EP2284118B1 - Drive mount for rotatable mounting of a drive unit of an industrial truck - Google Patents
Drive mount for rotatable mounting of a drive unit of an industrial truck Download PDFInfo
- Publication number
- EP2284118B1 EP2284118B1 EP20100007892 EP10007892A EP2284118B1 EP 2284118 B1 EP2284118 B1 EP 2284118B1 EP 20100007892 EP20100007892 EP 20100007892 EP 10007892 A EP10007892 A EP 10007892A EP 2284118 B1 EP2284118 B1 EP 2284118B1
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- European Patent Office
- Prior art keywords
- drive
- sliding
- running surface
- drive unit
- mount
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- 238000005096 rolling process Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- B66F9/075—Constructional features or details
- B66F9/07586—Suspension or mounting of wheels on chassis
-
- 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
- B66F9/07572—Propulsion arrangements
Definitions
- the invention relates to a drive carrier for the rotatable mounting of a drive unit of a truck, which comprises a drive wheel and a drive motor, according to the preamble of claim 1 or claim 6.
- the truck may in particular be a tiller-guided industrial truck with an electric traction drive.
- the drive unit often has a single drive wheel which is rotatably mounted about a horizontal axis, for example in a stool.
- the drive unit has an electric motor which drives the drive wheel via a gearbox.
- the entire drive unit is pivotally mounted about a vertical axis in the truck to perform a steering movement can.
- FIGS. 6 and 7 show a section of a known from the prior art truck.
- This has a drive unit with an electric motor 10 and a drive wheel 12.
- the known drive unit further comprises a transmission which is arranged in a housing 14.
- the entire drive unit is mounted pivotably about a vertical axis in a drive carrier 16.
- the drive carrier 16 has a mounting arm 18 which is fixed to a frame plate 20 of the truck, and an annular body 22 in which the drive unit is rotatably mounted.
- this rotatable mounting is realized by means of two roller bearings.
- the roller bearings each have an inner ring 24 and an outer ring 26, between which rollers 28 are arranged as rolling elements, and each having a running surface for the rollers of the roller bearing.
- the axial directions of the rollers of the two roller bearings are slightly against each other inclined, so that the bearing formed by the two roller bearings can accommodate both radial and axial forces.
- the two inner rings 24 of the roller bearings are fixedly mounted on a cylindrical portion 30 at the upper end of the drive unit.
- the outer rings 26 of the two roller bearings are pressed into Aufriahmeabête of the annular body 22 of the drive carrier 16.
- Fig. 5 shows a drive unit of another known truck.
- This comprises a drive wheel 32, a drive motor 34 and a gear 36.
- the drive unit is pivotally mounted about a vertical axis in a horizontally arranged frame plate 38 of the truck.
- a ball bearing with an inner ring 40, which encloses a cylindrical portion of the housing of the transmission 36 and the housing 34 of the motor.
- An outer ring 42 of the ball bearing has an annular flange which is bolted to the frame plate 38.
- Inner ring 40 and outer ring 42 each have a running surface for the balls 44 of the ball bearing.
- a drive unit for a truck in which a steerable drive wheel is connected via a gear unit with an electric drive motor.
- a bearing unit has an inner ring and an outer ring The outer ring is torsionally rigid bolted to a frame member of the truck. The inner ring of the bearing unit is optionally bolted to the gear unit or to the drive motor.
- a drawbar truck with a drive part and a load part has become known.
- a structural unit has a bearing portion, which is formed integrally with the jacket of a lifting cylinder.
- Two rolling bearings each having an inner and an outer ring are formed in an opening of the bearing portion.
- the bearings take a pin for storage of a drawbar.
- a drive carrier for the rotatable mounting of a drive unit of a truck which includes a drive wheel and a drive motor, which allows a more cost-effective production and assembly of the truck and a compact design.
- the annular body encloses an opening into which the drive unit can be inserted. Apart from the sliding or running surface, it is not necessarily rotationally symmetrical. In particular, on its outer side, the annular body may have a rectangular or polygonal basic shape, wherein the corners may be more or less rounded.
- the attachment arms may in this case, for example, protrude from or be formed by the corner regions of the annular body.
- the drive carrier is a component with a complex geometry, which leaves the designer a lot of freedom in the arrangement of the drive unit with respect to the frame of the truck.
- a plane of the bearing relative to the vehicle frame may be inclined and / or spaced.
- the drive carrier is made in one piece from a single blank.
- the blank may for example be a cast or forged part.
- a sliding bearing or a rolling bearing For storage of the drive unit in the drive carrier, a sliding bearing or a rolling bearing is provided, which receives the rotatably mounted drive unit.
- the sliding surface associated with the drive carrier in the case of a plain bearing or the rolling surface for rolling elements in the case of a rolling bearing is formed directly on the annular body of the drive carrier in the invention. As a result, a separate bearing ring can be saved, and the installation of such a ring is eliminated.
- the sliding surface is that surface of the sliding bearing on which a sliding surface formed on the drive unit slides along.
- the rolling surface for rolling elements of a rolling bearing is the surface on which roll the rolling elements of the bearing.
- the rolling elements may be, for example, balls, rollers or needles.
- the sliding or running surface can be produced by machining a surface of the drive carrier, for example by turning or milling, grinding or polishing.
