EP3594171B1 - Dispositif de transport - Google Patents

Dispositif de transport Download PDF

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Publication number
EP3594171B1
EP3594171B1 EP18182462.4A EP18182462A EP3594171B1 EP 3594171 B1 EP3594171 B1 EP 3594171B1 EP 18182462 A EP18182462 A EP 18182462A EP 3594171 B1 EP3594171 B1 EP 3594171B1
Authority
EP
European Patent Office
Prior art keywords
belt
transport device
travel path
drive
profile
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
EP18182462.4A
Other languages
German (de)
English (en)
Other versions
EP3594171A1 (fr
Inventor
Jörg Cavelius
Elmar Harting
Johannes Knoblauch
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.)
Jungheinrich AG
Original Assignee
Jungheinrich AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jungheinrich AG filed Critical Jungheinrich AG
Priority to EP18182462.4A priority Critical patent/EP3594171B1/fr
Priority to ES18182462T priority patent/ES2875750T3/es
Publication of EP3594171A1 publication Critical patent/EP3594171A1/fr
Application granted granted Critical
Publication of EP3594171B1 publication Critical patent/EP3594171B1/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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/07—Floor-to-roof stacking devices, e.g. "stacker cranes", "retrievers"
    • B66F9/072—Travelling gear therefor

Definitions

  • the present invention relates to a transport device, in particular a storage and retrieval unit, with a driveway, a carriage that can be moved along the driveway, and at least one stationary belt that is arranged along the driveway, rests on a support surface and at a first end and on one second end of the travel path is set relative to the travel path, the carriage having a drive device which is in engagement with the belt.
  • a transport device in particular a storage and retrieval unit, with a driveway, a carriage that can be moved along the driveway, and at least one stationary belt that is arranged along the driveway, rests on a support surface and at a first end and on one second end of the travel path is set relative to the travel path, the carriage having a drive device which is in engagement with the belt.
  • a stacker crane has a mast on the carriage on which a lift truck can be moved vertically.
  • Load handling devices are arranged on the lifting truck and can be moved transversely to the travel path in order to be able to remove pallets, containers or the like from a shelf.
  • the drive device is often designed as a so-called omega drive, in which the belt is guided over a driven drive wheel. When the drive wheel turns, the car pulls itself along the belt, so to speak, into the desired position.
  • the invention is based on the object of keeping the times for moving to a certain position small in a transport device.
  • a transport device of the type mentioned at the outset in that at least one detachable fixing device is arranged between the first end and the second end, with which the belt can be fixed relative to the travel path. It is assumed here that the oscillation of the carriage at the end of a movement is due to the fact that the belt acts as a kind of spring due to its elasticity. If you now have the opportunity to shorten the free length of the belt by fixing the belt between the first and the second end by the at least one detachable fixing device, then you can also weaken the effect of the spring formed thereby, so that the Pendulum motion no longer results in the scope. Depending on the properties of the belt, a free belt length of 80 m can still be tolerated, while the locking device can be used for longer lengths.
  • the fixing device preferably has at least one holding element which can be moved with a drive between a holding position within a movement space of the carriage, in which it fixes the belt relative to the travel path, and a release position outside the movement space of the carriage, in which it releases the belt .
  • the holding element can therefore on the one hand fix the belt in order to keep the free path length associated with the drive of the carriage short. On the other hand, it can release the belt in order to allow the carriage with its drive to drive past the fastening device.
  • One can then ensure, for example, that the fixing device fixes the belt again relative to the travel path after the carriage has passed.
  • the holding element can preferably be moved transversely to the travel path. This is a relatively simple measure to bring the holding element out of the movement space of the carriage.
  • the holding element can be moved perpendicular to the support surface. If the holding element can be moved perpendicular to the support surface, then in the holding position it can exert a normal force on the belt, that is to say press the belt against the support surface. It is also possible to move the holding element both perpendicular to the support surface and transversely to the support surface, that is to say transversely to the direction of movement of the carriage. The holding element is then moved, so to speak, in a plane on which the support surface is perpendicular.
