EP1439144A2 - Dispositif de freinage pour un ascenseur - Google Patents

Dispositif de freinage pour un ascenseur Download PDF

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Publication number
EP1439144A2
EP1439144A2 EP04000630A EP04000630A EP1439144A2 EP 1439144 A2 EP1439144 A2 EP 1439144A2 EP 04000630 A EP04000630 A EP 04000630A EP 04000630 A EP04000630 A EP 04000630A EP 1439144 A2 EP1439144 A2 EP 1439144A2
Authority
EP
European Patent Office
Prior art keywords
vehicle
braking
dispositive
brake
guide 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.)
Withdrawn
Application number
EP04000630A
Other languages
German (de)
English (en)
Other versions
EP1439144A3 (fr
Inventor
Alexander M. Iken
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.)
Aufzugswerke M Schmitt & Sohn & Co GmbH
Original Assignee
Aufzugswerke M Schmitt & Sohn & Co GmbH
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 Aufzugswerke M Schmitt & Sohn & Co GmbH filed Critical Aufzugswerke M Schmitt & Sohn & Co GmbH
Publication of EP1439144A2 publication Critical patent/EP1439144A2/fr
Publication of EP1439144A3 publication Critical patent/EP1439144A3/fr
Withdrawn legal-status Critical Current

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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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the invention relates to a braking device for an elevator system, the vehicle and has at least one guide rail for guiding the vehicle, wherein the braking device has a safety device connected to the vehicle, which is designed so that it a relative movement of an actuator in converts a braking force acting between the safety gear and the guide rail, which causes the vehicle to brake.
  • the invention further relates to a Sink prevention device for an elevator system for preventing an automatic movement of a car during maintenance, one Speed limiter for an elevator system to prevent a Overspeed of a car and a placement device for one Lift system.
  • Elevator systems are usually attached to the car with one Safety brake provided to the elevator in case of a strong condition stop excessive speed.
  • This safety brake is also called Safety gear called.
  • the condition becomes excessive Speed detected by a monitoring cable arrangement, the one Monitoring rope pulley, a monitoring rope and a centrifugally operated Monitoring rope brake and a tension rope sheave.
  • the Monitoring rope is guided in a closed path that runs between the Tension sheave at the lower end of the path of movement and the Monitoring rope pulley extends at the upper end of the path of movement.
  • On Coupling element connects the monitoring cable to the safety gear. in the during normal operation, the coupling element pulls the monitoring cable with the Speed of the car with.
  • a safety device that can be used for this purpose is described, for example, in US Pat. No. 4,538,706 disclosed.
  • the safety gear uses a braking surface on one side of the Guide rail and a leaf spring and roller arrangement on the opposite side of the guide rail.
  • pressing the Safety gear causes an actuating rod to wedge the roller between the leaf spring arrangement and a guide rail surface.
  • This becomes the one on the opposite side of the guide rail Brake pad pressed against the opposite rail surface, creating a braking force acting on the car is generated.
  • This safety gear has a shape that wedges on both sides and thus preventing overspeed in both the up and down also allows in the downward direction.
  • There are several roles between one Wedge and a wedge guide are provided which have a relative movement between the wedge and Allow wedge guidance.
  • EP 66244 A2 describes a device for the configuration as described above Limitation of the excess speed of a car described above a Safety gear, a monitoring cable arrangement and one with the Monitoring rope has connected speed limiter.
  • the Speed limiter contains a brake for engaging in the Monitoring rope pulley, which brakes the rope due to the friction and consequently the Safety gear of the elevator system triggers. Braking takes place here Use one consisting of an electric motor and a gear Drive device that a braking element against a control signal Brake body presses.
  • the invention has for its object the braking of a vehicle Improve elevator system.
  • a braking device for an elevator system the one Vehicle and at least one guide rail for guiding the vehicle has, the braking device connected to the vehicle Safety gear which is designed so that it has a relative movement an actuating element in a between the safety gear and the guide rail acts braking force that causes braking of the vehicle, the further has a dispositiv with a brake acting on the guide rail is provided and which is movable relative to the vehicle on the guide rail, wherein the dispositive is mechanically connected to the by means of a coupling element Actuator of the safety gear is coupled such that a Relative movement between vehicle and dispositive in a relative movement of the Actuator is implemented.