- the inventive integration of the sliding or running surface in the drive carrier can simplify the construction and assembly of the truck. It can also enable a more compact construction.
- the at least one fastening arm has at least one bore for fastening the drive carrier to the frame of the industrial truck by means of screws and / or bolts.
- the mounting arm can be connected in any way with the frame of the truck. An attachment by means of screws and / or bolts is particularly useful and can be easily solved if necessary again.
- the at least one attachment arm extends radially outwards and obliquely downwards, starting from the annular body.
- the direction “downwards” refers to the intended mounting position of the drive carrier in an industrial truck.
- the at least one mounting arm can bridge a distance between the storage of the drive unit and the frame of the truck.
- an attachment surface of the at least one attachment arm which adjoins a frame-fixed element of the truck in the mounted state of the drive carrier, is arranged at a distance in the direction of the axis of symmetry of the sliding or running surface of the sliding or running surface.
- the frame-fixed element can be either a part of the frame of the truck itself or with respect to the frame fixedly arranged intermediate piece, such as a washer or the like.
- the sliding or running surface is disposed on an inner side of the annular body.
- the sliding or running surface can also be formed on an outer side of the annular body and encompassed by an outer ring-shaped counterpart on the drive unit, or for example on an upper and / or lower side of the annular body.
- the sliding or running surface is formed on an inner side of the annular body, so that the annular body of the drive carrier forms an outer ring of the bearing.
- the drive carrier according to claim 6 itself forms part of the frame of the truck.
- This part can be, for example, a transverse or longitudinal beam or another carrier of the truck frame.
- the frame of the truck forms a support structure to which the wheels of the truck attached and held a load supporting the truck, is guided or supported.
- the sliding surface is formed in or on the support forming part of the frame.
- the sliding surface may be formed by corresponding surface machining of a cylindrical surface of the carrier.
- the running surface for rolling elements of a rolling bearing can be introduced, for example, by mechanical machining by turning or milling in the carrier.
- the Drive carrier with carrier and sliding or running surface is made in one piece from a single blank.
- the carrier is designed for permanent connection with other frame parts.
- the carrier may be provided for welding to other carriers of the frame.
- the drive carrier and the remaining frame parts then form an inseparable unit after assembly of the drive carrier.
- the drive carrier has a bearing bed or a further sliding or running surface for receiving a steering device which is to be stored rotatably relative to the drive carrier.
- the steering device may be, for example, a drawbar to be connected to a drawbar.
- the steering device can be rotatably mounted on the drive carrier with the aid of a sliding or roller bearing.
- a conventional, an inner and outer ring exhibiting sliding or rolling bearings can be used in the bearing bed of the drive carrier.
- the drive carrier may have a further sliding or running surface which, like that for the mounting of the drive unit, is formed integrally with the drive carrier. In both cases, the drive carrier fulfills a dual function by storing both the drive unit and the steering device. As a result, the assembly and component costs can be further reduced.
- a relative to the drive carrier rotatable steering device which is stored independently of the drive unit, is used in particular for industrial trucks, which have a steering drive for rotation of the drive unit, wherein the rotational movement of the steering device is decoupled from the rotational movement of the drive unit.
- the drive unit has a sliding or running surface cooperating with the sliding or running surface of the drive carrier, which is formed on a housing of the drive motor or on a housing of a transmission of the drive unit and manufactured in one piece therewith.
- the sliding or running surface associated with the drive unit can also be designed as a separate bearing ring, which is connected to the drive unit.
- the above object is also achieved by the truck with the features of claim 11.
- the truck according to the invention comprises a drive system according to claim 9 or 10.
- Fig. 1 The arrangement of Fig. 1 includes a drive unit with a drive motor 50 and a drive wheel 52 which is rotatably mounted on an arm 54 about a horizontal axis. Fixedly connected to the housing of the motor 50 is a drawbar 56, which has two bearing eyes 58 for pivotally mounting a drawbar. A transmission with a transmission housing 60 is disposed below the drive motor 50.
- the entire drive unit with drive motor 50, drawbar 56, drive wheel 52 and gear housing 60 is rotatably mounted about a vertical axis in the drive carrier 62.
- the drive carrier has an annular body 64 which is substantially rotationally symmetrical.
- a bearing bed 66 is arranged, which is provided in a non-illustrated use of the drive carrier 62 for a truck with a decoupled from the rotational movement of the drive unit steering device and in which a bearing for the steering device used or a sliding or bearing surface can be incorporated.
- a tread 68 is formed on the inside of a lower portion of the annular body 64.
- this running surface 68 roll the rolling elements of the bearing for the drive unit, namely balls from.
- the annular body 64 forms an outer ring of the rolling bearing for receiving the Drive unit.
- the function of the inner ring is taken directly from the gear housing 60, in which a running surface 70 is incorporated.
- attachment arms 72 extend radially outwardly and downwardly.
- the attachment arms 72 each consist of two legs 72a, 72b beginning at a distance in the circumferential direction on the annular body 64 and converging radially outwards and downwards.
- At the outer ends of the fastening arms 72 are each a vertically aligned, cylindrical portion 74 having a bore 76.
- At the lower end of each cylindrical portion 74 is an annular abutment surface 78 which abuts the top of a frame plate 80 of the truck.
