EP3147255B1 - Exchange device for traction battery of an industrial truck - Google Patents
Exchange device for traction battery of an industrial truck Download PDFInfo
- Publication number
- EP3147255B1 EP3147255B1 EP16186752.8A EP16186752A EP3147255B1 EP 3147255 B1 EP3147255 B1 EP 3147255B1 EP 16186752 A EP16186752 A EP 16186752A EP 3147255 B1 EP3147255 B1 EP 3147255B1
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- EP
- European Patent Office
- Prior art keywords
- exchange device
- rollers
- battery
- wheel arm
- traction battery
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- 238000005096 rolling process Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009420 retrofitting Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- 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
- B66F9/075—Constructional features or details
- B66F9/07513—Details concerning the chassis
- B66F9/0754—Battery removal arrangements
Definitions
- the invention relates to a replacement device for a traction battery of a truck.
- the invention relates to a replacement device for a traction battery of a battery electric forklift truck with a receiving surface on which a traction battery can be set, the changeover device can be used together with the traction battery in a battery compartment of the truck and the changing device has rollers that by lifting means under the receiving surface can be lowered and by the traction battery can be raised together with the changing device so far that the changing device can be moved out of the battery compartment on a road surface rolling out.
- Battery-powered trucks have traction batteries for power supply, some of which have a considerable weight.
- the traction battery is placed in a battery compartment and, once unloaded, can be replaced with a supercharged traction battery.
- the traction batteries In reach trucks, but especially in counterbalanced forklifts, the traction batteries have a significant weight, which may be in the range above a ton.
- a disadvantage of this prior art is that a complete second truck must be kept. Another disadvantage is that this pallet truck must be handled separately from the truck and a traction battery in the operation. The pallet truck must be parked in a stop position and is needed only for the brief moment of removal of the battery. This is ultimately an unfavorable operation, since when a battery change then the pallet truck must be specially brought and in the case of a general other use in the operation may not be available.
- the battery drawer are usually mounted vehicle-mounted and can be designed, for example, as a full automatic drawer so that the traction battery is moved on a platform completely laterally out of the vehicle.
- hydraulic and electric drives are known, which are either fixed to the vehicle or mounted on the extension itself to move the platform.
- the battery tray is designed so that powered rollers effect the ejection movement.
- Known embodiments have roller conveyors, telescopic sliding guides and, for example, hydraulic cylinders for the drive.
- An industrial truck with a battery drawer, which is supported by a footprint guided on the truck for the truck Battery block is formed out of the EP 1 661 847 A1 known.
- an industrial truck with a removable side traction battery on a changing device in which the changing device has a for lowering the power supply unit from a raised position on a road surface lowerable stand element.
- the stand element may consist of two parallel to a removal direction spaced apart rollers.
- a hydraulic lifting device for the stand element are also provided and the device can be moved separately from the truck.
- a disadvantage of this prior art is that it is a complex special construction, with the corresponding costs. Also, the stability when moving the traction battery is not very high, since the rollers only a certain amount Width may have.
- a generic exchange device for a traction battery is known in which the footprint for the traction battery is formed by a support plate which can be raised by means of a scissor lift mechanism. On the struts of the scissor lift rollers are arranged, with which the changing device stands up on the road surface.
- the CN 103 192 804 A discloses a battery change trolley with height adjustable in vertical telescopic support feet arranged rollers with which the battery change car stands up on the road surface.
- the WO 03/068659 A1 discloses a pallet truck for transporting palletized loads.
- the pallet truck is provided with rollers which are arranged in Radarmen means of a hydraulic cylinder liftable and lowerable
- the JP H11 21095 A discloses an industrial truck, with which a load between two angular support plates is arranged and is supported by these, which are mutually adjustable in the distance.
- the support plates are height adjustable relative to a chassis, which is formed by longitudinal members with rollers.
- FR 2 989 522 A1 is a mobile changing device for a traction battery of a battery-powered electric vehicle known, with a traction battery can be installed and removed in a downwardly open battery compartment of the vehicle.
- the present invention is therefore based on the object to provide a replacement device for a traction battery of a truck available, which avoids the aforementioned disadvantages and provided with a cost-effective, as far as possible usable change device available becomes.
- the changing device in a changing device for a traction battery of a battery-powered truck with a receiving surface on which a traction battery can be set, the changing device can be used together with the traction battery in a battery compartment of the truck and the changing device has roles which can be lowered by lifting means under the receiving surface and by which the traction battery can be raised together with the changing device so far that the changing device can be moved out of the battery compartment on a road surface rolling out, at least one role as Radarmrolle on each side of a Center axis of the changing device and at least one other role on the underside of the changing device are arranged, and that the Radarmrollen each in an at least partially U-shaped longitudinal profile as part a frame are mounted, which forms the bearing surface, and in each case laterally outside of the longitudinal profile a support surface is arranged, with which the changing device can stand up in the battery compartment.
- the Radarmrollen are each mounted in an at least partially U-shaped longitudinal profile as part of a frame which forms the support surface.
- These profiles may be arranged with the open side down or may be closed in the bulk box sections that are open only in the area of the Radarmrollen and possibly other components or roles down.
- the changing device can be designed so that the longitudinal profiles are located in the central region of the downwardly open floor opening in the truck when inserted into the battery compartment and thus optimally the space exploit.
- the longitudinal profiles result in a high load capacity and rigidity.
- Such a support surface can be limited to a correspondingly large-sized sheet and results in only a small additional height when a traction battery gets up on the changing device and is placed together with this on the laterally existing areas of a floor panel or support elements in the battery compartment.
- the changing device according to the invention can be used in industrial trucks, which have a battery compartment, which has an opening in the bottom area over which a traction battery with a conventional pallet truck, be it a Handgabelhubwagen or a battery electric powered pallet truck, raised and removed.
- the changing device is oriented in its geometric dimensions, in particular in the arrangement of the Radarmrollen and the at least one further or more other roles on the dimensions of a fork lift truck.
- the Radarmrollen are arranged substantially to each other at a distance as the forks of a pallet truck. This makes it possible to insert the changing device together with the traction battery in the battery compartment and lift by lowering the rollers and drive out of the battery compartment or insert in reverse order in the battery compartment.
- the changeover device can thus be retrofitted without retrofitting in industrial trucks, which are provided for a change of the traction battery with a pallet truck.
- industrial trucks which are provided for a change of the traction battery with a pallet truck.
- no separate support of the truck or vehicle is necessary and the changing device can be used regardless of a tire wear, since the lifting of the bottom of the battery compartment or the support areas in the bottom region of the battery compartment, by lifting against the road surface. It can be used for the construction of the changing device on a large scale parts and components of pallet trucks. This results in a cost-effective design that over a wide range of uses up to very high vehicle weights and weights of the traction battery can be used, especially since the known technology from the field of pallet trucks is robust and sustainable.
- the Radarmrollen can each be mounted at one end of a Radarmhebels, which is mounted in a fulcrum in the longitudinal profile with the other end, wherein by a rotation of the Radarmhebels the Radarmrollen be moved down.
- the Radarmhebel can be moved by a arranged in the longitudinal profile and connected to the lifting means push or pull rod.
- This construction and storage of Radarmrollen or roles corresponds to the usual structure in pallet trucks.
- a roller is arranged at one end of the Radarmhebels or it can also be arranged on an oscillating wheel carrier one end of the Radarmhebels more roles.
- the Radarmhebel is in a raised position in a position which is almost horizontal, and is by a either above its storage point in the longitudinal profile engaging push rod by a pushing movement, or by a tie rod which is disposed below the storage point in the direction of the lifting means swung down to lower the Radarmrolle.
- the lifting means can be integrated in the longitudinal profile.
- Conventional arms or forks of pallet trucks have a mechanism in which mostly via a linkage of a hydraulic cylinder, a movement is transmitted to rollers at the top of the Radarms.
- the lifting means can be integrated instead of the linkage in the wheel arm, or lifting means can act on a shortened pressure or pull rod.
- the lifting means are considered in the longitudinal direction behind the arranged in the longitudinal profile front Radarmrollen.
- two further rollers are present, one of which is arranged in each case one on each side of the central axis in the longitudinal profile.
- the changing device can be designed so that next to the front arranged Radarmrollen each in the longitudinal profile further back an identical role is arranged again. This results in a simple and robust construction, which is at the same time space-saving and is very inexpensive due to identical parts with components of pallet trucks.
