EP1288507A3 - Low-loss drive system for a hydraulic actuator - Google Patents

Low-loss drive system for a hydraulic actuator Download PDF

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Publication number
EP1288507A3
EP1288507A3 EP02023249A EP02023249A EP1288507A3 EP 1288507 A3 EP1288507 A3 EP 1288507A3 EP 02023249 A EP02023249 A EP 02023249A EP 02023249 A EP02023249 A EP 02023249A EP 1288507 A3 EP1288507 A3 EP 1288507A3
Authority
EP
European Patent Office
Prior art keywords
pump
working chamber
low
drive system
hydraulic actuator
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
Application number
EP02023249A
Other languages
German (de)
French (fr)
Other versions
EP1288507B1 (en
EP1288507A2 (en
Inventor
Bernhard Zervas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Fluid Power GmbH
Original Assignee
Aeroquip Vickers International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19642163A external-priority patent/DE19642163A1/en
Application filed by Aeroquip Vickers International GmbH filed Critical Aeroquip Vickers International GmbH
Priority claimed from EP96944055A external-priority patent/EP0873475B1/en
Publication of EP1288507A2 publication Critical patent/EP1288507A2/en
Publication of EP1288507A3 publication Critical patent/EP1288507A3/en
Application granted granted Critical
Publication of EP1288507B1 publication Critical patent/EP1288507B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • F15B2211/20515—Electric motor
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20569—Type of pump capable of working as pump and motor
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/265—Control of multiple pressure sources
    • F15B2211/2658—Control of multiple pressure sources by control of the prime movers
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/27—Directional control by means of the pressure source
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30585—Assemblies of multiple valves having a single valve for multiple output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6658—Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Die Erfindung betrifft einen Antrieb für einen hydraulischen, doppelt wirkenden Aktuator (1), der zwei Arbeitskammern (9,11) umfasst, deren Volumen veränderbar ist und die mittels eines durch Volumenveränderung angetriebenen Aktuatorelements (5) voneinander getrennt sind, und der zwei die Arbeitskammern (9,11) mit einem Hydraulikmedium versorgenden Pumpen (15,15') umfasst. Dieser zeichnet sich dadurch aus, dass jeder Pumpe (15,15') jeweils eine als Elektromotor (19,19') ausgebildete Antriebseinrichtung (17,17') zur Abgabe voneinander unterschiedlich einstellbarer Fördermengen zugeordnet ist, dass die Elektromotoren (19,19') über jeweils eine Steuerleitung (37,37') mit einer Ansteuerung (35) verbunden sind, und dass jeder Arbeitskammer (9,11) jeweils eine Pumpe (15,15') direkt zugeordnet ist, wobei die jeweilige Pumpe (15,15') aus einem Tank (25) in die Arbeitskammer (9,11) fördert oder das Hydraulikmedium aus der Arbeitskammer (9,11) über die Zuleitung (13,13') zu der jeweiligen Pumpe (15,15') zurückgedrückt wird.

Figure 00000001
The invention relates to a drive for a hydraulic, double-acting actuator (1) which comprises two working chambers (9, 11), the volume of which can be changed and which are separated from one another by means of an actuator element (5) driven by volume change, and the two of which are the working chambers (9, 11) with pumps (15, 15 ') supplying a hydraulic medium. This is characterized in that each pump (15, 15 ') is assigned a drive device (17, 17') designed as an electric motor (19, 19 ') for delivering differently adjustable delivery rates, that the electric motors (19, 19' ) are each connected to a control (35) via a control line (37, 37 '), and that a pump (15, 15') is directly assigned to each working chamber (9, 11), the respective pump (15, 15 ') promotes from a tank (25) into the working chamber (9, 11) or the hydraulic medium from the working chamber (9, 11) is pushed back via the feed line (13, 13') to the respective pump (15, 15 ').
Figure 00000001
EP02023249A 1996-01-10 1996-12-21 Low-loss drive system for a hydraulic actuator Expired - Lifetime EP1288507B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19600650A DE19600650C2 (en) 1996-01-10 1996-01-10 Drive for a hydraulic double-acting actuator
DE19600650 1996-01-10
DE19642163 1996-10-12
DE19642163A DE19642163A1 (en) 1996-01-10 1996-10-12 Method for operating multiple hydraulic actuators
EP96944055A EP0873475B1 (en) 1996-01-10 1996-12-21 Low-loss drive system for a plurality of hydraulic actuators

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP96944055A Division EP0873475B1 (en) 1996-01-10 1996-12-21 Low-loss drive system for a plurality of hydraulic actuators

Publications (3)

Publication Number Publication Date
EP1288507A2 EP1288507A2 (en) 2003-03-05
EP1288507A3 true EP1288507A3 (en) 2003-05-07
EP1288507B1 EP1288507B1 (en) 2006-01-18

