EP2771267A1 - Speed-limiting means for a lift - Google Patents

Speed-limiting means for a lift

Info

Publication number
EP2771267A1
EP2771267A1 EP12772332.8A EP12772332A EP2771267A1 EP 2771267 A1 EP2771267 A1 EP 2771267A1 EP 12772332 A EP12772332 A EP 12772332A EP 2771267 A1 EP2771267 A1 EP 2771267A1
Authority
EP
European Patent Office
Prior art keywords
force
speed
arm
elevator car
nose
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
EP12772332.8A
Other languages
German (de)
French (fr)
Other versions
EP2771267B1 (en
Inventor
Daniel Meierhans
Miriam HEINI
Reto Dräyer
Faruk Osmanbasic
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
Original Assignee
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 EP12772332.8A priority Critical patent/EP2771267B1/en
Publication of EP2771267A1 publication Critical patent/EP2771267A1/en
Application granted granted Critical
Publication of EP2771267B1 publication Critical patent/EP2771267B1/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
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type

Definitions

  • the proposed device relates to a speed limiter for an elevator consisting of a driven by a limiter rope sheave, which is connected to a cam wheel on which a locking ring with Sperrkranzzähnen is arranged and consisting of a pendulum lever, at one end a rolling on the cam sprocket and the other a nose dipping into the path of the ratchet teeth are provided.
  • a speed limiter which monitors the driving speed of an elevator car.
  • a pulley with a rope groove is rotatably supported by a first axis on a housing.
  • the rope groove accommodates a governor rope which maps the speed of the elevator car, the ends of the
  • Limiter rope are connected to a arranged on the elevator car safety gear.
  • a cam wheel with cam is firmly connected to the pulley.
  • a locking ring is provided at the cam wheel and a locking ring is provided at a second axis connected to the housing .
  • a two-armed pendulum lever is pivotally mounted at a second axis connected to the housing.
  • On a first arm of the pendulum lever a rotatable spherical roller is arranged, which rolls on the end face of the cam wheel.
  • the spherical roller is pressed by means of a retaining spring connected to the housing on the serving as a roller track end face.
  • the end of a second arm of the pendulum lever is formed as a pendulum nose, which dips into the path of Sperrkranzzähnen when the pendulum roller rolls over a cam.
  • the pendulum nose is lifted from the path of the Sperrkranzzähne when the
  • the pendulum lug remains immersed in the path of the ratchet teeth and blocks the pulley.
  • a disadvantage of the known device is that in the event of triggering uncontrollable forces can occur on the parts of the speed limiter, on the governor rope and on the safety gear of the elevator car.
  • the proposed object solves the problem of avoiding the disadvantages of the known device and to provide a speed limiter, which in case of tripping the
  • Safety device of the elevator car safely operated and still protects the parts involved in the triggering including speed limiter against excessive force.
  • Retaining force in the governor rope can be determined. Damage or peak loads on safety-relevant parts that are involved in triggering the safety gear, remain off. As a result, the reliability of the elevator and the safety of the users of the elevator is improved and reduces the susceptibility of the parts.
  • FIG. 1 shows:
  • a speed limiter for monitoring the speed of an elevator car
  • Fig. 1 is denoted by 1 in an elevator shaft 1.1 movable elevator car, which is connected by means of a guided over a traction sheave carrying rope with a counterweight. Traction sheave, suspension rope and counterweight are not shown.
  • a car door 1.2 closes the elevator car 1.
  • Guide rails 1.3 guide the elevator car 1 on its way. To monitor the speed of the elevator car 1 or des
  • Counterweight is provided on the pendulum lever principle speed limiter 5, wherein the movement of the elevator car 1 and the counterweight is transmitted by means of a Beskyrseiles 6 on the speed limiter 5.