  • This task is further solved by one Sink prevention device for an elevator system for preventing an automatic movement of a car during maintenance, which is such Braking device and an electrical connected to the brake of the dispositiv Has switching device by means of which the dispositive in a maintenance Braking state is offset.
  • This task is further solved by one Speed limiter for an elevator system to prevent a Overspeed of a car that has such a braking device, a Control device and one or more connected to the control device Sensors for determining the direction and speed of movement of the car, the control device being electrically connected to the dispositive is connected to the braking device and the control device is designed in such a way that if it detects an excess speed of the car, it determines the dispositive put into a braking state.
  • This task continues from one Attachment device for an elevator system solved that a vehicle and at least has a guide rail for guiding the vehicle, the Attach device with a brake acting on the guide rail is and the mounting device relative to the vehicle on the guide rail is movable.
  • the invention has the advantage that an automatic movement of a Car in the event of maintenance in a simple and inexpensive manner and Way can be prevented. If the dispositive is put into a braking state, the safety gear is activated with every movement of the car.
  • the on a guide rail of the elevator system acting brake of the dispositiv can be designed inexpensively, since this brake only for Triggering the safety gear must generate the necessary braking force and thus the Movement of the car to increase the braking effect of the device is used.
  • Another advantage of the invention is that the Sink prevention device works independently of the monitoring rope and so that there is a safe drop even if the monitoring system malfunctions of the car is prevented.
  • the Sink prevention device works independently of the monitoring rope and so that there is a safe drop even if the monitoring system malfunctions of the car is prevented.
  • the brake of the committee has a clamping device with a has electromagnetic coil and one or more brake bodies. This provides a structure optimized for the special application of the dispositive of such a brake, which is also under cost, safety and Maintenance benefits.
  • the brake of the dispositive is designed so that the currentless state supports a clamp on the guide rail and thus one Braking force generated. This increases the operational safety of the elevator system, since errors occurring in the electrical supply line to the brake lead to a Trigger the safety gear and therefore no errors unsecured operating state can arise.
  • the braking device one or more Limiting elements to limit the relative movement between the dispositive and the vehicle. This makes it possible, on the one hand, for the Actuating element of the safety gear to limit forces, a secure guidance of the reciach along the guide rail and safe engagement of the brake of the dispositiv in the guide rail guarantee.
  • Safe engagement of the brake of the dispositiv in the guide rail of the Elevator system is further improved in that the braking device with a has the guide connected to the vehicle for guiding the geber. It is particularly inexpensive to use the car frame of the vehicle To manage the dispositive.
  • a connecting rod as the coupling element, one end with the dispositive and the other end with the Actuator of the safety gear is connected, with a Relative movement between vehicle and dispositiv the actuating element Safety gear is rotated, thereby braking the Vehicle is effected.
  • the safety device is advantageously with the car frame of the Connected to the vehicle.
  • the braking device according to the invention as part of a Speed limiter used for an elevator system, so it is advantageous to use a pulse generator as a sensor and so the control device to design that the speed and direction of movement by means of Pulses from the pulse generator determined.
  • Fig. 1 shows a section of an elevator system that a Anti-sinking device has an automatic movement of a Car is prevented in the event of maintenance.
  • Fig. 1 shows a guide rail 1, an indicated vehicle 2, a Safety device 3, a coupling element 5, a dispositive 4, a coupling element 6, an electrical connection 8, a switching device 7, a monitoring cable 93, a monitoring sheave 91 and a tension sheave 92.
  • the vehicle 2 of the elevator system is, for example, by a car and a car frame formed.
  • the vehicle 2 is here by one or guided several guide rails, of which only the guide rail 1 in Fig. 1 is shown.
  • the catching device 3 is, for example, like that in US 4,536,706 or US 5,230,406 Safety devices described designed. It is possible that the Safety gear 3 in two or more guide rails of the elevator system intervenes.
  • the safety gear 3 has an actuating element. Putting on the Safety gear 3 is caused by a relative movement of the actuating element causes, with this relative movement depending on the type of Safety gear, for example, about a rotational movement or about an axial directed movement can act.
  • the relative movement of the actuator is by the mechanics of the safety gear 3 in a between safety gear and guide rail acting braking force implemented, the braking of the Vehicle 2 causes.
  • the movement of the Actuator a role or a specially designed wedge, creating a Brake body is pressed against the guide rail, a braking force is generated and the safety gear is thus put into a braking state.
  • the dispositive 4 has an electromechanical one acting on the guide rail 1 Brake 41 on.
  • the electromechanical brake 41 supports in the de-energized state a clamp on the guide rail 1 and thus generates a braking force.
  • the dispositive 4 has two or more electromechanical brakes.
  • An electromechanical brake can include an electromagnet, which exerts a force on the terminal by generating a magnetic field. It is also possible for the electromechanical brake to be an electric motor comprises, which exerts an actuating force on the terminal via a gear.
  • the brake 41 is not an electromechanical brake. at the brake 41 could also be a hydraulic or pneumatic one Act brake. Such a hydraulic or pneumatic brake could over an electrically controlled valve can be controlled. One could go further mechanical control of the control valve of such a hydraulic or pneumatic brake. Electrical monitoring would also be one such hydraulic or pneumatic brake is advantageous.
  • the dispositive 4 can be moved on the guide rail 1 relative to the vehicle 2. This means that the dispositive 4 is not fixed to the vehicle 2, but rather at least in the vertical direction in a predetermined range compared to the Vehicle 2 is slidably arranged.
  • the coupling element 5 couples the dispositive 4 to the actuating element Safety gear, so that a relative movement between the vehicle 2 and the Dispositiv 4 is implemented in a relative movement of the actuating element.
  • the coupling element 5 is, for example, a linkage, the one Relative movement of the dispositive 4 to the catching device 3 on a Actuating rod transmits, the movement of which attaches the safety gear 3 caused.
  • the monitoring cable 93 runs over the monitoring cable pulley 91 and Tensioning pulley 92.
  • a coupling element 6 is on the monitoring rope 93 attached, the monitoring cable 93 with the actuator of Safety gear 3 connects.
  • the coupling element 6 is used, for example, by a rod formed. If the vehicle 2 is moving, the monitoring cable becomes pulled along by the vehicle. This exceeds this on the actuating element exerted tractive force a certain value, the safety gear 3 in the Braking status moves and brakes the vehicle with a size of the Tractive force dependent braking force.
  • the switching element 7 is operated by a switch, for example by a Key switch, formed. However, it is also possible for the switching device 7 is formed by a relay or a semiconductor switch.
  • the shaft pit applies to the Service technician as a work surface, especially against falling objects the car to be secured. As long as a person is in the pit, may accordingly, the car that is above the person is not automatically in Set movement.
  • the switching device 7 is actuated. This moves over the electrical line 8 the dispositive 4 in the braking state, for example by it the power supply to the device is interrupted. This makes the dispositive 4 stationary fixed to the guide rail 1 of the elevator, whereby the safety device 3 in Ready position is moved: If the car falls involuntarily a relative movement between the now fixed to the guide rail 1 Dispositiv 4 and the safety device 3 generated, whereby the safety device 3rd is indented.
  • Fig. 2 shows a section of an elevator system that over a speed limiter according to the invention.
  • Fig. 2 shows in detail the vehicle 2, the guide rail 1, the Safety device 31, the dispositive 4, the coupling element 5, a coupling element 61, a controller 95, electrical connection lines 97 and 96 which Monitoring rope pulley 91, the tension pulley 92, the monitoring rope 93 and a sensor 94.
  • the vehicle 2, the safety gear 31, the coupling element 5, the guide rail 1 and the dispositive 4 are like the corresponding components according to FIG. 1 designed.
  • the coupling element 61 connects the vehicle 2 to the monitoring cable 93, without a tensile force on the actuating element of the safety gear transfer.
  • the coupling element 61 is, for example, a with rod welded to the car frame on which the monitoring cable 93 is attached.
  • the sensor 94 is a pulse generator that rotates the monitoring disk 91 in a corresponding number of Implemented voltage impulses.
  • a pulse generator has, for example Hall sensors or optoelectric components that have a corresponding implementation enable a rotary movement in electrical impulses. These electrical impulses are connected to the control device 95 via the electrical connecting line 96 fed.
  • ASIC Application Specific Integrated Circuit
  • the control device 95 determines the speed and the direction of movement of the vehicle 2 by means of the voltage pulses transmitted by the sensor 94.
  • the direction of movement of the vehicle 2 is determined by the control device 95 for example from two determined by the sensor 94 out of phase Pulse signals determined.
  • control device 95 it is of course also possible for the control device 95 to have several various types of sensors for determining the speed and the Direction of movement of the vehicle 2 is connected. For example, such Sensors of light barriers, inductive switches, infrared or Ultrasound measuring devices are formed. It is therefore also possible on the Monitoring rope pulley 91, the tensioning rope pulley 92 and the monitoring rope 93 and the speed and direction of movement of the vehicle 2 to determine in a different way.
  • control device 95 If the control device 95 detects an overspeed, it offsets how already described above, the dispositive 4 in the braking state, the dispositive 4 engaged and the safety device 3 brakes the vehicle 2.
  • control device 95 has both Overspeed in upward direction as well as overspeed in Detects downward direction and in both cases the dispositive 4 in the braking state added.
  • the safety device 3 is a safety device that can be operated both in the upward and downward direction and thus both Decelerate the car when the disposition is engaged in the upward movement as well as when the disposition engages in the downward movement.
  • the electromechanical brake 41 preferably has an electromagnet that in the excited state, a clamp prevents it from resting on the guide rail 1 support.
  • Safety gear 31 acts unnecessarily, a delay circuit can Delay between the regular braking of the drive in the event of a power failure and generate the falling solenoid on the dispositive 4. So that's it Safety gear 31 in the ready position and can act immediately as soon as the Car moves in one direction. This effect does not require Excessive speed, which increases user safety.
  • FIG. 3 shows the guide rail 1, a car frame 21, a car 22, a catching device 32, a dispositive 42, a coupling element 51 and a Actuator 52.
  • the catching device 32 is designed like the catching device 3 according to FIG. 1.
  • the Actuating element 52 is formed by a lever, safety gear 32 when applying a predetermined torque to the actuating element 52 is placed on the guide rail 1 and thus braking the Car frame 21 and thus the car 22 causes.
  • Safety gear 32 is attached to the car frame 21 at several points.
  • the dispositive 42 has two rollers 43 and 44, a brake body 45 and one electromagnetic coil 46.
  • Dispositiv 42 also has one Support frame, a spring element and an anchor.
  • the anchor is inside the electromagnetic coil 46 movably supported and with the brake body 45 connected.
  • the spring element engages the armature or the brake body 45 and presses the brake body 45 in the direction of the guide rail 1. If the electromagnetic coil 46 is excited, the magnetic field that forms a the spring force exerted force exerted on the armature, whereby the Contact pressure of the brake body 45 is canceled.
  • the rollers 43 and 44 serve to guide the dispositive 42 along the Guide rail 1.
  • the dispositive 42 it is also possible for the dispositive 42 to be different Has number of rollers and for example on the side of the brake body 45 two or more such rollers are arranged for guiding the disposable 42.
  • a on both sides of the guide rail 1 an electromagnetic coil controlled brake body is provided which at Falling of the excitation voltage is pressed against the guide rail 1.
  • the elements of the dispositive 42 described above are on the support frame assembled. Furthermore, the support frame has a hole by means of which the Connecting rod 51 is connected to the dispositive 42.
  • the braking device is connected to the car frame 21 connected guide, which is a movement of the dispositive 42 vertically to the guide rail 1, but the dispositive 42 in the horizontal direction fixed.
  • Such guidance can be done, for example, with a Car frame 21 connected guide rail or by a corresponding Forming of the vehicle frame can be realized.
  • Limiting elements advantageous, the relative movement between the dispositiv and Vehicle limited to a certain route.
  • the dispositive 42 moves as shown in FIG. 3 the car frame 21 along the guide rail 1. If, as shown in FIG. 4, the electromagnetic coil 46 is no longer excited, the brake body 45th pressed against the guide rail 1, which due to the increased friction a braking force opposite to a movement of the device 42 is generated. If, as shown in FIG. 4, the vehicle moves in the downward direction, this becomes Movement through the fixedly fixed dispositive 42 and the coupling element 51 transmit the actuator 52, whereby the safety gear 32 engages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP04000630A 2003-01-14 2004-01-14 Dispositif de freinage pour un ascenseur Withdrawn EP1439144A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10300993 2003-01-14
DE10300993A DE10300993A1 (de) 2003-01-14 2003-01-14 Bremsvorrichtung für eine Aufzuganlage

