WO2012140295A1 - Appareil de levage et transélévateur pour le transport de charges - Google Patents

Appareil de levage et transélévateur pour le transport de charges Download PDF

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Publication number
WO2012140295A1
WO2012140295A1 PCT/ES2012/070229 ES2012070229W WO2012140295A1 WO 2012140295 A1 WO2012140295 A1 WO 2012140295A1 ES 2012070229 W ES2012070229 W ES 2012070229W WO 2012140295 A1 WO2012140295 A1 WO 2012140295A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting
axis
cradle
columns
vertical
Prior art date
Application number
PCT/ES2012/070229
Other languages
English (en)
Spanish (es)
Inventor
Albert FORÉS RÀFOLS
Original Assignee
Mecalux, S.A
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 Mecalux, S.A filed Critical Mecalux, S.A
Publication of WO2012140295A1 publication Critical patent/WO2012140295A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/04—Storage devices mechanical
    • 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"
    • 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 invention proposes the development of a lifting cradle intended to be installed in a two-column stacker crane and a stacker crane for transporting loads with a constructive configuration that improves the area of cargo space.
  • transelevator machines are well known, which are machines that perform functions of storage at height and along narrow aisles between rows of shelves, fully automatically and without an on-board operator, incorporating three axes of displacement corresponding to the translation axis X, elevation axis Y and extraction axis Z.
  • bicolumna A type of transelevador called bicolumna is that provided with two vertical columns through which a cradle moves, however, in practice a series of inconveniences have been detected.
  • a first drawback is the space occupied by the closet or electrical cabinets shipped in the lifting cradle that usually be important in relation to the space occupied by the load to be transported and therefore also in relation to the general space of the lifting cradle, significantly affecting the overall dimensioning of the machine, in particular, in regard to the length of the cradle and therefore the stacker.
  • the stacker cranes use an electric transmission by cable-carrier chain between the main boarding cabinet and the lifting cradle, said cable-chain requiring extra space in the lifting area between the two columns, which implies an elongation of the design of the cradle in the longitudinal direction of the translation aisle, and therefore, an increase in the total length of the translation aisle, and therefore an increase in the total length of the transelevator, directly affecting the necessary free length at the ends from the warehouse aisle.
  • Another inconvenience detected is that associated with the use of commercial pipes to form the vertical elevation columns, where the presence of dimensional irregularities in the section impairs the vertical guidance of the cradle due to the fact that continuous contact and pressure of the wheels is not obtained. guided on the walls of the tubes that form the columns.
  • Sizing of the lower frame is also required due to the fact that the main vertical loads acting on it, transmitted at the points of attachment of the lifting columns, are displaced from the support points that are the translation wheels, and also due to the need for its design to allow the lifting cradle to descend to the minimum possible height to be able to store boxes in a warehouse taking full advantage of the available physical height, lowering as much as possible from the ground level.
  • the present invention has been developed in order to provide a cradle for a stacker intended for transporting loads that solves the aforementioned inconveniences, also providing additional advantages that will be apparent from the description that follows.
  • a cradle for a stacker comprising a frame provided with a support structure suitable for supporting a load extracting device, in which the support structure has two cross members connected to each other. by its ends by two bars, and guiding means for the displacement of the support structure along columns provided in a stacker.
  • the invention is characterized by the fact that the guiding means have a pair of internally hollow housings, each of which is supported on a bar, in which interior drive and electric control means are provided for the activation of load-extracting devices attached to the crossbars, and a plurality of lifting guide wheels located on an outer side face of each of the housings that, in a cradle mounting condition in a stacker crane, travel along of the vertical columns present in the stacker.
  • two electrical cabinets are arranged, each being supported in a respective housing such that they protrude externally with respect to the loading surface defined by the two crossbars and the two bars, in which one of The electrical cabinets are connected by means of brush-type connections with an electrical power supply located in one of the columns of the stacker crane, and in which the guiding means are mounted on each of the bars.
  • the described configuration of the electrical cabinets allows a greater use of the vertical travel stroke and allows to reduce the distance between columns in a stacker crane, which means a smaller loss of space at the ends of the transfer aisles for the stacker crane in an installation of storage and, consequently, greater use horizontal storage space in such storage facility.
  • the guiding means include a mounting of vertical guide wheels on the X axis located in each of the housings, such that the axis of rotation of the vertical guide wheels on the Z axis is perpendicular to the axis of the wheels of guided in elevation in the X axis, being able to realize displacements of predetermined career in the X axis of floating form.
  • the assembly of vertical guide wheels on the X axis comprises a wheel, whose axis of rotation is mounted on a linearly and axially movable support block along at least one axis for carrying out a axial displacement of the wheel forward and backward, in which the axle includes elastic means.
  • the presence of these elastic means favors that the wheel is always in contact with the surface of the lifting column adapting to any possible irregularity presented in the surface on which the wheel slides.
  • This assembly solves the problem generated by the imperfections of the surface of the walls of the vertical columns, in terms of lack of flatness or parallelism.
  • said imperfections require the incorporation of mechanized or calibrated guides to ensure flatness and parallelism within predetermined values, so that the cost becomes more expensive.
  • the fact that the wheel is movable and provided with elastic means means that in sudden braking during the movement of a stacker crane, or in the case of impacts of a stacker crane against the end stops of aisles in a storage facility, Elastic means generate a small displacement of deceleration instead of an impact, so it reduces the damage to guide components and walls of the elevation columns.
  • the aforementioned elastic means comprise springs that abut at one end with a fixed surface on the shaft and at the opposite end butt with a housing made in the support block.
  • the vertical guide wheel assembly on the X axis includes a sheet on which the support block rests, which has a fold from which the axes provided with the elastic means stand out.
  • it can comprise guiding means for the displacement of the support block with respect to the sheet.
  • the crossbars of the cradle support structure have a plurality of aligned holes, which allow different types of extraction devices to be installed in the cradle without the need to physically modify it or make multiple adaptations to different extraction devices.
  • this stacker crane is characterized by the fact that the lower frame comprises an elongated body formed by two spaced and symmetrical profiles with respect to the X axis that are joined by an upper central plate, the vertical elevation columns being fixed on the elongated body, in such a way that the two profiles and the central plate form an inner housing through which the translation rail passes, each of the ends of such two profiles being coupled to translation heads that house the driving means, including in each of said translation heads at least one reinforcement bar between each translation head and a point in the lower area of the lift column closest to it fixed by fixing elements, the reinforcement bar having an inclined arrangement with respect to the horizontal plane.
  • this reinforcing bar improves the rigidity of the overall structure of the stacker crane, without having to use columns formed by composite profiles or with sections of variable size, as is currently done, to Increase the resistance of the lifting columns at its lower end, which is the point where it receives the greatest effort.
  • the previous configuration allows to reduce the distance between wheels of translation with respect to the current technique, in which the lower ends of the lifting columns are usually of greater section and therefore usually occupy more space on the lower frame, forcing to increase The wheelbase This saving of distance between wheels of translation translates in a smaller length of the set of the transelevador and in a better use of the useful space of the warehouse.
  • the fasteners consist of a plurality of fastener holes made at ends of the reinforcing bar through which fasteners pass.
  • Each of the two profiles that make up the elongated body of the lower frame has a substantially "C" shape, being folded along the length of each profile a bent sheet defining a hollow cavity between the inside face of the bent sheet and the outer face of the profile that allows the location of conduits and cables so that they are hidden and protected against possible shocks or damage.
  • the shape of the section of the lower frame, surrounding the translation lane on which the stacker is moving, allows it to be located at a spatially low level, thus allowing the cradle of the stacker to work at the lowest level possible and therefore take full advantage of the vertical storage space.
  • one of the columns longitudinally includes an outlet track from the lower to the upper end.
  • Figure 1. It is a perspective view of a stacker for the transport of cargo according to the present invention.
  • Figure 2. It is a perspective view of the upper section of the stacker crane that includes a lifting cradle in accordance with the present invention
  • Figure 3. It is a front elevational view of a lower section of the stacker according to the invention.
  • Figure 4. It is a perspective view of the lower frame of the stacker represented in the previous figures in which the vertical columns have been removed for reasons of clarity;
  • Figure 5. It is a perspective view of a lifting cradle according to the present invention without the extraction device;
  • Figure 6 It is a side elevation view of the lifting cradle shown in Figure 5 where some parts have been removed;
  • Figure 7. It is a detailed perspective view of a vertical guide wheel assembly on the X axis to be mounted in the cradle;
  • Figure 8 It is a cross-sectional view of the vertical guide wheel assembly on the X axis indicated by a circle in Figure 6;
  • Figure 9. It is a side elevation view of the lower frame of the lifting cradle
  • Figure 10. It is a cross-sectional view of the elongated body of the lower frame that is part of the stacker on a rail;
  • Figure 11.- It is a cross-sectional view seen from above of the guiding means for moving the cradle; Y
  • Figure 12.- It is a perspective view of a section of an automatic storage installation provided with the stacker according to the invention.
  • a stacker for the transport of loads, such as boxes or the like, indicated in general with reference (1), suitable for an automatic storage installation (see figure 12) that travels along a translation rail (2) located at ground level and is mainly provided with a lifting cradle (3) movable along two lifting columns (4) that are supported on a lower frame (5) and run parallel to each other.
  • the X axis corresponds to the translation axis, the Y axis to the elevation axis and the Z axis in which an extraction device associated with the lifting cradle (3) is moved in the horizontal plane.
  • the lower frame (5) mainly comprises an elongated body (9) formed by two profiles joined by an upper central plate on which the vertical columns (4) are fixed, each of the ends of such two profiles being fixed coupled to translation heads (6) that house the translation wheels (7), and a gearmotor (8) associated with one of the wheels for actuation, as can be seen in Figure 3.
