EP3784617A1 - Transstockeur - Google Patents
TransstockeurInfo
- Publication number
- EP3784617A1 EP3784617A1 EP19718358.5A EP19718358A EP3784617A1 EP 3784617 A1 EP3784617 A1 EP 3784617A1 EP 19718358 A EP19718358 A EP 19718358A EP 3784617 A1 EP3784617 A1 EP 3784617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage
- drive wheel
- mast
- strut
- retrieval unit
- 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.)
- Withdrawn
Links
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"
Definitions
- the invention relates to a storage and retrieval device referred to in the preamble of claim 1 Art.
- stacker cranes are well known and are used for handling, especially for on or off, used by loads in shelf storage.
- the most ten stacker cranes have a chassis, a mast and a lifting slide, which is vertically movable on the mast between an upper starting position and a lower starting position.
- a control device is provided for controlling the components of the storage and retrieval unit, in particular a traction drive, the lifting carriage and a angeord Neten to the lifting device load receiving means.
- the invention is based on the object to provide a shelf operating device, through which the storage performance and storage efficiency can be improved in a rack warehouse can .
- the invention is based on the idea of providing a Regalbe diengestion, the lifting can be moved in a pos as low low starting position. As a result, such storage places can be approached and operated in a racking store, which are located in the immediate vicinity of the ground.
- the invention is based on the idea to design the storage and retrieval unit so that the system formed by the frame and the mast is as immune to vibration as possible and at the same time the lowest possible starting position is realized.
- the storage and retrieval device comprises a strut arrangement, the stiffening position between a Ver, in which the strut assembly ver stiff extends between the mast and the chassis, and a rest position is movable, in which the struts arrangement for moving the lifting carriage in the below is arranged driving position outside of the stroke of the lifting to.
- the Strebenanord tion forms an effective stiffening in the mast base, so that the system of chassis and mast is relatively unansoci lig against vibration.
- the shelf operating device can thus be moved at a high lifting and driving speed without vibrations occurring. In the se way, a high storage performance is achieved.
- the strut assembly When the lifting carriage is to be moved to the lower starting position, the strut assembly is moved to the rest position in which it is outside the stroke away from the lifting carriage. In this position, the lifting can be moved to the lower starting position who the. Without the stiffening by the strut arrangement, the system is more susceptible to vibrations. However, it is ever possible to reduce the tendency of the system to oscillate by operating at a reduced positioning speed when the lifting carriage is in the region of its lower starting position. In terms of overall storage performance, a corresponding reduction is readily acceptable.
- the storage and retrieval device allows due to a relatively low lower starting position and the approach of lying in the field of storage space, which increases the storage efficiency in terms of the best possible use of the shelf in a store available storage space by not usable for storage spaces dead space in the bearing is minimized.
- the storage and retrieval system according to the invention allows high Positioning speeds, which increases the bearing performance.
- the invention thus provides a storage and retrieval unit be ready, the combination due to its structural design in a particularly clever way a low bottom Anfahrpo position with a high positioning speed nested.
- the chassis of the storage and retrieval device has a running on the ground ver running rail guided lower chassis with egg nem along the running rail translationally movable lower drive wheel when operating the stacker crane.
- the chassis additionally has a rich in the upper loading of the mast, when operating the Regalbedi enasses guided on an upper guide rail obe res suspension with a translationally movable along the upper guide rail upper drive wheel.
- the mast will tilt, which may lead to vibrations in the sequence.
- the storage and retrieval unit has a Drivetrain for transmitting a drive torque from the lower drive wheel on the upper drive wheel, so that the driving torque generated by a drive of the Regalbedienge drive torque is introduced both in the lower drive wheel on and in the upper drive wheel and, accordingly, the upper drive wheel associated separate drive is not required.
- the Regalbedienge invention advises a relatively simple and thus low maintenance on construction.
- this path difference is inventively compensated by temporarily set at the upper drive wheel rads deviating from the speed of the lower drive speed becomes.
- arranged in the drive train between the Unte Ren drive wheel and the upper drive wheel can be controlled by the control device speed superimposition gearbox.
- the operating principle of a Drehiereüberlagungsge gear is based on the principle of a planetary gear, but with the difference that the outer ring of the plane tengetriebes not firmly connected to the main body of the planet gear, but by means of a rotatable by a rotary drive worm shaft is rotatable so that depending on the direction of rotation Outer ring the output speed can be positively or negatively influenced. Thus, within certain design limits, the operating speed deviates from the drive speed. be presented.
- the storage and retrieval device may comprise sensor means which are designed to detect a translational path difference between the lower drive wheel and the upper drive wheel during a movement of the storage and retrieval device and with the control device in signal transmission connection are for transmitting a path difference signal to the control device, wherein the control device for controlling the speed superposition gear is formed and programmed such that the speed superimposition gearbox is driven in accordance with a detected Wegdiffe difference to compensate for the path difference.
- the storage and retrieval device according to the invention can be operated with a ho hen positioning speed, so that the above in connection with the claim 1 maril derten advantages, wherein in the above also in connection with the claim 1 way, the storage and retrieval unit can nevertheless have a relatively low lower starting position.
- a particular advantage of specified in claim 2 Storage and retrieval device is that in case of power failure, the last position or position of the mast is maintained, which is not possible in an electric head drive in case of power failure.
- claim 1 and claim to 2 can be used to achieve a high Positioning speed at the same time lower lower starting position each taken for themselves. However, they can also be combined with each other.
- the storage and retrieval unit has a drive train for transmitting a drive torque of a traction drive from the lower drive wheel to the upper drive wheel, wherein in the drive train between the lower drive wheel and the upper drive Rad is a controllable by the control device speed superposition gear is arranged.
- the storage and retrieval device has a strut arrangement between a rule stiffening position in which the Stre benanssen stiffening between the mast and the running gear extends, and a rest position is movable in which the strut arrangement for moving the lifting carriage is arranged in the lower starting position outside the stroke of the lifting carriage.
- the control device for controlling the lifting carriage is set up and programmed so that when stiffened in the stiffening Stre benanowski the stacker crane with a higher lifting and driving speed and be in the rest position sensitive strut arrangement, the stacker crane with egg ner lower lifting and driving speed is movable or moves.
- the storage and retrieval unit is operated in an advantageous manner with one in the sense of avoiding vibrations in each case hömög union positioning. If the strut arrangement is in the stiffening position and the system is accordingly less susceptible to vibrations, a higher positioning speed is used. If the lower starting position of the lifting carriage to be approached and accordingly the strut assembly must be moved to the rest position, it is operated speed with a lower Positionierge. Under the condition that vibrations should be avoided, so is always gearbei tet with a maximum positioning speed.
- the strut arrangement can be biased by Fe derstoff in the stiffening position, wherein the lifting pushes the strut assembly against the spring action of the spring means in its rest position when the lifting moves in the region of the Mastfußes in which the strut assembly is located.
- the strut assembly returns under spring action the spring means back to its stiffening position.
- control device for driving the positioning drive is designed and programmed in such a way that the positioning drive moves the strut arrangement into the rest position when the lifting carriage is in a movement in the direction of the lower approach position of the approaches the stiffening position strut assembly approaches.
- the positioning drive has at least one Hydraulikzy cylinder.
- a pressure relief valve may be arranged in the hydraulic circuit of the hydraulic cylinder. If in a movement of the Hubschlit least, for example, due to a fault, the strut arrangement is not automatically moved from the stroke of the Hubschlit least, so the lift pushes the struts arrangement in its rest position, wherein the pressure relief valve opens and in this way damage to the strut arrangement or the hydraulic cylinder is avoided.
- the strut assembly may have a continuous strut in the simplest case that stiffening in the stiffening position extends between the mast and the chassis and is moved by a suitable order from the stroke of the lifting, when the lifting moves in the direction of the lower driving position .
- the Strebena arrangement has a first strut part and a second Strebent express that are formed and connected to a hinge axis hinged together that they in the stiffening a straight, stiffening between mast and chassis form extending strut and in the rest position angled, in particular at right angles, are arranged to each other. In this way, the Stre benan angel in their function is further improved.
- the stiffening position which consists of the first strut member and the second strut part Stre benanssen in a dead center, resulting in an extremely high stiffening effect in the longitudinal direction of the strut due to the straight course of the strut formed by the first strut member and the second strut.
- the dead center can be overcome by loading the strut assembly transversely to the longitudinal direction of the strut with little effort, so that a moving with relatively low power is sufficient to move the strut assembly between the rest position and the stiffening position.
- a further development of the aforementioned embodiment provides that the first strut part with its end facing away from the Ge is pivotally connected to the mast at a pivot point and that the second strut part is guided with its end remote from the hinge axis linearly displaceable ver on the chassis, so that in the rest position, the first strut part is applied parallel to the mast extending to the mast, the second
- Strut part is applied to the landing gear arranged at right angles to the first strut part.
- a further development of the aforementioned embodiment provides that the positioning drive is connected to the strut arrangement such that the Positionieran drive pushes the strut assembly in the stiffening position and moves into the rest position.
- the drive train between the lower drive wheel and the upper drive wheel can be performed in accordance with the respec conditions requirements and design conditions in many ways.
- An advantageous development of the invention provides insofar as in the drive train between the lower drive wheel and the upper drive wheel, a cardan shaft assembly is arranged.
- a path difference between the lower drive wheel and the upper drive wheel which is decisive for a control on the speed superposition gear, be detected by any suitable sensor means.
- the storage and retrieval unit has sensor means which are used to detect a translational pathway. Difference between the lower drive wheel and the upper drive wheel are formed in a movement of the storage and retrieval device with the control device in Sig nalübertragungseducation stand for transmission of a path difference signal to the control device, wherein the control device for controlling the speed of superposition gear is formed and programmed program is that the Speed superposition gearbox accordingly a detected path difference is controlled or is driven to compensate for the path difference.
- both the lower drive wheel and the upper drive wheel can each be assigned a displacement measuring system.
- a shelf storage according to the invention is specified in claim 14. It has at least one inventive Re galbedien réelle on.
- FIG. 2 is a side view of the Regalbedienge advises according to FIG. 1,
- Fig. 3 shows a block diagram of components of the storage and retrieval unit according to FIG. 1,
- FIG. 4 is a perspective view of a Ein zelheit the stacker crane of Figure 1 in the region of a Strebenanord voltage, wherein the strut assembly is in its stiffening stön det,
- FIG. 6 shows a side view of the strut arrangement according to FIG. 4 in the stiffening fung position
- FIG. 8 is a perspective view of a one zelheit the stacker crane of Figure 1 in the region of a lower drive
- FIG. 11 is a perspective view of a single unit of the storage and retrieval device in the region of the speed superposition gear
- Fig. 12 in a side view of the detail of FIG. 11 in the range of rotation number superposition gear and Fig. 13 in a perspective view, a one zelheit in the region of the upper end of the mast of the storage and retrieval device.
- Fig. 1 shows in a perspective view of an Ausry approximately example of a storage and retrieval device 2 according to the invention, which has a chassis 4, that during operation of the Re galbedien réelles 2 on a running on the ground running rail 6 is guided.
- a mast 8 is connected to which a lifting 10 by means of a
- Lifting drive between an upper starting position and egg ner lower starting position is vertically movable.
- the general structure of corresponding storage and retrieval units is generally known to the person skilled in the art and will therefore not be explained in more detail here.
- Fig. 2 shows the stacker crane 2 in a side view.
- the storage and retrieval unit 2 has a control device 12 for controlling the components of the storage and retrieval unit 2.
- the control device 12 is in control connection, inter alia, with a traction drive 14 of the storage and retrieval device 2 and a Huban drive 16 of the lifting slide 10th
- the storage and retrieval device 2 has a rail arrangement 18, which is arranged between a stiffening position. tion, in which the strut assembly 18 stiffening between the mast 8 and the chassis 4 extends, and egg ner rest position is movable, in which the Strebenanord tion 18 is arranged to move the lifting slide 10 in the lower starting position outside the stroke of the lifting slide 10.
- the strut arrangement 18 is arranged in the region of the mast base of the mast 8.
- the strut arrangement 18 is moved into its rest position in which it is arranged outside the stroke path of the lifting carriage 10.
- Fig. 5 shows the strut assembly 18 in its Oxfordpo position in which the lifting carriage 10 moves along the mast 8 in its lowest possible vertical position who can, which corresponds to the lower starting position.
- a positioning drive which in this embodiment by a control device 12 by the Steue controllable hydraulic cylinder 20 (see Fig. 3, Fig. 4, Fig. 6 and 7A to IC) is formed.
- the control device 12 is designed to control the hydraulic cylinder 20 and programmed programs that the hydraulic cylinder 20 moves the strut assembly 18 in the rest position when the lifting 10 in a movement in the direction of the lower approach position of the located in the stiffening position strut assembly 18 approaches.
- a switch 22 may be arranged, which is actuated by the lifting slide 10.
- Fig. 6 shows the strut assembly 18 in a side view in its stiffening position.
- Fig. 7A shows a section in the region of Strebenan Regulation 18 in the stiffening position.