- the other rollers may be mounted at one end of a Radarmhebels, which is mounted in a fulcrum in the longitudinal profile with the other end, wherein by a rotation of the Radarmhebels the other rollers are moved downward.
- the Radarmhebel the other rollers can be moved by a arranged in the longitudinal profile and connected to the lifting means push or pull rod.
- the lifting means between the pivot points of the Radarmhebel the Radarmrollen as well as the Radarmhebel the other roles are arranged in the longitudinal profile and connected to the pressure or tension rods of Radarmhebel the Radarmrollen as well as the Radarmhebel the other roles.
- the Radarmhebel each have to the side of the lifting means its pivot point in the longitudinal profile and in the raised position the Radarmrollen or other roles are on the side facing away from the lifting means opposite the fulcrum.
- the longitudinal profile corresponds together with the Radarmrolle at least a front portion of a Radarms a Gabelhubwagens.
- the longitudinal profiles including the wheeled pulleys and any lever mechanisms, may be identical or in part identical to the initial lift forks of pallet trucks. This results in considerable cost advantages and proven and robust components can be used.
- the arms can be including the tapered tip area largely identical taken and integrated into the changing device.
- a bearing surface can be formed by the forks of the technology of forklift trucks used to support the traction battery in the changing device by connecting elements.
- the distance of the outer sides of the longitudinal profiles corresponds to the distance of the outer sides of the forks of pallet trucks, which are adapted for standard pallets, in particular this does not exceed a value of 550 mm corresponding to a value for Euro pallets.
- the battery compartments of many industrial trucks are provided with openings in the floor area, so that pallet trucks allow a lifting of the traction battery in the battery compartment, which are designed on standard pallets.
- These are especially europallets, with a width across the outside of the two forks measured between 510 to 540 mm, sometimes 550 mm is common.
- the longitudinal profiles can be arranged in this area.
- the lifting means may be formed of hydraulic cylinders.
- Radarmrollen and / or other roles are designed as tandem rollers.
- Tandem rollers which are often used on pallet trucks, offer the advantage of being able to withstand higher loads and being unaffected by uneven floors.
- the other role may consist of a steerable role.
- the overall structure of the changing device may provide that only a single third roller, such as the pallet truck arranged in the central axis, is provided.
- the further role is directed by a hand drawbar.
- the single further role can be controlled by an electric steering device.
- an embodiment with a hand drawbar is conceivable, which is particularly inexpensive and easy. It can also be provided that a "pumping up" takes place via a movement of the hand drawbar, which can generate a hydraulic pressure via a pumping device, and the rollers are lowered to the ground via hydraulic cylinders.
- the other role can be driven by an electric motor.
- At least one of the rollers can be driven, in particular by an electric motor.
- an assembly section is arranged laterally of the receiving surface, in particular in the longitudinal direction in front of or behind the receiving surface.
- a battery connector for connection to the traction battery may be arranged on the changing device, can be powered by the electrical units of the changing device with power.
- a battery connector of a battery connector connection can be solved by the truck and connected to the changing device.
- the changing device does not require its own power supply and can be electrically driven, in particular, the very heavy weights of large traction battery can be raised quickly and conveniently, for example by a hydraulic unit in conjunction with hydraulic cylinders.
- the changing device with a drive device, in particular to drive one or more rollers via electric motors, so that the traction battery can be independently transported and moved outside of the truck via this.
- the truck then de-energized and represents no danger and there is no electric cable between the truck and the moving traction battery tensioned or there may be no damage to the battery connector to the vehicle if it is not solved in time.
- the battery connector connection is arranged below the receiving surface.
- Aggregates and / or the lifting means can be controlled by a remote control, which is wirelessly or via a cable, in particular a spiral cable, connected to the changing device.
- Such a Ausschubvorraum can also be provided independently of the features that a Radarmrolle on each side of a central axis of the changing device and another role on the underside of the changing device is present.
- an ejection device can be provided on each changing device according to the preamble of patent claim 1.
- the Ausschubvortechnisch may be a hydraulic cylinder.
- a multi-extending telescopic cylinder, or a combination of two oppositely oriented and connected to their cylinders hydraulic cylinders is also possible here to allow a complete ejection from the battery compartment.
- the hydraulic cylinder is arranged in a central axis of the changing device.
- It may be a connection to the truck over an angular range movable, in particular be designed as a ball joint.
- the object is also achieved by a system comprising a truck with a battery compartment and a changing device, as described above, wherein the battery compartment has an opening at its bottom side, so that a traction battery located in the battery compartment can be removed with a pallet truck.
- the truck on a ball joint as a connection to the hydraulic cylinder of the changing device.
- rollers or wheels it is also conceivable instead of rollers or wheels to provide a chain drive or caterpillar drive in the changing device, which can be lowered, for example, and on which the changing device can be moved out of the battery compartment.
- the Fig. 1 schematically shows an industrial truck 1 in the form of a counterbalance forklift 2 with a lifting mast 3, are guided vertically movable on the forks 4 as load handling device 5 with a traction battery 6 in supervision.
- the traction battery 6 is pushed laterally out of a battery compartment, not shown.
- the Fig. 2 shows the traction battery 6 of Fig. 1 on a changing device 7 according to the invention in a battery compartment 8.
- the traction battery 6 is placed on a receiving surface 9 and in the longitudinal direction behind the receiving surface 9, an aggregate section 10 is provided on the changing device 7.
- Radarmrollen 11 in the form of tandem rollers 12 are lifted by lifting means, so that in the battery compartment, the Radarmrollen 11 free from a road surface 13 and the changing device 7 rests on bottom plate portions 14 of the battery compartment 8.
- further rollers 15 are provided, also in the form of tandem rollers 12th
- the Fig. 3 shows the traction battery 6 of Fig. 1 on the changing device 7 according to the invention in the battery compartment 8 with the receiving surface 9 and the unit section 10 and the Radarmrollen 11 and the other rollers 15, each in the form of tandem rollers 12.
- the changing device 7 is lifted from the bottom plate portions 14 of the battery compartment 8 and can be rolled out of the battery compartment 8, the changing device 7 also.
- the Fig. 4 shows the ejection process in the level I in the Fig. 1 ,
- the traction battery 6 on the receiving surface 9 of the changing device 7 is moved from a position in the battery compartment 8, as illustrated by the contour illustration and the arrow, by a Ausschubvorraum 16 of the changing device 7 on the tandem rollers 12 on the road surface 13 rolling out.
- the Ausschubvorraum 16 consists of a hydraulic cylinder 17 with a piston rod 18 which is connected in an angular range movable via a ball joint 19 to the truck.
- the Fig. 5 shows the changing device 7 according to the invention in a perspective view of the receiving surface 9 and the aggregate portion 10.
- the receiving surface 9 is formed by two wheel arms 20, as they are also used in pallet trucks and correspond to those in wide areas.
- the wheel arms 20 consist of a downwardly at least partially open U-shaped longitudinal profile 21 and take next to the Radarmrollen 11 in the form of tandem rollers 12 and the other rollers 15 as tandem rollers 12.
- a hydraulic cylinder 22 is arranged as a lifting means 23 in the longitudinal profiles 21.
- the Ausschubvoretti devis 16 is arranged in the form of two hydraulic cylinders 17.
- bearing surfaces 24 are arranged, which rest upon insertion into the battery compartment 8 on the bottom plate portions 14 of the truck 1.
- Lateral plates 25 fix the traction battery 6 against slipping.
- the changing device 7 can be used in industrial trucks 1 and with the Traction battery are parked together on the support surfaces 24 in the battery compartment 8, which are provided by an opening in the bottom region of the battery compartment 8 for lifting the traction battery 6 by a pallet truck. Retrofitting is particularly advantageous and possible when using a slightly smaller traction battery 6 no change to the truck 1, except possibly the provision of a mounting position for the Ausschubvorraum 16th
- the Fig. 6 shows the changing device 7 of Fig. 5 with the extended Ausschubvorraum 16, which consists of two hydraulic cylinders 17.
- the hydraulic cylinders 17 are connected and their piston rods 18 extend in the opposite direction.
- the Ausschubvortechnisch 16 can be connected to the truck 1, and the traction battery 6 are moved out of the battery compartment 8 by the Ausschub Gay on the tandem rollers 12 or pulled into this.