  • the drive has a relocating device with which the holding element can be moved perpendicular to the support surface.
  • a relocating device with which the holding element can be moved perpendicular to the support surface.
  • the relocating device is designed as a toggle joint.
  • a toggle joint is a relatively simple construction element that can bring about the desired movement of the holding element.
  • the toggle joint can, for example, bring about a movement of the holding element perpendicular to the support surface when a carrier of the holding element has come to rest on the rail and cannot be moved any further.
  • the travel path is formed on one side of a rail and the securing device has a carrier which is arranged on an opposite side of the rail. So you can, for example, also arrange the track on an upper side of the rail and the carrier under the underside of the rail. In this way, the carrier and the holding device do not interfere with the route. The route remains free, so that only the holding element has to be moved out of the movement space of the carriage.
  • the carrier preferably projects beyond the rail on both sides of the rail and has a holding element on both sides of the rail.
  • a configuration is particularly advantageous when the belt is divided in the longitudinal direction.
  • the two holding elements can act on the two halves of the belt. Even if the belt is undivided, it can be advantageous to use two holding elements in order to keep the holding force sufficiently high.
  • the drive acts simultaneously on both holding elements. So you only need one drive motor to be able to drive both holding elements.
  • the drive has a revolving drive belt which drives the holding elements.
  • a rotating drive belt can easily be driven by a rotary motor. Since both holding elements are driven by the drive belt, a synchronous movement of the two holding elements is possible in a simple manner.
  • the belt has a profile at least on its side facing the support surface and a counter-profile adapted to the profile is provided on the support surface at least in the area of the fixing device.
  • the profile which can be designed as a tooth profile, for example, enables a very stable engagement between the drive and the belt, so that a considerable drive power can be transmitted here.
  • This profile can then also be used to fix the belt in relation to the support surface and thus in relation to the travel path.
  • the holding element then has the option of pressing the profile of the belt into the mating profile on the support surface, so that, so to speak, a form fit, but at least a greater frictional connection, results.
  • the counter-profile is arranged on a counter-profile carrier which is mounted floating relative to the support surface. Due to the stretching of the belt, it cannot always be guaranteed that the profile and the mating profile are aligned with one another in such a way that, when the holding element is actuated, engagement between the profile and the mating profile takes place automatically. But if the counter profile is arranged on the counter profile carrier, then the floating counter profile carrier can move a little to enable this engagement.
  • the counter-profile support preferably rests on the support surface. Basically, no further measures are required. When the counter profile beam rests on the support surface, then it automatically has a position in which it can come into engagement with the profile of the belt.
  • the counter-profile carrier is preferably arranged between holding elements which at least partially encompass the counter-profile carrier in a direction transverse to the belt. This means that the counter-profile carrier can be moved a small distance in the longitudinal direction of the belt, that is, in the direction of movement of the carriage, but movement transversely to the direction of movement of the carriage is excluded.
  • Fig. 1 shows, in a highly schematic manner, a transport device in the form of a storage and retrieval unit 1 with a carriage 2 which can be moved along a travel path.
  • the guideway 4 is formed here in a rail 3 or rail arrangement, more precisely on a base of a U-shaped recess in the rail 3.
  • a mast 5 is arranged on the carriage 2.
  • a lift truck can be moved vertically up and down in a manner not shown, which carries load handling devices which can be moved transversely to the longitudinal direction of the rail 3, as is known from storage and retrieval units.
  • a drive 6 is arranged on the carriage 2 and has a driven wheel 7 which is in engagement with a belt 8.
  • the belt 8 is guided around the drive wheel 7 in an omega-like manner by two guide rollers 9, 10, so that the drive 6 can be referred to as an "omega drive".
