 5 arranged on the housing 2 intended.

    In Fig. 4 ist ein Schnitt entlang der Linie A-A der Fig. 3 gezeigt. Die erste Achse 7 der Bremse 1 ist an einer Konsole 14 der Antriebseinheit oder der Aufzugskabine oder des Gegengewichtes angeordnet. Die Bremse 1 ist in gelüftetem Zustand gezeigt und ist schwimmend gelagert, wobei sie sich entlang der ersten Achse 7 bewegen kann. Die Druckfeder 6 stützt sich einenends am Gehäuse 2 ab und anderenends an einer Ankerplatte 15 eines Bremsmagneten 16. Bremsmagnet 16 und Ankerplatte 15 bilden den oben erwähnten Aktuator. Im gezeigten Zustand ist die Bremse 1 gelüftet, wobei der Bremsmagnet 16 aktiviert und die den aktiven Bremsbelag 4 tragende Ankerplatte 15 angezogen ist und wobei die Kraft des Bremsmagneten 16 der Federkraft der Druckfeder 6 entgegenwirkt. Bei deaktiviertem Bremsmagnet 16 presst die Druckfeder 6 die Ankerplatte 15 mit dem aktiven Bremsbelag 4 gegen die Bremsscheibe 8', wobei der aktive Bremsbelag 4 die notwendige Bremskraft erzeugt. Falls beide Bremshälften 3 gleich arbeiten, positioniert sich die Bremse 1 in der Mittellage 13. Bei ungleich arbeitenden Bremshälften 3 verschiebt sich die Bremse 1 dank der schwimmenden Lagerung an der ersten Achse 7 in der einen oder anderen Richtung P1,P2.In Fig. 4 is a section along the line A-A of Fig. 3rd shown. The first axis 7 of the brake 1 is at a Console 14 of the drive unit or the elevator car or arranged the counterweight. The brake 1 is in shown ventilated state and is floating, where it can move along the first axis 7. The Compression spring 6 is supported at one end on the housing 2 and at the other end to an anchor plate 15 of a brake magnet sixteenth Brake magnet 16 and armature plate 15 form the above-mentioned Actuator. In the state shown, the brake 1 is released, wherein the brake magnet 16 is activated and the active Brake pad 4 bearing armature plate 15 is tightened and wherein the force of the brake magnet 16 of the spring force of Compressive spring 6 counteracts. With deactivated brake magnet 16 presses the compression spring 6, the anchor plate 15 with the active brake pad 4 against the brake disc 8 ', wherein the active brake pad 4 generates the necessary braking force. If both brake halves 3 work the same, positioned the brake 1 in the middle position 13. At unequal working brake halves 3 shifts the brake. 1 thanks to the floating bearing on the first axis 7 in the one or the other direction P1, P2.

    Fig. 5 zeigt eine Draufsicht der erfindungsgemässen Bremse 1, wobei die eine Bremshälfte 3 aufgeschnitten ist. Die Bremse 1 ist gelüftet gezeigt. Bei Ausfall einer Bremshälfte 3 wirken die beiden zusätzlichen bzw. passiven Bremsbeläge 5 anstelle des aktiven Bremsbelages 4.Fig. 5 shows a plan view of the brake according to the invention 1, wherein the one brake half 3 is cut open. The Brake 1 is shown ventilated. If one fails Brake half 3 act the two additional or passive Brake pads 5 instead of the active brake pad 4.

    In einer weiteren Ausführungsvariante kann der zusätzliche Bremsbelag 5 weggelassen werden. Bei Federbruch wirkt in diesem Fall der aktive Bremsbelag 4 als zusätzlicher Bremsbelag, der dann an einem Anschlag 2.1 wie in Fig. 1 und Fig. 2 symbolisch gezeigt ansteht. Wie in Fig. 4 und Fig. 5 gezeigt, wirkt der Bremsmagnet 16 als Anschlag. Diese Bremsvariante hat bei Federbruch Redundanz und arbeitet weiterhin mit dem notwendigen Bremsmoment. Falls die gesamte Bremshälfte 3 ausfällt, beispielsweise bei Wegfall des aktiven Bremsbelages 4, versagt die Bremse 1.In a further embodiment, the additional Brake pad 5 are omitted. At spring break acts in In this case, the active brake pad 4 as additional Brake lining, which then on a stop 2.1 as shown in Fig. 1 and Fig. 2 is shown symbolically shown. As in Fig. 4 and Fig. 5, the brake magnet 16 acts as a stop. This brake variant has redundancy at spring break and continues to work with the necessary braking torque. If the entire brake half 3 fails, for example at Elimination of the active brake pad 4, the brake fails 1.