  • the limiter rope 6 extends over the entire shaft height and is deflected at the lower end of the shaft by means of a guide roller 7 and tensioned by means of tension weight 7.1 and guided at the upper end of the shaft via a pulley of the speed limiter 5.
  • the ends of the Beskyrseiles 6 are fastened to a arranged on the elevator car 1 tripping mechanism 8, which actuates an arranged on the elevator car 1 safety gear 9 in case of emergency or in the event of triggering.
  • FIG. 2 shows the speed limiter 5 monitoring the driving speed of the elevator car 1.
  • the pulley 10 with a rope groove 10.1 is rotatably supported by a first axis 11 on a housing 12.
  • the rope groove 10.1 takes the speed of the
  • Elevator car 1 mapping limiter 6 wherein the ends of the governor rope 6 are connected to the arranged on the elevator car 1 safety gear 9.
  • a cam 13 with cam 13.1 is fixedly connected to the pulley 10.
  • a locking ring 14 is provided at a second axis 15 connected to the housing 12.
  • a two-armed pendulum lever 16 is pivotally mounted.
  • On a first arm 16.1 of the pendulum lever 16 a rotatable spherical roller 16.2 is arranged, which rolls on an end face 13.2 of the cam wheel.
  • the pendulum roller 16.2 is pressed by means of a connected to the housing 12 retaining spring on the serving as a roller track face 13.2.
  • a Kraftbeskyrad 16.4 is arranged, which dips into the path of Sperrkranzzähnen 14.1 when the shuttle roller 16.2 rolls over a cam 13.1.
  • Kraftbesky 16.4 is lifted from the path of the locking ring teeth 14.1 when the
  • Spool 16.2 rolls between two cams or in a Nockental 13.3. If the speed of the elevator car 1 exceeds a predetermined value, the force limiting wheel 16.4 remains immersed in the path of the locking ring gear teeth 14.1 and blocks the sheave 10.
  • a two-armed pre-switching lever 17 is pivotally mounted on the second arm 16.3 of the oscillating lever 16 and can be actuated by means of the blocking rim 14. wherein the Vorabschalthebel 17 by means of a switch 18 turns off the elevator drive and engages the drive brake.
  • Fig. 3 shows details of Vorabschalthebels 17, which has a third arm 17.1 and a fourth arm 17.2 and is pivotally mounted on a third axis 17.3 on the second arm 16.3 of the pendulum lever 16.
  • a fourth arm 17.2 disposed on the first 17.4 nose dives slightly earlier than the Kraftbeskyrrad 16.4 in the path of the Sperrkranzzähne 14.1 and is pivoted about the third axis 17.3, wherein the third arm 17.1 actuates the switch 18.
  • the Vorabschalthebel 17 is held in normal operation by means of a retaining element 17.5 relative to the second arm 16.3 of the pendulum lever 16 in a stable position.
  • Retaining element 17.5 for example, a spring-loaded ball may be provided, which dips partially into a bore on the fourth arm 17.2 and 17.2 is pushed back against the spring force in the case of release from the fourth arm.
  • Fig. 3 also shows the above-mentioned retaining spring 19 which is connected at one end to the housing 12 and at the other end to a bolt 16.5 of the first arm 16.1 of the oscillating lever 16.
  • One end of the retaining spring 19 is connected to the housing 12 at a hole of a row of holes, the hole being selected according to the rated speed of the elevator car.
  • a slot 12.1 is provided, in which the bolt 16.5 can move freely.
  • the retaining spring 19 is adjusted so that the spherical roller 16.2 can follow the end face 13.2 of the cam wheel 13, provided that the elevator car does not exceed its rated speed. If the elevator car exceeds a certain trigger value preset by the retaining spring 19, the spherical roller 16.2 lifts from the end face 13.2 of FIG.
  • Fig. 4 shows details of Kraftbeskyrrades 16.4, which is rotatably arranged by means of a fourth axis 16.6 on the second arm 16.3 of the pendulum lever 16 and is braked by a slip clutch 20.
  • the braking force can be adjusted for example by means disposed between Kraftbeskyrrad 16.4 and second arm 16.3 disc springs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)

