EP3408205A1 - Braking mechanism comprising a pressure booster for an elevator system - Google Patents
Braking mechanism comprising a pressure booster for an elevator systemInfo
- Publication number
- EP3408205A1 EP3408205A1 EP17701703.5A EP17701703A EP3408205A1 EP 3408205 A1 EP3408205 A1 EP 3408205A1 EP 17701703 A EP17701703 A EP 17701703A EP 3408205 A1 EP3408205 A1 EP 3408205A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pneumatic
- hydraulic pressure
- hydraulic
- braking device
- force
- 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- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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 a braking device for an elevator installation, a car with such a braking device, and a method for operating a braking device for an elevator installation.
- braking devices can be used as service brakes for
- Braking a movement of a car for example, be arranged on the drive or the traction sheave.
- the brakes are placed directly on the car to individually and independently decelerate the cars.
- a braking device for an elevator installation a car with such a braking device and a method for operating a braking device for an elevator installation are proposed with the features of the independent patent claims.
- Advantageous embodiments are the subject of the dependent claims and the following description.
- a braking device for an elevator system in which a (in particular high) first force for actuating or releasing a brake mechanism, which is provided for braking a movement of a car of the elevator system, by using a pneumatic hydraulic pressure booster is provided ,
- valves for blocking or releasing the pressurized fluid have a high energy requirement.
- the invention proposes the use of a pneumatic hydraulic pressure booster, so that the primary pressure can be pneumatically generated, which allows significantly smaller and lighter compressors or pumps and valves.
- a weight saving is particularly advantageous in an advantageous arrangement on the car, since the
- Braking device must be moved with the car.
- pneumatic valves can be used, which also build smaller and have a lower energy consumption.
- pneumatic valves can be used, which are about 1/25 of the power requirement of comparable
- the brake device as a service brake, which on
- Car especially a multi-car elevator system, is arranged, used.
- the weight, space and energy saving savings unfolds special advantages.
- the first force can, as mentioned, actuate the brake mechanism or solve - according to the failsafe principle - against a biasing force.
- the first force is for releasing the brake mechanism against one of a
- Biasing means provided second force acting against the first force.
- the brake mechanism preferably operates according to the failsafe principle, wherein the braking force is provided as a second force from the biasing means, in particular from a spring, and the release force as a first force.
- the use of a braking device according to the invention is particularly advantageous for releasing the braking mechanism, since in this case very large forces are necessary (about twice the operating force), since in addition to loosening still a certain air gap, usually between a brake element (usually
- a preferred pneumatic-hydraulic pressure booster has a
- the pneumatic piston area is at least ten times as large as the hydraulic piston area, i. of the
- Hydraulic pressure is at least ten times greater than the pneumatic pressure.
- At least one pneumatic valve is upstream of the
- Pneumatic-hydraulic pressure intensifier in particular upstream of the
- Pneumatic pressure chamber arranged.
- a pneumatic source such as a pneumatic connection or a compressor
- a compressor may be part of the braking device, however, as well as the braking device may only have a connection for connecting a compressed air line, so that in particular a compressor can be used to power multiple braking devices.
- the brake device has a hydraulic accumulator, which is arranged downstream of the pneumatic-hydraulic pressure booster, in particular downstream of the hydraulic pressure chamber. The hydraulic accumulator can preferably serve to leak quantities in the hydraulic system
- Unactuated position is understood in particular that the differential piston is not deflected by application of pneumatic pressure.
- the hydraulic accumulator is expediently arranged on the pneumatic-hydraulic pressure transducer that the fluid connection between the
- Hydraulic accumulator and the hydraulic pressure chamber can be interrupted by a movement of the differential piston. It is preferred that the fluid communication is interrupted when the differential piston is in an actuated position. Under actuated position is particularly understood that the differential piston is deflected by application of pneumatic pressure to actuate or release the brake mechanism. Such a separation of the hydraulic accumulator from the hydraulic pressure chamber is advantageously used to ensure that the pressure in the hydraulic accumulator is not raised to the high hydraulic pressure. Due to the high reliability and the high hydraulic pressure that can be provided by simple means, this braking device is also suitable for actuating the brake instead of releasing, which is otherwise the usual mode of operation.
- Figure 1 shows a schematic sectional view of a preferred embodiment
- Embodiment of a pneumatic hydraulic pressure intensifier used in the context of the invention.
- FIG. 2 shows a preferred embodiment of a device according to the invention
- FIG. 3 shows the braking device of Figure 2, wherein applied to the pneumatic-hydraulic pressure intensifier pneumatic pressure.
- FIG. 4 schematically shows a preferred embodiment of an elevator installation according to the invention.
- the pneumatic-hydraulic pressure booster 100 has a pneumatic pressure chamber a and a hydraulic pressure chamber b, which are connected by a differential piston 1.
- the differential piston 1 has a
- Pneumatic piston surface c and a hydraulic piston surface d on takes place in response to these a pressure increase.
- a pressure boost is achieved here, since the pneumatic piston surface c is greater than the hydraulic piston surface d.
