EP2628700B1 - Elevator device with double-acting winch - Google Patents
Elevator device with double-acting winch Download PDFInfo
- Publication number
- EP2628700B1 EP2628700B1 EP13154743.2A EP13154743A EP2628700B1 EP 2628700 B1 EP2628700 B1 EP 2628700B1 EP 13154743 A EP13154743 A EP 13154743A EP 2628700 B1 EP2628700 B1 EP 2628700B1
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- EP
- European Patent Office
- Prior art keywords
- cable
- drive device
- winches
- load
- rope
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- 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.)
- Not-in-force
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Classifications
-
- 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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/605—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes scaffolding winshes
Definitions
- the invention relates to a drive device for a lift, with a first and a second rope pulley winch, which each have a traction sheave for interacting with a support cable.
- the invention further relates to a lift with at least one drive device.
- Propulsion devices for lifts such as winches in general, have been known for a long time and are used for lifting loads and people, especially for bridging height differences, in all areas of industry.
- One particular type of winch is the so-called rope-passing winch in which the rope is carried by the winch instead of being rolled up on the winch, for example in a drum.
- the rope may, for example, depend on one or both sides of the rope-passing winch due to gravity or due to an attacking load, so that the rope-threading does not need to store that part of the rope which has passed through the rope-passing winds. This requires that rope traversing winches basically have an unlimited lifting height or train length.
- These rope pass winches are used in particular when in a hoistway or at a building an infrastructure for attaching external winches is held or can be kept, such as temporary lift facilities on construction sites.
- Rope pulleys are used for both passenger and material transport.
- Generic rope winches usually have a traction sheave and a drive motor with a shaft for transmitting torque via the shaft to the traction sheave. These elements are usually housed together in a housing.
- the drive motor is usually an electric motor. Such rope pass winches can be obtained, for example, via the present applicant.
- Object of the present invention is therefore to provide a drive device for a lift, by means of which high loads (about 2000 to 3000 kg) can be transported and at high speeds (preferably up to 18m / min) is operable.
- a drive device should be easy to handle and easy to install on construction sites and locations for temporary lifts. It is another object of the invention to provide an improved lift that uses such a drive device.
- the object is achieved in a drive device of the type mentioned above in that the two rope pass winders arranged adjacent to each other connected to each other and are adapted to attack together on a single support cable.
- the first rope winch is configured to engage a first end of the support rope and the second rope winch is configured to engage the second end of the suspension rope.
- the support cable is guided over a pulley, in the cable section which is located between the two traction sheaves.
- the drive device could be attached to a load to be lifted, such as a passenger basket, and the diverting pulley to a building-side holding portion, such as a shaft ceiling.
- the drive device could also be arranged on the building-side holding section and the deflection roller accordingly on the load, such as the person basket.
- this provides the advantage that on the one hand the performance of the drive device is doubled by using two rope traversing winches, which are easier to handle due to their respective lower weight than a corresponding single winch with the same overall performance and easier to assemble at temporary lifts, such as on construction sites.
- the two rope pass winches are adapted to attack together on a single support cable, on the one hand for a driven by the drive device lift only a support cable is required, whereby the assembly is facilitated because only one rope is to be mounted. Furthermore, the costs are reduced.
- Another advantage is that, according to the legal provisions, in particular EN 1808, in a drive device according to the invention a rope with 9 mm diameter for material transport or 10 mm diameter for passenger transport is permitted, whereas in a single winch with double power a rope with 14 mm diameter is prescribed.
- the drive device has two rope traverses, the safety is improved. Should one of both rope winches fail due to a fault or defect, a lift by means of the drive device according to the invention is still operable, albeit only with half power.
- Conventional rope winches, as used here are usually equipped with two different speed levels. Switching is usually achieved by a pole-changing electric motor. These two driving positions are usually referred to as high-speed or slow speed and are usually designed so that the slow speed is about 9 m / min, while the high-speed is corresponding to 18 m / min.
- the first rope pulley engages the first end of the suspension rope and engages the second rope pulley on the second end of the suspension rope
- Speeds combined can be varied. For example, it is possible that the first rope-passing winch is running at 9 m / min and the second rope-passing winch is switched off. The driving speed of the device would then be correspondingly 4.5 m / min. If both rope-passing winches run at 9 m / min, the total driving speed is also 9 m / min. The same applies to other driving modes.
- the axes of rotation of the traction sheave are arranged substantially parallel to one another. This allows a compact design of the drive device and leads to a safe suspension cable guide.
- the two rope pass winches are arranged facing each other with the traction sheaves.
- the two rope traversing winders are arranged mirror-inverted to each other or rotated by 180 ° to each other.
- the two rope-passing winches are preferably arranged so that the carrying rope passes between the two rope-passing winches.
- the two rope traversing winches are substantially identical.
- the assembly is simplified due to the many common parts.
- the maintenance is also simplified. Operating personnel need not familiarize themselves with various types, as the two rope winches are identical to maintain.
- the costs are further reduced by eliminating the need for duplicate replacement parts since both rope-type winches require the same spare parts.
- the two rope-passing winches are reversibly detachable and spaced from one another by means of at least one mounting device.
- Under reversibly releasable connection here is the connecting together corresponding connecting means by force and / or positive connection in such a way that the connection is repeatedly canceled and produced to understand.
- a positive and / or non-positive connection is preferably preferred by means of screw and plug connections, clamping connections or latching connections. This is particularly advantageous if the drive device is used for a temporary lift and is to be dismantled again after use.
- the mounting device has two substantially identical mounting elements, which at least partially surround the traction sheaves in the mounted state and form a channel for the supporting cable together with the cable traversing winches.
- the mounting elements preferably each have a first and second contact portion, by means of which the mounting elements can be mounted in each case against the housing of the first and second cable traversing winches.
- the rope traversing winches or the housing of the cable traversing winches together with the two mounting elements according to this embodiment form a channel through which the carrying cable passes, the traction cable being in contact with the traction sheaves.
- the traction sheaves and the supporting cable are arranged protected and so also reduces the risk of injury.
- the mounting elements each have at least one grip area for gripping and lifting the drive device.
- the drive device is even easier to handle by the operating personnel.
- the mounting elements are arranged substantially between the two rope traversing winches, which are connected by means of the mounting elements.
- the handle sections are arranged on the mounting elements, the handle portions are preferably arranged with respect to a center of gravity of the drive device.
- the drive device has a load-receiving coupling, by means of which an attacking load can be transmitted substantially uniformly to the two rope-passing winches.
- the load-bearing coupling is preferably designed such that a load application point is arranged substantially in the middle of a connecting line between the respective load-receiving points of the respective rope-passing winches.
- the load-receiving coupling is designed substantially as a bow or rocker.
- the load-receiving coupling is preferably designed to compensate, at least in sections, relative displacement of the two rope-passing winches in such a way that an attacking load can always be transmitted substantially uniformly to the two rope-passing winches.
- the load-bearing coupling has a first and a second support arm for respectively connecting to the first and second rope-passing winches and a middle support frame for connecting to the load.
- a load is particularly easy and secure attachable to the two rope pulleys.