Abstract

In the case of this speed-limiting means having a cam wheel and pendulum lever and pendulum roller, a force-limiting wheel (16.4) with a plurality of noses (16.7) is provided on the pendulum lever (16.3) instead of a nose which penetrates into the path of blocking-ring teeth (14.1), wherein the force-limiting wheel (16.4) is braked by means of a slip clutch (20). If, in the event of activation, the braking force in the limiting cable exceeds the force of the slip clutch (20), the force-limiting wheel (16.4) is rotated by the nose (16.7) engaging with the blocking-ring tooth (14.1), wherein the cable pulley (10) is rotated along and the tensioning in the limiting cable (6) decreases and the following nose (16.7) penetrates into the path of the blocking-ring teeth (14.1) and blocks the cable pulley (10) anew. This means that those parts which are involved in the activation are safeguarded against the action of excessive force.

Description

Beschreibung:  Description:
Geschwindigkeitsbegrenzer für einen Aufzug Speed limiter for a lift
Die vorgeschlagene Einrichtung betrifft einen Geschwindigkeitsbegrenzer für einen Aufzug bestehend aus einer mittels eines Begrenzerseils antreibaren Seilscheibe, die verbunden ist mit einem Nockenrad, an dem ein Sperrkranz mit Sperrkranzzähnen angeordnet ist und bestehend aus einem Pendelhebel, an dem einenends eine auf dem Nockenrad rollende Pendelrolle und anderenends eine in die Bahn der Sperrkranzzähne eintauchende Nase vorgesehen sind. The proposed device relates to a speed limiter for an elevator consisting of a driven by a limiter rope sheave, which is connected to a cam wheel on which a locking ring with Sperrkranzzähnen is arranged and consisting of a pendulum lever, at one end a rolling on the cam sprocket and the other a nose dipping into the path of the ratchet teeth are provided.
Aus der Schrift DE 36 15270 AI ist ein Geschwindigkeitsbegrenzer bekannt geworden, der die Fahrgeschwindigkeit einer Aufzugskabine überwacht. Eine Seilscheibe mit einer Seilrille ist mittels einer ersten Achse an einem Gehäuse drehbar gelagert. Die Seilrille nimmt ein die Geschwindigkeit der Aufzugskabine abbildendes Begrenzerseil auf, wobei die Enden desFrom DE 36 15270 AI a speed limiter is known, which monitors the driving speed of an elevator car. A pulley with a rope groove is rotatably supported by a first axis on a housing. The rope groove accommodates a governor rope which maps the speed of the elevator car, the ends of the
Begrenzerseils mit einer an der Aufzugskabine angeordneten Fangvorrichtung verbunden sind. Ein Nockenrad mit Nocken ist mit der Seilscheibe fest verbunden. Am Nockenrad ist auch ein Sperrkranz vorgesehen. An einer mit dem Gehäuse verbundenen zweiten Achse ist ein zweiarmiger Pendelhebel schwenkbar gelagert. An einem ersten Arm des Pendelhebels ist eine drehbare Pendelrolle angeordnet, die an der Stirnfläche des Nockenrades abrollt. Die Pendelrolle wird mittels einer mit dem Gehäuse verbundenen Rückhaltefeder auf die als Rollbahn dienende Stirnfläche gepresst. Das Ende eines zweiten Arms des Pendelhebels ist als Pendelnase ausgebildet, die in die Bahn von Sperrkranzzähnen eintaucht, wenn die Pendelrolle über eine Nocke rollt. Die Pendelnase wird aus der Bahn der Sperrkranzzähne gehoben, wenn die Limiter rope are connected to a arranged on the elevator car safety gear. A cam wheel with cam is firmly connected to the pulley. At the cam wheel and a locking ring is provided. At a second axis connected to the housing a two-armed pendulum lever is pivotally mounted. On a first arm of the pendulum lever, a rotatable spherical roller is arranged, which rolls on the end face of the cam wheel. The spherical roller is pressed by means of a retaining spring connected to the housing on the serving as a roller track end face. The end of a second arm of the pendulum lever is formed as a pendulum nose, which dips into the path of Sperrkranzzähnen when the pendulum roller rolls over a cam. The pendulum nose is lifted from the path of the Sperrkranzzähne when the
