EP2135832A1 - Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur - Google Patents

Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur Download PDF

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Publication number
EP2135832A1
EP2135832A1 EP08158614A EP08158614A EP2135832A1 EP 2135832 A1 EP2135832 A1 EP 2135832A1 EP 08158614 A EP08158614 A EP 08158614A EP 08158614 A EP08158614 A EP 08158614A EP 2135832 A1 EP2135832 A1 EP 2135832A1
Authority
EP
European Patent Office
Prior art keywords
elevator
elevator brake
brake
friction lining
rail
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
EP08158614A
Other languages
German (de)
English (en)
Other versions
EP2135832B1 (fr
Inventor
Stefan Hugel
Bernward Dr. Bayer
Georg Halasy-Wimmer
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 EP08158614A priority Critical patent/EP2135832B1/fr
Priority to ES08158614T priority patent/ES2380839T3/es
Priority to AT08158614T priority patent/ATE540888T1/de
Publication of EP2135832A1 publication Critical patent/EP2135832A1/fr
Application granted granted Critical
Publication of EP2135832B1 publication Critical patent/EP2135832B1/fr
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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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the present invention relates to an elevator brake, preferably an electromechanically actuated elevator brake, with an actuating unit which presses by means of an actuating element a first friction lining against an elevator rail, or a brake disc of an elevator drive, while a second friction lining by the action of a in the actuation of the arrangement of the elevator brake applied reaction force is pressed against the opposite side surface of the elevator rail.
  • the invention further relates to an elevator installation with such an elevator brake.
  • electromechanically actuatable brake actuators in particular in the case of electromechanically actuatable brake actuators, it may, in particular in the holding brake position, e.g. In case of power failure or even a mechanical blockade ("jamming") come to a permanent holding brakes of an elevator car when the holding brake position controlled can not be solved again. To avoid such a case, a mechanical release device is desirable, which in case of emergency, even without energization - purely manually or mechanically - is actuated.
  • Such elevator brakes are installed in an elevator system or a travel bridge.
  • a corresponding elevator installation includes at least one elevator car and one elevator drive.
  • the elevator brake is used to brake and hold the elevator car.
  • An elevator brake for use in an elevator system is, for example, from EP1671912 known.
  • This known brake has an electromechanical actuating element, and a locking device for realizing a holding brake function, wherein a quick-release device is provided for releasing the locking device from its actuated position.
  • the locking device can be unlocked using a power source again. This requires that a release of enclosed elevator passengers take a long time, since at most appropriate note energy sources must be provided.
  • the release device on at least one operable wedge-shaped element which cooperates with a second friction lining associated element so that actuation of the wedge-shaped element brings the second friction lining out of engagement with the elevator rail and thus a relaxation of Elevator brake causes.
  • a further advantageous embodiment provides that the element associated with the second friction lining is likewise wedge-shaped and has a nose which cooperates with a guide groove in the wedge-shaped element.
  • the release device is formed by a rotatable threaded bolt which is screwed into a thread arranged in Faustsattel, wherein pivoting of the threaded bolt the second Friction pad disengages the elevator rail and causes a relaxation of the elevator brake.
  • a lever is attached to the threaded bolt, which can be remotely operated by a cable from the elevator maintenance personnel or from appropriately instructed persons.
  • the release or emergency release device is formed by an inclined plane, a ramp, a bayonet or an eccentric, which brings when actuated the second friction lining out of engagement with the elevator rail and thus causes a relaxation of the elevator brake.
  • the release device is designed in any case such that upon actuation a release travel (.DELTA.s) is provided, which corresponds to at least the elastic deformation of the caliper and the load-bearing elements.
  • a release travel (.DELTA.s) is provided, which corresponds to at least the elastic deformation of the caliper and the load-bearing elements.
  • the operation of the release device can be detected by means of a sensor.
  • the actuating element is preferably an electromechanical actuation, for example using an electric motor, which provides a required pressing force of the friction lining on an elevator rail, or on a brake disk of the elevator drive.
  • the elevator system is usually installed in a shaft, the shaft may be limited in total or in part by enclosures or it may be open.
  • the shaft describes the driving space required by the elevator system including required safety distances.
  • an exemplary elevator installation according to the invention furthermore requires support means and a counterweight, wherein the elevator drive drives, for example, the suspension means via a traction wheel and thus moves the elevator cage and the counterweight in opposite directions.
  • rope-like, non-jacketed suspension elements wire ropes, synthetic fiber ropes etc
  • chain-like suspension elements are used as suspension elements for elevator systems and in particular also belt-like and / or sheathed suspension means in question.
  • the elevator drive can of course, alternatively or additionally, be assembled with the elevator car or incorporated in the counterweight.
  • elevator systems known in which the counterweight is eliminated. In such an arrangement, for example, the elevator drive can directly raise and lower the cabin.
  • This elevator system requires at least one elevator brake.