- the drive device comprises two or more further first and second rope traversing winches, each having a traction sheave for cooperation with one or more further corresponding supporting cables, wherein the two or more further first and second rope traversing winches are connected adjacent to each other and are adapted to attack together on the other carrying rope.
- the rope-passing winches or the interaction of the rope-passing winches are configured according to at least one of the preceding preferred embodiments.
- the object mentioned in a lift of the type mentioned above is achieved with at least one drive device according to one of the preceding preferred embodiments and a support cable, wherein in each case the first rope-passing winch at a first end of the support cable and the second Rope winch at the second end of the support rope attacks.
- the carrying cable is guided over a pulley.
- the support cable therefore has a substantially U-shaped configuration. It is particularly advantageous in this case that the support cable is guided over a deflection roller.
- the deflection roller is attached to a building-side or to a load-side holding section. If the deflection roller is attached to the building-side holding section, the drive device is preferably attached to the load-side holding section. Accordingly, the drive device is preferably attached to the building-side holding portion when the guide roller is attached to the load-side holding portion.
- a safety cable is preferably provided, on which a catching device arranged on the load-side holding section engages.
- Safety gears are devices that are designed to intercept a basket of people to be lifted by means of the lift when a maximum speed is exceeded. They are also referred to as overspeed safety gear. In general, these are mounted on the basket and measure a relative speed between the safety rope, which is arranged substantially parallel to the support cable.
- the catching device intercepts the passenger basket, for example by triggering jaws and engaging them with force or friction on the safety cable.
- the safety cable is preferably guided over a deflection roller arranged on the building-side holding section and fastened with a first end to the load-side holding section and acts with a second end with the catching device together.
- a lift 1 has a drive device 2, which has a first and a second rope-passing winch 4, 6.
- the two rope pass winches 4, 6 are connected to each other. Both rope traversing winches 4, 6 have an in Fig. 1 Not shown pulley, which each attack on the support cable 8.
- the support cable 8 is guided over a guide roller 10.
- a load 18 is attached by means of a load-receiving coupling 16.
- the load 18 is shown here (and in the other figures) only schematically and should not necessarily be construed as a solid plate.
- the load-bearing coupling 16 has a receiving rocker 20 and a rigid holder 22 which is fixed to a load-side holding portion 24.
- the deflection roller 10 is fastened by means of a hook 26 on a building-side holding portion 28.
- the holding portion 28 is disposed on a supporting portion of a structure to which the load 18 is to be raised.
- a building for example, a conventional building or a shell in question, a tower of a wind turbine, a scaffolding on construction sites or even arranged on a building exterior wall carrier.
- the rope traversing winches 4, 6 each have an electric motor 30, 32 and a housing 34, 36 (see also Fig. 2 ).
- the two rope pass winches 4, 6 are connected by means of a mounting device having two mounting elements 38, 40, substantially rigidly connected to each other.
- the two mounting elements 38, 40 with the housings 34, 36 of the cable traversing winches 4, 6 together see also Fig. 2 ).
- the support cable 8 extends between the two cable traversing winches 4, 6, in a channel which is formed by the housing 34, 36 of the rope traversing winches 4, 6 and the two mounting elements 38, 40 of the mounting device.
- the support cable 8 is guided over the guide roller 10, at the lower ends 12, 14 of the support cable 8, these hang down freely.
- the drive device 2 thus "climbs" up the support cable 8.
- the lift 1 (see Fig. 1 ) further comprises a catching device 42, which is also arranged on the load 18 or on the load-side holding portion 24.
- the safety device 42 cooperates with a safety cable 44, which is fastened with a first end 46 to the load-side holding portion 24 and cooperates with the safety device 42 with a second end 48.
- the safety cable 44 is over a Guide roller 50 out, which is also secured by a hook 52 on the building side holding portion 28.
- a weight 54 is arranged, which ensures that the safety cable 44 is guided substantially taut by the safety gear 42 so that it can reliably measure the relative speed to the safety cable 44.
- the support rope 8 remains substantially stationary, provided that the two rope traversing winches 4, 6 are operated at the same speed.
- the first rope-passing winch 4 "climbs" on one half of the carrying rope 8, the second rope-passing winch 6 accordingly on the other half. If one of the two rope-passing winches 4, 6 intentionally switched off or falls off, the load 18 is raised only at half speed. This makes it easy to control the speed.
- For the two rope traversing winches 4, 6 may be provided a common control or for each of the rope traction winches a separate control. If a common control is provided, for example, the first rope-passing winch 4 can be operated as a master and the second rope-passing winch 6 as a slave.
- FIGS. 1 and 2 In contrast to the first embodiment ( FIGS. 1 and 2 ) is here the pulley 10 by means of the hook 26 attached to the load-side holding portion 24 and the drive device 2 by means of the load-receiving coupling 16 on the building-side holding portion 28.
- the drive device 2 "therefore does not climb up on the support cable 8, but pulls by means of Supporting rope 8 the load 18 up.
- the two cable ends 12, 14 are according to this embodiment ( Figures 3 and 4 ) at the upper end, that is, at the building-side holding portion 28 facing the end of the drive device 2 by two sleeves 56, 58, so that the two ends 12, 14 of the support cable 8 can not knot and are deflected away from the building side holding portion 28.
- the safety gear 42 is in this second embodiment ( Figures 3 and 4 ) same as in the first embodiment ( FIGS. 1 and 2 ).
- the safety gear 42 could also be arranged like the drive device 2 on the building-side holding portion 28. Accordingly, then the hook 52 of the guide roller 50 would be connected to the load-side holding portion 24.
- the mounting member 38 has a substantially flat base body 60, which can be punched or cut, for example, from a sheet.
- the base body 60 three recesses 61, 62, 63 are introduced, which are identical in this embodiment. These recesses 61, 62, 63 serve on the one hand to reduce weight, on the other hand, they serve as mounting holes for mounting the mounting member 38 against the housing 34, 36 of the cable traction winches 4.6.
- each handle portion 70, 72 is arranged with a corresponding handle 71, 73. In the assembled state can thus be easier to handle the drive device 2.
- an eyelet 74 is further formed. In this eyelet 74, for example, a crane hook can engage in order to transport a mounted drive device 2 easier.
- the (not shown here) second mounting member 40 is identical to the mounting member 38 is formed.
- a receiving rocker 20 a load-receiving coupling 16 is shown.
- the receiving rocker 20 has a first support arm 80 and a second support arm 82, which are connectable to one of the two cable traversing winches 4, 6.
- a central support frame 84 is arranged between the two support arms 80, 82 .
- the support frame 84 has a substantially rectangular base body 86.
- the two support arms 80, 82 are integrally formed on opposite corners of the support frame 84.
- At two opposite sides of the main body 86 are two holes 88, 90 arranged coaxially with each other.
- the other two sides 83, 85 are free of holes.
- Through the holes 88, 90 for example, a pin or bolt can be arranged, by means of which the holder 22 can be fastened to the receiving rocker 20.
- FIG. 6 At the two support arms 80, 82 are in Fig. 6 represented two connecting pieces 92, 94 pivotally attached by means of pins 95, 96.
- the connecting pieces 92, 94 are directly connected to the cable traversing winches 4, 6 and serve to allow a certain balance of assembly inaccuracies.