- a guided through the bore 76 screw 82 engages in a threaded bore 82 of the frame plate 80 and thus secures the drive carrier 62 on the frame plate 80th
- the drive motor 62 can be seen from above in the center and the drive carrier 62 can be seen therefrom.
- the drawbar 56 is also recognizable.
- the drive carrier 62 is screwed with three screws 82 to the frame plate 80 of the truck.
- the frame plate 80 in turn is firmly connected to other carriers 86 of the frame of the truck.
- FIGS. 1 and 2 The arrangement of FIGS. 1 and 2 is mounted in an industrial truck that is in Fig. 3 is shown. It has two load bearing means 88, which are arranged vertically adjustable on a mast 90. The drive part 92 of the truck is in the Fig. 3 provided with several covers. The truck is controlled by a drawbar 94 with a multi-function handle 96.
- FIGS. 5 to 7 were already explained in the introduction to the description.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Rolling Contact Bearings (AREA)
- Handcart (AREA)
Description
Die Erfindung betrifft einen Antriebsträger zur drehbaren Lagerung einer Antriebseinheit eines Flurförderzeugs, die ein Antriebsrad und einen Antriebsmotor umfasst, nach dem Oberbegriff des Anspruchs 1 bzw. des Anspruchs 6.The invention relates to a drive carrier for the rotatable mounting of a drive unit of a truck, which comprises a drive wheel and a drive motor, according to the preamble of claim 1 or claim 6.
Bei dem Flurförderzeug kann es sich insbesondere um ein deichselgeführtes Flurförderzeug mit einem elektrischen Fahrantrieb handeln. Bei derartigen Flurförderzeugen hat die Antriebseinheit häufig ein einziges Antriebsrad, das um eine horizontale Achse drehbar gelagert ist, beispielsweise in einem Schemel. Die Antriebseinheit hat einen Elektromotor, der über ein Getriebe das Antriebsrad antreibt. Die gesamte Antriebseinheit ist um eine vertikale Achse schwenkbar in dem Flurförderzeug gelagert, um eine Lenkbewegung ausführen zu können.The truck may in particular be a tiller-guided industrial truck with an electric traction drive. In such trucks, the drive unit often has a single drive wheel which is rotatably mounted about a horizontal axis, for example in a stool. The drive unit has an electric motor which drives the drive wheel via a gearbox. The entire drive unit is pivotally mounted about a vertical axis in the truck to perform a steering movement can.
Die
Die beiden Innenringe 24 der Rollenlager sind auf einem zylindrischen Abschnitt 30 am oberen Ende der Antriebseinheit fest angeordnet. Die Außenringe 26 der beiden Rollenlager sind in Aufriahmeabschnitte des ringförmigen Körpers 22 des Antriebsträgers 16 eingepresst.The two
Aus der Druckschrift
Aus der Druckschrift
Davon ausgehend ist es die Aufgabe der Erfindung, einen Antriebsträger zur drehbaren Lagerung einer Antriebseinheit eines Flurförderzeugs, die ein Antriebsrad und einen Antriebsmotor umfasst, anzugeben, der eine kostengünstigere Fertigung und Montage des Flurförderzeugs und einen kompakten Aufbau erlaubt.On this basis, it is the object of the invention to provide a drive carrier for the rotatable mounting of a drive unit of a truck, which includes a drive wheel and a drive motor, which allows a more cost-effective production and assembly of the truck and a compact design.
Diese Aufgabe wird gelöst durch den Antriebsträger mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind in den sich anschließenden Unteransprüchen angegeben.This object is achieved by the drive carrier with the features of claim 1. Advantageous embodiments are specified in the subsequent subclaims.
Der erfindungsgemäße Antriebsträger hat
- einen ringförmigen Körper und
- mindestens einen radial und/oder axial von dem ringförmigen Körper vorstehenden Befestigungsarm zur Befestigung des ringförmigen Körpers an einem Rahmen des Flurförderzeugs, wobei
- der Antriebsträger einteilig aus einem einzigen Rohteil gefertigt ist und
- der ringförmige Körper eine Gleitfläche für ein Gleitlager oder eine Lauffläche für Wälzkörper eines Wälzlagers zur Aufnahme der drehbar zu lagernden Antriebseinheit aufweist.
- an annular body and
- at least one radially and / or axially protruding from the annular body mounting arm for fixing the annular body to a frame of the truck, wherein
- the drive carrier is made in one piece from a single blank and
- the annular body has a sliding surface for a sliding bearing or a running surface for rolling elements of a roller bearing for receiving the drive unit to be rotatably mounted.
Der ringförmige Körper umschließt eine Öffnung, in die die Antriebseinheit einsetzbar ist. Abgesehen von der Gleit- bzw. Lauffläche ist er nicht notwendigerweise rotationssymmetrisch. Insbesondere an seiner Außenseite kann der ringförmige Körper eine recht- oder vieleckige Grundform aufweisen, wobei die Ecken mehr oder weniger stark abgerundet sein können. Die Befestigungsarme können in diesem Fall beispielsweise von den Eckbereichen des ringförmigen Körpers vorstehen oder von diesen gebildet sein.The annular body encloses an opening into which the drive unit can be inserted. Apart from the sliding or running surface, it is not necessarily rotationally symmetrical. In particular, on its outer side, the annular body may have a rectangular or polygonal basic shape, wherein the corners may be more or less rounded. The attachment arms may in this case, for example, protrude from or be formed by the corner regions of the annular body.