  • the belt 8 is divided into two, ie it has two halves which are arranged on the left and right of the carriage 2. Accordingly, the in Fig. 1 A corresponding drive wheel 7 is arranged on the rear side of the carriage 2, not visible.
  • the rail arrangement 3 has a support surface 11 on which the belt 8 rests. Even if it is not a split belt, as in the present case, so that one could in principle also speak of two belts, only the term “belt” is used in the singular for the sake of simplicity.
  • the belt 8 is fixed at a first end and at a second end of the travel path 4 formed in the rail 3.
  • the drive wheel 7 is driven and the carriage 2 then pulls itself because the drive device 6 engages with the belt 8 stands, along the belt 8 until it has reached a desired position.
  • the belt 8 is elastically stretchable.
  • the carriage 2 with mast 5 and possibly a load that has been picked up can definitely have a mass of several hundred kilograms.
  • the belt 8 which is elastically stretchable, is stretched.
  • the belt 8 acts like a spring which pulls the carriage 2 back a little from the stopped position, with the other end of the belt 8 stretching. This leads to a pendulum movement, which makes it difficult to approach a desired position precisely. You have to wait for the end of the pendulum movement in order to be able to go exactly to the desired position.
  • a securing device 12 is now provided, which is in the Figs. 2 and 3 is shown.
  • the securing device 12 has on both sides of the rail arrangement in each case a holding element 13, which consists of the in Fig. 2 release position shown in a in Fig. 3 shown holding position can be moved.
  • the securing device 12 has a carrier 14 which is arranged under the rail 3, so that the carrier 14 with further elements mounted thereon does not interfere with a movement of the carriage 2.
  • a drive motor 15 is mounted on the carrier 14 and drives both holding elements 13 via a drive belt 16.
  • the drive belt 16 is also passed under the rail arrangement 3. Since the drive belt 16 acts on both holding elements 13 at the same time, the holding elements are driven in the same direction and synchronously.
  • Each holding element 13 is arranged on a lever 17 which can be pivoted about a pivot point 18 on the carrier 14. The holding element 13 is thus moved transversely to the direction of movement of the carriage 2 when it is moved from the holding position into the release position or vice versa.
  • the lever 17, in turn, is pivoted via a tappet 19, which is connected to the drive belt 16 via a connecting element 20.
  • the lever 17 In the area of its upper end, the lever 17 has a section 21 which telescopes against a spring (not shown) and which can be moved relative to the lever 17 via a toggle lever 22.
  • the toggle lever 22 thus forms part of a toggle joint.
  • the toggle joint is a form of a relocating device with which a drive movement transverse to the rail 3 can be converted into a movement perpendicular to the contact surface 11.
  • the belt 8 has a profile at least on its side facing the contact surface 11.
  • this profile is designed as a tooth profile.
  • a profile carrier 22 is arranged on the contact surface 11, which has a corresponding counter profile 23.
  • the counter profile 23 is adapted to the profile of the belt 8, so that, as shown in Fig. 7 can recognize, a form fit can be achieved when the belt 8 is inserted with its profile in the counter-profile carrier 22.
  • the counter-profile support 22 is held in place on the contact surface with the aid of spring plates 24.
  • the counter-profile carrier 22 is arranged between holding elements 25 which at least partially encompass the counter-profile carrier 22 in a direction transverse to the belt 8. This prevents the counter-profile carrier 22 from being able to be displaced away from the support surface 11.
  • the counter-profile carrier 22 otherwise simply rests on the support surface 11 and can be moved a small distance, for example a tooth pitch of the profile, along the travel path 4 between two stops 26, ie it is mounted in a floating manner. If the profile of the belt 8 is not exactly opposite the counter profile 23, then the counter profile carrier 22 can be on the Move the support surface 11 until the profile of the belt 8 can enter the counter profile 23.
  • the free length of the belt 8 can be shortened with the holding device 12.
  • a holding device 12 can be provided every 20, 30, 40, 50 or 60 meters, for example.
  • the control can simultaneously actuate the holding device or the holding devices which are arranged along the route which the carriage 2 has to traverse in the case of the transport order.
  • the holding devices can be released before the movement begins. However, it is also possible to only release it during the movement, for example shortly before the carriage 2 reaches the respective holding device 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Transmission Devices (AREA)

