EP2256082A3 - Hydrostatic drive system for a mobile work machine - Google Patents
Hydrostatic drive system for a mobile work machine Download PDFInfo
- Publication number
- EP2256082A3 EP2256082A3 EP10004441A EP10004441A EP2256082A3 EP 2256082 A3 EP2256082 A3 EP 2256082A3 EP 10004441 A EP10004441 A EP 10004441A EP 10004441 A EP10004441 A EP 10004441A EP 2256082 A3 EP2256082 A3 EP 2256082A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive system
- work machine
- brake
- mobile work
- hydrostatic drive
- 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
- 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
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/003—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors with multiple outputs
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Power Steering Mechanism (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Die Erfindung betrifft ein hydrostatisches Antriebssystem einer mobilen Arbeitsmaschine, insbesondere eines Flurförderzeugs, mit einer Pumpe (1), die zur Versorgung mindestens eines Verbrauchers einer Arbeitshydraulik (2) und einer hydraulischen Lenkung (3) vorgesehen ist, sowie mit einer hydraulischen mittels eines Bremsdruckes steuerbaren Bremseinrichtung (20), wobei in einer Förderleitung (4) der Pumpe (1) ein Prioritätsventil (5) zur bevorzugten Versorgung der Lenkung (3) angeordnet ist. Zur Erzeugung des Bremsdruckes ist eine mit der Förderleitung (4) der Pumpe (1) stromauf des Prioritätsventils (5) der Lenkung (3) in Verbindung stehende Steuerdruckleitung (25) vorgesehen. Die Steuerdruckleitung (25) ist zu einem Bremsventil (21) der Bremseinrichtung (20) geführt, wobei in der Steuerdruckleitung (25) ein Druckminderventil (26) angeordnet ist. The invention relates to a hydrostatic drive system of a mobile work machine, in particular of a truck, with a pump (1) which is provided to supply at least one consumer of a working hydraulics (2) and a hydraulic steering (3), as well as with a hydraulic controllable by means of a brake pressure Braking device (20), wherein in a delivery line (4) of the pump (1) a priority valve (5) for the preferred supply of the steering (3) is arranged. To generate the brake pressure, a control pressure line (25) communicating with the delivery line (4) of the pump (1) upstream of the priority valve (5) of the steering (3) is provided. The control pressure line (25) is guided to a brake valve (21) of the brake device (20), wherein in the control pressure line (25) a pressure reducing valve (26) is arranged.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910022468 DE102009022468A1 (en) | 2009-05-25 | 2009-05-25 | Hydrostatic drive system of a mobile work machine |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2256082A2 EP2256082A2 (en) | 2010-12-01 |
EP2256082A3 true EP2256082A3 (en) | 2011-01-19 |
EP2256082B1 EP2256082B1 (en) | 2015-07-29 |
EP2256082B9 EP2256082B9 (en) | 2015-10-14 |
Family
ID=42671861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10004441.1A Not-in-force EP2256082B9 (en) | 2009-05-25 | 2010-04-27 | Hydrostatic drive system for a mobile work machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2256082B9 (en) |
DE (1) | DE102009022468A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107842533B (en) * | 2016-09-19 | 2020-03-31 | 比亚迪股份有限公司 | Priority valve device and vehicle with same |
CN107842531B (en) * | 2016-09-21 | 2019-11-22 | 比亚迪股份有限公司 | The hydraulic integrated control system and vehicle of vehicle |
CN111765135B (en) * | 2020-07-10 | 2022-05-06 | 中国铁建重工集团股份有限公司 | Hydraulic control system for arch frame operation trolley |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19746090A1 (en) * | 1997-09-24 | 1999-03-25 | Linde Ag | Hydrostatic drive system for vehicle e.g. forklift |
DE10151831A1 (en) * | 2001-10-20 | 2003-05-08 | Still Gmbh | Hydraulic system for an industrial truck has an additional connection valve linking the load pressure line to the transport line so that a storage brake can be activated without simultaneous movement of a hydraulic load |
DE202004010530U1 (en) * | 2004-07-06 | 2004-12-09 | Deere & Company, Moline | Hydraulic circuit with priority valve for vehicle has at least one further priority valve with which priority of only one load is regulated and that also has pressure adaptation function |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10315496A1 (en) | 2003-04-04 | 2004-10-21 | Linde Ag | Hydraulic system for a battery-operated industrial truck has two hydraulic pumps, the second pump being used for additional supply to a lifting mechanism |
DE10315494A1 (en) | 2003-04-04 | 2004-10-21 | Linde Ag | Hydraulic system for electrically driven floor conveyor, has pump that is driven by electric motor to cool structural component of floor conveyor and actuate hydraulic steering mechanism and drive axle |
-
2009
- 2009-05-25 DE DE200910022468 patent/DE102009022468A1/en not_active Withdrawn
-
2010
- 2010-04-27 EP EP10004441.1A patent/EP2256082B9/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19746090A1 (en) * | 1997-09-24 | 1999-03-25 | Linde Ag | Hydrostatic drive system for vehicle e.g. forklift |
DE10151831A1 (en) * | 2001-10-20 | 2003-05-08 | Still Gmbh | Hydraulic system for an industrial truck has an additional connection valve linking the load pressure line to the transport line so that a storage brake can be activated without simultaneous movement of a hydraulic load |
DE202004010530U1 (en) * | 2004-07-06 | 2004-12-09 | Deere & Company, Moline | Hydraulic circuit with priority valve for vehicle has at least one further priority valve with which priority of only one load is regulated and that also has pressure adaptation function |
Also Published As
Publication number | Publication date |
---|---|
EP2256082A2 (en) | 2010-12-01 |
DE102009022468A1 (en) | 2010-12-02 |
EP2256082B9 (en) | 2015-10-14 |
EP2256082B1 (en) | 2015-07-29 |
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