EP3408205A1 - Bremsvorrichtung mit druckübersetzer für eine aufzugsanlage - Google Patents
Bremsvorrichtung mit druckübersetzer für eine aufzugsanlageInfo
- 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- Withdrawn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
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 (de) | 2016-01-29 | 2016-01-29 | Bremsvorrichtung mit Druckübersetzer für eine Aufzugsanlage |
| PCT/EP2017/051739 WO2017129730A1 (de) | 2016-01-29 | 2017-01-27 | Bremsvorrichtung mit druckübersetzer für eine aufzugsanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3408205A1 true EP3408205A1 (de) | 2018-12-05 |
Family
ID=57906630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17701703.5A Withdrawn EP3408205A1 (de) | 2016-01-29 | 2017-01-27 | Bremsvorrichtung mit druckübersetzer für eine aufzugsanlage |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3408205A1 (de) |
| CN (1) | CN108602644B (de) |
| DE (1) | DE102016201410A1 (de) |
| WO (1) | WO2017129730A1 (de) |
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 (de) * | 1978-11-09 | 1980-05-22 | Haug Paul | Zylinderanordnung mit pneumohydraulischer druckuebersetzung und eilgang |
| US4467605A (en) * | 1982-09-27 | 1984-08-28 | Wabco Ltd. | Hydro-pneumatic actuator with automatic slack adjuster |
| CN86204243U (zh) * | 1986-06-17 | 1987-12-16 | 孙广斌 | 车用安全备用制动装置 |
| CN2052372U (zh) * | 1989-06-29 | 1990-02-07 | 施小庆 | 牵引车挂车液压制动装置 |
| CN2250293Y (zh) * | 1996-01-08 | 1997-03-26 | 温州广银集团公司 | 活塞式液压真空增压器 |
| FR2746154B1 (fr) * | 1996-03-14 | 1998-05-29 | Frein a commande hydropneumatique | |
| US5794739A (en) * | 1996-06-14 | 1998-08-18 | Westinghouse Air Brake Company | Pneumatic pressure operated parking brake for a railway vehicle brake system |
| CN2275977Y (zh) * | 1996-10-25 | 1998-03-11 | 成都市双流县东升液压附件厂 | 车辆液压制动增压器 |
| CN2314148Y (zh) * | 1997-11-26 | 1999-04-14 | 李卫平 | 气液控制装置 |
| DE10026616B4 (de) * | 2000-05-29 | 2006-01-26 | Schunk Gmbh & Co. Kg Fabrik Für Spann- Und Greifwerkzeuge | Druckübersetzer, insbesondere hydropneumatischer Druckübersetzer |
| CN2725597Y (zh) * | 2004-09-08 | 2005-09-14 | 西南石油学院 | 一种流体增压装置 |
| DE202004019993U1 (de) * | 2004-12-21 | 2005-04-21 | VBS Fügetechnik AG | Hydropneumatische Antriebseinheit |
| AT514823A1 (de) * | 2013-10-10 | 2015-04-15 | Cobianchi Liftteile Ag | Bremsfangvorrichtung für eine Aufzugskabine |
| DE102014104865A1 (de) * | 2014-04-04 | 2015-10-08 | Thyssenkrupp Ag | Aufzug mit einer Bremsvorrichtung |
-
2016
- 2016-01-29 DE DE102016201410.2A patent/DE102016201410A1/de not_active Ceased
-
2017
- 2017-01-27 EP EP17701703.5A patent/EP3408205A1/de not_active Withdrawn
- 2017-01-27 CN CN201780008790.XA patent/CN108602644B/zh not_active Expired - Fee Related
- 2017-01-27 WO PCT/EP2017/051739 patent/WO2017129730A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN108602644B (zh) | 2020-09-29 |
| WO2017129730A1 (de) | 2017-08-03 |
| CN108602644A (zh) | 2018-09-28 |
| DE102016201410A1 (de) | 2017-08-03 |
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Owner name: THYSSENKRUPP ELEVATOR INNOVATION AND OPERATIONS AG |
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