EP4077192A1 - Aufzuganlage mit mehreren unterschiedlichen tragmitteln - Google Patents
Aufzuganlage mit mehreren unterschiedlichen tragmittelnInfo
- Publication number
- EP4077192A1 EP4077192A1 EP20829938.8A EP20829938A EP4077192A1 EP 4077192 A1 EP4077192 A1 EP 4077192A1 EP 20829938 A EP20829938 A EP 20829938A EP 4077192 A1 EP4077192 A1 EP 4077192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suspension
- different
- suspension element
- elements
- suspension elements
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
Definitions
- the present invention relates to an elevator installation.
- a car of an elevator system and its counterweight are connected with suspension means.
- a suspension element can be elongated and bendable transversely to its longitudinal direction.
- a suspension element can be a rope, a belt, a belt or the like.
- Each suspension element can have a large number of suspension strands.
- a rope-like suspension element can be composed of several suspension strands in the form of strands, usually steel strands.
- a belt-like suspension element can have a plurality of suspension strands that are received in a matrix material.
- the support means can be designed to hold the weight of the car and the counterweight.
- the suspension means can be displaced by traction with a drive pulley driven by a drive machine in order to be able to displace the car and the counterweight along travel paths.
- the suspension means can therefore also be referred to as support-traction means.
- the suspension elements can all be of the same type and have the same physical properties. Costs of the elevator system can be optimized by using the same suspension means, since material procurement and storage are possible. Furthermore, the same suspension means have essentially identical lifetimes, so that any necessary maintenance or replacement of the suspension means can be easily planned.
- EP 3 099 854 B1 describes a cable assembly.
- an elevator installation with at least one car is proposed, with at least two suspension elements with different physical properties being arranged between the car and at least one counterweight of the car.
- An elevator installation can be a passenger transport installation for transporting people.
- a rail system of the elevator installation can be arranged in a vertical elevator shaft of a building. At least one car of the elevator system and at least one counterweight per car can be guided movably in the vertical direction through the rail system.
- Suspension means of the elevator installation can run essentially parallel to the rail system. The suspension elements can be deflected by 180 ° at an upper end of the rail system.
- the support means are designed to transfer a weight of the car and the counterweight to the rail system or the building. The support means can also be deflected on the cabin and / or the counterweight.
- a suspension element can be a rope or a belt or belt.
- a rope can be made up of several strands.
- a strand can consist of a large number of filaments and / or wires. The strands can be laid in a lay direction opposite to that of the rope.
- a belt can have several strands or cords embedded next to one another. The strands or cords can be embedded in a matrix material of the belt.
- the belt or belt can be designed as a smooth belt.
- the belt or belt can alternatively be designed as a belt profiled on a surface, for example as a V-ribbed belt be.
- the strands or cords can transmit the load acting on the suspension element along a longitudinal direction of the suspension element.
- a physical property of a suspension element can reflect or influence various properties and / or functionalities of the suspension element.
- a physical property can influence the vibration behavior of the individual suspension element.
- the physical property can also influence the load-bearing capacity of the individual suspension element.
- the physical property can influence a rupture mechanism or a failure mechanism of the individual suspension element.
- the physical property can also represent or influence an elongation behavior, a bending behavior, a weight, a material composition, a surface structure or other properties of the suspension element.
- a physical property of a suspension element can also reflect or influence its chemical reactivity or other chemical properties.
- the physical properties of the various suspension elements can differ significantly, i.e. for example by more than 10%, preferably more than 20%, more than 50% or even more than 100%, relative to one another.
- the suspension means can be designed redundantly with regard to a maximum load-bearing capacity to be carried in the elevator system.
- One of the suspension elements alone can have a load-bearing capacity or load-bearing capacity that is sufficient to securely connect the car and the counterweight without the other suspension element and to hold the loads that occur during normal operation of the elevator system. If one of the suspension elements fails, damage to the other suspension element can be prevented by the suspension elements being arranged, for example, mechanically independently of one another.
- the support means can for example be attached separately to the cabin.
- the suspension elements can also each have a separate guide or deflection.
- the support means can be attached separately to the counterweight.
- One of the suspension elements can have a greater safety reserve than the other suspension element.