    Die Bremse 1 kann beispielsweise auch an der Aufzugskabine oder am Gegengewicht angeordnet sein und beispielsweise auf den freien Schenkel einer Führungsschiene einwirken. In diesem Fall nimmt der freie Schenkel der Führungsschiene den Platz der Bremsscheibe 8' ein. Die Bremsbeläge liegen dann an gegenüberliegenden Flanken der Führungsschiene an, wie in EP 0 648 703 B1 ausführlich beschrieben.The brake 1 can, for example, also on the elevator car or be arranged on the counterweight and, for example, on act on the free leg of a guide rail. In In this case, takes the free leg of the guide rail the place of the brake disc 8 'a. The brake pads are then on opposite flanks of the guide rail, as described in detail in EP 0 648 703 B1.

    Das Bremsmoment bei Normalbetrieb berechnet sich nach folgender Formel: Mn = 2 * Fn * µ * r

  • Mn: Bremsmoment bei Normalbetrieb
  • Fn: Auf den aktiven Bremsbelag 4 wirkende Bremskraft (Druckfeder 6)
  • µ: Reibungskoeffizient zwischen aktivem Bremsbelag 4 und Bremsscheibe 8'
  • r: Mittlerer Abstand der Bremse 1 vom Mittelpunkt der zweiten Achse 11
    • The braking torque during normal operation is calculated according to the following formula: M n = 2 * F n * μ * r
  • M n : braking torque during normal operation
  • F n : braking force acting on the active brake pad 4 (compression spring 6)
  • μ: friction coefficient between active brake pad 4 and brake disk 8 '
  • r: mean distance of the brake 1 from the center of the second axis 11

    • Das Bremsmoment bei Ausfall einer Bremshälfte 3 berechnet sich nach folgender Formel: Mf = (Fn + Fp) * µ * r

  • Mf: Bremsmoment bei Ausfall einer Bremshälfte 3
  • Fn: Auf den aktiven Bremsbelag 4 wirkende Bremskraft (Druckfeder 6)
  • Fp: Auf den zusätzlichen bzw. passiven Bremsbelag 5 wirkende Bremskraft (Druckfeder 6)
  • µ: Reibungskoeffizient zwischen aktivem/passivem Bremsbelag 4/5 und Bremsscheibe 8'
  • r: Mittlerer Abstand der Bremse 1 vom Mittelpunkt der zweiten Achse 11
    • The brake torque in case of failure of a brake half 3 is calculated according to the following formula: M f = (F n + F p ) * μ * r
  • M f : braking torque if one brake half 3 fails
  • F n : braking force acting on the active brake pad 4 (compression spring 6)
  • F p : braking force acting on the additional or passive brake pad 5 (compression spring 6)
  • μ: friction coefficient between active / passive brake lining 4/5 and brake disc 8 '
  • r: mean distance of the brake 1 from the center of the second axis 11

    • Mit Fn = Fp wird Mn = Mf With F n = F p , M n = M f

    Das Bremsmoment der Bremse bleibt somit bei Normalbetrieb und bei Ausfall einer Bremshälfte 3 gleich, vorausgesetzt r bleibt konstant und die Reibung an der Achse 7 ist zu vernachlässigen.The braking torque of the brake thus remains in normal operation and in case of failure of a brake half 3 equal, provided r remains constant and the friction on the axis 7 is too to neglect.