Im Gegensatz zu einem herkömmlichen, mit einer Rahmenplatte verbindbaren Außenring eines Lagers hat der erfindungsgemäße Antriebsträger vorstehende Befestigungsarme. Er hat daher keine vollständig rotationssymmetrische Form und kann, anders als ein herkömmlicher Außenring, nicht vollständig durch Drehen hergestellt werden. Es handelt sich bei dem Antriebsträger vielmehr um ein Bauteil mit einer komplexen Geometrie, das dem Konstrukteur viele Freiheiten bei der Anordnung der Antriebseinheit mit Bezug auf den Rahmen des Flurförderzeugs lässt. Insbesondere kann eine Ebene des Lagers gegenüber dem Fahrzeugrahmen geneigt und/oder beabstandet sein. Der Antriebsträger ist einteilig aus einem einzigen Rohteil gefertigt. Das Rohteil kann beispielsweise ein Guss- oder Schmiedeteil sein.In contrast to a conventional, connectable to a frame plate outer ring of a bearing of the drive carrier according to the invention has protruding attachment arms. Therefore, it does not have a completely rotationally symmetric shape and, unlike a conventional outer ring, can not be made entirely by turning. Rather, the drive carrier is a component with a complex geometry, which leaves the designer a lot of freedom in the arrangement of the drive unit with respect to the frame of the truck. In particular, a plane of the bearing relative to the vehicle frame may be inclined and / or spaced. The drive carrier is made in one piece from a single blank. The blank may for example be a cast or forged part.
Zur Lagerung der Antriebseinheit in dem Antriebsträger ist ein Gleitlager oder ein Wälzlager vorgesehen, das die drehbar zu lagernde Antriebseinheit aufnimmt. Die dem Antriebsträger zugeordnete Gleitfläche im Falle eines Gleitlagers bzw. die Lauffläche für Wälzkörper im Falle eines Wälzlagers ist bei der Erfindung unmittelbar an dem ringförmigen Körper des Antriebsträgers ausgebildet. Dadurch kann ein separater Lagerring eingespart werden, und die Montage eines solchen Rings entfällt. Die Gleitfläche ist diejenige Fläche des Gleitlagers, an der eine an der Antriebseinheit ausgebildete Gleitfläche entlang gleitet. Die Lauffläche für Wälzkörper eines Wälzlagers ist diejenige Fläche, auf der die Wälzkörper des Wälzlagers abrollen. Bei den Wälzkörpern kann es sich beispielsweise um Kugeln, Rollen oder Nadeln handeln. Die Gleit- bzw. Lauffläche kann durch mechanische Bearbeitung eine Oberfläche des Antriebsträgers hergestellt werden, beispielsweise durch Drehen oder Fräsen, Schleifen oder Polieren.For storage of the drive unit in the drive carrier, a sliding bearing or a rolling bearing is provided, which receives the rotatably mounted drive unit. The sliding surface associated with the drive carrier in the case of a plain bearing or the rolling surface for rolling elements in the case of a rolling bearing is formed directly on the annular body of the drive carrier in the invention. As a result, a separate bearing ring can be saved, and the installation of such a ring is eliminated. The sliding surface is that surface of the sliding bearing on which a sliding surface formed on the drive unit slides along. The rolling surface for rolling elements of a rolling bearing is the surface on which roll the rolling elements of the bearing. The rolling elements may be, for example, balls, rollers or needles. The sliding or running surface can be produced by machining a surface of the drive carrier, for example by turning or milling, grinding or polishing.
Durch die erfindungsgemäße Integration der Gleit- bzw. Lauffläche in den Antriebsträger kann sich der Aufbau und die Montage des Flurförderzeugs vereinfachen. Sie kann auch einen kompakteren Aufbau ermöglichen.The inventive integration of the sliding or running surface in the drive carrier can simplify the construction and assembly of the truck. It can also enable a more compact construction.
In einer Ausgestaltung weist der mindestens eine Befestigungsarm mindestens eine Bohrung auf zur Befestigung des Antriebsträgers an dem Rahmen des Flurförderzeugs mittels Schrauben und/oder Bolzen. Grundsätzlich kann der Befestigungsarm auf beliebige Weise mit dem Rahmen des Flurförderzeugs verbunden werden. Eine Befestigung mittels Schrauben und/oder Bolzen ist besonders zweckmäßig und kann bei Bedarf einfach wieder gelöst werden.In one embodiment, the at least one fastening arm has at least one bore for fastening the drive carrier to the frame of the industrial truck by means of screws and / or bolts. Basically, the mounting arm can be connected in any way with the frame of the truck. An attachment by means of screws and / or bolts is particularly useful and can be easily solved if necessary again.
In einer Ausgestaltung erstreckt sich der mindestens eine Befestigungsarm ausgehend von dem ringförmigen Körper radial nach außen und schräg nach unten.In one embodiment, the at least one attachment arm extends radially outwards and obliquely downwards, starting from the annular body.