Pendelrolle zwischen zwei Nocken bzw. in einem Nockental abrollt. Überschreitet die Swing roll between two cams or in a Nockental rolls. Exceeds the
Geschwindigkeit der Aufzugskabine einen vorbestimmten Wert, bleibt die Pendelnase in der Bahn der Sperrkranzzähne eingetaucht und blockiert die Seilscheibe.  Speed of the elevator car a predetermined value, the pendulum lug remains immersed in the path of the ratchet teeth and blocks the pulley.
Nachteilig bei der bekannten Einrichtung ist, dass im Auslösefall nicht kontrollierbare Kräfte entstehen können an den Teilen des Geschwindigkeitsbegrenzers, am Begrenzerseil und an der Fangvorrichtung der Aufzugskabine. Der vorgeschlagene Gegenstand löst die Aufgabe, die Nachteile der bekannten Einrichtung zu vermeiden und einen Geschwindigkeitsbegrenzer zu schaffen, der im Auslösefall die A disadvantage of the known device is that in the event of triggering uncontrollable forces can occur on the parts of the speed limiter, on the governor rope and on the safety gear of the elevator car. The proposed object solves the problem of avoiding the disadvantages of the known device and to provide a speed limiter, which in case of tripping the
Fangvorrichtung der Aufzugskabine sicher betätigt und trotzdem die an der Auslösung beteiligten Teile inkl. Geschwindigkeitsbegrenzer vor übermässiger Krafteinwirkung schützt. Safety device of the elevator car safely operated and still protects the parts involved in the triggering including speed limiter against excessive force.
Die durch den vorgeschlagenen Gegenstand erreichten Vorteile sind im Wesentlichen darin zu sehen, dass die für die Auslösung der Fangvorrichtung der Aufzugskabine notwendige The advantages achieved by the proposed article are essentially to be seen in the fact that the necessary for the triggering of the safety gear of the elevator car
Rückhaltekraft im Begrenzerseil bestimmbar ist. Beschädigungen oder Spitzenbelastungen an sicherheitsrelevanten Teilen, die an der Auslösung der Fangvorrichtung beteiligt sind, bleiben aus. Dadurch wird die Zuverlässigkeit des Aufzuges und die Sicherheit für die Benutzer des Aufzuges verbessert und die Störanfälligkeit der Teile vermindert. Retaining force in the governor rope can be determined. Damage or peak loads on safety-relevant parts that are involved in triggering the safety gear, remain off. As a result, the reliability of the elevator and the safety of the users of the elevator is improved and reduces the susceptibility of the parts.
Anhand der beiliegenden Figuren wird die vorliegende Erfindung näher erläutert. Es zeigen: Fig. 1 Reference to the accompanying figures, the present invention will be explained in more detail. FIG. 1 shows: FIG
eine schematische Darstellung einer beispielhaften Aufzugsanlage mit einer beispielhaften Einrichtung zur Überwachung und Stillsetzung einer Aufzugsanlage, a schematic representation of an exemplary elevator installation with an exemplary device for monitoring and shutdown of an elevator system,
Fig. 2 Fig. 2
einen Geschwindigkeitsbegrenzer zur Überwachung der Geschwindigkeit einer Aufzugskabine, a speed limiter for monitoring the speed of an elevator car,
Fig. 3 Fig. 3
Einzelheiten eines Vorabschalthebels und  Details of a Vorrechschalthebels and
Fig. 4 Fig. 4
Einzelheiten eines Kraftbegrenzerrades.  Details of a Kraftbegrenzerrades.
In Fig. 1 ist mit 1 eine in einem Aufzugsschacht 1.1 verfahrbare Aufzugskabine bezeichnet, welche mittels eines über eine Treibscheibe geführtes Tragseil mit einem Gegengewicht verbunden ist. Treibscheibe, Tragseil und Gegengewicht sind nicht dargestellt. Eine Kabinentür 1.2 schliesst die Aufzugskabine 1 ab. Führungsschienen 1.3 führen die Aufzugskabine 1 auf ihrem Weg. Zur Überwachung der Geschwindigkeit der Aufzugskabine 1 bzw. des In Fig. 1 is denoted by 1 in an elevator shaft 1.1 movable elevator car, which is connected by means of a guided over a traction sheave carrying rope with a counterweight. Traction sheave, suspension rope and counterweight are not shown. A car door 1.2 closes the elevator car 1. Guide rails 1.3 guide the elevator car 1 on its way. To monitor the speed of the elevator car 1 or des