    Claims (10)

    Bremse (1) für einen Aufzug, die aus zwei Bremshälften (3) besteht, wobei je Bremshälfte (3) eine Druckfeder (6) zur Aktivierung der Bremse (1) und ein Aktuator (15,16) zur Lüftung der Bremse (1) vorgesehen ist und wobei Druckfeder (6) und Aktuator auf mindestens einen aktiven Bremsbelag (4) einwirken, der bei deaktiviertem Aktuator (15,16) an einer Bremsfläche (8) eine Bremskraft erzeugt,
    dadurch gekennzeichnet, dass die Bremse (1) senkrecht zur Bremsfläche (8) schwimmend gelagert ist.    Brake (1) for an elevator consisting of two brake halves (3), each brake half (3) having a compression spring (6) for activating the brake (1) and an actuator (15, 16) for ventilating the brake (1) is provided and wherein compression spring (6) and actuator act on at least one active brake pad (4) which generates a braking force on a braking surface (8) when the actuator (15, 16) is deactivated,
    characterized in that the brake (1) is mounted floatingly perpendicular to the braking surface (8).         Bremse nach Anspruch 1,
    dadurch gekennzeichnet, dass bei einseitigem Ausfall der Bremse (1) auf der betroffenen Bremshälfte (3) ein passiv wirkender Bremsbelag (4,5) vorgesehen ist, der durch die Druckfeder (6) der anderen Bremshälfte (3) an die Bremsfläche (8) andrückbar ist.    Brake according to claim 1,
    characterized in that in one-sided failure of the brake (1) on the affected brake half (3) a passively acting brake pad (4,5) is provided by the compression spring (6) of the other brake half (3) to the braking surface (8) is pressable.         Bremse nach Anspruch 1,
    dadurch gekennzeichnet, dass je Bremshälfte (3) mindestens ein zusätzlicher Bremsbelag (5) vorgesehen ist, der bei Ausfall einer Bremshälfte (3) anstelle des aktiven Bremsbelages (4) der ausgefallenen Bremshälfte (3) wirkt.    Brake according to claim 1,
    characterized in that each brake half (3) at least one additional brake pad (5) is provided which acts in case of failure of a brake half (3) instead of the active brake pad (4) of the failed brake half (3).         Bremse nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, dass die Bremsbelagträger (15) im unbetätigtem Zustand an einem Anschlag (2.1,16) anliegen und der zugehörige Bremsbelag (4) damit den passiven Bremsbelag bildet.     Brake according to one of claims 1 or 2,
    characterized in that the brake pad carrier (15) in the unactuated state against a stop (2.1,16) and the associated brake pad (4) thus forms the passive brake pad.         Bremse nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass je Bremshälfte (3) ein zusätzlicher passiver Bremsbelag (5) vorgesehen ist.    Brake according to one of the preceding claims,
    characterized in that each brake half (3) an additional passive brake pad (5) is provided.         Bremse nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass der Aktuator ein Bremsmagnet (16) mit einer Ankerplatte (15) ist, wobei der aktive Bremsbelag (49 an der Ankerplatte (15) angeordnet ist.    Brake according to one of the preceding claims,
    characterized in that the actuator is a brake magnet (16) with an armature plate (15), wherein the active brake pad (49) is arranged on the armature plate (15).         Bremse nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Bremse (1) an der Antriebseinheit angeordnet ist.    Brake according to one of the preceding claims,
    characterized in that the brake (1) is arranged on the drive unit.         Bremse nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass die Bremse (1) an der Aufzugskabine oder am Gegengewicht angeordnet ist.    Brake according to one of the preceding claims,
    characterized in that the brake (1) is arranged on the elevator car or on the counterweight.         Bremse nach Anspruch 8,
    dadurch gekennzeichnet, dass die Führungsschienen eines Aufzuges als Bremsfläche 8 dienen.     Brake according to claim 8,
    characterized in that the guide rails of a lift serve as a braking surface 8.         Verfahren zum Betreiben einer Bremse für einen Aufzug, die aus zwei Bremshälften (3) besteht, wobei je Bremshälfte (3) eine Druckfeder (6) zur Aktivierung der Bremse (1) und ein Aktuator (15,16) zur Lüftung der Bremse (1) vorgesehen ist und wobei Druckfeder (6) und Aktuator auf mindestens einen aktiven Bremsbelag (4) einwirken, der bei deaktiviertem Aktuator (15,16) an einer Bremsfläche (8) eine Bremskraft erzeugt,
    dadurch gekennzeichnet, dass bei Normalbetrieb und bei Ausfall mindestens der Druckfeder (6) einer Bremshälfte (3) dieselbe Bremskraft erzeugt wird.    Method for operating a brake for an elevator, which consists of two brake halves (3), wherein each brake half (3) has a compression spring (6) for activating the brake (1) and an actuator (15, 16) for ventilating the brake (1 is provided and wherein pressure spring (6) and actuator act on at least one active brake pad (4) which generates a braking force on a braking surface (8) when the actuator (15, 16) is deactivated,
    characterized in that during normal operation and failure of at least the compression spring (6) of a brake half (3) the same braking force is generated.
    EP04024701A 2003-10-27 2004-10-16 Brake for an elevator Not-in-force EP1528028B1 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    EP04024701A EP1528028B1 (en) 2003-10-27 2004-10-16 Brake for an elevator
    SI200431446T SI1528028T1 (en) 2003-10-27 2004-10-16 Brake for an elevator