- the Strebenanord tion 18 has a first strut member 24 and a second strut member 26 which are formed and connected by means of a horizontal hinge axis 28 hinged together that they in the stiffening a straight, stiffening between the mast 8 and the chassis 4 extending strut form and in the Oxfordpo position in the illustrated embodiment are arranged at right angles to each other.
- the first strut member 24 is pivotally connected at its end remote from the hinge 28 at a pivot point 30 to the mast 8.
- the second strut part 26 is guided with its end facing away from the hinge axis 28 linearly displaceable on the chassis 4, such that in the rest position (see Fig. IC), the first strut part 24th parallel to the mast 8 extending to the mast 8 is applied and the second strut member 26 is attached to the chassis 4 is and perpendicular to the first strut member 24 is arranged.
- a lug 32 (see Fig. 7A) is connected to the first strut part 24 remote from the steering axis 28 and the pivot point 30, to which the free end of the piston rod 34 of the hydraulic cylinder 20 is connected in an articulated manner.
- Fig. 7A form the Strebent hurry 24, 26 in the stiffening position a straight, stiffening between the mast 8 and the chassis 4 he stretching strut, which has exceptionally high rigidity in its longitudinal direction.
- the existing of the mast 8 and the chassis 4 system has a high rigidity, so that vibrations are reliably avoided.
- the assembly formed by the means of the hinge axis 28 interconnected strut members 24, 26 arrangement be found in the stiffening position of the strut members 24, 26 in its dead center, so that even with occurring loads acting in the longitudinal direction of the strut members 24, 26 prevents in that the strut parts 24, 26 move in the direction of the rest position.
- this dead center can be easily overcome by a force acting transversely to the longitudinal direction of the strut parts 24, 26 be so that the force required to move the strut assembly 18 is relatively small and accordingly accordingly the hydraulic cylinder 20 can be dimensioned accordingly low di.
- a pressure relief valve is arranged in the illustrated embodiment. If, for example, due to a disturbance, the strut assembly 10 is not automatically moved 10 in its our starting position at a movement of the Hubschlit least in its rest position, the Hubschlit ten 10 moves against the strut assembly 18 and presses the same in its further downward movement in its rest position. This opens the pressure relief valve, so that damage to the strut assembly 18 and the hydraulic cylinder 20 are reliably avoided.
- the control device 12 is set up to control the lifting drive 16 of the lifting carriage 10 and programmed so that when lifting in the stiffening position strut assembly 18 of the lifting with egg ner higher lifting speed and at befind Anlagen in the Oxfordpositi strut assembly 18 moves with a lower lifting speed. Accordingly, therefore, the storage and retrieval device 2 is operated speed with a higher Positionierge when the strut assembly 18 ih re stiffening function performs. In contrast, the storage and retrieval device 2 is operated at a lower speed Positionierge when the strut assembly 18 is in its rest position to approach the lower approach position of the lifting carriage 10. This cleverly optimizes the positioning speed, taking into account the constraint that be avoided.
- Fig. 7C shows the strut assembly 18 in its rest position and Fig. 7B in an intermediate position.
- Fig. 8 shows a perspective view of a single unit in the chassis 4, the rail during operation of the storage and retrieval device 2 on the floor running drive 6 guided lower chassis 36 with a along the running rail 6 translationally movable lower drive wheel 38 and an im Upper area of the mast 4 is arranged, when operating the storage and retrieval device 2 guided on an upper guide rail upper chassis 40 with a along the upper guide rail translationally movable upper drive wheel 42 (see Fig. 13) has.
- the drive torque of the traction drive 14 is transmitted to the lower drive wheel 38 and from the same by means of a drive train, which is explained in more detail below, on the upper drive wheel 42.
- a controllable by the control device 12 speed superposition gear 44 is arranged in the drive train between the lower drive wheel 38 and the upper drive wheel 42.
- the operating principle of a Drehiereschreiblagungsge gear is based on the principle of a planetary gear, but with the difference that the outer ring of the planet gear not fixed to the main body of the planetary gear connected, but by means of a rotatable by a rotary drive worm shaft is rotatable, so that Depending on the direction of rotation of the outer ring, the output speed can be positively or negatively influenced. This can be adjusted within certain design limits from the operating speed deviating from the drive speed is.
- Fig. 9A and Fig. 9B show a corresponding rotation number superposition gear 44 in highly schematic sections.
- the speed superposition gear 44 has ei ne input shaft (sun gear) 46 and planet gears 48.
- An outer ring (overlay ring) 50 is rotatably supported relative to a base body 52 and formed as a worm wheel, which is in a handle (for example by means of a servo drive) rotatably driven screw 54 in a handle.