- the receiving rocker 20 which is part of the mounting coupling 16, engages a load (in FIG. 6 not shown) substantially in the middle of the connecting line between the two load-receiving points of the corresponding rope traversing winches 4, 6 at.
- the rectangular base body 86 of the support frame 84 is designed so that an assembly-related distance (perpendicular to the central axis of the holes 88, 90) and an assembly-related offset (along the central axis of the holes 88, 90) is compensated.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Description
Die Erfindung betrifft eine Antriebsvorrichtung für einen Lift, mit einer ersten und einer zweiten Seildurchlaufwinde, welche jeweils eine Treibscheibe zum Zusammenwirken mit einem Tragseil aufweisen. Die Erfindung betrifft ferner einen Lift mit wenigstens einer Antriebsvorrichtung.The invention relates to a drive device for a lift, with a first and a second rope pulley winch, which each have a traction sheave for interacting with a support cable. The invention further relates to a lift with at least one drive device.
Antriebsvorrichtungen für Lifte, wie etwa Winden im Allgemeinen, sind seit langer Zelt bekannt und werden zum Anheben von Lasten und Personen, insbesondere zum Überbrücken von Höhenunterschieden, in allen Bereichen der Industrie eingesetzt. Eine bestimmte Art von Winden sind die sogenannten Seildurchlaufwinden, bei denen das Seil durch die Winde durchgeführt wird, anstatt es auf der Winde aufzurollen, beispielsweise in einer Trommel. Das Seil kann beispielsweise auf einer oder beiden Seiten der Seildurchlaufwinde schwerkraftbedingt oder aufgrund einer angreifenden Last herabhängen, so dass die Seildurchwinde denjenigen Teil des Seiles, der durch die Seildurchlaufwinde hindurchgelaufen ist, nicht zu speichern braucht. Dies bedingt, dass Seildurchlaufwinden grundsätzlich eine unbegrenzte Hubhöhe bzw. Zuglänge aufweisen. Diese Seildurchlaufwinden kommen insbesondere dann zum Einsatz, wenn in einem Hubschacht oder an einem Gebäude eine Infrastruktur zum Befestigen externer Winden vorgehalten wird oder vorgehalten werden kann, wie beispielsweise temporäre Lift-Anlagen auf Baustellen. Seildurchlaufwinden werden sowohl für den Personen- als auch den Materialtransport eingesetzt.Propulsion devices for lifts, such as winches in general, have been known for a long time and are used for lifting loads and people, especially for bridging height differences, in all areas of industry. One particular type of winch is the so-called rope-passing winch in which the rope is carried by the winch instead of being rolled up on the winch, for example in a drum. The rope may, for example, depend on one or both sides of the rope-passing winch due to gravity or due to an attacking load, so that the rope-threading does not need to store that part of the rope which has passed through the rope-passing winds. This requires that rope traversing winches basically have an unlimited lifting height or train length. These rope pass winches are used in particular when in a hoistway or at a building an infrastructure for attaching external winches is held or can be kept, such as temporary lift facilities on construction sites. Rope pulleys are used for both passenger and material transport.
Gattungsgemäße Seildurchlaufwinden weisen in der Regel eine Treibscheibe und einen Antriebsmotor mit einer Welle zum Übertragen eines Drehmoments über die Welle auf die Treibscheibe auf. Diese Elemente sind meist gemeinsam in einem Gehäuse untergebracht. Der Antriebsmotor ist meist ein Elektromotor. Derartige Seildurchlaufwinden können beispielsweise über die hiesige Anmelderin bezogen werden.Generic rope winches usually have a traction sheave and a drive motor with a shaft for transmitting torque via the shaft to the traction sheave. These elements are usually housed together in a housing. The drive motor is usually an electric motor. Such rope pass winches can be obtained, for example, via the present applicant.
Prinzipbedingt ist bei derartigen im Stand der Technik bekannten Antriebsvorrichtungen zu beachten, dass bei steigender Last gleichzeitig die Fahrgeschwindigkeit aufgrund der begrenzten Leistung abnimmt. Aufgrund der immer größer werdenden Fahrlängen, die mittels derartiger Antriebsvorrichtungen bzw. Lifte überbrückt werden müssen und der Anforderung, immer schwerere Lasten transportieren zu können, besteht allerdings ein Bedarf an Antriebsvorrichtungen, mittels denen auch große Lasten (beispielsweise etwa 2000 bis 3000 Kg) bei annehmbaren, d.h. relativ hohen Fahrgeschwindigkeiten transportiert werden können, etwa der zulässigen Höchstgeschwindigkeit der EN 1808, d.h. 18 m/min. Teilweise werden dazu größer dimensionierte Winden, insbesondere Seildurchlaufwinden eingesetzt, die über einen stärkeren Antriebsmotor verfügen. Allerdings sind derartige Winden recht unhandlich und weisen ein hohes Gewicht auf, so dass sie sich nur bedingt für den Einsatz auf Baustellen und als Einsatz in temporären Liften eignen.Due to the principle is to be noted in such known in the art drive devices that at the same time decreases the driving speed due to the limited power with increasing load. However, due to the ever-increasing travel lengths that must be bridged by such drive devices or lifts and the requirement to be able to transport ever heavier loads, there is a need for drive devices by which even large loads (for example, about 2000 to 3000 Kg) are acceptable ie relatively high speeds, such as the maximum permissible speed of EN 1808, i. 18 m / min. Partly larger sized winches, especially rope winches are used, which have a stronger drive motor. However, such winches are quite unwieldy and have a high weight, so that they are only partially suitable for use on construction sites and as an insert in temporary lifts.
Aus
Aufgabe der vorliegenden Erfindung ist es daher, eine Antriebsvorrichtung für einen Lift anzugeben, mittels der hohe Lasten (etwa 2000 bis 3000 Kg) transportierbar und die mit hohen Geschwindigkeiten (vorzugsweise bis zu 18m/min) betreibbar ist. Insbesondere soll eine derartige Antriebsvorrichtung leicht handzuhaben und auf Baustellen und Orten für temporäre Lifte einfach montierbar sein. Ferner ist es Aufgabe der Erfindung, einen verbesserten Lift anzugeben, der eine derartige Antriebsvorrichtung nutzt.Object of the present invention is therefore to provide a drive device for a lift, by means of which high loads (about 2000 to 3000 kg) can be transported and at high speeds (preferably up to 18m / min) is operable. In particular, such a drive device should be easy to handle and easy to install on construction sites and locations for temporary lifts. It is another object of the invention to provide an improved lift that uses such a drive device.