Die Richtungsangabe "nach unten" bezieht sich dabei auf die vorgesehene Montageposition des Antriebsträgers in einem Flurförderzeug. Bei dieser Anordnung kann der mindestens eine Befestigungsarm einen Abstand zwischen der Lagerung der Antriebseinheit und dem Rahmen des Flurförderzeugs überbrücken.The direction "downwards" refers to the intended mounting position of the drive carrier in an industrial truck. In this arrangement, the at least one mounting arm can bridge a distance between the storage of the drive unit and the frame of the truck.
Gemäß einer Ausgestaltung ist eine Befestigungsfläche des mindestens einen Befestigungsarms, die im montierten Zustand des Antriebsträgers an ein rahmenfestes Element des Flurförderzeugs angrenzt, in einem Abstand in Richtung der Symmetrieachse der Gleit- oder Lauffläche von der Gleit- oder Lauffläche angeordnet. Das rahmenfeste Element kann entweder ein Teil des Rahmens des Flurförderzeugs selbst oder ein bezüglich des Rahmens fest angeordnetes Zwischenstück, etwa eine Unterlegscheibe oder dergleichen, sein. Durch die genannte Anordnung der Befestigungsfläche kann das Lager für die Antriebseinheit in einer bevorzugten Position unter- oder oberhalb des rahmenfesten Elements angeordnet werden.According to one embodiment, an attachment surface of the at least one attachment arm, which adjoins a frame-fixed element of the truck in the mounted state of the drive carrier, is arranged at a distance in the direction of the axis of symmetry of the sliding or running surface of the sliding or running surface. The frame-fixed element can be either a part of the frame of the truck itself or with respect to the frame fixedly arranged intermediate piece, such as a washer or the like. As a result of the abovementioned arrangement of the fastening surface, the bearing for the drive unit can be arranged in a preferred position below or above the frame-fixed element.
In einer Ausgestaltung ist die Gleit- oder Lauffläche an einer Innenseite des ringförmigen Körpers angeordnet. Grundsätzlich kann die Gleit- oder Lauffläche auch an einer Außenseite des ringförmigen Körpers ausgebildet und von einem außenringförmigen Gegenstück an der Antriebseinheit umgriffen werden, oder beispielsweise an einer Ober- und/oder Unterseite des ringförmigen Körpers. Bevorzugt ist die Gleit- oder Lauffläche jedoch an einer Innenseite des ringförmigen Körpers ausgebildet, so dass der ringförmige Körper des Antriebsträgers einen Außenring des Lagers bildet.In one embodiment, the sliding or running surface is disposed on an inner side of the annular body. In principle, the sliding or running surface can also be formed on an outer side of the annular body and encompassed by an outer ring-shaped counterpart on the drive unit, or for example on an upper and / or lower side of the annular body. Preferably, however, the sliding or running surface is formed on an inner side of the annular body, so that the annular body of the drive carrier forms an outer ring of the bearing.
Die oben genannte Aufgabe wird ebenfalls gelöst durch den Antriebsträger mit den Merkmalen des Anspruchs 6. Vorteilhafte Ausgestaltungen sind in den sich anschließenden Unteransprüchen angegeben.The above object is also achieved by the drive carrier with the features of claim 6. Advantageous embodiments are specified in the subsequent subclaims.
Der erfindungsgemäße Antriebsträger dient zur drehbaren Lagerung einer Antriebseinheit eines Flurförderzeugs, die ein Antriebsrad mit einem Antriebsmotor umfasst, und weist folgendes auf:
- einen Träger, der einen Teil eines Rahmens des Flurförderzeugs bildet, und
- eine Gleitfläche für ein Gleitlager oder eine Lauffläche für Wälzkörper eines Wälzlagers zur Aufnahme der drehbar zu lagernden Antriebseinheit, wobei
- der Antriebsträger einteilig aus einem einzigen Rohteil gefertigt ist und
- die Gleit- oder Lauffläche in oder an dem Träger ausgebildet ist.
- a support forming part of a frame of the truck, and
- a sliding surface for a sliding bearing or a running surface for rolling elements of a rolling bearing for receiving the drive unit to be rotatably mounted, wherein
- the drive carrier is made in one piece from a single blank and
- the sliding or running surface is formed in or on the carrier.
Hinsichtlich der Merkmale des Antriebsträgers gemäß Anspruch 6, die bei dem vorstehend erläuterten Antriebsträger und seinen besonderen Ausgestaltungen ebenfalls vorhanden sind, wird auf die obigen Erläuterungen verwiesen, die analog auch für den Antriebsträger gemäß Anspruch 6 gelten.With regard to the features of the drive carrier according to claim 6, which are also present in the above-described drive carrier and its particular embodiments, reference is made to the above explanations, which apply analogously to the drive carrier according to claim 6.
Der Antriebsträger nach Anspruch 6 bildet selbst einen Teil des Rahmens des Flurförderzeugs. Dieser Teil kann beispielsweise ein Quer- oder Längsträger oder ein sonstiger Träger des Flurförderzeugrahmens sein. Der Rahmen des Flurförderzeugs bildet eine Tragstruktur, an der die Räder des Flurförderzeugs befestigt und ein Lasttragmittel des Flurförderzeugs gehalten, geführt oder abgestützt ist.The drive carrier according to claim 6 itself forms part of the frame of the truck. This part can be, for example, a transverse or longitudinal beam or another carrier of the truck frame. The frame of the truck forms a support structure to which the wheels of the truck attached and held a load supporting the truck, is guided or supported.