- the combination of two hydraulic cylinders 17 allows a sufficiently large push movement to move the changing device 7 completely out of the battery compartment 8 out.
- the tandem rollers 12 are mounted on the Radarmhebeln 30, wherein the hydraulic cylinder 22 is arranged as a lifting means 23 between the Radarmhebel 30 of the Radarmrollen 11 and the Radarmhebel 30 of the other rollers 15.
- the Radarmhebel 30 are connected to the hydraulic cylinder 22.
- the Radarmhebel 30 are oriented with their pivot point in which they are articulated in the longitudinal profile 21, respectively to the hydraulic cylinder 22 out.
- the Fig. 7 shows the changing device 7 of Fig. 5 with the traction battery 6.
- the aggregate section 10 In front of the traction battery 6, which rests on the non-seeing support surface, there is the aggregate section 10.
- the tandem rollers 12 are lowered by the lifting means and in the illustration, the piston rods 18 of the hydraulic cylinder 17 are fully extended.
- the Fig. 8 shows the changing device 7 with the traction battery 6 in side view.
- the Radarmrollen 11 as tandem rollers 12th and the other rollers 15 are lowered or raised as tandem rollers 12 by the hydraulic cylinder 22 as a lifting means 23.
- a hydraulic pump driven by an electric motor can be provided in the unit section 10 of the changing device 7.
- a battery connector 27 is provided on the changing device 7, with which a battery connecting cable 28 of the traction battery 6 can be connected.
- the changing device 7 can be supplied with electrical energy by its electrical units, for example the hydraulic unit 29 and / or a drive motor and / or other components.
- electrical energy for example the hydraulic unit 29 and / or a drive motor and / or other components.
- no separate battery must be present and it can not happen that the battery connection cable 28 is loaded when removing the traction battery 6 from the battery compartment 8 unduly mechanically by train.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
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- Civil Engineering (AREA)
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- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
Die Erfindung betrifft eine Wechselvorrichtung für eine Traktionsbatterie eines Flurförderzeugs. Insbesondere betrifft die Erfindung eine Wechselvorrichtung für eine Traktionsbatterie eines batterieelektrisch betriebenen Flurförderzeugs mit einer Aufnahmefläche, auf die eine Traktionsbatterie gesetzt werden kann, wobei die Wechselvorrichtung zusammen mit der Traktionsbatterie in ein Batteriefach des Flurförderzeug eingesetzt werden kann und die Wechselvorrichtung Rollen aufweist, die durch Hubmittel unter der Aufnahmefläche abgesenkt werden können und durch die die Traktionsbatterie zusammen mit der Wechselvorrichtung so weit angehoben werden kann, dass die Wechselvorrichtung aus dem Batteriefach auf einer Fahrbahnoberfläche rollend heraus bewegt werden kann.The invention relates to a replacement device for a traction battery of a truck. In particular, the invention relates to a replacement device for a traction battery of a battery electric forklift truck with a receiving surface on which a traction battery can be set, the changeover device can be used together with the traction battery in a battery compartment of the truck and the changing device has rollers that by lifting means under the receiving surface can be lowered and by the traction battery can be raised together with the changing device so far that the changing device can be moved out of the battery compartment on a road surface rolling out.
Batterieelektrisch angetriebene Flurförderzeuge haben zur Energieversorgung Traktionsbatterien, die zum Teil ein erhebliches Gewicht aufweisen. Um die Flurförderzeuge im Mehrschichtbetrieb einsetzen zu können, wird die Traktionsbatterie in einem Batteriefach angeordnet und kann, sobald sie entladen ist, gegen eine aufgeladene Traktionsbatterie ausgetauscht werden. Bei Schubmaststaplern, vor allem aber bei Gegengewichtsgabelstaplern, weisen die Traktionsbatterien ein erhebliches Gewicht auf, das in dem Bereich oberhalb einer Tonne liegen kann.Battery-powered trucks have traction batteries for power supply, some of which have a considerable weight. To use the trucks in multi-shift operation, the traction battery is placed in a battery compartment and, once unloaded, can be replaced with a supercharged traction battery. In reach trucks, but especially in counterbalanced forklifts, the traction batteries have a significant weight, which may be in the range above a ton.
Im Stand der Technik sind daher umfangreich Verfahren und Vorrichtung bekannt, um Traktionsbatterien austauschen zu können. Bei den ursprünglich und bereits seit langem eingesetzten Verfahren zum Tausch wird ein Fahrersitz oberhalb des Batteriefaches weggeklappt und die Traktionsbatterie mithilfe eines Krans nach oben entnommen. Da jedoch bei Flurförderzeugen bereits seit längerer Zeit ein Fahrerschutzdach vorgeschrieben und üblich ist, um Verletzungen des Fahrers durch herabfallende Lasten zu verhindern, ist dieses ein Hindernis bei dieser Art des Wechsels der Traktionsbatterie, es muss beispielsweise eine Möglichkeit zum Wegklappen des Fahrschutzdaches vorgesehen werden, und muss im Übrigen stets eine zusätzliche Vorrichtung in Form eines Krans zur Verfügung stehen.The prior art therefore comprehensively discloses methods and apparatus for exchanging traction batteries. In the original and long-used exchange procedure, a driver's seat is folded away above the battery compartment and the traction battery is lifted upwards with the help of a crane. However, since for industrial trucks has long been a rider's roof prescribed and customary to prevent injury to the driver by falling loads, this is an obstacle in this type of change of traction battery, it must be provided, for example, a way to fold away the driving roof, and Moreover, an additional device in the form of a crane must always be available.
In sehr weiten Umfang sind daher inzwischen Verfahren üblich, die einen seitlichen Batterietausch ermöglichen, bei dem das Batteriefach in dem Flurförderzeug über eine seitliche Türöffnung zugänglich ist.To a very great extent, methods are now common practice that allow a lateral battery replacement, in which the battery compartment in the truck is accessible via a side door opening.
Ein verbreitetes und bereits seit längerer Zeit im Stand der Technik bekanntes Verfahren für eine seitliche Batterieentnahme ist dabei, dass das Batteriefach nach unten zumindest insoweit Öffnungen aufweist, dass mit einem Gabelhubwagen die Batterie innerhalb des Batteriefachs angehoben und mit dem Gabelhubwagen aus dem Batteriefach herausgefahren werden kann. Ein derartiges Verfahren ist aus der
Nachteilig an diesem Stand der Technik ist, dass ein vollständiges zweites Flurförderzeug vorgehalten werden muss. Weiterhin ist nachteilig, dass dieser Gabelhubwagen getrennt von dem Flurförderzeug und auch einer Traktionsbatterie im Betriebsablauf gehandhabt werden muss. Der Gabelhubwagen muss in einer Halteposition abgestellt werden und wird nur für den kurzen Moment der Entnahme der Batterie benötigt. Dies ist letztlich ein ungünstiger Betriebsablauf, da bei einem Batteriewechsel dann der Gabelhubwagen speziell geholt werden muss und im Falle einer generellen sonstigen Nutzung im Betrieb eventuell gerade nicht zur Verfügung steht.A disadvantage of this prior art is that a complete second truck must be kept. Another disadvantage is that this pallet truck must be handled separately from the truck and a traction battery in the operation. The pallet truck must be parked in a stop position and is needed only for the brief moment of removal of the battery. This is ultimately an unfavorable operation, since when a battery change then the pallet truck must be specially brought and in the case of a general other use in the operation may not be available.
Es sind auch Batterieausschübe bekannt, mit denen die Traktionsbatterie aus der Position in dem Batteriefach in eine Position neben dem Flurförderzeug verbracht werden kann, um die Traktionsbatterie dort mit einem Kran oder durch ein weiteres Flurförderzeug aufzunehmen. Die Batterieausschübe sind zumeist fahrzeugfest angebracht und können beispielsweise als automatischer Vollausschub so ausgeführt sein, dass die Traktionsbatterie auf einer Plattform vollständig seitlich aus dem Fahrzeug heraus bewegt wird. Hierfür sind hydraulische und elektrische Antriebe bekannt, die entweder fahrzeugfest oder an dem Ausschub selbst montiert sind, um die Plattform zu bewegen. Es ist ebenfalls bekannt, dass der Batterieausschub so ausgeführt ist, das angetriebene Rollen die Ausschubbewegung bewirken. Bekannte Ausführungsformen weisen Rollenbahnen auf, Teleskopgleitführungen und für den Antrieb beispielsweise Hydraulikzylinder. Ein Flurförderzeug mit einem Batterieausschub, der von einer am Flurförderzeug geführten Aufstandsfläche für den Batterieblock gebildet ist, ist aus der
Dabei ist es meistens notwendig, das Flurförderzeug und/oder die Ausschubvorrichtung abzustützen, um ein Kippen zu verhindern. Diese Abstützung erfolgt beispielsweise durch über den Untergrund mitlaufende Rollen oder durch einen Standfuß, der zuvor ausgeklappt wird.It is usually necessary to support the truck and / or the Ausschubvorrichtung to prevent tilting. This support is carried out, for example, by rollers running over the ground or by a base which is previously unfolded.
