DE202005018999U1 - Hydraulic cylinder with end position damping - Google Patents

Hydraulic cylinder with end position damping Download PDF

Info

Publication number
DE202005018999U1
DE202005018999U1 DE200520018999 DE202005018999U DE202005018999U1 DE 202005018999 U1 DE202005018999 U1 DE 202005018999U1 DE 200520018999 DE200520018999 DE 200520018999 DE 202005018999 U DE202005018999 U DE 202005018999U DE 202005018999 U1 DE202005018999 U1 DE 202005018999U1
Authority
DE
Germany
Prior art keywords
hydraulic cylinder
end position
position damping
damping
hydraulic
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 - Lifetime
Application number
DE200520018999
Other languages
German (de)
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger 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
Application filed by Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Priority to DE200520018999 priority Critical patent/DE202005018999U1/en
Priority to EP06017903.3A priority patent/EP1793050B1/en
Publication of DE202005018999U1 publication Critical patent/DE202005018999U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2214—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing the shock generated at the stroke end
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
    • F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/421—Flow control characterised by the type of actuation mechanically
    • F15B2211/424—Flow control characterised by the type of actuation mechanically actuated by an output member of the circuit
    • 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
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/755—Control of acceleration or deceleration of the output member
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/85—Control during special operating conditions
    • F15B2211/853—Control during special operating conditions during stopping

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
DE200520018999 2005-12-05 2005-12-05 Hydraulic cylinder with end position damping Expired - Lifetime DE202005018999U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200520018999 DE202005018999U1 (en) 2005-12-05 2005-12-05 Hydraulic cylinder with end position damping
EP06017903.3A EP1793050B1 (en) 2005-12-05 2006-08-28 Hydraulic cylinder with stroke end damping.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520018999 DE202005018999U1 (en) 2005-12-05 2005-12-05 Hydraulic cylinder with end position damping

Publications (1)

Publication Number Publication Date
DE202005018999U1 true DE202005018999U1 (en) 2007-04-12

Family

ID=37600749

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200520018999 Expired - Lifetime DE202005018999U1 (en) 2005-12-05 2005-12-05 Hydraulic cylinder with end position damping

Country Status (2)

Country Link
EP (1) EP1793050B1 (en)
DE (1) DE202005018999U1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB519321A (en) * 1937-09-29 1940-03-21 Vickers Inc Improvements in hydraulic feed control system
US3465519A (en) * 1967-08-18 1969-09-09 Webster Electric Co Inc Hydraulic flow controlling apparatus
JPS57161307A (en) * 1981-09-28 1982-10-04 Amada Co Ltd Adjusting device of stroke in cylinder mechanism
US4915014A (en) * 1985-05-08 1990-04-10 Deere & Company Disk harrow hydraulic wing balancing system
DE69028291T3 (en) * 1989-06-26 2000-03-02 Komatsu Mfg Co Ltd HYDRAULIC CIRCUIT
FR2699609B1 (en) * 1992-12-22 1995-02-10 Hydromo Method and device for setting in motion or stopping a hydraulic motor driving an assembly with high inertia.
SE517901C2 (en) * 2000-08-15 2002-07-30 Parker Hannifin Ab Control system for pneumatic drive devices
DE20114538U1 (en) * 2001-09-03 2001-10-31 Kuepper Weisser Gmbh Hydraulic system for the self-weight relief of attachments
ITMO20030129A1 (en) * 2003-05-07 2004-11-08 Fluid S R L G VALVE FOR FLUID DYNAMICS, IN PARTICULAR OF THE UNIDIRECTIONAL TYPE, ADJUSTABLE PILOT CHOKER.
US6868672B2 (en) * 2003-05-13 2005-03-22 Sauer-Danfoss, Inc. Method of controlling a swinging boom and apparatus for controlling the same
DE10331216B3 (en) * 2003-07-10 2004-09-09 Hydac System Gmbh Liquid cooling device for cooling liquid has second fluid pump pumping second form of fluid through second circuit

Also Published As

Publication number Publication date
EP1793050A2 (en) 2007-06-06
EP1793050A3 (en) 2011-08-03
EP1793050B1 (en) 2015-10-14

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20070516

R150 Term of protection extended to 6 years

Effective date: 20090115

R151 Term of protection extended to 8 years
R151 Term of protection extended to 8 years

Effective date: 20120118

R152 Term of protection extended to 10 years

Effective date: 20140115

R071 Expiry of right