- the output shaft of the speed superposition gear 44 is designated in Fig. 9A and Fig. 9B with the reference numeral 56.
- the output shaft 58 forms the input shaft for a bevel gear 60, which serves to divert the drive torque of the traction drive 14 by 90 ° and to initiate the downstream speed superposition gear 44.
- Fig. 10 shows the speed superposition gear 44 with flanged bevel gear 60.
- the output shaft 56 of the speed transmission 44 can be seen.
- the worm 54 is rotatably mounted in a sub-housing 62 of the speed superposition gear 44 and by means of a servo motor 64, the control device 12 is driven by the Steue, rotatably driven.
- Fig. 11 and Fig. 12 show in a perspective view In the drive train between the lower drive wheel 38 and the upper drive wheel 42 to 42 is a cardan shaft assembly angeord net, on the one hand to the output shaft 56 of the speed-multiplier 44 (see FIG .. 11 and Fig. 12) and on the other hand with the upper drive wheel 42 (see Fig. 13) is connected.
- the storage and retrieval unit 2 has sensor means 68, the rule for detecting a translational path difference between the lower drive wheel 38 and in the upper drive wheel 42 in a movement of the storage and retrieval device 2 are formed with the control device in signal transmission connection for the transmission of a path difference signal the control device 12, wherein the control device 12 for controlling the Servomo sector 64 of the speed superposition gear out forms and is programmed so that the speed override ment gear 44 is driven in accordance with a detected Wegdif difference to compensate for the path difference.
- the Sen sorstoff 2 displacement sensors 70, 72 of which the displacement sensor 70 is associated with the lower drive wheel 38 and the displacement sensor 72 to the upper drive wheel 42.
- Occurring slip can cause between the distance covered by the lower drive wheel 38 and the path traveled by the upper drive wheel 42, a path difference occurs that leads without further action to egg ner inclination of the mast 8, occur in undesirable manner by the vibrations can affect the operation of the stacker crane 2.
- a corresponding path difference is obtained by comparing the output signals of the displacement sensors 70,
- the control device 12 controls the servomotor 64 of the speed-limiting transmission 44 in such a way that the drive speed of the upper drive wheel 42 is adjusted corresponding to the detected path difference for a short time deviating from the drive speed of the lower drive wheel 38 so that the path difference is compensated.
- the drive speed of the upper drive wheel 42 is briefly increased by means of the speed superposition gear 44 until the lower drive wheel 38 and the upper drive wheel 42 move synchronously again.
- the storage and retrieval unit 2 according to the invention can be operated with high positioning speeds, which increases the storage capacity of a storage rack provided with a storage and retrieval unit according to the invention.
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)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018109854 | 2018-04-24 | ||
DE102018122952.6A DE102018122952A1 (de) | 2018-04-24 | 2018-09-19 | Regalbediengerät |
PCT/EP2019/059913 WO2019206761A1 (fr) | 2018-04-24 | 2019-04-17 | Transstockeur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3784617A1 true EP3784617A1 (fr) | 2021-03-03 |
Family
ID=68104986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19718358.5A Withdrawn EP3784617A1 (fr) | 2018-04-24 | 2019-04-17 | Transstockeur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3784617A1 (fr) |
DE (1) | DE102018122952A1 (fr) |
WO (1) | WO2019206761A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115771697A (zh) * | 2021-05-14 | 2023-03-10 | 芜湖万向新元智能科技有限公司 | 一种自动化仓储用堆垛机的操作方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU573070B2 (en) * | 1985-03-01 | 1988-05-26 | Bridge & Plate Constructions Pty. Ltd. | Track guided transportation system |
ES2351003B1 (es) * | 2010-06-29 | 2011-08-12 | Mecalux, S.A. | Transelevador para la manipulación de paletas, dispositivo de extracción de paletas y sistema de almacenamiento de mercancías. |
DE202013105616U1 (de) * | 2013-12-10 | 2014-02-14 | Stöcklin Logistik Ag | Kleinteilegerät |
-
2018
- 2018-09-19 DE DE102018122952.6A patent/DE102018122952A1/de not_active Ceased
-
2019
- 2019-04-17 WO PCT/EP2019/059913 patent/WO2019206761A1/fr unknown
- 2019-04-17 EP EP19718358.5A patent/EP3784617A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2019206761A1 (fr) | 2019-10-31 |
DE102018122952A1 (de) | 2019-10-24 |
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