Dieser bekannte Stand der Technik weist eine Reihe von Nachteilen auf. So erfordern Ausschubvorrichtungen, die fahrzeugfest angeordnet sind, oft aufwändige Änderungen am Fahrzeug, wie Anpassungen eines Rahmens und/oder einer Tür des Batteriefachs. Deshalb sind Batterieausschübe nur mit großem Aufwand oder gar nicht nachrüstbar. Durch die Batterieausschübe wird auch zum Teil die Bodenfreiheit des Flurförderzeugs stark eingeschränkt und im Falle, dass angetriebene Rollen für das Befördern der Traktionsbatterie bzw. einer Plattform für die Traktionsbatterie eingesetzt werden, erfordert dies verhältnismäßig viel Bauraum. Erforderliche Abstützungen weisen oft eine aufwändige Technik auf und müssen in der Regel einstellbar sein, um auf Reifenverschleiß bzw. Bodengegebenheiten reagieren zu können. Überdies kann es vorkommen, dass Systeme zur Abstützung nicht bis zum maximal möglichen Reifenverschleiß eingesetzt werden können. Dies bedeutet, dass Reifen der Flurförderzeuge, beispielsweise Elastikreifen mit ihrem sehr weiten Verschleißbereich, nicht bis zur Verschleißgrenze abgefahren werden können oder der Batterieausschub bei abgenutzten Reifen nicht mehr verwendbar ist.This known prior art has a number of disadvantages. Thus, extension devices that are fixed to the vehicle often require extensive modifications to the vehicle, such as adjustments of a frame and / or a door of the battery compartment. Therefore, battery drawer are only with great effort or not retrofitted. The battery drawer also greatly limits the ground clearance of the truck and, in the event that powered rollers are used to carry the traction battery or a platform for the traction battery, this requires a relatively large amount of space. Required supports often have a complex technology and must be adjustable in order to be able to react to tire wear or ground conditions. Moreover, it can happen that systems for support can not be used up to the maximum possible tire wear. This means that tires of industrial trucks, such as elastic tires with their very wide wear range, can not be driven to the wear limit or the battery tray is no longer usable with worn tires.
Aus der
Nachteilig an diesem Stand der Technik ist, dass es sich um eine aufwändige Sonderkonstruktion handelt, mit den entsprechenden Kosten. Auch ist die Stabilität beim Bewegen der Traktionsbatterie nicht sehr hoch, da die Rollen nur eine gewisse Breite aufweisen können.A disadvantage of this prior art is that it is a complex special construction, with the corresponding costs. Also, the stability when moving the traction battery is not very high, since the rollers only a certain amount Width may have.
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Der vorliegenden Erfindung liegt die daher die Aufgabe zugrunde, eine Wechselvorrichtung für eine Traktionsbatterie eines Flurförderzeugs zur Verfügung zu stellen, die die zuvor genannten Nachteile vermeidet und mit der eine kostengünstige, möglichst in weiten Umfang einsetzbare Wechselvorrichtung zur Verfügung gestellt wird.The present invention is therefore based on the object to provide a replacement device for a traction battery of a truck available, which avoids the aforementioned disadvantages and provided with a cost-effective, as far as possible usable change device available becomes.
Diese Aufgabe wird durch eine Wechselvorrichtung für eine Traktionsbatterie eines Flurförderzeugs mit den Merkmalen des unabhängigen Patentanspruchs 1 sowie einem System aus einem Flurförderzeug und einer Wechselvorrichtung nach Anspruch 24 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a replacement device for a traction battery of a truck with the features of independent claim 1 and a system of a truck and a changing device according to
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einer Wechselvorrichtung für eine Traktionsbatterie eines batterieelektrisch betriebenen Flurförderzeugs mit einer Aufnahmefläche, auf die eine Traktionsbatterie gesetzt werden kann, wobei die Wechselvorrichtung zusammen mit der Traktionsbatterie in ein Batteriefach des Flurförderzeug eingesetzt werden kann und die Wechselvorrichtung Rollen aufweist, die durch Hubmittel unter der Aufnahmefläche abgesenkt werden können und durch die die Traktionsbatterie zusammen mit der Wechselvorrichtung so weit angehoben werden kann, dass die Wechselvorrichtung aus dem Batteriefach auf einer Fahrbahnoberfläche rollend heraus bewegt werden kann, mindestens je eine Rolle als Radarmrolle auf jeder Seite einer Mittelachse der Wechselvorrichtung sowie mindestens eine weitere Rolle an der Unterseite der Wechselvorrichtung angeordnet sind, und dass die Radarmrollen jeweils in einem zumindest abschnittsweise U-förmigen Längsprofil als Teil eines Rahmens gelagert sind, der die Auflagefläche bildet, und jeweils seitlich außen zu dem Längsprofil eine Auflagefläche angeordnet ist, mit der die Wechselvorrichtung in dem Batteriefach aufstehen kann.The object is achieved in that in a changing device for a traction battery of a battery-powered truck with a receiving surface on which a traction battery can be set, the changing device can be used together with the traction battery in a battery compartment of the truck and the changing device has roles which can be lowered by lifting means under the receiving surface and by which the traction battery can be raised together with the changing device so far that the changing device can be moved out of the battery compartment on a road surface rolling out, at least one role as Radarmrolle on each side of a Center axis of the changing device and at least one other role on the underside of the changing device are arranged, and that the Radarmrollen each in an at least partially U-shaped longitudinal profile as part a frame are mounted, which forms the bearing surface, and in each case laterally outside of the longitudinal profile a support surface is arranged, with which the changing device can stand up in the battery compartment.
Die Radarmrollen sind jeweils in einem zumindest abschnittsweise U-förmigen Längsprofil als Teil eines Rahmens gelagert, der die Auflagefläche bildet.The Radarmrollen are each mounted in an at least partially U-shaped longitudinal profile as part of a frame which forms the support surface.
Diese Profile können mit der offenen Seite nach unten angeordnet sein bzw. es kann sich um im Großteil geschlossene Kastenprofile handeln, die nur im Bereich der Radarmrollen und eventuell weiterer Komponenten oder Rollen nach unten offen sind. Insbesondere kann die Wechselvorrichtung so ausgeführt sein, dass die Längsprofile in dem mittleren Bereich der nach unten offenen Bodenöffnung in dem Flurförderzeug beim Einsetzen in das Batteriefach sich befinden und somit optimal den Raum ausnützen. Die Längsprofile ergeben dabei eine hohe Tragfähigkeit und Steifigkeit.These profiles may be arranged with the open side down or may be closed in the bulk box sections that are open only in the area of the Radarmrollen and possibly other components or roles down. In particular, the changing device can be designed so that the longitudinal profiles are located in the central region of the downwardly open floor opening in the truck when inserted into the battery compartment and thus optimally the space exploit. The longitudinal profiles result in a high load capacity and rigidity.
Es ist jeweils seitlich außen zu dem Längsprofil eine Auflagefläche angeordnet, mit der die Wechselvorrichtung in dem Batteriefach aufsteht.It is in each case laterally outside the longitudinal profile arranged a support surface with which the changing device stands up in the battery compartment.
Eine solche Auflagefläche kann sich auf ein entsprechend stark dimensioniertes Blech beschränken und ergibt nur eine geringe zusätzliche Aufbauhöhe, wenn eine Traktionsbatterie auf der Wechselvorrichtung aufsteht und zusammen mit dieser auf die seitlich vorhandenen Bereiche eines Bodenblechs oder von Tragelementen in dem Batteriefach aufgesetzt wird.Such a support surface can be limited to a correspondingly large-sized sheet and results in only a small additional height when a traction battery gets up on the changing device and is placed together with this on the laterally existing areas of a floor panel or support elements in the battery compartment.