Die Aufgabe wird bei einer Antriebsvorrichtung der eingangs genannten Art dadurch gelöst, dass die beiden Seildurchlaufwinden benachbart zueinander angeordnet miteinander verbunden sind, und dazu eingerichtet sind, gemeinsam an einem einzigen Tragseil anzugreifen. Die erste Seildurchlaufwinde ist dazu eingerichtet, an einem ersten Ende des Tragseils anzugreifen und die zweite Seildurchlaufwinde ist dazu eingerichtet, an dem zweiten Ende des Tragseils anzugreifen. Das Tragseil wird dabei über eine Umlenkrolle geführt, und zwar in dem Seilabschnitt, der zwischen den beiden Treibscheiben befindlich ist. Demnach könnte die Antriebsvorrichtung in einer ersten Ausführungsform an einer zu hebenden Last, wie beispielsweise einem Personenkorb, befestigt sein und die Umlenkrolle an einem bauwerkseitigen Halteabschnitt, wie beispielsweise an einer Schachtdecke. Anders herum könnte in einer zweiten Ausführungsform auch die Antriebsvorrichtung an dem bauwerkseitigen Halteabschnitt angeordnet sein und die Umlenkrolle dementsprechend an der Last, wie etwa dem Personenkorb.
Erfindungsgemäß wird hierdurch der Vorteil erreicht, dass einerseits die Leistung der Antriebsvorrichtung durch Verwendung zweier Seildurchlaufwinden verdoppelt ist, welche aufgrund ihres jeweils geringeren Gewichts als eine entsprechende einzelne Winde mit gleicher Gesamtleistung einfacher handzuhaben und bei temporären Liftanlage, wie etwa auf Baustellen einfacher zu montieren sind. Indem die beiden Seildurchlaufwinden dazu eingerichtet sind, gemeinsam an einem einzigen Tragseil anzugreifen, ist einerseits für einen mittels der Antriebsvorrichtung anzutreibenden Lift nur ein Tragseil erforderlich, wodurch die Montage erleichtert wird, da nur ein Seil zu montieren ist. Ferner sind auch die Kosten reduziert. Ein weiterer Vorteil ist, dass gemäß den gesetzlichen Bestimmungen, insbesondere EN 1808, bei einer erfindungsgemäßen Antriebsvorrichtung ein Seil mit 9 mm Durchmesser für Materialtransporte oder 10 mm Durchmesser für Personentransporte zugelassen ist, wohingegen bei einer einzelnen Seilwinde mit doppelter Leistung ein Seil mit 14 mm Durchmesser vorgeschrieben ist.
Indem die Antriebsvorrichtung zwei Seildurchlaufwinden aufweist, ist auch die Sicherheit verbessert. Sollte eine von beiden Seildurchlaufwinden aufgrund eines Fehlers oder Defekts ausfallen, ist ein Lift mittels der erfindungsgemäßen Antriebsvorrichtung immer noch betreibbar, wenn auch nur mit halber Leistung.
Ein weiterer Vorteil, der sich daraus ergibt, dass die beiden Seildurchlaufwinden dazu eingerichtet sind, an einem einzigen Tragseil anzugreifen, wobei das Tragseil über eine Umlenkrolle geführt ist, sodass die beiden Seildurchlaufwinden von zwei gegenüberliegenden Seiten aus an dem Tragseil angreifen, ist derjenige, dass unterschiedliche Geschwindigkeiten der beiden Seildurchlaufwinden ausgeglichen werden können. Ferner ist es möglich, den Geschwindigkeitsbereich der Antriebsvorrichtung zu variieren. Herkömmliche Seildurchlaufwinden, wie sie auch hier zum Einsatz kommen können, sind in der Regel mit zwei verschiedenen Geschwindigkeitsstufen ausgestattet. Das Umschalten wird in der Regel durch einen polumschaltbaren Elektromotor erreicht. Diese beiden Fahrpositionen werden in der Regel als Schnelllauf bzw. Langsamlauf bezeichnet und sind meist so ausgestaltet, dass der Langsamlauf etwa 9 m/min beträgt, während der Schnelllauf entsprechend 18 m/min beträgt. Indem zwei Seildurchlaufwinden vorgesehen sind, die dazu eingerichtet sind gemeinsam an dem einen Tragseil anzugreifen und bei denen das Tragseil über eine Umlenkrolle geführt ist, wobei die erste Seildurchlaufwinde am ersten Ende des Tragseils angreift und die zweite Seildurchlaufwinde am zweiten Ende des Tragseils angreift, können diese Geschwindigkeiten kombiniert variiert werden. Beispielsweise ist es möglich, dass die erste Seildurchlaufwinde mit 9 m/min läuft und die zweite Seildurchlaufwinde abgeschaltet ist. Die Fahrgeschwindigkeit der Vorrichtung würde dann entsprechend 4,5 m/min betragen. Laufen beide Seildurchlaufwinden mit 9 m/min, beträgt die Gesamtfahrgeschwindigkeit ebenfalls 9 m/min. Entsprechendes gilt für weitere Fahrmodi. Dies ist besonders vorteilhaft bei hohen Fahrlängen, bei denen ein weiter Bereich mit möglichst hoher Geschwindigkeit durchfahren werden soll, jedoch in Anfangs- und Endbereichen ein genaueres Manövrieren notwendig ist. Mittels einer erfindungsgemäßen Antriebsvorrichtung ist das Fahren nicht nur mit der sonst üblichen Minimalgeschwindigkeit, 9 m/min, möglich, sondern ebenfalls mit einer noch geringeren, nämlich der Hälfte, also 4,5 m/min. Hierdurch ist ein sehr genaues Manövrieren möglich, wodurch die Handhabbarkeit und die Sicherheit verbessert sind.The object is achieved in a drive device of the type mentioned above in that the two rope pass winders arranged adjacent to each other connected to each other and are adapted to attack together on a single support cable. The first rope winch is configured to engage a first end of the support rope and the second rope winch is configured to engage the second end of the suspension rope. The support cable is guided over a pulley, in the cable section which is located between the two traction sheaves. Thus, in a first embodiment, the drive device could be attached to a load to be lifted, such as a passenger basket, and the diverting pulley to a building-side holding portion, such as a shaft ceiling. Conversely, in a second embodiment, the drive device could also be arranged on the building-side holding section and the deflection roller accordingly on the load, such as the person basket.
According to the invention, this provides the advantage that on the one hand the performance of the drive device is doubled by using two rope traversing winches, which are easier to handle due to their respective lower weight than a corresponding single winch with the same overall performance and easier to assemble at temporary lifts, such as on construction sites. By the two rope pass winches are adapted to attack together on a single support cable, on the one hand for a driven by the drive device lift only a support cable is required, whereby the assembly is facilitated because only one rope is to be mounted. Furthermore, the costs are reduced. Another advantage is that, according to the legal provisions, in particular EN 1808, in a drive device according to the invention a rope with 9 mm diameter for material transport or 10 mm diameter for passenger transport is permitted, whereas in a single winch with double power a rope with 14 mm diameter is prescribed.
By the drive device has two rope traverses, the safety is improved. Should one of both rope winches fail due to a fault or defect, a lift by means of the drive device according to the invention is still operable, albeit only with half power.