Die Gleit- bzw. Lauffläche ist in oder an dem Träger, der einen Teil des Rahmens bildet, ausgebildet. Beispielsweise kann die Gleitfläche durch entsprechende Oberflächenbearbeitung einer zylindrischen Fläche des Trägers gebildet werden. Die Lauffläche für Wälzkörper eines Wälzlagers kann beispielsweise durch mechanische Bearbeitung durch Drehen oder Fräsen in den Träger eingebracht sein. Der Antriebsträger mit Träger und Gleit- bzw. Lauffläche ist einteilig aus einem einzigen Rohteil gefertigt.The sliding surface is formed in or on the support forming part of the frame. For example, the sliding surface may be formed by corresponding surface machining of a cylindrical surface of the carrier. The running surface for rolling elements of a rolling bearing can be introduced, for example, by mechanical machining by turning or milling in the carrier. Of the Drive carrier with carrier and sliding or running surface is made in one piece from a single blank.
In einer Ausgestaltung ist der Träger zur unlösbaren Verbindung mit weiteren Rahmenteilen ausgebildet. Beispielsweise kann der Träger zum Verschweißen mit weiteren Trägern des Rahmens vorgesehen sein. Der Antriebsträger und die übrigen Rahmenteile bilden dann nach Montage des Antriebsträgers eine unlösbar miteinander verbundene Einheit.In one embodiment, the carrier is designed for permanent connection with other frame parts. For example, the carrier may be provided for welding to other carriers of the frame. The drive carrier and the remaining frame parts then form an inseparable unit after assembly of the drive carrier.
In einer weiteren Ausgestaltung weist der Antriebsträger ein Lagerbett oder eine weitere Gleit- oder Lauffläche zur Aufnahme einer gegenüber dem Antriebsträger drehbar zu lagernden Lenkeinrichtung auf. Die Lenkeinrichtung kann beispielsweise ein mit einer Deichsel zu verbindender Deichselbock sein. Die Lenkeinrichtung kann mit Hilfe eines Gleit- oder Wälzlagers drehbar an dem Antriebsträger gelagert sein. Hierzu kann entweder ein konventionelles, einen Innen- und Außenring aufweisendes Gleit- oder Wälzlager in das Lagerbett des Antriebsträgers eingesetzt werden. Alternativ kann der Antriebsträger eine weitere Gleit- oder Lauffläche aufweisen, die wie diejenige für die Lagerung der Antriebseinheit integral mit dem Antriebsträger ausgebildet ist. In beiden Fällen erfüllt der Antriebsträger eine Doppelfunktion, indem er sowohl die Antriebseinheit als auch die Lenkeinrichtung lagert. Dadurch kann der Montage- und Bauteilaufwand weiter reduziert werden.In a further embodiment, the drive carrier has a bearing bed or a further sliding or running surface for receiving a steering device which is to be stored rotatably relative to the drive carrier. The steering device may be, for example, a drawbar to be connected to a drawbar. The steering device can be rotatably mounted on the drive carrier with the aid of a sliding or roller bearing. For this purpose, either a conventional, an inner and outer ring exhibiting sliding or rolling bearings can be used in the bearing bed of the drive carrier. Alternatively, the drive carrier may have a further sliding or running surface which, like that for the mounting of the drive unit, is formed integrally with the drive carrier. In both cases, the drive carrier fulfills a dual function by storing both the drive unit and the steering device. As a result, the assembly and component costs can be further reduced.
Eine gegenüber dem Antriebsträger drehbare Lenkeinrichtung, die unabhängig von der Antriebseinheit gelagert wird, findet Verwendung insbesondere bei Flurförderzeugen, die zur Drehung der Antriebseinheit einen Lenkantrieb aufweisen, wobei die Drehbewegung der Lenkeinrichtung von der Drehbewegung der Antriebseinheit entkoppelt ist.A relative to the drive carrier rotatable steering device, which is stored independently of the drive unit, is used in particular for industrial trucks, which have a steering drive for rotation of the drive unit, wherein the rotational movement of the steering device is decoupled from the rotational movement of the drive unit.
Die obige Aufgabe wird ebenfalls gelöst durch das Antriebssystem mit den Merkmalen des Anspruchs 9. Es weist eine Antriebseinheit mit einem Antriebsmotor und einem Antriebsrad sowie einen Antriebsträger nach einem der Ansprüche 1 bis 8 auf.The above object is also solved by the drive system with the features of claim 9. It has a drive unit with a drive motor and a drive wheel and a drive carrier according to one of claims 1 to 8.
