EP3428115B1 - Dispositif de levage et procédé de déplacement d'un chariot élévateur - Google Patents

Dispositif de levage et procédé de déplacement d'un chariot élévateur Download PDF

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Publication number
EP3428115B1
EP3428115B1 EP18179645.9A EP18179645A EP3428115B1 EP 3428115 B1 EP3428115 B1 EP 3428115B1 EP 18179645 A EP18179645 A EP 18179645A EP 3428115 B1 EP3428115 B1 EP 3428115B1
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EP
European Patent Office
Prior art keywords
lifting
lifting device
drive
carriage
lifting carriage
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
EP18179645.9A
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German (de)
English (en)
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EP3428115A1 (fr
Inventor
Christian Janda
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.)
Pentanova Cs GmbH
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Pentanova Cs GmbH
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Filing date
Publication date
Application filed by Pentanova Cs GmbH filed Critical Pentanova Cs GmbH
Publication of EP3428115A1 publication Critical patent/EP3428115A1/fr
Application granted granted Critical
Publication of EP3428115B1 publication Critical patent/EP3428115B1/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
    • 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

Definitions

  • the invention relates to a lifting device with a lifting carriage, with at least one support means and with a pulley system for vertically moving the lifting carriage, the support means having two ends and being fixed to a winding device in the area of both ends.
  • the invention also relates to a method for moving a lifting carriage.
  • the EP 3 064 466 A1 discloses a lifting device with a frame-like lifting mast and a lifting unit guided in a height-adjustable manner therein, wherein at least one pulley-based drive with a rope as traction means is provided for the execution of the lifting movement of the lifting unit, wherein one guide rail is provided for each strut of the frame, and one guide rail for each guide rail own pulley-based drive is provided.
  • the EP 2 855 338 B1 describes a lifting device with a number of guide columns on which a lifting carriage is arranged so that it can be moved in a guided manner, and pulley blocks for lifting the lifting carriage engage on the lifting carriage, with each pulley block consisting of a traction device and a number of deflection rollers per traction device, with the lifting device having two pulley groups with two pulleys are provided, and each pulley group is driven by a common drive unit.
  • a lifting device of the type mentioned is from GB 2 226 006 A known.
  • the object of the present invention is to provide a lifting device whose functional reliability is increased compared to the prior art and in which the disadvantages known from the prior art are avoided as far as possible.
  • a lifting device of the type mentioned at the outset a first drive unit being provided for the first winding device in the area of the first end of the suspension element and a second drive unit being provided for the second winding device in the area of the second end of the suspension element.
  • two drive units are connected to the suspension means of the pulley system, which increases operational reliability. Furthermore, downtimes can be significantly reduced in this way.
  • first and the second drive unit are designed to rotate in the same direction. In this way, for example, advantages can be achieved for the electrical connection of the drive units.
  • first and the second drive unit can be designed to rotate in opposite directions.
  • Such an embodiment can be structurally advantageous, for example with regard to the number of deflection rollers to be provided.
  • the first and the second drive unit can be constructed in the same way. In this way, for example, advantages of a constructive nature and/or with regard to the procurement of parts can be achieved.
  • the lifting carriage is arranged out in a portal device. In this way, a particularly stable guide and support structure can be provided for the lifting carriage.
  • the lifting device for example in an industrial plant or in a storage facility, it can be advantageous if a load-receiving device is accommodated in the lifting carriage.
  • the load handling device is designed as a roller conveyor.
  • the load-carrying device can preferably be designed as a floor track, suspension track or platform for vehicles and/or vehicle bodies.
  • the lifting device can advantageously have a control device for controlling the drive units.
  • a control device for controlling the drive units for example, a software-based control of the drive units can be implemented.
  • the drive units can preferably each be configured such that they can be switched on or off by means of a control signal. In this way, a particularly short-term and functionally appropriate switchover of the drive for the suspension element is made possible.
  • the object on which the invention is based is also achieved by a method for moving a lifting carriage, the lifting carriage being moved vertically by means of a lifting device which is designed according to the invention or one of its configurations.
  • Significant advantages of the method are analogous to the advantages of the lifting device.
  • one of the two winding devices can be driven for the vertical movement of the lifting carriage.
  • the power of the drive unit which is assigned to the other winding device, can be used as a reserve and/or in the sense of a redundant system are kept ready.
  • both winding devices can be driven for the vertical movement of the lifting carriage. In this way, the power of both drive units can be used at the same time.
  • the lifting carriage can preferably be moved by means of the drive device of the other winding device. In this way, downtimes can be significantly reduced compared to the prior art, since in the event of a fault it is possible to switch directly from one drive unit to the other. In addition, functional losses in the event of a fault can be avoided, at least as far as possible.
  • figure 1 1 shows an example of a section of a conveyor system 2 with a lifting device 4.
  • a conveyor system 2 can be provided, for example, in an industrial plant, for example a production plant in the automotive industry, or in a storage facility.
  • the lifting device 4 is designed as a vertical converter with a lifting carriage 8 .
  • a charge for example one or more components or a component group, can be transported vertically with the aid of the lifting device 4 .
  • the lifting carriage 8 is equipped with a load-carrying device 10 which, as indicated in the example shown, can be designed as a roller conveyor for, for example, skids or pallets.