Another advantage, which results from the fact that the two rope traction winches are adapted to engage a single carrying rope, wherein the carrying rope is guided over a deflection roller, so that the two rope traction winches act on the traction rope from two opposite sides, is that different speeds of the two rope pass winches can be compensated. Furthermore, it is possible to vary the speed range of the drive device. Conventional rope winches, as used here are usually equipped with two different speed levels. Switching is usually achieved by a pole-changing electric motor. These two driving positions are usually referred to as high-speed or slow speed and are usually designed so that the slow speed is about 9 m / min, while the high-speed is corresponding to 18 m / min. By providing two rope pass winches which are adapted to engage together on the one support rope and in which the suspension rope is passed over a pulley, the first rope pulley engages the first end of the suspension rope and engages the second rope pulley on the second end of the suspension rope Speeds combined can be varied. For example, it is possible that the first rope-passing winch is running at 9 m / min and the second rope-passing winch is switched off. The driving speed of the device would then be correspondingly 4.5 m / min. If both rope-passing winches run at 9 m / min, the total driving speed is also 9 m / min. The same applies to other driving modes. This is particularly advantageous in the case of long driving lengths, in which a wide range is to be traversed with the highest possible speed, but more precise maneuvering is necessary in the starting and ending areas. By means of a drive device according to the invention driving is possible not only with the usual minimum speed, 9 m / min, but also with an even lower, namely half, ie 4.5 m / min. As a result, a very accurate maneuvering is possible, whereby the handling and safety are improved.
In einer ersten bevorzugten Ausführungsform sind die Drehachsen der Treibscheibe im Wesentlichen parallel zueinander angeordnet. Dies ermöglicht eine kompakte Bauform der Antriebsvorrichtung und führt zu einer sicheren Tragseilführung.In a first preferred embodiment, the axes of rotation of the traction sheave are arranged substantially parallel to one another. This allows a compact design of the drive device and leads to a safe suspension cable guide.
Vorzugsweise sind die beiden Seildurchlaufwinden mit den Treibscheiben einander zugewandt angeordnet. Beispielsweise sind die beiden Seildurchlaufwinden spiegelverkehrt zueinander angeordnet bzw. um 180° verdreht zueinander angeordnet. Die beiden Seildurchlaufwinden sind vorzugsweise so angeordnet, dass das Tragseil zwischen den beiden Seildurchlaufwinden hindurchläuft. Indem die beiden Seildurchlaufwinden mit den Treibscheiben einander zugewandt angeordnet sind, kann das Tragseil zwischen den beiden Seildurchlaufwinden hindurchlaufen, und muss nicht an einer Außenseite der Antriebsvorrichtung vorbei geführt werden. Dadurch ist die Betriebssicherheit erhöht und eine verbesserte Seilführung erreicht.Preferably, the two rope pass winches are arranged facing each other with the traction sheaves. For example, the two rope traversing winders are arranged mirror-inverted to each other or rotated by 180 ° to each other. The two rope-passing winches are preferably arranged so that the carrying rope passes between the two rope-passing winches. By the two rope traversing winches are arranged facing each other with the traction sheaves, the support cable can pass between the two rope traversing winches, and must not be passed on an outside of the drive device over. As a result, the reliability is increased and achieved an improved cable guide.
Ferner ist bevorzugt, dass die beiden Seildurchlaufwinden im Wesentlichen baugleich sind. Dadurch werden einerseits Kosten gespart, indem Skaleneffekte genutzt werden können, andererseits ist auch die Montage aufgrund der vielen Gleichteile vereinfacht. Ferner ist ebenfalls die Wartung vereinfacht. Bedienungspersonal muss sich nicht mit verschiedenen Bauarten vertraut machen, da die beiden Seildurchlaufwinden sind identisch zu warten sind. Ferner sind die Kosten weiter reduziert, indem keine doppelten Ersatzteile vorgehalten werden müssen, da beide Seildurchlaufwinden dieselben Ersatzteile benötigen.Furthermore, it is preferred that the two rope traversing winches are substantially identical. As a result, on the one hand costs are saved by economies of scale can be used, on the other hand, the assembly is simplified due to the many common parts. Furthermore, the maintenance is also simplified. Operating personnel need not familiarize themselves with various types, as the two rope winches are identical to maintain. Furthermore, the costs are further reduced by eliminating the need for duplicate replacement parts since both rope-type winches require the same spare parts.
Gemäß einer weiteren bevorzugten Ausführungsform sind die beiden Seildurchlaufwinden mittels wenigstens einer Montageeinrichtung reversibel lösbar und beabstandet zueinander miteinander verbunden. Unter reversibel lösbarem Verbinden ist hier das Verbinden miteinander korrespondierender Verbindungsmittel mittels Kraft- und/oder Formschluss derart, dass die Verbindung wiederholt aufhebbar und herstellbar ist, zu verstehen. Bevorzugt ist hier insbesondere eine form- und/oder kraftschlüssige Verbindung vorzugsweise mittels Schraub- und Steckverbindungen, Klemmverbindungen oder Rastverbindungen. Dies ist insbesondere vorteilhaft, wenn die Antriebsvorrichtung für einen temporären Lift verwendet wird und nach Nutzung wieder zu demontieren ist.According to a further preferred embodiment, the two rope-passing winches are reversibly detachable and spaced from one another by means of at least one mounting device. Under reversibly releasable connection here is the connecting together corresponding connecting means by force and / or positive connection in such a way that the connection is repeatedly canceled and produced to understand. Here, in particular, a positive and / or non-positive connection is preferably preferred by means of screw and plug connections, clamping connections or latching connections. This is particularly advantageous if the drive device is used for a temporary lift and is to be dismantled again after use.
Bevorzugt weist die Montageeinrichtung zwei im Wesentlichen baugleiche Montageelemente auf, welche im montierten Zustand die Treibscheiben wenigstens teilweise einfassen und gemeinsam mit den Seildurchlaufwinden einen Kanal für das Tragseil bilden. Die Montageelemente weisen vorzugsweise jeweils einen ersten und zweiten Kontaktabschnitt auf, mittels welchem die Montageelemente jeweils gegen die Gehäuse der ersten und zweiten Seildurchlaufwinden montierbar sind. Insgesamt bilden die Seildurchlaufwinden bzw. die Gehäuse der Seildurchlaufwinden gemeinsam mit den beiden Montageelementen gemäß dieser Ausführungsform einen Kanal, durch den das Tragseil hindurchläuft, wobei das Tragseil dabei in Kontakt mit den Treibscheiben steht. Dadurch sind die Treibscheiben und das Tragseil geschützt angeordnet und so auch das Verletzungsrisiko verringert.Preferably, the mounting device has two substantially identical mounting elements, which at least partially surround the traction sheaves in the mounted state and form a channel for the supporting cable together with the cable traversing winches. The mounting elements preferably each have a first and second contact portion, by means of which the mounting elements can be mounted in each case against the housing of the first and second cable traversing winches. Overall, the rope traversing winches or the housing of the cable traversing winches together with the two mounting elements according to this embodiment form a channel through which the carrying cable passes, the traction cable being in contact with the traction sheaves. As a result, the traction sheaves and the supporting cable are arranged protected and so also reduces the risk of injury.