In einer Ausgestaltung des Antriebssystems weist die Antriebseinheit eine mit der Gleit- oder Lauffläche des Antriebsträgers zusammenwirkende Gleit- bzw. Lauffläche auf, die an einem Gehäuse des Antriebsmotors oder an einem Gehäuse eines Getriebes der Antriebseinheit ausgebildet und einteilig mit diesem gefertigt ist. Grundsätzlich kann die der Antriebseinheit zugeordnete Gleit- oder Lauffläche auch als separater Lagerring, der mit der Antriebseinheit verbunden wird, ausgeführt werden. Vorteilhaft kann jedoch auch aus diese Gleit- oder Lauffläche unmittelbar in ein Gehäuse der Antriebseinheit integriert werden.In one embodiment of the drive system, the drive unit has a sliding or running surface cooperating with the sliding or running surface of the drive carrier, which is formed on a housing of the drive motor or on a housing of a transmission of the drive unit and manufactured in one piece therewith. In principle, the sliding or running surface associated with the drive unit can also be designed as a separate bearing ring, which is connected to the drive unit. Advantageously, however, can also be integrated directly into a housing of the drive unit from this sliding or running surface.
Die obige Aufgabe wird ebenfalls gelöst durch das Flurförderzeug mit den Merkmalen des Anspruchs 11. Das erfindungsgemäße Flurförderzeug weist ein Antriebssystem nach Anspruch 9 oder 10 auf.The above object is also achieved by the truck with the features of claim 11. The truck according to the invention comprises a drive system according to
Die Erfindung wird nachfolgend anhand eines in vier Figuren dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- einen erfindungsgemäßen Antriebsträger mit einer Antriebseinheit im montierten Zustand in einer teilweise geschnittenen Darstellung;
- Fig. 2
- eine Draufsicht auf die Anordnung aus
Fig. 1 von oben; - Fig. 3
- ein erfindungsgemäßes Flurförderzeug in einer perspektivischen Ansicht;
- Fig. 4
- das Flurförderzeug aus
Fig. 3 mit einer entfernten Abdeckung in einer weiteren perspektivischen Ansicht; - Fig. 5
- eine montierte Antriebseinheit eines Flurförderzeugs nach dem Stand der Technik in einer teilweise geschnittenen Darstellung;
- Fig. 6
- eine weitere montierte Antriebseinheit eines anderen aus dem Stand der Technik bekannten Flurförderzeugs in einer perspektivischen Ansicht;
- Fig. 7
- die Antriebseinheit aus
Fig. 6 in einer teilweise geschnittenen Darstellung.
- Fig. 1
- a drive carrier according to the invention with a drive unit in the assembled state in a partially sectioned view;
- Fig. 2
- a plan view of the arrangement
Fig. 1 from above; - Fig. 3
- an inventive truck in a perspective view;
- Fig. 4
- the truck out
Fig. 3 with a removed cover in another perspective view; - Fig. 5
- a mounted drive unit of a truck according to the prior art in a partially sectioned view;
- Fig. 6
- another mounted drive unit of another known from the prior art truck in a perspective view;
- Fig. 7
- the drive unit off
Fig. 6 in a partially cut representation.
Die Anordnung der
Die gesamte Antriebseinheit mit Antriebsmotor 50, Deichselbock 56, Antriebsrad 52 und Getriebegehäuse 60 ist um eine vertikale Achse drehbar in dem Antriebsträger 62 gelagert. Der Antriebsträger hat einen ringförmigen Körper 64, der im Wesentlichen rotationssymmetrisch ist. An der Innenseite eines oberen Abschnitts des ringförmigen Körpers 64 ist ein Lagerbett 66 angeordnet, das bei einer nicht dargestellten Verwendung des Antriebsträgers 62 für ein Flurförderzeug mit einer von der Drehbewegung der Antriebseinheit entkoppelten Lenkeinrichtung vorgesehen ist und in das ein Lager für die Lenkeinrichtung eingesetzt bzw. eine Gleit- oder Lagerfläche eingearbeitet werden kann.The entire drive unit with
An der Innenseite eines unteren Abschnitts des ringförmigen Körpers 64 ist eine Lauffläche 68 ausgebildet. Auf dieser Lauffläche 68 rollen die Wälzkörper des Lagers für die Antriebseinheit, nämlich Kugeln, ab. In diesem Sinne bildet der ringförmige Körper 64 einen Außenring des Wälzlagers zur Aufnahme der Antriebseinheit. Die Funktion des Innenrings wird unmittelbar von dem Getriebegehäuse 60 übernommen, in das eine Lauffläche 70 eingearbeitet ist.On the inside of a lower portion of the
Ausgehend von der Außenseite des ringförmigen Körpers 64 erstrecken sich Befestigungsarme 72 radial nach außen und nach unten. Die Befestigungsarme 72 bestehen jeweils aus zwei in einem Abstand in Umfangsrichtung an dem ringförmigen Körper 64 beginnenden, radial nach außen und unten schräg zusammenlaufenden Schenkeln 72a, 72b. An den äußeren Enden der Befestigungsarme 72 befindet sich jeweils ein vertikal ausgerichteter, zylinderförmiger Abschnitt 74, der eine Bohrung 76 aufweist. Am unteren Ende jedes zylindrischen Abschnitts 74 befindet sich eine ringförmige Anlagefläche 78, die an die Oberseite einer Rahmenplatte 80 des Flurförderzeugs angrenzt. Eine durch die Bohrung 76 hindurch geführte Schraube 82 greift in eine Gewindebohrung 82 der Rahmenplatte 80 ein und befestigt so den Antriebsträger 62 an der Rahmenplatte 80.Starting from the outside of the
In der Ansicht der
Die Anordnung der
In der Ansicht der
Die
Claims (11)
- A drive mount (62) for rotatable mounting of a drive unit of an industrial truck which comprises a driven wheel (52) and a drive motor (50), said drive mount having an annular body (64) which has a sliding surface for a slide bearing or a running surface (68) for rolling bodies of a rolling bearing for receiving the drive unit that is to be rotatably mounted, characterised by• at least one fastening arm (72), projecting radially and/or axially from the annular body (64), for fastening the annular body (64) on a frame of the industrial truck, wherein• the drive mount (62) is made in one piece from one single unmachined part.
