DE10303636A1 - Hydrostatic propulsive drive with two drive motors has axial piston motors that are components of closed drive axle with central body, axial piston motor attached to both sides of central body - Google Patents
Hydrostatic propulsive drive with two drive motors has axial piston motors that are components of closed drive axle with central body, axial piston motor attached to both sides of central body Download PDFInfo
- Publication number
- DE10303636A1 DE10303636A1 DE2003103636 DE10303636A DE10303636A1 DE 10303636 A1 DE10303636 A1 DE 10303636A1 DE 2003103636 DE2003103636 DE 2003103636 DE 10303636 A DE10303636 A DE 10303636A DE 10303636 A1 DE10303636 A1 DE 10303636A1
- Authority
- DE
- Germany
- Prior art keywords
- drive
- axial piston
- hydrostatic
- central body
- motors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
- B60K17/105—Units comprising at least a part of the gearing and a torque-transmitting axle, e.g. transaxles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0602—Component parts, details
- F03C1/0605—Adaptations of pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/15—Fork lift trucks, Industrial trucks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Motor Power Transmission Devices (AREA)
- Hydraulic Motors (AREA)
Abstract
Description
Die Erfindung betrifft einen hydrostatischen Fahrantrieb mit zwei koaxial angeordneten Axialkolbenmotoren in Schrägscheibenbauweise, die zum direkten Antrieb von zwei parallel zueinander beabstandeten Antriebsrädern vorgesehen sind.The invention relates to a hydrostatic drive with two coaxial axial piston motors in swash plate design, those for the direct drive of two parallel spaced apart drive wheels are provided.
Bei den von der Linde AG, Geschäftsbereich Material Handling, Aschaffenburg, in großer Stückzahl hergestellten und unter der Bezeichnung „39X" verkauften Gabelstaplern kommt ein gattungsgemäßer, sogenannter hydrostatischer Direktantrieb zum Einsatz. Hierbei werden die Vorderräder jeweils ohne Zwischenschaltung eines Untersetzungsgetriebes direkt von einem langsam laufenden Axialkolbenmotor in Schrägscheibenbauweise angetrieben. Die beiden Axialkolbenmotoren dieses Einzelradantriebs sind in Aufnahmehalterungen an den Enden eines Querträgers angeordnet und an diesem befestigt. Der Querträger ist am Fahrzeugrahmen des Gabelstaplers gelagert. Beim Neigen eines am Querträger befestigten Hubgerüstes wird dieser samt den Axialkolbenmotoren in seiner Lagerung am Fahrzeugrahmen verdreht.At the Linde AG, Material division Handling, Aschaffenburg, in large quantity manufactured and sold under the name "39X" comes generic, so-called hydrostatic direct drive for use. Here, the front wheels each without the interposition of a reduction gear directly from one slow-running swash plate type axial piston motor. The two axial piston motors of this single wheel drive are in mounting brackets at the ends of a cross member arranged and attached to this. The cross member is on the vehicle frame of the Forklift stored. When tilting a mast attached to the cross member this together with the axial piston motors in its mounting on the vehicle frame twisted.
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, einen hydrostatischen Fahrantrieb der eingangs genannten Art zur Verfügung zu stellen, dessen Aufbau vereinfacht ist.The present invention lies the task is based on a hydrostatic drive at the beginning mentioned type available to provide, the structure of which is simplified.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Axialkolbenmotoren Bestandteil einer geschlossenen Antriebsachse sind.This object is achieved according to the invention solved, that the axial piston motors are part of a closed drive axis are.
De erfindungswesentliche Gedanke besteht demnach darin, an Stelle von einzelnen langsamlaufenden Axialkolbenmotoren (Direktantrieb durch Axialkolbenmotoren in Schrägscheibenbauweise), die unmittelbar oder mittelbar (wie im eingangs beschriebenen Stand der Technik) am Fahrzeugrahmen befestigt sind, die hydrostatischen Axialkolbenkolbenmotoren in eine geschlossene Antriebsachse zu integrieren. Durch diese integrierte Bauweise können sich Vorteile hinsichtlich einer geringen Anzahl der benötigten Komponenten, einer vereinfachten Fertigung und/oder vereinfachten Montage ergeben.The idea essential to the invention is therefore, instead of single slow-running Axial piston motors (direct drive through swash plate type axial piston motors), the directly or indirectly (as in the stand described at the beginning the technology) are attached to the vehicle frame, the hydrostatic Integrate axial piston motors in a closed drive axis. This integrated design can offer advantages in terms of a small number of the required Components, a simplified manufacturing and / or simplified Assembly result.