Gegengewichtes ist ein auf dem Pendelhebelprinzip arbeitender Geschwindigkeitsbegrenzer 5 vorgesehen, wobei die Bewegung der Aufzugskabine 1 bzw. des Gegengewichtes mittels eines Begrenzerseiles 6 auf den Geschwindigkeitsbegrenzer 5 übertragen wird. Das Begrenzerseil 6 erstreckt sich über die gesamte Schachthöhe und wird am unteren Schachtende mittels einer Umlenkrolle 7 umgelenkt und mittels Spanngewicht 7.1 gespannt sowie am oberen Schachtende über eine Seilscheibe des Geschwindigkeitsbegrenzers 5 geführt. Die Enden des Begrenzerseiles 6 sind an einer an der Aufzugskabine 1 angeordneten Auslösemechanik 8 festgemacht, die im Notfall bzw. im Auslösefall eine an der Aufzugskabine 1 angeordnete Fangvorrichtung 9 betätigt. Counterweight is provided on the pendulum lever principle speed limiter 5, wherein the movement of the elevator car 1 and the counterweight is transmitted by means of a Begrenzerseiles 6 on the speed limiter 5. The limiter rope 6 extends over the entire shaft height and is deflected at the lower end of the shaft by means of a guide roller 7 and tensioned by means of tension weight 7.1 and guided at the upper end of the shaft via a pulley of the speed limiter 5. The ends of the Begrenzerseiles 6 are fastened to a arranged on the elevator car 1 tripping mechanism 8, which actuates an arranged on the elevator car 1 safety gear 9 in case of emergency or in the event of triggering.
Fig. 2 zeigt den Geschwindigkeitsbegrenzer 5, der die Fahrgeschwindigkeit der Aufzugskabine 1 überwacht. Die Seilscheibe 10 mit einer Seilrille 10.1 ist mittels einer ersten Achse 11 an einem Gehäuse 12 drehbar gelagert. Die Seilrille 10.1 nimmt das die Geschwindigkeit der FIG. 2 shows the speed limiter 5 monitoring the driving speed of the elevator car 1. The pulley 10 with a rope groove 10.1 is rotatably supported by a first axis 11 on a housing 12. The rope groove 10.1 takes the speed of the
Aufzugskabine 1 abbildende Begrenzerseil 6 auf, wobei die Enden des Begrenzerseils 6 mit der an der Aufzugskabine 1 angeordneten Fangvorrichtung 9 verbunden sind. Ein Nockenrad 13 mit Nocken 13.1 ist mit der Seilscheibe 10 fest verbunden. Am Nockenrad 13 ist auch ein Sperrkranz 14 vorgesehen. An einer mit dem Gehäuse 12 verbundenen zweiten Achse 15 ist ein zweiarmiger Pendelhebel 16 schwenkbar gelagert. An einem ersten Arm 16.1 des Pendelhebels 16 ist eine drehbare Pendelrolle 16.2 angeordnet, die an einer Stirnfläche 13.2 des Nockenrades abrollt. Die Pendelrolle 16.2 wird mittels einer mit dem Gehäuse 12 verbundenen Rückhaltefeder auf die als Rollbahn dienende Stirnfläche 13.2 gepresst. Am Ende eines zweiten Arms 16.3 des Pendelhebels 16 ist ein Kraftbegrenzerrad 16.4 angeordnet, das in die Bahn von Sperrkranzzähnen 14.1 eintaucht, wenn die Pendelrolle 16.2 über eine Nocke 13.1 rollt. Das Elevator car 1 mapping limiter 6, wherein the ends of the governor rope 6 are connected to the arranged on the elevator car 1 safety gear 9. A cam 13 with cam 13.1 is fixedly connected to the pulley 10. At the cam wheel 13 and a locking ring 14 is provided. At a second axis 15 connected to the housing 12, a two-armed pendulum lever 16 is pivotally mounted. On a first arm 16.1 of the pendulum lever 16, a rotatable spherical roller 16.2 is arranged, which rolls on an end face 13.2 of the cam wheel. The pendulum roller 16.2 is pressed by means of a connected to the housing 12 retaining spring on the serving as a roller track face 13.2. At the end of a second arm 16.3 of the pendulum lever 16, a Kraftbegrenzerrad 16.4 is arranged, which dips into the path of Sperrkranzzähnen 14.1 when the shuttle roller 16.2 rolls over a cam 13.1. The