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    EP03405767 2003-10-27
    EP03405767 2003-10-27
    EP04024701A EP1528028B1 (en) 2003-10-27 2004-10-16 Brake for an elevator

    Publications (3)

    Publication Number Publication Date
    EP1528028A2 true EP1528028A2 (en) 2005-05-04
    EP1528028A3 EP1528028A3 (en) 2005-06-22
    EP1528028B1 EP1528028B1 (en) 2010-03-31

    Family

    ID=34424786

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04024701A Not-in-force EP1528028B1 (en) 2003-10-27 2004-10-16 Brake for an elevator

    Country Status (2)

    Country Link
    EP (1) EP1528028B1 (en)
    SI (1) SI1528028T1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20080067011A1 (en) * 2006-06-19 2008-03-20 Nicolas Gremaud Method of checking elevator braking equipment, a method for placing an elevator in operation and equipment for carrying out placing in operation
    EP1930282A1 (en) 2006-12-05 2008-06-11 Inventio Ag Braking device for holding and braking a lift cabin in a lift facility and method for holding and braking a lift facility
    DE102016110917A1 (en) * 2016-06-14 2017-12-14 NKB Technologie GmbH Lifting station and method for operating such a lifting station

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5014828A (en) * 1988-06-08 1991-05-14 Moteurs Leroy-Somer Electromagnetic brake with clamping jaws
    DE4106595A1 (en) * 1990-03-01 1991-11-28 Alphatrad Sa Lift brake for mine shaft conveyance system
    USRE36034E (en) * 1990-04-13 1999-01-12 Otis Elevator Company Disk brake for elevator

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5014828A (en) * 1988-06-08 1991-05-14 Moteurs Leroy-Somer Electromagnetic brake with clamping jaws
    DE4106595A1 (en) * 1990-03-01 1991-11-28 Alphatrad Sa Lift brake for mine shaft conveyance system
    USRE36034E (en) * 1990-04-13 1999-01-12 Otis Elevator Company Disk brake for elevator

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20080067011A1 (en) * 2006-06-19 2008-03-20 Nicolas Gremaud Method of checking elevator braking equipment, a method for placing an elevator in operation and equipment for carrying out placing in operation
    EP1930282A1 (en) 2006-12-05 2008-06-11 Inventio Ag Braking device for holding and braking a lift cabin in a lift facility and method for holding and braking a lift facility
    US8312972B2 (en) 2006-12-05 2012-11-20 Inventio Ag Brake equipment for holding and braking an elevator car in an elevator installation and a method of holding and braking an elevator installation
    DE102016110917A1 (en) * 2016-06-14 2017-12-14 NKB Technologie GmbH Lifting station and method for operating such a lifting station

    Also Published As

    Publication number Publication date
    EP1528028A3 (en) 2005-06-22
    SI1528028T1 (en) 2010-08-31
    EP1528028B1 (en) 2010-03-31

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