Vorteilhaft kann die erfindungsgemäße Wechselvorrichtung bei Flurförderzeugen eingesetzt werden, die ein Batteriefach aufweisen, das im Bodenbereich eine Öffnung hat, über die eine Traktionsbatterie mit einem üblichen Gabelhubwagen, sei es ein Handgabelhubwagen oder ein batterieelektrisch angetriebener Gabelhubwagen, angehoben und entnommen werden kann. Dabei ist die Wechselvorrichtung in ihren geometrischen Maßen, insbesondere in der Anordnung der Radarmrollen sowie der mindestens einen weiteren oder mehreren weiteren Rollen an den Maßen eines Gabelhubwagens orientiert. Beispielsweise sind die Radarmrollen im Wesentlichen zueinander in einem Abstand wie die Gabeln eines Gabelhubwagens angeordnet. Dies ermöglicht es, die Wechselvorrichtung zusammen mit der Traktionsbatterie in das Batteriefach einzusetzen und durch Absenken der Rollen anzuheben und aus dem Batteriefach herauszufahren bzw. in umgekehrter Reihenfolge in das Batteriefach einzusetzen. Vorteilhaft lässt sich die Wechselvorrichtung dadurch auch ohne Umrüstung nachträglich bei Flurförderzeugen einsetzen, die für einen Wechsel der Traktionsbatterie mit einem Gabelhubwagen vorgesehen sind. Es ist kein zusätzliches weiteres Flurförderzeug in Form eines Gabelhubwagens erforderlich und die Wechselvorrichtung steht beim Wechsel der Traktionsbatterie auch immer zur Verfügung. Weiterhin ist auch keine separate Abstützung des Flurförderzeugs bzw. Fahrzeugs notwendig und kann die Wechselvorrichtung unabhängig von einem Reifenverschleiß eingesetzt werden, da das Anheben von dem Boden des Batteriefach bzw. den Auflagebereichen im Bodenbereich des Batteriefachs, durch ein Anheben gegenüber der Fahrbahnoberfläche erfolgt. Dabei können für die Konstruktion der Wechselvorrichtung in großem Maß Teile und Komponenten aus Gabelhubwagen eingesetzt werden. Es ergibt sich dadurch eine kostengünstige Konstruktion, die über einen weiten Einsatzbereich bis hin zu sehr hohen Fahrzeuggewichten und Gewichten der Traktionsbatterie eingesetzt werden kann, Insbesondere da die bekannte Technik aus dem Bereich der Gabelhubwagen robust und tragfähig ist.Advantageously, the changing device according to the invention can be used in industrial trucks, which have a battery compartment, which has an opening in the bottom area over which a traction battery with a conventional pallet truck, be it a Handgabelhubwagen or a battery electric powered pallet truck, raised and removed. In this case, the changing device is oriented in its geometric dimensions, in particular in the arrangement of the Radarmrollen and the at least one further or more other roles on the dimensions of a fork lift truck. For example, the Radarmrollen are arranged substantially to each other at a distance as the forks of a pallet truck. This makes it possible to insert the changing device together with the traction battery in the battery compartment and lift by lowering the rollers and drive out of the battery compartment or insert in reverse order in the battery compartment. Advantageously, the changeover device can thus be retrofitted without retrofitting in industrial trucks, which are provided for a change of the traction battery with a pallet truck. There is no additional additional truck in the form of a fork lift truck required and the changing device is always available when changing the traction battery. Furthermore, no separate support of the truck or vehicle is necessary and the changing device can be used regardless of a tire wear, since the lifting of the bottom of the battery compartment or the support areas in the bottom region of the battery compartment, by lifting against the road surface. It can be used for the construction of the changing device on a large scale parts and components of pallet trucks. This results in a cost-effective design that over a wide range of uses up to very high vehicle weights and weights of the traction battery can be used, especially since the known technology from the field of pallet trucks is robust and sustainable.
Die Radarmrollen können jeweils an einem Ende eines Radarmhebels gelagert sein, der in einem Drehpunkt in dem Längsprofil mit dem anderen Ende gelagert ist, wobei durch eine Drehung des Radarmhebels die Radarmrollen nach unten bewegt werden.The Radarmrollen can each be mounted at one end of a Radarmhebels, which is mounted in a fulcrum in the longitudinal profile with the other end, wherein by a rotation of the Radarmhebels the Radarmrollen be moved down.
In einer Ausgestaltung kann der Radarmhebel durch eine in dem Längsprofil angeordnete und mit dem Hubmittel verbundene Druck- oder Zugstange bewegt werden.In one embodiment, the Radarmhebel can be moved by a arranged in the longitudinal profile and connected to the lifting means push or pull rod.
Diese Konstruktionsweise und Lagerung der Radarmrollen bzw. Rollen entspricht dem üblichen Aufbau bei Gabelhubwagen. Bei diesen ist eine Rolle an einem Ende des Radarmhebels angeordnet bzw. es können auch mehrere Rollen über einen schwingend gelagerten Radträger einem Ende des Radarmhebels angeordnet sein. Der Radarmhebel befindet sich in einer angehobenen Position in einer Stellung, die nahezu waagerecht ist, und wird durch einen entweder oberhalb seines Lagerungspunktes in dem Längsprofil angreifenden Schubstange durch eine Schubbewegung, oder durch eine Zugstange, die unterhalb des Lagerungspunktes angeordnet ist in Richtung auf das Hubmittel hin nach unten ausgeschwenkt, um die Radarmrolle abzusenken.This construction and storage of Radarmrollen or roles corresponds to the usual structure in pallet trucks. In these, a roller is arranged at one end of the Radarmhebels or it can also be arranged on an oscillating wheel carrier one end of the Radarmhebels more roles. The Radarmhebel is in a raised position in a position which is almost horizontal, and is by a either above its storage point in the longitudinal profile engaging push rod by a pushing movement, or by a tie rod which is disposed below the storage point in the direction of the lifting means swung down to lower the Radarmrolle.
Die Hubmittel können in das Längsprofil integriert sein.The lifting means can be integrated in the longitudinal profile.
Übliche Radarme bzw. Gabeln von Gabelhubwagen weisen eine Mechanik auf, bei der zumeist über ein Gestänge von einem Hydraulikzylinder eine Bewegung auf Rollen an der Spitze des Radarms übertragen wird. Bei der erfindungsgemäßen Wechselvorrichtung können die Hubmittel anstatt dem Gestänge in den Radarm integriert werden, bzw. Hubmittel können an einer verkürzten Druck- oder Zugstange angreifen. Dabei sind die Hubmittel in Längsrichtung betrachtet hinter den in dem Längsprofil vorne angeordneten Radarmrollen positioniert.Conventional arms or forks of pallet trucks have a mechanism in which mostly via a linkage of a hydraulic cylinder, a movement is transmitted to rollers at the top of the Radarms. In the changing device according to the invention, the lifting means can be integrated instead of the linkage in the wheel arm, or lifting means can act on a shortened pressure or pull rod. The lifting means are considered in the longitudinal direction behind the arranged in the longitudinal profile front Radarmrollen.
Vorteilhaft sind zwei weitere Rollen vorhanden, von denen jeweils eine auf jeder Seite der Mittelachse in dem Längsprofil angeordnet ist.Advantageously, two further rollers are present, one of which is arranged in each case one on each side of the central axis in the longitudinal profile.
Die Wechselvorrichtung kann so ausgeführt sein, dass neben den vorne angeordneten Radarmrollen jeweils in jedem Längsprofil weiter hinten eine identische Rolle nochmals angeordnet ist. Dies ergibt eine einfache und robuste Konstruktion, die zugleich platzsparend ist und durch Gleichteile mit Komponenten der Gabelhubwagen sehr kostengünstig ist.The changing device can be designed so that next to the front arranged Radarmrollen each in the longitudinal profile further back an identical role is arranged again. This results in a simple and robust construction, which is at the same time space-saving and is very inexpensive due to identical parts with components of pallet trucks.
Die weiteren Rollen können an einem Ende eines Radarmhebels gelagert sein, der in einem Drehpunkt in dem Längsprofil mit dem anderen Ende gelagert ist, wobei durch eine Drehung des Radarmhebels die weiteren Rollen nach unten bewegt werden.The other rollers may be mounted at one end of a Radarmhebels, which is mounted in a fulcrum in the longitudinal profile with the other end, wherein by a rotation of the Radarmhebels the other rollers are moved downward.
