EP2824061B1 - Dispositif de levage et élévateur doté d'un tel dispositif de levage - Google Patents

Dispositif de levage et élévateur doté d'un tel dispositif de levage Download PDF

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Publication number
EP2824061B1
EP2824061B1 EP14176588.3A EP14176588A EP2824061B1 EP 2824061 B1 EP2824061 B1 EP 2824061B1 EP 14176588 A EP14176588 A EP 14176588A EP 2824061 B1 EP2824061 B1 EP 2824061B1
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EP
European Patent Office
Prior art keywords
lifting
lifting device
cavity
movement
flowable medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14176588.3A
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German (de)
English (en)
Other versions
EP2824061A1 (fr
Inventor
Johannes Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herrmann AG
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Herrmann AG
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Filing date
Publication date
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Publication of EP2824061A1 publication Critical patent/EP2824061A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators

Definitions

  • the present invention relates to an actuatable by a flowable medium lifting device and in particular to a hydraulically or pneumatically operated lifting device.
  • the invention is described in particular with reference to a lift for lifting motor vehicles, it is to be noted, however, that the device according to the invention can also be used for other lifting devices or lifting devices for objects other than motor vehicles.
  • a hydraulic lifting device for vehicles which has two synchronously operating lifting units.
  • Each of the two lifting units each comprises a double-acting and a single-acting lifting cylinder, the lifting rods are arranged in parallel and are extended synchronously, the single-acting cylinder of a lifting unit is in each case with the double-acting cylinder the other lifting unit, via a connecting line in such a way, so that a pressure compensator is formed.
  • the present invention is therefore based on the object of reducing the installation space of such lifting devices, in particular in a vertical direction. This object is achieved by a lifting device and a lift according to the independent claims. Advantageous embodiments and further developments are the subject of the dependent claims.
  • An inventive actuatable by a flowable medium lifting device has a main carrier which forms a first cavity and a first lifting element, which is at least partially disposed within this first cavity and which is movable relative to this cavity in two mutually opposite directions of movement. Furthermore, the lifting device has a (supply) opening in order to supply the flowable medium to the first cavity (or to discharge it from the first cavity, in particular for lowering an object), the first lifting element being fed into the first cavity by supplying the flowable medium is moved in the first direction of movement, wherein the main carrier has a second cavity, which is arranged fixedly against the first cavity and a second lifting element, which is at least partially disposed within the second cavity and which is movable relative to this second cavity in the two mutually opposite directions of movement is. In addition, a second opening and in particular a feed or discharge opening is provided in order to supply the flowable medium to the second cavity or to remove it from it.
  • the second lifting element by feeding the flowable medium into the second cavity, the second lifting element is moved in the second direction of movement (which is opposite to the first direction of movement).
  • the boundary walls of the cavities are immovable with respect to each other.
  • the flowable medium is, in particular, a hydraulic medium or a pneumatic agent, which is particularly preferably a hydraulic medium such as, for example, oil or water or the like.
  • the main carrier has at least one wall, which separates the two cavities from each other. In this case, this wall preferably extends in a direction of movement of the lifting elements.
  • At least one vent valve is provided to vent at least one cavity and / or at least one feed channel for supplying the flowable medium.
  • the first cavity and the second cavity are at least indirectly in fluid communication with each other by means of at least one conduit carrying the fluid medium.
  • the flow connection can also take place via a second lifting device and, for example, a first cavity of the first lifting device is in flow communication with a second cavity of the second lifting device.
  • a connecting piece and / or a connecting line which connects the two cavities of a lifting device hydraulically. It would also be conceivable that the connection is realized by an opening or a gap in or on the edge of a wall which separates the cavities from each other.
  • the lifting elements move within the cavity / cavities of the main carrier.
  • the main carrier is received by the lifting elements and therefore the lifting elements also form the corresponding cavities for receiving the main carrier.
  • the first and the second lifting element would each form cavities, and these could be acted upon by the flowable medium, wherein a movement of the lifting elements relative to the carrier is achieved by acting on the respective cavities.
  • the lifting device is a hydraulically operated lifting device and, as mentioned above, the flowable medium is preferably a liquid, in particular oil or water.
  • At least one lifting element is arranged stationary. It is possible that, for example, a lifting element is attached to a floor, in turn, the main carrier is arranged on this lifting element and in turn the second carrier is arranged on the main carrier. This is when lifting the object or an extension of the lifting device both the main carrier moves and the second lifting element (relative to the main carrier). It is possible that the absolute speed of the movement of the second lifting element is twice as high as the speed of movement of the main carrier. However, this is not absolutely necessary, since this can also be configured differently depending on a cross section of the respective lifting elements.
  • At least one lifting element has a channel for conducting a flowable medium and in particular a hydraulic medium.
  • This channel may preferably be formed in a base body of the lifting element. Preferably, this channel runs in the above-mentioned direction of movement.
  • the device has at least one venting valve for venting this channel.
  • this vent valve may for example be arranged between one end of this channel and a region of the lifting device.
  • the first cavity has a first chamber and a second chamber, which are separated from each other by a piston element of the first lifting element.
  • the volume of one chamber is changed to the same extent, for example reduced, as the volume of the other chamber (in this case increased).
  • the second chamber is in flow communication with the above-mentioned second cavity.
  • the second chamber also has an opening through which the flowable medium can be supplied and / or removed.
  • the present invention is further directed to a device for lifting objects and in particular motor vehicles.
  • This device has a support which has at least one support element to be arranged at least indirectly on the element to be lifted and at least one lifting device of the type described above.
  • the support element is at least indirectly coupled to a lifting element of the lifting device. This means that with a movement of the lifting element and the said support element is moved.
  • the device also has a housing, within which the lifting device is arranged.
  • the device is an overfloor lifting platform, that is to say a lifting platform whose mechanical elements are arranged at least predominantly above a floor level.
  • the device has a guide device for guiding a movement of the main carrier.
  • the main carrier can be guided within a housing and thus in particular a movement in the vertical direction of this main carrier are performed.
  • the device has a second lifting device and it is preferably provided a connecting line to direct the flowable medium from the first lifting device to the second lifting device.
  • a lifting device may be provided, which is in each case equipped with support elements.
  • these two lifting devices are preferably coupled to one another via the flow agent and particularly preferably hydraulically.
  • a central supply which supplies the flowable medium to the two lifting devices, but it leads a conduit for the flowable medium from one lifting device to the other lifting device.
  • two connecting lines are provided, which connect the two lifting devices with each other. It is possible that in the individual lifting devices, the movement of the lifting elements is designed as a master-slave drive, so that the movement of a lifting element relative to the main carrier also generates the movement of the other lifting element (in particular another lifting device).
  • the second lifting device is a lifting device of the type described above and preferably a first lifting element of the first lifting device is connected via a first connecting line for the flowable medium with a second lifting element of the second lifting device.
  • a symmetrical structure results between the two lifting devices. It is possible that two central supply lines are provided to the device in each case the hydraulic medium supply, wherein preferably a feed of the first lifting device, the medium feeds and the second feed line of the second lifting device and moreover preferably the two lifting devices are connected to each other via connecting lines.
  • Fig. 1 shows a schematic representation of a lifting device according to the invention 1.
  • This lifting device 1 in this case has a main carrier 2, which may be configured as a housing and on or in turn a first lifting element 42 and a second lifting element 62 are arranged.
  • these two lifting elements 42, 62 relative to this main carrier 2 are movable in the two mutually opposite directions R1 and R2.
  • Fig. 1 the situation is shown in which the lifting device is extended, that is, the first lifting element relative to the main carrier 2 moves down and the second lifting element 62 relative to the main carrier in the direction R2, that is, upwards moves.
  • the reference numeral 44 denotes a feed opening or generally a feed device, which is shown here at the lower end of the lifting element 42.
  • the reference numeral 48 denotes a running inside the lifting element 42 channel, via which a hydraulic means, here for lifting upwards, can be guided and can enter into a cavity 4 or the cavity part 4a.
  • this connection line can also be formed within the main carrier and be given for example in the simplest case through an opening in the wall 72 in the interior of the main carrier 2.
  • Fig. 2 shows a representation of a lift, here an overground lift 60, in which the invention is also used.
  • the hydraulic fluid is supplied to both lifting devices 1 and 10. Through the channels 48, the hydraulic fluid passes into the cavities 4a.
  • the two supply elements in both lifting devices 1, 10 redundantly available.
  • the feed elements preferably each have rod-like bodies, which preferably extend in the stroke direction.
  • the first feeding element 42 is also the first lifting element, since this first feeding element has both the function of supplying the hydraulic medium and the function of serving as a stationary lifting element, which is movable relative to the main carrier 2.
  • the hydraulic medium is not performed in the adjacent space, but via the connecting lines 32 and 34 respectively in the space 6 of the other lifting device 10 and 1.
  • another channel 43 also within the feed, whereby the Line expense is simplified.
  • further supply elements 42 are supplied with the hydraulic medium by the connecting lines 32, 34.
  • the channel 43 establishes the connection with the other lifting device.
  • the first lifting element 42 has at least two channels, which are preferably parallel to each other and in which the hydraulic medium flows in different and in particular in opposite directions.
  • the hydraulic medium enters the spaces 6a and 6b (more precisely via an opening in the wall 72 in the interior of the main carrier) and thus causes the two lifting elements 62 to be pushed upwards.
  • a support 86 is arranged on the supply elements 62 and, in turn, a support arm 84 is pivotably mounted on these, on which a support element 82 is provided, which serves to lift the motor vehicle.
  • the reference numeral 48 designates another passage which is provided in the feeding member 42 and which in turn serves for feeding the hydraulic medium into the cavities 6a (the other lifting means).
  • Fig. 3 shows a further embodiment of a lift according to the invention.
  • the hydraulic medium reference P
  • the hydraulic medium is first supplied via a feed line to the respective feed element 42 and in turn passes into the cavity 4a.
  • the hydraulic medium is in turn forced out of the spaces 6a and 6b (which are connected to one another) through the other channel 43 of this feed element 42 and passes via the two connecting lines 32 and 34 alternately to the respective other feed element 42 (FIG. shown lying inside) and there in the spaces 6c and 6d (which are connected to each other via the line connection 48) and causes in this way an extension of the second supply element 62 shown here on the left.
  • the supply elements 62 are also redundant.
  • Fig. 4a - 4d show a development of a lifting device according to the invention.
  • Fig. 4a shows only an arrangement of a feed element 42 and a main carrier 2.
  • the main carrier 2 is moved up here.
  • Fig. 4b shows a redundant arrangement of two main carrier 6, which, however, are advantageously assembled here.
  • the carrier 2 is also raised by the supply of the hydraulic medium (P).
  • Fig. 4c shows a representation similar to the Fig. 4a , in which case the two lifting elements 42 and 62 are each extended out of the carrier 2 (or the carrier 2 is extended relative to the lifting element 42).
  • both the feed elements 42 and the lifting elements 62 are duplicated. In this way, a redundancy of the system is achieved.
  • a flow connection between the space 4b and the space 6a is made here by a connecting line 56. Again, however, the connection could be realized again on internal openings.
  • Fig. 5 shows a further embodiment of a lifting platform according to the invention.
  • the two hydraulic devices are supplied to the two lifting devices 1, 10 via the feed elements 42 and the lifting elements. From these feed elements 42, the hydraulic medium passes into the first partial spaces 4a and causes the two main carriers 2 to be extended upward.
  • the hydraulic medium here also passes directly via connecting lines 47 into the two spaces 6a and thus causes the second lifting elements 62b to be extended out of the main carrier 2.
  • the hydraulic medium is supplied via a further connecting line 49 in each case the spaces 4b and each further supplied via the located in the respective first lifting elements line 43 and the connecting lines 32, 34 of the other lifting device.
  • the hydraulic medium passes via the two internally shown feed elements 42 into the respective inner spaces 4a and thus also supports the extension of the main carrier.
  • the hydraulic medium in each case passes into the other (here again internally shown subspaces 6a whereby the lifting elements 62a are extended.
  • the lifting devices according to the invention are used, but also by at least one and preferably at least two connecting lines between the lifting devices realized a synchronization of the two lifting devices.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Types And Forms Of Lifts (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (10)