  • a pair of reinforcing bars (10) are included between each translation head (6) and a point in the lower area of the column (4) closest to it (see Figure 3) fixed by fixing elements,
  • the reinforcement bars (10) have an inclined arrangement with respect to the horizontal plane so that they provide greater structural rigidity thanks to their triangular geometry.
  • the fixing elements consist of a plurality of fixing holes made at the ends of the bars of reinforcement (10) through which fasteners (11) pass.
  • the elongated body (9) that composes the lower frame (5) is composed of two sheet profiles (51) substantially folded in the form of "C" and symmetrical with respect to the central axis of translation X, and being located on each side of the translation rail (2); an upper central plate (52) joining the previous profiles (51) and which is located above the translation rail (2) and; two bent sheets (53), one associated with each sheet (51) that reinforce the profiles generating in turn a hollow conduit (54) through which the electrical wiring passes for the operation of the various parts of the stacker crane (1). All the previous profiles and plates are joined together by welding and together they form a composite section with sufficient stiffness and resistance to withstand the necessary efforts and at the same time achieve a location of the set with respect to the ground level as low as possible.
  • the vertical lifting columns (4) are basically formed by two hollow profiles of rectangular tube of standard type, that is commercially available, which perform the guiding function in the elevation of the lifting cradle thanks to the contact of the elevation guide wheels on the X and Z axes (12, 13) with walls of such profiles.
  • One of the lifting columns (4) incorporates an electrical outlet rail (14), formed by multiple tracks, to carry out the electrical transmission from the main electrical cabinet (15) fixed on one side of the column (4) provided with the rail (14) to the lifting cradle (3) at any point of its vertical displacement .
  • the lifting columns (4) also serve as a fixing base for the lifting drive group and the main electrical cabinet, as described above. As it is a commercial profile, its design and cost are simplified, the section of the profile being uniform along its entire length.
  • a structural connecting element (34) is provided between the upper ends of the two lifting columns, in which accessory elements for the lifting system, such as the pulleys, are incorporated (16) intended for guiding a lifting cable attachable to the lifting cradle (3) and the upper guide wheels in translation (17).
  • the lifting cradle (3) comprises a frame provided with a support structure suitable for supporting a load extracting device that acts on the Z axis (see Figure 2), indicated generally with the reference (40) and which will not go into greater detail in its description to be of known type.
  • the support structure has two crossbars (31) joined together at their ends by two bars (32), and guiding means for moving the support structure to the length of columns provided in the stacker (1) described below.
  • the crossbars (31) have a plurality of longitudinally aligned through holes (41) used to fix the aforementioned extraction device (40).
  • Two electrical cabinets (18) are arranged, each of which is supported in a respective housing (20) in such a way that they protrude externally from the load surface defined by the two crossbars (31) and the two bars (32), wherein one of the electrical cabinets (18) is connected by means of brush type connections (19) with the electrical outlet rail (14), so that the brushes are at all times in contact with said electrical outlet rail of current (14). Mention that the guiding means are mounted on each of the bars (32) as will be described later.
  • the guiding means have a pair of internally hollow and closable housings (20) by means of two side covers (201), each of the housings being on each bar (32), in which interior drive and control means are provided electric for the load extraction device, and the four vertical guide wheels on the Z axis (12) in elevation located on an outer side face of the housing (20) which, in a mounting condition of the lifting cradle ( 3), they slide along the two side walls of the vertical columns (4).
  • the housings (20) and electrical cabinets (18) located in the lifting cradle (3) are also intended to contain electrical and electronic control elements, with the peculiarity that instead of using a single cabinet of greater volume, such as In the prior art, the two housings (20) and the two cabinets (18) of smaller dimensions that are located in such a way that the free space next to the two lifting columns (4) is used is used.
  • the guide means of the lifting cradle (3) include a pair of vertical guide wheel assemblies on the X axis (21) located in the housings (20), each associated with a vertical lifting column (4), where the axis of rotation of the vertical guide wheels on the X axis is perpendicular to the axis of the elevation guide wheels on the Z axis.
  • the axis of rotation (22) of the wheel (13) is mounted on a support block (23), made for example of plastic material and with a substantially shaped shape.
  • "U” which can slide linearly along a pair of elongated axes (24) that pass through respective through holes (25) made in the support block (23), which allow to carry out an axial movement of forward and reverse of the support block and therefore of the wheel (13).
  • the shaft (24) includes a helical spring (26) that stops at one end with a fixed surface (27) on the shaft and at the opposite end stops at a practiced housing in the support block (23), so that the wheel (13) exerts a continuous pressure against the wall of the lifting column (4).
  • an "L” shaped sheet (28) is provided fixed on the bar (32) on which the support block (23) rests and the two axes (24) are attached.
  • the mounting of vertical guide wheels on the X axis has guiding means to guide the movement of the support block (23) with respect to the "L" shaped sheet (28) consisting essentially of two guides ( 29) located on the "L” shaped sheet (28) that are fixed with hardware elements (30).

Landscapes

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

Abstract

L'invention concerne un appareil de levage (3) pour un transélévateur, qui comprend un bâti pourvu d'une structure de support adéquate pour porter des dispositifs d'extraction de charge (40), dans lequel la structure de support présente deux traverses (31) assemblées l'une à l'autre sur leurs extrémités par deux barres (32), et des moyens de guidage pour déplacer la structure de support le long de deux colonnes disposées dans un transélévateur (1), les moyens de guidage présentant une paire de carcasses, chacune étant portée sur une barre, à l'intérieur de laquelle sont situés des moyens d'actionnement et de commande électrique pour l'activation de dispositifs d'extraction de charge unis aux traverses (31), et une pluralité de roues de guidage en hauteur situées dans une face latérale extérieure de chaque carcasse qui, en condition de montage de l'appareil dans un transélévateur, se déplacent le long de colonnes verticales (4).
PCT/ES2012/070229 2011-04-15 2012-04-03 Appareil de levage et transélévateur pour le transport de charges WO2012140295A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201130598A ES2364685B1 (es) 2011-04-15 2011-04-15 Cuna de elevación y transelevador para el transporte de cargas.
ESP201130598 2011-04-15

Publications (1)

Publication Number Publication Date
WO2012140295A1 true WO2012140295A1 (fr) 2012-10-18

Family

ID=44487174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2012/070229 WO2012140295A1 (fr) 2011-04-15 2012-04-03 Appareil de levage et transélévateur pour le transport de charges

Country Status (2)

Country Link
ES (1) ES2364685B1 (fr)
WO (1) WO2012140295A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601125A (zh) * 2013-12-02 2014-02-26 无锡中鼎物流设备有限公司 一种堆垛机的天轨结构
EP2883831A1 (fr) * 2013-12-10 2015-06-17 Stöcklin Logistik AG Appareil de stockage et de récupération
WO2018068500A1 (fr) * 2016-10-13 2018-04-19 罗伯泰克自动化科技（苏州）有限公司 Base de support de roue de guidage horizontale

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2436056B1 (es) * 2013-07-09 2014-09-30 Mecalux, S.A. Dispositivo elevador para la manipulación de cajas o similares, una cuna elevadora provista de dicho dispositivo elevador y un transelevador provisto de tal cuna elevadora.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002068406A (ja) * 2000-08-31 2002-03-08 Itoki Crebio Corp 自動倉庫の二重格納防止装置
JP2004059190A (ja) * 2002-07-26 2004-02-26 Daifuku Co Ltd 物品搬送設備
JP2004115157A (ja) * 2002-09-24 2004-04-15 Ishikawajima Transport Machinery Co Ltd 自動倉庫及びスタッカクレーン及びフォーク装置
US20060049783A1 (en) * 2004-09-08 2006-03-09 Daifuku Co., Ltd. Article transport vehicle
ES2351333A1 (es) * 2010-09-06 2011-02-03 Mecalux S.A. Transelevador para el transporte de cargas.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002068406A (ja) * 2000-08-31 2002-03-08 Itoki Crebio Corp 自動倉庫の二重格納防止装置
JP2004059190A (ja) * 2002-07-26 2004-02-26 Daifuku Co Ltd 物品搬送設備
JP2004115157A (ja) * 2002-09-24 2004-04-15 Ishikawajima Transport Machinery Co Ltd 自動倉庫及びスタッカクレーン及びフォーク装置
US20060049783A1 (en) * 2004-09-08 2006-03-09 Daifuku Co., Ltd. Article transport vehicle
ES2351333A1 (es) * 2010-09-06 2011-02-03 Mecalux S.A. Transelevador para el transporte de cargas.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601125A (zh) * 2013-12-02 2014-02-26 无锡中鼎物流设备有限公司 一种堆垛机的天轨结构
EP2883831A1 (fr) * 2013-12-10 2015-06-17 Stöcklin Logistik AG Appareil de stockage et de récupération
WO2018068500A1 (fr) * 2016-10-13 2018-04-19 罗伯泰克自动化科技（苏州）有限公司 Base de support de roue de guidage horizontale

Also Published As

Publication number Publication date
ES2364685B1 (es) 2012-05-22
ES2364685A1 (es) 2011-09-12

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