- a safety reserve such as must be kept at least by suspension means in an elevator system, can be specified by safety standards or regulations such as the European standard EN81.
- a safety reserve can be represented by a safety factor. The safety factor can express how much the suspension element is overdimensioned in relation to an expected load.
- One of the suspension elements can have a greater safety factor than the other suspension element. If one of the suspension elements or in one of the suspension elements breaks, the probability is very high that the suspension element with the smaller safety reserve is affected. Since the other suspension element is very likely not affected, the car can be safely stopped and evacuated. The elevator system can thus be safely taken out of operation.
- the elevator system can be monitored in a targeted manner due to the specified probability of damage.
- the elevator system can have two counterweights.
- One of the suspension elements can be connected to the one counterweight.
- the other support means can be connected to the other counterweight.
- the support means can be arranged spatially separated from one another.
- the one counterweight can be arranged on a first side of the cabin.
- the other counterweight can be arranged on the other side of the cabin.
- Each of the counterweights can be connected to at least one support means on the roof of the cabin.
- the suspension means thus run essentially in the vertical direction within an elevator shaft of the elevator installation.
- the suspension means run within the elevator shaft essentially parallel to a rail system for guiding the car and the counterweight in the vertical direction. In operation, the counterweights move in the opposite direction to the cabin.
- Each of the counterweights can possibly be held with at least two suspension elements, wherein the suspension elements can have different physical properties.
- the suspension elements can be part of different suspension element arrangements.
- One of the suspension element arrangements can have a larger number of suspension elements than the other suspension element arrangement.
- the suspension element arrangements can be composed of several essentially parallel suspension elements.
- the suspension element arrangements can consist of several individual ropes.
- the various physical properties can be adjusted using different numbers of individual ropes.
- the Suspension means arrangements have different numbers of belts. If the suspension element arrangements have the same safety factors, one suspension element arrangement can have a smaller number of suspension elements each with a larger individual load-bearing capacity, while the other suspension element arrangement can have a larger number of suspension elements each with a smaller individual load-bearing capacity.
- One of the suspension elements can have larger dimensions than the other suspension element.
- Ropes can have different rope diameters.
- Belts can have different belt widths and / or belt thicknesses. Due to different dimensions, the suspension means can have different maximum load capacities. Due to different dimensions, the suspension means can have different failure mechanisms. Due to different failure mechanisms, a simultaneous failure of both suspension elements can be very unlikely.
- the suspension elements can have different vibration properties. The different vibration properties can be achieved through different internal structures. Due to the different internal structures, the suspension elements can have different resonance frequencies. Due to the different internal structures, the suspension elements can have different failure mechanisms.
- the suspension means can have a different number of strands with the same load.
- the strands can have different stiffnesses.
- the strands can differ in terms of their material, their thickness and / or other physical properties. As a result, the resonance frequency of one suspension element can be higher than the resonance frequency of the other suspension element.
- Ropes can have different lay directions. Different directions of impact can result in a stimulation in different stimulation planes. This allows vibrations to cancel each other out.
- ropes can have different lay lengths. For example, a different lay length leads to different excitation frequencies due to contact points between the rope and the pulley at the same unwinding speed, since the Touch points have different distances due to the different lay lengths.
- the different excitation frequencies can lead to a smooth running of the cabin or a low level of noise pollution in the cabin through vibration damping. The car can thus be moved at high speeds.
- Ropes can also have different cores.
- a rope with a fiber core or a core made of synthetic fibers can have a lower density than a rope with a conventional metal core or a metal core.
- the resonance frequency of one rope can be higher than the resonance frequency of the other rope.
- the different resonance frequencies can prevent a build-up to a common resonant oscillation.
- the suspension elements can consist of different materials or material combinations. Different materials or material combinations can lead to different chemical failure mechanisms.
- a material or a material combination can be damaged by an unexpectedly occurring substance, while the other material or the other material combination is not attacked by the substance.
- the safety of the elevator system can be improved by different chemical failure mechanisms.
- the different materials or different material combinations can also lead to different vibration behavior of the suspension elements.
- the different materials or material combinations can influence a density and / or a bending behavior of the suspension elements and thus lead to different resonance frequencies.