  1. Système de levage (1) pouvant être actionné par un milieu coulant, comprenant un support principal (2) qui constitue une première cavité (4), un premier élément de levage (42), lequel étant agencé au moins en partie à l'intérieur de cette première cavité (4) et lequel étant mobile par rapport à cette cavité (4) dans deux sens de mouvement (R1, R2) opposés l'un à l'autre, une première ouverture d'amenée (44), afin d'amener le milieu coulant à la première cavité (4), dans lequel une amenée du milieu coulant dans la première cavité (4) permet de déplacer le premier élément de levage (42) dans le premier sens de mouvement (R1), dans lequel le support principal comprend une deuxième cavité (6) montée fixe en mouvement par rapport à la première cavité (4) ainsi qu'un deuxième élément de levage (62) agencé au moins en partie à l'intérieur de cette deuxième cavité (6) et mobile par rapport à cette cavité dans les deux sens de mouvement (R1, R2) opposés l'un à l'autre, une deuxième ouverture d'amenée (64), afin d'amener le milieu coulant à la deuxième cavité (6), caractérisé en ce que
    une amenée du milieu coulant dans la première cavité (4) permet de déplacer le deuxième élément de levage (62) dans le deuxième sens de mouvement (R2).
  2. Système de levage (1) selon la revendication 1,
    caractérisé en ce que
    la première cavité (4) et la deuxième cavité (6) sont au moins indirectement en liaison fluidique au moyen d'au moins une conduite guidant le milieu coulant.
  3. Système de levage (1) selon la revendication 1,
    caractérisé en ce que
    le système de levage (1) est un système de levage à fonctionnement hydraulique.
  4. Système de levage selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    au moins un élément de levage est monté fixe.
  5. Système de levage selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    au moins un élément de levage (42) comprend un canal (48) destiné à guider le milieu hydraulique.
  6. Système de levage selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    la première cavité (4) comprend une première chambre (4a) ainsi qu'une deuxième chambre (4b), lesquelles sont séparées l'une de l'autre par un élément piston (52) du premier élément de levage (42).
  7. Dispositif (60) servant à lever des objets et en particulier des véhicules automobiles, comprenant un support qui présente au moins un élément de support à agencer sur l'élément à lever, et au moins un système de levage (1) selon au moins l'une des revendications précédentes, dans lequel l'élément de support est raccordé à au moins un élément de levage du système de levage.
  8. Dispositif (60) selon la revendication 7,
    caractérisé en ce que
    le dispositif (60) comprend un système de guidage destiné à guider un mouvement du support principal.
  9. Dispositif (60) selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif (60) comprend un deuxième système de levage (10) et au moins une conduite de liaison (32, 34) est prévue, afin de guider le milieu coulant du premier système de levage (1) au deuxième système de levage.
  10. Dispositif (60) selon la revendication 9,
    caractérisé en ce que
    le deuxième système de levage est également un système de levage selon au moins l'une des revendications précédentes et de préférence un premier élément de levage (42) du premier système de levage (1) est relié à un deuxième élément de levage (62) du deuxième système de levage (10) par une conduite de liaison pour le milieu coulant.
EP14176588.3A 2013-07-10 2014-07-10 Dispositif de levage et élévateur doté d'un tel dispositif de levage Active EP2824061B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013107305.0A DE102013107305B4 (de) 2013-07-10 2013-07-10 Hubeinrichtung und Hebebühne mit einer solchen Hubeinrichtung