So ist gemäß einer ersten vorteilhaften Ausführungsform der Erfindung die Antriebsachse mit einem Zentralkörper versehen, an dem beiderseits jeweils ein Axialkolbenmotor befestigt ist. Der erfindungsgemäße Fahrantrieb besteht also lediglich aus einem Achsmittelstück (Zentralkörper) und den beiden damit verblockten Axialkolbenmotoren. Hierbei ist der Zentralkörper weit weniger aufwendig herzustellen als der aus dem Stand der Technik bekannte Querträger mit endseitigen Aufnahmehalterungen für die Axialkolbenmotoren.So according to a first advantageous embodiment the invention provide the drive axle with a central body, to which an axial piston motor is attached on both sides. The traction drive according to the invention So it only consists of an axle center piece (central body) and the two axial piston motors blocked with it. Here is the central body far less expensive to manufacture than that of the prior art known cross member with end mountings for the axial piston motors.
Darüber hinaus weisen die Axialkolbenmotoren jeweils eine Triebwelle auf und sind im Zentralkörper Mittel zum Verbinden der beiden Triebwellen vorgesehen. Dadurch ist es möglich, in bestimmten Betriebszuständen die beiden Triebwellen der Axialkolbenmotoren zu koppeln und damit die Funktion einer Differentialsperre zu erzielen. Damit eignet sich der erfindungsgemäße hydrostatische Fahrantrieb besonders für Fahrzeuge, die auch im Gelände eingesetzt werden, jedoch im Straßenbetrieb eine Differentialwirkung zwischen den Antriebsrädern benötigen.In addition, the axial piston motors each have a drive shaft and are in the central body means for connecting the provided two drive shafts. This makes it possible to operate the in certain operating states to couple the two drive shafts of the axial piston motors and thus the To achieve the function of a differential lock. This makes the hydrostatic according to the invention Travel drive especially for Vehicles that are also off-road are used, but a differential effect in road operation between the drive wheels need.
Zweckmäßigerweise sind die Mittel zum Verbinden der beiden Triebwellen als Lamellenkupplung ausgebildet. Prinzipiell sind aber auch andere Kupplungen möglich.The means are expedient designed to connect the two drive shafts as a multi-plate clutch. In principle, other couplings are also possible.
Sofern beiderseits der Mittel zum Verbinden der Triebwellen jeweils eine Bremse, insbesondere Federspeicher-Lamellenbremse, angeordnet ist, die mit der Triebwelle des auf derselben Seite angeordneten Axialkolbenmotors in Wirkverbindung steht, können die beiden Axialkolbenmotoren abgebremst werden.If both sides of the means to Connect the drive shafts each with a brake, especially a spring-loaded multi-disk brake, is arranged, which is arranged on the same side with the drive shaft Axial piston motor is operatively connected, the two axial piston motors be slowed down.
Die Bremsen sind in Weiterbildung der Erfindung im Zentralkörper der Antriebsachse angeordnet.The brakes are in training of the invention in the central body arranged the drive axle.
Gemäß einer zweiten vorteilhaften Ausführungsform der Erfindung weist die Antriebsachse ein Achsrohr auf, das als Gehäuse der Axialkolbenmotoren ausgebildet ist. Hierbei sind die einzelnen Komponenten der Antriebsachse in einem Achsrohr angeordnet, das die Funktion eines gemeinsamen, tragenden Gehäuses übernimmt.According to a second advantageous embodiment the invention, the drive axle has an axle tube, which as casing the axial piston motors are designed. Here are the individual Components of the drive axle arranged in an axle tube, the the function of a common, supporting housing.
Es erweist sich als günstig, wenn an beiden Enden des Achsrohres jeweils ein Lagerschild befestigt ist, in dem eine Triebwelle gelagert ist, deren achsinneres freies Wellenende mit einem Zylinderblock des auf der zugeordneten Seite befindlichen Axialkolbenmotors gekoppelt ist.It turns out to be cheap if a bearing plate is attached to both ends of the axle tube is in which a drive shaft is mounted, the axis of which is free Shaft end with a cylinder block on the assigned side located axial piston motor is coupled.
Zweckmäßigerweise ist an der Triebwelle ein Flansch zur Befestigung einer Radfelge angeformt.Appropriately, is on the drive shaft a flange is formed for fastening a wheel rim.
Sofern die Triebwelle mit einer Bremse in Wirkverbindung steht, die axial im Bereich der Befestigung des Lagerschilds am Achsrohr angeordnet ist, kann nach Entfernen des Lagerschildes die Bremse zu Wartungszwecken demontiert werden.If the drive shaft with a brake is operatively connected axially in the area of the attachment of the End shield is arranged on the axle tube, after removing the Bearing plate the brake can be removed for maintenance purposes.