- a prevailing in the pneumatic pressure chamber a pneumatic pressure is accordingly in a larger in the hydraulic pressure chamber b
- a hydraulic accumulator 3 is arranged, which serves to compensate for leakage amounts of the hydraulic fluid. It can be seen that the fluid connection between the hydraulic accumulator 3 and the
- Hydraulic pressure chamber b as a function of the position of the differential piston 1 is or does not exist.
- the hydraulic pressure chamber b will be connected via hydraulic lines to a hydraulic actuator, for example a movable actuator piston 2.
- a hydraulic actuator for example a movable actuator piston 2.
- the hydraulic line is not shown, but the actuator piston 2 is for better illustration also shown in the hydraulic pressure chamber b. From the ratio of
- a movement e of the differential piston 1 leads to a movement g of the actuator piston 2, which movement is used to actuate or release a brake mechanism, as shown in FIGS. 2 and 3.
- FIG. 2 shows a preferred embodiment of a braking device according to the invention is shown in a schematic sectional view and designated 1000.
- the brake device 1000 has a brake mechanism 300 and an actuating mechanism 200.
- the actuating mechanism 200 has the pneumatic-hydraulic pressure booster 100 according to FIG. 1, a situation being shown in which no pneumatic pressure is present at the pneumatic-hydraulic pressure booster.
- the pneumatic pressure chamber a of the pneumatic-hydraulic pressure intensifier 100 is connected to a number of pneumatic valves 40 with a pneumatic pressure source designed as a compressor 60 and with an outlet i, e.g. Environment, in connection.
- a pneumatic pressure source designed as a compressor 60
- an outlet i e.g. Environment
- the hydraulic pressure chamber b is connected via a hydraulic line j, which is designed here as a bore in a solid material, with the actuator piston 2 in conjunction, which is pressed by a trained as a spring 5 biasing means in a direction h. If the pneumatic pressure chamber a is pressurized, this leads to a movement of the differential piston 1 in the figure to the right, at the same time in the hydraulic pressure chamber b, a very high pressure is generated. This very high pressure is again translated in the figure, guided on the actuator piston 2, so that it moves against the second force provided by the spring 5 in the figure to the left.
- Brake mechanism 300 can be opened or closed in this way, a car brake.
- the unactuated position is shown in which there is a fluid connection between the high-pressure accumulator 3 and the hydraulic system. In this position, fluid can flow from the reservoir 3 into the hydraulic pressure chamber b in order to compensate for leakage quantities.
- an actuated position is shown in which no fluid connection between the
- High-pressure accumulator 3 and the hydraulic system is made, so that the high
- Hydraulic pressure is not in the pressure accumulator 3 prevails.
- FIG. 4 schematically shows an elevator installation 10 with a preferred one
- the elevator installation 10 is designed, in particular, as a multicar elevator installation with a large number of cars 20.
- the brake mechanism 300 of the brake device 1000 has two
- Elevator system 10 can be clamped to decelerate a movement of the car 20.
- the brake is designed according to the failsafe principle, wherein the brake elements 310, 320 by the second force of the spring fifth getting closed. In particular, during a power failure, the brake is thus closed.
- the pneumatic pressure chamber a is pressurized, in particular by means of compressed air, so that the differential piston 1 moves in the figure to the right, causing the actuator piston 2 moves against the second force provided by the spring 5 in the figure to the left and the brake elements 310, 320 opens and so movement of the car 20 relative to
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016201410.2A DE102016201410A1 (en) | 2016-01-29 | 2016-01-29 | Braking device with pressure booster for an elevator installation |
PCT/EP2017/051739 WO2017129730A1 (en) | 2016-01-29 | 2017-01-27 | Braking mechanism comprising a pressure booster for an elevator system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3408205A1 true EP3408205A1 (en) | 2018-12-05 |
Family
ID=57906630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17701703.5A Withdrawn EP3408205A1 (en) | 2016-01-29 | 2017-01-27 | Braking mechanism comprising a pressure booster for an elevator system |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3408205A1 (en) |
CN (1) | CN108602644B (en) |
DE (1) | DE102016201410A1 (en) |
WO (1) | WO2017129730A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020178832A1 (en) * | 2019-03-05 | 2020-09-10 | Dan Davidian | System and method for hydraulic-pneumatic drive with energy storage for elevators |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511336A (en) * | 1945-05-21 | 1950-06-13 | Edwin B Hudson | Fluid pressure railway brake with auxiliary hydraulic brake operating means |
DE2848591A1 (en) * | 1978-11-09 | 1980-05-22 | Haug Paul | Hydropneumatic ram with quick traverse - has stand-pipe delivering compressed air to inside of piston |