Publications (2)

Publication Number Publication Date
EP2824061A1 EP2824061A1 (fr) 2015-01-14
EP2824061B1 true EP2824061B1 (fr) 2018-01-31

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EP14176588.3A Active EP2824061B1 (fr) 2013-07-10 2014-07-10 Dispositif de levage et élévateur doté d'un tel dispositif de levage

Country Status (4)

Country Link
US (1) US9527703B2 (fr)
EP (1) EP2824061B1 (fr)
DE (1) DE102013107305B4 (fr)
DK (1) DK2824061T3 (fr)

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ES2676352T3 (es) * 2014-08-04 2018-07-18 Essilor International Gafas que comprenden un par de lentes progresivas
WO2016205692A1 (fr) * 2015-06-19 2016-12-22 Actuant Corporation Système de vérin compact
FR3054536B1 (fr) * 2016-07-26 2020-05-08 Db Industries Dispositif telescopique de verins hydrauliques en grappe pour montage terrestre ou immerge
CN108331797B (zh) * 2018-03-28 2023-12-08 江苏徐工工程机械研究院有限公司 一种抛沙灭火车进料装置用油缸
US11731865B2 (en) 2018-10-03 2023-08-22 Steve Green Modular configurable inground automotive lift system
GB2579063A (en) * 2018-11-16 2020-06-10 Edwards Ltd Lifting apparatus
CN114735618A (zh) * 2022-04-08 2022-07-12 湖州哥伦布物流科技有限公司 错位油缸及包含该错位油缸的四向车

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Also Published As

Publication number Publication date
EP2824061A1 (fr) 2015-01-14
DK2824061T3 (da) 2018-04-23
DE102013107305B4 (de) 2022-11-24
US9527703B2 (en) 2016-12-27
DE102013107305A1 (de) 2015-01-15
US20150014616A1 (en) 2015-01-15

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