Eine günstige Weiterbildung beider erfindungsgemäßer Ausführungsformen sieht vor, dass die Axialkolbenmotoren mit einander zugewandten Steuerseiten (back-to-back-Bauweise) in der Antriebsachse angeordnet sind. Hierbei befindet sich jeweils die Schrägscheibe im radnahen Bereich der Antriebsachse, während die Steuerseite im Mittelbereich der Antriebsachse angeordnet ist.Favorable training for both Embodiments of the invention provides that the axial piston motors with control sides facing each other (Back-to-back construction) are arranged in the drive axis. Here is located the swashplate in the area of the drive axle near the wheel, while the control side in the middle area the drive axle is arranged.
Vor diesem Hintergrund ist eine weitere Ausgestaltung der Erfindung besonders vorteilhaft, bei der für beide Axialkolbenmotoren gemeinsame Hydraulikanschlüsse an der Antriebsachse angeordnet sind. Diese Anschlüsse befinden sich dann axial zwischen den Steuerseiten der beiden Axialkolbenmotoren.Against this background is another Embodiment of the invention is particularly advantageous in the case of both Axial piston motors are arranged common hydraulic connections on the drive axis. These connections are then located axially between the control sides of the two axial piston motors.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand des in den schematischen Figuren dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigtOther advantages and details The invention are illustrated in the schematic figures embodiment explained in more detail. there shows
Der in
Die beiden Axialkolbenmotoren
Die beiden Axialkolbenmotoren
An dem Zentralkörper
In dem Zentralkörper
Analog zur Versorgung der beiden
Axialkolbenmotoren
Ein wesentlicher Vorteil dieser Ausführungsform
der Endung besteht darin, dass innerhalb des Zentralkörpers, beispielsweise
in der in
Bei Vorhandensein einer solchen Differentialsperre
sind die beiden Triebwellen
Selbstverständlich ist es auch möglich, die beiden
Triebwellen
An der rechten Stirnseite des Achsrohres
An dem aus dem Lagerschild
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003103636 DE10303636B4 (en) | 2003-01-30 | 2003-01-30 | Hydrostatic drive with two traction motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003103636 DE10303636B4 (en) | 2003-01-30 | 2003-01-30 | Hydrostatic drive with two traction motors |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10303636A1 true DE10303636A1 (en) | 2004-08-12 |
DE10303636B4 DE10303636B4 (en) | 2014-11-27 |
Family
ID=32695055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003103636 Expired - Fee Related DE10303636B4 (en) | 2003-01-30 | 2003-01-30 | Hydrostatic drive with two traction motors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10303636B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7681393B2 (en) | 2006-09-06 | 2010-03-23 | Linde Material Handling Gmbh | Hydrostatic drive axle with two hydrostatic axial piston motors utilizing a swashplate design located next to each other |
DE102011105945A1 (en) | 2011-06-29 | 2013-01-03 | Linde Material Handling Gmbh | Wheel drive i.e. hydrostatic wheel drive, for use in drive axle of industrial lorry, has biasing element arranged at outer side of wheel of drive and accessed and actuated via guided longitudinal bore of wheel drive shaft |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1065733B (en) * | 1959-09-17 | Daimler - Benz Aktiengesellschaft, Stuttgart-Untertürkheim | Hydrostatic drive for the wheels of vehicles, in particular motor vehicles | |
US1227055A (en) * | 1912-08-02 | 1917-05-22 | Charles Snow Kellogg | Differential gear. |
DE1182532B (en) * | 1961-06-06 | 1964-11-26 | Yoshikazu Kuze | Hydrostatic transmission for motor vehicles |
DE2052084A1 (en) * | 1970-10-23 | 1972-04-27 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Vehicle axle in the form of a housing |
DE4228745C2 (en) * | 1992-08-28 | 2003-03-20 | Linde Ag | Drive axis for a working machine with driving hydraulics and working hydraulics |
-
2003
- 2003-01-30 DE DE2003103636 patent/DE10303636B4/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7681393B2 (en) | 2006-09-06 | 2010-03-23 | Linde Material Handling Gmbh | Hydrostatic drive axle with two hydrostatic axial piston motors utilizing a swashplate design located next to each other |
DE102011105945A1 (en) | 2011-06-29 | 2013-01-03 | Linde Material Handling Gmbh | Wheel drive i.e. hydrostatic wheel drive, for use in drive axle of industrial lorry, has biasing element arranged at outer side of wheel of drive and accessed and actuated via guided longitudinal bore of wheel drive shaft |
Also Published As
Publication number | Publication date |
---|---|
DE10303636B4 (en) | 2014-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: LINDE MATERIAL HANDLING GMBH & CO. KG, 63743 A, DE |
|
8127 | New person/name/address of the applicant |
Owner name: LINDE MATERIAL HANDLING GMBH, 63743 ASCHAFFENB, DE |
|
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R082 | Change of representative |
Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE |
|
R082 | Change of representative |
Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |