EP1733992B2 - Bremsfangvorrichtung - Google Patents

Bremsfangvorrichtung Download PDF

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Publication number
EP1733992B2
EP1733992B2 EP06115315A EP06115315A EP1733992B2 EP 1733992 B2 EP1733992 B2 EP 1733992B2 EP 06115315 A EP06115315 A EP 06115315A EP 06115315 A EP06115315 A EP 06115315A EP 1733992 B2 EP1733992 B2 EP 1733992B2
Authority
EP
European Patent Office
Prior art keywords
actuating arm
guiderail
brake
movement
unit
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.)
Active
Application number
EP06115315A
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German (de)
English (en)
French (fr)
Other versions
EP1733992A1 (de
EP1733992B1 (de
Inventor
Josef Husmann
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
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Application filed by Inventio AG filed Critical Inventio AG
Priority to EP06115315A priority Critical patent/EP1733992B2/de
Publication of EP1733992A1 publication Critical patent/EP1733992A1/de
Application granted granted Critical
Publication of EP1733992B1 publication Critical patent/EP1733992B1/de
Publication of EP1733992B2 publication Critical patent/EP1733992B2/de
Active 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • 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
    • B66B5/20—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 by means of rotatable eccentrically-mounted members
    • 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
    • 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 safety brake device for an elevator in which elevator car and counterweight are guided and movable on guide rails, wherein the elevator car or the counterweight by means of a brake unit of a trip unit on the guide rails can be fixed and the trip unit has a release arm, in frictional engagement with the Guide rail can be brought and moved by cabin movement in motion and brings the movement of the release arm brake shoes of the brake unit in contact with the guide rail according to the definition of the independent claims.
  • a safety device for a lift cage On a support element, a base plate is arranged transversely to a guide rail leading the elevator car slidably. On the base plate at least one feed lever is arranged and this opposite a brake shoe. Upon release of the brake catching device, the free end of the retracting lever comes into contact with the guide rail and is moved by the occurring, parallel to the guide rail component of the friction force in the catch position, in which the guide rail between the free end of the retraction lever and the brake shoe is clamped.
  • the retraction lever is actuated by means of a rotatable about an axis slide, which in turn is actuated by means of a rope of a speed limiter, wherein the speed limiter determines the rope in overspeed of the elevator car. Due to the relative movement of the elevator car relative to the fixed rope of the slider is set in a rotational movement and actuates the feed lever.
  • a disadvantage of the known device is that the release of the brake safety device takes place via the governor rope.
  • the tensioned over the entire shaft height limiter rope can produce noises in the elevator car due to cable vibrations and lead to false triggering of the safety brake device.
  • the speed limiter is a mechanically difficult, trouble-prone device with space requirements in the shaft head and in the shaft pit. In addition, only one speed can be monitored.
  • a safety device for a lift cage has become known.
  • an electromagnet is provided instead of the limiter.
  • the solenoid holds in the activated state a first latch lever firmly, which in turn holds a second latch lever at one end.
  • the other end of the second pawl lever engages in a groove of a spring-loaded ram, which engages a release lever.
  • a locking roller is arranged, which is movable in the event of tripping along a wedge slope and wedged with the free leg of the guide rail.
  • a disadvantage of the known device is that when triggered, the spring must accelerate the plunger and the release lever with the locking lever arranged on the long lever of the release lever. Large dead times until the effective braking of the elevator car are thus predetermined.
  • the supply of the electromagnet In the event of a power failure, the supply of the electromagnet must be buffered by means of an uninterruptible power supply so that no false tripping occurs.
  • the only acting in one direction safety gear is only suitable for small triggering speeds.
  • a safety brake device for a lift in which one side of a guide rail a brake shoe is arranged on a housing.
  • the brake shoe is parallelogram-shaped by means of links mounted on the housing and movable from a release position into a Fangstellüng, the brake shoe spring-loaded on the guide rail generates a braking force.
  • Each brake shoe, a release lever is provided, wherein the two release levers are movably connected to one another on the head side and one of the two release levers is actuated by means of limiter.
  • the release lever Upon actuation of a release lever by the governor rope, the release lever at their ends to the guide rail and are moved by the relative movement of the housing relative to the guide rail to the brake shoes out, the release lever pushing the brake shoes in the catching position.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1, solves the problem of avoiding the disadvantages of the known devices and to provide a method for engaging a brake device and to provide a safety device that easily triggers without Beipporseil in the direction of travel down and up and easily is resettable.
  • the safety brake device can be triggered with few moving parts, whereby short response times can be realized.
  • the necessary spring for triggering can be kept small because with the release spring only small masses must be accelerated.
  • the safety brake device is triggered in the direction of travel up and down by the same parts, wherein the braking force build-up is effected by the movement of the elevator car.
  • the reset of the triggering parts is accomplished by means of the parts braking the elevator car, wherein the reset energy comes from the travel movement of the elevator car. A manual release of the elevator car and brake safety device is not necessary.
  • the safety brake device can be triggered with small electrical energy, with a pulse sufficient for triggering.
  • a capacitor is sufficient as an energy storage in case of power failure.
  • the entire brake catch system is arranged on the elevator car.
  • components such as speed limiter, governor rope, tensioner, etc. omitted.
  • the release or the release of the safety brake device is no longer limited to overspeeding.
  • the triggering can take place at any other car speed or even when the elevator car is at a standstill.
  • the release can also be made by push-button operation, for example, for service purposes.
  • the safety brake device can also be used for securing the working space, for example, in the shaft head, wherein the release takes place at a standstill or at low speed of the elevator car.
  • the safety brake device engages after driving for a few centimeters.
  • To reset the elevator car is moved in the opposite direction.
  • the braking force in the direction of travel upwards is adjustable by means arranged on the brake shoe springs.
  • the elevator car or the counterweight is fixed by means of a brake unit on the guide rails, wherein a trip unit has a release arm, which generates a frictional engagement with the guide rail and can be set by the cabin movement in a rotary motion, wherein the release arm is a carrier moved with brake shoes of the brake unit.
  • the trip unit is controlled by an electrical signal that is generated, for example, if the car speed deviates from a setpoint specification.
  • Fig. 1 shows the inventive braking device 1 consisting of a brake unit 2 and a trip unit 3.
  • Each guide rail 5 of the elevator car for example, on the support frame of the elevator car arranged brake unit 2 is provided.
  • the brake unit 2 is arranged on a base plate 4, which is held by means of a centering spring 4.1 and a centering 4.2 in its rest position. So that no constraining forces arise, the base plate 4 is slidably mounted relative to a mounting plate 13 by means of bolts and slots.
  • the centering 4.2 a rail clearance s is set.
  • the brake unit 2 consists of a arranged on the base plate 4 first brake shoe 6 with first spring assemblies 7 and a triangular, rotatable support 8 with a second brake shoe 9 and a third brake shoe 10, wherein the carrier 8 of the first brake shoe 6 arranged opposite is.
  • the one corner of the carrier 8 is rotatably arranged on a first axis 11, wherein the first axis 11 is rotatably arranged on the base plate 4.
  • the first axis 11 extends to the opposite brake unit 2 and actuates the carrier with the brake shoes of the brake unit 2 at the same time.
  • the second brake shoe 9 is located at the other corner and the third brake shoe 10 is disposed at the third corner of the carrier 8.
  • the second brake shoe 9 is in the case of release, for example, at overspeed of the elevator car, up, indented, with a second spring assembly 12 affects the braking behavior of the elevator car and reduces the braking force.
  • the third brake shoe 10 is in the case of release, for example, at overspeed of the elevator car down, indented, usually no spring pack is provided to influence the braking behavior of the elevator car.
  • the trip unit 3 consists of an electromagnetic actuator 14 with locking pin 14.1, a guide pin 15 with a first compression spring 16 and a trigger arm 17, wherein the first compression spring 16 is arranged coaxially to the guide pin 15.
  • the actuator 14 may also operate on the hydraulic, pneumatic or electromotive principle.
  • the guide pin 15 is at one end with a pivot bearing 18 and the other end with the trigger arm 17 in conjunction, wherein the first compression spring 16 is supported at one end on the pivot bearing 18 and the other end on the trigger arm 17.
  • the locking pin 14.1 of the actuator 14 releases the guide pin 15, wherein the compression spring 16 moves the guide pin 15 and the release arm 17 in the direction of the guide rail 5.
  • a long slot 19 is provided, into which a bolt-like carrier 20 of the carrier 8 projects.
  • the release arm 17 can move relative to the driver 20 at least twice the rail clearance s.
  • the front side of the release arm 17 is provided with grooves 21.