  • the load handling device 10 can be designed, for example, in the form of a floor conveyor, for example an electric floor conveyor, or in the form of a monorail, for example an electric monorail.
  • the load handling device 10 can be designed, for example, as a platform for a vehicle, a vehicle body and/or a component or a component group.
  • the lifting carriage 8 has a plurality of side parts 30 which are attached to a carriage carrier 40 .
  • the lifting carriage 8 can be moved vertically and is guided in a support frame 54 .
  • the lifting carriage 8 is arranged in a portal device 6 .
  • Two vertical gantry posts 36, 38 of the gantry device 6 form a support frame 54 for the lifting carriage 8 with the gantry traverse 34.
  • the lifting carriage 8 can preferably be arranged in the support frame 54 in a roller-guided manner.
  • one or more individual stands can also be provided, for example, to form the support frame 54.
  • the lifting carriage 8 is suspended with the aid of at least one suspension element 16 .
  • the suspension means 16 can be wound and can be designed, for example, in the form of a rope or, as indicated in the drawing, in the form of a belt.
  • ropes made of steel or plastic or belts made of fabric or rubber can be used as support means 16 .
  • the use of suspension elements 16 made of a composite material is also possible.
  • the support means 16 has two end regions, each of which is fixed to a winding device 18, 20.
  • attachment points can be provided which are attached to the respective winding device 18, 20.
  • the suspension element 16 can be wound up one on top of the other on a winding device 18, 20.
  • the suspension element 16 can be wound up on a winding device 18, 20, for example in the case of a cable, lying next to one another and possibly one on top of the other.
  • a drive unit 22 , 24 is provided for each winding device 18 , 20 in order to drive the two winding devices 18 , 20 shown, which are each associated with one end of the suspension element 16 .
  • the first winding device 18 is connected to a first drive unit 22 and the second winding device 20 is connected to a second drive unit 24 .
  • the support means 16 can be connected to the two drive units 22, 24 in a non-positive manner via the two winding devices 18, 20, for example.
  • the two drive units 22, 24 can preferably be of identical design.
  • Drive units 22, 24 shown for the winding devices 18, 20 are designed as motors, preferably as electric motors.
  • the drive units 22, 24 can be designed as electric geared motors with a controller.
  • the support means 16 for the lifting carriage 8 is guided over a plurality of deflection rollers 42, 44, 46, 48, with a pulley system 50 being formed.
  • a pulley system 50 is designed with a double pulley.
  • the pulley system 50 can also be designed with a pulley with a factor other than two.
  • two deflection rollers 42, 48 are arranged in a stationary manner on the portal device 6, while two further deflection rollers 44, 46 are arranged on the lifting carriage 8 and move with it.
  • the deflection rollers 44, 46 arranged on the lifting carriage 8 are fastened to the carriage carrier 40 of the lifting carriage 8 in the example shown.
  • the Figures 2 to 4 show an example and in a schematic representation of a section of a conveyor system 2 with a lifting device 4.
  • the lifting device 4 is arranged between two load receiving levels 12, 14.
  • the load-receiving planes 12, 14 shown are arranged at different heights, with the first load-receiving plane 12 being arranged at a lower height than the second load-receiving plane 14 in the examples shown.
  • loads can be moved vertically between the at least two load-carrying levels 12, 14.
  • the at least two load receiving levels 12, 14 define load change positions in which a load can be transferred between the load receiving device 10 of the lifting device 4 and the corresponding load receiving level 12, 14.
  • a position query can be carried out by means of a control device that is not shown in detail.
  • the lifting device 4 can be locked in a load changing position for load transfer take place. Such a locking can be done mechanically, for example.
  • the lifting device 4 can only be used as a type of lifting platform.
  • the load for example a workpiece
  • the load is brought from one of the load-receiving planes 12, 14 to the height of the other load-receiving plane 14 or 12, respectively.
  • An activity on or processing of the workpiece can then take place there.
  • the workpiece is then brought back up to the height of the load receiving level 12 or 14 and leaves the lifting device 4.
  • the load handling device 10 is accommodated in a lifting carriage 8 of the lifting device 4 .
  • the lifting carriage 4 is arranged in a support frame 54 , a plurality of guide rollers 56 for guiding the lifting carriage 4 being provided in the support frame 54 in the example shown.
  • the lifting carriage 8 is carried by a support means 16 capable of being wound, which has two ends and which is fastened to a rotatable winding device 18, 20 at each end.
  • a support means 16 capable of being wound, which has two ends and which is fastened to a rotatable winding device 18, 20 at each end.
  • To guide the suspension element 16 several deflection rollers 42, 44, 46, 48 are provided in such a way that a block and tackle system 50 is formed.
  • Each of the two ends 58, 60 of the support means 16 is assigned a drive device 26 or 28, respectively.
  • a drive device 26, 28 has a drive unit 22 or 24 and a winding device 18 or 20, respectively.
  • the lifting device 4 can be operated in different ways. For example, according to a first operating mode of the lifting device 4, only one of the drive units 22, 24 of the support means 16 is used to move the lifting carriage 8 in normal operation. If a fault occurs in this drive unit 22, 24, the lifting carriage 8 is moved by means of the other drive unit 24 or 22. For example, in the event of a defect in one of the drive units 22, 24 downtimes can occur at least are largely avoided. In the event of a fault, the other drive unit 24, 22 can take over directly and with the same system performance, preferably regardless of the position at which the lifting carriage 8 is located in the event of a fault.
  • the support means 16 can be fixed in place using suitable clamping elements in the area of the faulty drive unit 22, 24, for example in order to service or replace the faulty drive unit 22, 24.
  • both drive units 22, 24 can be used to move the lifting carriage 8.