  • the elevator brake holds a stationary elevator car - for example, during the loading time in a floor - or it brakes the elevator car in an emergency - for example, an unexpected opening of a floor access - from, or it catches too fast elevator car - for example, in a failure of the suspension elements - on.
  • the elevator brake can be arranged at different locations in this elevator installation.
  • the elevator brake is preferably arranged directly on the elevator car and engages there in an elevator rail.
  • the elevator brake can also be arranged in the elevator drive, where it cooperates there, for example, with the traction wheel or with a brake disk mounted on the traction wheel.
  • Other arrangements such as an arrangement on the counterweight, in cooperation with a counterweight lift rail or an arrangement in the shaft in cooperation with the support means as a brake partner are possible.
  • the elevator brake always works as described with a brake partner. In the present description, the operation and advantages of the example of the interaction with the elevator rail are shown. Always the other brake partners are included.
  • the task of braking and holding the elevator car can be perceived solely by an elevator brake.
  • the elevator brake can also take on only one of the functions, for example holding on the floor, while other functions, such as catching the elevator car in the event of failure of suspension elements, are taken over by a separate safety gear.
  • a drive bridge includes drive plates or drive steps which are driven by a drive via a conveyor. Also this drive can be equipped with the brake according to the invention.
  • electromechanically actuated elevator brake is a so-called floating caliper brake
  • the brake caliper shown in section is slidably mounted in a stationary holder, not shown.
  • a pair of friction linings 4 and 5 are disposed in the caliper so as to face the left and right side surfaces of an elevator rail 6.
  • the actuator which is mounted by means not shown fastening means on the caliper, has a modular construction and consists essentially of four independent assemblies or modules, namely from a drive unit 1, a first friction lining 4 actuated first reduction gear 2, which simultaneously converts a rotation into a translational movement, an operatively connected between the drive unit 1 and the first reduction gear 2 second reduction gear 3 and an electronic control unit 8.
  • the previously mentioned drive unit 1 consists of an electric motor, which is formed in the example shown as a permanent magnet excited, electronically commutated motor, the stator 9 is immovably disposed in a motor housing 12 and the rotor 10 is connected to a shaft 13 which is connected to the second reduction gear 3 is operatively connected.
  • the first reduction gear 2 is formed in the example shown as a ball screw, which is arranged in a gear housing 14, which may also be made in one piece with the aforementioned caliper.
  • the ball screw consists of a threaded nut 16 and a threaded spindle 17, wherein between the threaded nut 16 and the threaded spindle 17 a plurality of unspecified balls are arranged, which rotate during a rotational movement of the threaded spindle 17 and the threaded nut 16 in an axial or translational movement offset.
  • the threaded nut 16 is preferably made in two parts and consists of a first part 18 which forms the previously mentioned actuator 7, and a second part 19, in which a return region is formed for the balls, in which the balls without load at the beginning of can run back into a supporting career.
  • the second reduction gear 3 is formed as a planetary gear.
  • the arrangement is preferably made such that the rotor 10 or the shaft 13 of the electric motor with the interposition of the second reduction gear 3, the threaded spindle 17 drives, while the first part 18 of the threaded nut 16 is supported on the first friction lining 4.
  • the coupling of the first reduction gear 2 to the second reduction gear 3 by means of a transverse force-free plug-in connection, which carries the reference numeral 20 and which can be carried out, for example, as a serration.
  • the bearing of the rotor 10 serve two radial bearings 21, 22, which are arranged in the motor housing 12.
  • the electronic control unit 8 a preferably made of plastic housing 23 which is provided with a flange which receives all electrical interfaces between the electric motor and the electronic control unit 8 and mechanical interfaces between the electric motor and the second reduction gear 3.
  • the flange is advantageously arranged between the electric motor and a housing 25 accommodating the second reduction gear 3.
  • a non-illustrated position detection system is used to determine the current position of the rotor 10th
  • electromechanically actuated brake actuators it may, in particular in an in Fig. 1 Not shown holding brake position, for example in case of power failure or a mechanical blockade - ie a "jamming" - come to a permanent holding brakes of an elevator car or the wheel of a motor vehicle concerned when the holding brake position can not be controlled again solved.
  • a mechanical emergency release device 24 is provided, which is also without energization - purely manually or mechanically - actuated and below with reference to Fig. 2 to 4 is explained in more detail.
  • FIG. 2 an emergency release device 24 is shown, in which the back plate of the second friction lining 5 with two wedge-shaped elements 25, 26 is underlaid.
  • the emergency release device 24 consists essentially of an actuatable wedge-shaped Element 25, which cooperates with a second friction lining 5 associated element 26.
  • the wedge-shaped element 25 is mechanically, z. B. by a Bowden cable or a linkage - possibly with the interposition of a mechanical translation (gear) - pulled out of position, so that the floating caliper is relaxed and the stalled elevator car is released again.
  • the second friction lining 5 associated element 26 has a nose 27 which cooperates with a guide groove 28 in the wedge-shaped element 25.