Family

ID=7782449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023249A Expired - Lifetime EP1288507B1 (en) 1996-01-10 1996-12-21 Low-loss drive system for a hydraulic actuator

Country Status (4)

Country Link
EP (1) EP1288507B1 (en)
DE (2) DE19600650C2 (en)
IN (1) IN188385B (en)
ZA (1) ZA9777B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10084361T1 (en) * 1999-03-19 2002-04-25 Caterpillar S A R L C O Caterp Vehicle material ejection control system and method
US6374606B1 (en) 1999-03-19 2002-04-23 Caterpillar S.A.R.L. Dual pump ejector system for articulated trucks and the like having horizontal discharge
DE102005010638A1 (en) * 2005-03-08 2006-09-28 Bosch Rexroth Aktiengesellschaft Hydraulic actuating device, in particular for a convertible
DE102008039011B4 (en) * 2008-08-21 2020-01-16 MAE Maschinen- u. Apparatebau Götzen GmbH Hydraulic drive arrangement without accumulator and method for hydraulically driving a consumer without accumulator
DE102008053766A1 (en) * 2008-10-21 2010-04-22 Voith Patent Gmbh Hydraulic press drive and method for operating a hydraulic press drive
DE102010017912B4 (en) * 2010-04-21 2022-08-25 Voith Patent Gmbh Hydraulic drive and method of operating a hydraulic drive
EP2712688B1 (en) 2012-09-28 2020-12-02 Siemens Aktiengesellschaft Die cushion drive and method for operating a die cushion drive
DE102013212937A1 (en) * 2013-07-03 2014-07-10 Voith Patent Gmbh Device for opening and closing guide vane of hydraulic machine e.g. water turbine, has two fixed displacement pumps driven by rotation speed-variable drive and operated on hydraulic cylinder over hydraulic system
EP2824334A1 (en) 2013-07-08 2015-01-14 Siemens Aktiengesellschaft Hydraulic linear drive device
CN104179736B (en) * 2014-08-15 2016-08-24 徐工集团工程机械股份有限公司科技分公司 A kind of engineering machinery constant displacement pump speed-regulating hydraulic system
DE102014218885A1 (en) 2014-09-19 2016-03-24 Voith Patent Gmbh Hydraulic drive with fast lift and load stroke
DE102014218884B4 (en) * 2014-09-19 2020-12-10 Voith Patent Gmbh Hydraulic drive with rapid lift and load lift
JPWO2017056702A1 (en) * 2015-09-28 2018-06-14 ボッシュ・レックスロス株式会社 Hydraulic cylinder drive
EP3173163A1 (en) 2015-11-30 2017-05-31 Siemens Aktiengesellschaft Method for controlling or regulating a motion of a tool, hydraulic system, draw cushion press and control device
CN112739914B (en) 2018-08-21 2024-02-20 西门子能源美国公司 Double acting hydraulic actuator with different pumps for each actuation direction
CN109915442A (en) * 2019-03-19 2019-06-21 江门市蒙德电气股份有限公司 A kind of Position of Hydraulic Cylinder control system and control method adjusted based on bidirectional pressure inlet
DE102019121974A1 (en) 2019-08-15 2021-02-18 Voith Patent Gmbh Overheating protection for hydraulic systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106188A (en) * 1981-09-21 1983-04-07 Otis Eng Co Hydraulic cylinder control
EP0314660A1 (en) * 1987-10-28 1989-05-03 BT Industries Aktiebolag A hydraulic lifting arrangement
DE4030950A1 (en) * 1990-09-29 1992-04-02 Bosch Gmbh Robert Hydraulic controller for servomotor esp. on agricultural machinery - performs operational mode selection between simple and double-acting hydraulic controls by means of electronic logic

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148174A1 (en) * 1981-12-05 1983-06-09 Robert Bosch Gmbh, 7000 Stuttgart ELECTROHYDRAULIC ACTUATOR
DE4008792A1 (en) * 1990-03-19 1991-09-26 Rexroth Mannesmann Gmbh DRIVE FOR A HYDRAULIC CYLINDER, IN PARTICULAR DIFFERENTIAL CYLINDER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106188A (en) * 1981-09-21 1983-04-07 Otis Eng Co Hydraulic cylinder control
EP0314660A1 (en) * 1987-10-28 1989-05-03 BT Industries Aktiebolag A hydraulic lifting arrangement
DE4030950A1 (en) * 1990-09-29 1992-04-02 Bosch Gmbh Robert Hydraulic controller for servomotor esp. on agricultural machinery - performs operational mode selection between simple and double-acting hydraulic controls by means of electronic logic

Also Published As

Publication number Publication date
DE19600650C2 (en) 2003-05-28
DE59610776D1 (en) 2003-11-20
ZA9777B (en) 1997-07-11
DE19600650A1 (en) 1997-07-24
EP1288507B1 (en) 2006-01-18
IN188385B (en) 2002-09-14
EP1288507A2 (en) 2003-03-05

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