In einer weiteren Ausgestaltung können die Radarmhebel der weiteren Rollen durch eine in dem Längsprofil angeordnete und mit dem Hubmittel verbundene Druck- oder Zugstange bewegt werden.In a further embodiment, the Radarmhebel the other rollers can be moved by a arranged in the longitudinal profile and connected to the lifting means push or pull rod.
In einer Ausführungsform sind die Hubmittel zwischen den Drehpunkten der Radarmhebel der Radarmrollen wie auch der Radarmhebel der weiteren Rollen in dem Längsprofil angeordnet und mit den Druck- oder Zugstangen der Radarmhebel der Radarmrollen wie auch der Radarmhebel der weiteren Rollen verbunden.In one embodiment, the lifting means between the pivot points of the Radarmhebel the Radarmrollen as well as the Radarmhebel the other roles are arranged in the longitudinal profile and connected to the pressure or tension rods of Radarmhebel the Radarmrollen as well as the Radarmhebel the other roles.
Somit sind in dem Längsprofil zwischen den zwei Radarmhebeln die Hubmittel angeordnet, wobei die Radarmhebel jeweils zur Seite der Hubmittel ihren Drehpunkt in dem Längsprofil haben und in angehobenen Position die Radarmrollen bzw. weiteren Rollen sich auf der zu den Hubmitteln abgewandten Seite gegenüber dem Drehpunkt befinden.Thus, in the longitudinal profile between the two Radarmhebeln the lifting means are arranged, the Radarmhebel each have to the side of the lifting means its pivot point in the longitudinal profile and in the raised position the Radarmrollen or other roles are on the side facing away from the lifting means opposite the fulcrum.
Vorteilhaft entspricht das Längsprofil zusammen mit der Radarmrolle zumindest einem vorderen Abschnitt eines Radarms eines Gabelhubwagens.Advantageously, the longitudinal profile corresponds together with the Radarmrolle at least a front portion of a Radarms a Gabelhubwagens.
Die Längsprofile einschließlich der Radarmollen und einer eventuellen Hebelmechanik können ganz oder in Teilen identisch zu Initialhubgabeln von Gabelhubwagen sein. Dadurch ergeben sich erhebliche Kostenvorteile und können bewährte sowie robuste Bauteile eingesetzt werden. Dabei können die Radarme einschließlich des sich verjüngenden Spitzenbereiches weitgehend identisch übernommen und in die Wechselvorrichtung integriert werden. Insbesondere kann eine Auflagefläche gebildet werden, indem durch Verbindungselemente die der Technik der Gabelhubwagen entnommenen Gabeln zur Abstützung der Traktionsbatterie bei der Wechselvorrichtung dienen.The longitudinal profiles, including the wheeled pulleys and any lever mechanisms, may be identical or in part identical to the initial lift forks of pallet trucks. This results in considerable cost advantages and proven and robust components can be used. The arms can be including the tapered tip area largely identical taken and integrated into the changing device. In particular, a bearing surface can be formed by the forks of the technology of forklift trucks used to support the traction battery in the changing device by connecting elements.
In einer günstigen Ausgestaltung entspricht der Abstand der Außenseiten der Längsprofile dem Abstand der Außenseiten der Gabeln von Gabelhubwagen, die für Normpaletten angepasst sind, insbesondere überschreitet dieser nicht einen Wert von 550 mm entsprechend einem Wert für Europaletten.In a favorable embodiment, the distance of the outer sides of the longitudinal profiles corresponds to the distance of the outer sides of the forks of pallet trucks, which are adapted for standard pallets, in particular this does not exceed a value of 550 mm corresponding to a value for Euro pallets.
Die Batteriefächer vieler Flurförderzeugen sind mit Öffnungen im Bodenbereich versehen, so dass Gabelhubwagen ein Anheben der Traktionsbatterie in dem Batteriefach ermöglichen, die auf Normpaletten ausgelegt sind. Dies sind insbesondere Europaletten, wobei eine Breite über die Außenseite der beiden Gabeln gemessen zwischen 510 bis 540 mm, teilweise 550 mm üblich ist. Durch eine entsprechende Auslegung können in diesem Bereich die Längsprofile angeordnet sein.The battery compartments of many industrial trucks are provided with openings in the floor area, so that pallet trucks allow a lifting of the traction battery in the battery compartment, which are designed on standard pallets. These are especially europallets, with a width across the outside of the two forks measured between 510 to 540 mm, sometimes 550 mm is common. By appropriate design, the longitudinal profiles can be arranged in this area.
Die Hubmittel können aus Hydraulikzylindern gebildet sein.The lifting means may be formed of hydraulic cylinders.
In einer weiteren Gestaltung sind die Radarmrollen und/oder weitere Rollen als Tandemrollen ausgebildet.In a further embodiment, the Radarmrollen and / or other roles are designed as tandem rollers.
Tandemrollen, die häufig bei Gabelhubwagen zum Einsatz kommen, bieten den Vorteil, dass sie größere Traglasten aufnehmen können und unempfindlich gegenüber Bodenunebenheiten sind.Tandem rollers, which are often used on pallet trucks, offer the advantage of being able to withstand higher loads and being unaffected by uneven floors.
Die weitere Rolle kann aus einer lenkbaren Rolle bestehen.The other role may consist of a steerable role.
Der Gesamtaufbau der Wechselvorrichtung kann vorsehen, dass nur eine einzelne dritte Rolle, wie beispielsweise beim Gabelhubwagen in der Mittelachse angeordnet, vorgesehen ist.The overall structure of the changing device may provide that only a single third roller, such as the pallet truck arranged in the central axis, is provided.
Vorteilhaft wird die weitere Rolle durch eine Handdeichsel gelenkt.Advantageously, the further role is directed by a hand drawbar.
Die einzelne weitere Rolle, kann durch eine elektrische Lenkvorrichtung gesteuert werden. Alternativ ist jedoch auch eine Ausführung mit einer Handdeichsel denkbar, die besonders kostengünstig und einfach ist. Dabei kann auch vorgesehen sein, dass ein "Hochpumpen" über eine Bewegung der Handdeichsel erfolgt, die über eine Pumpvorrichtung einen hydraulischen Druck erzeugen kann, und über Hydraulikzylinder die Rollen auf den Boden abgesenkt werden.The single further role, can be controlled by an electric steering device. Alternatively, however, an embodiment with a hand drawbar is conceivable, which is particularly inexpensive and easy. It can also be provided that a "pumping up" takes place via a movement of the hand drawbar, which can generate a hydraulic pressure via a pumping device, and the rollers are lowered to the ground via hydraulic cylinders.
Die weitere Rolle kann durch einen Elektromotor angetrieben werden.The other role can be driven by an electric motor.
Es kann mindestens eine der Rollen angetrieben werden, insbesondere durch einen Elektromotor.At least one of the rollers can be driven, in particular by an electric motor.
In einer Weiterbildung der Wechselvorrichtung ist seitlich der Aufnahmefläche, insbesondere in Längsrichtung vor oder hinter der Aufnahmefläche, ein Aggregateabschnitt angeordnet.In a further development of the changing device, an assembly section is arranged laterally of the receiving surface, in particular in the longitudinal direction in front of or behind the receiving surface.
In einem solchen Aggregateabschnitt können beispielsweise Elektrik und/oder Hydraulikaggregate zum Aufbau eines hydraulischen Drucks sowie eventuell eine zusätzliche Batterie oder Ähnliches zusammengefasst werden.In such an aggregate section, for example, electrical and / or hydraulic units for building up a hydraulic pressure and possibly an additional battery or the like can be summarized.
Eine Batteriesteckerverbindung zum Anschluss an die Traktionsbatterie kann an der Wechselvorrichtung angeordnet sein, über die elektrische Aggregate der Wechselvorrichtung mit Strom versorgt werden können.A battery connector for connection to the traction battery may be arranged on the changing device, can be powered by the electrical units of the changing device with power.