Ferner ist bevorzugt, dass die Montageelemente jeweils wenigstens einen Griffbereich zum Ergreifen und Anheben der Antriebsvorrichtung aufweisen. Dadurch ist die Antriebsvorrichtung vom Bedienpersonal noch einfacher handzuhaben. Bevorzugt sind die Montageelemente im Wesentlichen zwischen den beiden Seildurchlaufwinden angeordnet, die mittels der Montageelemente verbunden sind. Indem die Griffabschnitte an den Montageelementen angeordnet sind, sind die Griffabschnitte in Bezug auf einen Schwerpunkt der Antriebsvorrichtung bevorzugt angeordnet.Furthermore, it is preferred that the mounting elements each have at least one grip area for gripping and lifting the drive device. As a result, the drive device is even easier to handle by the operating personnel. Preferably, the mounting elements are arranged substantially between the two rope traversing winches, which are connected by means of the mounting elements. By the handle sections are arranged on the mounting elements, the handle portions are preferably arranged with respect to a center of gravity of the drive device.
Gemäß einer weiteren bevorzugten Ausführungsform weist die Antriebsvorrichtung eine Lastaufnahme-Kupplung auf, mittels welcher eine angreifende Last im Wesentlichen gleichmäßig auf die beiden Seildurchlaufwinden übertragbar ist. Die Lastaufnahme-Kupplung ist vorzugsweise so ausgebildet, dass ein Lastangriffspunkt im Wesentlichen in der Mitte einer Verbindungslinie zwischen den jeweiligen Lastaufnahmepunkten der jeweiligen Seildurchlaufwinden angeordnet ist. Vorzugsweise ist die Lastaufnahme-Kupplung im Wesentlichen als Bügel oder Schwinge ausgebildet. Die Lastaufnahme-Kupplung ist vorzugsweise ausgebildet, wenigstens abschnittsweise relatives Verschieben der beiden Seildurchlaufwinden derart auszugleichen, dass eine angreifende Last stets im Wesentlichen gleichmäßig auf die beiden Seildurchlaufwinden übertragbar ist.According to a further preferred embodiment, the drive device has a load-receiving coupling, by means of which an attacking load can be transmitted substantially uniformly to the two rope-passing winches. The load-bearing coupling is preferably designed such that a load application point is arranged substantially in the middle of a connecting line between the respective load-receiving points of the respective rope-passing winches. Preferably, the load-receiving coupling is designed substantially as a bow or rocker. The load-receiving coupling is preferably designed to compensate, at least in sections, relative displacement of the two rope-passing winches in such a way that an attacking load can always be transmitted substantially uniformly to the two rope-passing winches.
Vorzugsweise weist die Lastaufnahme-Kupplung einen ersten und einen zweiten Tragarm zum jeweiligen Verbinden mit der ersten und zweiten Seildurchlaufwinde und einen mittleren Tragrahmen zum Verbinden mit der Last auf. Dadurch ist eine Last besonders einfach und sicher an den beiden Seildurchlaufwinden befestigbar.Preferably, the load-bearing coupling has a first and a second support arm for respectively connecting to the first and second rope-passing winches and a middle support frame for connecting to the load. As a result, a load is particularly easy and secure attachable to the two rope pulleys.
Gemäß einer weiteren bevorzugten Ausführungsform weist die Antriebsvorrichtung zwei oder mehr weitere erste und zweite Seildurchlaufwinden auf, welche jeweils eine Treibscheibe zum Zusammenwirken mit einem oder mehreren weiteren entsprechenden Tragseilen aufweisen, wobei die zwei oder mehr weiteren ersten und zweiten Seildurchlaufwinden benachbart zueinander angeordnet miteinander verbunden sind und dazu eingerichtet sind, gemeinsam an dem weiteren Tragseil anzugreifen. Dies ist besonders vorteilhaft, wenn größere Lasten oder räumlich größere Körbe bzw. Personenkörbe angehoben werden sollen. Die Seildurchlaufwinden bzw. das Zusammenwirken der Seildurchlaufwinden ist gemäß dieser bevorzugten Ausführungsform entsprechend wenigstens einer der vorstehenden bevorzugten Ausführungsformen ausgestaltet. Für die Vorteile wird auf das Obenstehende verwiesen.According to a further preferred embodiment, the drive device comprises two or more further first and second rope traversing winches, each having a traction sheave for cooperation with one or more further corresponding supporting cables, wherein the two or more further first and second rope traversing winches are connected adjacent to each other and are adapted to attack together on the other carrying rope. This is particularly advantageous when larger loads or larger baskets or people baskets to be raised. According to this preferred embodiment, the rope-passing winches or the interaction of the rope-passing winches are configured according to at least one of the preceding preferred embodiments. For the benefits, reference is made to the above.
Gemäß einem weiteren Aspekt der Erfindung wird die eingangs genannte Aufgabe bei einem Lift der eingangs genannten Art gelöst mit wenigstens einer Antriebsvorrichtung nach einer der vorstehenden bevorzugten Ausführungsformen und einem Tragseil, wobei jeweils die erste Seildurchlaufwinde an einem ersten Ende des Tragseils und die zweite Seildurchlaufwinde an dem zweiten Ende des Tragseils angreift. Das Tragseil ist über eine Umlenkrolle geführt. Das Tragseil weist demnach eine im Wesentlichen U-förmigen Konfiguration auf. Besonders vorteilhaft ist hierbei, dass das Tragseil über eine Umlenkrolle geführt ist. Dadurch ergeben sich die schon oben bezüglich einer Antriebseinrichtung erwähnten Vorteile, bei der die beiden Seildurchlaufwinden dazu eingerichtet sind an einem einzigen Tragseil anzugreifen, wobei insbesondere das Tragseil über eine Umlenkrolle geführt ist, sodass die beiden Seildurchlaufwinden von zwei gegenüberliegenden Seiten aus an dem Tragseil angreifen. Insofern wird auf die obigen bevorzugten Ausführungsformen der Antriebsvorrichtung vollumfänglich Bezug genommen.
Gemäß einer Ausführungsform ist die Umlenkrolle an einem bauwerkseitigen oder an einem lastseitigen Halteabschnitt angebracht. Ist die Umlenkrolle an dem bauwerkseitigen Halteabschnitt angebracht, ist die Antriebsvorrichtung vorzugsweise an dem lastseitigen Halteabschnitt angebracht. Entsprechend ist die Antriebsvorrichtung vorzugsweise an dem bauwerkseitigen Halteabschnitt angebracht, wenn die Umlenkrolle an dem lastseitigen Halteabschnitt angebracht ist. Je nach Anwendungsfall ist die eine oder andere Variante bevorzugt. In dem einen Fall handelt es sich um eine so genannte "mitfahrende Winde", die an dem Seil "heraufklettert". In dem anderen Fall handelt es sich um eine so genannte fest montierte Winde, die eine Liftkabine oder eine Last hinaufzieht.