- The drive mount (62) according to claim 1, characterised in that the at least one fastening arm (72) has at least one bore (76) for fastening the drive mount (62) on the frame of the industrial truck by means of screws (82) and/or bolts.
- A drive mount (62) according to claim 1 or 2, characterised in that starting from the annular body, the at least one fastening arm (72) extends radially towards the outside and skew towards the downside.
- A drive mount (62) according to any one of claims 1 to 3, characterised in that a fastening surface (78) of the at least one fastening arm (72), which abuts against a frame-fixed element (80) of the industrial truck in the mounted condition of the drive mount (62), is disposed in a distance from the sliding- or running surface (68) in the direction of the symmetry axis of the sliding- or running surface (68).
- A drive mount (62) according to any one of claims 1 to 4, characterised in that the sliding- or running surface (68) is disposed on an inner side of the annular body (64).
- A drive mount (62) for rotatable mounting of a drive unit of an industrial truck which comprises a driven wheel and a drive motor, with• a support which forms a part of a frame of the industrial truck, and• a sliding surface for a slide bearing or a running surface for rolling bodies of a rolling bearing for receiving the drive unit that is to be rotatably mounted, characterised in that• the drive mount with the support and the sliding- or running surface is made in one piece from one single unmachined part, the sliding- or running surface being realised in or on the support.
- The drive mount according to claim 6, characterised in that the support is configured for inseparable connection to further frame parts.
- A drive mount (62) according to any one of claims 1 to 7, characterised in that the drive mount (62) has a support bed (66) or a further sliding- or running surface for receiving a steering device that is to be mounted rotatably with respect to the drive mount (62).
- A drive system comprising a drive unit with a drive motor (50) and a driven wheel (52) and with a drive mount (62) according to any one of claims 1 to 8.
- The drive system according to claim 9, characterised in that the drive unit has a sliding- or running surface, cooperating with the sliding- or running surface (68) of the drive mount (62) and being realised on a casing of the drive motor or on a casing of a gearbox of the drive unit, and being made in one piece with the same.
- An industrial truck with a drive system according to claim 9 or 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910038651 DE102009038651A1 (en) | 2009-08-14 | 2009-08-14 | Drive carrier for the rotatable mounting of a drive unit of a truck |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2284118A2 EP2284118A2 (en) | 2011-02-16 |
EP2284118A3 EP2284118A3 (en) | 2011-12-21 |
EP2284118B1 true EP2284118B1 (en) | 2012-12-05 |
Family
ID=43127283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20100007892 Active EP2284118B1 (en) | 2009-08-14 | 2010-07-29 | Drive mount for rotatable mounting of a drive unit of an industrial truck |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2284118B1 (en) |
DE (1) | DE102009038651A1 (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20221136U1 (en) * | 1970-02-26 | 2005-06-09 | Still S.A.R.L. | Drive unit for warehouse vehicle can be optionally connected so as to be rotationally fixed to gearbox unit or to vehicle frame component using same bearing unit |
SE349610B (en) * | 1971-02-05 | 1972-10-02 | Skf Ind Trading & Dev | |
SE348839B (en) * | 1971-04-21 | 1972-09-11 | Skf Ind Trading & Dev | |
US3838899A (en) * | 1973-07-27 | 1974-10-01 | Gen Motors Corp | Axially preloaded bearing assembly |
DE19522456C2 (en) * | 1995-06-21 | 1999-12-30 | Jungheinrich Ag | Pedestrian pallet truck |
JPH09151950A (en) * | 1995-11-30 | 1997-06-10 | Ntn Corp | Bearing device for wheel of automobile |
JP3699249B2 (en) * | 1997-07-28 | 2005-09-28 | Ntn株式会社 | Hub unit bearing and manufacturing method thereof |
JP4724970B2 (en) * | 2001-07-19 | 2011-07-13 | 株式会社ジェイテクト | Axle bearing device |
DE102005017737A1 (en) * | 2005-04-15 | 2006-10-26 | Zf Friedrichshafen Ag | Drive for an industrial truck |
DE102006041684A1 (en) * | 2006-09-06 | 2008-03-27 | Jungheinrich Ag | Pre-assembly unit for driving a truck |
EP2030939B1 (en) * | 2007-08-31 | 2013-03-20 | BT Products AB | Industrial truck |
-
2009
- 2009-08-14 DE DE200910038651 patent/DE102009038651A1/en not_active Withdrawn
-
2010
- 2010-07-29 EP EP20100007892 patent/EP2284118B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2284118A2 (en) | 2011-02-16 |
DE102009038651A1 (en) | 2011-02-24 |
EP2284118A3 (en) | 2011-12-21 |
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