Kraftbegrenzerrad 16.4 wird aus der Bahn der Sperrkranzzähne 14.1 gehoben, wenn die Kraftbegrenzerrad 16.4 is lifted from the path of the locking ring teeth 14.1 when the
Pendelrolle 16.2 zwischen zwei Nocken bzw. in einem Nockental 13.3 abrollt. Überschreitet die Geschwindigkeit der Aufzugskabine 1 einen vorbestimmten Wert, bleibt das Kraftbegrenzerrad 16.4 in der Bahn der Sperrkranzzähne 14.1 eingetaucht und blockiert die Seilscheibe 10. Am zweiten Arm 16.3 des Pendelhebels 16 ist ein zweiarmiger Vorabschalthebel 17 schwenkbar angeordnet, der mittels des Sperrkranzes 14 betätigbar ist, wobei der Vorabschalthebel 17 mittels eines Schalters 18 den Aufzugsantrieb abschaltet und die Antriebsbremse einrückt.  Spool 16.2 rolls between two cams or in a Nockental 13.3. If the speed of the elevator car 1 exceeds a predetermined value, the force limiting wheel 16.4 remains immersed in the path of the locking ring gear teeth 14.1 and blocks the sheave 10. A two-armed pre-switching lever 17 is pivotally mounted on the second arm 16.3 of the oscillating lever 16 and can be actuated by means of the blocking rim 14. wherein the Vorabschalthebel 17 by means of a switch 18 turns off the elevator drive and engages the drive brake.
Fig. 3 zeigt Einzelheiten des Vorabschalthebels 17, der einen dritten Arm 17.1 und einen vierten Arm 17.2 aufweist und an einer dritten Achse 17.3 am zweiten Arm 16.3 des Pendelhebels 16 schwenkbar gelagert ist. Im Auslösefall taucht eine am vierten Arm 17.2 angeordnete erste Nase 17.4 etwas früher als das Kraftbegrenzerrad 16.4 in die Bahn der Sperrkranzzähne 14.1 ein und wird dabei um die dritte Achse 17.3 geschwenkt, wobei der dritte Arm 17.1 den Schalter 18 betätigt. Der Vorabschalthebel 17 wird bei Normalbetrieb mittels eines Rückhalteelementes 17.5 relativ zum zweiten Arm 16.3 des Pendelhebels 16 in einer stabilen Lage gehalten. Als Fig. 3 shows details of Vorabschalthebels 17, which has a third arm 17.1 and a fourth arm 17.2 and is pivotally mounted on a third axis 17.3 on the second arm 16.3 of the pendulum lever 16. When triggered, a fourth arm 17.2 disposed on the first 17.4 nose dives slightly earlier than the Kraftbegrenzerrad 16.4 in the path of the Sperrkranzzähne 14.1 and is pivoted about the third axis 17.3, wherein the third arm 17.1 actuates the switch 18. The Vorabschalthebel 17 is held in normal operation by means of a retaining element 17.5 relative to the second arm 16.3 of the pendulum lever 16 in a stable position. When
Rückhalteelement 17.5 kann beispielsweise eine federbeaufschlagte Kugel vorgesehen sein, die teilweise in eine Bohrung am vierten Arm 17.2 eintaucht und im Auslösefall vom vierten Arm 17.2 entgegen der Federkraft zurückgestossen wird. Fig. 3 zeigt auch die oben genannte Rückhaltefeder 19, die einenends mit dem Gehäuse 12 und anderenends mit einem Bolzen 16.5 des ersten Arms 16.1 des Pendelhebels 16 verbunden ist. Das eine Ende der Rückhaltefeder 19 wird an einem Loch einer Lochreihe mit dem Gehäuse 12 verbunden, wobei das Loch entsprechend der Nenngeschwindigkeit der Aufzugskabine gewählt wird. Am Gehäuse 12 ist ein Langloch 12.1 vorgesehen, in dem sich der Bolzen 16.5 frei bewegen kann. Die Rückhaltefeder 19 ist so eingestellt, dass die Pendelrolle 16.2 der Stirnfläche 13.2 des Nockenrades 13 folgen kann, sofern die Aufzugskabine ihre Nenngeschwindigkeit nicht überschreitet. Überschreitet die Aufzugskabine eine bestimmte, durch die Rückhaltefeder 19 voreingestellten Auslösewert, so hebt die Pendelrolle 16.2 von der Stirnfläche 13.2 des Retaining element 17.5, for example, a spring-loaded ball may be provided, which dips partially into a bore on the fourth arm 17.2 and 17.2 is pushed back against the spring force in the case of release from the fourth arm. Fig. 3 also