- a suspension element can for example have strands or cords made of a metal material, while the other suspension element has strands or cords made of another metal material or a fiber material such as plastic, glass, Kevlar or carbon.
- the suspension elements can have differently shaped cross-sectional areas or be designed as different types of suspension elements.
- One suspension element can for example have at least one belt.
- the other suspension element can have at least one rope. Belts and ropes have fundamentally different failure mechanisms. This ensures that both suspension elements never fail at the same time.
- the suspension elements can have essentially the same elongation properties. Despite different physical and / or chemical properties, the suspension elements can be matched to one another in such a way that they have an essentially identical increase in length with the same load. In this way, a load on the suspension element can be balanced.
- FIG. 1 shows an illustration of an elevator installation according to an exemplary embodiment.
- the elevator installation 100 has a car 102 and a counterweight 104 for the car 102.
- the cabin 102 and the counterweight 104 are connected to one another via a first support means 106 and at least one second support means 108.
- the suspension elements 106, 108 have different physical properties.
- a car can be suspended from a large number of standard steel cables. Together, the steel cables can have a safety factor of 12, for example.
- steel cables of identical strength and performance are used to distribute the load and braking forces evenly. Since all ropes are the same, all ropes can also be tensioned equally and together reach a breaking point.
- the safety factor can be set significantly higher on one side than on the other side in order to ensure that, after an expected service life, the weaker side always reaches the breaking limit before the stronger side.
- the weaker side can be defined as a predetermined breaking limit and monitored using simple methods. For example, a break in a rope on the weaker side can be detected by slack rope contact. When the cable break is detected, a brake on the car can be activated and the elevator system can be stopped and deactivated.
- the second side is designed to be much stronger than the weak side, it can be ruled out that the break of the weak side also leads to a break of the strong side.
- the elevator system can therefore be safely evacuated and taken out of service until it is repaired.
- the ropes can alternatively or additionally have different failure mechanisms that cannot occur at the same time.
- One side can break, but the elevator system can be safely moved into a safe position using the second side.
- suspension means typically generates excitation frequencies. If these encounter systems of the elevator installation that can vibrate in response to this, there is a joint excitation and acoustic nuisance and / or vibration nuisance for the elevator users. This can be counteracted by suspension means, in particular ropes, with different physical properties. For example, ropes with different numbers of strands can be used to avoid a common excitation frequency.
- the rope elongation modules and diameter of both rope types can advantageously be chosen to be identical.
- the suspension elements 106, 108 run essentially in the vertical direction within an elevator shaft of the elevator system 100.
- the suspension elements 106, 108 run within the elevator shaft essentially parallel to a rail system for guiding the car 104 and the counterweight 104 in the vertical direction.
- the support means 106, 108 are deflected through 180 ° in order to connect the car 102 and the counterweight 104 to one another. In this way, the car 102 and the counterweight 104 are each moved in opposite directions by the support means 106, 108.
- the support means 106, 108 are redundant in terms of their load capacity. Each support means 106, 108 alone is designed to carry a weight of the cabin 102 with passengers and a weight of the counterweight 104 with a safety reserve. Should the first support means 106 be damaged, the second support means 108 can safely support and move the car 102 and the counterweight 104.
- the support means 106, 108 are guided over separate guide rollers.
- the suspension elements 106, 108 can, however, also be guided over common guide rollers in order to ensure a synchronous movement of the suspension elements 106, 108.
- the first suspension element 106 has a greater safety reserve than the second suspension element 108.
- the first suspension element 106 has a safety factor of eight, while the second suspension element 108 has a safety factor of four.
- the safety factor expresses how many times the respective suspension element 106, 108 is oversized in relation to a maximum permissible load of the elevator system 100. Together, the suspension elements 106, 108 have a safety factor of 12. Due to the different safety factors it is extremely unlikely that the first suspension element 106 will fail.
- the second suspension element 108 has a significantly higher probability of failure due to the significantly lower safety factor of four. If one of the suspension elements 106, 108 should fail, there is a very high probability that it will be the second suspension element 108. In the exemplary embodiment shown here, in particular the second suspension element 108 can be monitored.
- the elevator system 100 has a second counterweight 110.
- the second counterweight 110 is connected to the first support means 106 here.
- the first suspension element 106 is part of a first suspension element arrangement 112.