Publications (2)

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EP1439144A2 true EP1439144A2 (fr) 2004-07-21
EP1439144A3 EP1439144A3 (fr) 2008-08-27

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EP04000630A Withdrawn EP1439144A3 (fr) 2003-01-14 2004-01-14 Dispositif de freinage pour un ascenseur

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EP (1) EP1439144A3 (fr)
DE (1) DE10300993A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1806310A1 (fr) * 2004-10-27 2007-07-11 Mitsubishi Denki Kabushiki Kaisha Dispositif d'arret d'urgence pour ascenseur
WO2017023926A1 (fr) * 2015-08-04 2017-02-09 Otis Elevator Company Dispositif et procédé d'actionnement d'un frein de sécurité d'ascenseur
CN107428501A (zh) * 2015-03-12 2017-12-01 奥的斯电梯公司 可移动轿厢安装式超速调节器
WO2023148267A1 (fr) 2022-02-04 2023-08-10 Cobianchi Liftteile Ag Dispositif d'amorçage de frein
WO2023148266A1 (fr) 2022-02-04 2023-08-10 Cobianchi Liftteile Ag Dispositif de saisie de frein
US12012306B2 (en) * 2018-04-26 2024-06-18 Kone Corporation Condition monitoring of an inductive braking device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432634A2 (fr) * 1989-12-14 1991-06-19 KONE Elevator GmbH Parachute de sûreté
EP0812796A1 (fr) * 1996-06-11 1997-12-17 Mitsubishi Denki Kabushiki Kaisha Appareil de sécurité pour ascenseur
WO2000037348A1 (fr) * 1998-12-22 2000-06-29 Otis Elevator Company Mecanisme regulateur sans cable pour cabine d'ascenseur
EP1067084A1 (fr) * 1999-06-25 2001-01-10 Inventio Ag Dispositif et méthode pour éviter les glissements et les oscillations verticales sur des appareils de prise de charge pour des installations de transport vertical

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432634A2 (fr) * 1989-12-14 1991-06-19 KONE Elevator GmbH Parachute de sûreté
EP0812796A1 (fr) * 1996-06-11 1997-12-17 Mitsubishi Denki Kabushiki Kaisha Appareil de sécurité pour ascenseur
WO2000037348A1 (fr) * 1998-12-22 2000-06-29 Otis Elevator Company Mecanisme regulateur sans cable pour cabine d'ascenseur
EP1067084A1 (fr) * 1999-06-25 2001-01-10 Inventio Ag Dispositif et méthode pour éviter les glissements et les oscillations verticales sur des appareils de prise de charge pour des installations de transport vertical

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1806310A1 (fr) * 2004-10-27 2007-07-11 Mitsubishi Denki Kabushiki Kaisha Dispositif d'arret d'urgence pour ascenseur
EP1806310A4 (fr) * 2004-10-27 2012-03-21 Mitsubishi Electric Corp Dispositif d'arret d'urgence pour ascenseur
CN107428501A (zh) * 2015-03-12 2017-12-01 奥的斯电梯公司 可移动轿厢安装式超速调节器
CN107428501B (zh) * 2015-03-12 2019-12-06 奥的斯电梯公司 可移动轿厢安装式超速调节器
US10611602B2 (en) 2015-03-12 2020-04-07 Otis Elevator Company Movable car mounted overspeed governor
WO2017023926A1 (fr) * 2015-08-04 2017-02-09 Otis Elevator Company Dispositif et procédé d'actionnement d'un frein de sécurité d'ascenseur
CN107848750A (zh) * 2015-08-04 2018-03-27 奥的斯电梯公司 用于致动电梯安全制动器的装置和方法
US10894695B2 (en) 2015-08-04 2021-01-19 Otis Elevator Company Device and method for actuating an elevator safety brake
US12012306B2 (en) * 2018-04-26 2024-06-18 Kone Corporation Condition monitoring of an inductive braking device
WO2023148267A1 (fr) 2022-02-04 2023-08-10 Cobianchi Liftteile Ag Dispositif d'amorçage de frein
WO2023148266A1 (fr) 2022-02-04 2023-08-10 Cobianchi Liftteile Ag Dispositif de saisie de frein

Also Published As

Publication number Publication date
EP1439144A3 (fr) 2008-08-27
DE10300993A1 (de) 2004-07-22

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