  • the first compression spring 16 moves the release lever 17 to the guide rail 5, wherein the grooves 21 a frictional engagement with the guide rail 5 generate.
  • the release arm 17 is rotated by the frictional connection in a clockwise direction about the pivot bearing 18 and the carrier 8 is rotated by means of drivers 20.
  • the second brake shoe 9 comes into contact with the guide rail 5 and is further rotated up to a stop 29.
  • the first axis 11 is rotated and the carrier rotated with both brake shoes of the opposite brake unit.
  • the first brake shoe 6 is resiliently guided to the guide rail 5 and generates the necessary braking force on the guide rail. 5
  • the elevator car is moved counter to the previous direction of travel.
  • the carrier 8 with the brake shoes 9,10 is thereby turned back until the contact of the second brake shoe 9 with the guide rail 5 is lost.
  • the carrier 8 as shown schematically in FIG Fig. 4 shown, by means of a spring-loaded return roller 26 is returned to the rest position, wherein the return roller 26 rolls under the action of a force of a second compression spring 27 in a recess 25 of a cam 11 arranged on the first axis 11.
  • the rest position of the carrier 8 is monitored by means of sensor 28.
  • a limit switch 28 is provided which monitors the position of the sink 25.
  • the signal of the limit switch 28 means "brake unit engaged".
  • the safety brake device 1 can be used for an elevator with an elevator car and a counterweight or for several elevators traveling in an elevator shaft, wherein elevator car and counterweight are guided on guide rails and are connected and movable via suspension means and at abnormal speed by means of a brake unit 2 on the guide rails can be fixed, with a trip unit 3, the brake unit 2 in operation.
  • the inventive braking device 1 can be used for the shutdown of the elevator car or for the shutdown of the counterweight with selectable triggering criteria.
  • the inventive brake safety device can also be used for an autonomously running, self-propelled, rope or beltless elevator car (without counterweight).
  • Fig. 2 shows the brake catcher 1 in section with details of the trip unit 3.
  • the guide pin 15 has at the free end a conical transverse bore 14.2 into which a cone 14.3 of the locking bolt 14.1 fits.
  • At the pivot bearing 18 is supported by a bearing ring 18.1 from where the first compression spring 16 is supported.
  • the compression spring 16 moves the guide pin 15 and the trigger arm 17 in the direction of the guide rail 5.
  • the retraction of the locking bolt 14.1 or the unlocking of the brake unit 2 by means of a magnetic coil 14.4. If the solenoid coil 14.4 is acted upon by an electrical pulse, a bolt body 14.5 is pulled into the solenoid 14.4, whereupon the guide pin 15 is released.
  • Fig. 3 shows the brake catch device 1 with the reset mechanism for the release arm 17 and for the guide pin 15.
  • the release arm 17 is shown cut open.
  • a rotatable about a second axis 17.1 thrust washer 17.2 is held by a leaf spring 17.3 in rest position.
  • the second axis 17.1 and the leaf spring 17.3 are arranged on the release arm 17.
  • Fig. 5 to Fig. 8 show sequentially the engagement of the brake unit and the reset operation of the trip unit.
  • 3 Fig. 5 shows the brake unit 2 in the rest position or in the locking position.
  • the cone 14.3 of the locking bolt 14.1 holds the guide pin 15 fixed in the transverse bore 14.2.
  • the pressure plate 17.2 is centered by means of the leaf spring 17.3 and the carrier 8 by means of the return roller 26 in the valley 25.
  • Fig. 6 shows the position of the release arm 17 after the cone 14.3 has been pulled out of the transverse bore 14.2, wherein the first compression spring 16, the grooves 21 of the release arm 17 has led to the guide rail 5. If the elevator car does not move, the brake unit 2 remains in the unlocked state shown.
  • Fig. 8 shows the end position of the carrier 8 with the second brake shoe 9 on the stop 22 and the third brake shoe 10 is engaged or engaged with the guide rail 5.
  • the first brake shoe 6 is also engaged with the guide rail 5 and generates together with the third brake shoe 10 the braking force.
  • the return cam 8.1 has the trigger arm 17 and the guide pin 15 pushed back so far that the cone 14.3 slides in the transverse bore 14.2.
  • the brake unit 2 is as shown in FIG Fig. 8 locked again but still engaged. With a movement of the elevator car upwards (opposite direction), the carrier 8 is rotated clockwise and, after the third brake shoe 10 has lost contact with the guide rail 5, centered again by means of rolling into the recess 25 return roller 26 in the rest position. At the same time the pressure plate 17.2 is rotated by the leaf spring 17.3 back to the starting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Lock And Its Accessories (AREA)
  • Pens And Brushes (AREA)
  • Gear Transmission (AREA)
EP06115315A 2005-06-17 2006-06-12 Bremsfangvorrichtung Active EP1733992B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06115315A EP1733992B2 (de) 2005-06-17 2006-06-12 Bremsfangvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05105374 2005-06-17
EP06115315A EP1733992B2 (de) 2005-06-17 2006-06-12 Bremsfangvorrichtung