- the first suspension element arrangement 112 has six suspension elements 106.
- the second suspension element 108 is part of a second suspension element arrangement 114.
- the second suspension element arrangement 114 has four suspension elements 108.
- the suspension elements 106 of the first suspension element arrangement 112 all run over common guide rollers.
- the support means 108 of the second support means arrangement 114 run together over common guide rollers.
- the suspension element arrangements 112, 114 can have the same load-bearing capacity despite a different number of suspension elements 106, 108.
- the first suspension element 106 has a larger cross-sectional area than the second suspension element 108. If the suspension elements 106, 108 are ropes, the suspension elements 106, 08 have different rope diameters. If the suspension elements 106, 108 are belts, the suspension elements 106, 108 have different belt widths. As a result of the different dimensions, the suspension elements 106, 108 can both have different safety factors and also have different vibration properties. For example, the first suspension element 106 with the larger cross-sectional area can have a lower natural frequency than the second suspension element 108 with the smaller cross-sectional area.
- both suspension elements 106, 108 can have different failure mechanisms due to the different cross-sectional areas.
- the second suspension element 108 can be more flexible than the first suspension element 106 with the larger cross-sectional area. Due to the greater flexibility, the second suspension element 108 can be less prone to fatigue fractures.
- both suspension elements 106, 108 are ropes.
- the first support means 106 has a first internal structure.
- the second support means 108 has a second internal structure.
- the internal structure can influence the vibration properties of the suspension elements 106, 108.
- the first suspension element 106 has nine strands as the inner structure of the rope, while the second suspension element has eight strands as the inner structure. Both suspension elements have the same rope diameter and elongation properties.
- the first suspension element 106 can have a shorter lay length than the second suspension element 108.
- the lay length denotes a rope length in which a strand is wrapped completely around the rope or helically around the circumference of the rope.
- the different lay lengths result in differently spaced contact points with the guide rollers.
- the different distances between the contact points lead to different excitation frequencies of the suspension elements 106, 108 at the same movement speed.
- the resulting vibrations are transmitted by the suspension elements 106, 108 to the car 102, where they weaken and even cancel each other out due to the different excitation frequencies due to destructive interference can.
- the suspension elements 106, 108 have different materials or material combinations.
- a core of the first suspension element 106 can consist of a synthetic fiber material and thus have a lower density than a core of the second suspension element 108 made of a metal material.
- the first suspension element 106 can also have strands made of a lighter material than the strands of the second suspension element 108. Due to the different density, the suspension elements 106, 108 have different meter weights and thus different vibration properties. The lighter first suspension element 106 can have a higher natural frequency than the heavier second suspension element 108.
- the different materials can lead to different corrosion properties. Due to the different corrosion properties, one of the suspension elements 106, 108 can be insensitive to a substance, while the other suspension element 106, 108 is attacked by the substance. The different corrosion properties can lead to different failure mechanisms.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19218554 | 2019-12-20 | ||