Weiterhin ist bevorzugt ein Sicherheitsseil vorgesehen, an welchem eine an dem lastseitigen Halteabschnitt angeordnete Fangvorrichtung angreift. Fangvorrichtungen sind Einrichtungen, die dazu eingerichtet sind, einen Personenkorb, der mittels des Lifts angehoben werden soll, bei einem Überschreiten einer Maximalgeschwindigkeit abzufangen. Sie werden auch als Übergeschwindigkeits-Fangvorrichtung bezeichnet. In der Regel sind diese an dem Personenkorb montiert und messen eine Relativgeschwindigkeit zwischen dem Sicherheitsseil, welches im Wesentlichen parallel neben dem Tragseil angeordnet ist. Überschreitet nun diese Relativgeschwindigkeit einen vorbestimmten Maximalwert, fängt die Fangvorrichtung den Personenkorb ab, indem beispielsweise Klemmbacken auslösen und kraft- oder reibschlüssig an dem Sicherheitsseil angreifen. Hierdurch ist die Sicherheit des Lifts wesentlich verbessert. Vorzugsweise ist das Sicherheitsseil über eine an dem bauwerkseitigen Halteabschnitt angeordnete Umlenkrolle geführt und mit einem ersten Ende an dem lastseitigen Halteabschnitt befestigt und wirkt mit einem zweiten Ende mit der Fangvorrichtung zusammen. Indem das Sicherheitsseil um eine Umlenkrolle geführt ist, durchläuft es die Fangvorrichtung mit doppelter Geschwindigkeit und halber Last. Daher ist es möglich, eine kleinere Fangvorrichtung, die nur für kleinere Lasten ausgelegt ist, zu verwenden. Dadurch sind die Kosten reduziert. Dabei ist bevorzugt die das Klemmen auslösende Maximalgeschwindigkeit der Fangvorrichtung auf den doppelten Wert eingestellt, um Fehlauslösen zu vermeiden.According to a further aspect of the invention, the object mentioned in a lift of the type mentioned above is achieved with at least one drive device according to one of the preceding preferred embodiments and a support cable, wherein in each case the first rope-passing winch at a first end of the support cable and the second Rope winch at the second end of the support rope attacks. The carrying cable is guided over a pulley. The support cable therefore has a substantially U-shaped configuration. It is particularly advantageous in this case that the support cable is guided over a deflection roller. This results in the advantages already mentioned above with regard to a drive device, in which the two cable traversing winches are adapted to engage a single carrying cable, wherein in particular the carrying cable is guided over a deflection roller, so that the two rope traversing winches engage from two opposite sides on the carrying cable. In this respect, reference is made to the above preferred embodiments of the drive device in its entirety.
According to one embodiment, the deflection roller is attached to a building-side or to a load-side holding section. If the deflection roller is attached to the building-side holding section, the drive device is preferably attached to the load-side holding section. Accordingly, the drive device is preferably attached to the building-side holding portion when the guide roller is attached to the load-side holding portion. Depending on the application, one or the other variant is preferred. In one case, it is a so-called "traveling winch", which "climbs up" on the rope. In the other case, it is a so-called fixed-mounted winch that pulls up an elevator car or a load.
Furthermore, a safety cable is preferably provided, on which a catching device arranged on the load-side holding section engages. Safety gears are devices that are designed to intercept a basket of people to be lifted by means of the lift when a maximum speed is exceeded. They are also referred to as overspeed safety gear. In general, these are mounted on the basket and measure a relative speed between the safety rope, which is arranged substantially parallel to the support cable. If this relative speed now exceeds a predetermined maximum value, the catching device intercepts the passenger basket, for example by triggering jaws and engaging them with force or friction on the safety cable. As a result, the safety of the lift is significantly improved. The safety cable is preferably guided over a deflection roller arranged on the building-side holding section and fastened with a first end to the load-side holding section and acts with a second end with the catching device together. By passing the safety cable around a pulley, it passes through the safety gear at twice the speed and half the load. Therefore, it is possible to use a smaller safety gear designed only for smaller loads. This reduces costs. In this case, the maximum speed of the safety gear that triggers the clamping is preferably set to twice the value in order to avoid false tripping.
Es sollte verstanden werden, dass die Antriebsvorrichtung nach Anspruch 1 und der Lift nach Anspruch 11 ähnliche und/oder identische bevorzugte Ausführungsformen aufweisen, wie sie insbesondere in den abhängigen Ansprüchen definiert sind. Die genannten Vorteile gelten bei solchen Ausführungsformen entsprechend. Für gleiche oder funktionell ähnliche Elemente werden, sofern zweckdienlich, identische Bezugszeichen vergeben.It should be understood that the drive device of
Im Folgenden werden Ausführungsformen der Erfindung unter Bezugnahme auf die beiliegenden Figuren beschrieben. Es zeigen:
Figur 1- eine erste Ansicht eines Lifts mit einer Antriebsvorrichtung in einem ersten Ausführungsbeispiel;
Figur 2- den Lift mit Antriebsvorrichtung aus
Fig. 1 in einer weiteren Ansicht; - Figur 3
- einen Lift mit einer Antriebsvorrichtung gemäß einem zweiten Ausführungsbeispiel ;
Figur 4- den Lift aus
Fig. 3 in einer weiteren Ansicht; - Figur 5
- eine perspektivische Ansicht eines Montageelements; und
Figur 6- eine perspektivische Ansicht einer Lastaufnahme-Kupplung.
- FIG. 1
- a first view of a lift with a drive device in a first embodiment;
- FIG. 2
- the lift with drive device off
Fig. 1 in another view; - FIG. 3
- a lift with a drive device according to a second embodiment;
- FIG. 4
- the lift off
Fig. 3 in another view; - FIG. 5
- a perspective view of a mounting member; and
- FIG. 6
- a perspective view of a load-receiving coupling.