Publications (3)

Publication Number Publication Date
EP1733992A1 EP1733992A1 (de) 2006-12-20
EP1733992B1 EP1733992B1 (de) 2010-02-17
EP1733992B2 true EP1733992B2 (de) 2013-02-27

Family

ID=35539501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06115315A Active EP1733992B2 (de) 2005-06-17 2006-06-12 Bremsfangvorrichtung

Country Status (10)

Country Link
US (1) US7299898B2 (enrdf_load_stackoverflow)
EP (1) EP1733992B2 (enrdf_load_stackoverflow)
JP (1) JP5026743B2 (enrdf_load_stackoverflow)
KR (1) KR101227710B1 (enrdf_load_stackoverflow)
CN (1) CN1880208B (enrdf_load_stackoverflow)
AT (1) ATE457954T1 (enrdf_load_stackoverflow)
AU (1) AU2006202693B2 (enrdf_load_stackoverflow)
BR (1) BRPI0601926B1 (enrdf_load_stackoverflow)
DE (1) DE502006006147D1 (enrdf_load_stackoverflow)
ES (1) ES2341359T5 (enrdf_load_stackoverflow)

Cited By (1)

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RU2718706C1 (ru) * 2019-11-07 2020-04-14 Акционерное общество "Щербинский Лифтостроительный Завод" Ловитель

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KR20060132506A (ko) 2006-12-21
US20070007083A1 (en) 2007-01-11
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AU2006202693B2 (en) 2011-06-30
ATE457954T1 (de) 2010-03-15
JP5026743B2 (ja) 2012-09-19
CN1880208B (zh) 2010-09-15
ES2341359T3 (es) 2010-06-18
KR101227710B1 (ko) 2013-01-29
DE502006006147D1 (de) 2010-04-01
EP1733992A1 (de) 2006-12-20
AU2006202693A1 (en) 2007-01-11
CN1880208A (zh) 2006-12-20
US7299898B2 (en) 2007-11-27
ES2341359T5 (es) 2013-06-25
BRPI0601926A (pt) 2007-02-13
EP1733992B1 (de) 2010-02-17

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