Beim Entnehmen der Traktionsbatterie aus dem Batteriefach kann ein Batteriestecker einer Batteriesteckerverbindung von dem Flurförderzeug gelöst werden und mit der Wechselvorrichtung verbunden werden. Dadurch benötigt die Wechselvorrichtung keine eigene Energieversorgung und kann elektrisch angetrieben werden, insbesondere können die sehr schweren Gewichte großer Traktionsbatterie beispielsweise durch ein Hydraulikaggregat in Verbindung mit Hydraulikzylindern rasch und bequem angehoben werden. Auch ist es möglich, die Wechselvorrichtung mit einer Antriebsvorrichtung zu versehen, insbesondere über Elektromotoren eine oder mehrere Rollen anzutreiben, so dass über diese die Traktionsbatterie auch außerhalb des Flurförderzeugs selbstständig transportiert und bewegt werden kann. Zusätzlich ist das Flurförderzeug dann stromlos und stellt keine Gefahr dar und es wird kein Elektrokabel zwischen Flurförderzeug und der sich herausbewegenden Traktionsbatterie gespannt bzw. es kann zu keinen Beschädigungen an der Batteriesteckerverbindung mit dem Fahrzeug kommen, wenn diese nicht rechtzeitig gelöst wird.When removing the traction battery from the battery compartment, a battery connector of a battery connector connection can be solved by the truck and connected to the changing device. As a result, the changing device does not require its own power supply and can be electrically driven, in particular, the very heavy weights of large traction battery can be raised quickly and conveniently, for example by a hydraulic unit in conjunction with hydraulic cylinders. It is also possible to provide the changing device with a drive device, in particular to drive one or more rollers via electric motors, so that the traction battery can be independently transported and moved outside of the truck via this. In addition is the truck then de-energized and represents no danger and there is no electric cable between the truck and the moving traction battery tensioned or there may be no damage to the battery connector to the vehicle if it is not solved in time.
Vorteilhaft ist die Batteriesteckerverbindung unterhalb der Aufnahmefläche angeordnet.Advantageously, the battery connector connection is arranged below the receiving surface.
Da Batterieanschlusskabel an der Oberseite der Traktionsbatterie im Regelfall angeordnet sind, wird dadurch eine übermäßige freie Kabellänge, die an Hindernissen hängen bleiben könnte, vermieden.Since battery connection cables are usually arranged at the top of the traction battery, thereby an excessive free cable length, which could get stuck on obstacles avoided.
Aggregate und/oder die Hubmittel können durch eine Fernsteuerung gesteuert werden, die drahtlos oder über ein Kabel, insbesondere ein Spiralkabel, mit der Wechselvorrichtung verbunden ist.Aggregates and / or the lifting means can be controlled by a remote control, which is wirelessly or via a cable, in particular a spiral cable, connected to the changing device.
Es kann eine Ausschubvorrichtung vorgesehen sein, die mit dem Flurförderzeug verbunden werden kann und die Wechselvorrichtung in das Batteriefach hineinziehen oder aus diesem heraus drücken kann.It can be provided a Ausschubvorrichtung which can be connected to the truck and pull the changing device into the battery compartment or can push out of this.
Eine solche Ausschubvorrichtung kann auch unabhängig von den Merkmalen vorgesehen sein, dass eine Radarmrolle auf jeder Seite einer Mittelachse der Wechselvorrichtung sowie eine weitere Rolle an der Unterseite der Wechselvorrichtung vorhanden ist. Grundsätzlich kann eine solche Ausschubvorrichtung an jeder Wechselvorrichtung nach dem Oberbegriff des Patentanspruchs 1 vorgesehen sein.Such a Ausschubvorrichtung can also be provided independently of the features that a Radarmrolle on each side of a central axis of the changing device and another role on the underside of the changing device is present. In principle, such an ejection device can be provided on each changing device according to the preamble of patent claim 1.
Die Ausschubvorrichtung kann ein Hydraulikzylinder sein.The Ausschubvorrichtung may be a hydraulic cylinder.
Insbesondere ist auch hier ein mehrfach ausfahrender Teleskopzylinder, oder eine Kombination aus zwei gegensätzlich orientierten und an ihren Zylindern verbundenen Hydraulikzylindern möglich, um einen vollständigen Ausschub aus dem Batteriefach zu ermöglichen.In particular, a multi-extending telescopic cylinder, or a combination of two oppositely oriented and connected to their cylinders hydraulic cylinders is also possible here to allow a complete ejection from the battery compartment.
Vorteilhaft ist der Hydraulikzylinder in einer Mittelachse der Wechselvorrichtung angeordnet.Advantageously, the hydraulic cylinder is arranged in a central axis of the changing device.
Es kann eine Verbindung mit dem Flurförderzeug über einen Winkelbereich beweglich sein, insbesondere als Kugelgelenk ausgeführt sein.It may be a connection to the truck over an angular range movable, in particular be designed as a ball joint.
Eine solche Anbindung des Hydraulikzylinders ermöglicht es, dass ein Höhenunterschied beim Anheben der Traktionsbatterie ausgeglichen wird, in dem der Befestigungspunkt an dem Flurförderzeug eine Winkelabweichung gegenüber der Horizontalen beispielsweise der Kolbenstange ermöglicht.Such a connection of the hydraulic cylinder makes it possible that a height difference when lifting the traction battery is compensated, in which the attachment point on the truck allows an angular deviation relative to the horizontal, for example, the piston rod.
Die Aufgabe wird auch gelöst durch ein System aus einem Flurförderzeug mit einem Batteriefach und einer Wechselvorrichtung, wie sie zuvor beschrieben wurde, wobei das Batteriefach an seiner Bodenseite eine Öffnung aufweist, so dass eine in dem Batteriefach befindliche Traktionsbatterie mit einem Gabelhubwagen entnommen werden kann.The object is also achieved by a system comprising a truck with a battery compartment and a changing device, as described above, wherein the battery compartment has an opening at its bottom side, so that a traction battery located in the battery compartment can be removed with a pallet truck.
Das System zeigt die bereits zuvor geschilderten Vorteile.The system shows the advantages already described above.
Vorteilhaft weist bei dem System das Flurförderzeug ein Kugelgelenk als Verbindung zu dem Hydraulikzylinder der Wechselvorrichtung auf.Advantageously, in the system, the truck on a ball joint as a connection to the hydraulic cylinder of the changing device.
Als Alternative Ausführungsform ist es auch denkbar anstatt Rollen bzw. Rädern bei der Wechselvorrichtung einen Kettenantrieb oder Raupenantrieb vorzusehen, der beispielsweise abgesenkt werden kann und auf dem die Wechselvorrichtung aus dem Batteriefach heraus bewegt werden kann.As an alternative embodiment, it is also conceivable instead of rollers or wheels to provide a chain drive or caterpillar drive in the changing device, which can be lowered, for example, and on which the changing device can be moved out of the battery compartment.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand der in den schematischen Figuren dargestellten Ausführungsbeispiele näher erläutert. Hierbei zeigt
- Fig. 1
- schematisch ein Flurförderzeug mit seitlich ausgeschobener Traktionsbatterie in Aufsicht,
- Fig. 2
- die Traktionsbatterie der
Fig. 1 auf einer erfindungsgemäßen Wechselvorrichtung in einem Batteriefach, - Fig. 3
- die Traktionsbatterie der
Fig. 1 auf der erfindungsgemäßen Wechselvorrichtung in dem Batteriefach, - Fig. 4
- den Ausschubvorgang in der Ebene I in der
Fig. 1 , - Fig. 5
- die erfindungsgemäße Wechselvorrichtung in einer Perspektivansicht,
- Fig. 6
- die Wechselvorrichtung der
Fig. 5 mit ausgefahrener Ausschubvorrichtung, - Fig. 7
- die Wechselvorrichtung der
Fig. 5 mit der Traktionsbatterie und - Fig. 8
- die Wechselvorrichtung mit Traktionsbatterie in Seitenansicht.
- Fig. 1
- schematically an industrial truck with laterally ejected traction battery in supervision,
- Fig. 2
- the traction battery of
Fig. 1 on a changing device according to the invention in a battery compartment, - Fig. 3
- the traction battery of
Fig. 1 on the changing device according to the invention in the battery compartment, - Fig. 4
- the ejection process in the level I in the
Fig. 1 . - Fig. 5
- the changing device according to the invention in a perspective view,
- Fig. 6
- the changing device of
Fig. 5 with extended ejection device, - Fig. 7
- the changing device of
Fig. 5 with the traction battery and - Fig. 8
- the changing device with traction battery in side view.
