DE10303636B4 - Hydrostatic drive with two traction motors - Google Patents
Hydrostatic drive with two traction motors Download PDFInfo
- Publication number
- DE10303636B4 DE10303636B4 DE2003103636 DE10303636A DE10303636B4 DE 10303636 B4 DE10303636 B4 DE 10303636B4 DE 2003103636 DE2003103636 DE 2003103636 DE 10303636 A DE10303636 A DE 10303636A DE 10303636 B4 DE10303636 B4 DE 10303636B4
- Authority
- DE
- Germany
- Prior art keywords
- drive
- axial piston
- piston motors
- axle
- axle tube
- 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.)
- Expired - Fee Related
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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
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- 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
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- 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
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- 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
Abstract
Hydrostatischer Fahrantrieb mit zwei koaxial angeordneten Axialkolbenmotoren in Schrägscheibenbauweise, die zum direkten Antrieb von zwei parallel zueinander beabstandeten Antriebsrädern vorgesehen sind, dadurch gekennzeichnet, dass die Axialkolbenmotoren (1, 2) Bestandteil einer geschlossenen Antriebsachse (5) sind, die ein Achsrohr (12) aufweist, das als Gehäuse der Axialkolbenmotoren (1, 2) ausgebildet ist, wobei an beiden Enden des Achsrohres (12) jeweils ein Lagerschild (13) befestigt ist, in dem eine mit einem angeformten Flansch zur Befestigung einer Radfelge versehene Triebwelle (11) gelagert ist, deren achsinneres freies Wellenende (11b) mit einem Zylinderblock (14) des auf der zugeordneten Seite befindlichen Axialkolbenmotors (2) gekoppelt ist und die mit einer Bremse (9) in Wirkverbindung steht, die axial im Bereich der Befestigung des Lagerschilds (13) am Achsrohr (12) angeordnet ist.Hydrostatic travel drive with two coaxially arranged axial piston motors in swash plate design, which are provided for the direct drive of two parallel spaced drive wheels, characterized in that the axial piston motors (1, 2) are part of a closed drive axle (5) which has an axle tube (12) , which is designed as a housing of the axial piston motors (1, 2), with a bearing plate (13) attached to both ends of the axle tube (12), in which a drive shaft (11) provided with an integrally formed flange for attaching a wheel rim is mounted , the axially inner free shaft end (11b) is coupled to a cylinder block (14) of the axial piston motor (2) located on the associated side and which is in operative connection with a brake (9) which is axially in the area of attachment of the end shield (13) on Axle tube (12) is arranged.
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, which are provided for direct drive of two parallel spaced drive wheels.
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.A generic, so-called hydrostatic direct drive is used for the forklift trucks manufactured in large numbers by Linde AG, material handling division, Aschaffenburg, and sold under the name "39X". Here, the front wheels are each driven directly by a slow-running axial piston motor in swash plate design without the interposition of a reduction gear. The two axial piston motors of this single-wheel drive are arranged in receiving holders at the ends of a cross member and secured thereto. The cross member is mounted on the vehicle frame of the forklift. When tilting a mast mounted on the cross member this is rotated together with the axial piston in its storage on the vehicle frame.
Ein gattungsgemäßer Fahrantrieb ist ferner in der
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 is based on the object to provide a hydrostatic drive of the type mentioned, the structure is simplified.
Diese Aufgabe wird erfindungsgemäß gelöst durch eine Vorrichtung nach Patentanspruch 1. Weiterbildungen der Vorrichtung sind Gegenstand der Unteransprüche.This object is achieved by a device according to claim 1. Further developments of the device are the subject of the dependent claims.