shows the above-mentioned retaining spring 19 which is connected at one end to the housing 12 and at the other end to a bolt 16.5 of the first arm 16.1 of the oscillating lever 16. One end of the retaining spring 19 is connected to the housing 12 at a hole of a row of holes, the hole being selected according to the rated speed of the elevator car. On the housing 12, a slot 12.1 is provided, in which the bolt 16.5 can move freely. The retaining spring 19 is adjusted so that the spherical roller 16.2 can follow the end face 13.2 of the cam wheel 13, provided that the elevator car does not exceed its rated speed. If the elevator car exceeds a certain trigger value preset by the retaining spring 19, the spherical roller 16.2 lifts from the end face 13.2 of FIG
Nockenrades 13 ab. Das Trägheitsmoment des Pendelhebels 16 wird grösser als das Cam wheel 13 from. The moment of inertia of the pendulum lever 16 is greater than that
Rückhaltemoment der Rückhaltefeder 19. Die erste Nase 17.4 des vierten Arms 17.2 des Vorabschalthebels 17 bleibt in der Bahn der Sperrkranzzähne 14.1, was zur Schwenkung des Vorabschalthebels 17 führt ohne das Nockenrad 13 zu blockieren. Steigt die Geschwindigkeit der Aufzugskabine weiter an, taucht das Kraftbegrenzerrad 16.4 in die Bahn der Sperrkranzzähne 14.1 ein und blockiert die Seilscheibe 10. Retaining torque of the retaining spring 19. The first lug 17.4 of the fourth arm 17.2 of the Vorabschalthebels 17 remains in the path of the Sperrkranzzähne 14.1, which leads to the pivoting of Vorabschalthebels 17 without the cam wheel 13 to block. If the speed of the elevator car continues to increase, the force limiting wheel 16.4 plunges into the path of the locking ring gear teeth 14.1 and blocks the cable pulley 10.
Fig. 4 zeigt Einzelheiten des Kraftbegrenzerrades 16.4, das drehbar mittels einer vierten Achse 16.6 am zweiten Arm 16.3 des Pendelhebels 16 angeordnet ist und mittels einer Rutschkupplung 20 gebremst wird. Die Bremskraft kann beispielsweise mittels zwischen Kraftbegrenzerrad 16.4 und zweitem Arm 16.3 angeordneten Tellerfedern eingestellt werden. Alternativ können auch federbeaufschlagte Kugeln vorgesehen sein, die teilweise in Bohrungen des Kraftbegrenzerrades 16.4 eintauchen. Am Kraftbegrenzerrad 16.4 sind beispielsweise drei zweite Nasen 16.7 vorgesehen, wobei eine zweite Nase 16.7 in die Bahn der Sperrkranzzähne 14.1 eintaucht, falls die Pendelrolle 16.2 eine Nocke 13.1 überrollt. Falls im Auslösefall die bremsende Kraft im Begrenzerseil 6 die Kraft der Rutschkupplung 20 übersteigt, wird das Kraftbegrenzerrad 16.4 an der im Eingriff mit dem Sperrkranzzahn 14.1 stehenden zweiten Nase 16.7 gedreht, wobei die Seilscheibe 10 mitdreht und die Spannung im Begrenzerseil 6 abbaut und die nachfolgende zweite Nase 16.7 in die Bahn der Sperrkranzzähne 14.1 eintaucht und die Seilscheibe 10 erneut blockiert. Fig. 4 shows details of Kraftbegrenzerrades 16.4, which is rotatably arranged by means of a fourth axis 16.6 on the second arm 16.3 of the pendulum lever 16 and is braked by a slip clutch 20. The braking force can be adjusted for example by means disposed between Kraftbegrenzerrad 16.4 and second arm 16.3 disc springs. Alternatively, it is also possible to provide spring-loaded balls which partially dip into bores of the force-limiting wheel 16.4. On Kraftbegrenzerrad 16.4, for example, three second lugs 16.7 are provided, wherein a second nose 16.7 dips into the path of the locking ring teeth 14.1, if the shuttle roller 16.2 a cam 13.1 rolls over. If the braking force in the governor rope 6 exceeds the force of the slip clutch 20 when triggered, the Kraftbegrenzerrad 16.4 is rotated at the engaged with the locking ring gear 14.1 second nose 16.7, wherein the pulley 10 rotates and the voltage degrades in the governor 6 and the subsequent second Nose 16.7 dips into the path of the Sperrkranzzähne 14.1 and the pulley 10 blocks again.