  • a higher system performance can be achieved in normal operation of the second operating mode than in normal operation of the first operating mode. If a fault occurs in one of the two drive units 22, 24, the lifting carriage 8 is then only moved by means of the other drive unit 24, 22 that is not faulty. Accordingly, according to the second operating mode, the system performance is reduced in the event of a fault compared to the system performance in normal operation. According to the second operating mode, the system performance in the event of a fault can correspond, for example, to half the system performance in normal operation.
  • figure 2 shows the lifting carriage 8 of the lifting device 4 in a lowered position, in which the load-receiving device 10 of the lifting device 4 is in a load-changing position associated with the load-receiving plane 12 .
  • FIGs 3 and 4 show the lifting carriage 8 of the lifting device 4 in a comparison to that in figure 2 Example shown raised position, in which the load handling device 10 of the lifting device 4 is in a load changing position associated with the load receiving level 14.
  • figure 3 shows a state of the lifting device 4, which occurs after the lifting carriage 8 by means of the second drive device 28 from the in figure 2 position shown in the in figure 3 position shown has been moved. Accordingly, the carrying means 16 wound up on the second winding device 20, which is associated with the second drive device 28.
  • figure 4 shows a state of the lifting device 4, which occurs after the lifting carriage 8 by means of the first drive device 26 from the in figure 2 position shown in the in figure 4 position shown has been moved. Accordingly, the suspension element 16 is wound onto the first winding device 18 which is assigned to the first drive device 26 .
  • FIGS. 5 to 8 12 show exemplary embodiments of the lifting device 4 in a sectional view and, for the sake of a better overview, in a highly schematic representation.
  • the Figures 5 to 8 show the lifting device 4 with a lifting carriage 8 and with a support frame 54, with the aid of which the lifting carriage 8 is arranged out.
  • the lifting device 4 is equipped with a winding support means 16, which can preferably be designed as a cable or belt.
  • a drive device 26 or 28 for the suspension element 16 is provided at both ends 58 , 60 of the suspension element 16 .
  • the support means 16 forms, with a plurality of deflection rollers 42, 44, 46, 48, a pulley system 50 for the vertical transfer of the lifting carriage 8.
  • figure 5 shows a lifting device 4 in which the drive devices 26, 28 are arranged to rotate in opposite directions. If one or both of the drive devices 26, 28 shown here rotate in the direction of the arrows 62 or 64, the carrying means 16 is wound up and the lifting carriage 8 is thus raised.
  • figure 6 shows a lifting device 4 in which the drive devices 26, 28 are arranged to rotate in the same direction. If one or both drive devices 26, 28 rotate in the direction of the arrows 66 or 68, the carrying means 16 is wound up and the lifting carriage 8 is thus raised. According to the figure 6 example shown, an additional deflection roller 70 is provided, over which the suspension element 16 is guided.
  • figure 7 shows an example of a lifting device 4, in which the axes of the winding devices 18, 20 are aligned perpendicular to the axes of the deflection rollers 42, 44, 46, 48.
  • the axis of at least one deflection roller 42, 44, 46, 48 can be rotated at an angle other than 0°, for example at an angle of 90°, to the axis of at least one of the winding devices 18, 20.
  • Such a construction can be advantageous, for example, in the case of a suspension element 16 designed in the form of a cable.
  • the axis of a drive device 26, 28 preferably coincide with the axis of the corresponding winding device 18, 20. Such a match is for example in the Figures 2 to 4 recognizable.
  • the axes of the drive devices 26, 28 are aligned parallel to the axes of the deflection rollers 42, 44, 46, 48.
  • Such a construction can be of particular advantage, for example, in the case of a carrying means 16 designed in the form of a belt.
  • the drive devices 26, 28 are arranged on opposite sides of the lifting carriage 8 or on opposite sides of the support frame 54.
  • figure 8 shows an example of a lifting device 4, in which the drive devices 26, 28 are arranged on the same side of the lifting carriage 8 and on the same side of the support frame 54.
  • an additional deflection roller 72 is provided, which is shown in FIG Example of the first drive device 26 is arranged opposite.
  • Such a configuration of the lifting device 4 with drive devices 26, 28 arranged on the same side can be advantageous, for example with regard to electrical connections, for reasons of space and/or with regard to efficient maintenance.
  • a disadvantage here may be, for example, compared to in the Figures 5 to 7 shown lifting devices 4 greater length of the support means 16 and / or the provision of the additional deflection roller 72.
  • the lifting device 4 with one in the Figures 1 to 8 be equipped control device not shown in detail.
  • the first and/or the second drive device 26, 28 can be switched on or off by means of the control device.
  • a drive device 26, 28 can be switched on, for example, in order to replace the respective other drive device 28, 26 in the event of a defect.
  • a drive device 26 , 28 can also be switched on in order to increase the system performance of the vertical converter designed as a lifting device 4 .
  • the drive units 22, 24 of the drive device 26, 28 can be designed as electric motors, for example.
  • a drive unit 22, 24 is preferably switched on and off by means of software that is executed by the control device. Switching between the drive units 22, 24, for example if one of the drive units 22, 24 fails, is preferably carried out using suitable software.
  • the position queries of the lifting carriage 8, the distance and speed detections as well as controls and monitoring of the support means 16 are carried out according to the known prior art.
  • the present invention relates to a lifting device 4 with a lifting carriage 8, with at least one carrying element 16, and with a pulley system 50 for the vertical movement of the lifting carriage 8, with the carrying element 16 having two Has ends 58, 60 and is fixed in the region of both ends 58, 60 in each case to a winding device 18, 20.
  • the winding devices 18, 20 are each connected to a drive unit 22, 24.
  • the connection of the suspension element 16 to the two drive units 22, 24 established via the winding devices 18, 20 provides a redundant system in which the drive units 22, 24 can be switched on and off quickly and without mechanical modifications.
  • the invention also relates to a method for operating such a lifting device 4.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Claims (14)