Die Aufgabe wird dadurch gelöst, dass die Axialkolbenmotoren Bestandteil einer geschlossenen Antriebsachse sind, die ein Achsrohr aufweist, das als Gehäuse der Axialkolbenmotoren ausgebildet ist, wobei an beiden Enden des Achsrohres jeweils ein Lagerschild befestigt ist, in dem eine mit einem angeformten Flansch zur Befestigung einer Radfelge versehene Triebwelle gelagert ist, deren achsinneres freies Wellenende mit einem Zylinderblock des auf der zugeordneten Seite befindlichen Axialkolbenmotors gekoppelt ist und die mit einer Bremse in Wirkverbindung steht, die axial im Bereich der Befestigung des Lagerschilds am Achsrohr angeordnet ist.The object is achieved in that the Axialkolbenmotoren are part of a closed drive shaft having an axle tube, which is designed as a housing of the axial piston, wherein at both ends of the axle tube in each case a bearing plate is fixed, in which one with a molded flange for attachment of a Radfelge provided drive shaft is mounted, the achsinneres free shaft end is coupled to a cylinder block located on the associated side Axialkolbenmotors and which is in operative connection with a brake which is arranged axially in the attachment of the bearing plate on the axle tube.
Durch diese integrierte Bauweise können sich Vorteile hinsichtlich einer geringen Anzahl der benötigten Komponenten, einer vereinfachten Fertigung und/oder vereinfachten Montage ergeben. Hierbei sind die einzelnen Komponenten der Antriebsachse in einem Achsrohr angeordnet, das die Funktion eines gemeinsamen, tragenden Gehäuses übernimmt. Nach Entfernen des Lagerschildes kann die Bremse zu Wartungszwecken demontiert werden.This integrated design can provide advantages in terms of a small number of required components, simplified manufacturing and / or simplified installation. Here, the individual components of the drive axle are arranged in an axle tube, which takes over the function of a common, supporting housing. After removing the end shield, the brake can be disassembled for maintenance purposes.
Eine günstige Weiterbildung 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.A favorable development provides that the axial piston motors are arranged with mutually facing control sides (back-to-back construction) in the drive axle. In each case, the swash plate is located in the region of the drive axis close to the wheel, while the control side is arranged in the middle region of the drive axle.
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, a further embodiment of the invention is particularly advantageous in which common hydraulic connections are arranged on the drive axle for both axial piston motors. 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 zeigtFurther advantages and details of the invention will be explained in more detail with reference to the embodiment shown in the schematic figures. It shows
Der in
Die beiden Axialkolbenmotoren
Die beiden Axialkolbenmotoren
An dem Zentralkörper
In dem Zentralkörper
Analog zur Versorgung der beiden Axialkolbenmotoren
Ein wesentlicher Vorteil 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 (3)
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 DE10303636A1 (en) | 2004-08-12 |
DE10303636B4 true 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 |
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DE (1) | DE10303636B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006041861A1 (en) | 2006-09-06 | 2008-03-27 | Linde Material Handling Gmbh & Co. Kg | Hydrostatic drive axle with two coaxially adjacent, hydrostatic axial piston motors in swash plate design |
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1227055A (en) * | 1912-08-02 | 1917-05-22 | Charles Snow Kellogg | Differential gear. |
DE1065733B (en) * | 1959-09-17 | Daimler - Benz Aktiengesellschaft, Stuttgart-Untertürkheim | Hydrostatic drive for the wheels of vehicles, in particular motor vehicles | |
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 |
DE4228745A1 (en) * | 1992-08-28 | 1994-03-03 | Linde Ag | Drive axle for industrial vehicle - uses common hydraulic fluid storage chamber for separate hydraulic systems |
-
2003
- 2003-01-30 DE DE2003103636 patent/DE10303636B4/en not_active Expired - Fee Related
Patent Citations (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 |
DE4228745A1 (en) * | 1992-08-28 | 1994-03-03 | Linde Ag | Drive axle for industrial vehicle - uses common hydraulic fluid storage chamber for separate hydraulic systems |
Also Published As
Publication number | Publication date |
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DE10303636A1 (en) | 2004-08-12 |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: LINDE MATERIAL HANDLING GMBH & CO. KG, 63743 A, DE |
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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 |