Claims (14)

  1. Dispositif de transport (1), notamment transstockeur, comprenant un trajet (4), un chariot (2), qui est déplaçable le long du trajet (4) et au moins une courroie (8) stationnaire, qui est placée le long du trajet (4), qui est adjacente à une surface de contact (11) et qui est immobilisée par rapport au trajet (4), sur une première extrémité et une deuxième extrémité du trajet (4), le chariot (2) comportant un dispositif d'entraînement (6) qui est en engagement avec la courroie (8), caractérisé en ce qu'entre la première extrémité et la deuxième extrémité est placé au moins un dispositif d'immobilisation (12) désolidarisable, à l'aide duquel la courroie (8) peut être immobilisée par rapport au trajet (4).
  2. Dispositif de transport selon la revendication 1, caractérisé en ce que le dispositif d'immobilisation (12) comporte au moins un élément de retenue (13) qui est mobile à l'aide d'un entraînement (15, 16) entre une position d'arrêt intérieure à un espace de mobilité du chariot (2), dans laquelle il immobilise la courroie (8) par rapport au trajet (4) et une position de libération extérieure à l'espace de mobilité du chariot (2), dans laquelle il libère la courroie (8).
  3. Dispositif de transport selon la revendication 2, caractérisé en ce que l'élément de retenue (13) est mobile à la transversale du trajet (4).
  4. Dispositif de transport selon la revendication 3, caractérisé en ce que l'élément de retenue (13) est mobile à la perpendiculaire de la surface de contact (11).
  5. Dispositif de transport selon la revendication 4, caractérisé en ce que l'entraînement comporte un dispositif de transfert (22), à l'aide duquel l'élément de retenue est mobile à la perpendiculaire de la surface de contact.
  6. Dispositif de transport selon la revendication 5, caractérisé en ce que le dispositif de transfert (22) est conçu sous la forme d'une articulation à genouillère.
  7. Dispositif de transport selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le trajet (4) est conçu sur un côté d'un rail (3) et le dispositif d'immobilisation (12) comporte un support (14) qui est placé sur un côté opposé du rail (3).
  8. Dispositif de transport selon la revendication 7, caractérisé en ce que sur les deux côtés du rail (3), le support (14) déborde par-dessus le rail et comporte un élément de retenue (13) sur les deux côtés du rail (3).
  9. Dispositif de transport selon la revendication 8, caractérisé en ce que l'entraînement (15, 16) agit dans le même sens sur les deux éléments de retenue (13).
  10. Dispositif de transport selon la revendication 9, caractérisé en ce que l'entraînement (15, 16) comporte une bande d'entraînement (16) tournante qui entraîne les éléments de retenue (13).
  11. Dispositif de transport selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'au moins sur son côté qui fait face à la surface de contact (11), la courroie (8) comporte un profilé et en ce qu'au moins dans la région du dispositif d'immobilisation (12), il est prévu sur la surface de contact (11) un profilé antagoniste (23) adapté au profilé.
  12. Dispositif de transport selon la revendication 11, caractérisé en ce que le profilé antagoniste (23) est placé sur un support de profilé antagoniste (22) qui est logé de manière flottante par rapport à la surface de contact (11).
  13. Dispositif de transport selon la revendication 12, caractérisé en ce que le support de profilé antagoniste (22) repose sur la surface de contact (11).
  14. Dispositif de transport selon la revendication 12 ou 13, caractérisé en ce que le support de profilé antagoniste (22) est placé entre des éléments de retenue (25) qui entourent au moins partiellement le support de profilé antagoniste (22) dans une direction à la transversale de la courroie (8).
EP18182462.4A 2018-07-09 2018-07-09 Dispositif de transport Active EP3594171B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18182462.4A EP3594171B1 (fr) 2018-07-09 2018-07-09 Dispositif de transport
ES18182462T ES2875750T3 (es) 2018-07-09 2018-07-09 Dispositivo de transporte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18182462.4A EP3594171B1 (fr) 2018-07-09 2018-07-09 Dispositif de transport

Publications (2)

Publication Number Publication Date
EP3594171A1 EP3594171A1 (fr) 2020-01-15
EP3594171B1 true EP3594171B1 (fr) 2021-03-17

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Application Number Title Priority Date Filing Date
EP18182462.4A Active EP3594171B1 (fr) 2018-07-09 2018-07-09 Dispositif de transport

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EP (1) EP3594171B1 (fr)
ES (1) ES2875750T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020102828A1 (de) * 2020-02-04 2021-08-05 Witron Logistik + Informatik Gmbh Raupenantrieb für Lagerfahrzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000044012A (ja) * 1998-07-28 2000-02-15 Toyota Autom Loom Works Ltd スタッカクレーン及び自動倉庫
JP2001261112A (ja) * 2000-03-16 2001-09-26 Murata Mach Ltd 搬送装置
DE102016124450A1 (de) * 2016-12-15 2018-06-21 Jungheinrich Aktiengesellschaft Regalbediengerät
DE102016124447A1 (de) * 2016-12-15 2018-06-21 Jungheinrich Aktiengesellschaft Regalbediengerät
DE102016124454A1 (de) * 2016-12-15 2018-06-21 Jungheinrich Aktiengesellschaft Regalbediengerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
EP3594171A1 (fr) 2020-01-15
ES2875750T3 (es) 2021-11-11

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