| PCT/EP2020/087226 WO2021123310A1 (de) | 2019-12-20 | 2020-12-18 | Aufzuganlage mit mehreren unterschiedlichen tragmitteln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4077192A1 true EP4077192A1 (de) | 2022-10-26 |
| EP4077192B1 EP4077192B1 (de) | 2024-05-08 |
Family
ID=69411104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20829938.8A Active EP4077192B1 (de) | 2019-12-20 | 2020-12-18 | Aufzuganlage mit mehreren unterschiedlichen tragmitteln |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11891277B2 (de) |
| EP (1) | EP4077192B1 (de) |
| CN (1) | CN114867678B (de) |
| ES (1) | ES2982739T3 (de) |
| WO (1) | WO2021123310A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115744555B (zh) * | 2022-11-21 | 2025-12-16 | 上海三菱电梯有限公司 | 双对重电梯装置 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US568567A (en) * | 1896-09-29 | herdman | ||
| US735093A (en) * | 1903-01-31 | 1903-08-04 | Oscar Greenwald | Elevator-cable guard. |
| US1016691A (en) * | 1906-09-06 | 1912-02-06 | Otis Elevator Co | Rope-drive elevator. |
| US1132769A (en) | 1907-06-17 | 1915-03-23 | Otis Elevator Co | Traction-elevator. |
| DE60035619T2 (de) * | 2000-10-10 | 2008-04-10 | Mitsubishi Denki K.K. | Aufzugseinrichtung |
| JP4771586B2 (ja) * | 2000-12-08 | 2011-09-14 | 東芝エレベータ株式会社 | エレベータ |
| JP4108607B2 (ja) * | 2001-12-12 | 2008-06-25 | 三菱電機株式会社 | エレベータ用ロープ及びエレベータ装置 |
| CN1308215C (zh) * | 2002-09-19 | 2007-04-04 | 三菱电机株式会社 | 电梯装置 |
| EP1602613A1 (de) * | 2003-03-12 | 2005-12-07 | Mitsubishi Denki Kabushiki Kaisha | Ausgleichender aufzug mit selbstantrieb |
| JP2004338831A (ja) * | 2003-05-13 | 2004-12-02 | Mitsubishi Electric Corp | エレベータ装置 |
| JP4922665B2 (ja) | 2005-06-02 | 2012-04-25 | インベンテイオ・アクテイエンゲゼルシヤフト | 数本のケーブルを接続する、機械的にプラスの接続部を有する支持手段 |
| NZ562338A (en) * | 2006-10-31 | 2009-07-31 | Inventio Ag | Lift with two lift cages disposed one above the other in a lift shaft |
| EP1935829A1 (de) * | 2006-12-21 | 2008-06-25 | Inventio Ag | Aufzug mit zwei übereinander liegenden Aufzugskabinen in einem Schacht |
| EP2072447A1 (de) | 2007-12-20 | 2009-06-24 | Inventio Ag | Tragmittelanordnung für eine Aufzugsanlage, Aufzugsanlage mit einer solchen Tragmittelanordnung, Satz von Tragmitteln für eine solche Tragmittelanordnung und Herstellungsverfahren einer solchen Tragmittelanordnung |
| FI124541B (fi) * | 2011-05-18 | 2014-10-15 | Kone Corp | Hissijärjestely |
| US8978831B2 (en) * | 2011-11-17 | 2015-03-17 | Mitsubishi Electric Research Laboratories, Inc. | Cabling configuration for railless elevators |
| US20140353089A1 (en) * | 2013-05-28 | 2014-12-04 | Unitronics Parking Solutions Ltd. | Vehicle elevator system |
| AT515335A1 (de) | 2014-01-30 | 2015-08-15 | Teufelberger Fiber Rope Gmbh | Seilverbund |
| DE102014011378A1 (de) * | 2014-08-05 | 2016-02-11 | Thyssenkrupp Ag | Aufzuganlage |
| EP2990370B1 (de) * | 2014-09-01 | 2017-06-14 | KONE Corporation | Aufzug |
| KR20170102306A (ko) * | 2014-12-31 | 2017-09-08 | 오티스 엘리베이터 컴파니 | 엘리베이터 시스템 로핑 구성부 |
| CN104760870A (zh) * | 2015-04-14 | 2015-07-08 | 赵忠义 | 双主机驱动电梯 |
| WO2018042568A1 (ja) * | 2016-08-31 | 2018-03-08 | 三菱電機株式会社 | エレベータ装置およびエレベータ装置の制御方法 |
| CN207792401U (zh) * | 2017-10-17 | 2018-08-31 | 陕西小溪机电科技有限公司 | 一种双机曳引装置 |
-
2020
- 2020-12-18 US US17/757,254 patent/US11891277B2/en active Active
- 2020-12-18 WO PCT/EP2020/087226 patent/WO2021123310A1/de not_active Ceased
- 2020-12-18 CN CN202080087893.1A patent/CN114867678B/zh active Active
- 2020-12-18 EP EP20829938.8A patent/EP4077192B1/de active Active
- 2020-12-18 ES ES20829938T patent/ES2982739T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US11891277B2 (en) | 2024-02-06 |
| CN114867678A (zh) | 2022-08-05 |
| US20230002193A1 (en) | 2023-01-05 |
| WO2021123310A1 (de) | 2021-06-24 |
| ES2982739T3 (es) | 2024-10-17 |
| EP4077192B1 (de) | 2024-05-08 |
| CN114867678B (zh) | 2024-12-27 |
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