  • FIG. 3 and Fig. 4 An alternative embodiment is in Fig. 3 and Fig. 4 shown.
  • the emergency release device 24 is arranged on the side of the elevator rail (6) opposite the actuating unit and acts on the second friction lining 5.
  • the second, fist-side friction lining 5 is on a rotatable threaded bolt 29 which is screwed into a arranged in Faustsattel, self-locking thread 30 - or an inclined plane or a (ball) ramp, a bayonet or an eccentric - so supported that between the Back plate of the second friction lining 5 and the Faustsattel a distance ⁇ s is present.
  • This distance .DELTA.s corresponds at least to the elastic deformation of the caliper and the load application elements under load (eg ball screw, piston, etc.) including the compression of the friction linings 4, 5 during the braking process and optionally the clearance. If the brake is closed and can no longer be opened by the actuator side, the brake can be opened or emergency unlocked by rotating the threaded bolt 29 in the "opening direction" by an angle ⁇ . Thus, the distance ⁇ s is reduced until the caliper is relaxed and the brake is open. A rotation by ⁇ thus results in a path of ⁇ s.
  • a lever 31 On the threaded bolt 29, for example, outside a lever 31 may be attached, which can be operated via a cable or Bowden cable 32 or a linkage from a remote position, if a direct accessibility to the brake is not given.
  • the lever 31 is pivoted in Notentriegelungsfall from its normal position "brakes” in the position "emergency unlocked".
  • an additional translation provided between threaded bolt 29 and lever 31.
  • a monitoring of the position of the threaded bolt 29 and the lever 31 can be performed by means of an electronic sensor.
  • Fig. 5 is a possible integration of an elevator brake, with all its previously presented variations and alternative solutions, shown in an elevator system.
  • the elevator installation 40 includes a cabin 42 or a corresponding transport platform.
  • the elevator car 42 is arranged to be movable in a shaft 44.
  • a travel path of the elevator car 42 is determined by substantially vertically oriented elevator rails 6.
  • the elevator car 42 shown is suspended on suspension means 46.
  • an elevator drive 43 By means of an elevator drive 43, a driving force can be transmitted to the elevator car 42 via the suspension element 46.
  • the drive 43 is controlled or controlled by an elevator control 51, and the elevator car can thus be moved according to the control specifications of the elevator control 51.
  • the elevator installation 40 thus makes it possible to transport persons or goods over a plurality of floors 49 lying one above another, by allowing the elevator cabin 42 to be moved and stopped along these floors 49.
  • the shaft 44 is bounded by braces 45.
  • These barriers 45 may be building walls, steel scaffolding, glass surfaces or other materials known as building materials.
  • the barrier 45 can also be open, as is often done, for example, in a so-called panoramic elevator.
  • the defense can of course also consist of combinations.
  • a wall can be solid brick walls and other walls may consist of glass parts.
  • the illustrated elevator installation 40 further includes a counterweight 47 which at least partially compensates for the weight of the elevator car 42. It hangs at the opposite end of the support means 46.
  • the counterweight 47 in turn can be moved along counterweight lift rails 6, wherein it necessarily moves counter to the elevator car 42.
  • the elevator brake 41 is attached to the elevator car 42.
  • the elevator car is usually guided by means of two elevator rails 6, which are arranged on both sides of the elevator car 42.
  • the elevator brake 41 is preferably also divided into two units which each engage one of the elevator rails 6.
  • the elevator brake 41 used in addition to a safety gear 50.
  • the elevator brake 41 is dimensioned to the car 42 from all their usual operating conditions, but with intact support means 46 and counterweight 47, decelerate and hold.
  • the safety gear 50 engages only in case of failure of the support means 46 a. It is accordingly simple and dimensioned only for a few brakes.
  • the safety gear 50 can be dispensed with, or the elevator brake 41 can, while maintaining the safety gear 50 on the car 42, be arranged on the counterweight 47.
  • it can also be arranged on the elevator drive 43, where it engages, for example, on a drive brake disc connected directly to a traction wheel 48, or it can engage the support means and decelerate or hold it.
  • the elevator brake according to the invention thus has two release options.
  • a first release device is used in normal operation and is usually integrated in the normal operating device.
  • the first friction lining 4 is thereby pressed with the actuating element 7, usually electromechanically, to the elevator rail and it is also released or relieved with the actuating element 7.
  • the elevator brake now has a second release device 24, as explained in the preceding examples.
  • This second release device 24 is preferably mechanical, manually operable, executed, and allows release of the locked elevator brake in an emergency.
  • the elevator brake shown can also be mounted as a brake on a drive of a conveyor web or an escalator.
  • the actuating element may also include a hydraulic, a pneumatic, a purely mechanical or possibly also a pyrotechnic actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP08158614A 2008-06-19 2008-06-19 Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur Active EP2135832B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08158614A EP2135832B1 (fr) 2008-06-19 2008-06-19 Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur
ES08158614T ES2380839T3 (es) 2008-06-19 2008-06-19 Freno de ascensor e instalación de ascensor con un freno de ascensor
AT08158614T ATE540888T1 (de) 2008-06-19 2008-06-19 Aufzugbremse und eine aufzuganlage mit einer aufzugbremse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08158614A EP2135832B1 (fr) 2008-06-19 2008-06-19 Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur

Publications (2)

Publication Number Publication Date
EP2135832A1 true EP2135832A1 (fr) 2009-12-23
EP2135832B1 EP2135832B1 (fr) 2012-01-11

Family

ID=39877864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08158614A Active EP2135832B1 (fr) 2008-06-19 2008-06-19 Frein d'ascenseur et une installation d'ascenseur dotée d'un frein d'ascenseur

Country Status (3)

Country Link
EP (1) EP2135832B1 (fr)
AT (1) ATE540888T1 (fr)
ES (1) ES2380839T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111377332A (zh) * 2018-12-31 2020-07-07 通力股份公司 电梯轿厢停车制动器和电梯轿厢

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070082A1 (en) * 2000-12-07 2002-06-13 Muff Josef A. Safety brake and method for unlocking a safety brake
EP1460019A1 (fr) * 2003-03-20 2004-09-22 Thyssenkrupp Elevator Manufacturing France S.A.S. Dispositif de déblocage d'un parachute pour cabine d'ascenseur, ainsi que le parachute ainsi équipé
EP1671912A1 (fr) 2004-12-17 2006-06-21 Inventio Ag Système d'ascenseur avec unité de freinage et méthode pour mantenir l'ascenseur en position arrêtée
US20060180406A1 (en) * 2004-12-17 2006-08-17 Inventio Ag Elevator installation with a braking device and method for braking and holding an elevator installation
EP1724225A1 (fr) * 2004-02-23 2006-11-22 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage d urgence d un elevateur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070082A1 (en) * 2000-12-07 2002-06-13 Muff Josef A. Safety brake and method for unlocking a safety brake
EP1460019A1 (fr) * 2003-03-20 2004-09-22 Thyssenkrupp Elevator Manufacturing France S.A.S. Dispositif de déblocage d'un parachute pour cabine d'ascenseur, ainsi que le parachute ainsi équipé
EP1724225A1 (fr) * 2004-02-23 2006-11-22 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage d urgence d un elevateur
EP1671912A1 (fr) 2004-12-17 2006-06-21 Inventio Ag Système d'ascenseur avec unité de freinage et méthode pour mantenir l'ascenseur en position arrêtée
US20060180406A1 (en) * 2004-12-17 2006-08-17 Inventio Ag Elevator installation with a braking device and method for braking and holding an elevator installation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111377332A (zh) * 2018-12-31 2020-07-07 通力股份公司 电梯轿厢停车制动器和电梯轿厢
US11618647B2 (en) * 2018-12-31 2023-04-04 Kone Corporation Elevator car parking brake
CN111377332B (zh) * 2018-12-31 2024-03-22 通力股份公司 电梯轿厢停车制动器和电梯轿厢

Also Published As

Publication number Publication date
EP2135832B1 (fr) 2012-01-11
ATE540888T1 (de) 2012-01-15
ES2380839T3 (es) 2012-05-18

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