US4467605A (en) * | 1982-09-27 | 1984-08-28 | Wabco Ltd. | Hydro-pneumatic actuator with automatic slack adjuster |
CN86204243U (en) * | 1986-06-17 | 1987-12-16 | 孙广斌 | Safe reserve brake device for vehicle |
CN2052372U (en) * | 1989-06-29 | 1990-02-07 | 施小庆 | Hydraulic brake for tractor and trailer |
CN2250293Y (en) * | 1996-01-08 | 1997-03-26 | 温州广银集团公司 | Piston type hydraulic vacuum booster |
FR2746154B1 (en) * | 1996-03-14 | 1998-05-29 | HYDROPNEUMATIC CONTROL BRAKE | |
US5794739A (en) * | 1996-06-14 | 1998-08-18 | Westinghouse Air Brake Company | Pneumatic pressure operated parking brake for a railway vehicle brake system |
CN2275977Y (en) * | 1996-10-25 | 1998-03-11 | 成都市双流县东升液压附件厂 | Hydraulic brake booster for vehicle |
CN2314148Y (en) * | 1997-11-26 | 1999-04-14 | 李卫平 | Controller for gas or liquid |
DE10026616B4 (en) * | 2000-05-29 | 2006-01-26 | Schunk Gmbh & Co. Kg Fabrik Für Spann- Und Greifwerkzeuge | Pressure booster, in particular hydropneumatic pressure booster |
CN2725597Y (en) * | 2004-09-08 | 2005-09-14 | 西南石油学院 | Liquid pressurization device |
DE202004019993U1 (en) * | 2004-12-21 | 2005-04-21 | VBS Fügetechnik AG | Hydropneumatic drive unit for driving spot-welding tongs comprises a drive cylinder with hydraulic medium in a piston chamber that is interconnected in a pressure-tight and fluidic manner to a piston chamber of a driven cylinder |
AT514823A1 (en) * | 2013-10-10 | 2015-04-15 | Cobianchi Liftteile Ag | Safety brake device for an elevator car |
DE102014104865A1 (en) * | 2014-04-04 | 2015-10-08 | Thyssenkrupp Ag | Elevator with a braking device |
-
2016
- 2016-01-29 DE DE102016201410.2A patent/DE102016201410A1/en not_active Ceased
-
2017
- 2017-01-27 WO PCT/EP2017/051739 patent/WO2017129730A1/en active Application Filing
- 2017-01-27 CN CN201780008790.XA patent/CN108602644B/en not_active Expired - Fee Related
- 2017-01-27 EP EP17701703.5A patent/EP3408205A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN108602644B (en) | 2020-09-29 |
CN108602644A (en) | 2018-09-28 |
WO2017129730A1 (en) | 2017-08-03 |
DE102016201410A1 (en) | 2017-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2812218B1 (en) | Method for the use of a combined service and parking brake cylinder | |
EP2577070A1 (en) | Device having a pneumatic actuating cylinder, and method for controlling a device of said type | |
DE102013205653A1 (en) | Brake system for a vehicle and method for operating the brake system | |
EP3507505B1 (en) | Pneumatic control device | |
DE102009017031A1 (en) | Seat valve i.e. pressure maintenance valve, for use in hydraulic system for e.g. driving traction drive in industrial truck, has conical valve body pressurized by spring element in direction of releasing position | |
DE2014236C3 (en) | Brake booster for vehicles | |
EP3408205A1 (en) | Braking mechanism comprising a pressure booster for an elevator system | |
DE10258266B4 (en) | operating unit | |
WO2017129736A1 (en) | Pneumatic brake actuation in an elevator system | |
EP0612645B1 (en) | Air pressure brake for railway vehicles | |
DE102004041776A1 (en) | Device for selectively disengaging or engaging a friction clutch for motor vehicles | |
EP3724048B1 (en) | Securely closing acceleration valve for automatic compressed air brakes of rail vehicles | |
EP2829764B1 (en) | Combined clutch and brake device | |
DE102010022917A1 (en) | Clutch actuating device for use in passenger car, has additional spring i.e. compression spring, arranged in master cylinder and reducing pedal force between initial position and dead center | |
EP2444291A1 (en) | Operating brake valve with vibration-dampened guided pressure pad | |
DE2654964A1 (en) | FORCE LIMITING DEVICE FOR A PARKING BRAKE OPERATING DEVICE | |
WO2016041760A1 (en) | Method and actuation device for deicing a rail vehicle | |
DE102019204315A1 (en) | Actuating device for a switchable clutch and switchable clutch with the same | |
DE19834128B4 (en) | Service brake for a vehicle | |
EP3869061B1 (en) | Multi-stage actuating system for a braking device of an industrial truck | |
DE102022208319B3 (en) | Valve switching unit with a 2-way built-in logic valve with switchable check valve function and servo-hydraulic axis with valve switching unit | |
DE102018002488A1 (en) | Braking system of a vehicle train | |
EP0960793A1 (en) | Service brake for a vehicle | |
DE102009012952A1 (en) | Valve assembly, particularly for hydraulic pressure amplifier, has pressure restoration control edge and pressure reduction control edge, where one of both control edges is formed at valve sleeves that are inserted in housing | |
DE102022104290A1 (en) | Pneumatic control device for a hydrodynamic brake |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180829 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP ELEVATOR INNOVATION AND OPERATIONS AG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220119 |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TK ELEVATOR INNOVATION AND OPERATIONS GMBH |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230220 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230704 |