  1. Dispositif de levage comportant un chariot élévateur, comprenant au moins un moyen de support et comprenant un système de poulie pour le déplacement vertical du chariot élévateur,
    dans lequel
    le moyen de support (16) comporte deux extrémités (58, 60) et est fixé à un dispositif d'enroulement (18, 20) chacun dans la zone des deux extrémités (58, 60),
    caractérisé en ce que
    une première unité d'entraînement (22) est prévue pour le premier dispositif d'enroulement (18) dans la zone de la première extrémité (58) du moyen de support (16), et qu'une seconde unité d'entraînement (24) est prévue pour la seconde dispositif d'enroulement (20) dans la zone de la seconde extrémité (60) du moyen de support (16).
  2. Dispositif de levage selon la revendication 1, caractérisé en ce que la première et la seconde unité d'entraînement (22, 24) sont conçues pour tourner dans le même sens.
  3. Dispositif de levage selon la revendication 1, caractérisé en ce que la première et la seconde unité d'entraînement (22, 24) sont conçues pour tourner en sens inverse.
  4. Dispositif de levage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la première et la seconde unité d'entraînement (22, 24) sont réalisées de construction identique.
  5. Dispositif de levage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le chariot élévateur (8) est agencé de manière à être guidé dans un dispositif à portique (6).
  6. Dispositif de levage selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un dispositif de suspension de charge (10) est reçu dans le chariot élévateur (8).
  7. Dispositif de levage selon la revendication 6, caractérisé en ce que le dispositif de suspension de charge (10) est conçu en tant que convoyeur à rouleaux (52).
  8. Dispositif de levage selon la revendication 6, caractérisé en ce que le dispositif de suspension de charge (10) est conçu en tant que voie de plancher, voie suspendue ou en tant que plate-forme pour des véhicules et / ou des carrosseries de véhicules.
  9. Dispositif de levage selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le dispositif de levage (4) comporte un dispositif de commande pour commander les unités d'entraînement (22, 24).
  10. Dispositif de levage selon la revendication 9, caractérisé en ce que les unités d'entraînement (22, 24) peuvent être activées et / ou arrêtées chacune par l'intermédiaire d'un signal de commande.
  11. Procédé de déplacement d'un chariot élévateur, caractérisé en ce que le chariot élévateur (8) est déplacé verticalement par l'intermédiaire d'un dispositif de levage (4) selon l'une quelconque des revendications 1 à 10.
  12. Procédé selon la revendication 11, caractérisé en ce qu'un des deux dispositifs d'enroulement (18, 20) est entraîné pour le déplacement vertical du chariot élévateur (8).
  13. Procédé selon la revendication 11, caractérisé en ce que les deux dispositifs d'enroulement (18, 20) sont entraînés pour le déplacement vertical du chariot élévateur (8).
  14. Procédé selon l'une quelconque des revendications 11 à 13, caractérisé en ce que, dans le cas d'un malfonctionnement d'un dispositif d'entraînement (26, 28) d'un des deux dispositifs d'enroulement (18, 20), le chariot élévateur (8) est déplacé par l'intermédiaire du dispositif d'entraînement (28, 26) de l'autre dispositif d'enroulement (20, 18).
EP18179645.9A 2017-06-29 2018-06-25 Dispositif de levage et procédé de déplacement d'un chariot élévateur Active EP3428115B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017114576.1A DE102017114576A1 (de) 2017-06-29 2017-06-29 Hebeeinrichtung und Verfahren zum Bewegen eines Hubschlittens

Publications (2)

Publication Number Publication Date
EP3428115A1 EP3428115A1 (fr) 2019-01-16
EP3428115B1 true EP3428115B1 (fr) 2022-08-24

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EP18179645.9A Active EP3428115B1 (fr) 2017-06-29 2018-06-25 Dispositif de levage et procédé de déplacement d'un chariot élévateur

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DE (1) DE102017114576A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN111573554A (zh) * 2020-05-18 2020-08-25 广西南宁市弘翔机电设备有限公司 一种基于齿轮齿条的可移动升降台
CN112027968B (zh) * 2020-08-31 2022-04-05 国网河南省电力公司西峡县供电公司 一种变电站检修用升降台

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4658889A (en) * 1988-12-02 1990-06-26 Bruce Roland Tigwell A crane assembly
DE10257108B4 (de) * 2002-12-05 2008-05-21 Eisenmann Anlagenbau Gmbh & Co. Kg Fahrbare Hubvorrichtung
JP2007507402A (ja) * 2003-10-01 2007-03-29 ロゴス−イノヴァチオーネン ゲーエムベーハー リフティング装置、特にエレベータあるいはリフティングプラットフォーム
DE102005004964B4 (de) * 2005-02-02 2008-04-03 Sew-Eurodrive Gmbh & Co. Kg Vorrichtung zum Antreiben einer Last, Krananlage und Verfahren zum Betreiben einer Vorrichtung zum Antreiben
AT512986B1 (de) 2012-06-01 2014-07-15 Tms Turnkey Mfg Solutions Gmbh Hebeeinrichtung
US20150158701A1 (en) * 2013-12-10 2015-06-11 Thyssenkrupp Elevator Corporation Low-rise elevator
DE102015002532A1 (de) 2015-03-02 2016-09-08 Liebherr-Verzahntechnik Gmbh Fahrwagen für ein Palettenhandhabungssystem

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DE102017114576A1 (de) 2019-01-03

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