Gemäß
Die Lastaufnahme-Kupplung 16 weist eine Aufnahmeschwinge 20 und einen starren Halter 22 auf, der an einem lastseitigen Halteabschnitt 24 befestigt ist. Die Umlenkrolle 10 ist mittels eines Hakens 26 an einem bauwerkseitigen Halteabschnitt 28 befestigt. Unter bauwerkseitig wird verstanden, dass der Halteabschnitt 28 an einem tragenden Abschnitt eines Bauwerks angeordnet ist, zu dem die Last 18 angehoben werden soll. Als Bauwerk kommt beispielsweise ein herkömmliches Gebäude oder ein Rohbau infrage, ein Turm einer Windenergieanlage, ein Gerüst auf Baustellen oder auch nur ein an einer Gebäudeaußenwand angeordneter Träger.The load-
Neben den (nicht gezeigten) Treibscheiben weisen die Seildurchlaufwinden 4, 6 jeweils einen Elektromotor 30, 32 und ein Gehäuse 34, 36 auf (siehe auch
Die beiden Seildurchlaufwinden 4, 6 sind mittels einer Montageeinrichtung, die zwei Montageelemente 38, 40 aufweist, im Wesentlichen starr miteinander verbunden. Dazu wirken die beiden Montageelemente 38, 40 mit den Gehäusen 34, 36 der Seildurchlaufwinden 4, 6 zusammen (siehe auch
Wie insbesondere aus einem Vergleich der
Der Lift 1 (siehe
Wie leicht aus den Figuren ersichtlich ist, bleibt das Tragseil 8 im Wesentlichen ortsfest, sofern die beiden Seildurchlaufwinden 4, 6 mit derselben Geschwindigkeit betrieben werden. Die erste Seildurchlaufwinde 4 "klettert" an der einen Hälfte des Tragseils 8 hinauf, die zweite Seildurchlaufwinde 6 entsprechend an der anderen Hälfte. Wird eine der beiden Seildurchlaufwinden 4, 6 absichtlich ausgeschaltet oder fällt diese aus, wird die Last 18 nur noch mit halber Geschwindigkeit angehoben. So lässt sich die Geschwindigkeit auch einfach steuern. Für die beiden Seildurchlaufwinden 4, 6 kann eine gemeinsame Steuerung vorgesehen sein oder für jede der Seildurchlaufwinden eine separate Steuerung. Ist eine gemeinsame Steuerung vorgesehen, kann beispielsweise die erste Seildurchlaufwinde 4 als Master betrieben werden und die zweite Seildurchlaufwinde 6 als Slave.As is readily apparent from the figures, the
In den
Im Unterschied zum ersten Ausführungsbeispiel (
Die Fangvorrichtung 42 ist in diesem zweiten Ausführungsbeispiel (
In
An dem Grundkörper 60 sind vier Montagelaschen 64, 65, 66, 67 als Kontaktabschnitte ausgebildet. Die Montagelaschen 64, 65, 66, 67 sind jeweils mit einer Bohrung 68 (nur eine beispielhaft mit Bezugszeichen versehen) ausgestattet. Durch diese Bohrungen 68 hindurch ist eine Schraube in ein entsprechendes Gewindeloch an dem Gehäuse 34, 36 der Seildurchlaufwinde 4, 6 einzuschrauben und so das Montageelement 38 mit den Seildurchlaufwinden 4, 6 verbindbar. Am oberen und unteren Ende ist jeweils ein Griffbereich 70, 72 mit einem entsprechenden Handgriff 71, 73 angeordnet. Im montierten Zustand lässt sich damit die Antriebsvorrichtung 2 einfacher handhaben. Am oberen Ende (bezogen auf
Das (hier nicht gezeigte) zweite Montageelement 40 ist identisch zu dem Montageelement 38 ausgebildet.The (not shown here) second mounting
In
An den beiden Tragarmen 80, 82 sind in
Claims (13)
- Drive device (2) for a lift (1), having
a first (4) and a second (6) endless cable winch which each have a drive disc for cooperating with a carrier cable (8),
wherein both endless cable winches (4, 6) are arranged beside each other and are connected to each other,
the two endless cable winches (4, 6) are configured to engage together on a single carrier cable (8), wherein the endless cable winches (4, 6) are constructed in such a manner that they engage from two opposing sides on the carrier cable (8) which is guided by means of a redirection roller (10) in a cable portion which is located between the drive discs, wherein the drive device can be secured to a load to be lifted and the redirection roller can be secured to a retention portion at the construction site side or the drive device can be arranged on the retention portion at the construction site side and the redirection roller can be arranged on the load,
characterised in that the ends (12, 14) of the carrier cable (8) are suspended freely downwards. - Drive device according to claim 1,
characterised in that the rotation axes of the drive discs are arranged substantially parallel with each other. - Drive device according to claim 1 or claim 2,
characterised in that the two endless cable winches (4, 6) are arranged with the drive discs facing each other. - Drive device according to any one of the preceding claims,
characterised in that the two endless cable winches (4, 6) are substantially structurally identical. - Drive device according to any one of the preceding claims,
characterised in that the two endless cable winches (4, 6) are connected to each other in a reversibly releasable manner and with spacing from each other by means of at least one assembly device. - Drive device according to claim 5,
characterised in that the assembly device has two substantially structurally identical assembly elements (38, 40) which in the assembled state at least partially surround the drive discs and together with the endless cable winches (4, 6) form a channel for the carrier cable (8). - Drive device according to claim 6,
characterised in that the assembly elements (38, 40) each have at least one gripping region (70, 72) for gripping and lifting the drive device (2). - Drive device according to any one of the preceding claims,
characterised by a load receiving coupling (16) by means of which an engaging load (18) can be transferred in a substantially uniform manner to the two endless cable winches (4, 6). - Drive device according to claim 8,
characterised in that the load receiving coupling (16) has a first carrier arm (80) and a second carrier arm (82) for respectively connecting to the first and second endless cable winches (4, 6) and a central carrier frame (84) for connecting to a load (18). - Drive device according to any one of the preceding claims,
characterised by two or more additional first and second endless cable winches which each have a driving disc for cooperation with one or more additional corresponding carrier cables, wherein the two or more additional first and second endless cable winches are connected to each other so as to be arranged adjacent to each other and are configured to engage together on the corresponding additional carrier cable. - Lift (1), having
at least one drive device (2) and
a carrier cable (8), wherein the drive device is constructed in accordance with any one of the preceding claims and the first endless cable winch (4) engages on a first end (12) of the carrier cable (8) and the second endless cable winch (6) engages on the second end (14) of the carrier cable (8), respectively, in such a manner that the endless cable winches (4, 6) engage from two opposing sides on the carrier cable (8) which is guided by means of a redirection roller (10) in a cable portion located between the drive discs, wherein the drive device is secured to a load to be lifted and the redirection roller is secured to a retention portion at the construction site side or the drive device is arranged on the construction-site-side retention portion and the redirection roller is arranged on the load,
characterised in that the ends (12, 14) of the carrier cable (8) are suspended freely downwards. - Lift according to claim 11,
characterised by a safety cable (44) on which a catch device (42) which is arranged on the load-side retention portion (24) engages. - Lift according to claim 12,
characterised in that the safety cable (44) is guided via a redirection roller (50) which is fitted to the construction-site-side retention portion (28) and is secured with a first end (46) to the load-side retention portion (24) and cooperates with a second end (48) with the catch device (42).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012202430A DE102012202430A1 (en) | 2012-02-16 | 2012-02-16 | Lifting device with double winch |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2628700A2 EP2628700A2 (en) | 2013-08-21 |
EP2628700A3 EP2628700A3 (en) | 2015-07-01 |
EP2628700B1 true EP2628700B1 (en) | 2016-07-13 |
Family
ID=47739087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13154743.2A Not-in-force EP2628700B1 (en) | 2012-02-16 | 2013-02-11 | Elevator device with double-acting winch |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2628700B1 (en) |
DE (1) | DE102012202430A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1285473A (en) * | 1969-07-21 | 1972-08-16 | Thomas Ltd Martin | Improvements in or relating to rope climbing devices |
US5090666A (en) * | 1988-10-13 | 1992-02-25 | May Marvin M | Hoist apparatus |
DE10315267A1 (en) * | 2003-04-03 | 2004-10-14 | Wittur Ag | Passenger and goods transportation elevator e.g. for hospitals, supermarkets and airports, uses at least two drives each equipped with drive pulley |
CN101107191B (en) * | 2005-03-01 | 2010-06-23 | 三菱电机株式会社 | Elevator apparatus |
US7631730B2 (en) * | 2005-11-04 | 2009-12-15 | Sky Climber, Llc | Powered controlled acceleration suspension work platform hoist system |
-
2012
- 2012-02-16 DE DE102012202430A patent/DE102012202430A1/en not_active Withdrawn
-
2013
- 2013-02-11 EP EP13154743.2A patent/EP2628700B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2628700A2 (en) | 2013-08-21 |
EP2628700A3 (en) | 2015-07-01 |
DE102012202430A1 (en) | 2013-08-22 |
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