Die
Die
Die
Die
Die
Indem die Längsprofile 21 über ihre Außenkanten ungefähr untereinander einen Abstand aufweisen, wie er bei Gabelhubwagen üblich ist, kann die erfindungsgemäße Wechselvorrichtung 7 bei Flurförderzeugen 1 eingesetzt werden und mit der Traktionsbatterie zusammen über die Auflageflächen 24 in dem Batteriefach 8 abgestellt werden, die durch eine Öffnung im Bodenbereich des Batteriefachs 8 für ein Anheben der Traktionsbatterie 6 durch einen Gabelhubwagen vorgesehen sind. Besonders vorteilhaft ist eine Nachrüstung möglich und bei Verwendung einer geringfügig kleineren Traktionsbatterie 6 keinerlei Änderung an dem Flurförderzeug 1 erforderlich, außer eventuell das Vorsehen einer Befestigungsposition für die Ausschubvorrichtung 16.By the
Die
Weiterhin ist in der
Die
Die
Claims (25)
- Exchange device for a traction battery (6) of an industrial truck (1) operated electrically by battery, with a receiving surface (9), onto which the traction battery (6) can be placed, wherein the exchange device (7) can be inserted together with the traction battery (6) into a battery compartment (8) of the industrial truck (1), and the exchange device (7) has rollers (11, 15) which can be lowered below the receiving surface (9) by lifting means (23) and by means of which the traction battery (6) together with the exchange device (7) can be raised to such an extent that the exchange device (7) can be moved out of the battery compartment (8) in a rolling manner on a carriageway surface (13), wherein at least one roller in each case is arranged in the form of a wheel arm roller (11) on each side of a central axis of the exchange device (7) and also at least one further roller (15) is arranged on the lower side of the exchange device (7),
characterized in that
the wheel arm rollers (11) are each mounted in a longitudinal profile (21), which is U-shaped at least in sections, as part of a frame which forms the supporting surface (9), and a supporting surface (24) with which the exchange device (7) can stand in the battery compartment (8) is in each case arranged laterally on the outside of the longitudinal profile (21). - Exchange device according to Claim 1,
characterized in that
the wheel arm rollers (11) are each mounted at an end of a wheel arm lever (30) which is mounted at a pivot point in the longitudinal profile (21) with the other end, wherein the wheel arm rollers (11) are moved downwards by rotation of the wheel arm lever (30). - Exchange device according to Claim 2,
characterized in that
the wheel arm lever (30) can be moved by a push or pull rod (31) which is arranged in the longitudinal profile (21) and is connected to the lifting means (23) . - Exchange device according to one of Claims 1 to 3,
characterized in that
the lifting means (23) are integrated in the longitudinal profile (21). - Exchange device according to one of Claims 1 to 4,
characterized in that
there are two further rollers (15), of which each is arranged in the longitudinal profile (21) on each side of the centre axis. - Exchange device according to Claim 5,
characterized in that
the further rollers (15) are each mounted at an end of a wheel arm lever (30) which is mounted at a pivot point in the longitudinal profile (21) with the other end, wherein the further rollers (15) are moved downwards by rotation of the wheel arm lever (30) . - Exchange device according to Claim 6,
characterized in that
the wheel arm levers (30) of the further rollers (15) can be moved by a push or pull rod (31) which is arranged in the longitudinal profile and is connected to the lifting means (23). - Exchange device according to Claims 3 and 7,
characterized in that
the lifting means (23) are arranged in the longitudinal profile (21) between the pivot points of the wheel arm levers (30) of the wheel arm rollers (11) and of the wheel arm levers (30) of the further rollers (15) and are connected to the push or pull rods (31) of the wheel arm levers (30) of the wheel arm rollers (11) and of the wheel arm levers (30) of the further rollers. - Exchange device according to one of Claims 1 to 8,
characterized in that
the longitudinal profile (21) together with the wheel arm roller (11) corresponds at least to a front portion of a wheel arm (20) of a forklift truck. - Exchange device according to one of Claims 1 to 9,
characterized in that
the lifting means (23) are formed from hydraulic cylinders (22). - Exchange device according to one of Claims 1 to 10,
characterized in that
the wheel arm rollers (11) and/or further rollers (15) are designed as tandem rollers (12). - Exchange device according to one of Claims 1 to 11,
characterized in that
the further roller (15) consists of a steerable roller. - Exchange device according to Claim 12,
characterized in that
the further roller (15) is steered by a manual steering tiller. - Exchange device according to Claim 12 or 13,
characterized in that
the further roller (15) is driven by an electric motor. - Exchange device according to one of Claims 1 to 14,
characterized in that
at least one of the rollers (11, 15) can be driven, in particular by an electric motor'. - Exchange device according to one of Claims 1 to 15,
characterized in that
a unit section (10) is arranged to the side of the receiving surface (9), in particular in front of or behind the receiving surface (9) in the longitudinal direction. - Exchange device according to one of Claims 1 to 16,
characterized in that
a battery plug connection (27) for connection to the traction battery (6) is arranged on the exchange device (7), via which electrical units of the exchange device (7) can be supplied with power. - Exchange device according to Claim 17,
characterized in that
the battery plug connection (27) is arranged below the receiving surface (9). - Exchange device according to one of Claims 1 to 18,
characterized in that
units and/or the lifting means (23) can be controlled by a remote controller which is connected wirelessly or via a cable, in particular a spiral cable, to the exchange device (7). - Exchange device according to one of Claims 1 to 19,
characterized in that
an ejector device (16) is provided which can be connected to the industrial truck (1) and can pull the exchange device (7) into the battery compartment (8) or can push same out of the latter. - Exchange device according to Claim 20,
characterized in that
the ejector device (16) is a hydraulic cylinder (17) . - Exchange device according to Claim 21,
characterized in that
the hydraulic cylinder (17) is arranged in a centre axis of the exchange device (7). - Exchange device according to Claim 21 or 22,
characterized in that
a connection to the industrial truck (7) is movable over an angular range, and in particular is designed as a ball and socket joint (19). - System consisting of an industrial truck (1) with a battery compartment (8) and an exchange device (7) according to one of the preceding claims, wherein the battery compartment (8) has an opening on its bottom side such that a traction battery (6) which is located in the battery compartment (8) can be removed with a forklift truck.
- System according to Claim 24 with an exchange device according to Claim 23,
characterized in that
the industrial truck (1) has a ball and socket joint (19) as the connection to the hydraulic cylinder (17) of the exchange device (7).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015115987 | 2015-09-22 | ||
DE102015116346.2A DE102015116346A1 (en) | 2015-09-22 | 2015-09-28 | Replacement device for traction battery of a truck |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3147255A1 EP3147255A1 (en) | 2017-03-29 |
EP3147255B1 true EP3147255B1 (en) | 2018-11-14 |
Family
ID=56852172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16186752.8A Active EP3147255B1 (en) | 2015-09-22 | 2016-09-01 | Exchange device for traction battery of an industrial truck |
Country Status (1)
Country | Link |
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EP (1) | EP3147255B1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1121095A (en) * | 1997-07-04 | 1999-01-26 | Toshiba Butsuryu Kk | Scooping truck |
JPH11246193A (en) * | 1998-02-27 | 1999-09-14 | Toyota Autom Loom Works Ltd | Battery replacing method and device therefor and battery type forklift |
AU2003202652A1 (en) * | 2002-02-12 | 2003-09-04 | Tynecat Technologies Pty Ltd | A transport trolley having pivotable roller housings |
DE102005025647A1 (en) | 2005-06-03 | 2006-12-07 | Still Gmbh | Truck with laterally removable power supply unit |
DE102006055361A1 (en) | 2006-11-23 | 2008-05-29 | Still Gmbh | Truck with laterally removable battery |
EP2641810B1 (en) * | 2012-03-19 | 2018-05-23 | Hyster-Yale Group, Inc. | System and method for steering vehicles |
FR2989522B1 (en) * | 2012-04-12 | 2014-08-22 | Pierre Sabatier | STAND-ALONE BATTERY FOR HYBRID OR ELECTRIC VEHICLES |
CN202704960U (en) * | 2012-07-13 | 2013-01-30 | 浙江诺力机械股份有限公司 | Storage battery quick changing device for forklift truck with storage battery |
CN103192804B (en) * | 2013-04-09 | 2015-03-25 | 王建排 | Fast battery displacement device of battery compartment of large electric vehicle |
-
2016
- 2016-09-01 EP EP16186752.8A patent/EP3147255B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
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