Claims

Patentansprüche : 1.  Claims: 1.
Geschwindigkeitsbegrenzer (5) für einen Aufzug bestehend aus einer mittels eines Begrenzerseils (6) antreibaren Seilscheibe (10) und einem Nockenrad (13), das verbunden ist mit der Seilscheibe (10) und bestehend aus einem Sperrkranz (14) mit Sperrkranzzähnen (14.1), der am Nockenrad (13) angeordnet ist und bestehend aus einem Pendelhebel (16) mit einem ersten Arm (16.1) und einem zweiten Arm (16.3), wobei am ersten Arm (16.1) eine auf dem Nockenrad (13) rollende Pendelrolle (16.2) und am zweiten Arm (16.3) eine in die Bahn der Sperrkranzzähne (14.1) eintauchende Nase (16.7) vorgesehen sind, Speed limiter (5) for an elevator comprising a pulley (10) which can be driven by means of a limiter cable (6) and a cam wheel (13) which is connected to the pulley (10) and comprises a locking ring (14) with locking ring teeth (14.1) which is arranged on the cam wheel (13) and consists of a pendulum lever (16) with a first arm (16.1) and a second arm (16.3), wherein on the first arm (16.1) on the cam wheel (13) rolling pendulum roller (16.2 ) and on the second arm (16.3) are provided in the path of the locking ring teeth (14.1) dipping nose (16.7),
dadurch gekennzeichnet, characterized,
dass am zweiten Arm (16.3) des Pendelhebels (16) ein Kraftbegrenzerrad (16.4) mit mehreren Nasen (16.7) vorgesehen ist, wobei jeweils eine Nase (16.7) in die Bahn der Sperrkranzzähne (14.1) eintaucht. that on the second arm (16.3) of the pendulum lever (16) a Kraftbegrenzerrad (16.4) is provided with a plurality of lugs (16.7), wherein in each case a nose (16.7) in the path of the Sperrkranzzähne (14.1) is immersed.
2. Second
Geschwindigkeitsbegrenzer nach Anspruch 1 ,  Speed limiter according to claim 1,
dadurch gekennzeichnet, characterized,
dass zwischen dem Pendelhebel (16) und dem Kraftbegrenzerrad (16.4) eine Rutschkupplungthat between the pendulum lever (16) and the Kraftbegrenzerrad (16.4) a slip clutch
(20) vorgesehen ist, die das Kraftbegrenzerrad (16.4) bremst, wobei im Auslösefall bei einer auf die Seilscheibe (10) übermässig einwirkenden Kraft des Begrenzerseils (6) das Kraftbegrenzerrad (16.4) gedreht wird und die benachbarte Nase (16.7) in die Bahn der Sperrkranzzähne (14.1) eintaucht. (20) is provided which brakes the Kraftbegrenzerrad (16.4), wherein in the case of triggering at a on the pulley (10) excessively acting force of the Begrenzerseils (6) the Kraftbegrenzerrad (16.4) is rotated and the adjacent nose (16.7) in the web the locking ring teeth (14.1) is immersed.
3. Third
Geschwindigkeitsbegrenzer nach Anspruch 2,  Speed limiter according to claim 2,
dadurch gekennzeichnet, characterized,
dass die Rutschkupplung (2) Tellerfedern aufweist, die das Kraftbegrenzerrad (16.4) bis zu einer übermässigen Kraft im Begrenzerseil (6) bremsen. in that the friction clutch (2) has disc springs which brake the force limiting wheel (16.4) up to an excessive force in the governor cable (6).
4. 4th
Geschwindigkeitsbegrenzer nach Anspruch 2,  Speed limiter according to claim 2,
dadurch gekennzeichnet, characterized,
dass die Rutschkupplung (2) federbeaufschlagte Kugeln aufweist, die teilweise in Bohrungen des Kraftbegrenzerrades (16.4) eintauchen und die das Kraftbegrenzerrad (16.4) bis zu einer übermässigen Kraft im Begrenzerseil (6) bremsen. in that the slip clutch (2) has spring-loaded balls which partially dip into bores of the force-limiting wheel (16.4) and which brake the force-limiting wheel (16.4) up to an excessive force in the governor rope (6).
5. 5th
Aufzug mit einer in einem Aufzugsschacht (1.1) verfahrbaren Aufzugskabine (1) und einem zur Überwachung der Geschwindigkeit der Aufzugskabine (1) vorgesehenen  Elevator with a lift cage (1) movable in an elevator car (1) and one for monitoring the speed of the elevator car (1) provided
Geschwindigkeitsbegrenzer (5) nach einem der Ansprüche 1 bis 4, wobei die Geschwindigkeit der Aufzugskabine (1) mittels eines Begrenzerseils (6) auf den Geschwindigkeitsbegrenzer (5) übertragbar ist und die Enden des Begrenzerseils (6) an einer Fangvorrichtung (9) der  Speed limiter (5) according to one of claims 1 to 4, wherein the speed of the elevator car (1) by means of a limiter rope (6) on the speed limiter (5) is transferable and the ends of the governor rope (6) on a safety gear (9) of
Aufzugskabine (1) festgemacht sind. Elevator car (1) are moored.
EP12772332.8A 2011-10-27 2012-10-16 Speed limiter for a lift Not-in-force EP2771267B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12772332.8A EP2771267B1 (en) 2011-10-27 2012-10-16 Speed limiter for a lift

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11186928 2011-10-27
EP12772332.8A EP2771267B1 (en) 2011-10-27 2012-10-16 Speed limiter for a lift
PCT/EP2012/070442 WO2013060597A1 (en) 2011-10-27 2012-10-16 Speed-limiting means for a lift

Publications (2)

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EP2771267A1 true EP2771267A1 (en) 2014-09-03
EP2771267B1 EP2771267B1 (en) 2015-03-04

Family

ID=47018223

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US (1) US20130105250A1 (en)
EP (1) EP2771267B1 (en)
WO (1) WO2013060597A1 (en)

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EP2771267B1 (en) 2015-03-04
US20130105250A1 (en) 2013-05-02

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